/* =========================================================================
   ghostbrain — promo site
   design tokens + section styles, no framework
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

@font-face {
  font-family: 'Google Sans Flex';
  src: url('fonts/GoogleSansFlex-VariableFont_GRAD_ROND_opsz_slnt_wdth_wght.ttf') format('truetype-variations');
  font-weight: 100 1000;
  font-style: oblique -15deg 0deg;
  font-display: swap;
}

:root {
  --bg-paper:   #0E0F12;
  --bg-vellum:  #15171B;
  --bg-fog:     #1E2026;
  --ink-0:      #F2F3F5;
  --ink-1:      #B7BAC2;
  --ink-2:      #7A7E88;
  --ink-3:      #4A4D55;

  --neon:       #C5FF3D;
  --neon-dark:  #9CD420;
  --neon-mist:  #1F2A0A;
  --oxblood:    #FF6B5A;
  --moss:       #5C7C4F;

  --hairline:   rgba(242, 243, 245, 0.08);
  --hairline-2: rgba(242, 243, 245, 0.14);
  --hairline-3: rgba(242, 243, 245, 0.22);

  --font-display: 'Google Sans Flex', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-body:    'Google Sans Flex', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --shadow-sheet: 0 1px 0 rgba(0,0,0,0.30), 0 1px 2px rgba(0,0,0,0.40);
  --shadow-card:  0 2px 4px rgba(0,0,0,0.30), 0 12px 24px rgba(0,0,0,0.45);
  --shadow-float: 0 16px 40px rgba(0,0,0,0.55), 0 2px 6px rgba(0,0,0,0.40);

  --dur-fast: 120ms;
  --dur-base: 220ms;
  --dur-slow: 420ms;
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-io:  cubic-bezier(0.4, 0, 0.2, 1);
}

/* -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-paper);
  color: var(--ink-0);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font-family: var(--font-body); }
img { display: block; }
::selection { background: var(--neon); color: var(--bg-paper); }
section { scroll-margin-top: 80px; }

/* ----- common type primitives ----- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  display: inline-block;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--neon-mist);
  color: var(--neon);
}
.tag.outline {
  background: transparent;
  color: var(--ink-1);
  border: 1px solid var(--hairline-2);
}

/* ----- buttons ----- */
.btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  padding: 11px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
}
.btn--large  { padding: 14px 22px; font-size: 15px; }
.btn--small  { padding: 8px 12px; font-size: 13px; }

.btn--primary   { background: var(--ink-0); color: var(--bg-paper); }
.btn--primary:hover { background: #fff; }
.btn--secondary { background: transparent; color: var(--ink-0); border-color: var(--hairline-2); }
.btn--secondary:hover { background: var(--bg-vellum); }
.btn--ghost     { background: transparent; color: var(--ink-0); }
.btn--ghost:hover { background: var(--bg-vellum); }
.btn--accent    { background: var(--neon); color: var(--bg-paper); }
.btn--accent:hover { background: var(--neon-dark); }
.btn:active { opacity: 0.85; }

.btn .icon { width: 16px; height: 16px; display: inline-block; }
.btn--small .icon { width: 14px; height: 14px; }

/* ----- noise & dotgrid utility ----- */
.noise { position: relative; isolation: isolate; }
.noise::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.04;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ----- ghost float keyframes ----- */
@keyframes gb-float {
  0%, 100% { transform: translateY(-2px); }
  50%      { transform: translateY(2px); }
}
.floating { animation: gb-float 4s var(--ease-io) infinite; }

/* =========================================================================
   NAV
   ========================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--dur-base) var(--ease-out),
              backdrop-filter var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.nav--scrolled {
  background: rgba(14, 15, 18, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom-color: var(--hairline);
}
.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  line-height: 1;
  color: var(--ink-0);
  letter-spacing: -0.02em;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--ink-1);
}
.nav__links a { transition: color var(--dur-fast) var(--ease-out); }
.nav__links a:hover { color: var(--ink-0); }
.nav__cta {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__github {
  padding: 8px 10px;
  color: var(--ink-1);
}
.nav__github:hover { color: var(--ink-0); }
.nav__github svg { display: block; }

