styles.css

/* ====================================
   STRATUM V2 - STYLES
   ==================================== */

/* CSS Custom Properties (Design Tokens) */
:root {
  /* LIGHT MODE - Swiss Style */
  --background: 0 0% 100%;
  --foreground: 0 0% 9%;
  --card: 0 0% 100%;
  --primary: 190 100% 45%; /* Cyan */
  --muted: 240 4.8% 95.9%;
  --muted-foreground: 240 3.8% 46.1%;
  --accent: 240 4.8% 95.9%;
  --border: 240 5.9% 90%;

  /* Colors */
  --cyan-400: #22d3ee;
  --cyan-500: #06b6d4;
  --cyan-600: #0891b2;
  --red-500: #ef4444;
  --red-600: #dc2626;
  --discord-color: #5865F2;
  --zinc-50: #fafafa;
  --zinc-500: #71717a;
  --zinc-800: #27272a;
  --zinc-900: #18181b;
  --zinc-950: #09090b;
  --header-offset: 70px;
}

@media (min-width: 769px) {
  :root {
    --header-offset: 110px;
  }
}

.dark {
  /* DARK MODE - Stratum Aesthetic */
  --background: 0 0% 0%; /* Pure Black */
  --foreground: 0 0% 98%;
  --card: 0 0% 4%;
  --primary: 190 100% 50%; /* Electric Cyan */
  --muted: 0 0% 10%;
  --muted-foreground: 0 0% 60%;
  --accent: 0 0% 15%;
  --border: 0 0% 15%;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s, color 0.3s;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.025em;
  color: hsl(var(--foreground));
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* Utility Classes */
.hidden { display: none !important; }
.cyan { color: var(--cyan-400); }
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 768px) {
  .hidden-mobile { display: none !important; }
}

/* Section Container */
.section-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@supports (content-visibility: auto) {
  .features,
  .modularity,
  .sv2-adoption,
  .supporters,
  .community {
    content-visibility: auto;
    contain-intrinsic-size: auto 1000px;
  }
}

/* ====================================
   NAVBAR
   ==================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 1.5rem;
}

/* Docs pages: provide a subtle header backdrop so content doesn't peek above/through the floating navbar pill while scrolling. */
body[data-spec-repo] .navbar {
  background: linear-gradient(
    to bottom,
    hsl(var(--background) / 0.98) 0%,
    hsl(var(--background) / 0.88) 70%,
    hsl(var(--background) / 0) 100%
  );
}

.navbar-container {
  max-width: 80rem;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: hsl(var(--background) / 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 9999px;
  padding: 0.75rem 1.5rem;
  border: 1px solid hsl(var(--border) / 0.5);
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  transition: all 0.3s;
}

/* Mobile GPUs struggle with continuous blur compositing; use a simpler header surface. */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
  }

  .navbar-container {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: hsl(var(--background) / 0.92);
    padding: 0.55rem 0.75rem;
  }

  .navbar-logo img {
    width: clamp(7.25rem, 38vw, 9.5rem);
    height: auto;
  }

  .navbar-actions {
    gap: 0.25rem;
  }
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: opacity 0.2s;
}

.navbar-logo:hover {
  opacity: 0.8;
}

.navbar-logo img {
  height: 2rem;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

@media (min-width: 768px) {
  .navbar-logo img {
    height: 2.5rem;
  }
}

.navbar-links {
  display: none;
  gap: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: hsl(var(--muted-foreground));
}

@media (min-width: 1200px) {
  .navbar-links {
    display: flex;
  }
}

.navbar-links a {
  transition: color 0.2s;
  border-radius: 0.125rem;
}

.navbar-links a:hover {
  color: hsl(var(--foreground));
}

.navbar-links a:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--cyan-400);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

@media (min-width: 1200px) {
  .navbar-actions {
    margin-left: clamp(0.75rem, 1.6vw, 1.5rem);
  }
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(var(--background) / 0.5);
  border: 1px solid hsl(var(--border));
  border-radius: 9999px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  cursor: pointer;
  color: hsl(var(--foreground));
  opacity: 0.7;
  transition: opacity 0.2s, background-color 0.2s, border-color 0.2s;
}

.lang-toggle:hover {
  opacity: 1;
  background: hsl(var(--accent));
  border-color: hsl(var(--border));
}

.start-mining-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  border: 1px solid color-mix(in oklab, var(--cyan-400) 45%, hsl(var(--border)));
  background: hsl(var(--background) / 0.5);
  color: var(--cyan-400);
  text-decoration: none;
  box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.12);
  transition: background-color 0.2s, border-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.start-mining-nav:hover {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
  background: hsl(var(--accent));
  box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.28), 0 0 0 3px rgba(34, 211, 238, 0.08);
}

.start-mining-nav:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--cyan-400), 0 0 0 4px hsl(var(--background));
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 100;
  min-width: 120px;
}

.lang-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown a {
  display: block;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  transition: background-color 0.2s;
  white-space: nowrap;
}

.lang-dropdown a:first-child {
  border-radius: 0.5rem 0.5rem 0 0;
}

.lang-dropdown a:last-child {
  border-radius: 0 0 0.5rem 0.5rem;
}

.lang-dropdown a:hover {
  background: hsl(var(--muted));
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: hsl(var(--foreground));
  transition: opacity 0.2s;
  position: relative;
  width: 40px;
  height: 40px;
  border: 1px solid hsl(var(--border));
  border-radius: 9999px;
  background: hsl(var(--background) / 0.5);
}

.mobile-menu-toggle:hover {
  opacity: 0.7;
  background: hsl(var(--accent));
}

.mobile-menu-toggle .close-icon {
  display: none;
  position: absolute;
}

.mobile-menu-toggle .hamburger-icon {
  display: block;
  position: absolute;
}

.mobile-menu-toggle.active .hamburger-icon {
  display: none;
}

.mobile-menu-toggle.active .close-icon {
  display: block;
}

/* Hide mobile menu toggle on desktop */
@media (min-width: 1200px) {
  .mobile-menu-toggle {
    display: none;
  }
}

@media (max-width: 1199px) {
  .navbar-logo {
    min-width: 0;
    flex: 1 1 auto;
  }

  .navbar-container {
    padding: 0.65rem 1rem;
  }

  .navbar-links {
    gap: 1.25rem;
    font-size: 0.8125rem;
  }

  .navbar-actions {
    gap: 0.375rem;
  }

  .navbar-actions .lang-toggle,
  .navbar-actions .start-mining-nav,
  .navbar-actions .theme-toggle,
  .mobile-menu-toggle {
    width: 2.75rem;
    height: 2.75rem;
  }
}

/* Narrow-phone override (must come after <=1199px block) */
@media (max-width: 768px) {
  .navbar-container {
    padding: 0.5rem 0.65rem;
  }

  .navbar-actions {
    gap: 0.2rem;
  }

  .navbar-actions .lang-toggle,
  .navbar-actions .start-mining-nav,
  .navbar-actions .theme-toggle,
  .mobile-menu-toggle {
    width: 2.35rem;
    height: 2.35rem;
  }

  .navbar-logo img {
    width: clamp(6.5rem, 34vw, 8.75rem);
  }
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--mobile-menu-top, 70px);
  left: 0;
  right: 0;
  bottom: 0;
  background: hsl(var(--background));
  z-index: 40;
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.mobile-menu.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1.5rem calc(1.5rem + env(safe-area-inset-bottom));
  gap: 0.5rem;
}

.mobile-menu-nav a {
  display: block;
  padding: 1rem 1rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: hsl(var(--foreground));
  text-decoration: none;
  border-radius: 0.5rem;
  transition: all 0.2s;
}

.mobile-menu-nav a:hover {
  background: hsl(var(--muted));
}

.mobile-menu-nav a.active {
  background: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.mobile-menu-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  border: none;
  background: hsl(0 0% 0% / 0.36);
  z-index: 39;
  opacity: 0;
  transition: opacity 0.2s ease;
}

body.mobile-menu-open .mobile-menu-backdrop {
  display: block;
  opacity: 1;
}

body.mobile-menu-open .navbar-container {
  background: hsl(var(--background));
  border-color: hsl(var(--border));
}

/* Hide mobile menu on desktop */
@media (min-width: 1200px) {
  .mobile-menu {
    display: none !important;
  }

  .mobile-menu-backdrop {
    display: none !important;
  }
}

.theme-toggle {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(var(--background) / 0.5);
  backdrop-filter: blur(4px);
  border: 1px solid hsl(var(--border));
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s;
  color: hsl(var(--foreground));
}

.theme-toggle:hover {
  background: hsl(var(--accent));
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
  position: absolute;
  transition: all 0.3s;
}

.theme-toggle .sun-icon {
  transform: rotate(0) scale(1);
}

.theme-toggle .moon-icon {
  transform: rotate(90deg) scale(0);
}

.dark .theme-toggle .sun-icon {
  transform: rotate(-90deg) scale(0);
}

.dark .theme-toggle .moon-icon {
  transform: rotate(0) scale(1);
}

/* ====================================
   HERO SECTION
   ==================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: clamp(5rem, 10vh, 7rem) clamp(1rem, 4vw, 3rem) clamp(1.5rem, 4vh, 2.5rem);
  overflow: hidden;
}

@media (max-width: 600px) {
  .hero {
    padding: calc(clamp(6.5rem, 14vh, 9rem) + env(safe-area-inset-top)) 1.5rem 1.5rem;
  }
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 800px;
  opacity: 0.4;
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  border-radius: 9999px;
  mix-blend-mode: screen;
}

.hero-gradient-1 {
  top: -20%;
  left: 25%;
  width: 600px;
  height: 600px;
  background: var(--cyan-500);
  filter: blur(120px);
  opacity: 0.5;
  animation: pulse 4s ease-in-out infinite;
}

.dark .hero-gradient-1 { opacity: 0.5; }
:root:not(.dark) .hero-gradient-1 { opacity: 0.2; }

.hero-gradient-2 {
  top: -10%;
  right: 25%;
  width: 500px;
  height: 500px;
  background: #2563eb;
  filter: blur(120px);
  opacity: 0.5;
}

.dark .hero-gradient-2 { opacity: 0.5; }
:root:not(.dark) .hero-gradient-2 { opacity: 0.2; }

.hero-gradient-3 {
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: var(--cyan-400);
  filter: blur(100px);
  opacity: 0.3;
}

.dark .hero-gradient-3 { opacity: 0.3; }
:root:not(.dark) .hero-gradient-3 { opacity: 0.1; }

@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.05); }
}

/* Large blurred gradients are expensive on mid/low-end devices; disable on mobile. */
@media (max-width: 768px) {
  .hero-gradient {
    display: none;
  }
}

.hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 58rem;
  margin: 0 auto;
  text-align: center;
  /* Keep LCP text immediately paintable; avoid entry animation delaying render timing. */
  animation: none;
}

.hero-layout {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  justify-items: center;
  gap: clamp(0.75rem, 2.2vh, 1.5rem);
}

.hero-miner {
  position: relative;
  z-index: 1;
  width: clamp(8.75rem, 11vw, 11.5rem);
  aspect-ratio: 108 / 126;
  flex-shrink: 0;
  line-height: 0;
  contain: layout paint;
}

.hero-miner-svg {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  fill: none;
  stroke: hsl(var(--primary));
  filter: drop-shadow(0 0 10px hsl(var(--primary) / 0.22));
  shape-rendering: geometricPrecision;
}

