:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --surface-2: #1c1c1c;
  --text: #fafafa;
  --muted: #9ca3af;
  --border: #2a2a2a;
  --rust: #e43717;
  --accent: #3b82f6;
  --ok: #10b981;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); color: var(--text); }
.rs { color: var(--rust); }

.site-header, .site-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; border-bottom: 1px solid var(--border);
}
.site-footer { border-top: 1px solid var(--border); border-bottom: none; color: var(--muted); font-size: 13px; justify-content: center; gap: 6px; text-align: center; }
.brand { font-family: var(--mono); font-weight: 700; font-size: 18px; color: var(--text); }
.site-header nav { display: flex; gap: 18px; align-items: center; font-family: var(--mono); font-size: 13px; }
.cart { color: var(--muted); }
.cart #cart-count { color: var(--ok); font-weight: 700; }

main { max-width: 1100px; margin: 0 auto; padding: 0 24px 72px; }

.hero { padding: 56px 0 24px; }
.hero h1 { font-size: 40px; line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.lede { font-size: 17px; color: var(--muted); max-width: 74ch; margin: 0 0 18px; }
.lede strong { color: var(--text); }
.badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  font-family: var(--mono); font-size: 12px; color: var(--muted);
  background: var(--surface); border: 1px solid var(--border);
  padding: 5px 10px; border-radius: 999px;
}
.badge-ok { color: var(--ok); border-color: rgba(16,185,129,.35); }

.section { font-size: 22px; margin: 48px 0 18px; letter-spacing: -0.01em; }
.section small { color: var(--muted); font-weight: 400; font-size: 14px; }

/* ── storefront grid ─────────────────────────────────────────────────────── */
.grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
@media (max-width: 820px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 18px; display: flex; flex-direction: column;
  gap: 6px; transition: border-color .15s, transform .15s;
}
.card:hover { border-color: #3a3a3a; transform: translateY(-2px); }
.card .thumb { font-size: 44px; line-height: 1; }
.card h3 { margin: 6px 0 0; font-size: 17px; }
.card .blurb { color: var(--muted); font-size: 13px; margin: 0; flex: 1; }
.card .price { color: var(--text); font-weight: 700; font-size: 18px; margin: 4px 0; }
.tags { list-style: none; padding: 0; margin: 0 0 8px; display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
  font-family: var(--mono); font-size: 10px; letter-spacing: .05em; color: var(--muted);
  background: var(--bg); border: 1px solid var(--border); padding: 2px 7px; border-radius: 6px;
}
.buy {
  margin-top: auto; font: inherit; font-size: 13px; font-weight: 600; color: #fff;
  background: var(--rust); border: 1px solid var(--rust); border-radius: 9px;
  padding: 8px 12px; cursor: pointer;
}
.buy:hover { filter: brightness(1.08); }
.buy:disabled { opacity: .7; cursor: default; background: var(--ok); border-color: var(--ok); }

/* ── compiler controls + panels ──────────────────────────────────────────── */
.controls { display: flex; gap: 8px; align-items: center; }
.compiler-controls { margin: 0 0 16px; }
select, button {
  font: inherit; font-size: 13px; color: var(--text);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; cursor: pointer;
}
button:hover { border-color: var(--muted); }
button.primary { background: var(--rust); border-color: var(--rust); color: #fff; font-weight: 600; }
button.primary:hover { filter: brightness(1.08); }
button:disabled { opacity: .6; cursor: default; }

.components { display: flex; flex-direction: column; gap: 16px; }
.comp { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 820px) { .comp { grid-template-columns: 1fr; } }
.pane {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; display: flex; flex-direction: column;
  min-height: 220px;
}
.pane-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.pane-head label { font-family: var(--mono); font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.out {
  flex: 1; margin: 0; padding: 14px;
  font-family: var(--mono); font-size: 12.5px; line-height: 1.5;
  background: transparent; color: #e6edf3; white-space: pre; overflow: auto;
}
.out code { display: block; color: #e6edf3; }
.out .err, .out code.err { color: #f87171; white-space: pre-wrap; }
.stats { display: flex; gap: 8px; flex-wrap: wrap; }
.stat { font-family: var(--mono); font-size: 11px; color: var(--muted); background: var(--bg); border: 1px solid var(--border); padding: 3px 8px; border-radius: 6px; }
.stat.ok { color: var(--ok); border-color: rgba(16,185,129,.35); }

