/* Docs-only typography on top of app.css.
 * Long-form reading layout: narrower column, looser line height, larger body. */

.docs-body {
  background: var(--bg);
  color: var(--text);
}

.docs-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.docs-nav { display: flex; gap: 14px; }
.docs-nav a {
  color: var(--text-dim);
  font-size: 13px;
}
.docs-nav a:hover { color: var(--text); }

.docs-main {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.docs-article {
  font-size: 15px;
  line-height: 1.7;
}

.docs-article h1 {
  font-size: 2.4rem;
  margin: 0 0 6px;
  line-height: 1.15;
}
.docs-lead {
  font-size: 1.1rem;
  color: var(--text-dim);
  margin: 0 0 32px;
}

.docs-article h2 {
  margin: 48px 0 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 1.55rem;
  color: var(--text);
  letter-spacing: -0.01em;
  text-transform: none;
}
.docs-article h2:first-of-type { border-top: none; padding-top: 0; }

.docs-article h3 {
  margin: 28px 0 8px;
  font-size: 1.1rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--accent);
}

.docs-article p { margin: 0 0 14px; }
.docs-article p code,
.docs-article li code,
.docs-article dd code,
.docs-article td code {
  background: var(--bg-3);
  color: var(--accent);
  font-size: 13px;
  padding: 1px 6px;
}

.docs-article ul,
.docs-article ol {
  margin: 0 0 18px;
  padding-left: 22px;
}
.docs-article li { margin: 6px 0; }

.docs-toc {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  margin: 0 0 36px;
  font-size: 13.5px;
}
.docs-toc strong {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.docs-toc ol { margin: 0; padding-left: 22px; }
.docs-toc a { color: var(--text); }
.docs-toc a:hover { color: var(--accent); }

.docs-callout {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 16px 20px;
  margin: 24px 0;
}
.docs-callout h3 {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.docs-callout-note {
  color: var(--text-dim);
  font-size: 13.5px;
  font-style: italic;
  margin: 8px 0 0;
}

.docs-table-wrap {
  overflow-x: auto;
  margin: 18px 0 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
}
.docs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 640px;
}
.docs-table th,
.docs-table td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.docs-table thead th {
  background: var(--bg-2);
  color: var(--text);
  font-weight: 600;
  position: sticky;
  top: 0;
}
.docs-table tbody tr:last-child td { border-bottom: none; }
.docs-table tbody td:first-child {
  color: var(--text-dim);
  font-weight: 500;
  white-space: nowrap;
}

.docs-decision {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 22px;
  list-style: disc;
}
.docs-decision li { margin: 8px 0; }

.docs-glossary {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 18px;
  margin: 16px 0 0;
}
.docs-glossary dt {
  color: var(--accent);
  font-weight: 600;
  font-size: 13.5px;
}
.docs-glossary dd {
  margin: 0;
  font-size: 14px;
  color: var(--text);
}

@media (max-width: 640px) {
  .docs-main { padding: 28px 18px 60px; }
  .docs-article { font-size: 14.5px; }
  .docs-article h1 { font-size: 2rem; }
  .docs-glossary { grid-template-columns: 1fr; gap: 4px 0; }
  .docs-glossary dt { margin-top: 12px; }
}

