:root {
  --bg: #0f0d0c;
  --bg-strong: #171311;
  --bg-panel: #1d1916;
  --bg-code: #14110f;
  --bg-surface: #27211d;
  --border: #433a34;
  --border-soft: #2a241f;

  --text: #e4ddd6;
  --text-dim: #b7afa8;
  --text-soft: #8d847b;
  --heading: #fbf7f2;

  --accent: #c9863b;
  --accent-bright: #e1a353;
  --accent-soft: rgba(201, 134, 59, 0.16);
  --teal: #4aa39a;
  --green: #5bb57f;
  --red: #d87878;
  --yellow: #d7b05a;

  --paper: #fbf7f1;
  --paper-line: #ddd5cc;
  --paper-text: #231f1c;
  --paper-dim: #756c63;

  --shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
  --radius: 14px;
  --max-width: 1180px;
  --gutter: clamp(16px, 4vw, 40px);

  --text-xs: clamp(0.75rem, 0.72rem + 0.1vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.15vw, 0.9375rem);
  --text-base: clamp(0.98rem, 0.95rem + 0.18vw, 1.04rem);
  --text-lg: clamp(1.08rem, 1rem + 0.35vw, 1.2rem);
  --text-xl: clamp(1.35rem, 1.18rem + 0.75vw, 1.7rem);
  --text-2xl: clamp(1.9rem, 1.5rem + 1.7vw, 2.8rem);
  --text-3xl: clamp(2.8rem, 2rem + 4.4vw, 5.6rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 0.55s;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration: 0.01s;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(201, 134, 59, 0.12), transparent 30%),
    radial-gradient(circle at 100% 0%, rgba(74, 163, 154, 0.11), transparent 28%),
    linear-gradient(180deg, #120f0d, var(--bg));
  color: var(--text);
  font: 400 var(--text-base)/1.68 "IBM Plex Sans", "Avenir Next", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-bright);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100%;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 0 0 8px 8px;
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--heading);
  font-family: "Fraunces", "Georgia", serif;
  letter-spacing: -0.03em;
  line-height: 1.06;
}

h1 {
  font-size: var(--text-3xl);
  font-weight: 800;
}

h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: 1rem;
}

h3 {
  font-size: var(--text-xl);
  font-weight: 700;
}

h4 {
  font-size: var(--text-lg);
  font-weight: 700;
}

p {
  margin: 0 0 1rem;
}

pre,
code {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

code {
  font-size: 0.94em;
}

pre {
  margin: 0;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 13, 12, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}

.nav-inner,
.container,
.footer-inner,
.footer-copy {
  width: min(var(--max-width), calc(100vw - 2 * var(--gutter)));
  margin: 0 auto;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
}

.nav-logo {
  font: 700 1.25rem/1 "JetBrains Mono", monospace;
  color: var(--heading);
  margin-right: 20px;
}

.nav-logo span {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  padding: 8px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 1.35rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.nav-links a {
  padding: 7px 12px;
  border-radius: 8px;
  color: var(--text-dim);
  font-size: var(--text-xs);
  font-weight: 600;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--heading);
  background: var(--bg-surface);
}

.container {
  padding: 0 var(--gutter);
}

.section {
  padding: clamp(44px, 6vw, 76px) 0;
  border-top: 1px solid var(--border-soft);
}

.section:first-of-type {
  border-top: none;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.8rem;
  color: var(--accent);
  font: 600 var(--text-xs)/1 "JetBrains Mono", monospace;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.section-intro {
  max-width: 720px;
  color: var(--text-dim);
  font-size: var(--text-lg);
}

.hero {
  position: relative;
  padding: clamp(56px, 10vw, 104px) 0 clamp(44px, 6vw, 72px);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(201, 134, 59, 0.08), transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  margin-bottom: 1rem;
  color: var(--accent);
  font: 600 var(--text-xs)/1 "JetBrains Mono", monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-title span {
  color: var(--accent);
  font-style: italic;
}

.hero-desc {
  max-width: 660px;
  margin-bottom: 2rem;
  color: var(--text-dim);
  font-size: var(--text-lg);
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 9px;
  border: 1px solid transparent;
  font-size: var(--text-sm);
  font-weight: 600;
  transition:
    transform 180ms var(--ease),
    border-color 180ms var(--ease),
    background 180ms var(--ease),
    color 180ms var(--ease);
}

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

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--accent-bright);
  color: var(--bg);
}

.btn-secondary,
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-secondary:hover,
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-small {
  min-height: 34px;
  padding: 0 12px;
  font-size: var(--text-xs);
}

.card,
.feature-cell,
.workflow-node,
.pill-row .pill,
.api-entry,
.playground-shell,
.install-block,
.vision-step,
.spec-entry {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.workflow-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.workflow-node {
  min-width: 180px;
  padding: 18px 20px;
  border-radius: 12px;
}

