/* Приложение учителя и ученика — стиль Liquid Glass (светлый и тёмный).
   Стиль — набор переменных: другой стиль (например, «Остров» для детей) = другой блок переменных, разметка та же.
   Тема: data-theme="light|dark" на <html> или как в системе. */
:root {
  --wall: radial-gradient(1200px 640px at 8% -5%, #bfe3ff 0%, transparent 60%), radial-gradient(900px 600px at 100% 25%, #ffd9c7 0%, transparent 55%), radial-gradient(900px 700px at 40% 115%, #c9f2e3 0%, transparent 60%), #eef4fb;
  --ink: #10202f; --muted: #5b6b7b; --line: rgba(16, 32, 47, .12);
  --glass: rgba(255, 255, 255, .55); --glass-strong: rgba(255, 255, 255, .78); --glass-border: rgba(255, 255, 255, .8);
  --glass-shadow: 0 12px 32px -14px rgba(30, 60, 100, .28), inset 0 1px 0 rgba(255, 255, 255, .95);
  --accent: #0a6cd6; --accent-ink: #fff; --accent-shadow: 0 8px 18px -8px rgba(10, 108, 214, .65);
  --field: rgba(255, 255, 255, .7); --field-border: rgba(16, 32, 47, .14);
  --good: #128a63; --good-bg: rgba(52, 179, 138, .16); --bad: #c2472a; --bad-bg: rgba(255, 120, 90, .16); --warn: #a06d07;
  --blur: blur(22px) saturate(170%);
  --r: 22px; --r-sm: 13px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Fira Sans", "Segoe UI", sans-serif;
  --display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Fira Sans", "Segoe UI", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --wall: radial-gradient(1000px 620px at 0% 0%, #1d4a7a 0%, transparent 60%), radial-gradient(900px 600px at 100% 20%, #4a2a5e 0%, transparent 55%), radial-gradient(900px 700px at 50% 120%, #0f4a45 0%, transparent 60%), #0b1220;
    --ink: #eef3fa; --muted: #a3b0c2; --line: rgba(255, 255, 255, .14);
    --glass: rgba(255, 255, 255, .08); --glass-strong: rgba(255, 255, 255, .14); --glass-border: rgba(255, 255, 255, .15);
    --glass-shadow: 0 14px 34px -16px rgba(0, 0, 0, .65), inset 0 1px 0 rgba(255, 255, 255, .12);
    --accent: #3a95ff; --accent-shadow: 0 8px 20px -8px rgba(58, 149, 255, .75);
    --field: rgba(255, 255, 255, .07); --field-border: rgba(255, 255, 255, .18);
    --good: #5fd1a6; --good-bg: rgba(95, 209, 166, .14); --bad: #ff8a6b; --bad-bg: rgba(255, 110, 80, .15); --warn: #ffc95c;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --wall: radial-gradient(1000px 620px at 0% 0%, #1d4a7a 0%, transparent 60%), radial-gradient(900px 600px at 100% 20%, #4a2a5e 0%, transparent 55%), radial-gradient(900px 700px at 50% 120%, #0f4a45 0%, transparent 60%), #0b1220;
  --ink: #eef3fa; --muted: #a3b0c2; --line: rgba(255, 255, 255, .14);
  --glass: rgba(255, 255, 255, .08); --glass-strong: rgba(255, 255, 255, .14); --glass-border: rgba(255, 255, 255, .15);
  --glass-shadow: 0 14px 34px -16px rgba(0, 0, 0, .65), inset 0 1px 0 rgba(255, 255, 255, .12);
  --accent: #3a95ff; --accent-shadow: 0 8px 20px -8px rgba(58, 149, 255, .75);
  --field: rgba(255, 255, 255, .07); --field-border: rgba(255, 255, 255, .18);
  --good: #5fd1a6; --good-bg: rgba(95, 209, 166, .14); --bad: #ff8a6b; --bad-bg: rgba(255, 110, 80, .15); --warn: #ffc95c;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0; font-family: var(--font); color: var(--ink); background: var(--wall); background-attachment: fixed;
  font-size: 15px; line-height: 1.45; -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }
h1, h2, h3 { font-family: var(--display); margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: 1.7rem; } h2 { font-size: 1.25rem; } h3 { font-size: 1.05rem; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: .82rem; }

