/* ============================================================
   NanoAgent — landing page styles
   ============================================================ */

:root {
  --bg:        #000000;
  --bg-2:      #050608;
  --surface:   #0a0c12;
  --surface-2: #11131d;
  --border:    rgba(255,255,255,.09);
  --border-2:  rgba(255,255,255,.16);

  --text:      #e8eaf0;
  --text-mut:  #9aa1b2;
  --text-dim:  #6b7185;

  --acc-1:     #6ee7ff;   /* cyan  */
  --acc-2:     #7c8cff;   /* indigo */
  --acc-3:     #b07cff;   /* violet */
  --grad:      linear-gradient(100deg, var(--acc-1), var(--acc-2) 55%, var(--acc-3));

  --maxw: 1160px;
  --radius: 16px;
  --radius-sm: 10px;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", "Cascadia Code", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ───────── ambient background ───────── */
.bg-grid {
  position: fixed; inset: 0; z-index: -2;
  background:
    linear-gradient(var(--bg), var(--bg-2));
}
.bg-grid::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}
.bg-glow {
  position: fixed; z-index: -1; top: -260px; left: 50%;
  width: 1100px; height: 700px; transform: translateX(-50%);
  background:
    radial-gradient(closest-side, rgba(124,140,255,.20), transparent),
    radial-gradient(closest-side, rgba(110,231,255,.14) 60%, transparent) 70% 40%;
  filter: blur(30px);
  pointer-events: none;
}

/* ───────── buttons ───────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; font-size: 14px; line-height: 1;
  padding: 11px 18px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn--lg { font-size: 15px; padding: 14px 24px; }
.btn--primary {
  color: #06121a;
  background: var(--acc-2);
  box-shadow: 0 8px 30px -10px rgba(124,140,255,.6);
}
.btn--primary:hover { background: #93a0ff; transform: translateY(-2px); box-shadow: 0 14px 40px -10px rgba(124,140,255,.7); }
.btn--ghost {
  color: var(--text); background: rgba(255,255,255,.04); border-color: var(--border-2);
}
.btn--ghost:hover { background: rgba(255,255,255,.08); transform: translateY(-2px); }

/* ───────── nav ───────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(0,0,0,.55);
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease;
}
.nav.is-scrolled { background: rgba(0,0,0,.85); border-bottom-color: var(--border); }
.nav__inner { display: flex; align-items: center; gap: 28px; height: 68px; position: relative; }

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.01em; }
.brand__mark { border-radius: 7px; }
.brand__name { font-size: 17px; }

.nav__links { display: flex; gap: 26px; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.nav__links a { color: var(--text-mut); font-size: 14px; font-weight: 500; transition: color .15s ease; }
.nav__links a:hover { color: var(--text); }

.nav__actions { display: flex; align-items: center; gap: 12px; margin-inline-start: auto; }
.ghost-link {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--text-mut); font-size: 13px; font-weight: 600;
  padding: 8px 12px; border-radius: 999px; border: 1px solid var(--border);
  transition: color .15s ease, border-color .15s ease;
}
.ghost-link:hover { color: var(--text); border-color: var(--border-2); }

.nav__burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__burger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: .25s; }

/* ───────── hero / header ───────── */
.hero {
  text-align: center;
  max-width: 1000px; margin-inline: auto;
  padding-top: 64px; padding-bottom: 24px;
}
.grad {
  color: var(--acc-1);
}
.hero__title {
  font-size: clamp(34px, 5.4vw, 60px); line-height: 1.05; letter-spacing: -.025em;
  font-weight: 800; margin: 0;
}
.hero__sub {
  margin: 22px auto 0; max-width: 640px; font-size: 17px; color: var(--text-mut);
}
.install__sigil { color: var(--acc-1); margin-right: 8px; user-select: none; }

