:root { --brand: #4b1d7a; --accent: #7c3aed; --bg: #f6f5fb; --card: #fff; --text: #1f1a2e; --muted: #6b6480; --ok: #16a34a; --line: #e7e3f2; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
a { color: var(--accent); }
.top { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; background: var(--brand); color: #fff; }
.top a, .top .link { color: #fff; }
.brand { font-weight: 800; letter-spacing: .5px; text-decoration: none; font-size: 18px; }
.brand span { color: #c4b5fd; }
.top nav { display: flex; gap: 16px; align-items: center; }
.link { background: none; border: 0; font: inherit; cursor: pointer; padding: 0; }
.wrap { max-width: 980px; margin: 0 auto; padding: 20px 16px 40px; }
.foot { text-align: center; padding: 20px; font-size: 13px; }
.foot a { color: var(--muted); }
h1 { font-size: 26px; margin: 8px 0 16px; }
h2 { font-size: 19px; margin: 0 0 10px; display: inline; }
.card { background: var(--card); border-radius: 14px; padding: 18px 20px; margin: 14px 0; box-shadow: 0 1px 3px rgba(40, 20, 80, .07); }
.card > h2 { display: block; }
.card.narrow { max-width: 420px; margin: 40px auto; }
.card.warn { border-left: 4px solid #f59e0b; }
.card.doc { line-height: 1.6; }
.card.doc h2 { display: block; font-size: 17px; margin-top: 18px; }
details.card summary { cursor: pointer; list-style: none; }
details.card summary::-webkit-details-marker { display: none; }
details.card summary::before { content: "▸ "; color: var(--muted); }
details[open].card summary::before { content: "▾ "; }
.docbody { margin-top: 10px; overflow-x: auto; user-select: none; -webkit-user-select: none; }
.docbody img, .docbody video { max-width: 100%; height: auto; }
.docbody table { border-collapse: collapse; }
.docbody td, .docbody th { border: 1px solid var(--line); padding: 6px 8px; vertical-align: top; }
label { display: block; margin: 10px 0; font-size: 14px; color: var(--muted); }
label input:not([type=checkbox]) { display: block; width: 100%; margin-top: 4px; padding: 10px 12px; font-size: 16px; border: 1px solid var(--line); border-radius: 8px; }
label.check { display: flex; gap: 10px; align-items: flex-start; color: var(--text); font-size: 15px; }
label.check input { margin-top: 4px; width: 18px; height: 18px; }
.btn { display: inline-block; background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 10px 18px; font-size: 16px; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--brand); }
.btn.big { padding: 14px 22px; font-size: 18px; margin: 4px 8px 4px 0; }
.btn.small { padding: 5px 10px; font-size: 13px; }
.btn.ghost { background: #eee9fb; color: var(--brand); }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }
.crumbs { margin: 0; font-size: 14px; }
.flash { padding: 10px 14px; border-radius: 8px; margin: 10px 0; background: #ede9fe; }
.flash.error { background: #fee2e2; }
.flash.success { background: #dcfce7; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stat { background: var(--card); border-radius: 14px; padding: 14px; text-align: center; box-shadow: 0 1px 3px rgba(40, 20, 80, .07); font-size: 14px; color: var(--muted); }
.stat .n { font-size: 32px; font-weight: 800; color: var(--brand); }
.stat:first-child .n { color: var(--accent); }
table.list { width: 100%; border-collapse: collapse; margin-top: 6px; }
table.list td { padding: 8px 6px; border-top: 1px solid var(--line); vertical-align: middle; }
.lessons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.lesson { width: 44px; height: 44px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; text-decoration: none; }
.lesson.open { background: #ede9fe; color: var(--brand); }
.lesson.open:hover { background: var(--accent); color: #fff; }
.lesson.current { background: var(--accent); color: #fff; }
.lesson.closed { background: #f1f0f5; color: #b9b4c7; }
.lessons.small .lesson { width: 34px; height: 34px; font-size: 14px; }
.tag { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 99px; background: #f1f0f5; color: var(--muted); }
.tag.ok { background: #dcfce7; color: var(--ok); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 6px 12px; background: #ede9fe; border-radius: 99px; text-decoration: none; color: var(--brand); font-size: 14px; }
form.inline { display: inline-flex; gap: 6px; align-items: center; margin: 0; }
select { padding: 5px 6px; border-radius: 6px; border: 1px solid var(--line); font-size: 13px; }
@media (max-width: 600px) { .grid3 { grid-template-columns: 1fr; } table.list td { display: block; border: 0; padding: 2px 0; } table.list tr { display: block; border-top: 1px solid var(--line); padding: 8px 0; } }