:root {
  --bg: #f4efe7;
  --bg-deep: #e5d7c0;
  --surface: rgba(255, 251, 245, 0.96);
  --surface-soft: rgba(255, 251, 245, 0.78);
  --surface-strong: #fffdf8;
  --ink: #1c1d21;
  --muted: #5c605d;
  --line: rgba(28, 29, 33, 0.12);
  --line-strong: rgba(28, 29, 33, 0.18);
  --accent: #8d5428;
  --accent-soft: rgba(141, 84, 40, 0.12);
  --accent-deep: #693717;
  --success: #356c4a;
  --danger: #a63229;
  --shadow: 0 26px 80px rgba(34, 21, 11, 0.08);
  --radius: 24px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(255,255,255,0.75), transparent 26%),
    radial-gradient(circle at top right, rgba(232,216,193,0.66), transparent 24%),
    linear-gradient(180deg, #fff8ef 0%, var(--bg) 38%, #ece3d6 100%);
  color: var(--ink);
}
body { font-family: 'Source Sans 3', sans-serif; }
a { color: inherit; }
button, select, input, textarea { font: inherit; }
button { cursor: pointer; }

.site-shell {
  min-height: 100vh;
  padding: clamp(1rem, 2.4vw, 2rem);
  display: grid;
  gap: 1.1rem;
}

.hero {
  background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(244,237,226,0.92));
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow: var(--shadow);
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr minmax(18rem, 24rem);
  gap: 1.2rem;
  padding: clamp(1.3rem, 2.5vw, 2rem);
}

.hero-copy {
  display: grid;
  align-content: start;
  gap: 0.8rem;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.76rem;
  color: var(--muted);
}

.kicker::before {
  content: '';
  width: 2.2rem;
  height: 1px;
  background: var(--accent);
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', serif;
  letter-spacing: -0.03em;
  margin: 0;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 4.2rem);
  line-height: 0.96;
}

.deck {
  max-width: 58rem;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.54;
  margin: 0;
}

.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.card-surface {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.55);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.hero-actions {
  padding: 1rem;
  display: grid;
  align-content: start;
  gap: 1rem;
}

.action-group {
  display: grid;
  gap: 0.55rem;
}

.action-label {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.wrap-row { align-items: stretch; }

.action-row.compact button { flex: 1 1 0; }

button,
select {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.86);
  padding: 0.76rem 1rem;
  color: var(--ink);
}

button:hover,
select:hover,
input:hover,
textarea:hover { border-color: var(--line-strong); }

button.primary {
  background: var(--ink);
  color: white;
  border-color: transparent;
}

button.ghost-button {
  background: var(--surface-strong);
}

.module-section,
.summary-section,
.quickstart-section {
  display: grid;
  gap: 0.9rem;
}

.quickstart-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.quickstart-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(248,242,234,0.84));
  padding: 1rem;
  text-align: left;
  display: grid;
  gap: 0.55rem;
  min-height: 11rem;
  transition: transform 160ms ease, border-color 160ms ease;
}

.quickstart-card:hover {
  transform: translateY(-2px);
  border-color: rgba(141,84,40,0.35);
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: end;
}

.section-heading p {
  color: var(--muted);
  max-width: 42rem;
  margin: 0;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.module-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,0.86);
  padding: 1rem;
  text-align: left;
  display: grid;
  gap: 0.55rem;
  min-height: 13rem;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.module-card:hover {
  transform: translateY(-2px);
  border-color: rgba(141,84,40,0.35);
}

.module-card.active {
  background: linear-gradient(180deg, rgba(255,250,244,0.98), rgba(246,234,215,0.96));
  border-color: rgba(141,84,40,0.35);
}

.module-kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.73rem;
  color: var(--accent-deep);
  font-weight: 700;
}

.module-card strong {
  font-size: 1.1rem;
}

.module-card p {
  color: var(--muted);
  line-height: 1.4;
  margin: 0;
}

.module-meta {
  margin-top: auto;
  display: grid;
  gap: 0.25rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.workspace-shell {
  display: grid;
  grid-template-columns: minmax(18rem, 22rem) minmax(0, 1fr) minmax(18rem, 24rem);
  gap: 1rem;
  align-items: start;
}

.navigator-rail,
.context-rail {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow: auto;
  padding: 1rem;
  display: grid;
  gap: 1rem;
  align-content: start;
}

.workspace-column {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.nav-section {
  display: grid;
  gap: 0.8rem;
}

.pane-heading.compact {
  gap: 0.24rem;
}

.pane-heading.compact p {
  font-size: 0.94rem;
}

.quickstart-stack,
.module-stack {
  display: grid;
  gap: 0.75rem;
}

.quickstart-stack .quickstart-card,
.module-stack .module-card {
  min-height: auto;
}

.summary-card {
  padding: 1rem 1.1rem;
  display: grid;
  gap: 0.45rem;
}

.summary-card span {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.summary-card strong {
  font-size: 1.02rem;
  line-height: 1.35;
}

