:root {
  --bg: #f3f1ec;
  --panel: #ffffff;
  --ink: #1f2328;
  --muted: #6b7280;
  --line: var(--soft2);
  --accent: #2f6f4f;
  --accent-ink: #fff;
  --danger: #b42318;
  --sq-light: #f0d9b5;
  --sq-dark: #b58863;
  --sq-last: rgba(205, 210, 60, 0.55);
  --sq-sel: rgba(20, 85, 30, 0.5);
  --sq-check: radial-gradient(circle, rgba(255, 0, 0, 0.85) 0%, rgba(231, 0, 0, 0.5) 40%, rgba(169, 0, 0, 0) 75%);
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.05), 0 4px 16px rgba(0, 0, 0, 0.05);
}

:root {
  --soft: #f7f5f0;
  --soft2: #ece8df;
  --tint: #eef5f0;
  --tint2: #d7e8dd;
  --line2: #c9c3b6;
  --ink2: #444;
  --good-bg: #ecfdf3;
  --bad-bg: #fef2f2;
  --info-bg: #eff6ff;
  --warn-bg: #fffbeb;
  --warn-ink: #92400e;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #161512;
  --panel: #262421;
  --ink: #e8e4dd;
  --ink2: #c9c4bb;
  --muted: #a29d93;
  --line: #3a3733;
  --line2: #57524a;
  --soft: #2e2b27;
  --soft2: #3a3733;
  --tint: #22332a;
  --tint2: #2f4b3b;
  --accent: #3f9a6c;
  --good-bg: rgba(34, 197, 94, .14);
  --bad-bg: rgba(239, 68, 68, .14);
  --info-bg: rgba(59, 130, 246, .14);
  --warn-bg: rgba(245, 158, 11, .14);
  --warn-ink: #fcd34d;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
  color-scheme: dark;
}
:root[data-theme="dark"] .topbar { background: #0f1f17; }
:root[data-theme="dark"] .auth-card, :root[data-theme="dark"] .toast.challenge { color: var(--ink); }
:root[data-theme="dark"] .form input, :root[data-theme="dark"] .filter, :root[data-theme="dark"] .chat-form input,
:root[data-theme="dark"] .io-row input, :root[data-theme="dark"] .io-card textarea { background: var(--soft); color: var(--ink); }
:root[data-theme="dark"] { --link: #6fcf97; }
:root[data-theme="dark"] .btn.primary, :root[data-theme="dark"] .tc-btn.active, :root[data-theme="dark"] .level-btn.active { color: #fff; }

/* Самбарын өнгөний сонголтууд */
:root[data-board="green"] { --sq-light: #eeeed2; --sq-dark: #769656; }
:root[data-board="blue"] { --sq-light: #dee3e6; --sq-dark: #8ca2ad; }
:root[data-board="gray"] { --sq-light: #e0e0e0; --sq-dark: #a0a0a0; }
:root[data-board="purple"] { --sq-light: #e8e0f0; --sq-dark: #9179b4; }


* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
[hidden] { display: none !important; }
a { color: var(--link, var(--accent)); text-decoration: none; }
h2 { font-size: 16px; margin: 0 0 12px; display: flex; align-items: center; gap: 8px; }
h3 { font-size: 15px; margin: 0 0 10px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--danger); margin: 10px 0 0; }
.hint { color: var(--muted); font-size: 12px; margin: 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  padding: 8px 14px; border-radius: 8px; font: inherit; font-weight: 500; cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn:hover { border-color: var(--line2); background: var(--soft); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: #275e43; }
.btn.danger { color: var(--danger); }
.btn.ghost { background: transparent; border-color: transparent; color: inherit; }
.btn.ghost:hover { background: rgba(255, 255, 255, .12); }
.btn.small { padding: 4px 10px; font-size: 12px; }
.chip {
  display: inline-block; padding: 1px 8px; border-radius: 999px; background: var(--soft2);
  font-size: 12px; font-weight: 600; color: var(--ink2);
}

