/* ============================================================
   GitPlane — design tokens + components
   Brand family: shares the "Plane" visual language (rust orange
   on near-black, low-poly geometric marks, Cabinet Grotesk +
   Satoshi) established by the sibling product OxPlane.
   ============================================================ */

:root,
[data-theme='light'] {
  /* Surfaces — warm off-white, paper-like */
  --color-bg: #f7f5f1;
  --color-surface: #ffffff;
  --color-surface-2: #f2efe8;
  --color-surface-offset: #efebe3;
  --color-surface-offset-2: #e7e2d8;
  --color-surface-dynamic: #ddd6c9;
  --color-divider: #e3ddd1;
  --color-border: #ddd6c8;

  /* Text */
  --color-text: #17140f;
  --color-text-muted: #6b6459;
  --color-text-faint: #a49c8d;
  --color-text-inverse: #f7f5f1;

  /* Primary accent — rust orange (darkened for AA contrast on light bg) */
  --color-primary: #b84e12;
  --color-primary-hover: #9a3f0d;
  --color-primary-active: #7a3208;
  --color-primary-highlight: #f6dcc4;
  --color-primary-bright: #e8621a;

  /* Status */
  --color-success: #3f7a2c;
  --color-success-highlight: #dbe8d1;
  --color-error: #ad3a2e;
  --color-error-highlight: #f1d9d4;

  /* Category tags (muted, desaturated — accents stay orange-only) */
  --color-tag-bg: #efe9dd;
  --color-tag-text: #57503f;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-sm: 0 1px 2px oklch(0.25 0.02 40 / 0.08);
  --shadow-md: 0 6px 20px oklch(0.25 0.02 40 / 0.1);
  --shadow-lg: 0 20px 48px oklch(0.25 0.02 40 / 0.14);

  --content-narrow: 640px;
  --content-default: 1000px;
  --content-wide: 1240px;
  --content-full: 100%;

  --font-display: 'Cabinet Grotesk', 'Satoshi', system-ui, sans-serif;
  --font-body: 'Satoshi', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  --grid-line: oklch(from var(--color-text) l c h / 0.05);
}

[data-theme='dark'] {
  --color-bg: #0a0a0b;
  --color-surface: #121113;
  --color-surface-2: #1a1a1c;
  --color-surface-offset: #171617;
  --color-surface-offset-2: #201f21;
  --color-surface-dynamic: #29282a;
  --color-divider: #201f21;
  --color-border: #2b2a2c;

  --color-text: #eceae7;
  --color-text-muted: #9c9894;
  --color-text-faint: #625f5c;
  --color-text-inverse: #0a0a0b;

  --color-primary: #e8621a;
  --color-primary-hover: #f0824a;
  --color-primary-active: #b84010;
  --color-primary-highlight: #33241a;
  --color-primary-bright: #f09050;

  --color-success: #7bb459;
  --color-success-highlight: #253524;
  --color-error: #d9695a;
  --color-error-highlight: #372423;

  --color-tag-bg: #1e1c1a;
  --color-tag-text: #b6afa5;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.35);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.45);
  --shadow-lg: 0 24px 56px oklch(0 0 0 / 0.55);

  --grid-line: oklch(from var(--color-text) l c h / 0.055);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0a0a0b;
    --color-surface: #121113;
    --color-surface-2: #1a1a1c;
    --color-surface-offset: #171617;
    --color-surface-offset-2: #201f21;
    --color-surface-dynamic: #29282a;
    --color-divider: #201f21;
    --color-border: #2b2a2c;
    --color-text: #eceae7;
    --color-text-muted: #9c9894;
    --color-text-faint: #625f5c;
    --color-text-inverse: #0a0a0b;
    --color-primary: #e8621a;
    --color-primary-hover: #f0824a;
    --color-primary-active: #b84010;
    --color-primary-highlight: #33241a;
    --color-primary-bright: #f09050;
    --color-success: #7bb459;
    --color-success-highlight: #253524;
    --color-error: #d9695a;
    --color-error-highlight: #372423;
    --color-tag-bg: #1e1c1a;
    --color-tag-text: #b6afa5;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.35);
    --shadow-md: 0 8px 24px oklch(0 0 0 / 0.45);
    --shadow-lg: 0 24px 56px oklch(0 0 0 / 0.55);
    --grid-line: oklch(from var(--color-text) l c h / 0.055);
  }
}

