:root {
  color-scheme: dark;
  --bg-app: #09090b;
  --bg-primary: #111418;
  --bg-secondary: #171b20;
  --bg-tertiary: #1b2027;
  --bg-hover: #20262d;
  --text-primary: #f2f4f7;
  --text-secondary: #c6ccd4;
  --text-muted: #99a3ae;
  --text-tertiary: #66717c;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #d97757;
  --accent-hover: #c76648;
  --accent-ink: #e59579;
  --accent-tint: rgba(217, 119, 87, 0.16);
  --accent-border: rgba(217, 119, 87, 0.3);
  --blue: #8c92e0;
  --green: #5ed39e;
  --gold: #d7a84d;
  --danger: #e56d67;
  --paper: #fbf8f2;
  --shadow-lg: 0 28px 80px rgba(0, 0, 0, 0.34);
  --shadow-panel: 0 0 0 1px rgba(255, 255, 255, 0.06), 0 20px 50px rgba(0, 0, 0, 0.24);
  --font-ui: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text-primary);
  background:
    linear-gradient(180deg, rgba(217, 119, 87, 0.08), transparent 320px),
    var(--bg-app);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

.roomos-page {
  min-height: 100vh;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 9, 11, 0.86);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.hero-actions,
.proof-strip,
.panel-head,
.preview-header,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  flex: none;
  place-items: center;
  border-radius: 8px;
  color: #fffdfa;
  background: linear-gradient(180deg, var(--accent), var(--accent-hover));
  box-shadow: 0 12px 28px rgba(217, 119, 87, 0.28);
  font-size: 12px;
  font-weight: 800;
}

.brand-stack {
  display: grid;
  gap: 1px;
}

.brand-stack strong {
  font-size: 14px;
}

.brand-stack small {
  color: var(--text-tertiary);
  font-size: 11px;
}

.nav-links {
  gap: 8px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 700;
  min-height: 36px;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.12s ease,
    background 0.12s ease,
    border-color 0.12s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fffdfa;
  background: linear-gradient(180deg, var(--accent), var(--accent-hover));
  box-shadow: 0 14px 34px rgba(217, 119, 87, 0.22);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: linear-gradient(180deg, #e08360, var(--accent-hover));
}

.button-secondary,
.button-ghost {
  color: var(--text-primary);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.06);
}

.button-secondary:hover,
.button-secondary:focus-visible,
.button-ghost:hover,
.button-ghost:focus-visible {
  border-color: var(--accent-border);
  background: var(--accent-tint);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(540px, 1.1fr);
  gap: 32px;
  width: min(1360px, calc(100% - 56px));
  min-height: calc(100svh - 72px);
  margin: 0 auto;
  padding: 64px 0 48px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.live-dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(94, 211, 158, 0.14);
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: 72px;
  line-height: 0.98;
  font-weight: 850;
}

.hero-text {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1.65;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.proof-strip {
  flex-wrap: wrap;
  gap: 1px;
  max-width: 760px;
  margin-top: 32px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: var(--shadow-panel);
}

.proof-strip div {
  flex: 1 1 180px;
  min-height: 112px;
  padding: 18px;
  background: rgba(17, 20, 24, 0.92);
}

.proof-strip strong {
  display: block;
  margin-bottom: 7px;
  color: var(--accent-ink);
  font-size: 18px;
}

.proof-strip span,
.lane p,
.section-heading p,
.artifact-list span,
.form-status,
.sheet-footer {
  color: var(--text-muted);
  line-height: 1.55;
}

.run-console {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(17, 20, 24, 0.94);
  box-shadow: var(--shadow-lg);
}

.console-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.console-topbar div {
  display: flex;
  gap: 6px;
}

.window-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--line-strong);
}

.window-dot:first-child {
  background: var(--danger);
}

.window-dot:nth-child(2) {
  background: var(--gold);
}

.window-dot:nth-child(3) {
  background: var(--green);
}

.console-url {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text-tertiary);
  background: var(--bg-app);
  font-family: var(--font-mono);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.console-state {
  padding: 4px 8px;
  border: 1px solid rgba(94, 211, 158, 0.24);
  border-radius: 6px;
  color: var(--green);
  background: rgba(94, 211, 158, 0.1);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
}

.console-body {
  padding: 16px;
}

.run-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--accent-border);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(217, 119, 87, 0.14), rgba(217, 119, 87, 0.05));
}

