:root {
  color-scheme: dark;

  /* Surfaces */
  --bg: #08080a;
  --bg-soft: #0c0c0f;
  --panel: #101014;
  --panel-2: #16161b;
  --panel-3: #1c1c22;

  /* Lines */
  --line: #24242c;
  --line-soft: #1a1a20;
  --line-strong: #303039;

  /* Text */
  --text: #ededf0;
  --text-dim: #c2c2cb;
  --muted: #8b8b96;
  --faint: #6a6a74;

  /* Accent (Rust orange) */
  --accent: #f97316;
  --accent-soft: #fb923c;
  --accent-dim: rgba(249, 115, 22, 0.12);
  --accent-line: rgba(249, 115, 22, 0.32);

  /* Terminal semantic */
  --term-prompt: #7dd3fc;
  --term-ok: #4ade80;
  --term-warn: #fbbf24;
  --term-muted: #71717a;

  --radius: 10px;
  --radius-sm: 7px;
  --shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.7);
  --maxw: 1120px;

  --font-sans:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-mono:
    "JetBrains Mono", "IBM Plex Mono", "Fira Code", ui-monospace,
    SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(
      900px 480px at 78% -8%,
      rgba(249, 115, 22, 0.08),
      transparent 70%
    ),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

code,
pre,
kbd {
  font-family: var(--font-mono);
}

::selection {
  background: rgba(249, 115, 22, 0.3);
  color: #fff;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(8, 8, 10, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 650;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.brand-mark {
  width: 1.7rem;
  height: 1.7rem;
  display: block;
  object-fit: contain;
}

.brand-version {
  margin-left: 0.15rem;
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.65rem;
  margin-left: auto;
  font-size: 0.92rem;
  color: var(--muted);
}

.nav a {
  transition: color 0.15s ease;
}

.nav a:hover {
  color: var(--text);
}

.nav-sep {
  width: 1px;
  height: 1.25rem;
  background: var(--line);
}

.ghbtn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 550;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.ghbtn:hover {
  border-color: var(--accent-line);
  background: var(--accent-dim);
}

.ghbtn svg {
  width: 1.05rem;
  height: 1.05rem;
}

/* ---------- Buttons ---------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 2.85rem;
  padding: 0 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease,
    border-color 0.15s ease;
}

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

.button.primary {
  background: var(--accent);
  color: #160a02;
  box-shadow: 0 8px 24px -8px rgba(249, 115, 22, 0.55);
}

.button.primary:hover {
  background: var(--accent-soft);
}

.button.secondary {
  color: var(--text);
  border-color: var(--line-strong);
  background: var(--panel);
}

.button.secondary:hover {
  border-color: var(--muted);
  background: var(--panel-2);
}

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.4rem;
  padding: 0.32rem 0.75rem;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent-soft);
  font-size: 0.78rem;
  font-weight: 550;
  letter-spacing: 0.01em;
}

.eyebrow .dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.18);
}

h1,
h2,
h3 {
  margin-top: 0;
  letter-spacing: -0.025em;
  color: var(--text);
}

h1 {
  margin-bottom: 1.15rem;
  font-size: clamp(2.6rem, 5.5vw, 4rem);
  line-height: 1.04;
  font-weight: 700;
}

h1 .grad {
  background: linear-gradient(120deg, #fff, var(--accent-soft));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lede {
  max-width: 34rem;
  margin-bottom: 0.6rem;
  color: var(--text-dim);
  font-size: clamp(1.05rem, 1.8vw, 1.22rem);
  line-height: 1.55;
}

.sublede {
  max-width: 34rem;
  color: var(--muted);
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.9rem 0 1.4rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  font-size: 0.85rem;
  color: var(--faint);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-meta b {
  color: var(--text-dim);
  font-weight: 600;
}

/* ---------- Terminal preview ---------- */
.terminal-window {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.terminal-window::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  height: 2.6rem;
  padding: 0 0.9rem;
  border-bottom: 1px solid var(--line-soft);
  background: var(--panel);
}

.terminal-bar span {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: var(--line-strong);
}

.terminal-bar span:nth-child(1) {
  background: #ff5f57;
}
.terminal-bar span:nth-child(2) {
  background: #febc2e;
}
.terminal-bar span:nth-child(3) {
  background: #28c840;
}

.terminal-bar strong {
  margin-left: auto;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
}

.terminal-body {
  padding: 1.25rem 1.35rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.75;
}

.terminal-body p {
  margin: 0 0 0.28rem;
  overflow-wrap: anywhere;
  color: var(--text-dim);
}

.prompt {
  color: var(--term-prompt);
}
.muted {
  color: var(--term-muted);
}
.accent {
  color: var(--term-warn);
}
.success {
  color: var(--term-ok);
}

.cursor {
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Install command ---------- */
.cmd {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 30rem;
  margin-top: 1.4rem;
  padding: 0.7rem 0.7rem 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
}

.cmd code {
  flex: 1;
  font-size: 0.88rem;
  color: var(--text);
  white-space: nowrap;
  overflow-x: auto;
}

.cmd code::before {
  content: "$ ";
  color: var(--accent);
}

.copy-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.copy-btn:hover {
  color: var(--text);
  border-color: var(--muted);
}

.copy-btn.copied {
  color: var(--term-ok);
  border-color: rgba(74, 222, 128, 0.4);
}

.copy-btn svg {
  width: 0.95rem;
  height: 0.95rem;
}

/* ---------- Section scaffolding ---------- */
.section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
  border-top: 1px solid var(--line-soft);
}

