:root {
  --sans: var(--font-primary);
  --mono: var(--font-mono);
  --shadow-block: 8px 8px 0 rgba(31, 27, 22, 0.16);
  --motion: 180ms cubic-bezier(0.32, 0.72, 0, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text-base);
  background:
    linear-gradient(rgba(31, 27, 22, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 27, 22, 0.026) 1px, transparent 1px),
    var(--canvas);
  background-size: 28px 28px;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  content: "";
  opacity: 0.12;
  background:
    radial-gradient(circle at 20% 20%, rgba(31, 27, 22, 0.12) 0 1px, transparent 1px),
    radial-gradient(circle at 80% 70%, rgba(31, 27, 22, 0.08) 0 1px, transparent 1px);
  background-size: 16px 18px, 21px 24px;
  mix-blend-mode: multiply;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button {
  appearance: none;
}

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

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

h1,
h2,
h3 {
  letter-spacing: 0;
  text-wrap: balance;
}

h1 {
  max-width: 13ch;
  margin-bottom: 22px;
  font-size: 56px;
  font-weight: 700;
  line-height: 1.02;
}

h2 {
  max-width: 18ch;
  margin-bottom: 14px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.08;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.18;
}

p {
  text-wrap: pretty;
}

:focus-visible {
  outline: 3px solid var(--ui-focus-ring);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--canvas);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 80;
  transform: translateY(-140%);
  padding: 10px 14px;
  color: var(--cream-100);
  background: var(--ink-900);
  border: var(--border-soft);
}

.skip-link:focus {
  transform: translateY(0);
}

.section-shell,
.lab-shell,
.lab-footer {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

section[id] {
  scroll-margin-top: 92px;
}

.topbar,
.aux-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  min-height: 68px;
  padding: 10px 24px;
  background: rgba(241, 233, 214, 0.94);
  border-bottom: var(--border-soft);
  backdrop-filter: blur(8px);
}

.aux-topbar {
  grid-template-columns: 1fr auto;
}

.brand-signature {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: var(--control-height-md);
  color: var(--ink-900);
  text-decoration: none;
  font-weight: 700;
}

.brand-signature img {
  width: 38px;
  height: 38px;
  padding: 2px;
  background: var(--cream-100);
  border: var(--border-soft);
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 6px;
  min-width: 0;
  overflow-x: auto;
}

.main-nav a,
.format-tabs button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-height-md);
  padding: 0 14px;
  color: var(--ink-900);
  background: var(--cream-200);
  border: var(--border-soft);
  border-radius: var(--radius-control);
  box-shadow: 0 1px 0 rgba(31, 27, 22, 0.14);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--motion), color var(--motion), background-color var(--motion), border-color var(--motion);
}

.format-tabs {
  align-items: center;
}

.main-nav a:hover,
.format-tabs button:hover,
.btn:hover,
.brand-signature:hover {
  transform: translateY(-1px);
}

.main-nav a:active,
.format-tabs button:active,
.btn:active {
  transform: translateY(1px);
}

.main-nav a.is-active,
.format-tabs button.is-active {
  color: var(--cream-100);
  background: var(--ink-900);
  border-color: var(--ink-900);
}

.btn-primary {
  color: var(--cream-100);
  background: var(--ui-action);
  border-color: var(--ink-900);
}

.btn-secondary {
  background: var(--surface);
}

.ai-signature {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.35em;
  min-height: 1.08em;
  padding: 0 0.18em 0.04em;
  color: var(--screen-glow);
  background: var(--crt-screen);
  border: 0.07em solid var(--ink-900);
  border-radius: 0.16em;
  box-shadow: inset 0 0 0.55em var(--crt-shadow);
  font-family: var(--mono);
  font-weight: 800;
  line-height: 1;
  text-shadow: 0 0 18px var(--crt-shadow);
  vertical-align: 0.04em;
}

.ai-action {
  color: var(--ui-action);
}

.ai-prose {
  color: var(--text-base);
  text-shadow: none;
}

.cover .ai-prose,
.close-slide .ai-prose,
.terminal-note .ai-prose,
.stories-stack .ai-prose,
.file-card .ai-prose {
  color: inherit;
}