.workflow-node-ext,
.workflow-node-title,
.pill-label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--accent);
  font: 600 var(--text-xs)/1 "JetBrains Mono", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.workflow-node-label,
.workflow-node-sub {
  color: var(--text);
  font-weight: 600;
}

.workflow-arrow {
  color: var(--text-soft);
  font-size: 1.35rem;
}

.code-output {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  margin: 1.5rem 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-code);
}

.code-output-code,
.code-output-result {
  min-width: 0;
}

.code-output-code {
  padding: 22px 24px;
  border-right: 1px solid var(--border);
}

.code-output-code pre,
.api-entry-body pre,
.spec-entry pre,
.hero-demo-code pre,
.detail-pane pre {
  border-radius: 10px;
  background: #0f0d0c;
  padding: 16px 18px;
  border: 1px solid #2f2823;
  color: var(--text);
}

.code-output-result {
  padding: 24px 26px;
  background: var(--paper);
  color: var(--paper-text);
}

.code-output-label,
.result-label,
.pane-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--text-soft);
  font: 600 10px/1 "JetBrains Mono", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.code-output-label::before,
.result-label::before,
.pane-label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.result-label {
  color: var(--paper-dim);
}

.result-label::before {
  background: var(--green);
}

.word-page {
  background: #efe8df;
  padding: 16px;
  border-radius: 12px;
}

.word-body {
  min-height: 120px;
  border: 1px solid var(--paper-line);
  background: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  padding: 28px 32px;
  color: #222;
  font: 400 14px/1.58 Calibri, "Segoe UI", sans-serif;
}

.word-body p {
  margin: 0 0 10px;
}

.word-body h1,
.word-body h2,
.word-body h3 {
  margin: 0 0 10px;
  color: #111;
  font-family: Georgia, serif;
}

.word-body h1 {
  font-size: 1.6rem;
}

.word-body h2 {
  font-size: 1.2rem;
}

.word-del {
  color: var(--red);
  text-decoration: line-through;
}

.word-ins {
  color: var(--green);
}

.word-callout {
  display: inline-flex;
  margin-left: 8px;
  padding: 2px 7px;
  border-radius: 999px;
  background: #f9ebc7;
  color: #7a5600;
  font-size: 11px;
  vertical-align: middle;
}

.word-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.word-table th,
.word-table td {
  padding: 8px 10px;
  border: 1px solid #cfc4b7;
  text-align: left;
}

.word-table th {
  background: #f5efe8;
}

.hero-demo {
  display: grid;
  gap: 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-code);
}

.hero-demo-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}

.hero-demo-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--accent);
  opacity: 0.7;
}

.hero-demo-title {
  color: var(--text-soft);
  font: 600 var(--text-xs)/1 "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-demo-panes,
.detail-grid,
.playground-layout,
.docs-grid,
.vision-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
}

.hero-demo-code,
.hero-demo-preview,
.detail-pane,
.playground-panel,
.docs-main,
.docs-side {
  min-width: 0;
}

.hero-demo-code,
.detail-pane--code,
.playground-panel--editor {
  padding: 18px 20px;
  border-right: 1px solid var(--border);
}

.hero-demo-preview,
.detail-pane--paper,
.playground-panel--preview {
  padding: 18px 20px;
  background: var(--paper);
}

.hero-demo-preview .word-page,
.detail-pane--paper .word-page,
.playground-panel--preview .word-page {
  padding: 0;
  background: transparent;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 1rem 0 0;
}

.pill-row .pill {
  padding: 12px 14px;
  border-radius: 12px;
  min-width: 140px;
}

.pill strong {
  display: block;
  color: var(--heading);
  font-size: 1.1rem;
}

.pill span {
  color: var(--text-soft);
  font-size: var(--text-xs);
}

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

.feature-cell {
  padding: 18px 20px;
  border-radius: 12px;
}

.feature-tag {
  display: inline-block;
  margin-bottom: 0.8rem;
  color: var(--accent);
  font: 600 var(--text-xs)/1 "JetBrains Mono", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.feature-cell p,
.card p,
.spec-entry p,
.api-entry p,
.vision-step p {
  color: var(--text-dim);
}

.api-entry,
.spec-entry,
.install-block {
  border-radius: 14px;
  padding: 20px 22px;
}

.api-entry-header {
  margin-bottom: 14px;
  color: var(--heading);
  font: 600 var(--text-sm)/1.4 "JetBrains Mono", monospace;
}

.docs-grid {
  gap: 18px;
  align-items: start;
}

.docs-main {
  display: grid;
  gap: 18px;
}

.docs-side {
  display: grid;
  gap: 18px;
}

.card {
  border-radius: 14px;
  padding: 18px 20px;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

th,
td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

th {
  color: var(--text-soft);
  font: 600 var(--text-xs)/1.4 "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.delta-list,
.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.delta-list li,
.link-list li {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-soft);
}