.glass {
  background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--r);
  box-shadow: var(--glass-shadow); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
}
.pad { padding: 18px 20px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.spread { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }

.btn {
  font: 600 .92rem var(--font); padding: 10px 16px; border-radius: var(--r-sm); cursor: pointer;
  border: 1px solid var(--field-border); background: var(--glass-strong); color: var(--ink);
}
.btn:hover { filter: brightness(1.03); }
a.btn { display: inline-flex; align-items: center; justify-content: center; width: fit-content; text-decoration: none; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; box-shadow: var(--accent-shadow); }
.btn.danger { color: var(--bad); }
.btn.link { background: none; border: none; padding: 4px 2px; color: var(--accent); font-weight: 500; }
.btn:disabled { opacity: .55; cursor: default; }
.btn:focus-visible, input:focus-visible, select:focus-visible, .nav-item:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

label.field { display: flex; flex-direction: column; gap: 5px; font-size: .84rem; color: var(--muted); }
input[type=text], input[type=email], input[type=password], select {
  font: 500 1rem var(--font); color: var(--ink); background: var(--field); border: 1px solid var(--field-border);
  border-radius: var(--r-sm); padding: 11px 13px; width: 100%;
}
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; }
.check input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--accent); flex: none; }

.msg { font-size: .88rem; padding: 9px 12px; border-radius: var(--r-sm); }
.msg.err { background: var(--bad-bg); color: var(--bad); }
.msg.ok { background: var(--good-bg); color: var(--good); }

.tabs { display: flex; gap: 4px; padding: 4px; border-radius: 14px; background: var(--field); border: 1px solid var(--field-border); }
.tabs button { flex: 1; font: 600 .9rem var(--font); padding: 8px; border-radius: 10px; border: none; background: none; color: var(--muted); cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--glass-strong); color: var(--ink); box-shadow: 0 2px 8px -4px rgba(0, 0, 0, .25); }

.pill { display: inline-block; font-size: .74rem; font-weight: 600; padding: 2px 9px; border-radius: 99px; background: var(--field); border: 1px solid var(--field-border); color: var(--muted); }
.pill.good { color: var(--good); background: var(--good-bg); border-color: transparent; }
.pill.warn { color: var(--warn); }

/* ---------- Вход и выбор (index) ---------- */
.center-page { min-height: 100vh; display: grid; place-items: center; padding-block: 32px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.auth-card { width: min(420px, 100%); }
.brand { font-family: var(--display); font-weight: 700; font-size: 1.15rem; line-height: 1.15; }
.brand i { display: block; font-style: normal; font-weight: 500; color: var(--accent); }
.choices { display: grid; gap: 10px; }
.choice { display: flex; flex-direction: column; gap: 2px; padding: 14px 16px; text-decoration: none; color: var(--ink); border-radius: var(--r-sm); background: var(--glass-strong); border: 1px solid var(--glass-border); }
.choice b { font-size: 1rem; }
.choice span { font-size: .84rem; color: var(--muted); }
.choice:hover { border-color: var(--accent); }

