/* ================================================================
   Vector Dynamics — Minimal stylesheet (Ollama-inspired)
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Variables ─────────────────────────────────────────────────── */
:root {
  --bg:       #0c0c0c;
  --bg-2:     #111111;
  --bg-3:     #161616;
  --border:   #222222;
  --border-2: #2e2e2e;

  --text:     #f2f2f2;
  --text-2:   #888888;
  --text-3:   #444444;

  --accent:   #ffffff;
  --blue:     #4080ff;

  --font:     'Inter', system-ui, sans-serif;
  --mono:     'JetBrains Mono', 'Fira Code', monospace;

  --nav-h:    60px;
  --max-w:    1100px;
  --ease:     0.18s ease;

  --radius:   8px;
  --radius-sm: 5px;
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ── Typography ────────────────────────────────────────────────── */
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 600; line-height: 1.25; letter-spacing: -0.025em; }
h3 { font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
p  { color: var(--text-2); font-size: 0.975rem; line-height: 1.75; }

/* ── Layout ────────────────────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }
.section    { padding: 88px 0; }
.section-sm { padding: 56px 0; }
.divider    { height: 1px; background: var(--border); }

/* ── Navigation ────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(12,12,12,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 9px;
}
.nav__logo img {
  height: 26px;
  width: auto;
  display: block;
}
.nav__logo-text {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav__links a {
  padding: 6px 13px;
  font-size: 0.875rem;
  font-weight: 450;
  color: var(--text-2);
  border-radius: var(--radius-sm);
  transition: color var(--ease);
}
.nav__links a:hover,
.nav__links a.active { color: var(--text); }
.nav__cta { display: flex; align-items: center; gap: 8px; }

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 20px;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
  white-space: nowrap;
  line-height: 1;
}
.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn-primary:hover { background: #d8d8d8; border-color: #d8d8d8; }

.btn-outline {
  background: transparent;
  color: var(--text-2);
  border-color: var(--border-2);
}
.btn-outline:hover { color: var(--text); border-color: #444; }

.btn-lg { padding: 13px 26px; font-size: 0.95rem; }

/* ── Footer ────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 52px 0 32px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.footer__brand .nav__logo { margin-bottom: 12px; }
.footer__brand p { font-size: 0.855rem; max-width: 240px; }
.footer__col h4 {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 14px;
}
.footer__col a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-2);
  padding: 3px 0;
  transition: color var(--ease);
}
.footer__col a:hover { color: var(--text); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.footer__bottom p { font-size: 0.82rem; color: var(--text-3); margin: 0; }

/* ── Code ──────────────────────────────────────────────────────── */
pre, code { font-family: var(--mono); font-size: 0.87rem; }
pre {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  overflow-x: auto;
  line-height: 1.7;
  color: #c8d3f5;
}
code {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.85em;
  color: #c8d3f5;
}
pre code { background: none; border: none; padding: 0; color: inherit; }

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .nav__links { display: none; }
}
@media (max-width: 580px) {
  .footer__grid { grid-template-columns: 1fr; }
  .nav__cta .btn-outline { display: none; }
}


/* ================================================================
   INDEX PAGE
   ================================================================ */

/* Hero */
.hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 88px;
  border-bottom: 1px solid var(--border);
}
.hero__eyebrow {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}
.hero__title { margin-bottom: 20px; }
.hero__sub {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 500px;
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}
.hero__win-note {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  color: var(--text-3);
}
.hero__win-note svg { opacity: 0.5; }
.hero__checks {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 28px;
}
.hero__check {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  color: var(--text-2);
}
.hero__check svg { color: var(--text-3); flex-shrink: 0; }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.feature-item {
  background: var(--bg);
  padding: 28px 26px;
  transition: background var(--ease);
}
.feature-item:hover { background: var(--bg-2); }
.feature-icon {
  font-size: 1.25rem;
  margin-bottom: 14px;
  line-height: 1;
}
.feature-item h3 { margin-bottom: 7px; font-size: 0.95rem; }
.feature-item p  { font-size: 0.875rem; }

@media (max-width: 820px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .features-grid { grid-template-columns: 1fr; } }

/* Models */
.models-list {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.model-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  transition: background var(--ease);
  gap: 16px;
}
.model-row:last-child { border-bottom: none; }
.model-row:hover { background: var(--bg-2); }
.model-row__left { display: flex; align-items: center; gap: 14px; }
.model-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border-2);
  flex-shrink: 0;
}
.model-dot.fast   { background: #4ade80; }
.model-dot.good   { background: #60a5fa; }
.model-dot.power  { background: #a78bfa; }
.model-name { font-size: 0.95rem; font-weight: 500; }
.model-desc { font-size: 0.82rem; color: var(--text-3); margin-top: 2px; }
.model-row__right { display: flex; align-items: center; gap: 20px; flex-shrink: 0; }
.model-size { font-size: 0.82rem; color: var(--text-3); font-family: var(--mono); }
.model-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-3);
  padding: 3px 9px;
  border: 1px solid var(--border-2);
  border-radius: 100px;
  white-space: nowrap;
}
.model-label.rec { color: var(--text-2); border-color: #3a3a3a; }

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.step { }
.step__num {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.step h3 { font-size: 1rem; margin-bottom: 8px; }
.step p  { font-size: 0.88rem; }

@media (max-width: 700px) { .steps-grid { grid-template-columns: 1fr; gap: 28px; } }