.delta-list li:last-child,
.link-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.delta-list strong,
.link-list a {
  color: var(--heading);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 1rem 0 1.3rem;
}

.tag {
  padding: 7px 11px;
  border-radius: 999px;
  font: 600 var(--text-xs)/1 "JetBrains Mono", monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border);
}

.tag-green {
  color: #7fd19a;
  background: rgba(91, 181, 127, 0.12);
}

.tag-teal {
  color: #87d7d0;
  background: rgba(74, 163, 154, 0.12);
}

.tag-amber {
  color: #f0c176;
  background: rgba(201, 134, 59, 0.14);
}

.install-command {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 1rem;
  padding: 12px 14px;
  border-radius: 10px;
  background: #100d0b;
  border: 1px solid #2f2823;
}

.install-command code {
  color: var(--text);
  overflow-wrap: anywhere;
}

.install-detail {
  margin-top: 0.9rem;
  color: var(--text-soft);
  font-size: var(--text-sm);
}

.playground-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.playground-shell {
  border-radius: 14px;
  padding: 18px;
}

.playground-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 16px;
}

.playground-panel {
  min-width: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.playground-panel--editor {
  background: var(--bg-code);
}

.playground-panel--preview {
  background: var(--bg-panel);
  padding: 0;
}

.playground-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}

.playground-status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-soft);
  font: 600 var(--text-xs)/1 "JetBrains Mono", monospace;
}

.status-chip.ok {
  color: #8bd1a2;
}

.status-chip.warn {
  color: #f0c176;
}

.playground-note {
  margin-top: 0.9rem;
  color: var(--text-soft);
  font-size: var(--text-sm);
}

#playgroundInput {
  width: 100%;
  min-height: 680px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  resize: vertical;
  font: 400 0.88rem/1.7 "JetBrains Mono", monospace;
}

.playground-editor-frame {
  border-radius: 10px;
  background: #100d0b;
  border: 1px solid #2f2823;
  padding: 16px 18px;
}

.playground-preview-wrap {
  padding: 18px;
  background: var(--paper);
}

.preview-lines {
  display: grid;
  gap: 10px;
  max-height: 500px;
  overflow: auto;
}

.preview-line {
  border-radius: 10px;
  padding: 10px 12px;
  border: 1px solid #d6cbbd;
  background: #fff;
}

.preview-line.changed {
  border-color: #d6b27c;
  background: #fff7ec;
}

.preview-line.inserted {
  border-color: #98d2cb;
  background: #f1fbfa;
}

.preview-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 0.45rem;
}

.preview-chip {
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid #dbcfc1;
  color: var(--paper-dim);
  font: 600 10px/1 "JetBrains Mono", monospace;
  letter-spacing: 0.06em;
}

.preview-line p {
  margin: 0;
  color: var(--paper-text);
}

.preview-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 0.5rem;
}

.preview-notes span {
  padding: 3px 8px;
  border-radius: 999px;
  background: #efe5d8;
  color: #7d6553;
  font: 600 10px/1 "JetBrains Mono", monospace;
}

.playground-meta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.playground-empty {
  color: var(--text-soft);
}

.playground-errors {
  margin: 0;
  padding-left: 1rem;
  color: var(--text-dim);
  display: grid;
  gap: 8px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.tab-btn {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-size: var(--text-xs);
  font-weight: 600;
}

.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.vision-step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 18px 20px;
  border-radius: 14px;
}

.vision-step-num {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent-bright);
  font: 700 1rem/1 "JetBrains Mono", monospace;
}

.vision-step-content pre {
  margin: 0.8rem 0;
}

.footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--border-soft);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  color: var(--heading);
  font: 700 1.1rem/1 "JetBrains Mono", monospace;
}

.footer-brand span {
  color: var(--accent);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.footer-links a {
  color: var(--text-dim);
  font-size: var(--text-sm);
}

.footer-copy {
  padding: 12px var(--gutter) 0;
  color: var(--text-soft);
  font-size: var(--text-sm);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity var(--duration) var(--ease),
    transform var(--duration) var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

@media (max-width: 920px) {
  .hero-demo-panes,
  .code-output,
  .detail-grid,
  .playground-layout,
  .docs-grid,
  .vision-grid,
  .playground-meta-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-demo-code,
  .detail-pane--code,
  .playground-panel--editor,
  .code-output-code {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  #playgroundInput {
    min-height: 380px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 58px;
    left: 0;
    right: 0;
    padding: 10px 16px 16px;
    background: var(--bg-strong);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
  }

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

  .nav-links a {
    padding: 10px 12px;
  }

  .pill-row .pill,
  .workflow-node {
    min-width: 0;
  }

  .hero-actions,
  .workflow-diagram,
  .footer-inner {
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-title {
    max-width: 10ch;
  }
}