/* ---------- Кабинет (teacher) ---------- */
.shell { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 16px; padding: 16px; min-height: 100vh; }
.side { padding: 22px 14px; display: flex; flex-direction: column; gap: 4px; position: sticky; top: 16px; align-self: start; min-height: calc(100vh - 32px); }
.side .brand { padding: 0 10px 18px; }
.nav-item { display: block; width: 100%; text-align: left; font: 500 .92rem var(--font); color: var(--ink); background: none; border: none; padding: 9px 12px; border-radius: 12px; cursor: pointer; text-decoration: none; opacity: .85; }
.nav-item[aria-current="page"] { background: var(--glass-strong); opacity: 1; font-weight: 600; }
.side .spacer { flex: 1; }
.main { display: flex; flex-direction: column; gap: 16px; min-width: 0; padding: 6px 4px; }
.crumb { font-size: .78rem; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.gcard { padding: 16px 18px; cursor: pointer; text-align: left; font: inherit; color: inherit; display: flex; flex-direction: column; gap: 6px; }
.gcard:hover { border-color: var(--accent); }
.list { display: flex; flex-direction: column; }
.li { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 11px 2px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.li:last-child { border-bottom: none; }
.li .who { display: flex; flex-direction: column; min-width: 0; }
.li .who span { font-size: .8rem; color: var(--muted); word-break: break-all; }
.code { font: 700 1.6rem ui-monospace, "SF Mono", Menlo, monospace; letter-spacing: .18em; }
.linkbox { font-size: .82rem; word-break: break-all; padding: 9px 12px; border-radius: var(--r-sm); background: var(--field); border: 1px solid var(--field-border); }
.two { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.form-inline { display: grid; grid-template-columns: 2fr 1fr auto; gap: 10px; align-items: end; }

/* ---------- Ученик (student) — телефон в первую очередь ---------- */
.phone-page { max-width: 480px; margin: 0 auto; padding-block: 18px 40px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); display: flex; flex-direction: column; gap: 14px; }
.topbar { display: flex; justify-content: space-between; align-items: center; }
.big-btn { display: block; width: 100%; padding: 26px 18px; border-radius: var(--r); border: none; cursor: pointer; text-align: center; font: 800 1.25rem var(--display); background: var(--accent); color: var(--accent-ink); box-shadow: var(--accent-shadow); }
.big-btn small { display: block; font: 500 .82rem var(--font); opacity: .85; margin-top: 4px; }
.gear-row { display: flex; justify-content: center; padding-top: 6px; }
.gear-btn { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--glass-border); background: var(--glass); color: var(--muted); font-size: 1.2rem; cursor: pointer; backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); }
.gear-btn:hover { color: var(--ink); }
.big-btn:disabled { background: var(--glass-strong); color: var(--muted); box-shadow: var(--glass-shadow); cursor: default; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; padding: 10px; }
  .side { position: static; min-height: 0; flex-direction: row; flex-wrap: wrap; padding: 12px; }
  .side .brand { width: 100%; padding-bottom: 8px; }
  .side .spacer { display: none; }
  .nav-item { width: auto; }
  .two, .form-inline { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: no-preference) { .btn, .choice, .gcard { transition: border-color .15s, filter .15s; } }

