:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #eef2f7;
  --text: #111827;
  --muted: #667085;
  --line: #d9e0ea;
  --primary: #315eea;
  --primary-2: #1d9a70;
  --ink: #0b1020;
  --shadow: 0 24px 70px rgba(15, 23, 42, .14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 14px clamp(20px, 4vw, 56px);
  background: rgba(244, 247, 251, .88);
  border-bottom: 1px solid rgba(217, 224, 234, .8);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
}

.brand img {
  border-radius: 10px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav a,
.nav-toggle {
  border-radius: 8px;
}

.site-nav a {
  padding: 10px 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--surface);
}

.site-nav .download-link {
  color: #ffffff;
  background: var(--ink);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 38px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 2px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(460px, 1.1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(52px, 7vw, 92px) clamp(20px, 4vw, 56px) 48px;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: .95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.04;
}

h3 {
  margin-bottom: 8px;
  font-size: 17px;
}

.lead {
  max-width: 590px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  color: #ffffff;
  background: var(--primary);
}

.button.secondary {
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
}

.note {
  color: var(--muted);
  font-size: 13px;
}

.note a,
.download-panel p a {
  color: inherit;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: rgba(102, 112, 133, .45);
  text-underline-offset: 3px;
}

.note a:hover,
.download-panel p a:hover {
  color: var(--primary);
  text-decoration-color: currentColor;
}

.app-preview {
  min-width: 0;
  overflow: hidden;
  background: #101827;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.preview-topbar {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  align-items: center;
  height: 48px;
  padding: 0 16px;
  color: #dfe7f6;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.preview-topbar span {
  width: 42px;
  height: 10px;
  border-radius: 8px;
  background: linear-gradient(90deg, #ff6b6b 0 10px, #ffd166 10px 24px, #2dd4bf 24px 42px);
}

.preview-body {
  display: grid;
  grid-template-columns: minmax(230px, .9fr) minmax(280px, 1.1fr);
  gap: 14px;
  padding: 14px;
}

.cue-list,
.preview-panel {
  background: #172033;
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 8px;
}

.cue-list {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 10px;
}

.cue {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 10px;
  padding: 10px;
  color: #dbe5f6;
  background: #202a3f;
  border: 1px solid transparent;
  border-radius: 8px;
}

.cue.active {
  background: #243565;
  border-color: #5b7cfa;
}

.cue.muted {
  color: #aab7ca;
}

.cue b {
  grid-row: span 2;
  color: #95a3b8;
  font-size: 13px;
}

.cue code {
  color: #92d2b8;
  font-size: 12px;
}

.preview-panel {
  padding: 12px;
}

.video-frame {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  background: #060912;
  border-radius: 8px;
}

.video-frame img {
  width: min(110px, 34%);
  opacity: .9;
}

.timeline {
  position: relative;
  height: 14px;
  margin: 18px 4px 8px;
  background: #334057;
  border-radius: 999px;
}

.timeline .range {
  position: absolute;
  left: 18%;
  right: 22%;
  top: 0;
  bottom: 0;
  background: #4f7cff;
  border-radius: inherit;
}

.timeline .handle {
  position: absolute;
  top: -8px;
  width: 12px;
  height: 30px;
  background: #ffffff;
  border: 3px solid #4f7cff;
  border-radius: 5px;
}

.timeline .left {
  left: calc(18% - 6px);
}

.timeline .right {
  right: calc(22% - 6px);
}

.time-row {
  display: flex;
  justify-content: space-between;
  color: #aab7ca;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.section {
  padding: 72px clamp(20px, 4vw, 56px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.steps,
.feature-grid,
.export-grid,
.install-grid {
  display: grid;
  gap: 14px;
}

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.steps article,
.feature-grid article,
.export-grid article,
.install-grid article,
.dependency-note {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps span {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: 18px;
  color: #ffffff;
  background: var(--primary);
  border-radius: 8px;
  font-weight: 800;
}

.steps p,
.feature-grid p,
.export-grid p,
.install-grid p,
.dependency-note p,
.split-section p,
.download-panel p {
  color: var(--muted);
  line-height: 1.6;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(260px, .8fr) minmax(420px, 1.2fr);
  gap: clamp(24px, 5vw, 60px);
  align-items: start;
  background: var(--surface);
}

.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.export-section {
  background: #eaf0f8;
}

.export-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.install-section {
  background: var(--surface);
}

.install-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.dependency-note {
  margin-top: 14px;
  background: var(--surface-2);
}