/* ---------- Auth ---------- */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px;
  background: linear-gradient(135deg, #2f6f4f 0%, #1d3b2c 100%); }
.auth-card { width: 100%; max-width: 440px; background: var(--panel); border-radius: 14px; padding: 28px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; color: inherit; }
.brand.big { font-size: 22px; }
.logo { font-size: 1.5em; line-height: 1; }
.tabs { display: flex; gap: 4px; margin: 18px 0 14px; background: var(--soft2); padding: 4px; border-radius: 9px; }
.tab { flex: 1; border: 0; background: transparent; padding: 8px; border-radius: 7px; font: inherit; font-weight: 600; cursor: pointer; color: var(--muted); }
.tab.active { background: var(--panel); color: var(--ink); box-shadow: var(--shadow); }
.form { display: flex; flex-direction: column; gap: 12px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-weight: 500; font-size: 13px; }
.form input, .filter, .chat-form input {
  font: inherit; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--ink); width: 100%;
}
.form input:focus, .filter:focus, .chat-form input:focus { outline: 2px solid rgba(47,111,79,.35); border-color: var(--accent); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 480px) { .row2 { grid-template-columns: 1fr; } }

/* ---------- Layout ---------- */
.topbar {
  display: flex; align-items: center; gap: 20px; padding: 10px 20px;
  background: #1d3b2c; color: #fff; position: sticky; top: 0; z-index: 10; flex-wrap: wrap;
}
.topbar nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.topbar nav a { color: rgba(255,255,255,.75); padding: 6px 12px; border-radius: 7px; font-weight: 500; }
.topbar nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.topbar nav a.active { color: #fff; background: rgba(255,255,255,.15); }
.topbar .me { display: flex; align-items: center; gap: 8px; }
.topbar .chip { background: rgba(255,255,255,.15); color: #fff; }
@media (max-width: 700px) {
  .topbar { gap: 8px 12px; padding: 8px 12px; }
  .topbar nav { order: 3; flex-basis: 100%; }
  .topbar nav a { padding: 4px 8px; font-size: 13px; }
  .topbar .me { margin-left: auto; }
  #me-name { display: none; }
}
.conn-banner { background: var(--warn-bg); color: var(--warn-ink); text-align: center; padding: 6px; font-size: 13px; }
main { max-width: 1280px; margin: 0 auto; padding: 20px 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); margin-bottom: 16px; }
.view .card:last-child { margin-bottom: 0; }

.lobby { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; align-items: start; }
.lobby .col > .card + .card { margin-top: 16px; }
.lobby .col > .card { margin-bottom: 0; }
@media (max-width: 1050px) { .lobby { grid-template-columns: 1fr 1fr; } .lobby .col:last-child { grid-column: 1 / -1; } }
@media (max-width: 700px) { .lobby { grid-template-columns: 1fr; } }

.tc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.tc-btn {
  border: 1px solid var(--line); background: var(--soft); border-radius: 9px; padding: 12px 4px; cursor: pointer;
  font: inherit; display: flex; flex-direction: column; align-items: center; gap: 2px; color: var(--ink);
}
.tc-btn b { font-size: 17px; }
.tc-btn span { font-size: 11px; color: var(--muted); }
.tc-btn:hover { border-color: var(--accent); background: var(--tint); }
.tc-btn.active { border-color: var(--accent); background: var(--accent); color: #fff; }
.tc-btn.active span { color: rgba(255,255,255,.8); }
.color-pick { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }
.color-pick button {
  width: 46px; height: 46px; border-radius: 9px; border: 1px solid var(--line); background: var(--soft);
  font-size: 26px; cursor: pointer; line-height: 1; color: var(--ink);
}
.color-pick button.active { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(47,111,79,.3); }
.my-seek { margin-top: 14px; display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--tint); border-radius: 8px; }
.my-seek #my-seek-text { flex: 1; }
.spinner { display: inline-block; vertical-align: -2px; width: 14px; height: 14px; border: 2px solid var(--accent); border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.list { display: flex; flex-direction: column; gap: 2px; max-height: 360px; overflow-y: auto; }
.list .empty { color: var(--muted); font-size: 13px; padding: 8px 0; }
.item { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 8px; }
.item:hover { background: var(--soft); }
.item .grow { flex: 1; min-width: 0; }
.item .title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item .sub { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; flex: none; }
.status-dot.busy { background: #f59e0b; }