/* ---------- Навыки ученика (core/skills_view.js) и карточка ученика ---------- */
.level-weak { color: var(--bad); } .level-learning { color: var(--warn); } .level-good { color: #3f9f80; } .level-strong { color: var(--good); } .level-few { color: var(--muted); }
.skills-summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.skills-summary-card { padding: 14px; text-align: center; background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--r-sm); }
.skills-summary-title { font-weight: 700; }
.skills-summary-value { font-family: var(--display); font-size: 1.9rem; font-weight: 800; line-height: 1.1; }
.skills-summary-sub, .skills-summary-hint { font-size: .74rem; color: var(--muted); }
.skill-category { padding: 16px 18px; background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--r); margin-top: 12px; }
.skill-category-planned { opacity: .8; }
.skill-cat-head { display: flex; align-items: center; gap: 12px; }
.skill-cat-icon { font-size: 1.5rem; }
.skill-cat-titles { flex: 1; min-width: 0; }
.skill-cat-titles h3 small { font-weight: 500; color: var(--muted); margin-left: 6px; }
.skill-cat-titles p { margin: 2px 0 0; font-size: .78rem; color: var(--muted); }
.skill-cat-score { font-family: var(--display); font-size: 1.5rem; font-weight: 800; }
.skill-group { margin-top: 12px; }
.skill-group-title { font-weight: 700; font-size: .88rem; }
.skill-group-note { font-size: .76rem; color: var(--muted); }
details.skill-group > summary { cursor: pointer; font-size: .84rem; font-weight: 600; color: var(--muted); }
.skill-row { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(70px, 1fr) 80px auto; align-items: center; gap: 12px; padding: 7px 0; border-top: 1px solid var(--line); }
.skill-name { font-size: .86rem; }
.skill-hint { display: block; font-size: .72rem; color: var(--muted); }
.skill-bar { height: 8px; border-radius: 99px; background: var(--field); overflow: hidden; }
.skill-bar-fill { height: 100%; border-radius: 99px; background: currentColor; }
.skill-pct { text-align: right; font-weight: 800; }
.skill-pct small { display: block; font-weight: 500; font-size: .68rem; color: var(--muted); }
.skill-dots { display: flex; gap: 2px; }
.skill-dots .dot { width: 4px; height: 13px; border-radius: 2px; background: var(--good); }
.skill-dots .dot.bad { background: var(--bad); }
.skill-planned { opacity: .55; grid-template-columns: minmax(0, 1fr) auto; }
.skill-planned-tag { font-size: .7rem; font-weight: 700; color: var(--muted); border: 1px dashed var(--field-border); border-radius: 99px; padding: 2px 10px; }
.tiles4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.tile { padding: 12px 14px; }
.tile small { display: block; font-size: .72rem; color: var(--muted); }
.tile b { font-size: 1.25rem; font-variant-numeric: tabular-nums; }
.blocker { display: grid; grid-template-columns: 56px 1fr; gap: 3px 10px; padding: 10px 12px; border-radius: var(--r-sm); background: var(--bad-bg); }
.blocker.warnb { background: rgba(255, 200, 90, .16); }
.blocker .p { font-weight: 800; font-size: 1.05rem; color: var(--bad); font-variant-numeric: tabular-nums; }
.blocker.warnb .p { color: var(--warn); }
.blocker .t { font-weight: 600; font-size: .9rem; }
.blocker .s, .blocker .ex { grid-column: 2; font-size: .78rem; color: var(--muted); }
.blocker .ex { font-family: ui-monospace, "SF Mono", Menlo, monospace; color: var(--ink); }
.blocker .ex s { color: var(--bad); }
.catbar { display: grid; grid-template-columns: 150px 1fr 44px; align-items: center; gap: 10px; font-size: .86rem; }
.catbar .skill-bar { height: 8px; }
.catbar > span:last-child { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }
.journal { display: grid; grid-template-columns: 110px 1fr; gap: 6px 12px; font-size: .84rem; }
.journal > span:nth-child(odd) { color: var(--muted); }
@media (max-width: 860px) { .tiles4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .skill-row { grid-template-columns: minmax(0, 1fr) 70px; } .skill-dots, .skill-row .skill-bar { display: none; } .catbar { grid-template-columns: 110px 1fr 40px; } }

/* Обзор группы */
.ov-wrap { overflow-x: auto; }
.ov { border-collapse: collapse; font-size: .84rem; min-width: 100%; }
.ov th, .ov td { padding: 6px 8px; border-bottom: 1px solid var(--line); text-align: center; white-space: nowrap; }
.ov th:first-child, .ov td:first-child { text-align: left; position: sticky; left: 0; }
.ov th { font-weight: 600; color: var(--muted); }
.ov-skill { white-space: normal !important; max-width: 140px; font-size: .74rem; }
.ov-cat { font-size: .8rem; color: var(--ink); }
.ov-cat.on { text-decoration: underline; }
.cell { display: inline-block; min-width: 48px; padding: 3px 6px; border-radius: 7px; font-weight: 700; font-variant-numeric: tabular-nums; }
.cell.level-weak { background: var(--bad-bg); }
.cell.level-learning { background: rgba(255, 200, 90, .18); }
.cell.level-good { background: rgba(63, 159, 128, .16); }
.cell.level-strong { background: var(--good-bg); }
.cell.level-few { background: var(--field); }
.cell.empty { color: var(--muted); font-weight: 400; }