.dependency-note a {
  color: var(--primary);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.download-panel {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  margin: 72px clamp(20px, 4vw, 56px);
  padding: 28px;
  background: var(--ink);
  color: #ffffff;
  border-radius: 8px;
}

.download-panel p {
  margin-bottom: 0;
  color: #bac6d8;
}

.download-panel .eyebrow {
  color: #8ec5ff;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.download-actions .button {
  min-width: 116px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  justify-content: space-between;
  align-items: center;
  padding: 28px clamp(20px, 4vw, 56px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer span:last-child {
  text-align: right;
}

.heart {
  color: #e11d48;
  font-size: 16px;
  line-height: 1;
  vertical-align: -1px;
}

.guide-page .guide-hero {
  grid-template-columns: minmax(0, .9fr) minmax(380px, 1.1fr);
}

.guide-hero-visual {
  position: relative;
  min-width: 0;
}

.guide-window {
  overflow: hidden;
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.guide-windowbar {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 50px;
  padding: 0 16px;
  color: #dfe7f6;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.guide-windowbar span {
  width: 42px;
  height: 10px;
  border-radius: 8px;
  background: linear-gradient(90deg, #fb7185 0 10px, #fbbf24 10px 24px, #34d399 24px 42px);
}

.guide-windowbar em {
  color: #93a4c4;
  font-style: normal;
  font-size: 13px;
}

.guide-windowbody {
  display: grid;
  grid-template-columns: minmax(180px, .82fr) minmax(240px, 1.1fr) minmax(160px, .56fr);
  gap: 12px;
  padding: 12px;
}

.guide-sidebar,
.guide-inspector,
.guide-canvas {
  min-width: 0;
  background: #162033;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 8px;
}

.guide-sidebar,
.guide-inspector {
  padding: 12px;
}

.guide-sidebar-title {
  margin-bottom: 10px;
  color: #9fb2d3;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.guide-row {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 4px 10px;
  padding: 10px;
  color: #dbe5f6;
  background: #202b40;
  border: 1px solid transparent;
  border-radius: 8px;
}

.guide-row + .guide-row {
  margin-top: 8px;
}

.guide-row.active {
  background: #243565;
  border-color: #5b7cfa;
}

.guide-row.muted {
  color: #aab7ca;
}

.guide-row b {
  grid-row: span 2;
  color: #95a3b8;
  font-size: 13px;
}

.guide-row em {
  color: #95c8eb;
  font-style: normal;
  font-size: 12px;
}

.guide-canvas {
  padding: 12px;
}

.guide-preview-screen {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  background: #050811;
  border-radius: 8px;
}

.guide-preview-screen img {
  width: min(120px, 34%);
  opacity: .9;
}

.guide-callout {
  position: absolute;
  max-width: 180px;
  padding: 8px 10px;
  color: #e5edff;
  font-size: 12px;
  line-height: 1.4;
  background: rgba(15, 23, 42, .88);
  border: 1px solid rgba(139, 165, 255, .35);
  border-radius: 8px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, .18);
}

.guide-callout-top {
  top: 12px;
  left: 12px;
}

.guide-timeline,
.guide-trim-track {
  position: relative;
  height: 14px;
  margin: 18px 4px 8px;
  background: #34415b;
  border-radius: 999px;
}

.guide-range,
.guide-delay-fill,
.guide-active-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: inherit;
}

.guide-range,
.guide-active-fill {
  left: 18%;
  right: 22%;
  background: #4f7cff;
}

.guide-delay-fill {
  left: 0;
  width: 18%;
  background: #2f6f68;
}

.guide-handle,
.guide-start-handle,
.guide-end-handle {
  position: absolute;
  top: -8px;
  width: 12px;
  height: 30px;
  background: #ffffff;
  border: 3px solid #4f7cff;
  border-radius: 5px;
}

.guide-handle.left,
.guide-start-handle {
  left: calc(18% - 6px);
}

.guide-handle.right,
.guide-end-handle {
  right: calc(22% - 6px);
}

.guide-timeline-labels,
.guide-trim-labels {
  display: flex;
  justify-content: space-between;
  color: #aab7ca;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.guide-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-bottom: 8px;
  padding: 0 12px;
  color: #dbe5f6;
  background: #202a3f;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 8px;
}

.guide-mini-note {
  margin-top: 8px;
  color: #aab7ca;
  font-size: 13px;
  line-height: 1.5;
}

.guide-metadata-panel {
  display: grid;
  gap: 14px;
}

.guide-metadata-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.guide-metadata-card {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-metadata-card.compact {
  padding: 18px 20px;
}

