/* ===== Токены ===== */
:root {
  --ink: #0d1321;          /* основной текст */
  --ink-soft: #3a4357;
  --pencil: #6b7489;       /* второстепенный текст */
  --paper: #f6f7fb;        /* мягкий фон внутренних блоков */
  --sheet: #ffffff;        /* страницы, карточки */
  --line: #e6e9f0;         /* линии и рамки */
  --line-strong: #cfd5e1;
  --accent: #2f5bff;       /* синий — главные действия */
  --accent-deep: #1f45e0;
  --marker: #e8edff;       /* мягкий синий фон для выделений */
  --marker-deep: #d3dcff;
  --sun: #ffb547;          /* второй акцент (точка в логотипе, PDF) */
  --redpen: #e5484d;       /* ошибки, «выйти» */
  --green: #147a4a;
  --radius-s: 12px;
  --radius-m: 18px;
  --radius-l: 24px;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Manrope", system-ui, sans-serif;
  --shadow-float: 0 12px 32px rgba(13, 19, 33, .12);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--ink); }
img { max-width: 100%; }
[hidden] { display: none !important; }

:focus-visible { outline: 3px solid var(--ink); outline-offset: 2px; border-radius: 6px; }

/* ===== Кнопки ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px;
  border: 1.5px solid var(--ink); border-radius: var(--radius-s);
  background: var(--sheet); color: var(--ink);
  font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: background .15s, transform .05s;
}
.btn:hover { background: #eef1f7; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--marker); border-color: var(--ink); }
.btn-primary:hover { background: var(--marker-deep); }
.btn-quiet { border-color: transparent; background: transparent; }
.btn-quiet:hover { background: #e9edf5; }
.btn-danger { color: var(--redpen); border-color: var(--redpen); }
.btn-small { min-height: 34px; padding: 0 12px; font-size: 14px; }
.btn svg { width: 20px; height: 20px; flex: none; }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px; border-radius: var(--radius-s);
  border: 0; background: transparent; cursor: pointer; color: var(--ink);
}
.icon-btn:hover { background: #e9edf5; }
.icon-btn svg { width: 20px; height: 20px; }

/* ===== Поля ===== */
.field { display: grid; gap: 6px; }
.field label { font-weight: 600; font-size: 14px; }
.input {
  min-height: 46px; padding: 0 14px; width: 100%;
  border: 1.5px solid var(--line-strong); border-radius: var(--radius-s);
  background: var(--sheet);
}
.input:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(255, 228, 92, .9); }
.hint { color: var(--pencil); font-size: 14px; margin: 0; }
.error-text { color: var(--redpen); font-size: 14px; margin: 0; min-height: 1.2em; }

/* Жёлтая «маркерная» подсветка текста */
.marked {
  background: linear-gradient(transparent 55%, var(--marker) 55%, var(--marker) 92%, transparent 92%);
  padding: 0 .08em;
}

/* ===== Тосты ===== */
.toasts { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); display: grid; gap: 8px; z-index: 1000; pointer-events: none; }
.toast {
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: var(--radius-s);
  box-shadow: var(--shadow-float); font-size: 15px; max-width: min(92vw, 520px);
  animation: toast-in .2s ease-out;
}
.toast.error { background: var(--redpen); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* ===== Диалог ===== */
dialog.dlg {
  border: 1.5px solid var(--ink); border-radius: var(--radius-m); padding: 0;
  width: min(440px, calc(100vw - 32px)); box-shadow: var(--shadow-float); color: var(--ink);
}
dialog.dlg::backdrop { background: rgba(27, 42, 74, .35); }
.dlg form { padding: 22px; display: grid; gap: 16px; }
.dlg h2 { margin: 0; font-size: 20px; }
.dlg .actions { display: flex; justify-content: flex-end; gap: 10px; }