/* ───────── install selector (Kilo-style) ───────── */
.installer {
  margin: 34px auto 0; 
  border: 1px solid var(--border-2); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  box-shadow: 0 30px 80px -40px rgba(0,0,0,.9);
  overflow: hidden;
  text-align: left;
}
.installer__tabs {
  display: flex; flex-wrap: wrap; gap: 4px; padding: 7px;
  background: var(--bg-2); border-bottom: 1px solid var(--border);
}
.itab {
  display: inline-flex; align-items: center; gap: 7px;
  border: 0; background: none; color: var(--text-mut);
  font-family: inherit; font-size: 13.5px; font-weight: 600;
  padding: 8px 14px; border-radius: 9px; cursor: pointer; transition: .15s;
}
.itab:hover { color: var(--text); background: rgba(255,255,255,.05); }
.itab.is-active { color: var(--text); background: rgba(124,140,255,.16); }
.installer__panels { padding: 12px; }
.ipanel { display: none; }
.ipanel.is-active { display: block; }

/* package-manager sub tabs (curl / npm / pnpm / …) */
.csub {
  display: flex; flex-wrap: wrap; gap: 4px;
  margin-bottom: 12px; border-bottom: 1px solid var(--border);
}
.csub__tab {
  border: 0; background: none; color: var(--text-dim);
  font-family: var(--mono); font-size: 12.5px; font-weight: 600;
  padding: 7px 12px; border-radius: 8px 8px 0 0; cursor: pointer;
  border-bottom: 2px solid transparent; transition: .15s;
}
.csub__tab:hover { color: var(--text); }
.csub__tab.is-active { color: var(--acc-1); border-bottom-color: var(--acc-1); }
.csub__panel { display: none; }
.csub__panel.is-active { display: block; }
.csub__panel .installer__command-block + .installer__command-block { margin-top: 10px; }
.installer__screen {
  display: flex; align-items: stretch; gap: 0;
  background: #050505; border: 1px solid var(--border); border-radius: 10px;
  overflow: hidden;
}
.installer__cmd {
  flex: 1; min-width: 0;
  font-family: var(--mono); font-size: 13px; color: var(--text);
  padding: 8px 16px; overflow-x: auto; white-space: nowrap;
}
.installer__copy {
  flex-shrink: 0; border: 0; border-left: 1px solid var(--border);
  background: rgba(255,255,255,.04); color: var(--text-mut);
  font-weight: 600; font-size: 13px; padding: 0 18px; cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.installer__copy:hover { background: rgba(255,255,255,.09); color: var(--text); }
.installer__copy.is-copied { color: var(--acc-1); }
.installer__actions {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 12px;
}
.installer__actions .btn--lg {
  padding: 9px 18px; font-size: 14px;
}
.installer__foot {
  margin: 16px 0 2px; text-align: center; font-size: 13px; color: var(--text-dim);
}
.installer__foot a { color: var(--acc-1); }
.installer__foot a:hover { text-decoration: underline; }
.installer__foot code { font-family: var(--mono); color: var(--text-mut); }

/* hero visual */
.hero__visual { position: relative; max-width: 920px; margin: 56px auto 0; }
.visual__frame {
  position: relative; z-index: 1;
  border: 1px solid var(--border-2); border-radius: var(--radius);
  background: #050505; overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.02);
}
.visual__bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px; background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot--r { background: #ff5f57; } .dot--y { background: #febc2e; } .dot--g { background: #28c840; }
.visual__title { margin-left: 8px; font-family: var(--mono); font-size: 12px; color: var(--text-dim); }
.visual__img { width: 100%; }
.visual__halo {
  position: absolute; inset: -30px -20px; z-index: 0;
  background: radial-gradient(closest-side, rgba(124,140,255,.25), transparent 70%);
  filter: blur(40px);
}

/* ───────── stripband ───────── */
.stripband {
  display: flex; align-items: center; flex-wrap: wrap; gap: 14px 28px;
  padding-top: 26px; padding-bottom: 26px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.stripband__label { font-size: 13px; color: var(--text-dim); font-weight: 600; }
.stripband__list { display: flex; flex-wrap: wrap; gap: 10px 26px; list-style: none; margin: 0; padding: 0; }
.stripband__list li { font-size: 14px; color: var(--text-mut); font-weight: 500; }
.stripband__list code { font-family: var(--mono); font-size: 13px; color: var(--acc-1); }