.summary-label {
  display: block;
  margin-bottom: 5px;
  color: var(--accent-ink);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.run-summary strong {
  display: block;
  font-size: 22px;
}

.summary-sub {
  display: block;
  margin-top: 4px;
  color: var(--text-muted);
}

.summary-meter {
  align-self: center;
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
}

.summary-meter span {
  display: block;
  width: var(--value);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--green));
}

.console-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 12px;
  margin-top: 12px;
}

.trace-panel,
.model-panel,
.receipt-panel,
.lane,
.artifact-list li,
.evidence-sheet,
.intake,
.request-preview {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.trace-panel {
  grid-row: span 2;
}

.panel-head {
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 800;
}

.panel-head b {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
}

.trace-list,
.receipt-list,
.artifact-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.trace-list {
  display: grid;
  gap: 2px;
  padding: 12px;
}

.trace-list li {
  display: grid;
  grid-template-columns: 42px 14px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.035);
}

.trace-time,
.trace-list b,
.model-row strong,
.receipt-list b,
.token-grid span,
.preview-header,
.request-preview pre {
  font-family: var(--font-mono);
}

.trace-time {
  color: var(--text-tertiary);
  font-size: 11px;
}

.trace-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
}

.trace-dot-accent {
  background: var(--accent);
}

.trace-dot-blue {
  background: var(--blue);
}

.trace-dot-green {
  background: var(--green);
}

.trace-dot-gold {
  background: var(--gold);
}

.trace-list b {
  color: var(--text-secondary);
  font-size: 11px;
}

.model-row {
  display: grid;
  gap: 6px;
  padding: 14px;
}

.model-row span {
  color: var(--text-muted);
}

.model-row strong {
  color: var(--text-primary);
  font-size: 12px;
}

.token-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border-top: 1px solid var(--line);
  background: var(--line);
}

.token-grid div {
  display: grid;
  gap: 2px;
  min-height: 74px;
  padding: 13px 10px;
  background: rgba(17, 20, 24, 0.8);
}

.token-grid b {
  color: var(--accent-ink);
  font-size: 18px;
}

.token-grid span {
  color: var(--text-tertiary);
  font-size: 10px;
  text-transform: uppercase;
}

.receipt-list {
  display: grid;
  gap: 1px;
  background: var(--line);
}

.receipt-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 42px;
  padding: 0 14px;
  background: rgba(17, 20, 24, 0.84);
}

.receipt-list span {
  min-width: 0;
  overflow: hidden;
  color: var(--text-muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.receipt-list b {
  color: var(--green);
  font-size: 11px;
}

.section {
  width: min(1180px, calc(100% - 56px));
  margin: 88px auto;
}

.section-heading {
  max-width: 720px;
}

.section h2 {
  margin: 0;
  font-size: 44px;
  line-height: 1.05;
}

.lane-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.lane {
  min-height: 270px;
  padding: 22px;
}

.lane-kicker {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-weight: 800;
}

.lane h3 {
  margin: 44px 0 12px;
  font-size: 18px;
}

.artifact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 18px;
  align-items: start;
  margin-top: 28px;
}

.artifact-list {
  display: grid;
  gap: 10px;
}

.artifact-list li {
  padding: 18px;
}

.artifact-list strong {
  display: block;
  margin-bottom: 5px;
  color: var(--text-primary);
}

.evidence-sheet {
  overflow: hidden;
}

.sheet-row {
  display: grid;
  grid-template-columns: 0.85fr 1.25fr 0.5fr;
  gap: 12px;
  min-height: 62px;
  align-items: center;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
}

.sheet-head {
  min-height: 44px;
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.04);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.sheet-row b {
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 12px;
}

.sheet-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 18px;
  color: var(--text-muted);
}

.start-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(320px, 0.74fr);
  gap: 18px;
  align-items: start;
  margin-top: 28px;
}

.intake {
  display: grid;
  gap: 16px;
  padding: 20px;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 0;
  margin: 0;
  border: 0;
}

.segmented label {
  cursor: pointer;
}

.segmented input {
  position: absolute;
  opacity: 0;
}

.segmented span {
  display: grid;
  min-height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.035);
  font-weight: 800;
}

.segmented input:checked + span {
  color: #fffdfa;
  border-color: var(--accent-border);
  background: var(--accent-tint);
}

