:root {
  color-scheme: light;
  --bg: #f5f7f3;
  --surface: #ffffff;
  --surface-soft: #eef3ef;
  --surface-warm: #fff7ec;
  --ink: #16201c;
  --muted: #5d6862;
  --line: #d7ded8;
  --green: #2e6b50;
  --teal: #27737a;
  --coral: #b84b3e;
  --gold: #b9852c;
  --violet: #61558f;
  --shadow: 0 18px 42px rgba(22, 32, 28, 0.12);
  --radius: 8px;
  --content: 1440px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
  margin: 0;
}

body.builder-page {
  background:
    linear-gradient(180deg, rgba(46, 107, 80, 0.08), rgba(245, 247, 243, 0) 280px),
    var(--bg);
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
}

code {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 4px;
}

.skip-link {
  background: var(--ink);
  color: #ffffff;
  left: 12px;
  padding: 10px 14px;
  position: absolute;
  top: -80px;
  z-index: 50;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 18px;
  justify-content: space-between;
  padding: 12px 24px;
  position: sticky;
  top: 0;
  z-index: 30;
}

.brand-link {
  align-items: center;
  display: flex;
  gap: 12px;
  min-width: 230px;
  text-decoration: none;
}

.brand-mark {
  background: var(--ink);
  border: 1px solid rgba(22, 32, 28, 0.18);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(22, 32, 28, 0.18);
  display: block;
  height: 58px;
  object-fit: cover;
  width: 58px;
}

.brand-link strong,
.brand-link span {
  display: block;
}

.brand-link strong {
  font-size: 1rem;
  line-height: 1.15;
}

.kicker,
.brand-kicker,
.meta-label,
.form-type,
.filename,
.status-line,
.side-nav-title,
.card-tag,
.draft-label {
  color: var(--muted);
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0;
}

.draft-label {
  color: var(--coral);
}

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

.site-nav a,
.button,
.builder-menu summary,
.side-nav a,
.mobile-page-menu select {
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
}

.site-nav a,
.builder-menu summary {
  color: var(--muted);
  padding: 9px 11px;
}

.site-nav a:hover,
.site-nav a.active,
.builder-menu summary:hover,
.builder-menu summary.active {
  background: var(--surface-soft);
  color: var(--ink);
}

.site-nav a.active,
.builder-menu summary.active {
  box-shadow: inset 0 -3px 0 var(--green);
}

.builder-menu {
  position: relative;
}

.builder-menu summary {
  cursor: pointer;
  list-style: none;
}

.builder-menu summary::-webkit-details-marker {
  display: none;
}

.builder-menu summary::after {
  border: solid currentColor;
  border-width: 0 2px 2px 0;
  content: "";
  display: inline-block;
  height: 7px;
  margin-left: 10px;
  transform: translateY(-2px) rotate(45deg);
  width: 7px;
}

.builder-menu[open] summary::after {
  transform: translateY(2px) rotate(225deg);
}

.builder-menu-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  gap: 4px;
  min-width: 250px;
  padding: 8px;
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  z-index: 40;
}

.mobile-page-menu {
  display: none;
}

.page-shell,
.home-shell,
.app-shell {
  margin: 0 auto;
  max-width: var(--content);
  padding: 24px;
}

.workbench-hero {
  align-items: center;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 380px);
  min-height: min(720px, calc(100vh - 88px));
  padding: 22px 0 32px;
}

.workbench-hero h1,
.page-intro h1 {
  font-size: clamp(2.1rem, 5vw, 4.9rem);
  letter-spacing: 0;
  line-height: 1.07;
  margin: 0;
  max-width: 920px;
}

.lede {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.24rem);
  margin: 18px 0 0;
  max-width: 760px;
}

.hero-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.button {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  min-height: 42px;
  padding: 10px 14px;
}

.button:hover {
  border-color: rgba(46, 107, 80, 0.45);
  transform: translateY(-1px);
}