.lab-shell {
  overflow: hidden;
}

.lab-header {
  padding: 1.25rem 1.3rem 1rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.78), rgba(249,243,233,0.68));
}

.lab-header p {
  margin: 0.55rem 0 0;
  color: var(--muted);
  line-height: 1.5;
  max-width: 50rem;
}

.lab-body {
  display: grid;
  grid-template-columns: minmax(17rem, 21rem) minmax(0, 1fr);
  min-height: 0;
}

.config-pane {
  padding: 1.1rem;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(248,242,234,0.58));
  display: grid;
  align-content: start;
  gap: 0.95rem;
}

.pane-heading {
  display: grid;
  gap: 0.3rem;
}

.pane-heading p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.82rem 0.9rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.field textarea {
  min-height: 8.6rem;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92rem;
}

.field-note {
  color: var(--muted);
  line-height: 1.45;
}

.range-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.7rem;
}

.range-row output {
  min-width: 3rem;
  text-align: right;
  font-weight: 700;
  color: var(--accent-deep);
}

.results-pane {
  display: grid;
  gap: 1rem;
  padding: 1rem 1.1rem 1.2rem;
}

.stage-toolbar {
  padding: 0.95rem 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(16rem, 1fr);
  gap: 0.9rem;
  align-items: start;
}

.stage-toolbar.passive {
  grid-template-columns: minmax(0, 1fr) auto;
}

.toolbar-copy {
  display: grid;
  gap: 0.35rem;
}

.toolbar-copy strong {
  font-size: 1.02rem;
}

.toolbar-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.48;
}

.toolbar-actions,
.timeline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.timeline-block {
  display: grid;
  gap: 0.65rem;
}

.timeline-topline {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.timeline-slider {
  width: 100%;
}

.results-stage {
  display: grid;
  gap: 1rem;
}

.figure-grid {
  display: grid;
  gap: 0.95rem;
}

.figure-grid.double { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.figure-grid.triple { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.top-gap { margin-top: 0.2rem; }

.figure {
  background: rgba(255,255,255,0.72);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 0.9rem;
}

.figure h4 {
  margin-bottom: 0.55rem;
  font-size: 1.04rem;
}

.figure p { color: var(--muted); }
.figure canvas,
.figure svg { width: 100%; height: auto; display: block; }
.figure small {
  display: block;
  margin-top: 0.45rem;
  color: var(--muted);
  line-height: 1.4;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.metric-card {
  padding: 0.9rem 1rem;
  display: grid;
  gap: 0.3rem;
}

.metric-card strong {
  font-size: 1.1rem;
}

.metric-card span {
  color: var(--muted);
  font-size: 0.9rem;
}

.metric-card.good strong { color: var(--success); }
.metric-card.bad strong { color: var(--danger); }

.context-rail {
  display: grid;
  gap: 0.95rem;
  align-content: start;
}

.context-rail .context-card {
  box-shadow: none;
}

.context-card {
  padding: 1rem 1.05rem;
  display: grid;
  gap: 0.75rem;
}

.context-card p,
.context-card li {
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}

.context-card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.ref-list {
  display: grid;
  gap: 0.65rem;
}

.ref-list a {
  text-decoration: none;
  padding: 0.8rem 0.85rem;
  border-radius: 16px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--line);
  display: grid;
  gap: 0.18rem;
}

.ref-list a small { color: var(--muted); }

.fit-pill,
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.34rem 0.72rem;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
}

.fit-pill.subtle {
  background: rgba(28,29,33,0.06);
  color: var(--muted);
}

.callout {
  padding: 0.95rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.7);
}

.callout p { margin: 0.35rem 0 0; color: var(--muted); line-height: 1.45; }
.callout.good { background: rgba(53, 108, 74, 0.08); border-color: rgba(53, 108, 74, 0.18); }
.callout.warn { background: rgba(166, 50, 41, 0.08); border-color: rgba(166, 50, 41, 0.18); }

.toggle-stack {
  display: grid;
  gap: 0.65rem;
}

.toggle-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  align-items: start;
  padding: 0.82rem 0.9rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.74);
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.95rem;
  color: var(--ink);
}

.toggle-card input {
  width: 1.05rem;
  height: 1.05rem;
  margin-top: 0.15rem;
}

.toggle-card span {
  display: grid;
  gap: 0.2rem;
}

.toggle-card strong {
  font-size: 0.98rem;
}

.toggle-card small {
  color: var(--muted);
  line-height: 1.4;
}

.workflow-list {
  display: grid;
  gap: 0.7rem;
}

.workflow-step {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.8rem 0.9rem;
  background: rgba(255,255,255,0.72);
  display: grid;
  gap: 0.18rem;
}

.workflow-step span {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.workflow-step strong {
  font-size: 1rem;
}

.workflow-step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.42;
}

.workflow-step.done strong,
.workflow-step.ready strong {
  color: var(--success);
}