/* Граф навыков */
.legend { gap: 6px 10px; }
.lg { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }
.lg-strong, .g-strong { background: #2f7d5f; color: #fff; }
.lg-good, .g-good { background: #6aa58c; color: #fff; }
.lg-learning, .g-learning { background: #d8a843; color: #2a1c00; }
.lg-weak, .g-weak { background: #c0603c; color: #fff; }
.lg-few, .g-few { background: var(--glass-strong); color: var(--ink); }
.lg-none { border: 1.5px dashed var(--field-border); }
.graph-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 16px; align-items: start; }
.graph-cols { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 4px; }
.graph-col { display: flex; flex-direction: column; gap: 8px; min-width: 150px; max-width: 170px; }
.gnode { text-align: left; font: 600 .8rem var(--font); padding: 9px 10px; border-radius: 12px; border: 1px solid transparent; cursor: pointer; display: flex; flex-direction: column; gap: 3px; }
.gnode b { font-size: .78rem; opacity: .9; }
.gnode.g-none { background: transparent; color: var(--muted); border: 1.5px dashed var(--field-border); }
.gnode.on { outline: 3px solid var(--ink); outline-offset: 1px; }
.gw-list { max-height: 420px; overflow-y: auto; }
.stars { color: #d8a843; font-size: .8rem; letter-spacing: -1px; }
@media (max-width: 1000px) { .graph-layout { grid-template-columns: 1fr; } }

/* Редактор слов (teacher/words.js): выбор слова и окно редактора */
.wp { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 16px; align-items: start; }
.wp-side { position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow-y: auto; }
.wp-tlist { gap: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 600 .8rem var(--font); padding: 6px 11px; border-radius: 99px; border: 1px solid var(--field-border); background: var(--field); color: var(--muted); cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--accent); border-color: transparent; color: var(--accent-ink); }
.wp-table-wrap { overflow-x: auto; }
.wp-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.wp-table th { text-align: left; font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; padding: 6px 8px; border-bottom: 1px solid var(--line); }
.wp-table td { padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.wp-table tbody tr { cursor: pointer; }
.wp-table tbody tr:hover { background: var(--glass); }
.wp-table tbody tr.on { background: var(--glass-strong); box-shadow: inset 3px 0 0 var(--accent); }
.wp-table tbody tr.gone td { opacity: .55; }
.wp-table tbody tr.gone td:last-child { opacity: 1; }
.gr { font-weight: 600; }
.pill.bad { color: var(--bad); background: var(--bad-bg); border-color: transparent; }
.we-layer { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 16px; }
.we-back { position: absolute; inset: 0; background: rgba(10, 20, 35, .35); }
.we { position: relative; width: min(860px, 100%); max-height: calc(100vh - 32px); overflow-y: auto; display: flex; flex-direction: column; gap: 14px; background: var(--glass-strong); }
.we-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 14px; }
.we-grid .span2 { grid-column: span 2; }
.we-3, .we-4, .we-5, .we-6 { display: grid; gap: 6px; }
.we-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .we-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.we-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); } .we-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.we input[type=text], .we textarea, .we select { padding: 8px 10px; font-size: .92rem; }
textarea { font: 500 .95rem var(--font); color: var(--ink); background: var(--field); border: 1px solid var(--field-border); border-radius: var(--r-sm); padding: 9px 12px; width: 100%; resize: vertical; }
input.bad, textarea.bad { border-color: var(--bad); background: var(--bad-bg); }
.we h3 .check { font-size: 1rem; font-weight: 700; color: var(--ink); }
.we-codes { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 6px 12px; }
.we-prev { padding: 10px 12px; border-radius: var(--r-sm); background: var(--field); border: 1px solid var(--field-border); }
.we-conj { border-collapse: collapse; font-size: .86rem; margin-top: 4px; }
.we-conj th, .we-conj td { padding: 3px 14px 3px 0; text-align: left; }
.we-conj th { font-size: .74rem; color: var(--muted); font-weight: 600; }
.we-actions { position: sticky; bottom: -18px; padding: 10px 0; background: var(--glass-strong); display: flex; flex-direction: column; gap: 8px; }
.we-actions ul { margin: 0; padding-left: 18px; }
.we-pre { white-space: pre-wrap; font: .76rem ui-monospace, "SF Mono", Menlo, monospace; max-height: 260px; overflow: auto; background: var(--field); padding: 10px; border-radius: var(--r-sm); }
.spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--field-border); border-top-color: var(--accent); display: inline-block; }
@media (prefers-reduced-motion: no-preference) { .spinner { animation: spin .9s linear infinite; } }
@keyframes spin { to { transform: rotate(360deg); } }
@media (max-width: 1000px) { .wp { grid-template-columns: 1fr; } .wp-side { position: static; max-height: none; order: -1; } .wp-tr { display: none; } }
@media (max-width: 640px) { .we-grid { grid-template-columns: 1fr; } .we-grid .span2 { grid-column: auto; } .we-5, .we-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.wp-sort { font: inherit; text-transform: inherit; letter-spacing: inherit; color: inherit; background: none; border: none; padding: 0; cursor: pointer; font-weight: 600; }
.wp-sort:hover { color: var(--accent); }