/* ---------- Chat ---------- */
.chat-card { display: flex; flex-direction: column; }
.chat-log { height: 280px; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; padding: 4px 0 8px; font-size: 13px; }
.lobby .chat-log { height: 520px; }
.chat-log .msg b { margin-right: 4px; }
.chat-log .msg time { color: var(--muted); font-size: 11px; margin-right: 4px; }
.chat-log .sys { color: var(--muted); font-style: italic; }

/* ---------- Game ---------- */
.game { display: grid; grid-template-columns: minmax(0, 640px) minmax(280px, 1fr); gap: 20px; align-items: start; }
@media (max-width: 900px) { .game { grid-template-columns: 1fr; } }
.board-wrap { width: 100%; max-width: 640px; }
.player-bar { display: flex; justify-content: space-between; align-items: center; padding: 8px 2px; }
.pinfo { display: flex; align-items: center; gap: 8px; font-weight: 600; min-width: 0; }
.pinfo .pname { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pinfo .dot { width: 10px; height: 10px; border-radius: 50%; border: 1px solid #555; flex: none; }
.pinfo .dot.w { background: var(--panel); }
.pinfo .dot.b { background: #222; }
.clock {
  font: 600 22px/1 ui-monospace, "Cascadia Mono", Consolas, monospace; padding: 8px 14px; border-radius: 8px;
  background: var(--soft2); color: var(--muted); min-width: 110px; text-align: right;
}
.clock.running { background: #1d3b2c; color: #fff; }
.clock.low { background: var(--danger); color: #fff; }
.clock:empty { display: none; }

.board {
  position: relative; aspect-ratio: 1; width: 100%;
  border-radius: 4px; overflow: hidden; box-shadow: 0 6px 24px rgba(0,0,0,.18); user-select: none; touch-action: none;
}
.board-grid { display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(8, 1fr); width: 100%; height: 100%; }
.board-arrows { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 2; }
.sq { position: relative; display: grid; place-items: center; aspect-ratio: 1; min-width: 0; min-height: 0; }
.sq.light { background: var(--sq-light); }
.sq.dark { background: var(--sq-dark); }
.sq.last::before { content: ""; position: absolute; inset: 0; background: var(--sq-last); }
.sq.sel::before { content: ""; position: absolute; inset: 0; background: var(--sq-sel); }
.sq.check { background-image: var(--sq-check); }
.sq.hint::after {
  content: ""; position: absolute; width: 30%; height: 30%; border-radius: 50%; background: rgba(20, 85, 30, .45); pointer-events: none;
}
.sq.hint.cap::after { width: 92%; height: 92%; background: transparent; border: 5px solid rgba(20, 85, 30, .45); box-sizing: border-box; }
.sq.drop { box-shadow: inset 0 0 0 4px rgba(255,255,255,.7); }
.coord { position: absolute; font-size: 11px; font-weight: 700; pointer-events: none; }
.coord.file { right: 3px; bottom: 1px; }
.coord.rank { left: 3px; top: 1px; }
.sq.light .coord { color: var(--sq-dark); }
.sq.dark .coord { color: var(--sq-light); }