.workflow-step.blocked strong {
  color: var(--danger);
}

.workflow-step.in-progress strong {
  color: var(--accent-deep);
}

.recommendation-grid {
  display: grid;
  gap: 0.75rem;
}

.recommendation-card {
  padding: 0.9rem;
  display: grid;
  gap: 0.55rem;
}

.recommendation-card.good {
  border-color: rgba(53, 108, 74, 0.18);
  background: rgba(53, 108, 74, 0.05);
}

.recommendation-card.neutral {
  border-color: rgba(28, 29, 33, 0.12);
}

.recommendation-header,
.recommendation-meta,
.before-after-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.recommendation-kind,
.recommendation-regime {
  border-radius: 999px;
  padding: 0.26rem 0.6rem;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(28,29,33,0.06);
  color: var(--muted);
}

.recommendation-meta span {
  font-size: 0.8rem;
  color: var(--muted);
}

.before-after-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.before-after-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.85rem 0.9rem;
  display: grid;
  gap: 0.25rem;
  background: rgba(255,255,255,0.72);
}

.before-after-card.before {
  border-color: rgba(166, 50, 41, 0.2);
  background: rgba(166, 50, 41, 0.06);
}

.before-after-card.after {
  border-color: rgba(53, 108, 74, 0.2);
  background: rgba(53, 108, 74, 0.06);
}

.before-after-card small {
  margin-top: 0;
}

.before-after-card code {
  display: block;
  white-space: pre-wrap;
  background: rgba(255,255,255,0.75);
  padding: 0.72rem;
  border-radius: 14px;
  line-height: 1.42;
}

.guidance-list {
  margin: 0.8rem 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.45rem;
}

.guidance-list li {
  color: var(--muted);
  line-height: 1.45;
}

.studio-note {
  margin: 0.8rem 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.value-grid code {
  display: block;
  white-space: pre-wrap;
  background: rgba(28,29,33,0.05);
  padding: 0.82rem;
  border-radius: 14px;
  line-height: 1.45;
}

.benchmark-table {
  max-height: 20rem;
  overflow: auto;
}

.benchmark-module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.benchmark-module-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.78);
  padding: 0.9rem;
  display: grid;
  gap: 0.25rem;
}

.benchmark-module-card span {
  color: var(--accent-deep);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.benchmark-module-card small {
  color: var(--muted);
  line-height: 1.4;
}

.benchmark-module-card code {
  display: inline-flex;
  width: fit-content;
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  background: rgba(30, 65, 52, 0.08);
  color: var(--ink);
  font-size: 0.72rem;
}

.finding-list {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  line-height: 1.45;
}

.object-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.object-card,
.diagnostic-card,
.detail-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.78);
  padding: 0.9rem;
  display: grid;
  gap: 0.45rem;
}

.object-meta {
  display: grid;
  gap: 0.2rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.detail-list {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.25rem;
}

.detail-list li {
  color: var(--muted);
  line-height: 1.42;
}

.diagnostic-list,
.detail-grid {
  display: grid;
  gap: 0.75rem;
}

.diagnostic-card.success {
  border-color: rgba(53, 108, 74, 0.22);
  background: rgba(53, 108, 74, 0.08);
}

.diagnostic-card.warning,
.diagnostic-card.error {
  border-color: rgba(166, 50, 41, 0.22);
  background: rgba(166, 50, 41, 0.08);
}

.diagnostic-card.info {
  border-color: rgba(28, 29, 33, 0.14);
}

.diagnostic-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--muted);
}

.detail-card code,
.callout code {
  display: block;
  white-space: pre-wrap;
  background: rgba(28,29,33,0.05);
  padding: 0.72rem;
  border-radius: 14px;
  line-height: 1.42;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.matrix-table th,
.matrix-table td {
  padding: 0.4rem;
  text-align: right;
}

.matrix-table thead th,
.matrix-table tbody th {
  color: var(--muted);
}

@media (max-width: 1260px) {
  .hero-grid,
  .workspace-shell,
  .lab-body,
  .stage-toolbar,
  .figure-grid.triple,
  .metric-grid,
  .summary-grid,
  .module-grid,
  .quickstart-grid,
  .benchmark-module-grid,
  .object-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-grid,
  .workspace-shell,
  .lab-body,
  .stage-toolbar,
  .stage-toolbar.passive {
    grid-template-columns: 1fr;
  }

  .navigator-rail,
  .context-rail {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .config-pane {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 860px) {
  .site-shell { padding: 0.8rem; }
  .module-grid,
  .summary-grid,
  .quickstart-grid,
  .figure-grid.double,
  .figure-grid.triple,
  .metric-grid,
  .value-grid,
  .before-after-grid,
  .benchmark-module-grid,
  .object-grid {
    grid-template-columns: 1fr;
  }

  .action-row,
  .hero-meta-row,
  .section-heading,
  .timeline-topline,
  .toolbar-actions,
  .timeline-actions {
    align-items: stretch;
  }

  button,
  select {
    width: 100%;
  }
}