.field {
  display: grid;
  gap: 8px;
  color: var(--text-secondary);
  font-weight: 800;
}

.field input,
.field textarea {
  width: 100%;
  min-height: 44px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-primary);
  background: rgba(9, 9, 11, 0.62);
  font-weight: 600;
}

.field textarea {
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-tertiary);
}

.field input:focus,
.field textarea:focus,
.button:focus-visible,
.nav-links a:focus-visible {
  outline: 3px solid rgba(217, 119, 87, 0.25);
  outline-offset: 2px;
}

.form-status {
  min-height: 24px;
  margin: 0;
}

.request-preview {
  overflow: hidden;
}

.preview-header {
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  font-size: 11px;
  font-weight: 800;
}

.preview-header span:last-child {
  color: var(--accent-ink);
}

.request-preview pre {
  min-height: 500px;
  margin: 0;
  padding: 18px;
  overflow: auto;
  color: #d8dee6;
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
}

.site-footer {
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  padding: 28px;
  color: var(--text-muted);
  border-top: 1px solid var(--line);
  background: rgba(9, 9, 11, 0.78);
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  color: var(--text-primary);
  min-height: 44px;
}

@media (max-width: 1120px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .run-console {
    max-width: 840px;
  }

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

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    min-height: auto;
    padding: 14px 18px;
  }

  .nav-links,
  .header-action {
    display: none;
  }

  .hero,
  .section {
    width: min(100% - 32px, 720px);
  }

  .hero h1 {
    font-size: 52px;
  }

  .console-grid,
  .artifact-layout,
  .start-layout {
    grid-template-columns: 1fr;
  }

  .run-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  :root {
    color-scheme: light;
    --bg-app: #fbf4e7;
    --bg-primary: #fbf4e7;
    --bg-secondary: #f3e8d8;
    --bg-tertiary: #eaddc6;
    --bg-hover: #e2d9c8;
    --text-primary: #2b1d14;
    --text-secondary: #5c4938;
    --text-muted: #8b6f5b;
    --text-tertiary: #a89378;
    --line: #e2d9c8;
    --line-strong: #c8b89e;
    --accent: #c56a3c;
    --accent-hover: #9c4f25;
    --accent-ink: #9c4f25;
    --accent-tint: #fbede3;
    --accent-border: #e7c7b2;
    --green: #4a6128;
    --paper: #fbf4e7;
  }

  body {
    background: var(--paper);
  }

  .roomos-page {
    background:
      linear-gradient(90deg, rgba(156, 79, 37, 0.08) 1px, transparent 1px),
      linear-gradient(180deg, rgba(156, 79, 37, 0.07) 1px, transparent 1px);
    background-size: 36px 36px;
  }

  .site-header {
    position: static;
    background: rgba(251, 244, 231, 0.9);
  }

  .brand-mark,
  .button-primary {
    background: linear-gradient(180deg, var(--accent), var(--accent-hover));
  }

  .brand-stack small,
  .proof-strip span,
  .lane p,
  .section-heading p,
  .artifact-list span,
  .form-status,
  .sheet-footer {
    color: var(--text-muted);
  }

  .hero {
    padding-top: 42px;
  }

  .hero h1 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 48px;
    font-weight: 500;
  }

  .hero-text {
    font-size: 16px;
  }

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

  .button {
    width: 100%;
  }

  .proof-strip,
  .run-console,
  .trace-panel,
  .model-panel,
  .receipt-panel,
  .lane,
  .artifact-list li,
  .evidence-sheet,
  .intake,
  .request-preview {
    background: rgba(251, 244, 231, 0.86);
  }

  .proof-strip {
    background: var(--line);
  }

  .proof-strip div,
  .token-grid div,
  .receipt-list li {
    background: rgba(251, 244, 231, 0.92);
  }

  .console-topbar,
  .preview-header,
  .panel-head,
  .sheet-head {
    background: var(--bg-secondary);
  }

  .console-url,
  .field input,
  .field textarea {
    color: var(--text-primary);
    background: #fff9ef;
  }

  .request-preview pre {
    min-height: 320px;
    color: #3f2b1f;
  }

  .lane-grid,
  .sheet-row {
    grid-template-columns: 1fr;
  }

  .lane {
    min-height: auto;
  }

  .lane h3 {
    margin-top: 28px;
  }

  .section h2 {
    font-size: 34px;
  }
}