/*
 * The site's palette is cide's own: the values below are copied from ui/src/styles/tokens.css
 * (light is the bare :root there too, dark the override), so the page around a screenshot is the
 * same colour as the app inside it. If tokens.css moves, move these.
 */
:root {
  color-scheme: light;
  --bg: #fbfbfc;
  --bg-2: #f2f2f5;
  --panel: #ffffff;
  --border: #d8d8de;
  --border-soft: #e9e9ee;
  --text: #1b1b1f;
  --text-hi: #0a0a0c;
  --dim: #56565f;
  --accent: #dc1f2b;
  --accent-hi: #b3121d;
  --on-accent: #ffffff;
  --grad-from: #ff3b3b;
  --grad-to: #e11d48;
  --grad-warm: #f2903a;
  --glow-a: rgba(255, 59, 59, 0.22);
  --glow-b: rgba(242, 144, 58, 0.18);
  --shadow: 0 1px 2px rgba(10, 10, 12, 0.06), 0 12px 40px -12px rgba(10, 10, 12, 0.22);
  --shadow-lg: 0 2px 4px rgba(10, 10, 12, 0.06), 0 40px 90px -30px rgba(120, 20, 30, 0.35);
  --code-bg: #f6f6f9;
  --font-ui: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --radius: 14px;
  --max: 1200px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --bg: #0c0c0e;
    --bg-2: #111113;
    --panel: #151518;
    --border: #2a2a31;
    --border-soft: #202027;
    --text: #d7d7dd;
    --text-hi: #f2f2f5;
    --dim: #8c8c97;
    --accent: #ff5a5f;
    --accent-hi: #ff8a8d;
    --glow-a: rgba(255, 59, 59, 0.28);
    --glow-b: rgba(225, 29, 72, 0.2);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 40px -12px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.4), 0 40px 100px -30px rgba(255, 59, 59, 0.28);
    --code-bg: #151518;
  }
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0c0c0e;
  --bg-2: #111113;
  --panel: #151518;
  --border: #2a2a31;
  --border-soft: #202027;
  --text: #d7d7dd;
  --text-hi: #f2f2f5;
  --dim: #8c8c97;
  --accent: #ff5a5f;
  --accent-hi: #ff8a8d;
  --glow-a: rgba(255, 59, 59, 0.28);
  --glow-b: rgba(225, 29, 72, 0.2);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 40px -12px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.4), 0 40px 100px -30px rgba(255, 59, 59, 0.28);
  --code-bg: #151518;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hi);
}

button {
  font: inherit;
  color: inherit;
}

h1,
h2,
h3 {
  color: var(--text-hi);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 100;
  background: var(--panel);
  padding: 8px 12px;
  border-radius: 8px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* --- nav ------------------------------------------------------------------------------ */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border-soft);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-hi);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--text-hi);
}

.logo {
  width: 26px;
  height: 26px;
}

.links {
  display: flex;
  gap: 22px;
  font-size: 15px;
}

.links a {
  color: var(--dim);
  font-weight: 500;
}

.links a:hover {
  color: var(--text-hi);
}

.switches {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
}

.lang button {
  border: 0;
  background: transparent;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--dim);
  cursor: pointer;
}

.lang button[aria-pressed='true'] {
  background: linear-gradient(135deg, var(--grad-from), var(--grad-to));
  color: var(--on-accent);
}

.theme {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  cursor: pointer;
}

.theme svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--text-hi);
  stroke-width: 1.8;
  stroke-linecap: round;
}

[data-theme='dark'] .theme .moon,
[data-theme='light'] .theme .sun {
  display: none;
}

/* --- hero ----------------------------------------------------------------------------- */

.hero {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  padding: 88px 24px 40px;
  text-align: center;
}

.glow {
  position: absolute;
  inset: -120px -20vw auto;
  height: 900px;
  z-index: -1;
  background:
    radial-gradient(40% 45% at 30% 30%, var(--glow-a), transparent 70%),
    radial-gradient(40% 45% at 72% 40%, var(--glow-b), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 22px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  color: var(--dim);
  font-size: 13px;
  font-weight: 500;
}

h1 {
  font-size: clamp(40px, 6.4vw, 78px);
  font-weight: 800;
  letter-spacing: -0.035em;
}

h1 span {
  display: block;
}

.grad {
  background: linear-gradient(100deg, var(--grad-from) 0%, var(--grad-to) 55%, var(--grad-warm) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-bottom: 0.08em;
}

.lead {
  max-width: 760px;
  margin: 24px auto 0;
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--dim);
}

.ctas {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.btn.primary {
  color: var(--on-accent);
  background: linear-gradient(135deg, var(--grad-from), var(--grad-to));
  box-shadow: 0 10px 30px -10px rgba(225, 29, 72, 0.7);
}

.btn.primary:hover {
  color: var(--on-accent);
  transform: translateY(-1px);
}

.btn.ghost {
  color: var(--text-hi);
  border: 1px solid var(--border);
  background: var(--panel);
}