/* ===== Страница входа (главная) ===== */
.landing {
  min-height: 100%;
  display: grid; grid-template-columns: 1.1fr 1fr;
}
.landing-intro {
  padding: clamp(28px, 6vw, 72px);
  display: flex; flex-direction: column; justify-content: space-between; gap: 40px;
  background: var(--ink); color: #fff;
  position: relative; overflow: hidden;
}
.landing-intro .brand { font-family: var(--font-display); font-weight: 600; font-size: 18px; letter-spacing: .01em; }
.landing-intro h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(34px, 5.2vw, 64px); line-height: 1.18; margin: 0; max-width: 11ch;
}
.landing-intro h1 .marked {
  color: var(--ink); background: var(--marker); padding: 0 .14em; margin: 0 -.06em;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
  border-radius: .08em .22em .12em .26em;
}
.landing-intro p { color: #c9d2e6; max-width: 38ch; margin: 18px 0 0; font-size: 18px; }
.ruled {
  position: absolute; inset: 0; pointer-events: none; opacity: .09;
  background-image: repeating-linear-gradient(transparent 0 38px, #fff 38px 39px);
}
.ruled::before { content: ""; position: absolute; top: 0; bottom: 0; left: 56px; width: 1px; background: #ff8a8a; opacity: 1; }
.landing-intro > * { position: relative; }
.landing-forms { padding: clamp(28px, 6vw, 72px); display: flex; flex-direction: column; justify-content: center; gap: 44px; max-width: 520px; }
.landing-forms section { display: grid; gap: 14px; }
.landing-forms h2 { margin: 0; font-size: 22px; }
.row { display: flex; gap: 10px; }
.row > .input { flex: 1; }
@media (max-width: 820px) {
  .landing { grid-template-columns: 1fr; }
  .landing-intro { min-height: 44vh; }
}

/* ===== Кабинет учителя ===== */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px clamp(16px, 3vw, 32px); background: var(--sheet); border-bottom: 1px solid var(--line);
}
.topbar .brand { font-family: var(--font-display); font-weight: 600; font-size: 17px; }
.topbar .spacer { flex: 1; }

.dash { max-width: 1120px; margin: 0 auto; padding: 28px clamp(16px, 3vw, 32px) 64px; display: grid; gap: 36px; }
.dash h1 { font-family: var(--font-display); font-size: clamp(24px, 3vw, 32px); margin: 0; font-weight: 700; }
.dash h2 { font-size: 20px; margin: 0; }
.dash-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px; }

.setup {
  border: 1.5px dashed var(--redpen); border-radius: var(--radius-m); padding: 18px 20px; background: #fff6f6;
}
.setup h2 { color: var(--redpen); margin-bottom: 8px; }
.setup ul { margin: 0; padding-left: 20px; }

.classes { display: grid; gap: 12px; }
.new-class { display: flex; flex-wrap: wrap; gap: 10px; }
.new-class .input { flex: 1 1 260px; }
.class-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.class-card {
  background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m);
  padding: 16px; display: grid; gap: 12px;
}
.class-card .title { font-weight: 700; font-size: 18px; overflow-wrap: anywhere; }
.class-card .code { color: var(--pencil); font-size: 14px; }
.class-card .actions { display: flex; flex-wrap: wrap; gap: 8px; }
.empty { color: var(--pencil); padding: 24px; border: 1.5px dashed var(--line-strong); border-radius: var(--radius-m); text-align: center; }

/* ===== Библиотека ===== */
.lib { display: grid; gap: 12px; }
.lib-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; flex: 1; min-width: 0; font-weight: 600; }
.crumbs button { border: 0; background: none; padding: 4px 6px; border-radius: 6px; cursor: pointer; color: var(--pencil); font-weight: 600; }
.crumbs button:hover { background: #e9edf5; color: var(--ink); }
.crumbs button[aria-current="page"] { color: var(--ink); }
.crumbs .sep { color: var(--line-strong); }
.lib-drop {
  background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); min-height: 120px; position: relative;
}
.lib-drop.dragging { outline: 3px dashed var(--ink); outline-offset: -8px; background: #fffbe0; }
.lib-list { list-style: none; margin: 0; padding: 6px; }
.lib-item {
  display: grid; grid-template-columns: 36px 1fr auto; align-items: center; gap: 10px;
  padding: 8px 8px; border-radius: var(--radius-s);
}
.lib-item:hover { background: #f2f5fa; }
.lib-item .ico { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 8px; background: #eef1f7; font-size: 13px; font-weight: 700; color: var(--ink-soft); }
.lib-item .ico.folder { background: var(--marker); color: var(--ink); }
.lib-item .ico svg { width: 20px; height: 20px; }
.lib-item .name { font-weight: 600; overflow-wrap: anywhere; line-height: 1.3; }
.lib-item .name button { all: unset; cursor: pointer; }
.lib-item .name button:hover { text-decoration: underline; }
.lib-item .meta { color: var(--pencil); font-size: 13px; font-weight: 400; }
.lib-item .acts { display: flex; gap: 2px; flex-wrap: wrap; justify-content: flex-end; }
.lib-empty { padding: 28px 16px; text-align: center; color: var(--pencil); }
.progress { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.progress > div { height: 100%; background: var(--ink); width: 0; transition: width .2s; }
.uploads { display: grid; gap: 6px; font-size: 14px; }