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

.button.quiet {
  background: transparent;
}

.visual-board {
  background: var(--ink);
  border: 1px solid rgba(22, 32, 28, 0.18);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.visual-board img {
  aspect-ratio: 3 / 2;
  display: block;
  height: auto;
  object-fit: cover;
  width: 100%;
}

.visual-caption {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.92rem;
  margin: 0;
  padding: 12px 14px;
}

.terrain-map-figure {
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  margin: 8px 0 18px;
  overflow: hidden;
}

.terrain-map-figure img {
  display: block;
  height: auto;
  width: 100%;
}

.terrain-map-figure figcaption {
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.92rem;
  margin: 0;
  padding: 12px 14px;
}

.terrain-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 22px;
}

.terrain-grid article {
  background: var(--surface-warm);
  border: 1px solid #ead7b8;
  border-radius: var(--radius);
  padding: 15px;
}

.terrain-grid span {
  color: var(--green);
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.terrain-grid p {
  color: var(--muted);
  margin: 6px 0 0;
}

.lane-band,
.note-band,
.boundary-strip {
  border-top: 1px solid var(--line);
  margin-top: 18px;
  padding: 28px 0;
}

.section-heading {
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-bottom: 18px;
}

.section-heading h2,
.form-heading h2,
.preview-heading h2 {
  font-size: clamp(1.35rem, 2.5vw, 2.05rem);
  letter-spacing: 0;
  line-height: 1.12;
  margin: 0;
}

.section-heading p {
  color: var(--muted);
  margin: 4px 0 0;
  max-width: 620px;
}

.lane-grid,
.builder-grid,
.resource-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lane-grid {
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
}

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

.lane-card,
.builder-card,
.resource-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(22, 32, 28, 0.06);
  display: block;
  min-height: 100%;
  padding: 18px;
  text-decoration: none;
}

.lane-card:hover,
.builder-card:hover,
.resource-card:hover {
  border-color: rgba(46, 107, 80, 0.45);
  transform: translateY(-2px);
}

.lane-card strong,
.builder-card strong,
.resource-card strong {
  display: block;
  font-size: 1.08rem;
  line-height: 1.2;
  margin-top: 6px;
}

.lane-card p,
.builder-card p,
.resource-card p {
  color: var(--muted);
  margin: 10px 0 0;
}

.lane-card.documentary {
  box-shadow: inset 0 4px 0 var(--green);
}

.lane-card.research {
  box-shadow: inset 0 4px 0 var(--teal);
}

.lane-card.analysis {
  box-shadow: inset 0 4px 0 var(--violet);
}

.lane-card.viewing {
  box-shadow: inset 0 4px 0 var(--gold);
}

.lane-card.handoff {
  box-shadow: inset 0 4px 0 var(--violet);
}

.lane-card.festival {
  box-shadow: inset 0 4px 0 var(--gold);
}

.resource-card.grants {
  box-shadow: inset 0 4px 0 var(--teal);
}

.builder-card[data-lane="Foundation"] {
  box-shadow: inset 0 4px 0 var(--green);
}

.builder-card[data-lane="Research map"] {
  box-shadow: inset 0 4px 0 var(--teal);
}

.builder-card[data-lane="Scene analysis and assembly"] {
  box-shadow: inset 0 4px 0 var(--violet);
}

.builder-card[data-lane="Festival entry"] {
  box-shadow: inset 0 4px 0 var(--gold);
}

.builder-card[data-lane="Viewing and follow-up"] {
  box-shadow: inset 0 4px 0 var(--gold);
}

.builder-card[data-lane="Agent handoff"] {
  box-shadow: inset 0 4px 0 var(--violet);
}

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

.boundary-strip p {
  background: var(--surface-warm);
  border: 1px solid #ead7b8;
  border-radius: var(--radius);
  margin: 0;
  padding: 14px;
}

.page-intro {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 28px 0 20px;
}

.intro-copy {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 8px 0 0;
  max-width: 820px;
}

