/* ─── Agentic Schematics — site styles ────────────────────────── */

:root {
  --bg: #0b0d12;
  --bg-alt: #11141c;
  --panel: #161a24;
  --panel-2: #1b2030;
  --border: #232a3d;
  --text: #e6e9f0;
  --muted: #8b93a7;
  --accent: #22d3ee;
  --accent-2: #a78bfa;
  --green: #34d399;
  --red: #f87171;
  --yellow: #fbbf24;
  --mono: "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --radius: 12px;
  --maxw: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
code { font-family: var(--mono); font-size: 0.92em; background: var(--panel-2); padding: 0.1em 0.4em; border-radius: 4px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }

/* ─── Nav ────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem 2rem; max-width: var(--maxw); margin: 0 auto;
  background: rgba(11, 13, 18, 0.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
}
.nav-brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; color: var(--text); }
.nav-logo { font-size: 1.2rem; }
.nav-links { display: flex; gap: 1.4rem; }
.nav-links a { color: var(--muted); font-size: 0.95rem; transition: color 0.15s; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-cta {
  font-size: 0.9rem; padding: 0.4rem 0.9rem;
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); transition: border-color 0.15s;
}
.nav-cta:hover { border-color: var(--accent); text-decoration: none; }

/* ─── Hero ───────────────────────────────────────────────────── */
.hero {
  position: relative;
  text-align: center;
  padding: 6rem 2rem 5rem;
  max-width: var(--maxw); margin: 0 auto;
  overflow: hidden;
}
.hero-grid {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}
.hero-kicker {
  position: relative;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.3em;
  color: var(--accent); margin-bottom: 1.4rem;
}
.hero-title {
  position: relative;
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  line-height: 1.12; font-weight: 800; letter-spacing: -0.02em;
  margin-bottom: 1.6rem;
}
.gradient {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  position: relative;
  max-width: 720px; margin: 0 auto 2.4rem;
  color: var(--muted); font-size: 1.12rem;
}
.hero-actions { position: relative; display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 0.75rem 1.6rem; border-radius: 10px;
  font-weight: 600; font-size: 0.98rem; transition: transform 0.12s, box-shadow 0.12s;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b0d12;
}
.btn-primary:hover { box-shadow: 0 6px 24px rgba(34, 211, 238, 0.35); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); }
.hero-stats {
  position: relative;
  display: flex; justify-content: center; gap: 3rem;
  margin-top: 4rem; padding-top: 2.4rem;
  border-top: 1px solid var(--border);
}
.stat { display: flex; flex-direction: column; }
.stat-num { font-size: 2.2rem; font-weight: 800; color: var(--text); }
.stat-label { font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }

/* ─── Sections ───────────────────────────────────────────────── */
.section { max-width: var(--maxw); margin: 0 auto; padding: 5rem 2rem; }
.section.alt { background: var(--bg-alt); max-width: none; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section.alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section-title { font-size: 2rem; font-weight: 800; margin-bottom: 0.8rem; letter-spacing: -0.01em; }
.section-lede { color: var(--muted); max-width: 640px; margin-bottom: 2.6rem; font-size: 1.05rem; }

/* ─── Cards ──────────────────────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.6rem; transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: rgba(34, 211, 238, 0.4); transform: translateY(-2px); }
.card-icon { font-size: 1.6rem; margin-bottom: 0.8rem; }
.card h3 { font-size: 1.08rem; margin-bottom: 0.5rem; }
.card p, .card li { color: var(--muted); font-size: 0.94rem; }
.card li + li { margin-top: 0.4rem; }

/* ─── Flow ───────────────────────────────────────────────────── */
.flow { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 3rem; }
.flow-step { display: flex; gap: 1.2rem; align-items: flex-start; }
.flow-num {
  flex-shrink: 0; width: 2.2rem; height: 2.2rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--panel-2); border: 1px solid var(--accent);
  color: var(--accent); font-weight: 700; font-family: var(--mono);
}
.flow-step h3 { font-size: 1.05rem; margin-bottom: 0.2rem; }
.flow-step p { color: var(--muted); font-size: 0.95rem; }

/* ─── Code window ────────────────────────────────────────────── */
.code-window {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; max-width: 760px; margin: 0 auto;
}
.code-head { display: flex; align-items: center; gap: 0.45rem; padding: 0.7rem 1rem; background: var(--panel-2); border-bottom: 1px solid var(--border); }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-r { background: var(--red); } .dot-y { background: var(--yellow); } .dot-g { background: var(--green); }
.code-title { margin-left: 0.5rem; font-size: 0.82rem; color: var(--muted); font-family: var(--mono); }
.code-body { padding: 1.2rem 1.4rem; overflow-x: auto; font-family: var(--mono); font-size: 0.85rem; line-height: 1.65; color: #c9d1e4; }

/* ─── Catalog ────────────────────────────────────────────────── */
.catalog { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.4rem; }
.catalog-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.6rem; display: flex; flex-direction: column; gap: 0.8rem;
  transition: border-color 0.15s, transform 0.15s;
}
.catalog-card:hover { border-color: rgba(34, 211, 238, 0.4); transform: translateY(-2px); }
.catalog-card h3 { font-size: 1.12rem; }
.catalog-card .cat-desc { color: var(--muted); font-size: 0.94rem; flex: 1; }
.catalog-card .cat-meta { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); display: flex; gap: 0.75rem; flex-wrap: wrap; }
.catalog-card .cat-meta span { background: var(--panel-2); padding: 0.15rem 0.5rem; border-radius: 6px; }
.catalog-card .cat-actions { display: flex; gap: 0.6rem; margin-top: 0.4rem; }
.cat-btn {
  flex: 1; text-align: center; padding: 0.55rem 0.8rem; border-radius: 8px;
  font-size: 0.88rem; font-weight: 600; border: 1px solid var(--border);
  color: var(--text); background: var(--panel-2); cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.cat-btn:hover { border-color: var(--accent); background: var(--panel); }
.cat-btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: none; color: #0b0d12; }
.cat-btn.primary:hover { box-shadow: 0 4px 16px rgba(34, 211, 238, 0.3); }
.catalog-empty { color: var(--muted); text-align: center; padding: 3rem; grid-column: 1 / -1; }

/* ─── Principles ─────────────────────────────────────────────── */
.principles { padding-left: 1.2rem; margin-top: 0.6rem; }
.principles li { color: var(--muted); font-size: 0.94rem; margin-bottom: 0.5rem; }
.card ul.principles { list-style: disc; }
.card ol.principles { list-style: decimal; }
.card p + p { margin-top: 0.8rem; }

/* ─── Footer ─────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border); padding: 2rem; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: 0.9rem; color: var(--muted); }

/* ─── Toast ──────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(120%);
  background: var(--green); color: #06281d; font-weight: 600; font-size: 0.92rem;
  padding: 0.7rem 1.4rem; border-radius: 10px; z-index: 100;
  transition: transform 0.3s ease; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--red); color: #2a0a0a; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 820px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero { padding: 4rem 1.4rem 3rem; }
  .hero-stats { gap: 1.6rem; }
  .section { padding: 3.5rem 1.4rem; }
  .stat-num { font-size: 1.7rem; }
}

.cat-head { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; }
.cat-kind {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.06em;
  text-transform: uppercase; white-space: nowrap;
  color: var(--muted); background: var(--panel-2);
  padding: 0.2rem 0.55rem; border-radius: 6px; border: 1px solid var(--border);
}
.cat-kind.kind-authoring { color: var(--accent); border-color: rgba(34, 211, 238, 0.35); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card, .catalog-card { transition: none; }
}