/* ===== Класс (урок) ===== */
.lesson-page { height: 100dvh; overflow: hidden; }
.lesson-page .toasts { bottom: auto; top: 112px; }

.prejoin { min-height: 100dvh; display: grid; place-items: center; padding: 24px 16px; }
.prejoin-card {
  width: min(880px, 100%); display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px;
  background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-l); padding: 24px;
}
.preview {
  position: relative; aspect-ratio: 4 / 3; background: var(--ink); border-radius: var(--radius-m); overflow: hidden;
  display: grid; place-items: center; color: #c9d2e6;
}
.preview video { width: 100%; height: 100%; object-fit: cover; transform: scaleX(-1); }
.preview .preview-controls { position: absolute; bottom: 12px; left: 0; right: 0; display: flex; justify-content: center; gap: 10px; }
.prejoin-form { display: grid; align-content: center; gap: 18px; }
.prejoin-form h1 { font-family: var(--font-display); font-size: 26px; margin: 0; line-height: 1.15; }
@media (max-width: 760px) { .prejoin-card { grid-template-columns: 1fr; } }

.round-btn {
  width: 48px; height: 48px; border-radius: 50%; border: 0; cursor: pointer;
  display: grid; place-items: center; background: rgba(255, 255, 255, .92); color: var(--ink);
}
.round-btn svg { width: 22px; height: 22px; }
.round-btn.off { background: var(--redpen); color: #fff; }

.room {
  height: 100dvh; display: grid;
  grid-template-columns: 1fr 320px;
  grid-template-rows: auto 1fr auto;
  grid-template-areas: "top top" "main side" "controls side";
}
.room-top {
  grid-area: top; display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; background: var(--sheet); border-bottom: 1px solid var(--line);
  min-width: 0;
}
.room-top .title { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.room-top .spacer { flex: 1; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex: none; }
.status-dot.warn { background: #e2a200; }

.main { grid-area: main; position: relative; min-height: 0; min-width: 0; display: flex; flex-direction: column; background: var(--sheet); }
.main-tabs { display: flex; gap: 4px; padding: 6px 8px 0; border-bottom: 1px solid var(--line); background: var(--paper); }
.main-tabs button {
  border: 1px solid transparent; border-bottom: 0; background: transparent; padding: 7px 14px; cursor: pointer;
  border-radius: 8px 8px 0 0; font-weight: 600; color: var(--pencil);
}
.main-tabs button[aria-selected="true"] { background: var(--sheet); border-color: var(--line); color: var(--ink); margin-bottom: -1px; }
.stage { position: relative; flex: 1; min-height: 0; }
.board { position: absolute; inset: 0; }
.board-loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--pencil); text-align: center; padding: 24px; }
.screen-view { position: absolute; inset: 0; background: #0e1628; display: grid; place-items: center; }
.screen-view video { width: 100%; height: 100%; object-fit: contain; }

.player {
  position: absolute; bottom: 64px; left: 50%; transform: translateX(-50%); z-index: 20;
  display: flex; align-items: center; gap: 10px; padding: 8px 10px 8px 14px;
  background: var(--sheet); border: 1.5px solid var(--ink); border-radius: 999px; box-shadow: var(--shadow-float);
  max-width: calc(100% - 20px);
}
.player .pname { font-weight: 600; font-size: 14px; max-width: 220px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player audio { height: 34px; max-width: 300px; }

.lock-note {
  position: absolute; top: 12px; left: 50%; transform: translateX(-50%); white-space: nowrap; z-index: 15; background: var(--sheet); border: 1px solid var(--line);
  border-radius: var(--radius-s); padding: 6px 10px; font-size: 13px; color: var(--pencil);
}