.btn.ghost:hover {
  color: var(--text-hi);
  border-color: var(--dim);
}

.hero-shot {
  margin: 64px 0 0;
}

.hero-shot figcaption {
  margin-top: 14px;
  font-size: 14px;
  color: var(--dim);
}

.frame {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  cursor: zoom-in;
  box-shadow: var(--shadow);
}

.frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
}

.hero-shot .frame {
  box-shadow: var(--shadow-lg);
  border-radius: 18px;
}

/* --- pillars -------------------------------------------------------------------------- */

.pillars {
  max-width: var(--max);
  margin: 72px auto 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pillars article {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}

.pillars h3 {
  font-size: 20px;
  margin: 18px 0 10px;
}

.pillars p {
  margin: 0;
  color: var(--dim);
  font-size: 15.5px;
}

.pill-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--grad-from), var(--grad-to));
}

.pill-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: #fff;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- chapters ------------------------------------------------------------------------- */

.chapter {
  max-width: var(--max);
  margin: 0 auto;
  padding: 120px 24px 0;
}

.chapter-head {
  max-width: 720px;
  margin-bottom: 40px;
}

.chapter-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 12px;
}

.chapter-head h2 {
  font-size: clamp(32px, 4.2vw, 50px);
  font-weight: 800;
}

.chapter-head p {
  margin: 14px 0 0;
  font-size: 19px;
  color: var(--dim);
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 8fr);
  gap: 48px;
  align-items: center;
  padding: 44px 0;
  border-top: 1px solid var(--border-soft);
}

.feature:nth-of-type(even) {
  grid-template-columns: minmax(0, 8fr) minmax(0, 5fr);
}

.feature:nth-of-type(even) .feature-text {
  order: 2;
}

.feature h3 {
  font-size: 26px;
  font-weight: 700;
}

.feature-text p {
  margin: 14px 0 0;
  color: var(--dim);
}

.feature ul,
.more ul {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
}

.feature li {
  position: relative;
  padding-left: 26px;
  margin-top: 9px;
  font-size: 15.5px;
}

.feature li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: translateY(-50%) rotate(-45deg);
}

.feature-shot {
  margin: 0;
}

/* --- more, install ------------------------------------------------------------ */

.more,
.install {
  max-width: var(--max);
  margin: 0 auto;
  padding: 120px 24px 0;
}

.more h2,
.install h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
}

.more ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 32px;
  margin-top: 28px;
}

.more li {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  font-size: 15.5px;
}

.install p {
  max-width: 760px;
  color: var(--dim);
}

.code {
  position: relative;
  max-width: 760px;
  margin: 22px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--code-bg);
}

.code pre {
  margin: 0;
  padding: 20px 22px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-hi);
}

.copy {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  font-size: 13px;
  cursor: pointer;
}

.note {
  font-size: 15px;
}

.textlink {
  font-weight: 600;
}

.textlink::after {
  content: ' →';
}

/* The last section on the page, so it keeps some room above the footer. */
.install {
  padding-bottom: 40px;
}

/* The hero's buttons are centred; here they sit under a left-aligned paragraph. */
.install .ctas {
  justify-content: flex-start;
  margin-top: 26px;
}

.source {
  max-width: 760px;
  margin-top: 30px;
}

.source summary {
  width: fit-content;
  font-weight: 600;
  color: var(--text-hi);
  cursor: pointer;
}

.source[open] summary {
  margin-bottom: 14px;
}

.foot {
  max-width: var(--max);
  margin: 80px auto 0;
  padding: 28px 24px 48px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  font-size: 14px;
  color: var(--dim);
}

.foot span:first-child {
  font-weight: 700;
  color: var(--text-hi);
}

/* --- lightbox ------------------------------------------------------------------------- */

.lightbox {
  max-width: 96vw;
  max-height: 94vh;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  overflow: hidden;
}

.lightbox::backdrop {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
}

.lightbox img {
  display: block;
  max-width: 96vw;
  max-height: 94vh;
  width: auto;
  height: auto;
}

.lightbox .close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

/* --- motion --------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  body,
  .btn,
  .reveal {
    transition: none;
  }
}

/* --- narrow --------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .pillars {
    grid-template-columns: 1fr;
  }
  .feature,
  .feature:nth-of-type(even) {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .feature:nth-of-type(even) .feature-text {
    order: 0;
  }
  .more ul {
    grid-template-columns: 1fr;
  }
  .chapter,
  .more,
  .install {
    padding-top: 80px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }
  .nav-inner {
    padding: 10px 16px;
    gap: 14px;
  }
  .links {
    display: none;
  }
  .hero {
    padding: 56px 16px 24px;
  }
  .hero-shot {
    margin-top: 40px;
  }
  .pillars,
  .chapter,
  .more,
  .install {
    padding-left: 16px;
    padding-right: 16px;
  }
  .foot {
    padding-left: 16px;
    padding-right: 16px;
  }
  .feature h3 {
    font-size: 22px;
  }
}