.hero-miner-face {
  fill: hsl(var(--primary) / 0.018);
  stroke: hsl(var(--primary) / 0.55);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.hero-miner-fan-ring {
  fill: none;
  stroke: hsl(var(--primary));
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.hero-miner-fan-ring.is-inner {
  stroke-width: 0.4;
  stroke-opacity: 0.32;
}

.hero-miner-blades {
  transform-box: fill-box;
  transform-origin: center;
  animation: hero-miner-fan-spin 3s linear infinite;
}

.hero-miner-blades path {
  fill: hsl(var(--primary) / 0.1);
  stroke: hsl(var(--primary));
  stroke-width: 0.4;
  vector-effect: non-scaling-stroke;
}

.hero-miner-hub {
  fill: hsl(var(--primary) / 0.22);
  stroke: hsl(var(--primary));
  stroke-width: 0.9;
  vector-effect: non-scaling-stroke;
}

.hero-miner-hub.is-inner {
  fill: hsl(var(--primary) / 0.14);
  stroke-width: 0.6;
}

.hero-miner-hub.is-core {
  fill: hsl(var(--primary) / 0.45);
  stroke-width: 0.7;
}

.hero-miner-screws circle {
  fill: hsl(var(--primary) / 0.06);
  stroke: hsl(var(--primary));
  stroke-width: 0.55;
  stroke-opacity: 0.45;
  vector-effect: non-scaling-stroke;
}

@keyframes hero-miner-fan-spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  position: relative;
  z-index: 1;
  font-size: 3rem;
  font-weight: 500;
  letter-spacing: -0.025em;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 4.5rem;
  }
}

.hero p {
  position: relative;
  z-index: 1;
  font-size: 1.25rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 2rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  font-weight: 300;
}

@media (max-width: 600px) {
  .hero-layout {
    gap: 0.65rem;
  }

  .hero-miner {
    width: clamp(7.25rem, 30vw, 8.5rem);
  }

  .hero h1 {
    font-size: 2.6rem;
    line-height: 1.15;
  }

  .hero p {
    font-size: 1.0625rem;
    margin-bottom: 1.5rem;
  }
}

@media (max-height: 820px) and (min-width: 700px) {
  .hero {
    padding-top: clamp(4.5rem, 8vh, 5.75rem);
  }

  .hero-miner {
    width: clamp(7.5rem, 9vw, 9rem);
  }

  .hero h1 {
    font-size: clamp(3rem, 5vw, 4rem);
    margin-bottom: 1rem;
  }

  .hero p {
    margin-bottom: 1.35rem;
  }
}

@media (max-width: 600px) and (max-height: 740px) {
  .hero {
    padding: calc(5.5rem + env(safe-area-inset-top)) 1.25rem 1rem;
  }

  .hero-miner {
    width: clamp(6.25rem, 25vw, 7rem);
  }

  .hero h1 {
    font-size: 2.25rem;
    margin-bottom: 0.85rem;
  }

  .hero p {
    font-size: 1rem;
    line-height: 1.45;
    margin-bottom: 1rem;
  }

  .cta-button {
    padding: 0.65rem 1.5rem;
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-miner-blades {
    animation: none;
  }
}

/* Defer layout/paint work for below-the-fold sections to improve first render. */
@supports (content-visibility: auto) {
  body > section:not(.hero) {
    content-visibility: auto;
    contain-intrinsic-size: auto 1000px;
  }
}

.cta-button {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-width: 13.25rem;
  padding: 0.85rem 2.25rem;
  background: hsl(var(--foreground));
  color: hsl(var(--background));
  border: none;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1.125rem;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 14px 34px hsl(var(--primary) / 0.16);
  transition: transform 0.2s, background-color 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
  background: hsl(var(--foreground) / 0.8);
  box-shadow: 0 18px 42px hsl(var(--primary) / 0.22);
  transform: translateY(-1px);
}

.cta-button:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--cyan-400), 0 0 0 4px hsl(var(--background));
}

/* ====================================
   FEATURES SECTION
   ==================================== */
.features {
  padding: 7rem 1.5rem;
  background: hsl(var(--background));
  border-top: 1px solid hsl(var(--border));
}

@media (max-width: 768px) {
  .features {
    padding: 4.5rem 1.25rem;
  }
}

.features-header {
  margin-bottom: 4rem;
  text-align: center;
}

.features-header h2 {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 2rem;
  letter-spacing: -0.025em;
}

@media (min-width: 768px) {
  .features-header h2 {
    font-size: 4.5rem;
  }
}

.features-header p {
  font-size: 1.25rem;
  color: hsl(var(--muted-foreground));
  max-width: 48rem;
  margin: 0 auto;
  line-height: 1.7;
  font-weight: 300;
}

@media (min-width: 768px) {
  .features-header p {
    font-size: 1.5rem;
  }
}

/* Feature Tabs */
.feature-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .feature-tabs {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1280px) {
  .feature-tabs {
    grid-template-columns: repeat(8, 1fr);
  }
}

.feature-tab {
  border-radius: 1.5rem;
  aspect-ratio: 4/3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.5rem;
  transition: all 0.3s;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  cursor: pointer;
  color: hsl(var(--muted-foreground));
}

.feature-tab:hover {
  background: hsl(var(--muted) / 0.5);
  color: hsl(var(--foreground));
}

.feature-tab.active {
  background: hsl(var(--primary) / 0.1);
  border-color: hsl(var(--primary) / 0.5);
  color: hsl(var(--primary));
}

.feature-tab svg {
  width: 32px;
  height: 32px;
  transition: color 0.2s;
}

.feature-tab span {
  font-size: 0.75rem;
  font-weight: 500;
  transition: color 0.2s;
  text-align: center;
  line-height: 1.2;
  max-width: 100%;
  white-space: normal;
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
}

@media (min-width: 768px) {
  .feature-tab span {
    font-size: 0.875rem;
  }
}

/* Feature Content */
.feature-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  min-height: 400px;
}

.feature-content > * {
  min-width: 0;
}

@media (min-width: 1024px) {
  .feature-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-description {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1.5rem;
  position: relative;
  isolation: isolate;
}

@media (min-width: 768px) {
  .feature-description {
    padding: 3rem;
  }
}

.feature-text {
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.feature-text h3 {
  font-size: 1.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.feature-subtitle {
  font-size: 1.25rem;
  color: hsl(var(--primary));
  margin-bottom: 1.5rem;
}

.feature-body {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
}

/* Feature Visualization */
.feature-visualization {
  position: relative;
  isolation: isolate;
}


.visualization-panel {
  height: 100%;
  min-height: 320px;
  animation: fadeInScale 0.2s ease-out;
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* Visual Panel (for Privacy & Control) */
.visual-panel {
  position: relative;
  height: 100%;
  min-height: 320px;
  border: 1px solid hsl(var(--border));
  border-radius: 1.5rem;
  overflow: hidden;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  background: var(--zinc-50);
}

.dark .visual-panel {
  background: #0D0D0D;
}

@media (min-width: 768px) {
  .visual-panel {
    padding: 3rem;
  }
}

@media (max-width: 768px) {
  .visual-panel {
    padding: 1.25rem;
  }
}

.window-controls {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  opacity: 0.3;
}

.window-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 9999px;
}

.window-dot.red { background: #ef4444; }
.window-dot.yellow { background: #eab308; }
.window-dot.green { background: #22c55e; }

/* Privacy Visual */
.privacy-visual {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 2rem 1rem;
  gap: 3rem;
}

@media (max-width: 768px) {
  .privacy-visual {
    width: 100%;
    padding: 1.25rem 0;
    gap: 2rem;
  }
}

/* ISP Container */
.isp-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.isp-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  background: hsl(var(--muted) / 0.3);
  border: 1px solid hsl(var(--border));
  border-radius: 0.75rem;
  color: hsl(var(--muted-foreground));
}

.isp-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(var(--muted) / 0.5);
  border-radius: 0.5rem;
  color: hsl(var(--muted-foreground));
  overflow: visible;
}

.isp-box span {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Spy Eye Animations */
.spy-eye {
  overflow: visible;
}

/* Eye outline stays visible */
.eye-outline {
  opacity: 1;
}

/* Pupil tracks data flow left to right, then fades as eye closes */
.eye-pupil {
  animation: eyeTrack 8s ease-in-out infinite;
  transform-origin: center;
}

/* Closed eye line appears when eye gives up */
.eye-closed {
  animation: eyeClose 8s ease-in-out infinite;
}

@keyframes eyeTrack {
  /* Watch data flow from left to right */
  0% {
    cx: 10;
    opacity: 1;
  }
  20% {
    cx: 14;
    opacity: 1;
  }
  40% {
    cx: 12;
    opacity: 1;
  }
  /* Eye closes in defeat */
  50% {
    cx: 12;
    opacity: 0;
  }
  100% {
    cx: 12;
    opacity: 0;
  }
}

@keyframes eyeClose {
  0%, 48% {
    opacity: 0;
  }
  /* Eye closes */
  50% {
    opacity: 1;
  }
  /* Stay closed briefly */
  60% {
    opacity: 1;
  }
  /* Reopen and try again */
  70% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

/* Privacy Connection Row */
.privacy-connection-row {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 600px;
  gap: clamp(0.5rem, 3.5vw, 1.5rem);
}

.privacy-endpoint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.endpoint-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: hsl(var(--muted-foreground));
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Privacy Connection Line */
.privacy-connection-line {
  flex: 1 1 auto;
  position: relative;
  height: 3px;
  min-width: 0;
}

@media (min-width: 768px) {
  .privacy-connection-line {
    min-width: 200px;
  }
}

@media (max-width: 768px) {
  .isp-box {
    padding: 0.875rem 1.125rem;
  }

  .privacy-endpoint .miner-unit {
    width: 4rem;
    height: 4rem;
  }

  .privacy-endpoint .pool-endpoint {
    width: 4rem;
  }

  .privacy-endpoint .pool-icon {
    width: 3rem;
    height: 3rem;
  }
}

.connection-path {
  position: absolute;
  inset: 0;
  background: hsl(var(--primary) / 0.3);
  border-radius: 9999px;
}

/* Encrypted Bubbles */
.encrypted-bubble {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: hsl(var(--background));
  border: 2px solid hsl(var(--primary));
  border-radius: 50%;
  box-shadow: 0 2px 8px hsl(var(--primary) / 0.2);
  animation: bubbleFlow 4s ease-in-out infinite;
}

.encrypted-bubble svg {
  color: hsl(var(--primary));
}

.encrypted-bubble.bubble-1 {
  animation-delay: 0s;
}

.encrypted-bubble.bubble-2 {
  animation-delay: 1.33s;
}

.encrypted-bubble.bubble-3 {
  animation-delay: 2.66s;
}

@keyframes bubbleFlow {
  0% {
    left: 0;
    opacity: 0;
    transform: translateY(-50%) scale(0.8);
  }
  10% {
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
  90% {
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
  100% {
    left: calc(100% - 2rem);
    opacity: 0;
    transform: translateY(-50%) scale(0.8);
  }
}

/* Privacy Label */
.privacy-label {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: hsl(var(--background) / 0.9);
  backdrop-filter: blur(4px);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  border: 1px solid hsl(var(--primary) / 0.3);
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  color: hsl(var(--primary));
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* Control Visual */
.control-visual {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.control-flow {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.pool-box {
  width: 4rem;
  height: 4rem;
  background: hsl(var(--muted));
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid hsl(var(--border));
}

.pool-box span {
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  color: hsl(var(--muted-foreground));
}

