:root {
  --paper: #F7F1E6; --card: #FFFBF4; --ink: #3A2C20; --ink-soft: #7A6654; --line: #E4D6C2;
  --amber: #C2702A; --amber-soft: #F6DEC2; --sage: #5F7A4E; --sage-soft: #E2EAD6; --bad: #B2452F;
  --f-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1F1A15; --card: #2A231C; --ink: #F1E6D6; --ink-soft: #B9A58F; --line: #4A3D30;
    --amber: #E39352; --amber-soft: #4A3420; --sage: #9DBA86; --sage-soft: #2E3A26; --bad: #E2775F;
  }
}
* { box-sizing: border-box; }
html { font-size: clamp(16px, 0.6vw + 13px, 18px); }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--f-body); line-height: 1.75; }
a { color: var(--amber); }
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 16px 64px; }
.wrap.wide { max-width: 72rem; }
header.top { border-bottom: 1px solid var(--line); background: var(--card); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 10px; padding-bottom: 10px; }
header.top .brand { font-weight: 700; text-decoration: none; color: var(--ink); }
header.top nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 0.9rem; }
h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); line-height: 1.3; margin: 32px 0 12px; }
h2 { font-size: 1.25rem; margin: 32px 0 10px; }
.soft { color: var(--ink-soft); }
.small { font-size: 0.88rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.btn { display: inline-block; border: 1px solid var(--amber); background: var(--card); color: var(--amber); border-radius: 8px;
  padding: 8px 18px; font: inherit; cursor: pointer; text-decoration: none; }
.btn.primary { background: var(--amber); color: var(--card); font-weight: 600; }
.btn.danger { border-color: var(--bad); color: var(--bad); }
form.stack { display: flex; flex-direction: column; gap: 12px; }
label.field { display: flex; flex-direction: column; gap: 4px; }
input[type=tel], input[type=text], input[type=date], input[type=search] { font: inherit; padding: 8px 10px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--paper); color: var(--ink); width: 100%; }
label.agree { display: flex; gap: 8px; align-items: flex-start; font-size: 0.9rem; }
label.agree input { margin-top: 0.4em; accent-color: var(--amber); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { border-radius: 8px; padding: 10px 14px; }
.msg.err { background: var(--amber-soft); border: 1px solid var(--bad); }
.msg.ok { background: var(--sage-soft); }
ol.lessons { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
ol.lessons li { display: grid; grid-template-columns: 3em 1fr auto; gap: 10px; align-items: center; background: var(--card);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; }
ol.lessons .no { font-variant-numeric: tabular-nums; color: var(--ink-soft); }
ol.lessons .state { font-size: 0.82rem; border-radius: 999px; padding: 2px 10px; white-space: nowrap; }
.state.free { background: var(--sage-soft); }
.state.login { background: var(--amber-soft); }
.state.soon, .state.paid { background: var(--line); }
.mod { margin-top: 20px; font-weight: 600; color: var(--ink-soft); font-size: 0.9rem; }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--ink-soft); font-weight: 600; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }
.draft { background: var(--amber-soft); border: 1px dashed var(--amber); border-radius: 8px; padding: 8px 12px; font-size: 0.9rem; }
.legal h2 { font-size: 1.1rem; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.filters .grow { flex: 1; }
.big { font-size: 1.4rem; font-variant-numeric: tabular-nums; }
header.top nav form { display: inline; }
header.top nav .btn { padding: 0 10px; font-size: 0.85rem; }
footer.foot { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 16px; font-size: 0.85rem; color: var(--ink-soft); }
@media (max-width: 600px) { ol.lessons li { grid-template-columns: 2.4em 1fr; } ol.lessons .state { grid-column: 2; justify-self: start; } }