.side { grid-area: side; display: flex; flex-direction: column; min-height: 0; border-left: 1px solid var(--line); background: var(--paper); }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 8px; overflow-y: auto; max-height: 50%; flex: none; }
.tiles.one { grid-template-columns: 1fr; }
.tile {
  position: relative; aspect-ratio: 4 / 3; background: var(--ink); border-radius: var(--radius-s); overflow: hidden;
  outline: 3px solid transparent; transition: outline-color .15s;
}
.tile.speaking { outline-color: var(--marker); }
.tile video { width: 100%; height: 100%; object-fit: cover; display: block; }
.tile.local video { transform: scaleX(-1); }
.tile .avatar {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 26px; color: var(--ink);
}
.tile .avatar span { width: 56px; height: 56px; border-radius: 50%; background: var(--marker); display: grid; place-items: center; }
.tile .label {
  position: absolute; left: 6px; bottom: 6px; right: 6px; display: flex; align-items: center; gap: 4px;
  font-size: 12px; font-weight: 600; color: #fff; text-shadow: 0 1px 2px rgba(0, 0, 0, .6);
}
.tile .label .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .label svg { width: 14px; height: 14px; flex: none; }
.tile .badge { background: var(--marker); color: var(--ink); text-shadow: none; border-radius: 4px; padding: 0 5px; font-size: 11px; }

.side-tabs { display: flex; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--sheet); flex: none; }
.side-tabs button {
  flex: 1; border: 0; background: none; padding: 10px; font-weight: 600; cursor: pointer; color: var(--pencil);
  border-bottom: 3px solid transparent; position: relative;
}
.side-tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--marker-deep); }
.side-tabs .dot { position: absolute; top: 8px; margin-left: 4px; width: 8px; height: 8px; border-radius: 50%; background: var(--redpen); }
.side-panel { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.side-tabs .drawer-close { display: none; flex: 0 0 48px; color: var(--ink); }
.side-tabs .drawer-close svg { width: 20px; height: 20px; }
.side-panel .lib { padding: 8px; }
.lib-scroll { flex: 1; min-height: 0; overflow-y: auto; }
.tests-mini { margin: 8px 8px 0; background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); }
.tests-mini summary { padding: 10px 12px; font-weight: 700; cursor: pointer; }
.tests-mini ul { list-style: none; margin: 0; padding: 0 6px 6px; }
.tests-mini li { display: flex; align-items: center; gap: 6px; padding: 4px 6px; }
.tests-mini li.hint { display: block; }
.tests-mini .tm-title { flex: 1; font-weight: 600; font-size: 14px; overflow-wrap: anywhere; }
.side-panel .crumbs { flex-basis: 100%; order: 2; font-size: 14px; }
.side-panel .lib-bar .btn { flex: 1; }
.side-panel .lib-drop { min-height: 80px; }
.side-panel .lib-item { grid-template-columns: 32px 1fr; }
.side-panel .lib-item .ico { width: 32px; height: 32px; }
.side-panel .lib-item .acts { grid-column: 1 / -1; justify-content: flex-start; padding-left: 42px; }

.chat { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.chat-log { flex: 1; overflow-y: auto; padding: 10px 12px; display: flex; flex-direction: column; gap: 10px; }
.msg { display: grid; gap: 2px; }
.msg .who { font-size: 12px; font-weight: 700; color: var(--pencil); }
.msg .who.teacher { color: var(--ink); }
.msg .txt { background: var(--sheet); border: 1px solid var(--line); border-radius: 4px 12px 12px 12px; padding: 7px 10px; overflow-wrap: anywhere; white-space: pre-wrap; justify-self: start; max-width: 100%; }
.msg.mine .txt { background: #fff7c2; border-color: #efdf85; justify-self: end; border-radius: 12px 4px 12px 12px; }
.msg.mine .who { text-align: right; }
.msg .file-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.chat-empty { color: var(--pencil); font-size: 14px; text-align: center; margin: auto 0; }
.chat-form { display: flex; gap: 6px; padding: 8px; border-top: 1px solid var(--line); background: var(--sheet); }
.chat-form textarea { flex: 1; resize: none; min-height: 42px; max-height: 120px; padding: 9px 12px; border: 1.5px solid var(--line-strong); border-radius: var(--radius-s); }
.chat-form textarea:focus { outline: none; border-color: var(--ink); }

.controls {
  grid-area: controls; display: flex; justify-content: center; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px; background: var(--sheet); border-top: 1px solid var(--line);
}
.ctrl {
  display: inline-flex; flex-direction: column; align-items: center; gap: 2px; min-width: 64px;
  border: 0; background: none; cursor: pointer; padding: 4px 6px; border-radius: var(--radius-s); color: var(--ink);
  font-size: 12px; font-weight: 600;
}
.ctrl .ci { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: #eef1f7; }
.ctrl:hover .ci { background: #e1e6f0; }
.ctrl.off .ci { background: var(--redpen); color: #fff; }
.ctrl.on .ci { background: var(--marker); }
.ctrl.leave .ci { background: var(--redpen); color: #fff; }
.ctrl svg { width: 22px; height: 22px; }
.ctrl.mobile-only { display: none; }