.template-line {
  height: 1px;
  width: 6rem;
  background: hsl(var(--border));
  position: relative;
}

.template-line span {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: hsl(var(--background));
  padding: 0 0.5rem;
  font-size: 0.625rem;
  color: hsl(var(--muted-foreground));
  text-transform: uppercase;
}

.miner-box {
  width: 4rem;
  height: 4rem;
  background: hsl(var(--primary) / 0.1);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid hsl(var(--primary) / 0.2);
  box-shadow: 0 0 15px hsl(var(--primary) / 0.2);
  color: hsl(var(--primary));
}

.miner-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: hsl(var(--primary));
}

/* Flexibility Visual */
.flexibility-visual {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.module-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  max-width: 280px;
}

.module-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background: hsl(var(--background) / 0.8);
  border: 1px solid hsl(var(--primary) / 0.2);
  border-radius: 0.75rem;
  color: hsl(var(--primary));
  transition: all 0.2s;
}

.module-item:hover {
  border-color: hsl(var(--primary) / 0.4);
  background: hsl(var(--primary) / 0.05);
}

.module-item span {
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
}

/* Compatibility Visual */
.compatibility-visual {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.compat-flow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.compat-box {
  width: 4rem;
  height: 4rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}

.compat-box.sv1 {
  background: hsl(var(--muted));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
}

.compat-box.proxy {
  background: hsl(var(--primary) / 0.1);
  border: 1px solid hsl(var(--primary) / 0.3);
  color: hsl(var(--primary));
}

.compat-box.sv2 {
  background: hsl(var(--primary) / 0.15);
  border: 1px solid hsl(var(--primary) / 0.4);
  color: hsl(var(--primary));
  box-shadow: 0 0 15px hsl(var(--primary) / 0.2);
}

.compat-arrow {
  color: hsl(var(--muted-foreground));
}

.compat-label {
  font-size: 0.6875rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  color: hsl(var(--primary));
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ====================================
   PROFITABILITY CAROUSEL
   ==================================== */
.profit-carousel {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 320px;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid hsl(var(--border));
  background: var(--zinc-50);
  display: flex;
  flex-direction: column;
}

.dark .profit-carousel {
  background: #0D0D0D;
}

/* Arrow Navigation */
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  background: hsl(var(--background) / 0.9);
  border: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.carousel-arrow:hover {
  background: hsl(var(--background));
  border-color: hsl(var(--primary));
  color: hsl(var(--primary));
}

.carousel-arrow:focus {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--primary) / 0.5);
}

.carousel-prev {
  left: 0.75rem;
}

.carousel-next {
  right: 0.75rem;
}

@media (min-width: 768px) {
  .carousel-arrow {
    width: 3rem;
    height: 3rem;
  }

  .carousel-prev {
    left: 1rem;
  }

  .carousel-next {
    right: 1rem;
  }
}

.carousel-track {
  flex: 1;
  position: relative;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  padding: 1.5rem 3.5rem;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

@media (min-width: 768px) {
  .carousel-slide {
    padding: 2rem 4.5rem;
  }
}

.carousel-slide.active {
  opacity: 1;
  visibility: visible;
}

.slide-header {
  margin-bottom: 0.75rem;
  text-align: center;
}

.slide-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: hsl(var(--foreground));
}

.slide-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide-caption {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  color: hsl(var(--muted-foreground));
  text-align: center;
}

/* Carousel Dot Navigation */
.carousel-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  border-top: 1px solid hsl(var(--border) / 0.5);
}

.carousel-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 9999px;
  background: hsl(var(--muted-foreground) / 0.3);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
}

.carousel-dot:hover {
  background: hsl(var(--muted-foreground) / 0.6);
  transform: scale(1.2);
}

.carousel-dot:focus {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--primary) / 0.5);
}

.carousel-dot.active {
  background: hsl(var(--primary));
  width: 1.75rem;
}

/* Vertical Bar Chart */
.bar-chart.vertical {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.chart-bar-group {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 1.25rem;
  height: 160px;
  width: 100%;
  max-width: 280px;
}

@media (min-width: 768px) {
  .chart-bar-group {
    gap: 1.75rem;
    height: 180px;
    max-width: 320px;
  }
}

.chart-bar-group.two-bars {
  max-width: 200px;
}

@media (min-width: 768px) {
  .chart-bar-group.two-bars {
    max-width: 240px;
  }
}

.chart-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  height: 100%;
}

.bar-value-top {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: hsl(var(--foreground));
  margin-bottom: 0.5rem;
  white-space: nowrap;
}

.bar-container {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: flex-end;
  position: relative;
}

.bar-container::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: -50%;
  right: -50%;
  height: 1px;
  background: hsl(var(--border) / 0.5);
}

.bar {
  width: 100%;
  border-radius: 0.25rem 0.25rem 0 0;
  transition: height 0.6s ease;
  min-height: 2px;
}

.bar.sv1 {
  background: var(--red-500);
}

.bar.sv2 {
  background: var(--cyan-500);
}

.bar.sv2-light {
  background: var(--cyan-500);
  opacity: 0.5;
}

.bar-label {
  font-size: 0.625rem;
  font-weight: 600;
  color: hsl(var(--muted-foreground));
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-top: 0.5rem;
  text-align: center;
  white-space: nowrap;
}

.chart-col:has(.bar.sv1) .bar-label {
  color: var(--red-500);
}

.chart-col:has(.bar.sv2) .bar-label,
.chart-col:has(.bar.sv2-light) .bar-label {
  color: var(--cyan-500);
}

/* ====================================
   AUTONOMY VISUALIZATION (Slider-based)
   ==================================== */

/* Autonomy-specific content layout */
.autonomy-content {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

/* Mempool Unit */
.mempool-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.mempool-unit span {
  font-size: 0.625rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

.mempool-unit.cyan { color: var(--cyan-500); }
.mempool-unit.red { color: var(--red-500); }

.mempool-visual,
.block-visual {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 0.5rem;
  border-radius: 0.5rem;
  background: hsl(var(--background) / 0.5);
  backdrop-filter: blur(4px);
  border: 1px solid hsl(var(--border) / 0.5);
}

@media (min-width: 768px) {
  .mempool-visual,
  .block-visual {
    gap: 4px;
    padding: 0.625rem;
  }
}

.tx-row {
  display: flex;
  gap: 3px;
}

@media (min-width: 768px) {
  .tx-row {
    gap: 4px;
  }
}

/* Transaction Blocks (mempool.space style) */
.tx-block {
  width: calc(10px * var(--size, 1));
  height: calc(10px * var(--size, 1));
  min-width: 6px;
  min-height: 6px;
  max-width: 16px;
  max-height: 16px;
  background: hsl(var(--muted-foreground) / 0.25);
  border-radius: 2px;
  transition: all 0.3s;
}

@media (min-width: 768px) {
  .tx-block {
    width: calc(14px * var(--size, 1));
    height: calc(14px * var(--size, 1));
    max-width: 22px;
    max-height: 22px;
  }
}

/* Selected transactions in block */
.comparison-v2 .tx-block.selected {
  background: var(--cyan-500);
  box-shadow: 0 0 6px rgba(6, 182, 212, 0.5);
}

.comparison-v1 .tx-block.selected {
  background: var(--red-500);
  box-shadow: 0 0 6px rgba(239, 68, 68, 0.5);
}

/* Block Unit */
.block-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.block-unit span {
  font-size: 0.625rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

.block-unit.cyan { color: var(--cyan-500); }
.block-unit.red { color: var(--red-500); }

.block-unit.cyan .block-visual {
  border-color: rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.05);
}

.block-unit.red .block-visual {
  border-color: rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.05);
}

/* Autonomy Flow Visualization */
.autonomy-viz {
  position: absolute;
  left: 6rem;
  right: 6rem;
  top: 50%;
  transform: translateY(-50%);
  height: 6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

@media (min-width: 768px) {
  .autonomy-viz {
    left: 7rem;
    right: 7rem;
  }
}

.autonomy-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

/* Selector Badge */
.selector-badge {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  border-radius: 9999px;
  background: hsl(var(--background) / 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s;
}

@media (min-width: 768px) {
  .selector-badge {
    gap: 0.5rem;
    padding: 0.5rem 1rem;
  }
}

.selector-badge:hover {
  transform: scale(1.05);
}

.selector-badge span {
  font-size: 0.5625rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .selector-badge span {
    font-size: 0.625rem;
  }
}

.selector-badge.pool {
  border-color: rgba(239, 68, 68, 0.4);
  color: var(--red-500);
}

.selector-badge.miner {
  border-color: rgba(6, 182, 212, 0.4);
  color: var(--cyan-500);
}

/* ====================================
   AUTONOMY CAROUSEL
   ==================================== */
.autonomy-carousel {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 320px;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid hsl(var(--border));
  background: var(--zinc-50);
  display: flex;
  flex-direction: column;
}

.dark .autonomy-carousel {
  background: #0D0D0D;
}

/* Slide label color variants */
.slide-label.sv2-label-text {
  color: var(--cyan-500);
}

.slide-label.sv1-label-text {
  color: var(--red-500);
}

/* Autonomy Diagram Layout - centered columns */
.autonomy-diagram {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 0.5rem 1rem;
  gap: 2rem;
}

@media (min-width: 768px) {
  .autonomy-diagram {
    padding: 1rem 2rem;
    gap: 4rem;
  }
}

/* Column layout for miner/pool with block template */
.autonomy-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .autonomy-column {
    gap: 1rem;
  }
}

/* Block Unit - matches pool-endpoint structure for visual consistency */
.block-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  width: 5rem;
  flex-shrink: 0;
}

.block-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(var(--background) / 0.5);
  backdrop-filter: blur(4px);
}

.block-unit.cyan .block-icon {
  border: 1px solid var(--cyan-500);
  color: var(--cyan-500);
}

.block-unit.red .block-icon {
  border: 1px solid var(--red-500);
  color: var(--red-500);
}

.block-unit span {
  font-size: 0.625rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0.7;
}

.block-unit.cyan span { color: var(--cyan-500); }
.block-unit.red span { color: var(--red-500); }

/* Invisible placeholder to maintain layout during carousel transitions */
.block-unit.placeholder {
  visibility: hidden;
}

/* Block visual SVG (mempool.space style) */
.block-visual-svg {
  width: 24px;
  height: 24px;
}


/* Interoperability Visual */
.interoperability-visual {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  text-align: center;
  padding: 2rem 1rem;
}

.interoperability-header h4 {
  font-size: 1rem;
  font-weight: 600;
  color: hsl(var(--muted-foreground));
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.interoperability-logos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  align-items: center;
  max-width: 500px;
}

/* Interoperability logos display in full color */
.interoperability-visual .supporter-logo {
  filter: grayscale(0);
  opacity: 1;
}

.interoperability-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: hsl(var(--primary));
  transition: opacity 0.2s;
  text-decoration: none;
}

.interoperability-link:hover {
  opacity: 0.8;
}

/* Feature Link */
.feature-link {
  color: hsl(var(--primary));
  font-weight: 500;
  transition: opacity 0.2s;
}

.feature-link:hover {
  opacity: 0.8;
}

/* ====================================
   COMPARISON SLIDER
   ==================================== */
.comparison-slider {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 320px;
  border-radius: 1.5rem;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  cursor: ew-resize;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--muted) / 0.5);
}