.piece { position: relative; z-index: 1; width: 100%; height: 100%; display: block; cursor: default;
  background: center / 90% no-repeat; filter: drop-shadow(0 2px 1px rgba(0,0,0,.18)); }
.piece.w.t-k { background-image: url(/pieces/wK.svg); }
.piece.w.t-q { background-image: url(/pieces/wQ.svg); }
.piece.w.t-r { background-image: url(/pieces/wR.svg); }
.piece.w.t-b { background-image: url(/pieces/wB.svg); }
.piece.w.t-n { background-image: url(/pieces/wN.svg); }
.piece.w.t-p { background-image: url(/pieces/wP.svg); }
.piece.b.t-k { background-image: url(/pieces/bK.svg); }
.piece.b.t-q { background-image: url(/pieces/bQ.svg); }
.piece.b.t-r { background-image: url(/pieces/bR.svg); }
.piece.b.t-b { background-image: url(/pieces/bB.svg); }
.piece.b.t-n { background-image: url(/pieces/bN.svg); }
.piece.b.t-p { background-image: url(/pieces/bP.svg); }
.piece.movable { cursor: grab; }
.piece.dragging { opacity: .3; }
.drag-ghost { position: fixed; z-index: 100; pointer-events: none; transform: translate(-50%, -50%) scale(1.1); }

.game-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.status { font-weight: 600; padding: 10px 12px; border-radius: 8px; background: var(--soft); margin-bottom: 10px; }
.status.over { background: var(--tint); color: var(--accent); }
.draw-offer { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 10px; background: var(--warn-bg); border-radius: 8px; margin-bottom: 10px; font-size: 13px; }
.draw-offer span { flex: 1 1 100%; }
.moves {
  display: grid; grid-template-columns: 36px 1fr 1fr; max-height: 260px; overflow-y: auto; font-size: 14px;
  border: 1px solid var(--line); border-radius: 8px; min-height: 60px; align-content: start;
}
.moves .num { color: var(--muted); background: var(--soft); text-align: center; padding: 4px 0; }
.moves .mv { padding: 4px 10px; cursor: pointer; font-weight: 500; }
.moves .mv:hover { background: var(--tint); }
.moves .mv.cur { background: var(--tint2); }
.nav-btns { display: flex; gap: 6px; margin: 10px 0; }
.nav-btns .btn { flex: 1; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.actions .btn { flex: 1; }

.promo {
  position: fixed; z-index: 300; display: flex; flex-direction: column; background: var(--panel); border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0,0,0,.3); overflow: hidden;
}
.promo button { border: 0; background: var(--panel); cursor: pointer; padding: 4px; }
.promo button:hover { background: var(--tint); }
.promo .piece { width: 56px; height: 56px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th { text-align: left; color: var(--muted); font-weight: 600; padding: 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.table td { padding: 8px; border-bottom: 1px solid var(--soft2); white-space: nowrap; }
.table tr.click { cursor: pointer; }
.table tr.click:hover td { background: var(--soft); }
.filter { max-width: 320px; margin-bottom: 12px; }
.win { color: #15803d; font-weight: 600; }
.loss { color: var(--danger); font-weight: 600; }
.draw { color: var(--muted); font-weight: 600; }
.medal { font-size: 16px; }

.profile { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.avatar { width: 64px; height: 64px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-size: 26px; font-weight: 700; flex: none; }
.stats { display: flex; gap: 10px; flex-wrap: wrap; }
.stat { background: var(--soft); border-radius: 8px; padding: 8px 14px; text-align: center; min-width: 80px; }
.stat b { display: block; font-size: 20px; }
.stat span { font-size: 12px; color: var(--muted); }

/* ---------- Dialog / toast ---------- */
.dialog { background: var(--panel); color: var(--ink); border: 0; border-radius: 14px; padding: 22px; width: min(440px, calc(100vw - 32px)); box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.dialog::backdrop { background: rgba(0,0,0,.35); }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.toasts { position: fixed; right: 16px; bottom: 16px; z-index: 200; display: flex; flex-direction: column; gap: 8px; max-width: min(360px, calc(100vw - 32px)); }
.toast { background: #1f2328; color: #fff; padding: 12px 14px; border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.25); font-size: 13px; animation: pop .2s ease-out; }
.toast.challenge { background: var(--panel); color: var(--ink); border: 2px solid var(--accent); }
.toast .t-actions { display: flex; gap: 8px; margin-top: 10px; }
.toast .t-actions .btn { flex: 1; }
@keyframes pop { from { transform: translateY(8px); opacity: 0; } }