.text-emphasis {
  color: var(--text-emphasis);
  font-weight: 700;
}

.demo-button {
  display: inline-flex;
  align-items: center;
  min-height: var(--control-height-md);
  width: fit-content;
  padding: 0 14px;
  color: var(--text-base);
  background: var(--cream-100);
  border: var(--border-soft);
  border-radius: var(--radius-control);
  font-weight: 700;
}

.text-emphasis-subtle {
  color: var(--text-base);
  border-bottom: 2px solid var(--ui-action);
}

.eyebrow,
.code-label,
.file-pill {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

.eyebrow {
  padding: 5px 8px;
  background: var(--cream-200);
  border: var(--border-soft);
}

.lead {
  max-width: 66ch;
  color: var(--graphite-700);
  font-size: 20px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(340px, 1.15fr);
  gap: 36px;
  align-items: center;
  min-height: min(720px, calc(100dvh - 68px));
  padding: 42px 0 34px;
}

.hero-copy {
  padding-right: 28px;
  border-right: var(--border-soft);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 22px;
}

.hero-device,
.browser-frame,
.poc-frame,
.app-shell,
.lab-panel {
  min-width: 0;
  background: var(--cream-200);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-block);
}

.hero-device {
  width: 100%;
  overflow: hidden;
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 8px 12px;
  background: var(--ink-900);
  color: var(--cream-100);
  font-family: var(--mono);
  font-size: 12px;
}

.window-dot {
  display: block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--cream-100);
  border-radius: 999px;
}

.dot-close {
  background: var(--danger-700);
}

.dot-min {
  background: var(--amber-700);
}

.dot-max {
  background: var(--ui-action);
}

.device-preview {
  display: grid;
  grid-template-columns: minmax(180px, 0.78fr) minmax(220px, 1fr);
  gap: 18px;
  align-items: center;
  padding: 24px;
}

.device-preview img,
.hero-device > img {
  width: min(420px, 100%);
  margin: 0 auto;
}

.terminal-note,
.check-panel,
.acceptance-panel {
  padding: 18px;
  background: var(--crt-screen);
  color: var(--cream-100);
  border: var(--border-soft);
  box-shadow: inset 0 0 30px var(--crt-shadow);
}

.terminal-note strong {
  color: var(--screen-glow);
}

.check-panel strong,
.acceptance-panel strong {
  color: var(--cream-100);
}

.check-panel span,
.acceptance-panel span {
  position: relative;
  display: block;
  padding-left: 18px;
  color: var(--cream-200);
}

.check-panel span::before,
.acceptance-panel span::before {
  position: absolute;
  top: 0.12em;
  left: 0;
  color: var(--screen-glow);
  content: "✓";
  text-shadow: 0 0 10px var(--crt-shadow);
}

.story-band {
  position: relative;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 22px;
  padding: 72px 0;
  border-top: var(--border-soft);
}

.section-index {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  font-family: var(--mono);
  font-weight: 700;
  background: var(--cream-200);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
}

.section-copy {
  max-width: 760px;
}

.section-copy.wide {
  max-width: 960px;
}

.contrast-board,
.token-rules,
.type-asset-summary,
.variant-grid,
.download-grid,
.handoff-notes,
.social-brief-grid,
.poc-copy-panel,
.state-grid,
.component-grid {
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.contrast-board article,
.token-rules article,
.type-asset-summary article,
.variant-grid article,
.download-card,
.brief-card,
.state-card,
.component-grid article,
.handoff-notes article {
  padding: 18px;
  background: var(--cream-200);
  border: var(--border-soft);
  border-radius: var(--radius-panel);
}

.contrast-board span,
.variant-grid span,
.download-card span {
  display: block;
  color: var(--graphite-700);
  font-size: 14px;
}

.check-panel span,
.acceptance-panel span {
  font-size: 14px;
}

.file-card {
  position: relative;
  overflow: hidden;
  padding: 18px;
  color: var(--text-base);
  background: var(--cream-100);
  border: var(--border-hard);
  box-shadow: none;
}