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
  position: relative;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  top: 50%;
  right: -10%;
  width: 600px;
  height: 600px;
  transform: translateY(-50%);
  background: radial-gradient(circle, rgba(197,255,61,0.06) 0%, rgba(197,255,61,0) 60%);
  pointer-events: none;
  z-index: 0;
}
.hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 88px 32px 96px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.hero__headline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.8rem, 6.4vw, 5.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ink-0);
  margin: 0;
}
.hero__headline .accent { color: var(--neon); }
.hero__sub {
  font-family: var(--font-body);
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink-1);
  max-width: 52ch;
  margin: 28px 0 36px;
}
.hero__ctas {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.hero__trust {
  margin-top: 28px;
  display: flex;
  gap: 20px;
  align-items: center;
  color: var(--ink-2);
  font-size: 13px;
  flex-wrap: wrap;
}
.hero__trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* orbit */
.orbit {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 480px;
  justify-self: center;
}
.orbit__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.orbit__center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110px;
  height: 121px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.orbit__tile {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: var(--bg-vellum);
  border: 1px solid var(--hairline-2);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--dur-base) var(--ease-out);
}
.orbit__tile:hover {
  transform: translate(-50%, -50%) translateY(-3px);
}
.orbit__tile img { width: 28px; height: 28px; }

/* =========================================================================
   HOW IT WORKS
   ========================================================================= */
.how {
  padding: 96px 32px;
  background: var(--bg-paper);
}
.how__inner { max-width: 1200px; margin: 0 auto; }
.how__head { margin-bottom: 64px; }
.how__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink-0);
  margin: 12px 0 0;
  max-width: 18ch;
}
.how__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}
.step__n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--neon);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline-2);
  margin-bottom: 16px;
}
.step__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink-0);
  margin: 0 0 12px;
}
.step__body {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-1);
  max-width: 38ch;
  margin: 0;
}

/* terminal */
.terminal {
  background: var(--bg-vellum);
  border: 1px solid var(--hairline-2);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.terminal__bar {
  padding: 10px 14px;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.terminal__bar .right { margin-left: auto; }
.terminal__body {
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
}
.terminal__prompt {
  color: var(--ink-0);
  margin-bottom: 6px;
}
.terminal__prompt::before {
  content: '?';
  color: var(--neon);
  margin-right: 8px;
}
.terminal__meta {
  color: var(--ink-2);
  margin-bottom: 14px;
}
.terminal__result {
  margin-bottom: 12px;
  padding-left: 20px;
  border-left: 2px solid var(--neon-mist);
}
.terminal__result-row {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--ink-1);
  margin-bottom: 4px;
}
.terminal__result-row img { width: 14px; height: 14px; }
.terminal__result-title {
  font-weight: 500;
  color: var(--ink-0);
}
.terminal__result-date {
  color: var(--ink-2);
  font-size: 11px;
  margin-left: auto;
}
.terminal__snippet {
  color: var(--ink-2);
  font-family: var(--font-body);
  font-size: 13px;
}
.terminal__piped {
  color: var(--neon);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
}
.terminal__piped::before {
  content: '✓';
  margin-right: 8px;
}

/* =========================================================================
   CONNECTORS
   ========================================================================= */
.connectors {
  padding: 96px 32px;
  border-top: 1px solid var(--hairline);
  background: var(--bg-vellum);
}
.connectors__inner { max-width: 1200px; margin: 0 auto; }
.connectors__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
  gap: 32px;
  flex-wrap: wrap;
}
.connectors__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink-0);
  margin: 12px 0 0;
  max-width: 14ch;
}
.connectors__desc {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-1);
  max-width: 38ch;
  margin: 0;
}
.connectors__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.tile {
  background: var(--bg-paper);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 20px;
  transition: box-shadow var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
  box-shadow: var(--shadow-sheet);
  cursor: pointer;
  position: relative;
}
.tile:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.tile--soon { cursor: default; }
.tile__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.tile__icon {
  width: 32px;
  height: 32px;
}
.tile__icon-placeholder {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg-fog);
  border: 1px dashed var(--hairline-3);
}
.tile--soon .tile__icon { opacity: 0.4; }
.tile__name {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-0);
  margin-bottom: 4px;
}
.tile__blurb {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.45;
}