.section-head {
  max-width: 42rem;
  margin-bottom: 2.5rem;
}

.kicker {
  margin: 0 0 0.8rem;
  color: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 1.1;
  font-weight: 680;
}

.section-head p {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

/* ---------- Badges strip ---------- */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.badge .b-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--accent);
}

/* ---------- Feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color 0.18s ease, transform 0.18s ease,
    background 0.18s ease;
}

.card:hover {
  border-color: var(--line-strong);
  background: var(--panel-2);
  transform: translateY(-2px);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  margin-bottom: 1.1rem;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  color: var(--accent-soft);
}

.card-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.08rem;
  font-weight: 620;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card code {
  padding: 0.08rem 0.32rem;
  border-radius: 4px;
  background: var(--panel-3);
  color: var(--accent-soft);
  font-size: 0.86em;
}

/* ---------- Split / architecture ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.split .copy p {
  color: var(--text-dim);
  font-size: 1.05rem;
}

.split .copy p + p {
  margin-top: 1rem;
  color: var(--muted);
}

.arch-diagram {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

.arch-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.35rem;
}

.arch-row + .arch-row {
  border-top: 1px solid var(--line-soft);
}

.arch-tag {
  flex-shrink: 0;
  width: 7.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-soft);
}

.arch-row p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.arch-row strong {
  display: block;
  color: var(--text);
  font-weight: 600;
  font-size: 0.96rem;
}

/* ---------- Workflow / pipeline ---------- */
.pipeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.step {
  position: relative;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  margin-bottom: 1rem;
  border-radius: 999px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-line);
  color: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
}

.step strong {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 1rem;
  color: var(--text);
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.step code {
  color: var(--accent-soft);
}

/* ---------- Code blocks ---------- */
pre {
  position: relative;
  overflow-x: auto;
  margin: 0;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text-dim);
  font-size: 0.86rem;
  line-height: 1.75;
}

pre code {
  color: inherit;
}

p code,
li code {
  padding: 0.1rem 0.36rem;
  border-radius: 4px;
  background: var(--panel-3);
  color: var(--accent-soft);
  font-size: 0.88em;
}

/* ---------- Start / CTA section ---------- */
.start {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.cta-panel {
  margin-top: clamp(3.5rem, 7vw, 5rem);
  padding: clamp(2.5rem, 5vw, 3.5rem);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius);
  background:
    radial-gradient(
      600px 200px at 50% 0%,
      rgba(249, 115, 22, 0.1),
      transparent 70%
    ),
    var(--panel);
  text-align: center;
}

.cta-panel h2 {
  margin-bottom: 0.75rem;
}

.cta-panel p {
  max-width: 36rem;
  margin: 0 auto 1.75rem;
  color: var(--muted);
}

.cta-panel .hero-actions {
  justify-content: center;
  margin: 0;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line-soft);
  background: var(--bg-soft);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding: 3rem 0 2.5rem;
}

.footer-brand .brand {
  margin-bottom: 0.8rem;
}

.footer-brand p {
  max-width: 22rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-col h4 {
  margin: 0 0 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--faint);
}

.footer-col a {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line-soft);
  color: var(--faint);
  font-size: 0.85rem;
}

/* ---------- Docs ---------- */
.docs-layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  padding: 2.5rem 0 5rem;
}

.docs-sidebar {
  position: sticky;
  top: 5.5rem;
  align-self: start;
  display: grid;
  gap: 0.15rem;
}

.docs-sidebar a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.15s ease, background 0.15s ease;
}

.docs-sidebar a:hover {
  color: var(--text);
  background: var(--panel);
}

.docs-content {
  max-width: 52rem;
}

.docs-hero {
  padding: 0 0 1rem;
}

.docs-hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.2rem);
}

.doc-section {
  padding: clamp(2.25rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--line-soft);
}

.doc-section h2 {
  margin-bottom: 0.9rem;
  font-size: clamp(1.5rem, 2.6vw, 1.9rem);
}

.doc-section h3 {
  margin: 1.6rem 0 0.6rem;
  font-size: 1.1rem;
  font-weight: 620;
}

.doc-section p,
.doc-section li {
  color: var(--muted);
  line-height: 1.7;
}

.doc-section pre {
  margin: 1.1rem 0;
}

.doc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.doc-grid .card {
  background: var(--panel);
}

.doc-grid h3 {
  margin: 0 0 0.5rem;
}

.doc-grid p {
  font-size: 0.92rem;
}

.callout {
  margin: 1.25rem 0;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--accent-line);
  border-left-width: 3px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
}

.callout strong {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--accent-soft);
}

.callout p {
  margin: 0;
  color: var(--text-dim);
}

.steps {
  display: grid;
  gap: 0.6rem;
  padding-left: 1.3rem;
}

.steps strong {
  color: var(--text);
}

.reference-list {
  display: grid;
  gap: 0.6rem;
  margin-top: 1rem;
}

.reference-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.reference-list a:hover {
  border-color: var(--accent-line);
  background: var(--panel-2);
}

.reference-list a::after {
  content: "→";
  color: var(--accent);
}

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero,
  .split,
  .start {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .pipeline,
  .doc-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }

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

  .docs-sidebar {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line-soft);
  }

  .docs-sidebar a {
    border-left: 0;
    border: 1px solid var(--line);
  }
}

@media (max-width: 720px) {
  .nav .nav-link {
    display: none;
  }
}

@media (max-width: 560px) {
  .feature-grid,
  .pipeline,
  .doc-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

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

  .arch-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }
}