/* learn.css — EasyCabinet Learn reference. Warm dark theme, shared with the app
   design language (Hanken Grotesk + JetBrains Mono, amber accent, glass cards).
   One stylesheet reskins the hub + all 30 guide pages. */

@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

*, *::before, *::after { box-sizing: border-box; }

:root {
  --bg: #0d0b08;
  --stage: #0b0907;
  --panel: #15110c;
  --panel-2: #1c160f;
  --rail: rgba(20, 15, 9, .92);
  --line: rgba(240, 228, 210, .10);
  --line-2: rgba(240, 228, 210, .055);
  --text: #f1e9db;
  --muted: #b8ac99;
  --faint: #867c6e;
  --accent: #ec9a3c;
  --amber-2: #f6b563;
  --amber-ink: #1c1304;
  --accent-soft: rgba(236, 154, 60, .14);
  --accent-softer: rgba(236, 154, 60, .07);
  --green: #83dca0;
  --green-chip: rgba(131, 220, 160, .12);
  --radius: 12px;
  --font-ui: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

html { font-size: 16px; }
body {
  font-family: var(--font-ui);
  color: var(--text);
  background:
    radial-gradient(120% 80% at 50% -8%, var(--accent-softer), transparent 55%),
    var(--bg);
  background-attachment: fixed;
  line-height: 1.65;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ── */
.page-wrap,
.learn-article {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

/* ── Top nav / breadcrumb ── */
.site-nav,
.learn-nav {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--muted);
  margin: 0 0 2rem;
  padding: .55rem 0 1rem;
  border-bottom: 1px solid var(--line-2);
}
.site-nav::before,
.learn-nav::before {
  content: "";
  width: 20px; height: 20px; flex: none; border-radius: 6px;
  background: var(--accent); box-shadow: 0 3px 10px rgba(236,154,60,.4);
  background-image: linear-gradient(var(--amber-ink) 0 0), linear-gradient(var(--amber-ink) 0 0);
  background-size: 9px 2px, 2px 9px; background-position: center, center; background-repeat: no-repeat;
}
.site-nav a,
.learn-nav a { color: var(--accent); text-decoration: none; font-weight: 600; }
.site-nav a:hover,
.learn-nav a:hover { color: var(--amber-2); }
.site-nav .sep { margin: 0 .1em; color: var(--faint); }

/* ── Headings ── */
h1 { font-size: clamp(1.9rem, 4vw, 2.4rem); line-height: 1.08; font-weight: 800; letter-spacing: -.02em; margin: .5rem 0 .6rem; }
h2 { font-size: 1.3rem; font-weight: 700; margin: 2.4rem 0 .8rem; padding-bottom: .35rem; border-bottom: 1px solid var(--line); }
h3 { font-size: 1.06rem; font-weight: 700; margin: 1.6rem 0 .4rem; color: var(--amber-2); }

/* ── Prose ── */
p { margin: 0 0 1rem; }
.lead, .article-lead { font-size: 1.15rem; line-height: 1.55; color: var(--muted); margin: 0 0 1.5rem; }
a { color: var(--accent); }
a:hover { color: var(--amber-2); }
ul, ol { padding-left: 1.4rem; margin: 0 0 1rem; }
li { margin-bottom: .35rem; }
strong { color: var(--text); font-weight: 700; }
code { font-family: var(--font-mono); font-size: .9em; background: var(--panel-2); padding: .1em .4em; border-radius: 5px; }

/* ── Key facts card ── */
.key-facts {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .4rem 1.2rem 1rem;
  margin: 0 0 1.75rem;
}
.key-facts h2 { border: none; margin: 1rem 0 .3rem; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); }
.key-facts ul { list-style: none; padding: 0; margin: 0; }
.key-facts li {
  padding: .6rem 0; margin: 0; font-size: .95rem;
  border-bottom: 1px solid var(--line-2); color: var(--muted);
}
.key-facts li:last-child { border-bottom: none; }
.key-facts strong { color: var(--text); }
.key-facts .kf-label { font-weight: 600; min-width: 10rem; color: var(--faint); flex-shrink: 0; }

/* ── Link grid (hub) ── */
.link-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: .6rem; list-style: none; padding: 0; margin: 0 0 1.5rem;
}
.link-grid li { margin: 0; }
.link-grid a {
  display: block; padding: .7rem .85rem; border-radius: 10px;
  text-decoration: none; font-size: .95rem; font-weight: 600; color: var(--text);
  background: var(--panel); border: 1px solid var(--line);
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.link-grid a:hover { transform: translateY(-1px); border-color: var(--accent); background: var(--panel-2); color: var(--amber-2); }

/* ── Related guides ── */
.related-guides {
  margin-top: 2.5rem; padding: 1rem 1.2rem; border-radius: var(--radius);
  background: var(--accent-softer); border: 1px solid var(--line);
}
.related-guides h2 { border: none; margin: 0 0 .5rem; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); }
.related-guides ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.related-guides li { margin: 0; }
.related-guides a {
  display: inline-block; padding: .35rem .8rem; border-radius: 999px;
  font-size: .9rem; text-decoration: none; color: var(--muted);
  background: var(--panel); border: 1px solid var(--line);
}
.related-guides a:hover { border-color: var(--accent); color: var(--text); }

/* ── Tables ── */
.learn-table { width: 100%; border-collapse: collapse; margin: 0 0 1.5rem; font-size: .92rem; display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.learn-table th, .learn-table td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--line); }
.learn-table th { color: var(--faint); font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; }
.learn-table td { font-variant-numeric: tabular-nums; }

/* ── CTA ── */
.cta, .cta-link {
  display: inline-block; background: var(--accent); color: var(--amber-ink);
  padding: .7rem 1.3rem; border-radius: var(--radius); text-decoration: none;
  font-weight: 800; font-size: .98rem; box-shadow: 0 12px 30px rgba(236,154,60,.24);
  transition: transform .14s ease, box-shadow .14s ease;
}
.cta:hover, .cta-link:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(236,154,60,.34); color: var(--amber-ink); }
/* when .cta wraps a <p><a> (guide pages) don't double-style the wrapper */
section.cta { background: none; box-shadow: none; padding: 0; margin: 2rem 0 0; }
section.cta a { display: inline-block; background: var(--accent); color: var(--amber-ink); padding: .7rem 1.3rem; border-radius: var(--radius); text-decoration: none; font-weight: 800; box-shadow: 0 12px 30px rgba(236,154,60,.24); }
section.cta a:hover { transform: translateY(-2px); }

/* ── Footer ── */
.page-footer { margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: .85rem; color: var(--faint); }

/* ── Responsive ── */
@media (max-width: 520px) {
  h1 { font-size: 1.55rem; }
  .link-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .link-grid a, .cta, .cta-link, section.cta a { transition: none; }
}