/* =========================================================================
   VAULT PREVIEW
   ========================================================================= */
.vault {
  padding: 96px 32px;
  background: var(--bg-paper);
  border-top: 1px solid var(--hairline);
}
.vault__inner { max-width: 1200px; margin: 0 auto; }
.vault__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.vault__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink-0);
  margin: 12px 0 0;
  max-width: 18ch;
}
.vault__desc {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-1);
  max-width: 38ch;
  margin: 0;
}
.vault__shell {
  display: grid;
  grid-template-columns: 280px 1fr 260px;
  background: var(--bg-vellum);
  border: 1px solid var(--hairline-2);
  border-radius: 12px;
  box-shadow: var(--shadow-float);
  overflow: hidden;
}

/* file tree */
.tree {
  border-right: 1px solid var(--hairline);
  padding: 16px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-1);
  background: var(--bg-paper);
  min-height: 520px;
}
.tree__head {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  padding: 4px 10px 12px;
}
.tree__row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 4px;
}
.tree__row--folder { color: var(--ink-0); font-weight: 500; }
.tree__row--file   { color: var(--ink-1); }
.tree__row--active { color: var(--neon); background: var(--neon-mist); }
.tree__row .glyph { width: 10px; opacity: 0.6; display: inline-block; }

/* markdown pane */
.md {
  min-height: 520px;
  display: flex;
  flex-direction: column;
}
.md__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.md__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon);
  margin-left: 8px;
}
.md__synced { color: var(--neon); }
.md__size { margin-left: auto; color: var(--ink-3); }
.md__body {
  padding: 24px 28px;
  flex: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
}
.md__frontmatter {
  margin: 0 0 18px;
  color: var(--ink-2);
  font-family: inherit;
  font-size: 12px;
  white-space: pre;
}
.md__h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 28px;
  color: var(--ink-0);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.md__p {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink-1);
  margin: 0 0 16px;
  line-height: 1.6;
}
.md__h2 {
  color: var(--ink-0);
  margin: 14px 0 8px;
  font-weight: 400;
  font-size: 13px;
}
.md__bullet {
  color: var(--ink-1);
  margin: 0 0 6px;
  padding-left: 14px;
  position: relative;
}
.md__bullet::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--ink-3);
}
.md__link { color: var(--neon); }

/* graph */
.graph {
  border-left: 1px solid var(--hairline);
  background: var(--bg-paper);
  display: flex;
  flex-direction: column;
}
.graph__head {
  padding: 12px 16px;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.graph__svg {
  flex: 1;
  width: 100%;
}
.graph__meta {
  padding: 12px 16px;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
}
.graph__meta-row {
  display: flex;
  justify-content: space-between;
}
.graph__meta-row b {
  color: var(--ink-0);
  font-weight: 400;
}

/* stats row */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.stat {
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 20px 24px;
  background: var(--bg-vellum);
}
.stat__n {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 36px;
  letter-spacing: -0.02em;
  color: var(--ink-0);
  line-height: 1;
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 10px;
}