.who-bar { max-width: 1200px; margin: 0 auto; padding: 8px 16px 0; }
.role-foot { display: flex; gap: 14px; justify-content: center; padding: 18px 16px 24px; font-size: .78rem; }
.role-foot a { color: var(--muted); text-decoration: none; }
.role-foot a:hover { color: var(--accent); text-decoration: underline; }

/* Логотипы приложений: ученик и учитель (как у тренажёра) */
body[data-page="student"] { --brand-logo: url(student-logo.png); }
body[data-page="teacher"] { --brand-logo: url(teacher-logo.png); }
body[data-page="student"] .brand, body[data-page="teacher"] .brand { background: var(--brand-logo) no-repeat left center / 44px 44px; padding-left: 54px; min-height: 44px; display: flex; flex-direction: column; justify-content: center; }
body[data-page="student"] .side .brand, body[data-page="teacher"] .side .brand { background-position: 10px 0; background-size: 44px 44px; padding-left: 64px; padding-top: 0; min-height: 56px; }

/* Проведение урока: левое меню свёрнуто, открывается кнопкой ☰ */
.gt-menu-toggle { display: none; position: fixed; left: 10px; top: 10px; z-index: 60; padding: 6px 11px; font-size: 1.1rem; }
body.gt-focus .gt-menu-toggle, body.gt-collapsed .gt-menu-toggle { display: inline-flex; }
body.gt-focus .shell, body.gt-collapsed .shell { grid-template-columns: minmax(0, 1fr); }
body.gt-focus .side, body.gt-collapsed .side { display: none; }
body.gt-focus.gt-menu-open .side, body.gt-collapsed.gt-menu-open .side { display: flex; position: fixed; left: 10px; top: 52px; z-index: 55; width: 230px; min-height: 0; max-height: calc(100vh - 64px); overflow: auto; box-shadow: 0 10px 40px rgba(0, 0, 0, .45); }
body.gt-focus .main, body.gt-collapsed .main { padding-top: 34px; }

