/* =========================================================================
   THEME TOKENS
   These CSS variables are the single place to change colors and shapes.
   Values follow Material 3 "dynamic color" dark-theme roles so the palette
   stays consistent and easy to re-tune (e.g. swap the accent hue).
   ========================================================================= */
:root {
  /* -- Core dark surfaces -- */
  --color-background: #141218;
  --color-surface: #1D1B20;
  --color-surface-container: #211F26;
  --color-surface-container-high: #2B2930;
  --color-surface-container-highest: #36343B;
  --color-outline: #938F99;
  --color-outline-variant: #49454F;

  /* -- Dynamic accent roles (edit these to re-theme the whole site) -- */
  --color-primary: #D0BCFF;
  --color-on-primary: #381E72;
  --color-primary-container: #4F378B; /* fallback for browsers without color-mix() support */
  --color-primary-container: color-mix(in srgb, var(--color-primary) 38%, var(--color-surface-container-high));
  --color-secondary: #CCC2DC;
  --color-tertiary: #EFB8C8;
  --color-on-tertiary: #492532;

  --color-on-surface: #E6E0E9;
  --color-on-surface-variant: #CAC4D0;

  /* -- Gradient used for the hero blob / accents -- */
  --gradient-accent: linear-gradient(135deg, var(--color-primary) 0%, var(--color-tertiary) 100%);

  /* -- Shape (Material You loves generous, soft rounding) -- */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 40px;
  --radius-pill: 999px;

  /* -- Elevation (soft, colored shadows rather than plain black) -- */
  --shadow-1: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-2: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(208, 188, 255, 0.15);

  /* -- Typography -- */
  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* -- Motion -- */
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --duration-fast: 200ms;
  --duration-medium: 400ms;
  --duration-slow: 700ms;

  --content-max-width: 1120px;
}

/* Respect users who prefer reduced motion */
@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;
  }
}

/* =========================================================================
   RESET & BASE
   ========================================================================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-background);
  color: var(--color-on-surface);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

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

button {
  font: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

section {
  padding-block: 96px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subheading {
  color: var(--color-on-surface-variant);
  font-size: 16px;
  max-width: 560px;
  margin-bottom: 48px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-tertiary);
  margin-bottom: 16px;
}

/* =========================================================================
   SCROLL REVEAL (JS toggles .in-view on elements with .reveal)
   ========================================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-standard),
              transform var(--duration-slow) var(--ease-standard);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children that share this attribute for a cascading feel */
.reveal-stagger > * {
  transition-delay: calc(var(--stagger-index, 0) * 70ms);
}

/* =========================================================================
   HEADER / NAV
   ========================================================================= */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding-block: 16px;
  backdrop-filter: blur(16px);
  background: rgba(20, 18, 24, 0.6);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard);
}

.site-header.scrolled {
  border-bottom-color: var(--color-outline-variant);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
}

.nav-brand img {
  width: 28px;
  height: 28px;
  object-fit: contain; /* keeps a swapped-in logo from stretching if its pixel size/ratio differs */
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--color-on-surface-variant);
}

.nav-links a {
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav-links a:hover {
  color: var(--color-on-surface);
}

.nav-cta {
  display: none;
}

@media (min-width: 720px) {
  .nav-cta {
    display: inline-flex;
  }
}

/* -- Nav brand as a home link, and the "All builds" back link -- */
.nav-brand {
  transition: opacity var(--duration-fast) var(--ease-standard);
}

.nav-brand:hover {
  opacity: 0.85;
}

.nav-back-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-on-surface-variant);
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav-back-link[hidden] {
  display: none;
}

.nav-back-link svg {
  width: 16px;
  height: 16px;
}

.nav-back-link:hover {
  color: var(--color-primary);
}

.nav-links[hidden],
.nav-cta[hidden] {
  display: none;
}

/* =========================================================================
   HUB (all-builds grid)
   ========================================================================= */
#hub-view {
  padding-top: 160px;
}

#hub-view[hidden] {
  display: none;
}

#detail-view[hidden] {
  display: none;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.hub-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: left;
  transition: transform var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}

.hub-card:hover {
  transform: translateY(-4px);
  background: var(--color-surface-container-high);
  border-color: var(--hub-card-accent, var(--color-primary));
}

.hub-card-logo {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--hub-card-accent-container, var(--color-primary-container));
  display: grid;
  place-items: center;
  padding: 10px;
}

.hub-card-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hub-card-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
}

.hub-card-device {
  font-size: 14px;
  color: var(--color-on-surface-variant);
  margin-top: -10px;
}

.hub-card-meta {
  display: flex;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--color-outline-variant);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-outline);
}

/* =========================================================================
   BUTTONS (Material You filled / tonal / outlined)
   ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding-inline: 24px;
  border-radius: var(--radius-pill);
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  transition: transform var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-filled {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-1);
}