/* =========================================================================
   PRICING
   ========================================================================= */
.pricing {
  padding: 120px 32px;
  border-top: 1px solid var(--hairline);
  background: var(--bg-vellum);
  position: relative;
  overflow: hidden;
}
.pricing__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 720px;
  height: 720px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(197,255,61,0.05) 0%, rgba(197,255,61,0) 60%);
  pointer-events: none;
  z-index: 0;
}
.pricing__inner {
  max-width: 920px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.pricing__head {
  text-align: center;
  margin-bottom: 48px;
}
.pricing__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--ink-0);
  margin: 12px 0 0;
}
.pricing__sub {
  font-family: var(--font-body);
  font-size: 17px;
  color: var(--ink-1);
  max-width: 48ch;
  margin: 20px auto 0;
  line-height: 1.55;
}
.pricing__card {
  background: var(--bg-paper);
  border: 1px solid var(--hairline-2);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
}
.pricing__label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  margin-bottom: 16px;
}
.pricing__price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
}
.pricing__price-n {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 96px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ink-0);
}
.pricing__price-unit {
  font-size: 14px;
  color: var(--ink-2);
}
.pricing__tag {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  color: var(--ink-1);
  margin: 8px 0 28px;
  line-height: 1.35;
  font-variation-settings: "slnt" -4;
}
.pricing__cta {
  width: 100%;
  justify-content: center;
}
.pricing__platforms {
  margin-top: 14px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.pricing__inc-head {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 16px;
}
.pricing__features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pricing__features li {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 15px;
  color: var(--ink-1);
}
.pricing__features svg {
  flex-shrink: 0;
  color: var(--neon);
}
.pricing__foot {
  text-align: center;
  font-size: 13px;
  color: var(--ink-2);
  max-width: 52ch;
  margin: 32px auto 0;
  line-height: 1.55;
}

/* =========================================================================
   FAQ
   ========================================================================= */
.faq {
  padding: 96px 32px;
  border-top: 1px solid var(--hairline);
  background: var(--bg-vellum);
}
.faq__inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 64px;
}
.faq__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink-0);
  margin: 12px 0 16px;
}
.faq__sub {
  font-size: 14px;
  color: var(--ink-2);
  margin: 0;
  line-height: 1.6;
}
.faq__list { border-top: 1px solid var(--hairline); }
.faq__item { border-bottom: 1px solid var(--hairline); }
.faq__btn {
  width: 100%;
  background: transparent;
  border: none;
  text-align: left;
  padding: 24px 4px;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 24px;
  color: var(--ink-0);
  font-family: var(--font-body);
}
.faq__n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  min-width: 24px;
  padding-top: 4px;
}
.faq__q {
  flex: 1;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.015em;
  line-height: 1.25;
}
.faq__plus {
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 16px;
  padding-top: 4px;
  transition: transform var(--dur-base) var(--ease-out);
  display: inline-block;
}
.faq__item.open .faq__plus { transform: rotate(45deg); }
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 320ms var(--ease-out);
}
.faq__item.open .faq__answer { max-height: 320px; }
.faq__a {
  margin: 0 0 24px;
  padding-left: 48px;
  padding-right: 32px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-1);
  max-width: 60ch;
}

/* =========================================================================
   CTA
   ========================================================================= */
.cta {
  padding: 144px 32px;
  border-top: 1px solid var(--hairline);
  background: var(--bg-paper);
  position: relative;
  overflow: hidden;
}
.cta__dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, var(--ink-3) 1px, transparent 0);
  background-size: 32px 32px;
  opacity: 0.18;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
          mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.cta__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(197,255,61,0.10) 0%, rgba(197,255,61,0) 55%);
  pointer-events: none;
}
.cta__inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}
.cta__glyph {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
}
.cta__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--ink-0);
  margin: 0;
}
.cta__title .accent { color: var(--neon); }
.cta__sub {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-1);
  max-width: 52ch;
  margin: 32px auto 40px;
}
.cta__buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.cta__platforms {
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* =========================================================================
   FOOTER
   ========================================================================= */
.footer {
  padding: 64px 32px 40px;
  border-top: 1px solid var(--hairline);
  background: var(--bg-paper);
}
.footer__inner { max-width: 1200px; margin: 0 auto; }
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--hairline);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.footer__manifesto {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--ink-1);
  max-width: 28ch;
  line-height: 1.35;
  margin: 0;
}
.footer__col-head { margin-bottom: 14px; display: block; }
.footer__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer__col a {
  font-size: 14px;
  color: var(--ink-1);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer__col a:hover { color: var(--ink-0); }
.footer__bar {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-2);
}