/* ======================================================================
   Суралцах, компьютер, шинжилгээ
   ====================================================================== */
.tabs.inline { margin: 0 0 12px; display: inline-flex; }
.tabs.inline .tab { padding: 6px 14px; flex: none; }
.color-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; border: 1px solid #555; vertical-align: middle; }
.color-dot.w { background: var(--panel); }
.color-dot.b { background: #222; }
.btn.big { padding: 12px 22px; font-size: 15px; }
.btn.ghost-dark { background: transparent; border-color: transparent; color: var(--muted); }
.btn.ghost-dark:hover { color: var(--ink); background: var(--soft2); }
.select { color: var(--ink); font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); width: 100%; margin: 4px 0 12px; }
.progress { height: 6px; background: var(--soft2); border-radius: 99px; overflow: hidden; margin-top: 6px; }
.progress > div { height: 100%; background: var(--accent); border-radius: 99px; transition: width .3s; }

/* Нийтлэг байрлал: самбар + хажуу хэсэг */
.study { display: grid; grid-template-columns: minmax(0, 660px) minmax(300px, 1fr); gap: 20px; align-items: start; }
@media (max-width: 950px) { .study { grid-template-columns: 1fr; } }
.study-board { width: 100%; max-width: 660px; }
.board-row { display: flex; gap: 8px; align-items: stretch; }
.board-row .board { flex: 1; min-width: 0; }
.study-title { font-weight: 700; font-size: 17px; margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.study-side .card { margin-bottom: 16px; }
.viewer-title { margin: 0 0 4px; font-size: 18px; }
.page-head { margin-bottom: 18px; }
.page-head.compact { margin-bottom: 10px; }
.page-head h1 { margin: 6px 0 4px; font-size: 24px; }
.back { font-size: 13px; font-weight: 600; }
.section-title { margin: 24px 0 12px; font-size: 17px; }

/* Үнэлгээний босоо зураас */
.evalbar { width: 22px; flex: none; background: #403d39; border-radius: 4px; position: relative; overflow: hidden; }
.evalbar-fill { position: absolute; left: 0; right: 0; bottom: 0; background: #f6f6f6; transition: height .4s ease; }
.evalbar-label { position: absolute; left: 0; right: 0; bottom: 4px; text-align: center; font-size: 9px; font-weight: 700; color: #333; z-index: 1; }
.evalbar-label.dark { bottom: auto; top: 4px; color: #eee; }

/* Самбарын тэмдэглэгээ */
.sq.mark-good::before { content: ""; position: absolute; inset: 0; background: rgba(34, 197, 94, .45); }
.sq.mark-bad::before { content: ""; position: absolute; inset: 0; background: rgba(239, 68, 68, .5); }
.sq.mark-info::before { content: ""; position: absolute; inset: 0; background: rgba(59, 130, 246, .35); }
.sq.mark-hint::before { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 5px rgba(234, 179, 8, .9); background: rgba(250, 204, 21, .3); }
.sq.star::after { content: "★"; position: absolute; font-size: min(6vw, 40px); color: #f59e0b; text-shadow: 0 2px 3px rgba(0,0,0,.25); pointer-events: none; }
.sq.star.hint::after { width: auto; height: auto; background: none; border: 0; border-radius: 0; }

/* Хөдөлгүүрийн самбар */
.engine-head { display: flex; align-items: center; gap: 10px; }
.engine-title { display: flex; flex-direction: column; line-height: 1.2; flex: 1; }
.engine-score { font: 700 20px/1 ui-monospace, Consolas, monospace; }
.engine-lines { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.engine-line { display: flex; gap: 8px; font-size: 13px; padding: 4px 6px; border-radius: 6px; cursor: pointer; line-height: 1.5; }
.engine-line:hover { background: var(--soft2); }
.line-score { font-weight: 700; font-family: ui-monospace, Consolas, monospace; min-width: 48px; }
.line-pv { color: var(--ink2); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.pv-num { color: var(--muted); }
.switch { position: relative; width: 38px; height: 22px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span { position: absolute; inset: 0; background: var(--line2); border-radius: 99px; cursor: pointer; transition: .2s; }
.switch span::before { content: ""; position: absolute; width: 16px; height: 16px; left: 3px; top: 3px; background: var(--panel); border-radius: 50%; transition: .2s; }
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::before { transform: translateX(16px); }