/* ---------- Type scale ---------- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);
  --text-3xl: clamp(2.4rem, 1rem + 4vw, 4.4rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

/* ============================================================
   Base look
   ============================================================ */
body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
}

.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--wide {
  max-width: var(--content-wide);
}
.container--narrow {
  max-width: var(--content-narrow);
}

section {
  position: relative;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.section-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
  max-width: 22ch;
}

.section-lede {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 56ch;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  z-index: 100;
  border-radius: var(--radius-sm);
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  min-height: 44px;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive);
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(0);
  background: var(--color-primary-active);
}
.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  background: var(--color-surface-2);
  border-color: var(--color-text-faint);
}
.btn-ghost:active {
  transform: translateY(0);
}
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  min-height: 36px;
}

/* ---------- Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--grid-line);
  transition:
    transform 0.3s var(--ease-out),
    box-shadow 0.3s var(--ease-out);
}
.site-header.is-hidden {
  transform: translateY(-100%);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--text-sm);
  font-weight: 500;
}
.nav-links a {
  color: var(--color-text-muted);
}
.nav-links a:hover {
  color: var(--color-text);
}
.nav-links a.btn-primary,
.nav-links a.btn-primary:hover {
  color: #fff;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}
.nav-toggle:hover {
  background: var(--color-surface-2);
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    inset: 64px var(--space-4) auto var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    gap: var(--space-3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      opacity 0.2s var(--ease-out),
      transform 0.2s var(--ease-out),
      visibility 0.2s;
  }
  .nav-links.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-toggle {
    display: flex;
  }
  .nav-actions .btn-primary {
    display: none;
  }
}

/* ---------- Logo ---------- */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
}
.logo-mark {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}
.logo-word .word-git {
  color: var(--color-text);
}
.logo-word .word-plane {
  color: var(--color-primary);
}

/* ============================================================
   Backdrop — dot grid + glow orbs (used sparingly, hero + CTA only)
   ============================================================ */
.grid-backdrop {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(to bottom, black, transparent);
  pointer-events: none;
}
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  opacity: 0.5;
}
[data-theme='light'] .glow-orb,
:root:not([data-theme]) .glow-orb {
  opacity: 0.22;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .glow-orb {
    opacity: 0.22;
  }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24)) clamp(var(--space-12), 8vw, var(--space-20));
  overflow: hidden;
}
.hero-orb-1 {
  width: 460px;
  height: 460px;
  top: -160px;
  right: -120px;
  background: radial-gradient(circle, var(--color-primary-bright), var(--color-primary-active) 70%, transparent 100%);
}
.hero-orb-2 {
  width: 320px;
  height: 320px;
  top: 220px;
  left: -140px;
  background: radial-gradient(circle, var(--color-primary-active), transparent 75%);
}
.hero-inner {
  position: relative;
  display: grid;
  gap: var(--space-12);
}
@media (min-width: 1040px) {
  .hero-inner {
    grid-template-columns: 1.05fr 1fr;
    align-items: start;
  }
}
.hero-copy {
  max-width: 780px;
}
.hero-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.04;
  margin-bottom: var(--space-6);
}
.hero-title .accent {
  color: var(--color-primary);
}
.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 62ch;
  margin-bottom: var(--space-8);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}
.hero-fineprint {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
}
.hero-visuals-grid {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
  align-items: center;
}