.page-art {
  align-self: start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: block;
  height: 86px;
  object-fit: cover;
  width: 86px;
}

.builder-layout {
  align-items: start;
  display: grid;
  gap: 16px;
  grid-template-columns: 260px minmax(0, 1fr) minmax(320px, 0.9fr);
}

.side-nav,
.form-panel,
.preview-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(22, 32, 28, 0.06);
}

.side-nav {
  display: grid;
  gap: 6px;
  padding: 12px;
  position: sticky;
  top: 92px;
}

.side-nav-title {
  padding: 6px 8px;
}

.side-nav a {
  border: 1px solid transparent;
  display: block;
  padding: 10px;
}

.side-nav a.active,
.side-nav a:hover {
  background: var(--surface-soft);
  border-color: var(--line);
}

.side-nav a span {
  color: var(--muted);
  display: block;
  font-size: 0.84rem;
  font-weight: 500;
  margin-top: 2px;
}

.side-note {
  background: var(--surface-warm);
  border: 1px solid #ead7b8;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 8px;
  padding: 12px;
}

.form-panel,
.preview-panel {
  padding: 18px;
}

.form-heading,
.preview-heading {
  align-items: start;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  margin-bottom: 16px;
}

.field-grid {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  font-weight: 800;
}

.field input,
.field select,
.field textarea,
.markdown-preview {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  padding: 10px 11px;
  width: 100%;
}

.field textarea {
  min-height: 108px;
  resize: vertical;
}

.field textarea.short {
  min-height: 72px;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.markdown-preview {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.92rem;
  min-height: 640px;
  resize: vertical;
  white-space: pre;
}

.status-line {
  margin-top: 10px;
}

.footer-nav {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 22px 0 8px;
}

.footer-nav-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  text-decoration: none;
}

.footer-nav-card:hover {
  border-color: rgba(46, 107, 80, 0.45);
}

.footer-nav-card span {
  color: var(--muted);
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
}

.footer-nav-card strong {
  display: block;
  margin-top: 4px;
}

.footer-nav-card.next {
  text-align: right;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  margin-top: 28px;
  padding: 20px 24px 34px;
}

.site-footer-inner {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--content);
}

.site-footer a {
  font-weight: 800;
}

.back-to-top {
  background: var(--ink);
  border: 0;
  border-radius: 6px;
  bottom: 18px;
  box-shadow: var(--shadow);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  opacity: 0;
  padding: 10px 12px;
  pointer-events: none;
  position: fixed;
  right: 18px;
  transform: translateY(10px);
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 45;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    display: none;
  }

  .mobile-nav-ready .mobile-page-menu {
    align-items: center;
    display: flex;
    gap: 8px;
    width: 100%;
  }

  .mobile-page-menu select {
    background: var(--surface);
    border: 1px solid var(--line);
    flex: 1;
    min-height: 42px;
    padding: 9px 10px;
  }

  .builder-layout {
    grid-template-columns: 1fr;
  }

  .builder-page .side-nav,
  .side-nav {
    display: none !important;
  }
}

@media (max-width: 880px) {
  .workbench-hero,
  .page-intro,
  .section-heading,
  .site-footer-inner {
    grid-template-columns: 1fr;
  }

  .workbench-hero {
    min-height: 0;
  }

  .lane-grid,
  .builder-grid,
  .resource-grid,
  .terrain-grid,
  .boundary-strip {
    grid-template-columns: 1fr;
  }

  .page-art {
    display: none;
  }

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

  .footer-nav-card.next {
    text-align: left;
  }
}

@media (max-width: 560px) {
  .page-shell,
  .home-shell,
  .app-shell {
    padding: 16px;
  }

  .site-header {
    padding: 10px 16px;
  }

  .brand-link {
    min-width: 0;
  }

  .brand-mark {
    height: 50px;
    width: 50px;
  }

  .form-heading,
  .preview-heading {
    display: block;
  }

  .markdown-preview {
    min-height: 460px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}