/* Нүүдлийн жагсаалт */
.moves.tall { max-height: 320px; }
.moves .mv.empty { color: var(--muted); cursor: default; }
.moves .nag { margin-left: 1px; font-weight: 700; }
.moves .mv.inaccuracy .nag { color: #ca8a04; }
.moves .mv.mistake .nag { color: #ea580c; }
.moves .mv.blunder .nag { color: #dc2626; }
.moves .mv.has-comment { text-decoration: underline dotted #9ca3af; text-underline-offset: 3px; }
.moves-empty { grid-column: 1 / -1; padding: 8px; }
.variation { margin: 8px 0; padding: 8px 10px; background: var(--soft); border-radius: 8px; font-size: 13px; line-height: 1.9; }
.vmv { cursor: pointer; padding: 1px 4px; border-radius: 4px; }
.vmv:hover { background: var(--soft2); }
.vmv.cur { background: var(--tint2); font-weight: 600; }

/* Тайлбар, хариу */
.comment { padding: 10px 12px; border-radius: 8px; background: var(--soft); margin: 10px 0; font-size: 13.5px; line-height: 1.55; border-left: 3px solid var(--line2); }
.comment.good { background: var(--good-bg); border-color: #22c55e; }
.comment.bad { background: var(--bad-bg); border-color: #ef4444; }
.comment.info { background: var(--info-bg); border-color: #3b82f6; }
.comment.practice { background: var(--warn-bg); border-color: #f59e0b; }
.comment.inaccuracy { border-color: #ca8a04; }
.comment.mistake { border-color: #ea580c; background: var(--warn-bg); }
.comment.blunder { border-color: #dc2626; background: var(--bad-bg); }
.comment .actions { margin-top: 8px; }
.comment h3 { margin: 0; }

/* Шинжилгээ */
.review { margin-bottom: 10px; }
.eval-graph { width: 100%; height: 80px; display: block; border-radius: 6px; cursor: pointer; margin-bottom: 8px; }
.g-bg { fill: #403d39; }
.g-area { fill: #f3f3f3; }
.g-mid { stroke: #999; stroke-width: .5; stroke-dasharray: 3 3; }
.g-cur { stroke: #3b82f6; stroke-width: 1.5; }
.g-mistake { fill: #ea580c; }
.g-blunder { fill: #dc2626; }
.review-table { width: 100%; font-size: 13px; border-collapse: collapse; }
.review-table th { font-weight: 600; color: var(--muted); text-align: center; padding: 4px; }
.review-table td { padding: 4px; text-align: center; }
.review-table td:first-child { text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 140px; }
.review-table .acc { font-weight: 700; font-size: 15px; }
.review-table .inaccuracy { color: #ca8a04; font-weight: 600; }
.review-table .mistake { color: #ea580c; font-weight: 600; }
.review-table .blunder { color: #dc2626; font-weight: 600; }
.review-progress { padding: 10px; background: var(--soft); border-radius: 8px; margin-bottom: 10px; font-size: 13px; }
.io-card summary { cursor: pointer; }
.io-card label { display: block; margin-top: 10px; }
.io-row { display: flex; gap: 6px; }
.io-row input, .io-card textarea { font: 12px ui-monospace, Consolas, monospace; padding: 8px; border: 1px solid var(--line); border-radius: 8px; width: 100%; resize: vertical; }
.io-card .actions { margin-top: 8px; }