/* ───────── sections ───────── */
.section { padding-top: 96px; padding-bottom: 0; }
.section__head { max-width: 680px; margin: 0 auto 46px; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--acc-1);
}
.section__title {
  font-size: clamp(26px, 3.4vw, 38px); line-height: 1.12; letter-spacing: -.02em;
  font-weight: 800; margin: 12px 0 0;
}
.section__lede { margin: 16px 0 0; font-size: 16.5px; color: var(--text-mut); }
.section__head .section__lede { margin-inline: auto; }

/* ───────── feature grid ───────── */
.grid { display: grid; gap: 18px; }
.grid--features { grid-template-columns: repeat(3, 1fr); }
.card {
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 24px; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-2); box-shadow: 0 20px 50px -30px rgba(124,140,255,.5); }
.card__icon {
  width: 46px; height: 46px; display: grid; place-items: center; font-size: 22px;
  border-radius: 12px; background: rgba(124,140,255,.1); border: 1px solid var(--border);
  margin-bottom: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 17px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--text-mut); font-size: 14.5px; }
.card code, .control-list code, .cmd code, .stripband code,
.feature-list code, .section__lede code, .install__alt code, .privacy code {
  font-family: var(--mono); font-size: .9em;
  background: rgba(255,255,255,.06); padding: 1px 6px; border-radius: 5px; color: var(--acc-1);
}

/* ───────── feature list ───────── */
.feature-list { list-style: none; margin: 0; padding: 0; }
.feature-list__item {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 4px; border-top: 1px solid var(--border);
  transition: background .2s ease;
}
.feature-list__item:last-child { border-bottom: 1px solid var(--border); }
.feature-list__item:hover { background: rgba(124,140,255,.04); }
.feature-list__item .card__icon {
  flex: none; margin-bottom: 0; background: none; border: none;
  width: 26px; height: 26px; font-size: 16px; border-radius: 0;
}
.feature-list__text h3 { margin: 0 0 2px; font-size: 14.5px; letter-spacing: -.01em; }
.feature-list__text p { margin: 0; color: var(--text-mut); font-size: 13px; line-height: 1.45; }

.section__actions { display: flex; justify-content: center;  margin-top: 28px; }

/* ───────── surfaces (tabs) ───────── */
.surfaces {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); overflow: hidden;
}
.surfaces__tabs {
  display: flex; flex-wrap: wrap; gap: 4px; padding: 10px;
  border-bottom: 1px solid var(--border); background: var(--bg-2);
}
.tab {
  border: 0; background: none; color: var(--text-mut);
  font-family: inherit; font-size: 14px; font-weight: 600;
  padding: 9px 16px; border-radius: 9px; cursor: pointer; transition: .15s;
}
.tab:hover { color: var(--text); background: rgba(255,255,255,.05); }
.tab.is-active { color: var(--text); background: rgba(124,140,255,.16); }

.panel { display: none; grid-template-columns: 1fr 1fr; gap: 30px; padding: 36px; align-items: center; }
.panel.is-active { display: grid; }
.panel__text h3 { margin: 0 0 10px; font-size: 22px; letter-spacing: -.01em; }
.panel__text p { margin: 0 0 16px; color: var(--text-mut); }
.text-link { color: var(--acc-1); font-weight: 600; font-size: 14.5px; }
.text-link:hover { text-decoration: underline; }
.panel__code {
  margin: 0; background: #050505; border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; overflow-x: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.7; color: var(--text);
}

/* ───────── split (control) ───────── */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split__copy .section__title { margin-top: 12px; }
.split__copy .section__lede { margin-bottom: 24px; }
.control-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.control-list li {
  position: relative; padding: 16px 18px 16px 46px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  color: var(--text-mut); font-size: 14.5px;
}
.control-list li strong { color: var(--text); }
.control-list li::before {
  content: "✓"; position: absolute; left: 16px; top: 16px;
  width: 20px; height: 20px; display: grid; place-items: center;
  font-size: 12px; font-weight: 700; color: #06121a;
  background: var(--acc-2); border-radius: 6px;
}