/* CTA banner */
.cta-banner {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 56px 48px;
  text-align: center;
  background: var(--bg-2);
}
.cta-banner h2 { margin-bottom: 12px; }
.cta-banner p  { max-width: 400px; margin: 0 auto 28px; }
@media (max-width: 580px) { .cta-banner { padding: 36px 22px; } }

/* Section header */
.section-header { margin-bottom: 40px; }
.section-header h2 { margin-bottom: 10px; }
.section-header p  { max-width: 480px; }


/* ================================================================
   ABOUT PAGE
   ================================================================ */
.page-hero {
  padding-top: calc(var(--nav-h) + 72px);
  padding-bottom: 72px;
  border-bottom: 1px solid var(--border);
  max-width: 640px;
}
.page-hero .eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 20px;
}
.page-hero h1 { margin-bottom: 18px; }
.page-hero p  { font-size: 1.05rem; max-width: 500px; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.value-item {
  background: var(--bg);
  padding: 28px 24px;
  transition: background var(--ease);
}
.value-item:hover { background: var(--bg-2); }
.value-icon { font-size: 1.2rem; margin-bottom: 12px; line-height: 1; }
.value-item h3 { margin-bottom: 7px; font-size: 0.95rem; }
.value-item p  { font-size: 0.875rem; }

@media (max-width: 820px) { .values-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 520px) { .values-grid { grid-template-columns: 1fr; } }

.mission-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.mission-split p { margin-bottom: 16px; }
.mission-split p:last-child { margin-bottom: 0; }

.stats-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.stat-row:last-child { border-bottom: none; }
.stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text);
  flex-shrink: 0;
  min-width: 56px;
}
.stat-label { font-size: 0.875rem; color: var(--text-2); }

@media (max-width: 720px) { .mission-split { grid-template-columns: 1fr; gap: 36px; } }

.prose { max-width: 640px; }
.prose h2 { margin-bottom: 16px; }
.prose p  { margin-bottom: 18px; }
.prose p:last-child { margin-bottom: 0; }

.note-box {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  display: flex;
  gap: 16px;
  margin-top: 32px;
}
.note-box__icon { font-size: 1.2rem; flex-shrink: 0; padding-top: 1px; }
.note-box h3 { margin-bottom: 6px; font-size: 0.95rem; }
.note-box p  { font-size: 0.875rem; margin: 0; }


/* ================================================================
   DOCS PAGE
   ================================================================ */
.docs-layout {
  display: grid;
  grid-template-columns: 224px 1fr;
  min-height: calc(100vh - var(--nav-h));
  padding-top: var(--nav-h);
  max-width: 1200px;
  margin: 0 auto;
}
.docs-sidebar {
  border-right: 1px solid var(--border);
  padding: 28px 0;
  position: sticky;
  top: var(--nav-h);
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
}
.docs-sidebar::-webkit-scrollbar { width: 3px; }
.docs-sidebar::-webkit-scrollbar-thumb { background: var(--border-2); }

.docs-nav-group { margin-bottom: 24px; padding: 0 16px; }
.docs-nav-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-3);
  margin-bottom: 6px;
  padding: 0 8px;
}
.docs-nav-link {
  display: block;
  padding: 6px 8px;
  font-size: 0.875rem;
  color: var(--text-2);
  border-radius: var(--radius-sm);
  transition: color var(--ease), background var(--ease);
  margin-bottom: 1px;
}
.docs-nav-link:hover { color: var(--text); background: var(--bg-2); }
.docs-nav-link.active { color: var(--text); background: var(--bg-3); }

.docs-content {
  padding: 40px 56px 96px;
  max-width: 760px;
}
.docs-content h1 { font-size: 1.8rem; margin-bottom: 10px; }

.docs-content h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 44px 0 14px;
  padding-top: 44px;
  border-top: 1px solid var(--border);
}
.docs-content > section h2 { border-top: none; padding-top: 0; margin-top: 0; }

.docs-content h3 { font-size: 0.95rem; font-weight: 600; margin: 24px 0 8px; color: var(--text); }
.docs-content p  { margin-bottom: 14px; font-size: 0.95rem; }
.docs-content ul { margin: 10px 0 18px; }
.docs-content ul li {
  padding: 4px 0 4px 16px;
  position: relative;
  font-size: 0.925rem;
  color: var(--text-2);
}
.docs-content ul li::before {
  content: '–';
  position: absolute; left: 0;
  color: var(--text-3);
}
.docs-content pre { margin: 16px 0; }

.callout {
  display: flex;
  gap: 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 0.9rem;
  color: var(--text-2);
}
.callout-warn { border-color: #3a2e00; background: #1a1500; }
.callout-icon { flex-shrink: 0; }

.req-table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 0.9rem; }
.req-table th {
  background: var(--bg-2);
  padding: 9px 16px;
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  border-bottom: 1px solid var(--border);
}
.req-table td { padding: 10px 16px; border-bottom: 1px solid var(--border); color: var(--text-2); }
.req-table tr:last-child td { border-bottom: none; }
.req-table td:first-child { color: var(--text); font-weight: 500; }

kbd {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 4px;
  padding: 1px 7px;
  font-family: var(--mono);
  font-size: 0.82em;
  color: var(--text-2);
}

@media (max-width: 860px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .docs-content { padding: 28px 22px 64px; }
}