@media (max-width: 900px) {
  .room {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas: "top" "tiles" "main" "controls";
  }
  .side { display: contents; }
  .tiles {
    grid-area: tiles; display: flex; overflow-x: auto; max-height: none; padding: 6px; background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  .tile { width: 118px; flex: none; }
  .side-tabs, .side-panel { display: none; }
  .drawer-open .side-tabs, .drawer-open .side-panel { display: flex; }
  .drawer-open .side-tabs {
    position: fixed; left: 0; right: 0; top: 30dvh; z-index: 50; box-shadow: var(--shadow-float); border-radius: 16px 16px 0 0;
  }
  .drawer-open .side-panel {
    position: fixed; left: 0; right: 0; bottom: 76px; top: calc(30dvh + 44px); z-index: 50; background: var(--paper);
  }
  .drawer-open .side-tabs .drawer-close { display: grid; place-items: center; }
  .drawer-open .controls { position: relative; z-index: 51; }
  .ctrl { min-width: 54px; }
  .ctrl .lbl-long { display: none; }
  .ctrl.mobile-only { display: inline-flex; }
  .room-top .hide-mobile { display: none; }
}

/* ===== Редактор тестов ===== */
.input.area { min-height: 0; padding: 10px 14px; resize: vertical; line-height: 1.45; }
.input.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 13px; }
.input-small { min-height: 38px; padding: 0 10px; }
select.input { cursor: pointer; }
.editor { max-width: 860px; gap: 28px; }
.gen {
  background: var(--sheet); border: 1.5px solid var(--ink); border-radius: var(--radius-l);
  padding: 20px; display: grid; gap: 16px; box-shadow: 6px 6px 0 var(--marker);
}
.gen-grid { display: grid; grid-template-columns: 1fr 1fr 1.4fr; gap: 14px; align-items: end; }
.types { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; min-height: 46px; }
.types legend { font-weight: 600; font-size: 14px; padding: 0; margin-bottom: 6px; float: left; width: 100%; }
.types label { display: inline-flex; gap: 6px; align-items: center; font-size: 15px; font-weight: 500; }
.gen-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.chat-route { border-top: 1px solid var(--line); padding-top: 14px; display: grid; gap: 10px; justify-items: start; }
.chat-route ol { margin: 0; padding-left: 20px; color: var(--ink-soft); }
.chat-route .field { width: 100%; }
.test-meta { display: grid; gap: 14px; }
.check { display: flex; gap: 8px; align-items: center; font-weight: 500; }
.check input { width: 18px; height: 18px; }
.q-list { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 12px; }
.q-card { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 14px; display: grid; gap: 10px; }
.q-head { display: flex; align-items: center; gap: 8px; }
.q-head .spacer { flex: 1; }
.q-head select { width: auto; }
.q-num { width: 30px; height: 30px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; flex: none; }
.opts { display: grid; gap: 6px; }
.opt { display: flex; align-items: center; gap: 8px; padding: 4px 6px; border-radius: var(--radius-s); }
.opt.correct { background: #fff7c2; }
.opt input[type=radio] { width: 20px; height: 20px; accent-color: var(--ink); flex: none; }
.opt .input { flex: 1; }
.opt-foot { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
@media (max-width: 700px) { .gen-grid { grid-template-columns: 1fr 1fr; } .types { grid-column: 1 / -1; } }