/* ───────── privacy ───────── */
.privacy {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  padding: 40px;
}
.privacy__head { text-align: center; max-width: 640px; margin: 0 auto 32px; }
.privacy__head .section__lede { margin-inline: auto; }
.privacy__cols { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.privacy__col {
  border: 1px solid var(--border); border-radius: 12px; padding: 24px;
  background: var(--bg-2);
}
.privacy__col h3 { margin: 0 0 14px; font-size: 16px; }
.privacy__col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.privacy__col li { position: relative; padding-left: 26px; color: var(--text-mut); font-size: 14.5px; }
.privacy__col--no li::before { content: "✕"; position: absolute; left: 0; color: #ff6b6b; font-weight: 700; }
.privacy__col--yes li::before { content: "✓"; position: absolute; left: 0; color: var(--acc-1); font-weight: 700; }

/* ───────── comparison table ───────── */
.table-wrap {
  overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface);
}
.compare {
  width: 100%; border-collapse: collapse; min-width: 760px;
  font-size: 14px;
}
.compare th, .compare td {
  padding: 12px 10px; text-align: center; border-bottom: 1px solid var(--border);
}
.compare thead th {
  position: sticky; top: 0; background: var(--bg-2);
  font-size: 13px; font-weight: 700; color: var(--text-mut);
  border-bottom: 1px solid var(--border-2);
}
.compare thead .compare__us {
  color: var(--text);
  background: linear-gradient(180deg, rgba(124,140,255,.22), rgba(124,140,255,.06));
}
.compare tbody th[scope="row"] {
  text-align: left; font-weight: 600; color: var(--text);
  padding-left: 18px; white-space: nowrap;
}
.compare tbody tr:hover { background: rgba(255,255,255,.025); }
.compare td.compare__us, .compare th.compare__us { background: rgba(124,140,255,.07); }
.compare td { color: var(--text-dim); font-size: 16px; }
.compare .y { color: var(--acc-1); font-weight: 700; }
.compare .p { color: #febc2e; font-weight: 700; }
.compare .n { color: var(--text-dim); }
.compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: 0; }
.compare__legend {
  margin: 16px 0 0; text-align: center; font-size: 13px; color: var(--text-mut);
}
.compare__legend .y { color: var(--acc-1); font-weight: 700; }
.compare__legend .p { color: #febc2e; font-weight: 700; }
.compare__legend .n { color: var(--text-dim); font-weight: 700; }

/* ───────── providers ───────── */
.providers {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}
.providers li {
  font-size: 14.5px; font-weight: 500; color: var(--text-mut);
  padding: 11px 18px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .15s ease, border-color .15s ease, color .15s ease;
}
.providers li:hover { transform: translateY(-2px); border-color: var(--border-2); color: var(--text); }

/* ───────── quickstart steps ───────── */
.steps { display: grid; gap: 20px; max-width: 860px; margin-inline: auto; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: start; }
.step__num {
  width: 38px; height: 38px; flex-shrink: 0; display: grid; place-items: center;
  font-weight: 800; font-size: 16px; color: #06121a;
  background: var(--acc-2); border-radius: 10px;
}
.step__body { min-width: 0; }
.step__body h3 { margin: 4px 0 14px; font-size: 19px; }
.step__note { margin: 0 0 12px; color: var(--text-mut); font-size: 14.5px; }

.codebox { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: #050505; }
.codebox__tabs { display: flex; gap: 4px; padding: 8px; background: var(--bg-2); border-bottom: 1px solid var(--border); }
.codetab {
  border: 0; background: none; color: var(--text-mut); font-family: inherit;
  font-size: 13px; font-weight: 600; padding: 7px 14px; border-radius: 8px; cursor: pointer; transition: .15s;
}
.codetab:hover { color: var(--text); background: rgba(255,255,255,.05); }
.codetab.is-active { color: var(--text); background: rgba(124,140,255,.16); }
.codebox__body { position: relative; }