.comparison-slider * {
  user-select: none;
  -webkit-user-select: none;
}

.dark .comparison-slider {
  background: hsl(var(--muted) / 0.5);
}

.comparison-layer {
  position: absolute;
  inset: 0;
}

.comparison-v1 {
  z-index: 10;
  width: 50%;
  left: 0;
  right: auto;
  overflow: hidden;
  border-right: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 5px 0 30px rgba(0, 0, 0, 0.1);
}

.comparison-v2 {
  z-index: 5;
}

.comparison-gradient {
  position: absolute;
  inset: 0;
}

.v1-gradient {
  background: linear-gradient(to right, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.05));
}

.v2-gradient {
  background: linear-gradient(to right, rgba(6, 182, 212, 0.05), rgba(6, 182, 212, 0.15));
}

.comparison-content {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem;
  background: var(--zinc-50);
}

.dark .comparison-content {
  background: var(--zinc-950);
}

@media (min-width: 768px) {
  .comparison-content {
    padding: 2rem 4rem;
  }
}

/* V1 content needs fixed width to match full container */
.comparison-v1 .comparison-content {
  width: var(--slider-container-width, 100%);
  right: auto;
}

/* Miner Unit */
.miner-unit {
  position: relative;
  width: 5rem;
  height: 5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.miner-unit svg {
  width: 100%;
  height: 100%;
}

.miner-unit.cyan { color: var(--cyan-500); }
.miner-unit.red { color: var(--red-500); }

.miner-unit span {
  margin-top: 0.5rem;
  font-size: 0.625rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

/* Pool Endpoint */
.pool-endpoint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  width: 5rem;
  flex-shrink: 0;
}

.pool-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(var(--background) / 0.5);
  backdrop-filter: blur(4px);
}

.pool-endpoint.cyan .pool-icon {
  border: 1px solid var(--cyan-500);
  color: var(--cyan-500);
}

.pool-endpoint.red .pool-icon {
  border: 1px solid var(--red-500);
  color: var(--red-500);
}

.pool-endpoint span {
  font-size: 0.625rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0.7;
}

.pool-endpoint.cyan span { color: var(--cyan-500); }
.pool-endpoint.red span { color: var(--red-500); }

/* Data Visualization */
.data-viz {
  position: absolute;
  left: 7rem;
  right: 7rem;
  top: 50%;
  transform: translateY(-50%);
  height: 10rem;
  display: flex;
  align-items: center;
  pointer-events: none;
}

@media (min-width: 768px) {
  .data-viz {
    left: 8rem;
    right: 8rem;
  }
}

.connection-line {
  position: absolute;
  inset: 0;
  top: 50%;
  height: 2px;
  z-index: -1;
  opacity: 0.3;
}

.connection-line.cyan { background: var(--cyan-500); }
.connection-line.red { background: var(--red-500); }

/* Binary Packets (V2) */
.binary-packets {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0 0.5rem;
}

@media (min-width: 768px) {
  .binary-packets {
    gap: 0.5rem;
  }
}

.binary-packet {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: hsl(var(--background) / 0.95);
  backdrop-filter: blur(12px);
  padding: 0.375rem 0.5rem;
  border-radius: 9999px;
  border: 1px solid rgba(6, 182, 212, 0.25);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .binary-packet {
    gap: 0.375rem;
    padding: 0.375rem 0.625rem;
  }
}

.binary-packet:hover {
  transform: scale(1.05);
}

.binary-packet .dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 9999px;
  background: var(--cyan-500);
}

.binary-packet .bits {
  font-size: 0.5625rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--cyan-500);
}

@media (min-width: 768px) {
  .binary-packet .bits {
    font-size: 0.625rem;
  }
}

/* JSON Packets (V1) */
.json-packets {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.json-packet {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: hsl(var(--background) / 0.95);
  backdrop-filter: blur(12px);
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  border: 1px solid rgba(239, 68, 68, 0.25);
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  font-size: 0.5625rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
  color: var(--red-500);
  z-index: 10;
  transition: transform 0.2s;
}

.json-packet:hover {
  transform: scale(1.05);
}

.json-packet.sensitive {
  border-color: rgba(239, 68, 68, 0.5);
}

.json-packet .unlock-icon {
  flex-shrink: 0;
  color: var(--red-500);
}

/* Encrypted Packets (Security V2) */
.encrypted-packets {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0 0.5rem;
}

@media (min-width: 768px) {
  .encrypted-packets {
    gap: 0.5rem;
  }
}

.encrypted-packet {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  background: hsl(var(--background) / 0.95);
  backdrop-filter: blur(12px);
  padding: 0.375rem 0.5rem;
  border-radius: 9999px;
  border: 1px solid rgba(6, 182, 212, 0.25);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .encrypted-packet {
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
  }
}

.encrypted-packet:hover {
  transform: scale(1.05);
}

.encrypted-packet .lock-icon {
  color: var(--cyan-500);
}

.dot-pattern {
  display: flex;
  gap: 0.125rem;
}

.dot-pattern .dot {
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 9999px;
  background: var(--cyan-500);
}

.dot-pattern .dot:nth-child(1) { opacity: 0.4; }
.dot-pattern .dot:nth-child(2) { opacity: 0.6; }
.dot-pattern .dot:nth-child(3) { opacity: 0.8; }
.dot-pattern .dot:nth-child(4) { opacity: 1; }

/* Comparison Labels */
.comparison-label {
  position: absolute;
  bottom: 1.5rem;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.025em;
  pointer-events: none;
}

.v1-label {
  left: 2rem;
  color: var(--red-600);
}

.dark .v1-label {
  color: var(--red-500);
}

.v2-label {
  right: 2rem;
  text-align: right;
  color: var(--cyan-600);
}

.dark .v2-label {
  color: var(--cyan-400);
}

/* Slider Handle */
.slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(255, 255, 255, 0.2);
  z-index: 20;
  pointer-events: none;
}

.slider-line {
  position: absolute;
  inset: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.2);
}

.slider-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2.5rem;
  height: 2.5rem;
  background: white;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  color: hsl(var(--foreground));
  transition: transform 0.2s;
}

.dark .slider-button {
  background: var(--zinc-800);
}

.comparison-slider:hover .slider-button {
  transform: translate(-50%, -50%) scale(1.1);
}

.slider-button svg {
  opacity: 0.8;
}

/* ====================================
   START MINING SECTION
   ==================================== */
.start-mining {
  --start-mining-content-width: min(100%, 64rem);
  padding: 4.5rem 1.5rem 4.75rem;
  background: hsl(var(--background));
  border-top: 1px solid hsl(var(--border));
}

@media (max-width: 768px) {
  .start-mining {
    padding: 3.25rem 1.25rem 3.75rem;
  }
}

.start-mining-header {
  text-align: center;
  margin-bottom: 1rem;
}

.start-mining-header h2 {
  font-size: 2.75rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: hsl(var(--foreground));
}

@media (min-width: 768px) {
  .start-mining-header h2 {
    font-size: 4rem;
  }
}

.start-mining-subtitle {
  margin-top: 0.875rem;
  font-size: 1.0625rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.6;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}
.start-mining-subtitle span {
  display: block;
}


.start-mining-preview {
  width: min(100%, 48rem);
  margin: 2rem auto 1rem;
  scroll-margin-top: calc(var(--header-offset) + 0.75rem);
  border-radius: 0;
  border: 0;
  background: transparent;
  padding: 0;
  overflow: visible;
  box-shadow: none;
}

.start-mining-preview img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
}

.start-mining-caption {
  display: block;
  text-align: center;
  margin-top: 0.625rem;
  font-size: 0.8125rem;
  color: hsl(var(--muted-foreground));
}

.start-mining-bridge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  margin: 1.25rem auto 0.25rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.8125rem;
}

.start-mining-preview img.start-mining-img-dark {
  display: block;
}

.start-mining-preview img.start-mining-img-light {
  display: none;
}

html:not(.dark) .start-mining-preview img.start-mining-img-dark {
  display: none;
}

html:not(.dark) .start-mining-preview img.start-mining-img-light {
  display: block;
}

.start-mining .supporter-tabs {
  margin-bottom: 1.2rem;
}

.start-mining .supporter-tab.start-mining-disabled,
.start-mining .supporter-tab:disabled {
  opacity: 1;
  pointer-events: none;
  cursor: not-allowed;
  border-color: color-mix(in oklab, var(--cyan-400) 38%, hsl(var(--border)));
  color: hsl(var(--muted-foreground));
  background: hsl(var(--muted) / 0.28);
}

.start-mining-soon {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.45rem;
  border-radius: 9999px;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cyan-300);
  background: rgba(34, 211, 238, 0.16);
}

.start-mining-flow {
  width: var(--start-mining-content-width);
  margin: 2.25rem auto 0;
  border: 1px solid hsl(var(--border));
  border-radius: 1.25rem;
  background: hsl(var(--card));
  padding: 1.25rem;
  box-shadow: 0 18px 60px hsl(var(--foreground) / 0.035);
  scroll-margin-top: calc(var(--header-offset) + 1.5rem);
}

@media (max-width: 768px) {
  .start-mining-flow {
    margin-top: 1.75rem;
    padding: 0.75rem;
    border-radius: 1rem;
  }
}

.start-mining-command-wrap {
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
  scroll-margin-top: calc(var(--header-offset) + 0.75rem);
  padding: 0.4rem;
  border-radius: 0.9rem;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.start-mining-command {
  min-width: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.8rem, 0.9vw, 0.94rem);
  line-height: 1.4;
  color: hsl(var(--foreground));
  padding: 0.38rem 0.5rem;
  white-space: pre;
  overflow-x: auto;
  text-align: left;
}

.start-mining-copy {
  padding: 0.42rem 0.8rem;
  font-size: 0.86rem;
  line-height: 1;
  gap: 0.35rem;
}

.start-mining-copy.copied,
.step-action-btn.start-mining-copy.copied {
  border-color: var(--cyan-400);
  background: rgba(34, 211, 238, 0.07);
  color: var(--cyan-400);
}

@media (max-width: 960px) {
  .start-mining-command-wrap {
    width: 100%;
    margin: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 0.8rem;
  }

  .start-mining-command {
    text-align: left;
    word-break: break-word;
  }

  .start-mining-copy {
    justify-content: center;
    width: auto;
  }
}

@media (max-width: 768px) {
  .start-mining .supporter-tabs {
    gap: 0.6rem;
    margin-bottom: 1.1rem;
  }

  .start-mining .supporter-tab {
    justify-content: center;
    min-height: 2.65rem;
    padding-inline: 1.25rem;
  }

}

/* OS Selector */
.os-selector {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto 1.75rem;
  padding: 0.25rem;
  border: 1px solid hsl(var(--border));
  border-radius: 0.875rem;
  background: hsl(var(--background));
}

.os-tab {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 0.85rem;
  border-radius: 0.625rem;
  border: 1px solid transparent;
  background: transparent;
  color: hsl(var(--muted-foreground));
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, color 0.18s;
  min-width: 0;
  min-height: 2.5rem;
}

.os-tab svg {
  transition: color 0.18s;
  width: 1rem;
  height: 1rem;
}

.os-tab .umbrel-os-logo {
  width: 1rem;
  height: 1rem;
}

.os-tab:hover {
  background: hsl(var(--muted) / 0.32);
  color: hsl(var(--foreground));
}

.os-tab.active {
  border-color: color-mix(in oklab, var(--cyan-400) 55%, transparent);
  background: rgba(34, 211, 238, 0.1);
  color: var(--cyan-400);
}