.btn-filled:hover {
  box-shadow: var(--shadow-2), var(--shadow-glow);
}

.btn-tonal {
  background: var(--color-surface-container-high);
  color: var(--color-on-surface);
}

.btn-tonal:hover {
  background: var(--color-surface-container-highest);
}

.btn-outlined {
  background: transparent;
  color: var(--color-on-surface);
  border: 1px solid var(--color-outline);
}

.btn-outlined:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
  position: relative;
  padding-top: 160px;
  padding-bottom: 80px;
  display: grid;
  place-items: center;
  text-align: center;
  overflow: hidden;
}

/* Signature element: a soft morphing "Material You" blob behind the logo */
.hero-blob {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(720px, 140vw);
  height: min(720px, 140vw);
  transform: translate(-50%, -55%);
  background: var(--gradient-accent);
  opacity: 0.18;
  filter: blur(60px);
  border-radius: 42% 58% 65% 35% / 45% 40% 60% 55%;
  animation: blob-morph 16s var(--ease-standard) infinite alternate;
  z-index: 0;
  pointer-events: none;
}

@keyframes blob-morph {
  0%   { border-radius: 42% 58% 65% 35% / 45% 40% 60% 55%; }
  33%  { border-radius: 58% 42% 40% 60% / 55% 65% 35% 45%; }
  66%  { border-radius: 65% 35% 55% 45% / 40% 55% 45% 60%; }
  100% { border-radius: 48% 52% 45% 55% / 60% 45% 55% 40%; }
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 720px;
}

/* Logo block: kept isolated so it can be replaced without touching layout */
.hero-logo {
  width: 96px;
  height: 96px;
  object-fit: contain; /* keeps a swapped-in logo from stretching if its pixel size/ratio differs */
  margin-bottom: 28px;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 8vw, 76px);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 20px;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-tagline {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--color-on-surface-variant);
  max-width: 540px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.hero-meta {
  display: flex;
  gap: 24px;
  margin-top: 48px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-on-surface-variant);
  flex-wrap: wrap;
  justify-content: center;
}

.hero-meta span strong {
  color: var(--color-on-surface);
  font-weight: 600;
}

/* =========================================================================
   DEVICE SHOWCASE
   ========================================================================= */
.showcase {
  display: grid;
  gap: 56px;
  align-items: center;
}

@media (min-width: 900px) {
  .showcase {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

.phone-frame-wrap {
  display: flex;
  justify-content: center;
}

/* Pure CSS device frame; swap the <img> inside for a real screenshot */
.phone-frame {
  position: relative;
  width: 260px;
  height: 540px;
  background: #0B0A0D;
  border-radius: 44px;
  padding: 10px;
  box-shadow: var(--shadow-2), 0 0 0 2px var(--color-outline-variant);
  transition: transform var(--duration-medium) var(--ease-standard);
}

.phone-frame:hover {
  transform: perspective(800px) rotateY(-4deg) rotateX(2deg);
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 34px;
  overflow: hidden;
  background: var(--color-surface);
  cursor: pointer;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-zoom-hint {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(11, 10, 13, 0.35);
  color: var(--color-on-surface);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-standard);
}

.phone-zoom-hint svg {
  width: 32px;
  height: 32px;
}

.phone-frame:hover .phone-zoom-hint,
.phone-screen:focus-visible .phone-zoom-hint {
  opacity: 1;
}

/* =========================================================================
   SCREENSHOT LIGHTBOX
   ========================================================================= */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 9, 12, 0.85);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-medium) var(--ease-standard);
}

.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  position: relative;
  width: 100%;
  max-width: min(88vw, 420px);
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.96);
  transition: transform var(--duration-medium) var(--ease-standard);
}

.lightbox.open .lightbox-content {
  transform: scale(1);
}

.lightbox-image-wrap {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-container);
  box-shadow: var(--shadow-2), var(--shadow-glow);
}

.lightbox-image-wrap img {
  width: 100%;
  display: block;
}

.lightbox-caption {
  margin-top: 16px;
  color: var(--color-on-surface-variant);
  font-size: 14px;
  text-align: center;
  min-height: 20px;
}

.lightbox-close,
.lightbox-nav {
  position: fixed;
  border-radius: 50%;
  background: var(--color-surface-container-high);
  color: var(--color-on-surface);
  border: 1px solid var(--color-outline-variant);
  display: grid;
  place-items: center;
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}

.lightbox-close:hover,
.lightbox-nav:hover {
  background: var(--color-primary-container);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.lightbox-nav:hover {
  transform: translateY(-50%) translateX(0) scale(1.05);
}