/* =========================================================================
   DOCS — sidebar layout, callouts, code blocks
   ========================================================================= */

.docs {
  max-width: 1240px;
  margin: 0 auto;
  padding: 48px 32px 120px;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 200px;
  gap: 56px;
  align-items: start;
}

/* sidebar */
.sidebar { position: sticky; top: 80px; }
.sidebar__group { margin-bottom: 28px; }
.sidebar__group:last-child { margin-bottom: 0; }
.sidebar__head {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  padding: 0 12px 10px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 8px;
}
.sidebar__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.sidebar__link {
  display: block;
  padding: 7px 12px;
  font-size: 14px;
  color: var(--ink-1);
  border-radius: 6px;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.sidebar__link:hover { color: var(--ink-0); background: var(--bg-vellum); }
.sidebar__link--active {
  color: var(--neon);
  background: var(--neon-mist);
}
.sidebar__link--active:hover { color: var(--neon); background: var(--neon-mist); }

/* article */
.article { min-width: 0; max-width: 720px; }
.article__crumb {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  margin-bottom: 20px;
}
.article__crumb a { color: var(--ink-2); }
.article__crumb a:hover { color: var(--ink-0); }
.article__crumb .sep { padding: 0 8px; color: var(--ink-3); }

.article h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink-0);
  margin: 0 0 16px;
}
.article__lede {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-1);
  margin: 0 0 48px;
  max-width: 60ch;
}

.article h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink-0);
  margin: 56px 0 16px;
  scroll-margin-top: 96px;
}
.article h2:first-of-type { margin-top: 0; }

.article h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ink-0);
  margin: 36px 0 12px;
  scroll-margin-top: 96px;
}

.article p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-1);
  margin: 0 0 16px;
  max-width: 64ch;
}

.article ul, .article ol {
  padding-left: 22px;
  margin: 0 0 20px;
}
.article li {
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-1);
  margin-bottom: 8px;
  max-width: 60ch;
}
.article li::marker { color: var(--ink-3); }

.article a {
  color: var(--neon);
  text-decoration: underline;
  text-decoration-color: rgba(197, 255, 61, 0.35);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--dur-fast) var(--ease-out);
}
.article a:hover { text-decoration-color: var(--neon); }

.article strong { color: var(--ink-0); font-weight: 600; }
.article em { color: var(--ink-0); font-style: italic; }

.article code, .article kbd {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-vellum);
  color: var(--ink-0);
  border: 1px solid var(--hairline);
}

.article pre {
  margin: 20px 0 24px;
  padding: 20px 24px;
  background: var(--bg-vellum);
  border: 1px solid var(--hairline-2);
  border-radius: 10px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-1);
  box-shadow: var(--shadow-sheet);
}
.article pre code {
  font-size: inherit;
  padding: 0;
  background: transparent;
  border: none;
  color: inherit;
}
.article pre .c-key  { color: var(--neon); }
.article pre .c-str  { color: #d1c98f; }
.article pre .c-com  { color: var(--ink-3); font-style: italic; }
.article pre .c-fn   { color: var(--ink-0); }
.article pre .c-flag { color: #ff9b8a; }

.article hr {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 56px 0;
}

/* tables */
.article table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 28px;
  font-size: 14px;
}
.article thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  padding: 12px 16px;
  border-bottom: 1px solid var(--hairline-2);
}
.article tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-1);
  vertical-align: top;
}
.article tbody tr:last-child td { border-bottom: none; }
.article tbody td:first-child {
  color: var(--ink-0);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* callouts */
.callout {
  margin: 24px 0;
  padding: 16px 20px;
  border-radius: 8px;
  border: 1px solid var(--hairline-2);
  background: var(--bg-vellum);
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-1);
}
.callout__label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 500;
  margin-right: 6px;
}
.callout p { margin: 0; color: inherit; }
.callout p + p { margin-top: 8px; }
.callout--note { border-left: 2px solid var(--neon); }
.callout--note .callout__label { color: var(--neon); }
.callout--warn { border-left: 2px solid var(--oxblood); background: rgba(255, 107, 90, 0.05); }
.callout--warn .callout__label { color: var(--oxblood); }
.callout--tip { border-left: 2px solid var(--moss); }
.callout--tip .callout__label { color: var(--moss); }