/* ===== Тест уровня (core/placement_run.js) ===== */
.pl-result { display: flex; flex-direction: column; gap: 10px; }
.pl-level-label { color: var(--muted, #64748b); font-size: 0.9rem; }
.pl-level { font-size: 3rem; font-weight: 800; line-height: 1; }
.pl-level-name { font-weight: 600; }
.pl-stages { display: flex; flex-direction: column; gap: 6px; margin: 8px 0; }
.pl-stage { display: grid; grid-template-columns: 2.2rem 1fr auto auto; gap: 10px; align-items: center; }
.pl-stage em { font-style: normal; font-size: 0.85rem; opacity: 0.7; }
.pl-bar { display: block; height: 8px; border-radius: 99px; background: rgba(128, 128, 128, 0.25); overflow: hidden; }
.pl-bar i { display: block; height: 100%; background: #f59e0b; }
.pl-stage.pass .pl-bar i { background: #16a34a; }
.pl-h { margin: 12px 0 4px; }
.pl-note { opacity: 0.7; font-size: 0.9rem; margin: 4px 0; }
.pl-mistake { display: flex; flex-direction: column; gap: 2px; padding: 8px 0; border-top: 1px solid rgba(128, 128, 128, 0.25); }
.pl-q, .pl-you { opacity: 0.7; font-size: 0.85rem; }

/* номер версии внизу страницы */
.app-ver { position: fixed; right: 10px; bottom: 6px; font-size: 11px; line-height: 1; color: var(--muted); opacity: .7; pointer-events: none; z-index: 1; }
.app-ver:empty { display: none; }

/* значок и название ведут на главную */
body[data-page="teacher"] .brand, body[data-page="student"] .brand { cursor: pointer; }
/* свернуть левую панель */
.nav-collapse { position: absolute; right: 8px; top: 10px; border: 0; background: transparent; color: var(--muted); font-size: 1.1rem; cursor: pointer; padding: 2px 8px; border-radius: 8px; }
.nav-collapse:hover { background: var(--glass-strong); color: var(--ink); }
@media (max-width: 900px) { .nav-collapse { display: none; } }
/* плашка «Capybara Language Trainer» у ученика: высота — по значку, значок слева, надписи справа (класс не .trainer-card: он занят карточкой проигрывателя) */
.tr-link { display: flex; align-items: center; gap: 12px; padding: 4px 14px 4px 6px; text-decoration: none; color: var(--ink); border-radius: var(--r-sm); background: var(--glass-strong); border: 1px solid var(--glass-border); }
.tr-link:hover { border-color: var(--accent); }
.tr-link img { width: 52px; height: 52px; border-radius: 50%; flex: none; display: block; }
.tr-link .tc-text { display: flex; flex-direction: column; gap: 1px; min-width: 0; text-align: left; }
.tr-link b { font-family: var(--display); font-size: 1.2rem; line-height: 1.15; }
.tr-link small { font-size: .74rem; line-height: 1.25; color: var(--muted); }

/* v3.8.3: тема и инициалы аккаунта */
.user-chip { display: flex; align-items: center; gap: 8px; padding: 0 10px 10px; }
.topbar .user-chip { padding: 0; }
.theme-btn { width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line); background: var(--field); cursor: pointer; font-size: 1rem; line-height: 1; display: grid; place-items: center; padding: 0; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 700; font-size: .8rem; letter-spacing: .02em; }
.gt-collapsed .user-chip { flex-direction: column; padding: 0 0 8px; align-items: center; }

/* v3.10.1: «Выйти» и значки «Я ученик» / «Тренажёр» — в одну строку внизу меню */
.side-foot { display: flex; align-items: center; gap: 6px; }
.side-foot #logout { flex: 1; text-align: left; }
.foot-ic { width: 34px; height: 34px; flex: none; border-radius: 10px; display: grid; place-items: center; text-decoration: none; font-size: 1.15rem; border: 1px solid var(--line); background: var(--field); }
.foot-ic img { display: block; border-radius: 6px; }
.gt-collapsed .side-foot { flex-direction: column; }