.guide-metadata-title {
  margin-bottom: 8px;
  color: #6b7f95;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.guide-metadata-value {
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
}

.guide-metadata-note {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.guide-badge {
  position: absolute;
  padding: 8px 10px;
  color: #0b1020;
  background: #cfe2ff;
  border-radius: 8px;
  box-shadow: 0 12px 24px rgba(15, 23, 42, .16);
  font-size: 12px;
  font-weight: 800;
}

.guide-badge.badge-one {
  top: 18px;
  right: -8px;
}

.guide-badge.badge-two {
  bottom: 76px;
  right: 20px;
}

.guide-badge.badge-three {
  bottom: -10px;
  left: 24px;
}

.guide-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.guide-flow article {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-flow span {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: 18px;
  color: #ffffff;
  background: var(--primary);
  border-radius: 8px;
  font-weight: 800;
}

.guide-checklist {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.guide-checklist div {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-checklist strong {
  color: var(--text);
}

.guide-checklist span {
  color: var(--muted);
  line-height: 1.5;
}

.guide-table {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.guide-table-head,
.guide-table-row,
.guide-table-foot {
  display: grid;
  grid-template-columns: 48px 1.1fr 1.4fr .8fr .5fr;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
}

.guide-table-head {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}

.guide-table-row {
  border-bottom: 1px solid var(--line);
}

.guide-table-row.active {
  background: #eef4ff;
}

.guide-table-row.muted {
  color: var(--muted);
}

.guide-table-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.guide-tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  color: var(--muted);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.guide-preview-section {
  background: #eaf0f8;
}

.guide-preview-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(280px, .82fr);
  gap: 14px;
  align-items: start;
}

.guide-playback-grid {
  display: grid;
  grid-template-columns: minmax(280px, .9fr) minmax(320px, 1.1fr);
  gap: 14px;
  align-items: start;
}

.guide-playback-visual {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-playback-track {
  display: grid;
  gap: 10px;
}

.guide-playback-node {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 8px 12px;
  align-items: center;
  padding: 14px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-playback-node strong {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  color: #ffffff;
  background: var(--primary);
  border-radius: 8px;
}

.guide-playback-node.active {
  background: #eef4ff;
  border-color: #b8cdfd;
}

.guide-playback-node span {
  color: var(--muted);
  font-size: 13px;
}

.guide-playback-line {
  width: 2px;
  height: 22px;
  margin: 0 auto;
  background: linear-gradient(180deg, rgba(49, 94, 234, .2), rgba(49, 94, 234, .55));
}

.guide-trim-panel,
.guide-copy-panel article,
.guide-recovery-stack article {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-trim-screen {
  padding: 12px;
  background: #f7f9fc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-trim-video {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  background: #0b1020;
  border-radius: 8px;
}

.guide-trim-video img {
  width: min(110px, 36%);
  opacity: .9;
}

.guide-copy-panel {
  display: grid;
  gap: 14px;
}

.guide-copy-panel h3,
.guide-recovery-stack h3 {
  margin-bottom: 8px;
}

.guide-recovery-stack {
  display: grid;
  gap: 14px;
}

.guide-shortcuts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.guide-shortcuts div {
  display: grid;
  gap: 8px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guide-shortcuts kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 30px;
  padding: 0 10px;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  font-weight: 800;
}

.guide-shortcuts span {
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 980px) {
  .hero,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .steps,
  .export-grid,
  .guide-flow,
  .guide-shortcuts,
  .guide-metadata-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .guide-windowbody,
  .guide-preview-grid,
  .guide-playback-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    min-height: 64px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

  .hero {
    padding-top: 44px;
  }

  .preview-body,
  .steps,
  .feature-grid,
  .export-grid,
  .install-grid,
  .guide-flow,
  .guide-shortcuts,
  .guide-metadata-grid {
    grid-template-columns: 1fr;
  }

  .guide-windowbar {
    grid-template-columns: 48px 1fr;
  }

  .guide-windowbar em {
    display: none;
  }

  .guide-badge {
    max-width: 160px;
  }

  .guide-table-head,
  .guide-table-row {
    grid-template-columns: 42px 1fr;
  }

  .guide-table-head span:nth-child(n+3),
  .guide-table-row span:nth-child(n+3) {
    display: none;
  }

  .download-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .download-actions {
    justify-content: flex-start;
    width: 100%;
  }

  .site-footer,
  .site-footer span:last-child {
    text-align: left;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: 40px;
  }

  .button {
    width: 100%;
  }

  .preview-topbar {
    grid-template-columns: 48px 1fr;
  }
}