/* on-page TOC */
.toc { position: sticky; top: 80px; }
.toc__head {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 12px;
}
.toc__list { list-style: none; padding: 0; margin: 0; }
.toc__list li { margin-bottom: 6px; }
.toc__list a {
  font-size: 13px;
  color: var(--ink-2);
  display: block;
  padding: 3px 0;
  line-height: 1.45;
}
.toc__list a:hover { color: var(--ink-0); }
.toc__list .indent { padding-left: 14px; font-size: 12px; }

/* card grid (overview page) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 8px 0 32px;
}
.doc-card {
  display: block;
  padding: 24px;
  background: var(--bg-vellum);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  transition: border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
  text-decoration: none;
  color: inherit;
}
.doc-card:hover {
  border-color: var(--hairline-3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  text-decoration: none;
}
.doc-card__head {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--neon);
  margin-bottom: 12px;
}
.doc-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.015em;
  color: var(--ink-0);
  margin: 0 0 6px;
  line-height: 1.2;
}
.doc-card__desc {
  font-size: 13px;
  color: var(--ink-2);
  margin: 0;
  line-height: 1.5;
}

/* prev/next nav at bottom */
.page-nav {
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.page-nav__link {
  display: block;
  padding: 20px 24px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--bg-vellum);
  transition: border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  text-decoration: none;
}
.page-nav__link:hover {
  border-color: var(--hairline-3);
  transform: translateY(-1px);
  text-decoration: none;
}
.page-nav__link--next { text-align: right; }
.page-nav__dir {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.page-nav__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--ink-0);
  letter-spacing: -0.01em;
}

/* docs responsive */
@media (max-width: 1100px) {
  .docs { grid-template-columns: 220px minmax(0, 1fr); gap: 40px; }
  .toc { display: none; }
}
@media (max-width: 800px) {
  .docs {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 24px 80px;
  }
  .sidebar {
    position: static;
    padding: 20px;
    background: var(--bg-vellum);
    border: 1px solid var(--hairline);
    border-radius: 10px;
  }
  .page-nav { grid-template-columns: 1fr; }
  .page-nav__link--next { text-align: left; }
}

/* =========================================================================
   RESPONSIVE — tighten layouts under 960px
   ========================================================================= */
@media (max-width: 960px) {
  .nav__links { display: none; }
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .orbit { max-width: 360px; margin: 0 auto; }
  .how__steps { grid-template-columns: 1fr; gap: 40px; }
  .connectors__grid { grid-template-columns: repeat(2, 1fr); }
  .vault__shell { grid-template-columns: 1fr; }
  .tree { border-right: none; border-bottom: 1px solid var(--hairline); min-height: 0; }
  .graph { border-left: none; border-top: 1px solid var(--hairline); }
  .md { min-height: 0; }
  .stats { grid-template-columns: 1fr; }
  .quotes__grid { grid-template-columns: 1fr; }
  .pricing__card { grid-template-columns: 1fr; padding: 32px; gap: 32px; }
  .pricing__price-n { font-size: 72px; }
  .faq__inner { grid-template-columns: 1fr; gap: 32px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .hero__inner { padding: 64px 24px 72px; }
  .how, .connectors, .vault, .quotes, .pricing, .faq, .cta { padding-left: 20px; padding-right: 20px; }
  .nav__inner { padding: 12px 20px; }
  .footer { padding: 48px 20px 32px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .connectors__grid { grid-template-columns: 1fr; }
}