.dark .os-tab.active {
  background: rgba(34, 211, 238, 0.09);
}

/* Mining Steps */
.mining-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  margin: 0 auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  overflow: visible;
}

.docker-steps {
  display: none;
}

.start-mining-flow:not(.umbrel-active) .docker-steps {
  display: flex;
}

.umbrel-steps {
  width: 100%;
  margin: 0 auto;
}

.start-mining-flow:not(.umbrel-active) .umbrel-steps {
  display: none;
}

.umbrel-install-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.5rem;
  min-height: 10rem;
  padding: 1.25rem 0.5rem 1.5rem;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.umbrel-install-copy {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-width: 0;
}

.umbrel-install-logo {
  width: 4rem;
  height: 4rem;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid color-mix(in oklab, #5351fb 32%, hsl(var(--border)));
  border-radius: 1rem;
  background: color-mix(in oklab, #5351fb 13%, transparent);
}

.umbrel-install-logo img {
  width: 2.1rem;
  height: 2.1rem;
  filter: none;
}

.umbrel-install-copy h3 {
  margin: 0 0 0.375rem;
  font-size: 1.25rem;
  font-weight: 650;
  line-height: 1.25;
  color: hsl(var(--foreground));
}

.umbrel-install-copy p {
  margin: 0;
  max-width: 36rem;
  font-size: 1.02rem;
  line-height: 1.5;
  color: hsl(var(--muted-foreground));
}

.umbrel-primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-width: 15rem;
  min-height: 3.25rem;
  padding: 0.95rem 1.4rem;
  border: none;
  border-radius: 9999px;
  background: hsl(var(--foreground));
  color: hsl(var(--background));
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  font-family: inherit;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 14px 34px hsl(var(--primary) / 0.16);
  transition: transform 0.2s, background-color 0.2s, box-shadow 0.2s;
}

.umbrel-primary-cta:hover {
  background: hsl(var(--foreground) / 0.8);
  box-shadow: 0 18px 42px hsl(var(--primary) / 0.22);
  transform: translateY(-1px);
}

.umbrel-primary-cta:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--cyan-400), 0 0 0 4px hsl(var(--background));
}

@media (max-width: 640px) {
  .umbrel-install-card {
    grid-template-columns: 1fr;
    align-items: stretch;
    padding: 1.25rem;
  }

  .umbrel-primary-cta {
    width: 100%;
  }
}

.mining-step {
  border: none;
  border-radius: 0;
  background: transparent;
  overflow: visible;
}

.mining-step + .mining-step {
  border-top: 1px solid hsl(var(--border));
}

.mining-step-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid hsl(var(--border));
}

.mining-step--inline .mining-step-header {
  border-bottom: none;
}

.mining-step-header .docker-download-link,
.mining-step-header .step-action-btn {
  margin-left: auto;
  flex-shrink: 0;
}

.mining-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 9999px;
  background: rgba(34, 211, 238, 0.15);
  color: var(--cyan-400);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.mining-step-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: hsl(var(--foreground));
}

.mining-step-body {
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Docker Download Link */
.docker-download-link,
.step-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  border: 1.5px solid hsl(var(--border));
  background: transparent;
  color: hsl(var(--muted-foreground));
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, color 0.18s;
}

.docker-download-link:hover,
.step-action-btn:hover {
  border-color: color-mix(in oklab, var(--cyan-400) 55%, hsl(var(--border)));
  background: rgba(34, 211, 238, 0.05);
  color: hsl(var(--foreground));
}

.step-action-btn.copied {
  border-color: var(--cyan-400);
  background: rgba(34, 211, 238, 0.07);
  color: var(--cyan-400);
}

/* Runtime Sub-tabs (macOS only) */
.runtime-tabs {
  display: none;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.start-mining-flow.macos-active .runtime-tabs {
  display: flex;
}

/* Shell Sub-tabs (Windows only) */
.shell-tabs {
  display: none;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.start-mining-flow.windows-active .shell-tabs {
  display: flex;
}

.shell-tab {
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  border: 1.5px solid hsl(var(--border));
  background: transparent;
  color: hsl(var(--muted-foreground));
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.shell-tab:hover {
  border-color: color-mix(in oklab, var(--cyan-400) 55%, hsl(var(--border)));
  color: hsl(var(--foreground));
}

.shell-tab.active {
  border-color: var(--cyan-400);
  background: rgba(34, 211, 238, 0.07);
  color: var(--cyan-400);
}

/* Windows-only step 3 */
.windows-step {
  display: none;
}

.start-mining-flow.windows-active .windows-step {
  display: flex;
  flex-direction: column;
}

.non-windows-step {
  display: flex;
  flex-direction: column;
}

.start-mining-flow.windows-active .non-windows-step {
  display: none;
}

.windows-coming-soon-badge {
  margin-left: auto;
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
  border: 1px solid color-mix(in oklab, var(--cyan-400) 40%, transparent);
  border-radius: 9999px;
  padding: 0.2rem 0.6rem;
}

.windows-step-note {
  font-size: 0.825rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.55;
}

.windows-step-note p {
  margin: 0;
}

.windows-template-note {
  width: min(100%, 48rem);
  margin: 0.75rem auto 0;
  font-size: 0.825rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.55;
}

.windows-step-link {
  color: var(--cyan-400);
  text-decoration: none;
  font-weight: 500;
}

.windows-step-link:hover {
  text-decoration: underline;
}

.runtime-tab {
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  border: 1.5px solid hsl(var(--border));
  background: transparent;
  color: hsl(var(--muted-foreground));
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.runtime-tab:hover {
  border-color: color-mix(in oklab, var(--cyan-400) 55%, hsl(var(--border)));
  color: hsl(var(--foreground));
}

.runtime-tab.active {
  border-color: var(--cyan-400);
  background: rgba(34, 211, 238, 0.07);
  color: var(--cyan-400);
}

/* Override command-wrap inside step body */
.mining-step-body .start-mining-command-wrap {
  width: 100%;
  margin: 0;
  display: block;
  padding: 0.75rem 0.875rem;
  border: none;
  border-radius: 0;
  background: hsl(var(--muted) / 0.4);
}

.mining-step-body .start-mining-command {
  padding: 0;
  font-size: 0.8rem;
  display: block;
}

/* Responsive */
@media (max-width: 480px) {
  .os-selector {
    width: 100%;
    flex-wrap: wrap;
  }

  .os-tab {
    flex: 1 1 calc(50% - 0.25rem);
    padding: 0.6rem 0.5rem;
  }
}

/* ====================================
   MODULARITY SECTION
   ==================================== */
.modularity {
  position: relative;
  padding: 7rem 1.5rem;
  background: hsl(var(--background));
  border-top: 1px solid hsl(var(--border));
  overflow: hidden;
}

@media (max-width: 768px) {
  .modularity {
    padding: 4.5rem 1.25rem;
  }
}

.modularity-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.modularity-gradient {
  position: absolute;
  border-radius: 9999px;
}

.modularity-gradient-1 {
  top: -6rem;
  left: -6rem;
  height: 420px;
  width: 420px;
  background: rgba(6, 182, 212, 0.1);
  filter: blur(90px);
}

.modularity-gradient-2 {
  bottom: -7rem;
  right: -7rem;
  height: 520px;
  width: 520px;
  background: rgba(37, 99, 235, 0.1);
  filter: blur(110px);
}

.modularity-grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: stretch;
}

/* Section Label */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan-400);
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .section-label {
    font-size: 0.875rem;
  }
}

/* On mobile, show text first, then building blocks */
.modularity-text {
  order: -1;
  padding-top: 0.5rem;
}

.building-blocks {
  order: 1;
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .modularity-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }

  .modularity-text {
    order: unset;
  }

  .building-blocks {
    order: unset;
  }
}

.modularity-text h2 {
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

@media (min-width: 768px) {
  .modularity-text h2 {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .modularity-text h2 {
    font-size: 3.5rem;
  }
}

.modularity-text p {
  margin-top: 1.5rem;
  font-size: 1rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
  font-weight: 400;
}

@media (min-width: 768px) {
  .modularity-text p {
    font-size: 1.125rem;
  }
}

/* Feature List */
.modularity-features {
  margin-top: 2rem;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.modularity-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.5;
}

@media (min-width: 768px) {
  .modularity-features li {
    font-size: 1rem;
  }
}

.feature-dot {
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-400);
  margin-top: 0.5rem;
}

/* Building Blocks Visualization */
/* Note: order property is set above for mobile-first layout */

@media (min-width: 1024px) {
  .building-blocks {
    max-width: 450px;
  }
}

/* Connection Lines */
.connection-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.connection-line {
  stroke: var(--cyan-500);
  stroke-width: 1;
  opacity: 0.4;
  stroke-linecap: round;
  transition: stroke 0.3s, opacity 0.3s;
}

.dark .connection-line {
  stroke: var(--cyan-400);
  opacity: 0.3;
}

/* Block Icons - Shared Styles */
.block-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 1rem;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

@media (min-width: 768px) {
  .block-icon {
    width: 64px;
    height: 64px;
  }
}

.dark .block-icon {
  background: hsl(var(--card));
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

/* Primary Center Icon */
.block-icon-primary {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--cyan-500), var(--cyan-600));
  border: none;
  color: white;
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

@media (min-width: 768px) {
  .block-icon-primary {
    width: 96px;
    height: 96px;
  }
}

.dark .block-icon-primary {
  background: linear-gradient(135deg, var(--cyan-400), var(--cyan-500));
  box-shadow: 0 4px 30px rgba(34, 211, 238, 0.25);
}

/* Block Labels */
.block-label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.6875rem;
  font-weight: 500;
  color: hsl(var(--muted-foreground));
  text-align: center;
  white-space: nowrap;
}

@media (max-width: 480px) {
  .building-blocks {
    max-width: 320px;
  }

  .block-label {
    white-space: normal;
    max-width: 90px;
    line-height: 1.2;
  }
}

@media (min-width: 768px) {
  .block-label {
    font-size: 0.75rem;
    margin-top: 0.625rem;
  }
}

/* Center Block */
.block-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.block-center .block-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: hsl(var(--foreground));
}

@media (min-width: 768px) {
  .block-center .block-label {
    font-size: 0.875rem;
  }
}

/* Module Blocks */
.block-module {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
}

.block-module-link {
  text-decoration: none;
  color: inherit;
}

.block-module-link:focus-visible {
  outline: none;
}

.block-module-link:focus-visible .block-icon {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.15);
}

.dark .block-module-link:focus-visible .block-icon {
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.2);
}

.block-module-link:focus-visible .block-label {
  color: hsl(var(--foreground));
}

/* Module Positions - Hexagonal Layout */
.block-pos-top {
  top: 5%;
  left: 50%;
  transform: translateX(-50%);
}

.block-pos-top-right {
  top: 20%;
  right: 5%;
}

.block-pos-bottom-right {
  bottom: 20%;
  right: 5%;
}

.block-pos-bottom {
  bottom: 5%;
  left: 50%;
  transform: translateX(-50%);
}

.block-pos-bottom-left {
  bottom: 20%;
  left: 5%;
}

.block-pos-top-left {
  top: 20%;
  left: 5%;
}

/* Hover Effects */
.block-module:hover .block-icon {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.15);
}

.dark .block-module:hover .block-icon {
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.2);
}

.block-module:hover .block-label {
  color: hsl(var(--foreground));
}

/* Animation for connection lines on hover */
.building-blocks:hover .connection-line {
  opacity: 0.8;
  stroke: var(--cyan-500);
}