/* Компьютер */
.setup-card { max-width: 720px; margin: 0 auto; }
.level-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
@media (max-width: 560px) { .level-grid { grid-template-columns: repeat(2, 1fr); } }
.level-btn { border: 1px solid var(--line); background: var(--soft); border-radius: 10px; padding: 12px 6px; cursor: pointer; font: inherit; display: flex; flex-direction: column; align-items: center; gap: 2px; color: var(--ink); }
.level-btn b { font-size: 22px; }
.level-btn small { color: var(--muted); font-size: 11px; }
.level-btn .lvl-stat { font-style: normal; font-size: 10px; color: var(--accent); }
.level-btn:hover { border-color: var(--accent); }
.level-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.level-btn.active small, .level-btn.active .lvl-stat { color: rgba(255,255,255,.85); }
.thinking { display: flex; align-items: center; gap: 6px; }

/* Суралцах төв */
.learn-hero { display: flex; gap: 24px; justify-content: space-between; align-items: center; flex-wrap: wrap;
  background: linear-gradient(135deg, var(--tint), var(--panel) 60%); }
.learn-hero h1 { margin: 0 0 6px; font-size: 26px; }
.hero-stats { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-stats .stat { min-width: 110px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.tile { display: flex; flex-direction: column; gap: 6px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; color: var(--ink); box-shadow: var(--shadow); transition: transform .12s, border-color .12s; }
.tile:hover { border-color: var(--accent); transform: translateY(-1px); }
.tile-top { display: flex; justify-content: space-between; gap: 8px; align-items: flex-start; }
.tile-players { font-size: 13px; }
.tags { display: flex; gap: 4px; flex-wrap: wrap; }
.done-chip { background: var(--good-bg); color: #15803d; }
.feature .f-icon { font-size: 28px; }
.features { margin-top: 4px; }
.lesson-tile { flex-direction: row; align-items: center; gap: 12px; position: relative; }
.lesson-tile.done { background: var(--tint); }
.l-icon { font-size: 26px; width: 42px; height: 42px; display: grid; place-items: center; background: var(--soft2); border-radius: 10px; flex: none; }
.lesson-tile.done .l-icon { background: var(--good-bg); }
.l-check { position: absolute; top: 8px; right: 10px; color: #15803d; font-weight: 700; }
.lesson-head { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }
.step-dots { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.step-dots span { width: 26px; height: 6px; border-radius: 99px; background: var(--soft2); cursor: pointer; }
.step-dots span.done { background: #86efac; }
.step-dots span.cur { background: var(--accent); }
.lesson-text { font-size: 14.5px; line-height: 1.6; }
.lesson-text p { margin: 0 0 10px; }
.lesson-text ol, .lesson-text ul { margin: 0 0 10px; padding-left: 20px; }
.lesson-nav { display: flex; gap: 8px; justify-content: space-between; align-items: center; margin-top: 14px; border-top: 1px solid var(--line); padding-top: 12px; }
.mini-table { border-collapse: collapse; margin: 6px 0 12px; }
.mini-table td { padding: 3px 10px 3px 0; }
.big-glyph { font-size: 24px; line-height: 1; font-family: "Segoe UI Symbol", "DejaVu Sans", sans-serif; }

/* Бодлого */
.puzzle-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 10px; }
.big-num { font-size: 30px; font-weight: 800; line-height: 1.1; }
.pz-diff { font-size: 18px; font-weight: 700; }
.pz-info { margin-top: 10px; line-height: 1.8; }
.pz-history { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 10px; }
.pz-history span { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; font-weight: 700; color: #fff; }
.pz-history .ok { background: #22c55e; }
.pz-history .no { background: #ef4444; }

/* Таах / дадлага */
.mode-tabs { margin-top: 10px; }
.guess-box { font-size: 13.5px; }
.guess-score { display: flex; gap: 16px; margin: 8px 0; padding: 8px 10px; background: var(--soft); border-radius: 8px; }
.learn-stats { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }

/* ======================================================================
   Тэмцээн, тохиргоо, профайлын график, өдрийн бодлого
   ====================================================================== */
.arena-layout { display: grid; grid-template-columns: 1fr 380px; gap: 16px; align-items: start; }
.arena-layout #ar-lists .card { margin-bottom: 16px; }
@media (max-width: 900px) { .arena-layout { grid-template-columns: 1fr; } }
.t-icon { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; background: var(--soft2); flex: none; font-size: 17px; }
.t-icon.running { background: var(--good-bg); box-shadow: 0 0 0 2px #22c55e inset; }
.t-icon.upcoming { background: var(--info-bg); }
.arena-detail { display: grid; gap: 16px; }
.arena-detail .card { margin: 0; }
.arena-title { display: flex; gap: 12px; align-items: center; }
.arena-title h1 { margin: 0; font-size: 22px; }
.arena-title > div { flex: 1; }
.arena-title .t-icon { width: 48px; height: 48px; font-size: 24px; }
.arena-countdown { font-size: 22px; margin: 14px 0; }
.status-running { background: var(--good-bg); color: #15803d; }
.status-upcoming { background: var(--info-bg); color: #1d4ed8; }
.arena-table .sheet { white-space: normal; }
.pts { display: inline-grid; place-items: center; min-width: 20px; height: 20px; margin: 1px; border-radius: 5px; font-size: 11px; font-weight: 700; background: var(--soft2); color: var(--muted); }
.pts.win { background: #22c55e; color: #fff; }
.pts.draw { background: var(--line2); color: #fff; }
.pts.fire { background: #f97316; color: #fff; }
.me-row td { background: var(--tint); }
.paused td { opacity: .6; }
.podium { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; align-items: end; margin-top: 16px; max-width: 520px; }
.pod { display: flex; flex-direction: column; align-items: center; gap: 2px; background: var(--soft); border-radius: 10px 10px 0 0; padding: 12px 6px; text-align: center; }
.pod .medal { font-size: 30px; }
.pod span:last-child { font-size: 12px; color: var(--muted); }
.pod-1 { min-height: 150px; background: linear-gradient(var(--warn-bg), var(--soft)); }
.pod-2 { min-height: 120px; }
.pod-3 { min-height: 100px; }
.tour-link { margin-bottom: 8px; }
.away-box { padding: 10px 12px; background: var(--warn-bg); color: var(--warn-ink); border-radius: 8px; margin-bottom: 10px; font-size: 13px; }
.away-box .actions { margin-top: 8px; }

.daily-card { display: flex; gap: 14px; align-items: center; color: var(--ink); margin-bottom: 16px !important; }
.daily-card:hover { border-color: var(--accent); }
.daily-card h2 { margin-bottom: 4px; }
.daily-board { width: 120px; flex: none; box-shadow: none; pointer-events: none; }
.daily-tile { border-color: #f59e0b; }

.rating-chart { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.rating-chart svg { width: 100%; height: 150px; display: block; }
.rc-line { fill: none; stroke: var(--accent); stroke-width: 2.2; vector-effect: non-scaling-stroke; }
.rc-area { fill: var(--tint); opacity: .8; }
.rc-base { stroke: var(--line2); stroke-dasharray: 4 4; vector-effect: non-scaling-stroke; }
.row-actions { display: flex; gap: 4px; }

.settings-form { gap: 14px; }
.board-themes { display: flex; gap: 8px; }
.board-themes button { width: 44px; height: 44px; border-radius: 8px; border: 2px solid transparent; padding: 3px; background: var(--soft); cursor: pointer; }
.board-themes button.active { border-color: var(--accent); }
.board-themes i { display: block; width: 100%; height: 100%; border-radius: 4px;
  background: conic-gradient(var(--b) 0 25%, var(--a) 0 50%, var(--b) 0 75%, var(--a) 0) 0 0 / 50% 50%; }
.check-row { flex-direction: row !important; align-items: center; gap: 8px !important; font-weight: 500; }
.check-row input { width: auto !important; }
.sep { border: 0; border-top: 1px solid var(--line); margin: 18px 0; }
.day-streak b { color: var(--muted); }
.day-streak.on b { color: #ea580c; }