.codeblock {
  position: relative; margin: 0; padding: 20px; overflow-x: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.75; color: var(--text);
  display: none;
}
.codebox .codeblock.is-active { display: block; }
.codeblock--solo {
  display: block; background: #050505; border: 1px solid var(--border); border-radius: 12px;
}
.codeblock__copy {
  position: absolute; top: 12px; right: 12px;
  border: 1px solid var(--border); background: rgba(255,255,255,.04); color: var(--text-mut);
  font-weight: 600; font-size: 12px; padding: 6px 12px; border-radius: 7px; cursor: pointer;
  transition: .15s; z-index: 2;
}
.codeblock__copy:hover { background: rgba(255,255,255,.1); color: var(--text); }
.codeblock__copy.is-copied { color: var(--acc-1); border-color: var(--acc-1); }
.c-dim { color: var(--text-dim); }

/* in-session commands */
.cmds { margin-top: 50px; }
.cmds__title { text-align: center; font-size: 18px; margin: 0 0 22px; color: var(--text-mut); }
.cmds__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cmd {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 18px; display: flex; flex-direction: column; gap: 6px;
}
.cmd > code {
  font-family: var(--mono); font-size: 14px; color: var(--acc-1);
  background: none; padding: 0; align-self: flex-start;
}
.cmd span { font-size: 13.5px; color: var(--text-mut); }
.cmd span code { font-size: 12.5px; }

/* ───────── benchmarks ───────── */
.bench { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.bench__copy .section__title { margin-top: 12px; }
.bench__copy .section__lede { margin-bottom: 24px; }
.bench__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ───────── CTA ───────── */
.cta {
  position: relative; overflow: hidden; text-align: center;
  border: 1px solid var(--border-2); border-radius: 24px;
  background: linear-gradient(180deg, var(--surface-2), var(--bg-2));
  padding: 64px 32px;
}
.cta__glow {
  position: absolute; top: -120px; left: 50%; transform: translateX(-50%);
  width: 700px; height: 400px;
  background: radial-gradient(closest-side, rgba(124,140,255,.35), transparent 70%);
  filter: blur(40px); pointer-events: none;
}
.cta h2 { position: relative; font-size: clamp(26px, 3.6vw, 40px); letter-spacing: -.02em; margin: 0 0 12px; }
.cta p { position: relative; color: var(--text-mut); font-size: 17px; margin: 0 0 28px; }
.cta__actions { position: relative; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ───────── footer ───────── */
.footer { margin-top: 110px; border-top: 1px solid var(--border); background: var(--bg-2); }
.footer__inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; padding-top: 56px; padding-bottom: 40px; }
.footer__brand p { color: var(--text-mut); font-size: 14px; max-width: 280px; margin: 14px 0 0; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer__col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); margin: 0 0 14px; }
.footer__col a { display: block; color: var(--text-mut); font-size: 14px; padding: 5px 0; transition: color .15s ease; }
.footer__col a:hover { color: var(--text); }
.footer__base {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  padding-top: 22px; padding-bottom: 32px; border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-dim);
}
.footer__sponsor a { color: var(--text-mut); }
.footer__sponsor a:hover { color: var(--acc-1); }

/* ───────── features page ───────── */
.feat-hero {
  text-align: center; max-width: 860px; margin-inline: auto;
  padding-top: 56px; padding-bottom: 8px;
}
.feat-hero .hero__title { font-size: clamp(30px, 4.6vw, 52px); }
.feat-hero .hero__sub { margin-top: 18px; }

/* sticky category nav */
.featnav {
  position: sticky; top: 67px; z-index: 40;
  background: rgba(0,0,0,.82);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.featnav__inner {
  display: flex; gap: 8px; overflow-x: auto;
  padding-top: 12px; padding-bottom: 12px;
  scrollbar-width: none; -ms-overflow-style: none;
}
.featnav__inner::-webkit-scrollbar { display: none; }
.featnav a {
  flex: none; font-size: 13px; font-weight: 600; color: var(--text-mut);
  padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); white-space: nowrap;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.featnav a:hover { color: var(--text); border-color: var(--border-2); }
.featnav a.is-active { color: #06121a; background: var(--acc-2); border-color: transparent; }