.file-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 7px;
  content: "";
  background: repeating-linear-gradient(90deg, var(--ui-action) 0 22px, transparent 22px 30px);
  opacity: 0.36;
}

.download-card .file-card .code-label,
.download-card .file-card span,
.file-card .code-label,
.file-card span {
  color: var(--ui-action);
  text-shadow: none;
}

.download-card .file-card p,
.file-card p {
  color: var(--text-base);
}

.identity-layout {
  grid-column: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: 16px;
  margin-top: 22px;
}

.lockup-card {
  display: grid;
  gap: 16px;
  align-content: center;
  padding: 22px;
  background: var(--cream-200);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
}

.variant-grid {
  grid-column: auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 0;
}

.variant-grid img,
.download-card img {
  width: min(160px, 100%);
  margin: 0 auto 12px;
}

.wide-card {
  grid-column: span 2;
}

.swatch {
  display: block;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border: var(--border-hard);
  border-radius: var(--radius-control);
}

.swatch-ui {
  background: var(--ui-action);
}

.swatch-crt {
  background: var(--screen-glow);
  box-shadow: 0 0 22px var(--crt-shadow);
}

.swatch-ink {
  background: var(--ink-900);
}

.format-tabs {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.format-stage,
.product-stage,
.kit-stage {
  grid-column: 2;
  margin-top: 16px;
}

.format-panel,
.product-panel,
.kit-panel {
  display: none;
}

.format-panel.is-active,
.product-panel.is-active,
.kit-panel.is-active {
  display: block;
}

.carousel-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(210px, 1fr));
  gap: 14px;
}

.slide-card {
  min-height: 360px;
  padding: 14px;
  background: var(--cream-200);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
}

.slide-card .window-bar {
  margin: -14px -14px 18px;
}

.slide-card span,
.state-card span {
  font-family: var(--mono);
  font-weight: 700;
}

.cover,
.close-slide {
  background: var(--crt-screen);
  color: var(--cream-100);
  box-shadow: inset 0 0 28px var(--crt-shadow);
}

.cover h3,
.close-slide h3 {
  color: var(--screen-glow);
}

.linkedin-layout,
.instagram-layout,
.reels-layout,
.site-preview,
.poc-content {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 16px;
}

.long-post,
.feed-card,
.caption-card,
.reel-cover,
.script-card,
.site-content-panel {
  padding: 22px;
  background: var(--cream-200);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
}

.check-panel {
  display: grid;
  gap: 10px;
}

.stories-stack {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 12px;
}

.stories-stack section {
  min-height: 360px;
  padding: 18px;
  background: var(--crt-screen);
  color: var(--cream-100);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
  box-shadow: inset 0 0 28px var(--crt-shadow);
}

.site-preview {
  align-items: center;
  padding: 22px;
}

.poc-frame,
.app-shell {
  overflow: hidden;
}

.poc-frame header,
.app-shell header {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 12px;
  background: var(--cream-300);
  border-bottom: var(--border-soft);
}

.poc-frame header img,
.app-shell header img {
  width: 34px;
}

.poc-content {
  padding: 18px;
}

.poc-content aside,
.app-shell aside {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 12px;
  background: var(--cream-100);
  border: var(--border-soft);
}

.prompt-field {
  margin: 16px 0;
  padding: 14px;
  background: var(--crt-screen);
  color: var(--screen-glow);
  border: var(--border-hard);
  border-radius: var(--radius-control);
  box-shadow: inset 0 0 22px var(--crt-shadow);
}

.app-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
}

.app-shell header {
  grid-column: 1 / -1;
}

.app-shell section {
  padding: 22px;
}

.download-card {
  display: grid;
  align-content: start;
  gap: 8px;
}

.file-card {
  min-height: 122px;
}

.inline-link {
  color: var(--ui-action);
  font-weight: 700;
}

.section-nav {
  grid-column: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 56px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: var(--border-soft);
}

.nav-prev {
  grid-column: 1;
  justify-self: start;
}

.nav-next {
  grid-column: 3;
  justify-self: end;
}

.section-nav .btn:not(.nav-prev):not(.nav-next) {
  justify-self: center;
}

.site-footer,
.lab-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0 42px;
  border-top: var(--border-soft);
  color: var(--graphite-700);
}