/* ===== Тест для ученика ===== */
.quiz { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
.quiz-card, .quiz-form { display: grid; gap: 18px; }
.quiz-head { background: var(--ink); color: #fff; border-radius: var(--radius-l); padding: 24px; display: grid; gap: 10px; }
.quiz-head .hint { color: #c9d2e6; }
.quiz-head h1 { font-family: var(--font-display); font-size: clamp(22px, 4vw, 30px); margin: 0; line-height: 1.2; }
.quiz-head p { margin: 0; color: #dfe5f2; }
.quiz-head label { color: #fff; }
.quiz-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; counter-reset: q; }
.quiz-q { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 16px 16px 16px 52px; position: relative; display: grid; gap: 10px; counter-increment: q; }
.quiz-q::before { content: counter(q); position: absolute; left: 14px; top: 14px; width: 28px; height: 28px; border-radius: 50%; background: var(--marker); display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.quiz-prompt { font-weight: 600; font-size: 17px; white-space: pre-wrap; overflow-wrap: anywhere; }
.quiz-opts { display: grid; gap: 6px; }
.quiz-opt { display: flex; gap: 10px; align-items: center; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: var(--radius-s); cursor: pointer; }
.quiz-opt:has(input:checked) { border-color: var(--ink); background: #fff7c2; }
.quiz-opt input { width: 18px; height: 18px; accent-color: var(--ink); flex: none; }
.quiz-submit { justify-self: start; min-height: 52px; padding: 0 28px; font-size: 17px; }
.result-head .score { display: flex; align-items: baseline; gap: 14px; }
.score-num { font-family: var(--font-display); font-size: 40px; font-weight: 700; color: var(--marker); }
.score-pct { font-size: 20px; color: #dfe5f2; }
.quiz-q.is-ok { border-left: 5px solid var(--green); }
.quiz-q.is-wrong { border-left: 5px solid var(--redpen); }
.ans-line { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; }
.ans-line.correct { color: var(--green); font-weight: 600; }
.mark { font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: 999px; background: #eef1f7; }
.is-ok .mark, .mark.good { background: #dcf5ea; color: var(--green); }
.is-wrong .mark, .mark.bad { background: #fde4e4; color: var(--redpen); }

/* ===== Результаты теста ===== */
.summary { display: grid; grid-template-columns: 200px 1fr; gap: 12px; }
.sum-card { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 16px; }
.sum-card .big { font-family: var(--font-display); font-size: 40px; font-weight: 700; }
.sum-title { font-weight: 700; margin: 0 0 6px; }
.hard-list { margin: 0; padding-left: 0; list-style: none; display: grid; gap: 6px; }
.hard-pct { display: inline-block; min-width: 92px; font-weight: 700; color: var(--redpen); }
.res-list { display: grid; gap: 8px; margin-top: 10px; }
.res { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); }
.res summary { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding: 12px 16px; cursor: pointer; list-style: none; }
.res summary::-webkit-details-marker { display: none; }
.res summary::before { content: "▸"; color: var(--pencil); }
.res[open] summary::before { content: "▾"; }
.res-name { font-weight: 700; flex: 1; min-width: 120px; }
.res-when { color: var(--pencil); font-size: 14px; }
.res-score { font-weight: 700; padding: 2px 10px; border-radius: 999px; }
.res-score.good { background: #dcf5ea; color: var(--green); }
.res-score.mid { background: #fff3c4; color: #8a6d00; }
.res-score.low { background: #fde4e4; color: var(--redpen); }
.res-body { padding: 0 16px 14px; display: grid; gap: 10px; justify-items: start; }
.wrong-list { margin: 0; padding-left: 0; list-style: none; display: grid; gap: 10px; width: 100%; }
.wrong-list li { border-left: 3px solid var(--redpen); padding: 4px 0 4px 12px; display: grid; gap: 4px; }
@media (max-width: 640px) { .summary { grid-template-columns: 1fr; } }

/* ===== Комната ученика ===== */
.room-page { max-width: 820px; margin: 0 auto; padding: 24px 16px 64px; display: grid; gap: 22px; }
.room-hero { background: var(--ink); color: #fff; border-radius: var(--radius-l); padding: 28px 24px; display: grid; gap: 14px; justify-items: start; position: relative; overflow: hidden; }
.room-hero h1 { font-family: var(--font-display); font-size: clamp(26px, 5vw, 40px); line-height: 1.1; margin: 0; }
.room-hero .hint, .room-hero p { color: #c9d2e6; margin: 0; }
.btn-big { min-height: 54px; padding: 0 26px; font-size: 18px; }
.room-section { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 18px 20px; display: grid; gap: 10px; }
.room-section h2 { margin: 0; font-size: 20px; }
.room-section h3 { margin: 6px 0 0; font-size: 15px; color: var(--pencil); }
.room-files, .room-tests { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.room-file { display: grid; grid-template-columns: 36px 1fr auto; gap: 10px; align-items: center; padding: 6px; border-radius: var(--radius-s); }
.room-file:hover { background: #f2f5fa; }
.room-file .ico { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 8px; background: #eef1f7; font-size: 12px; font-weight: 700; color: var(--ink-soft); }
.room-file .ico svg { width: 20px; height: 20px; }
.rf-name { font-weight: 600; overflow-wrap: anywhere; text-decoration: none; }
.rf-name:hover { text-decoration: underline; }
.room-tests li { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 10px 6px; border-bottom: 1px solid var(--line); }
.room-tests li:last-child { border-bottom: 0; }
.rt-main { flex: 1; min-width: 160px; }
.rt-title { font-weight: 700; }
.rooms-picker { max-height: none; }