/* category block */
.featcat { padding-top: 78px; scroll-margin-top: 132px; }
.featcat:first-of-type { padding-top: 60px; }
.featcat__head { display: flex; align-items: center; gap: 14px; margin-bottom: 26px; }
.featcat__icon {
  width: 46px; height: 46px; flex: none; display: grid; place-items: center;
  font-size: 22px; border-radius: 12px;
  background: rgba(124,140,255,.1); border: 1px solid var(--border);
}
.featcat__titles h2 { margin: 0; font-size: clamp(22px, 3vw, 30px); letter-spacing: -.02em; }
.featcat__titles p { margin: 5px 0 0; color: var(--text-mut); font-size: 14.5px; }
.featcat .card h3 code { background: none; padding: 0; color: var(--acc-1); }

/* TUI keyboard shortcuts */
.shortcuts__title {
  margin: 34px 0 16px; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-dim);
}
.shortcuts {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
}
.shortcuts li {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 12px;
}
.shortcuts__keys { flex: none; display: flex; align-items: center; gap: 5px; min-width: 76px; }
.shortcuts li > span:last-child { color: var(--text-mut); font-size: 13.5px; }
kbd {
  font-family: var(--mono); font-size: 12px; color: var(--text);
  background: linear-gradient(180deg, var(--surface-2), #0c0e16);
  border: 1px solid var(--border-2); border-bottom-width: 2px;
  border-radius: 7px; padding: 5px 9px; white-space: nowrap; line-height: 1;
  box-shadow: 0 1px 0 rgba(0,0,0,.5);
}

/* ───────── documentation page ───────── */
.docs-hero {
  text-align: center; max-width: 760px; margin-inline: auto;
  padding-top: 56px; padding-bottom: 8px;
}
.docs-hero .hero__title { font-size: clamp(30px, 4.6vw, 50px); }
.docs-hero .hero__sub code {
  font-family: var(--mono); font-size: .9em;
  background: rgba(255,255,255,.06); padding: 1px 6px; border-radius: 5px; color: var(--acc-1);
}

.docs {
  display: grid; grid-template-columns: 248px minmax(0, 1fr);
  gap: 56px; align-items: start; padding-top: 48px;
}

/* sidebar */
.docs__sidebar {
  position: sticky; top: 92px; align-self: start;
  max-height: calc(100vh - 112px); overflow-y: auto;
  padding-right: 8px; scrollbar-width: thin; scrollbar-color: var(--border-2) transparent;
}
.docs__sidebar::-webkit-scrollbar { width: 8px; }
.docs__sidebar::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 8px; }
.docs__navtitle {
  font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-dim); margin: 22px 0 8px;
}
.docs__navtitle:first-child { margin-top: 0; }
.docs__nav {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1px; border-left: 1px solid var(--border);
}
.docs__nav a {
  display: block; padding: 6px 14px; font-size: 13.5px; color: var(--text-mut);
  border-left: 2px solid transparent; margin-left: -1px;
  transition: color .15s ease, border-color .15s ease;
}
.docs__nav a:hover { color: var(--text); }
.docs__nav a.is-active { color: var(--acc-1); border-left-color: var(--acc-1); font-weight: 600; }