.dark .building-blocks:hover .connection-line {
  opacity: 0.5;
  stroke: var(--cyan-400);
}

/* Pulse animation for center block */
@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
  }
  50% {
    box-shadow: 0 4px 30px rgba(6, 182, 212, 0.5);
  }
}

/* Dark mode variant using different glow intensity */
.dark .block-icon-primary {
  animation: pulse-glow-dark 3s ease-in-out infinite;
}

@keyframes pulse-glow-dark {
  0%, 100% {
    box-shadow: 0 4px 30px rgba(34, 211, 238, 0.25);
  }
  50% {
    box-shadow: 0 4px 40px rgba(34, 211, 238, 0.4);
  }
}

.block-icon-primary {
  animation: pulse-glow 3s ease-in-out infinite;
}

/* ====================================
   SUPPORTERS SECTION
   ==================================== */
.supporters {
  padding: 7rem 1.5rem;
  background: hsl(var(--background));
  border-top: 1px solid hsl(var(--border));
}

@media (max-width: 768px) {
  .supporters {
    padding: 4.5rem 1.25rem;
  }
}

.supporters h2 {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 2.5rem;
  letter-spacing: -0.025em;
  text-align: center;
}

@media (min-width: 768px) {
  .supporters h2 {
    font-size: 4.5rem;
  }
}

/* Supporter Tabs */
.supporter-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 4rem;
}

@media (max-width: 600px) {
  .supporter-tabs {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
  }

  .supporter-tab {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1rem;
  }
}

.supporter-tab {
  padding: 0.5rem 1.5rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.3s;
  background: hsl(var(--muted) / 0.3);
  color: hsl(var(--muted-foreground));
  border: none;
  cursor: pointer;
}

.supporter-tab:hover {
  background: hsl(var(--muted) / 0.5);
  color: hsl(var(--foreground));
}

.supporter-tab.active {
  background: hsl(var(--foreground));
  color: hsl(var(--background));
}

/* Working Group Info */
.working-group-info {
  margin-bottom: 4rem;
  padding-top: 2rem;
  border-bottom: 1px solid hsl(var(--border) / 0.5);
  padding-bottom: 4rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  animation: fadeInSlide 0.5s ease-out;
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.working-group-info h3 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.working-group-info p {
  color: hsl(var(--muted-foreground));
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.working-group-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.wg-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.5rem;
  border-radius: 9999px;
  font-weight: 500;
  transition: all 0.2s;
}

.wg-link.outline {
  border: 1px solid hsl(var(--border));
  background: hsl(var(--background));
}

.wg-link.outline:hover {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

.wg-link.filled {
  background: hsl(var(--foreground));
  color: hsl(var(--background));
}

.wg-link.filled:hover {
  opacity: 0.9;
}

/* Supporters Grid */
.supporters-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1.5rem 2rem;
  max-width: 56rem;
  margin: 0 auto;
  min-height: 150px;
  animation: fadeIn 0.3s ease-out;
}

.supporters-grid.working-group {
  display: grid;
  grid-template-columns: repeat(3, auto);
  justify-content: center;
}

/* Center an orphan logo on the last row (when item count is 3n + 1). */
.supporters-grid.working-group .supporter-logo:last-child:nth-child(3n + 1) {
  grid-column: 2;
}

/* Respect reduced-motion and avoid CPU/GPU-heavy transitions/animations. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

.supporter-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 7rem;
  height: 5rem;
  padding: 1rem;
  border-radius: 0.75rem;
  transition: all 0.3s;
  filter: grayscale(1);
  opacity: 0.7;
  text-decoration: none;
  cursor: pointer;
}

@media (min-width: 768px) {
  .supporter-logo {
    width: 8rem;
  }
}

.supporter-logo-medium {
  width: 9rem;
}

@media (min-width: 768px) {
  .supporter-logo-medium {
    width: 9.5rem;
  }
}

.supporter-logo:hover {
  filter: grayscale(0);
  opacity: 1;
  background: hsl(var(--muted) / 0.5);
}

.dark .supporter-logo:hover {
  background: transparent;
}

.supporter-logo img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: filter 0.3s, opacity 0.3s;
}

.supporter-logo-lockup {
  gap: 0.45rem;
  padding: 0.85rem;
}

.supporter-logo-lockup img {
  width: auto;
  height: 2rem;
  max-width: 2.1rem;
  max-height: 2.1rem;
  flex: 0 0 auto;
}

.supporter-logo-label {
  color: #18191c;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1;
  transition: color 0.3s;
}

.dark .supporter-logo-label {
  color: #ffffff;
}

/* Invert logos for light mode */
:root:not(.dark) .supporter-logo img {
  filter: invert(1) hue-rotate(180deg);
}

/* Colored logos — skip the invert */
:root:not(.dark) .supporter-logo img[src*="spiderpool"] {
  filter: none;
}

/* F2Pool: manual dark/light swap, bypass global invert filter */
.f2pool-for-dark  { display: block; }
.f2pool-for-light { display: none;  }
:root:not(.dark) .supporter-logo .f2pool-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .f2pool-for-light { display: block; filter: none; }
.dark .supporter-logo .f2pool-for-light             { display: none; }
.dark .supporter-logo .f2pool-for-dark              { filter: none; }

/* Foundry: manual dark/light swap, bypass global invert filter */
.foundry-for-dark  { display: block; }
.foundry-for-light { display: none;  }
:root:not(.dark) .supporter-logo .foundry-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .foundry-for-light { display: block; filter: none; }
.dark .supporter-logo .foundry-for-light            { display: none; }
.dark .supporter-logo .foundry-for-dark             { filter: none; }

/* Block: manual dark/light swap, bypass global invert filter */
.block-for-dark  { display: block; }
.block-for-light { display: none;  }
:root:not(.dark) .supporter-logo .block-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .block-for-light { display: block; filter: none; }
.dark .supporter-logo .block-for-light             { display: none; }
.dark .supporter-logo .block-for-dark              { filter: none; }

/* Antpool: manual dark/light swap, bypass global invert filter */
.antpool-for-dark  { display: block; }
.antpool-for-light { display: none;  }
:root:not(.dark) .supporter-logo .antpool-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .antpool-for-light { display: block; filter: none; }
.dark .supporter-logo .antpool-for-light             { display: none; }
.dark .supporter-logo .antpool-for-dark              { filter: none; }

/* MARA Foundation: manual dark/light swap, bypass global invert filter */
.marafoundation-for-dark  { display: block; }
.marafoundation-for-light { display: none;  }
:root:not(.dark) .supporter-logo .marafoundation-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .marafoundation-for-light { display: block; filter: none; }
.dark .supporter-logo .marafoundation-for-light             { display: none; }
.dark .supporter-logo .marafoundation-for-dark              { filter: none; }

/* mempool.space: manual dark/light swap, bypass global invert filter */
.mempoolspace-for-dark  { display: block; }
.mempoolspace-for-light { display: none;  }
:root:not(.dark) .supporter-logo .mempoolspace-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .mempoolspace-for-light { display: block; filter: none; }
.dark .supporter-logo .mempoolspace-for-light            { display: none; }
.dark .supporter-logo .mempoolspace-for-dark             { filter: none; }

/* Spiral: manual dark/light swap, bypass global invert filter */
.spiral-for-dark  { display: block; }
.spiral-for-light { display: none;  }
:root:not(.dark) .supporter-logo .spiral-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .spiral-for-light { display: block; filter: none; }
.dark .supporter-logo .spiral-for-light            { display: none; }
.dark .supporter-logo .spiral-for-dark             { filter: none; }

/* Spiderpool: manual dark/light swap, bypass global invert filter */
.spiderpool-for-dark  { display: block; }
.spiderpool-for-light { display: none;  }
:root:not(.dark) .supporter-logo .spiderpool-for-dark  { display: none;  filter: none; }
:root:not(.dark) .supporter-logo .spiderpool-for-light { display: block; filter: none; }
.dark .supporter-logo .spiderpool-for-light            { display: none; }
.dark .supporter-logo .spiderpool-for-dark             { filter: none; }

.dark .supporter-logo img {
  filter: none;
}

.supporter-logo .text-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: hsl(var(--foreground));
  transition: color 0.2s;
}

/* Funder section headings (shared between Current / Past) */
.funders-section-heading,
.past-funders-heading {
  width: 100%;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1.5rem;
  text-align: center;
}

.past-funders-section {
  width: 100%;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid hsl(var(--muted) / 0.3);
}

.supporters-grid.past-funders .supporter-logo {
  width: 5rem;
  height: 3.5rem;
  padding: 0.625rem;
}

@media (min-width: 768px) {
  .supporters-grid.past-funders .supporter-logo {
    width: 5.5rem;
    height: 4rem;
  }
}

/* Supporters CTA */
.supporters-cta {
  margin-top: 4rem;
  text-align: center;
}

.supporters-cta a {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  border-bottom: 1px solid hsl(var(--border));
  padding-bottom: 0.125rem;
  transition: all 0.2s;
}

.supporters-cta a:hover {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
}

/* ====================================
   SV2 ADOPTION SECTION
   ==================================== */
.sv2-adoption {
  padding: 7rem 1.5rem;
  background: hsl(var(--background));
  border-top: 1px solid hsl(var(--border));
}

@media (max-width: 768px) {
  .sv2-adoption {
    padding: 4.5rem 1.25rem;
  }
}

/* Header */
.sv2-adoption-header {
  text-align: center;
  margin-bottom: 4rem;
}

.sv2-adoption-header h2 {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: -0.025em;
}

@media (min-width: 768px) {
  .sv2-adoption-header h2 {
    font-size: 4.5rem;
  }
}

.sv2-adoption-header p {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
  max-width: 48rem;
  margin: 0 auto;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .sv2-adoption-header p {
    font-size: 1.25rem;
  }
}

/* Adoption Categories Grid */
.adoption-categories {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 80rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .adoption-categories {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

/* Category Card */
.adoption-category {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1.5rem;
  padding: 2rem;
  transition: border-color 0.3s;
}

.adoption-category:hover {
  border-color: hsl(var(--border) / 0.8);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid hsl(var(--border));
}

.category-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(var(--muted));
  border-radius: 0.75rem;
  color: hsl(var(--foreground));
}

.category-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: hsl(var(--foreground));
}

/* Adopters List */
.adopters-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

a.adopter-item {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.adopter-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem;
  border-radius: 0.75rem;
  transition: background 0.2s;
}

.adopter-item:hover {
  background: hsl(var(--muted) / 0.3);
}

.adopter-logo {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(var(--muted) / 0.5);
  border-radius: 0.5rem;
  overflow: hidden;
}

.adopter-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.375rem;
}

.adopter-logo .ckpool-logo {
  color: #000;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.025em;
}

.dark .adopter-logo .ckpool-logo {
  color: #fff;
}

/* Invert logos for light mode */
:root:not(.dark) .adopter-logo img {
  filter: invert(1) hue-rotate(180deg);
}

.dark .adopter-logo img {
  filter: none;
}

/* Bitaxe & Proto: dark logos — invert in dark mode, cancel global invert in light mode */
.dark .adopter-logo .bitaxe-logo,
.dark .adopter-logo .proto-logo {
  filter: invert(1);
}
:root:not(.dark) .adopter-logo .bitaxe-logo,
:root:not(.dark) .adopter-logo .proto-logo {
  filter: none;
}

