/* =====================================================================
   Shared handbook layout — sidebar TOC, content typography, code, callouts.
   Used by learn.html and every specialized handbook (sql, python, dax, ...).
   Requires site.css (tokens) loaded first.
   ===================================================================== */

.layout{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:248px 1fr;gap:0}
@media(max-width:900px){.layout{grid-template-columns:1fr}.toc{display:none!important}}

/* sidebar TOC */
.toc{position:sticky;top:57px;align-self:start;height:calc(100vh - 57px);overflow-y:auto;padding:22px 14px 60px;border-right:1px solid var(--line)}
.toc .grp{font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;color:var(--faint);font-weight:700;margin:18px 10px 6px}
.toc a{display:block;padding:6px 10px;border-radius:8px;color:var(--muted);text-decoration:none;font-size:.85rem;border-left:2px solid transparent}
.toc a:hover{color:var(--ink);background:var(--bg)}
.toc a.active{color:var(--accent-2);border-left-color:var(--accent);background:var(--bg);font-weight:600}
[data-theme="dark"] .toc a.active{color:var(--accent)}

.content{padding:34px 40px 120px;min-width:0}
@media(max-width:900px){.content{padding:24px 20px 80px}}
.content section{margin-bottom:46px;scroll-margin-top:74px}
.content h1{font-size:1.9rem;margin-bottom:6px;letter-spacing:-.01em}
.lead{color:var(--muted);font-size:1.02rem;margin-bottom:30px;max-width:780px}
.content h2{font-size:1.45rem;margin:0 0 14px;padding-bottom:8px;border-bottom:2px solid var(--line);display:flex;align-items:center;gap:10px}
.content h2 .ix{font-family:"IBM Plex Mono";font-size:.8rem;color:var(--accent);background:rgba(200,162,0,.12);padding:3px 9px;border-radius:7px}
[data-theme="dark"] .content h2 .ix{background:rgba(227,191,58,.14)}
.content h3{font-size:1.08rem;margin:22px 0 8px;color:var(--accent-2)}
[data-theme="dark"] .content h3{color:var(--accent)}
.content p{margin-bottom:12px;max-width:820px}
.content ul,.content ol{margin:0 0 14px 22px;max-width:820px}
.content li{margin-bottom:6px}
.content b,.content strong{font-weight:700}
code.inl{background:rgba(0,0,0,.06);padding:2px 6px;border-radius:5px;font-family:"IBM Plex Mono";font-size:.85em}
[data-theme="dark"] code.inl{background:rgba(255,255,255,.08)}
pre{background:var(--code-bg);color:var(--code-ink);border-radius:10px;padding:14px 16px;overflow-x:auto;font-family:"IBM Plex Mono";font-size:.82rem;line-height:1.6;margin:0 0 14px;max-width:820px}
pre .k{color:#e3bf3a}pre .f{color:#7fd3df}pre .c{color:#6b7484}pre .s{color:#9cd67f}

table{border-collapse:collapse;width:100%;max-width:820px;margin:0 0 16px;font-size:.88rem}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--faint);font-weight:700}
td code{background:rgba(0,0,0,.06);padding:1px 5px;border-radius:4px;font-family:"IBM Plex Mono";font-size:.92em}
[data-theme="dark"] td code{background:rgba(255,255,255,.08)}

.callout{border-left:3px solid var(--accent);background:var(--panel);border-radius:0 10px 10px 0;padding:13px 16px;margin:0 0 16px;max-width:820px;box-shadow:var(--shadow);font-size:.92rem}
.callout.tip{border-left-color:var(--green)}
.callout.warn{border-left-color:var(--red)}
.callout b{display:block;margin-bottom:3px}

.pillrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.pill{font-size:.78rem;padding:5px 12px;border-radius:99px;background:var(--panel);border:1px solid var(--line);color:var(--muted)}

.progress{position:fixed;top:0;left:0;height:3px;background:var(--accent);z-index:50;width:0}
::selection{background:var(--accent);color:#1b1500}
a.anchor{color:var(--accent-2);text-decoration:none}
[data-theme="dark"] a.anchor{color:var(--accent)}
.backtop{position:fixed;right:22px;bottom:22px;background:var(--accent);color:#1b1500;border:none;width:44px;height:44px;border-radius:12px;font-size:1.1rem;cursor:pointer;box-shadow:var(--shadow);display:none}
.backtop.show{display:block}

/* handbook hub cards (learn.html) */
.hub{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;max-width:840px;margin:0 0 10px}
.hcard{display:block;text-decoration:none;color:inherit;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow);transition:transform .25s,border-color .25s;position:relative}
a.hcard:hover{transform:translateY(-4px);border-color:var(--accent)}
.hcard .ic{font-size:1.5rem}
.hcard h4{font-size:1.05rem;margin:8px 0 4px;font-weight:700}
.hcard p{font-size:.86rem;color:var(--muted);margin:0;line-height:1.5}
.hcard .soon{position:absolute;top:14px;right:14px;font-family:"IBM Plex Mono";font-size:.62rem;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);border:1px solid var(--line);border-radius:99px;padding:2px 8px}
.hcard.disabled{opacity:.6;cursor:default}