/* prose */
.doc-prose { min-width: 0; max-width: 840px; }
.doc-section { scroll-margin-top: 96px; }
.doc-section + .doc-section { border-top: 1px solid var(--border); margin-top: 48px; padding-top: 40px; }
.doc-prose h2 {
  font-size: clamp(24px, 3vw, 32px); letter-spacing: -.02em; font-weight: 800; margin: 0 0 8px;
}
.doc-prose h3 { font-size: 18px; letter-spacing: -.01em; margin: 32px 0 10px; }
.doc-prose h4 {
  font-size: 12.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-dim); margin: 22px 0 8px;
}
.doc-prose p { color: var(--text-mut); margin: 12px 0; font-size: 15px; }
.doc-prose ul, .doc-prose ol { color: var(--text-mut); font-size: 15px; padding-left: 22px; margin: 12px 0; }
.doc-prose li { margin: 6px 0; }
.doc-prose li::marker { color: var(--text-dim); }
.doc-prose a { color: var(--acc-1); }
.doc-prose a:hover { text-decoration: underline; }
.doc-prose h3 code { background: none; padding: 0; color: var(--acc-1); }
.doc-prose :not(pre) > code {
  font-family: var(--mono); font-size: .86em;
  background: rgba(255,255,255,.06); padding: 1px 6px; border-radius: 5px; color: var(--acc-1);
  word-break: break-word;
}
.doc-prose pre {
  position: relative; margin: 16px 0; padding: 30px 18px 18px; overflow-x: auto;
  background: #050505; border: 1px solid var(--border); border-radius: 12px;
  font-family: var(--mono); font-size: 13px; line-height: 1.7; color: var(--text);
}
.doc-prose pre code {
  background: none; padding: 0; color: var(--text); font-size: 13px; white-space: pre;
}

/* doc tables */
.doc-table-wrap {
  overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; margin: 16px 0;
  background: var(--surface);
}
.doc-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 520px; }
.doc-table th, .doc-table td {
  padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top;
}
.doc-table thead th {
  background: var(--bg-2); color: var(--text); font-weight: 700; font-size: 13px;
  border-bottom: 1px solid var(--border-2);
}
.doc-table tbody tr:last-child td { border-bottom: 0; }
.doc-table tbody tr:hover { background: rgba(255,255,255,.025); }
.doc-table td { color: var(--text-mut); }
.doc-table code {
  font-family: var(--mono); font-size: 12.5px;
  background: rgba(255,255,255,.06); padding: 1px 5px; border-radius: 5px; color: var(--acc-1);
}

/* callout */
.doc-note {
  margin: 18px 0; padding: 14px 18px; border-radius: 12px;
  background: rgba(124,140,255,.07); border: 1px solid var(--border-2);
  color: var(--text-mut); font-size: 14px;
}
.doc-note strong { color: var(--text); }
.doc-note a { color: var(--acc-1); }

/* ───────── reveal animation ───────── */
.section, .hero__copy, .hero__visual { opacity: 1; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.is-in { opacity: 1; transform: none; }
}

/* ───────── responsive ───────── */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 48px; }
  .hero__sub { max-width: none; }
  .grid--features { grid-template-columns: repeat(2, 1fr); }
  .split, .bench, .privacy__cols { grid-template-columns: 1fr; }
  .panel.is-active { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .cmds__grid { grid-template-columns: repeat(2, 1fr); }
  .nav__actions .ghost-link[aria-label*="commits"] { display: none; }
  .docs { grid-template-columns: 1fr; gap: 0; padding-top: 24px; }
  .docs__sidebar {
    position: static; max-height: none; overflow: visible;
    border: 1px solid var(--border); border-radius: var(--radius);
    background: linear-gradient(180deg, var(--surface), var(--bg-2));
    padding: 18px 20px; margin-bottom: 28px; padding-right: 20px;
  }
  .docs__nav a.is-active { border-left-color: var(--acc-1); }
}
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .nav__links.is-open {
    display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
    background: rgba(0,0,0,.97); backdrop-filter: blur(14px);
    padding: 18px 24px; gap: 4px; border-bottom: 1px solid var(--border); margin: 0;
  }
  .nav__links.is-open a { padding: 10px 0; }
  .ghost-link .gh-stars, .ghost-link .gh-commits { display: none; }
}
@media (max-width: 560px) {
  .grid--features, .cmds__grid { grid-template-columns: 1fr; }
  .section { padding-top: 72px; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .step { grid-template-columns: 1fr; }
  .step__num { display: none; }
  .privacy, .cta { padding: 32px 20px; }
}