/* ── nav links ───────────────────────────────────────────────────────────── */
.site-header nav a { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.site-header nav a:hover { color: var(--text); text-decoration: none; }

/* ── card link + rating ──────────────────────────────────────────────────── */
.card-link { color: inherit; display: block; }
.card-link:hover { text-decoration: none; }
.card-link:hover h3 { color: var(--accent); }
.card.mini { gap: 4px; }
.card.mini h3 { font-size: 15px; }
.rating { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); margin: 2px 0; }
.rating .stars { letter-spacing: 1px; }
.rating .star { color: #3a3a3a; }
.rating .star.on { color: #f5a623; }
.rating-num { color: var(--text); font-weight: 600; }

/* ── add-to-cart feedback ────────────────────────────────────────────────── */
.buy.added { background: var(--ok); border-color: var(--ok); }
.cart #cart-count { color: var(--ok); font-weight: 700; }

/* ── home CTA strip ──────────────────────────────────────────────────────── */
.cta-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 40px 0 0; }
@media (max-width: 760px) { .cta-strip { grid-template-columns: 1fr; } }
.cta {
  display: flex; flex-direction: column; gap: 4px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 20px; color: var(--text); transition: border-color .15s, transform .15s;
}
.cta:hover { border-color: var(--rust); transform: translateY(-2px); text-decoration: none; }
.cta-emoji { font-size: 24px; }
.cta-title { font-weight: 700; font-size: 16px; }
.cta-sub { color: var(--muted); font-size: 13px; }

/* ── breadcrumbs + note ──────────────────────────────────────────────────── */
.crumbs { font-family: var(--mono); font-size: 13px; color: var(--muted); padding: 24px 0 8px; }
.crumbs a { color: var(--accent); }
.crumbs .sep { margin: 0 6px; opacity: .5; }
.note { color: var(--muted); font-size: 13px; margin: 28px 0 0; max-width: 80ch; }
.note code { color: var(--text); }

/* ── product detail ──────────────────────────────────────────────────────── */
.detail { display: grid; grid-template-columns: 280px 1fr; gap: 28px; margin-top: 8px; }
@media (max-width: 760px) { .detail { grid-template-columns: 1fr; } }
.detail-media {
  font-size: 120px; line-height: 1; text-align: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  display: flex; align-items: center; justify-content: center; min-height: 240px;
}
.detail-body h1 { font-size: 30px; margin: 0 0 8px; letter-spacing: -0.01em; }
.price.big { font-size: 26px; }
.stock { font-family: var(--mono); font-size: 12px; margin: 6px 0; }
.stock.in { color: var(--ok); }
.stock.out { color: #f87171; }
.specs { width: 100%; border-collapse: collapse; margin: 14px 0 18px; font-size: 14px; }
.specs th, .specs td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.specs th { color: var(--muted); font-weight: 500; width: 38%; }
.buy.big { padding: 11px 18px; font-size: 14px; }
.related { margin-top: 40px; }

/* ── /how pipeline ───────────────────────────────────────────────────────── */
.pipeline { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
@media (min-width: 760px) { .pipeline { flex-direction: row; align-items: stretch; } }
.step {
  flex: 1; display: flex; flex-direction: column; gap: 4px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px;
}
.step.hot { border-color: var(--rust); background: rgba(228,55,23,.06); }
.step-k { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.step.hot .step-k { color: var(--rust); }
.step-t { font-family: var(--mono); font-weight: 700; font-size: 14px; }
.step-d { color: var(--muted); font-size: 12.5px; }