/* Full-color adoption logos: cancel global invert in both modes */
.adopter-logo .braiins-hashrate-logo,
.adopter-logo .nexuspool-logo,
.adopter-logo .public-pool-logo,
.adopter-logo .pyblock-pool-logo,
.adopter-logo .pluto-logo,
.adopter-logo .umbrel-logo,
.adopter-logo .sv2-icon {
  filter: none !important;
}

/* NerdAxe: manual dark/light swap, bypass global invert filter */
.nerdaxe-for-dark  { display: block; }
.nerdaxe-for-light { display: none;  }
:root:not(.dark) .adopter-logo .nerdaxe-for-dark  { display: none;  filter: none; }
:root:not(.dark) .adopter-logo .nerdaxe-for-light { display: block; filter: none; }
.dark .adopter-logo .nerdaxe-for-light             { display: none; }


.logo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: hsl(var(--muted-foreground));
}

.adopter-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.adopter-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: hsl(var(--foreground));
}

.adopter-desc {
  font-size: 0.8125rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.5;
}

/* Adoption CTA */
.adoption-cta {
  text-align: center;
  margin-top: 4rem;
  font-size: 0.9375rem;
  color: hsl(var(--muted-foreground));
}

.adoption-cta span {
  margin-right: 0.5rem;
}

.adoption-cta a {
  color: hsl(var(--foreground));
  border-bottom: 1px solid hsl(var(--border));
  padding-bottom: 0.125rem;
  transition: all 0.2s;
}

.adoption-cta a:hover {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
}

/* ====================================
   COMMUNITY SECTION
   ==================================== */
.community {
  position: relative;
  padding: 7rem 1.5rem;
  background: hsl(var(--background));
  border-top: 1px solid hsl(var(--border));
  overflow: hidden;
}

@media (max-width: 768px) {
  .community {
    padding: 4.5rem 1.25rem;
  }

  .community-header {
    margin-bottom: 2.5rem;
  }
}

.community-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: linear-gradient(to top right, rgba(6, 182, 212, 0.05), rgba(37, 99, 235, 0.05), transparent);
  border-radius: 9999px;
  filter: blur(100px);
  pointer-events: none;
}

.community-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
  z-index: 10;
}

.community-header h2 {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 2rem;
  letter-spacing: -0.025em;
}

@media (min-width: 768px) {
  .community-header h2 {
    font-size: 4.5rem;
  }
}

.community-header p {
  font-size: 1.25rem;
  color: hsl(var(--muted-foreground));
  max-width: 48rem;
  margin: 0 auto;
  font-weight: 300;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .community-header p {
    font-size: 1.5rem;
  }
}

/* Community Grid */
.community-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  position: relative;
  z-index: 10;
}

@media (min-width: 768px) {
  .community-grid {
    grid-template-columns: 7fr 5fr;
  }
}

.community-card {
  position: relative;
  overflow: hidden;
  border-radius: 1.5rem;
  padding: 2rem;
  transition: all 0.3s;
  display: block;
}

@media (min-width: 768px) {
  .community-card {
    padding: 3rem;
  }
}

/* GitHub Card (Primary) */
.community-card.github {
  background: rgba(113, 113, 122, 0.05);
  border: 1px solid rgba(113, 113, 122, 0.2);
}

@media (max-width: 600px) {
  .community-card.github .community-card-content {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "icon info"
      "cta cta";
    column-gap: 0.75rem;
    row-gap: 1rem;
    align-items: start;
  }

  .community-card.github .community-icon {
    grid-area: icon;
    margin-bottom: 0;
  }

  .community-card.github .community-info {
    grid-area: info;
  }

  .community-card.github .community-cta {
    grid-area: cta;
    margin-top: 0;
  }

  .community-card.github .community-card-content {
    gap: 1rem;
  }

  .community-card.github .community-info {
    display: block;
  }

  .community-card.github .community-info p {
    margin-top: 0.75rem;
  }
}

.community-card.github:hover {
  background: rgba(113, 113, 122, 0.1);
  border-color: rgba(113, 113, 122, 0.4);
}

.community-card.github:focus {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--foreground)), 0 0 0 4px hsl(var(--background));
}

.community-card-content {
  position: relative;
  z-index: 10;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 240px;
}

.community-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  transition: transform 0.3s;
}

.community-card:hover .community-icon {
  transform: scale(1.1);
}

.github-icon {
  background: hsl(var(--foreground));
  color: hsl(var(--background));
  box-shadow: 0 4px 6px -1px rgba(113, 113, 122, 0.2);
}

.community-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

@media (min-width: 768px) {
  .community-info h3 {
    font-size: 1.875rem;
  }
}

.community-card.github:hover .community-info h3 {
  color: hsl(var(--foreground));
}

.community-info p {
  color: hsl(var(--muted-foreground));
  font-size: 1.125rem;
  max-width: 28rem;
  transition: color 0.2s;
}

.community-card:hover .community-info p {
  color: hsl(var(--foreground) / 0.8);
}

.community-cta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: hsl(var(--foreground));
  margin-top: 2rem;
  transition: transform 0.2s;
}

.community-card:hover .community-cta {
  transform: translateX(4px);
}

.github-decoration {
  position: absolute;
  right: -20px;
  bottom: -20px;
  opacity: 0.05;
  transform: rotate(-10deg);
  transition: opacity 0.2s;
}

.community-card.github:hover .github-decoration {
  opacity: 0.1;
}

/* Secondary Cards (Socials) */
.community-secondary {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.community-card.discord,
.community-card.twitter {
  flex: 1;
  padding: 2rem;
  background: hsl(var(--background));
  border: 1px solid hsl(var(--border));
  overflow: visible;
}

.community-card.discord:hover,
.community-card.twitter:hover {
  border-color: hsl(var(--border) / 0.8);
  background: hsl(var(--muted) / 0.3);
}

.community-card.discord:focus,
.community-card.twitter:focus {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--foreground)), 0 0 0 4px hsl(var(--background));
}

.community-card-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  position: relative;
  z-index: 10;
}

.community-card-row .community-info {
  display: flex;
  gap: 0.75rem;
}

.community-card-row .community-icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0;
  flex-shrink: 0;
}

.discord-icon {
  background: var(--discord-color);
  color: white;
}

.twitter-icon {
  background: black;
  color: white;
}

.dark .twitter-icon {
  background: white;
  color: black;
}

.community-card-row h3 {
  font-size: 1.25rem;
}

.community-card-row p {
  font-size: 0.875rem;
  line-height: 1.5;
}

.arrow-icon {
  color: hsl(var(--muted-foreground));
  transition: color 0.2s;
  flex-shrink: 0;
}

.community-card.discord:hover .arrow-icon,
.community-card.twitter:hover .arrow-icon {
  color: hsl(var(--foreground));
}

/* ====================================
   FOOTER
   ==================================== */
.footer {
  padding: 6rem 1.5rem;
  border-top: 1px solid hsl(var(--border));
  background: hsl(var(--background));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand {
  max-width: 20rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.logo-dot {
  width: 0.75rem;
  height: 0.75rem;
  background: var(--cyan-400);
  border-radius: 9999px;
}

.footer-logo span {
  font-weight: 500;
  letter-spacing: -0.025em;
  font-size: 1.125rem;
}

.footer-brand p {
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
}

.footer-links h4 {
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.footer-links a:hover {
  color: var(--cyan-400);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid hsl(var(--border));
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.copyright {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  font-family: 'JetBrains Mono', monospace;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: hsl(var(--foreground));
}

/* ============================================
   BLOG STYLES
   ============================================ */

/* Blog Hero Section */
.blog-hero {
  padding: 8rem 0 4rem;
  text-align: center;
  background: linear-gradient(to bottom, hsl(var(--primary) / 0.1), transparent);
}

.blog-hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .blog-hero {
    padding: 6rem 0 3rem;
  }

  .blog-hero h1 {
    font-size: 2rem;
  }
}

/* Blog Grid (List Page) */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 4rem 0;
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Blog Card */
.blog-card {
  border: 1px solid hsl(var(--border));
  border-radius: 1.5rem;
  padding: 2rem;
  background: hsl(var(--card));
  transition: all 0.3s;
  text-decoration: none;
  display: block;
}

.blog-card:hover {
  border-color: hsl(var(--primary));
  transform: translateY(-4px);
  box-shadow: 0 10px 30px hsl(var(--primary) / 0.2);
}

.blog-card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: hsl(var(--foreground));
}

.blog-card-description {
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
  line-height: 1.6;
}

.blog-card-meta {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
}

.blog-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.blog-tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid hsl(var(--primary));
  color: hsl(var(--primary));
  border-radius: 9999px;
}

/* Blog Post Page */
.blog-post-container {
  max-width: 56rem;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
}

@media (max-width: 768px) {
  .blog-post-container {
    padding: 6rem 1.5rem 3rem;
  }
}

.blog-post-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid hsl(var(--border));
}

.blog-post-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

@media (max-width: 768px) {
  .blog-post-title {
    font-size: 2.25rem;
  }
}

.blog-post-meta {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
}

.blog-post-header .blog-tags {
  margin-top: 1rem;
}

/* Blog Content Styling */
.blog-content {
  font-size: 1.125rem;
  line-height: 1.8;
  color: hsl(var(--foreground));
  letter-spacing: 0.01em;
}

.blog-content h2 {
  font-size: 2.25rem;
  font-weight: 600;
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  position: relative;
  line-height: 1.3;
  letter-spacing: -0.02em;
  scroll-margin-top: 110px;
}

.blog-content h3 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.4;
  letter-spacing: -0.01em;
  scroll-margin-top: 110px;
}

.blog-content h4 {
  font-size: 1.375rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
  scroll-margin-top: 110px;
}

.heading-anchor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  margin-left: 0.5rem;
  padding: 0.25rem;
  border-radius: 0.375rem;
  color: #22d3ee;
  opacity: 0;
  text-decoration: none !important;
  border-bottom: none !important;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.heading-anchor svg {
  display: block;
}

.blog-content h1:hover .heading-anchor,
.blog-content h2:hover .heading-anchor,
.blog-content h3:hover .heading-anchor,
.blog-content h4:hover .heading-anchor,
.blog-content h5:hover .heading-anchor,
.spec-content h1:hover .heading-anchor,
.spec-content h2:hover .heading-anchor,
.spec-content h3:hover .heading-anchor,
.spec-content h4:hover .heading-anchor,
.spec-content h5:hover .heading-anchor,
.heading-anchor:focus,
.heading-anchor:focus-visible {
  opacity: 1;
}

.heading-anchor:hover {
  color: #06b6d4;
  transform: scale(1.1);
}

.heading-anchor.copied {
  opacity: 1;
  color: #06b6d4;
}

.blog-content p {
  margin-bottom: 1.75rem;
  max-width: 75ch;
}

.blog-content strong {
  font-weight: 600;
  color: hsl(var(--foreground));
}

.blog-content a {
  color: hsl(var(--primary));
  text-decoration: underline;
  text-underline-offset: 4px;
}

.blog-content a:hover {
  text-decoration: none;
}

.blog-content ul,
.blog-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.blog-content li {
  margin-bottom: 0.5rem;
}

.blog-content blockquote {
  border-left: 4px solid hsl(var(--primary));
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: hsl(var(--muted-foreground));
}

.blog-content code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875em;
  background: hsl(var(--muted));
  padding: 0.2em 0.4em;
  border-radius: 0.25rem;
}

.blog-content pre {
  background: hsl(0 0% 12%);
  padding: 1.5rem;
  border-radius: 0.75rem;
  overflow-x: auto;
  margin: 2rem 0;
}