.lab-shell {
  display: grid;
  gap: 36px;
  padding: 42px 0;
}

.lab-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 24px;
  align-items: center;
}

.lab-hero > * {
  min-width: 0;
}

.lab-panel {
  padding: 24px;
}

.logo-variant-grid {
  grid-column: auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.kit-tabs,
.kit-stage {
  grid-column: 1;
  width: min(1240px, 100%);
}

.kit-tabs {
  justify-self: center;
  margin-top: 0;
  padding: 8px;
  background: var(--cream-200);
  border: var(--border-soft);
  border-radius: var(--radius-panel);
}

.kit-tabs button {
  flex: 1 1 160px;
  min-height: var(--control-height-md);
}

.kit-stage {
  justify-self: center;
  margin-top: 0;
}

.ui-icon {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

.ui-icon-next::before,
.ui-icon-download::before,
.ui-icon-download::after {
  position: absolute;
  content: "";
}

.ui-icon-next::before {
  top: 3px;
  left: 2px;
  width: 8px;
  height: 8px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
}

.ui-icon-download::before {
  top: 1px;
  left: 6px;
  width: 2px;
  height: 8px;
  background: currentColor;
}

.ui-icon-download::after {
  right: 1px;
  bottom: 1px;
  left: 1px;
  height: 6px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  border-left: 2px solid currentColor;
}

@media (max-width: 980px) {
  .topbar,
  .aux-topbar {
    position: static;
    grid-template-columns: 1fr;
  }

  .main-nav {
    justify-content: start;
  }

  .hero,
  .identity-layout,
  .linkedin-layout,
  .instagram-layout,
  .reels-layout,
  .site-preview,
  .poc-content,
  .lab-hero,
  .app-shell {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-right: 0;
    border-right: 0;
  }

  .contrast-board,
  .token-rules,
  .type-asset-summary,
  .variant-grid,
  .download-grid,
  .handoff-notes,
  .social-brief-grid,
  .poc-copy-panel,
  .state-grid,
  .component-grid,
  .carousel-track,
  .stories-stack,
  .logo-variant-grid {
    grid-template-columns: 1fr 1fr;
  }

  .wide-card {
    grid-column: span 1;
  }
}

@media (max-width: 640px) {
  .section-shell,
  .lab-shell,
  .lab-footer {
    width: min(100% - 28px, 1240px);
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 32px;
  }

  h3,
  .lead {
    font-size: 20px;
  }

  .story-band {
    grid-template-columns: 1fr;
    padding: 48px 0;
  }

  .section-index,
  .contrast-board,
  .token-rules,
  .type-asset-summary,
  .variant-grid,
  .download-grid,
  .handoff-notes,
  .social-brief-grid,
  .poc-copy-panel,
  .state-grid,
  .component-grid,
  .format-tabs,
  .format-stage,
  .product-stage,
  .kit-stage,
  .section-nav {
    grid-column: 1;
  }

  .contrast-board,
  .token-rules,
  .type-asset-summary,
  .variant-grid,
  .download-grid,
  .handoff-notes,
  .social-brief-grid,
  .poc-copy-panel,
  .state-grid,
  .component-grid,
  .carousel-track,
  .stories-stack,
  .logo-variant-grid {
    grid-template-columns: 1fr;
  }

  .device-preview {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .site-footer,
  .lab-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .section-nav {
    grid-template-columns: 1fr 1fr;
  }

  .nav-prev {
    grid-column: 1;
  }

  .nav-next {
    grid-column: 2;
  }

  .section-nav .btn:not(.nav-prev):not(.nav-next) {
    grid-column: 1 / -1;
    grid-row: 2;
    max-width: 100%;
  }

  .main-nav,
  .format-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .main-nav a,
  .format-tabs button {
    width: auto;
    min-width: max-content;
    min-height: var(--control-height-md);
  }

  .action-row .btn,
  .lab-footer .btn {
    width: 100%;
  }
}