.lightbox-close {
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
}

.lightbox-close svg {
  width: 18px;
  height: 18px;
}

.lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
}

.lightbox-nav svg {
  width: 20px;
  height: 20px;
}

.lightbox-prev {
  left: 24px;
}

.lightbox-next {
  right: 24px;
}

.lightbox-counter {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-on-surface-variant);
}

@media (max-width: 719px) {
  .lightbox-nav {
    width: 40px;
    height: 40px;
  }

  .lightbox-prev {
    left: 12px;
  }

  .lightbox-next {
    right: 12px;
  }

  .lightbox-close {
    top: 16px;
    right: 16px;
  }
}

.phone-notch {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 8px;
  background: #0B0A0D;
  border-radius: var(--radius-pill);
  z-index: 2;
}

.showcase-copy .section-heading,
.showcase-copy .section-subheading {
  margin-bottom: 16px;
}

.showcase-copy .section-subheading {
  margin-bottom: 32px;
}

/* =========================================================================
   SPECS GRID
   ========================================================================= */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.spec-card {
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: transform var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}

.spec-card:hover {
  transform: translateY(-4px);
  background: var(--color-surface-container-high);
  border-color: var(--color-primary);
}

.spec-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-container);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

.spec-icon svg {
  width: 22px;
  height: 22px;
}

.spec-label {
  font-size: 13px;
  color: var(--color-on-surface-variant);
  margin-bottom: 4px;
}

.spec-value {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
}

/* =========================================================================
   LATEST RELEASE
   ========================================================================= */
.release-panel {
  position: relative;
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-xl);
  padding: 48px;
  overflow: hidden;
}

.release-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-accent);
  opacity: 0.06;
  pointer-events: none;
}

.release-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 20px;
  position: relative;
}

.release-version {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
}

.release-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-container);
  color: var(--color-primary);
}

.release-date {
  color: var(--color-on-surface-variant);
  font-size: 14px;
  font-family: var(--font-mono);
}

.release-summary {
  position: relative;
  max-width: 680px;
  color: var(--color-on-surface-variant);
  margin-bottom: 28px;
}

.release-meta {
  position: relative;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-outline);
  margin-bottom: 28px;
}

.release-meta:empty {
  display: none;
}

.release-actions {
  position: relative;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* =========================================================================
   CHANGELOG TIMELINE
   ========================================================================= */
.changelog-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.changelog-item {
  position: relative;
  padding-left: 40px;
  padding-bottom: 40px;
  border-left: 2px solid var(--color-outline-variant);
}

.changelog-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.changelog-dot {
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-background), 0 0 0 5px var(--color-outline-variant);
}

.changelog-item:first-child .changelog-dot {
  background: var(--color-tertiary);
}

.changelog-meta {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.changelog-version {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
}

.changelog-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-on-surface-variant);
}

.changelog-changes {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--color-on-surface-variant);
  font-size: 15px;
}

.changelog-changes li {
  position: relative;
  padding-left: 18px;
}

.changelog-changes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-secondary);
}

/* =========================================================================
   INSTALL STEPS
   ========================================================================= */
.install-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  counter-reset: step;
}

.install-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  transition: border-color var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard);
}

.install-step:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-container-high);
}

.install-step-number {
  counter-increment: step;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-container);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  display: grid;
  place-items: center;
}

.install-step-number::before {
  content: counter(step);
}

.install-step-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  margin-bottom: 6px;
}

.install-step-desc {
  color: var(--color-on-surface-variant);
  font-size: 15px;
}

/* -- Callouts (warning / important), GitHub-alert inspired -- */
.install-callout {
  display: flex;
  gap: 14px;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-on-surface-variant);
  margin-bottom: 20px;
}

.install-callout-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
}

.install-callout-icon svg {
  width: 100%;
  height: 100%;
}

.install-callout-warning {
  background: rgba(239, 184, 200, 0.08);
  border: 1px solid var(--color-tertiary);
}

.install-callout-warning .install-callout-icon {
  color: var(--color-tertiary);
}

.install-callout-important {
  background: rgba(208, 188, 255, 0.08);
  border: 1px solid var(--color-primary);
}

.install-callout-important .install-callout-icon {
  color: var(--color-primary);
}

.install-callout-tip {
  background: rgba(204, 194, 220, 0.08);
  border: 1px solid var(--color-secondary);
}

.install-callout-tip .install-callout-icon {
  color: var(--color-secondary);
}

/* -- Requirements & prerequisites -- */
.install-requirements {
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  margin-bottom: 20px;
}

.install-requirements-title,
.install-prereqs-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 14px;
}

.install-requirements-list,
.install-prereqs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.install-prereqs-list {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--color-outline-variant);
}

.install-requirements-list li,
.install-prereqs-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-on-surface-variant);
}

.install-requirements-list li::before,
.install-prereqs-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-secondary);
}

.install-requirements-list a {
  color: var(--color-primary);
  font-weight: 600;
  transition: color var(--duration-fast) var(--ease-standard);
}