.blog-content pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  color: hsl(0 0% 98%);
}

.blog-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.9375rem;
}

.blog-content th,
.blog-content td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid hsl(var(--border));
}

.blog-content th {
  font-weight: 600;
  background: hsl(var(--muted));
}

.blog-content tr:hover {
  background: hsl(var(--muted) / 0.5);
}

.blog-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  margin: 2rem 0;
  display: block;
}

.blog-back-link {
  display: inline-block;
  margin-top: 3rem;
  padding: 0.75rem 1.5rem;
  background: hsl(var(--muted));
  color: hsl(var(--foreground));
  text-decoration: none;
  border-radius: 0.5rem;
  transition: all 0.3s;
}

.blog-back-link:hover {
  background: hsl(var(--primary));
  color: white;
}

/* Active nav link on blog pages */
.navbar-links a.active {
  color: hsl(var(--primary));
}

/* Image Lightbox Modal */
.lightbox-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: zoom-out;
}

.lightbox-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
}

.lightbox-content {
  position: relative;
  max-width: 95%;
  max-height: 95vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 95vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  cursor: default;
}

.lightbox-close {
  appearance: none;
  -webkit-appearance: none;
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 10001;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.1);
}

.lightbox-close:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.lightbox-close::before,
.lightbox-close::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 2px;
  background: white;
}

.lightbox-close::before {
  transform: rotate(45deg);
}

.lightbox-close::after {
  transform: rotate(-45deg);
}

.lightbox-caption {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: white;
  background: rgba(0, 0, 0, 0.7);
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 0.9rem;
  max-width: 80%;
  text-align: center;
}

/* Make blog post images clickable with cursor feedback */
.blog-content img {
  cursor: zoom-in;
  transition: opacity 0.2s ease;
}

.blog-content img:hover {
  opacity: 0.9;
}

/* ===== SPECIFICATION LAYOUT ===== */

.spec-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - var(--header-offset));
  padding-top: var(--header-offset);
  gap: 3rem;
}

/* Sidebar */
.spec-sidebar {
  position: sticky;
  top: calc(var(--header-offset) + 1.25rem);
  height: calc(100vh - var(--header-offset) - 2.5rem);
  overflow-y: auto;
  padding: 2rem 1.5rem;
  border-right: 1px solid hsl(var(--border));
}

.spec-sidebar h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: hsl(var(--foreground));
}

.spec-search {
  margin-bottom: 1.5rem;
}

.spec-search-input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.spec-search-input::placeholder {
  color: hsl(var(--muted-foreground));
}

.spec-search-input:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.15);
}

.spec-nav a {
  display: block;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.25rem;
  color: hsl(var(--muted-foreground));
  border-radius: 0.375rem;
  transition: all 0.2s;
  font-size: 0.9rem;
  text-decoration: none;
}

.spec-nav a:hover {
  background: hsl(var(--muted));
  color: hsl(var(--foreground));
}

.spec-nav a.active {
  background: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
  font-weight: 500;
}

/* Sidebar navigation styles (legacy-inspired) */
.spec-nav-item {
  margin-bottom: 1.5rem;
}

.spec-page-link {
  display: block;
  padding: 0.5rem 0;
  color: hsl(var(--muted-foreground));
  transition: all 0.2s;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.spec-page-link:hover {
  color: hsl(var(--primary));
  border-bottom-color: hsl(var(--primary));
}

.spec-page-link.active {
  color: hsl(var(--primary));
  font-weight: 600;
}

/* ToC container for active page */
.spec-toc-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-left: 0;
}

.spec-toc-link {
  display: block;
  color: hsl(var(--muted-foreground));
  transition: all 0.2s;
  font-size: 0.875rem;
  text-decoration: none;
  line-height: 1.4;
  padding: 0.25rem 0;
}

.spec-toc-link:hover {
  color: hsl(var(--primary));
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Indentation for different heading levels (like legacy: h2=pl-3, h3=pl-6, h4=pl-8) */
.spec-toc-level-2 {
  padding-left: 0.75rem;
  font-weight: 500;
}

.spec-toc-level-3 {
  padding-left: 1.5rem;
  font-size: 0.8125rem;
}

.spec-toc-level-4 {
  padding-left: 2rem;
  font-size: 0.8125rem;
}

/* Main content */
.spec-main {
  --spec-content-max: 75ch;
  width: 100%;
  max-width: 100%;
  padding: 2rem 3rem 4rem 0;
}

.spec-mobile-controls {
  display: none;
  position: static;
  z-index: 25;
  margin-bottom: 1rem;
  padding: 0.9rem;
  border: 1px solid hsl(var(--border));
  border-radius: 0.75rem;
  background: hsl(var(--background));
  gap: 0.45rem;
}

.spec-mobile-label {
  display: block;
  margin-bottom: 0.1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: hsl(var(--muted-foreground));
}

.spec-mobile-search-input,
.spec-page-select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  min-height: 44px;
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font-size: 0.95rem;
}

.spec-mobile-search-input::placeholder {
  color: hsl(var(--muted-foreground));
}

.spec-mobile-search-input:focus,
.spec-page-select:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.15);
}

.spec-page-toolbar {
  display: flex;
  width: 100%;
  max-width: var(--spec-content-max);
  justify-content: flex-end;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.spec-toolbar-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color 0.2s, border-color 0.2s;
}

.spec-toolbar-link:hover {
  background: hsl(var(--muted));
  border-color: hsl(var(--border));
}

.spec-search-empty {
  padding: 0.5rem 0.75rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.875rem;
}

.spec-pagination {
  display: grid;
  width: 100%;
  max-width: var(--spec-content-max);
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid hsl(var(--border));
}

.spec-page-jump {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid hsl(var(--border));
  border-radius: 0.6rem;
  background: hsl(var(--card));
  text-decoration: none;
}

.spec-page-jump-next {
  text-align: right;
}

.spec-page-jump-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: hsl(var(--muted-foreground));
}

.spec-page-jump-title {
  color: hsl(var(--foreground));
  font-size: 0.94rem;
  font-weight: 500;
}

.spec-page-jump:hover {
  border-color: hsl(var(--primary) / 0.4);
}

.spec-page-jump-disabled {
  visibility: hidden;
}

.spec-content {
  width: 100%;
  max-width: var(--spec-content-max);
  font-size: 1.125rem;
  line-height: 1.8;
  color: hsl(var(--foreground));
}

.spec-content :is(h1, h2, h3, h4, h5) {
  scroll-margin-top: calc(var(--header-offset) + 0.75rem);
}

/* Typography (mirror blog-content styles) */
.spec-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: hsl(var(--foreground));
}

.spec-content h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
}

.spec-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: hsl(var(--foreground));
}

.spec-content h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: hsl(var(--foreground));
}

.spec-content h5 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
  color: hsl(var(--foreground));
}

.spec-content p {
  margin-bottom: 1.5rem;
}

.spec-content code {
  font-family: 'JetBrains Mono', monospace;
  background: hsl(var(--muted));
  padding: 0.2em 0.4em;
  border-radius: 0.25rem;
  font-size: 0.9em;
}

.spec-content pre {
  background: hsl(0 0% 12%);
  padding: 1.5rem;
  border-radius: 0.75rem;
  overflow-x: auto;
  margin: 2rem 0;
}

.spec-content pre code {
  background: none;
  padding: 0;
  color: hsl(0 0% 95%);
}

.spec-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  margin: 2rem 0;
  cursor: zoom-in;
}

.spec-content img:hover {
  opacity: 0.9;
}

.spec-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.spec-content th,
.spec-content td {
  padding: 0.75rem 1rem;
  border: 1px solid hsl(var(--border));
  text-align: left;
  vertical-align: top;
}

.spec-content th {
  background: hsl(var(--muted));
  font-weight: 600;
  color: hsl(var(--foreground));
  position: sticky;
  top: 0;
  z-index: 1;
}

.spec-content tbody tr:hover {
  background: hsl(var(--muted) / 0.3);
}

.spec-content td code {
  font-size: 0.85em;
}

.spec-content ul,
.spec-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.spec-content li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.spec-content li > ul,
.spec-content li > ol {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Nested list indentation */
.spec-content ul ul,
.spec-content ol ul,
.spec-content ul ol,
.spec-content ol ol {
  padding-left: 1.5rem;
}

/* Different markers for nested lists */
.spec-content ul {
  list-style-type: disc;
}

.spec-content ul ul {
  list-style-type: circle;
}

.spec-content ul ul ul {
  list-style-type: square;
}

.spec-content blockquote {
  border-left: 4px solid hsl(var(--primary));
  padding-left: 1.5rem;
  margin: 2rem 0;
  color: hsl(var(--muted-foreground));
  font-style: italic;
}

.spec-content strong {
  font-weight: 600;
  color: hsl(var(--foreground));
}

.spec-content em {
  font-style: italic;
}

.spec-content a {
  color: hsl(var(--primary));
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.spec-content a:hover {
  border-bottom-color: hsl(var(--primary));
}

/* Footnote reference superscripts */
.spec-content sup {
  font-size: 0.75em;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
  top: -0.4em;
}

.spec-content sup a {
  color: hsl(var(--primary));
  font-weight: 600;
  border-bottom: none;
  padding: 0 0.1em;
}

.spec-content sup a:hover {
  text-decoration: underline;
  border-bottom: none;
}

/* Mobile responsive */
@media (max-width: 1024px) {
  .spec-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .spec-sidebar {
    display: none;
  }

  .spec-main {
    padding: 2rem 1.5rem;
    max-width: 100%;
  }

  .spec-mobile-controls {
    display: flex;
    flex-direction: column;
  }

  .spec-page-toolbar {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .spec-content {
    font-size: 1rem;
  }

  .spec-content h1 {
    font-size: 2rem;
  }

  .spec-content h2 {
    font-size: 1.75rem;
  }

  .spec-content h3 {
    font-size: 1.375rem;
  }

  .spec-content table {
    font-size: 0.875rem;
  }

  .spec-pagination {
    grid-template-columns: 1fr;
  }

  .spec-page-jump-next {
    text-align: left;
  }
}

/* ====================================
   RTL SUPPORT (ARABIC)
   ==================================== */
html[dir="rtl"] body {
  direction: rtl;
}

html[lang="ar"] body,
html[dir="rtl"] body {
  font-family: 'Noto Sans Arabic', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

html[dir="rtl"] .navbar-container {
  flex-direction: row-reverse;
}

@media (min-width: 1200px) {
  html[dir="rtl"] .navbar-actions {
    margin-left: 0;
    margin-right: clamp(0.75rem, 1.6vw, 1.5rem);
  }
}

html[dir="rtl"] .lang-dropdown {
  right: auto;
  left: 0;
}

html[dir="rtl"] .lang-dropdown a,
html[dir="rtl"] .mobile-menu-nav a {
  text-align: right;
}

html[dir="rtl"] .feature-text,
html[dir="rtl"] .modularity-text,
html[dir="rtl"] .adopter-info,
html[dir="rtl"] .community-info,
html[dir="rtl"] .community-card-row {
  text-align: right;
}

html[dir="rtl"] .community-card-row {
  flex-direction: row-reverse;
}

html[dir="rtl"] .community-card-row .community-info {
  flex-direction: row-reverse;
}

html[dir="rtl"] .community-card:hover .community-cta {
  transform: translateX(-4px);
}

@media (max-width: 600px) {
  html[dir="rtl"] .community-card.github .community-card-content {
    grid-template-areas:
      "info icon"
      "cta cta";
  }
}