/* ---------- basic visual language ---------- */
.docs-body { min-height: 100vh; }
.docs-topbar {
  max-width: 1080px; margin: 0 auto; padding: 22px 28px 0;
  background: rgba(18, 16, 14, .88); border-bottom: 0; backdrop-filter: blur(12px);
}
.docs-topbar .brand { display: flex; align-items: baseline; gap: 12px; }
.brand-badge {
  padding: 3px 8px; border: 1px solid rgba(255, 107, 74, .35); border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); font-family: var(--mono); font-size: 9px;
  font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
}
.docs-nav { display: flex; align-items: center; gap: 20px; }
.docs-nav a { color: var(--text-dim); font-size: 13px; }
.docs-nav a:hover { color: var(--text); }
.docs-main { max-width: 820px; padding: 74px 28px 90px; }
.docs-article { font-size: 15px; line-height: 1.7; }
.docs-kicker {
  margin: 0 0 18px; color: var(--accent); font-family: var(--mono); font-size: 10px;
  letter-spacing: .14em; text-transform: uppercase;
}
.docs-article h1 {
  margin: 0 0 18px; color: var(--text); font-family: var(--display); font-size: clamp(54px, 8vw, 84px);
  font-weight: 300; line-height: .95; letter-spacing: -.05em;
}
.docs-lead {
  max-width: 44ch; margin: 0 0 38px; color: var(--text-dim); font-family: var(--display);
  font-size: clamp(20px, 3vw, 27px); font-weight: 300; line-height: 1.35; letter-spacing: -.015em;
}
.docs-article h2 {
  margin: 64px 0 18px; padding-top: 18px; border-top: 1px solid var(--border);
  color: var(--text); font-family: var(--display); font-size: clamp(28px, 4vw, 39px); font-weight: 400;
  line-height: 1.08; letter-spacing: -.025em; text-transform: none;
}
.docs-article h2:first-of-type { border-top: 0; padding-top: 0; }
.docs-article h3 {
  margin: 34px 0 9px; color: var(--accent); font-family: var(--ui); font-size: 12px;
  font-weight: 500; letter-spacing: .1em; line-height: 1.4; text-transform: uppercase;
}
.docs-article p { margin: 0 0 16px; }
.docs-article strong { color: var(--text); font-weight: 500; }
.docs-article em { color: var(--text-dim); }
.docs-article p code, .docs-article li code, .docs-article dd code, .docs-article td code {
  background: var(--bg-2); border: 1px solid var(--border); color: var(--accent); font-size: 11.5px; padding: 2px 6px;
}
.docs-article ul, .docs-article ol { margin: 0 0 22px; padding-left: 24px; }
.docs-article li { margin: 8px 0; }
.docs-toc {
  margin: 0 0 48px; padding: 19px 22px; background: var(--bg-2); border: 1px solid var(--border);
  border-left: 2px solid var(--accent); border-radius: 0 14px 14px 0; font-size: 13px;
}
.docs-toc strong { margin-bottom: 10px; color: var(--text-faint); font-family: var(--mono); font-size: 10px; letter-spacing: .13em; }
.docs-toc ol { margin: 0; padding-left: 22px; }
.docs-toc li { margin: 4px 0; }
.docs-toc a { color: var(--text-dim); }
.docs-toc a:hover { color: var(--text); }
.docs-callout {
  margin: 32px 0; padding: 22px 24px; background: var(--bg-2); border: 1px solid var(--border);
  border-left: 2px solid var(--accent); border-radius: 0 14px 14px 0;
}
.docs-callout h3 { margin: 0 0 13px; color: var(--text); font-family: var(--display); font-size: 23px; font-weight: 400; letter-spacing: -.01em; text-transform: none; }
.docs-callout ul { margin-bottom: 12px; }
.docs-callout-note { color: var(--text-faint); font-size: 12.5px; line-height: 1.6; }
.docs-table-wrap { margin: 25px 0 34px; border: 1px solid var(--border); border-radius: 14px; }
.docs-table { font-size: 12px; min-width: 640px; }
.docs-table th, .docs-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.docs-table thead th { background: var(--bg-2); color: var(--text); font-family: var(--mono); font-size: 10px; font-weight: 400; letter-spacing: .06em; text-transform: uppercase; }
.docs-table tbody tr:hover { background: rgba(255, 107, 74, .035); }
.docs-table tbody td:first-child { color: var(--text-dim); font-weight: 400; }
.docs-decision { margin: 20px 0 28px; padding: 16px 24px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 14px; list-style: none; }
.docs-decision li { position: relative; margin: 10px 0; padding-left: 18px; }
.docs-decision li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }
.docs-glossary { gap: 12px 22px; margin-top: 20px; }
.docs-glossary dt { color: var(--accent); font-family: var(--mono); font-size: 10px; font-weight: 500; letter-spacing: .07em; text-transform: uppercase; }
.docs-glossary dd { color: var(--text-dim); font-size: 14px; line-height: 1.65; }

@media (max-width: 640px) {
  .docs-topbar { align-items: flex-start; flex-direction: column; gap: 18px; padding-left: 18px; padding-right: 18px; }
  .docs-nav { width: 100%; justify-content: space-between; gap: 10px; }
  .docs-main { padding: 55px 18px 64px; }
  .docs-article { font-size: 14.5px; }
  .docs-article h1 { font-size: clamp(54px, 16vw, 76px); }
  .docs-glossary { grid-template-columns: 1fr; gap: 4px; }
  .docs-glossary dt { margin-top: 14px; }
  .docs-table-wrap { margin-left: -2px; margin-right: -2px; }
}