.install-requirements-list a:hover {
  color: var(--color-tertiary);
}

.requirement-optional-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-outline);
  margin-left: 6px;
}

/* -- Step inner content -- */
.install-step {
  align-items: start;
}

.install-step-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0; /* allow code blocks to shrink/scroll instead of overflowing */
}

.step-list {
  list-style: decimal;
  padding-left: 20px;
  color: var(--color-on-surface-variant);
  font-size: 15px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.step-note {
  font-size: 14px;
  color: var(--color-on-surface-variant);
  padding-left: 16px;
  border-left: 2px solid var(--color-outline-variant);
}

.step-important {
  font-size: 14px;
  color: var(--color-primary);
  background: rgba(208, 188, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}

/* -- Code blocks -- */
.code-block {
  position: relative;
  background: #0B0A0D;
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-block pre {
  margin: 0;
  padding: 18px 52px 18px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-on-surface);
}

.code-copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-container-high);
  color: var(--color-on-surface-variant);
  border: 1px solid var(--color-outline-variant);
  display: grid;
  place-items: center;
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}

.code-copy-btn:hover {
  background: var(--color-primary-container);
  color: var(--color-primary);
}

.code-copy-btn svg {
  width: 16px;
  height: 16px;
}

.code-copy-btn.copied {
  color: var(--color-tertiary);
}

.step-alternative {
  border-left: 2px solid var(--color-outline-variant);
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.step-alternative-note {
  font-size: 13px;
  color: var(--color-outline);
  font-style: italic;
}

/* =========================================================================
   LINKS SECTION
   ========================================================================= */
.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: transform var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}

.link-card:hover {
  transform: translateY(-4px);
  background: var(--color-surface-container-high);
  border-color: var(--color-primary);
}

.link-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: var(--color-primary-container);
  color: var(--color-primary);
  display: grid;
  place-items: center;
}

.link-icon svg {
  width: 24px;
  height: 24px;
}

.link-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 2px;
}

.link-desc {
  font-size: 13px;
  color: var(--color-on-surface-variant);
}

/* =========================================================================
   FOOTER
   ========================================================================= */
.site-footer {
  padding-block: 48px;
  border-top: 1px solid var(--color-outline-variant);
  text-align: center;
  color: var(--color-on-surface-variant);
  font-size: 13px;
}

.site-footer a:hover {
  color: var(--color-primary);
}

.footer-credit {
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-outline);
}

.footer-credit a {
  color: var(--color-on-surface-variant);
  font-weight: 600;
  transition: color var(--duration-fast) var(--ease-standard);
}

.footer-credit a:hover {
  color: var(--color-primary);
}

/* -- "Support this project" link + donate modal -- */
.footer-donate-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  background: none;
  border: none;
  color: var(--color-outline);
  font-size: 12px;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) var(--ease-standard);
}

.footer-donate-link[hidden] {
  display: none;
}

.footer-donate-link:hover {
  color: var(--color-primary);
}

.donate-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(10, 9, 12, 0.85);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-medium) var(--ease-standard);
}

.donate-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.donate-modal-content {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-2), var(--shadow-glow);
  transform: scale(0.96);
  transition: transform var(--duration-medium) var(--ease-standard);
}

.donate-modal.open .donate-modal-content {
  transform: scale(1);
}

.donate-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-surface-container-high);
  color: var(--color-on-surface);
  border: 1px solid var(--color-outline-variant);
  display: grid;
  place-items: center;
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}

.donate-modal-close:hover {
  background: var(--color-primary-container);
  color: var(--color-primary);
}

.donate-modal-close svg {
  width: 16px;
  height: 16px;
}

.donate-modal-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  margin-bottom: 10px;
  padding-right: 32px;
}

.donate-modal-note {
  font-size: 14px;
  color: var(--color-on-surface-variant);
  margin-bottom: 24px;
}

.donate-wallets {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.donate-wallet-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-on-surface-variant);
  margin-bottom: 8px;
}

.donate-wallet-label svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

.donate-wallet .code-block pre {
  font-size: 12px;
  padding-right: 52px;
  word-break: break-all;
  white-space: pre-wrap;
}

/* -- Image fade-in (smooths logo/screenshot pop-in while they load) -- */
img.fade-in {
  opacity: 0;
  transition: opacity var(--duration-medium) var(--ease-standard);
}

img.fade-in.img-loaded {
  opacity: 1;
}

/* =========================================================================
   RESPONSIVE TWEAKS
   ========================================================================= */
@media (max-width: 719px) {
  .nav-links {
    display: none;
  }

  section {
    padding-block: 64px;
  }

  .release-panel {
    padding: 32px 24px;
  }

  .phone-frame {
    width: 220px;
    height: 460px;
  }
}