.guide { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 64px; padding-top: 56px; padding-bottom: 100px; }
.nav-links a[aria-current="page"] { color: var(--fg); }
.toc { position: sticky; top: 100px; align-self: start; display: grid; gap: 4px; }
.toc a { color: var(--muted); text-decoration: none; font-size: 14.5px; padding: 6px 12px; border-radius: 8px; border-left: 2px solid transparent; transition: color 0.2s, background 0.2s; }
.toc a:hover { color: var(--fg); background: var(--surface); }
@media (max-width: 900px) { .guide { grid-template-columns: 1fr; gap: 24px; } .toc { position: static; grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .toc { grid-template-columns: 1fr; } }

.doc { max-width: 720px; }
.doc h1 { font-size: clamp(34px, 4.6vw, 48px); font-weight: 700; }
.intro { margin-top: 16px; font-size: 19px; color: var(--muted); }
.doc section { padding-top: 56px; scroll-margin-top: 80px; }
.doc h2 { font-size: 26px; margin-bottom: 14px; }
.doc h3 { font-size: 17px; margin-bottom: 6px; }
.doc p, .doc li, .doc dd { color: var(--muted); }
.doc p + p { margin-top: 12px; }
.doc ol { padding-left: 22px; display: grid; gap: 10px; margin: 0; }
.doc ol + p { margin-top: 16px; }
.doc b { color: var(--fg); font-weight: 600; }
.doc code { font: 14px/1 ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; color: var(--fg); }
kbd { font: 600 13px/1 "Geist", system-ui, sans-serif; padding: 4px 8px; border-radius: 7px; border: 1px solid var(--line); border-bottom-width: 2px; background: var(--surface); color: var(--fg); }

.callout { margin-top: 18px; padding: 16px 18px; border-radius: 14px; background: var(--accent-soft); color: var(--fg) !important; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 18px; }
@media (max-width: 760px) { .cards { grid-template-columns: 1fr; } }
.card { padding: 18px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.card p { font-size: 15px; }

.controls { margin: 18px 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.controls > div { display: grid; grid-template-columns: 180px 1fr; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.controls dt { font-weight: 600; }
.controls dd { margin: 0; }
@media (max-width: 560px) { .controls > div { grid-template-columns: 1fr; gap: 4px; } }

.keys { width: 100%; border-collapse: collapse; margin-bottom: 14px; }
.keys td { padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.keys td:first-child { width: 200px; white-space: nowrap; }

.doc details { border-bottom: 1px solid var(--line); }
.doc summary { padding: 16px 32px 16px 0; font-size: 16px; }
.doc details p { padding-bottom: 16px; }