/* ---------- Terminal ---------- */
.terminal {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-width: 560px;
}
[data-theme='dark'] .terminal,
:root:not([data-theme]) .terminal {
  box-shadow: var(--shadow-lg), 0 0 60px oklch(from var(--color-primary) l c h / 0.12);
  border-color: oklch(from var(--color-primary) l c h / 0.25);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}
.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-text-faint);
}
.terminal-title {
  margin-left: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.terminal-body {
  padding: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  min-height: 220px;
  line-height: 1.9;
}
.terminal-line {
  display: block;
  color: var(--color-text-muted);
}
.terminal-line .prompt {
  color: var(--color-primary);
  margin-right: var(--space-2);
}
.terminal-line .cmd {
  color: var(--color-text);
}
.terminal-line .ok {
  color: var(--color-success);
}
.terminal-line .tag {
  color: var(--color-primary-bright);
}
.cursor-blink {
  display: inline-block;
  width: 0.55em;
  height: 1em;
  background: var(--color-primary);
  vertical-align: -0.15em;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* ============================================================
   Diagram — hub & spoke unbundling map
   ============================================================ */
.diagram-wrap {
  position: relative;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1 / 1;
  margin-inline: auto;
}
.diagram-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.diagram-svg line {
  stroke: var(--color-border);
  stroke-width: 1.5;
}
.diagram-svg .live {
  stroke: var(--color-primary);
  stroke-dasharray: 4 5;
  animation: dash-flow 3.5s linear infinite;
}
@keyframes dash-flow {
  to {
    stroke-dashoffset: -90;
  }
}
.diagram-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  text-align: center;
}
.diagram-hub {
  width: 132px;
  height: 132px;
  clip-path: polygon(25% 3%, 75% 3%, 97% 50%, 75% 97%, 25% 97%, 3% 50%);
  background: linear-gradient(155deg, var(--color-primary), var(--color-primary-active));
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  box-shadow: var(--shadow-lg);
  line-height: 1.2;
  padding: var(--space-2);
}
.diagram-hub small {
  display: block;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-top: 2px;
}
.diagram-chip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}
.diagram-chip span {
  display: block;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--color-text-faint);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

/* ============================================================
   Manifesto / thesis
   ============================================================ */
.manifesto {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
  background: var(--color-surface-offset);
}
.manifesto-grid {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .manifesto-grid {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
  }
}
.manifesto-copy p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  font-size: var(--text-base);
}
.manifesto-copy p:first-of-type {
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: 500;
}

/* ---------- Pillar grid ---------- */
.pillar-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 600px) {
  .pillar-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.pillar-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--space-6);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.pillar-card.is-featured {
  border-color: oklch(from var(--color-primary) l c h / 0.4);
  background: linear-gradient(160deg, var(--color-primary-highlight), var(--color-surface) 60%);
}
.pillar-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
}
.pillar-card h4 {
  font-size: var(--text-base);
  font-weight: 600;
}
.pillar-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ============================================================
   Reliability
   ============================================================ */
.reliability {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
}
.reliability-grid {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .reliability-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}
.reliability-stats {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(3, 1fr);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface-offset);
  padding: var(--space-6);
}
@media (max-width: 520px) {
  .reliability-stats {
    grid-template-columns: 1fr;
  }
}
.reliability-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  text-align: center;
}
.reliability-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}
.reliability-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.reliability .section-title + .section-lede {
  margin-bottom: var(--space-6);
}

/* ============================================================
   What's next
   ============================================================ */
.next {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
  background: var(--color-surface-offset);
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}
.next-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .next-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.next-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.next-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.next-card a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: var(--color-primary-highlight);
}
.next-intro {
  margin-bottom: var(--space-10);
}

/* ============================================================
   Core features
   ============================================================ */
.core {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
}
.core-grid {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .core-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}
.core-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.core-item {
  display: flex;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}
.core-item:first-child {
  padding-top: 0;
}
.core-index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  padding-top: 2px;
  flex-shrink: 0;
  width: 2ch;
}
.core-item h4 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.core-item p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.core .section-title + .section-lede {
  margin-bottom: var(--space-8);
}
.core-visual {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface-offset);
  padding: var(--space-6);
}
.core-visual-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider);
  font-size: var(--text-sm);
}
.core-visual-row:last-child {
  border-bottom: none;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
}
.pill.pill-live {
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}
.pill.pill-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ============================================================
   Ecosystem — partner categories (bento, asymmetric)
   ============================================================ */
.ecosystem {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
  background: var(--color-surface-offset);
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}
.ecosystem-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-6);
  align-items: flex-end;
  margin-bottom: var(--space-10);
}
.eco-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .eco-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1100px) {
  .eco-grid {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 1fr;
  }
  .eco-card.span-4 {
    grid-column: span 4;
  }
  .eco-card.span-3 {
    grid-column: span 3;
  }
  .eco-card.span-2 {
    grid-column: span 2;
  }
}
.eco-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.eco-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.eco-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.eco-card h4 {
  font-size: var(--text-base);
  font-weight: 600;
}
.eco-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  flex-grow: 1;
}
.eco-partners {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.eco-partner {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-surface-offset-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.eco-or {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  align-self: center;
}

.compare-source {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-3);
}
.compare-source a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-decoration-color: var(--color-divider);
}
.compare-source a:hover {
  color: var(--color-primary);
}

/* ============================================================
   Pricing
   ============================================================ */
.pricing {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
  background: var(--color-surface-offset);
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}
.pricing-grid {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .pricing-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}
.price-card {
  border-radius: var(--radius-xl);
  border: 1px solid oklch(from var(--color-primary) l c h / 0.35);
  background: linear-gradient(165deg, var(--color-primary-highlight), var(--color-surface) 55%);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}
.price-card .eyebrow {
  margin-bottom: var(--space-3);
}
.price-tag {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}
.price-amount {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
}
.price-unit {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}
.price-desc {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  max-width: 40ch;
}
.price-features {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}
.price-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
}
.price-features li::before {
  content: '✓';
  color: var(--color-primary);
  font-family: var(--font-mono);
  flex-shrink: 0;
}
.pricing-side h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.pricing-side p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}
.pricing-faq {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-4);
}
.pricing-faq:last-child {
  border-bottom: 1px solid var(--color-divider);
}
.pricing-faq h5 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.pricing-faq p {
  font-size: var(--text-sm);
  margin: 0;
}

/* ============================================================
   CTA
   ============================================================ */
.cta {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
  overflow: hidden;
}
.cta .section-title {
  font-size: var(--text-2xl);
  max-width: none;
}
.cta-inner {
  position: relative;
  text-align: left;
  max-width: 680px;
}
.cta-form {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-6);
}
.cta-input {
  flex: 1;
  min-width: 220px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-sm);
}
.cta-input:focus-visible {
  border-color: var(--color-primary);
}
.cta-status {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  min-height: 1.4em;
}
.cta-status.is-success {
  color: var(--color-success);
}
.cta-status.is-error {
  color: var(--color-error);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--grid-line);
  padding-block: var(--space-12) var(--space-8);
}
.footer-grid {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-10);
}
@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
  }
}
.footer-brand p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 32ch;
  margin-top: var(--space-3);
}
.footer-col h5 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
  font-family: var(--font-mono);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.footer-col a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.badge-rust {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.badge-rust::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ============================================================
   Reveal on scroll
   js-reveal is added by JS; without it .reveal elements are
   always visible (no-JS safe, no FOUC).
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  .js-reveal .reveal {
    opacity: 0;
    translate: 0 10px;
    transition: opacity 0.5s ease, translate 0.5s ease;
  }
  .js-reveal .reveal.is-visible {
    opacity: 1;
    translate: none;
  }
}

/* ---------- Responsive: hero + mobile tuning ---------- */
@media (max-width: 899px) {
  .hero-title {
    font-size: clamp(2.2rem, 8vw, 3rem);
  }
}
@media (max-width: 480px) {
  .diagram-chip {
    font-size: 0.65rem;
    padding: var(--space-1) var(--space-2);
  }
  .diagram-hub {
    width: 100px;
    height: 100px;
    font-size: 0.75rem;
  }
}