/* ===== Оплаты ===== */
.dlg-wide { width: min(560px, calc(100vw - 32px)); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid { align-items: start; }
.form-grid > .field { grid-column: 1 / -1; }
.inline-row { align-items: center; }
.inline-row .input { flex: 1; min-width: 0; }
.form-grid > .field.half { grid-column: auto; }
.form-grid .field .btn-quiet { justify-self: start; }
@media (max-width: 520px) { .form-grid > .field.half { grid-column: 1 / -1; } }
.picker { grid-column: 1 / -1; border: 1px solid var(--line); border-radius: var(--radius-s); padding: 10px 12px; margin: 0; display: grid; gap: 6px; max-height: 240px; overflow-y: auto; }
.picker legend { font-weight: 600; font-size: 14px; padding: 0 4px; }
.row.wrap { flex-wrap: wrap; }
.pay { gap: 28px; }
.pay-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.pay-stats .big { font-size: clamp(24px, 3vw, 34px); }
.sum-card.warn { border-color: var(--redpen); background: #fff6f6; }
.sum-card.warn .big { color: var(--redpen); }
@media (max-width: 820px) { .pay-stats { grid-template-columns: 1fr 1fr; } }
.attention { background: var(--sheet); border: 1.5px solid var(--ink); border-radius: var(--radius-l); padding: 18px 20px; box-shadow: 6px 6px 0 var(--marker); display: grid; gap: 10px; }
.att-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.att-list li { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.att-list .spacer { flex: 1; }
.linklike { border: 0; background: none; padding: 0; font-weight: 700; cursor: pointer; color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.pay-list { display: grid; gap: 8px; margin-top: 10px; }
.pay-row .res-name { display: flex; flex-direction: column; line-height: 1.25; }
.sub-class { font-weight: 400; font-size: 13px; }
.res-score.none { background: #eef1f7; color: var(--pencil); }
.pay-body { justify-items: stretch; }
.pay-body h3 { margin: 6px 0 0; font-size: 15px; }
.hist { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.hist li { display: grid; grid-template-columns: 70px 1fr auto; align-items: center; gap: 10px; padding: 4px 6px; border-radius: 6px; }
.hist li:hover { background: #f2f5fa; }
.h-date { color: var(--pencil); font-size: 14px; }
.income { border-collapse: collapse; width: 100%; max-width: 520px; margin-top: 8px; background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; }
.income th, .income td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--line); }
.income th { font-size: 13px; color: var(--pencil); font-weight: 600; }
.income td:nth-child(n+2), .income th:nth-child(n+2) { text-align: right; font-variant-numeric: tabular-nums; }
.income tr:last-child td { border-bottom: 0; }
.dash-alert { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; background: #fff7c2; border: 1.5px solid var(--ink); border-radius: var(--radius-m); padding: 12px 16px; }
.dash-alert .spacer { flex: 1; }

/* ===== Тема «Чистый» (поверх базовых правил) ===== */
body { background: var(--sheet); }
:focus-visible { outline-color: var(--accent); }
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--marker); }
.input { border-width: 1px; }

.btn { border-width: 1px; border-color: var(--line-strong); font-weight: 700; }
.btn:hover { background: var(--paper); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(47, 91, 255, .22); }
.btn-primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.btn-quiet { border-color: transparent; }
.btn-danger { border-color: #f3c2c4; }
dialog.dlg { border: 0; border-radius: var(--radius-l); }
dialog.dlg::backdrop { background: rgba(13, 19, 33, .4); }
.toast { border-radius: var(--radius-s); }

/* логотип: синяя и янтарная точки */
.brand { display: inline-flex; align-items: center; font-weight: 800 !important; letter-spacing: 0 !important; }
.brand::before { content: ""; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); box-shadow: 16px 0 0 var(--sun); margin-right: 26px; flex: none; }

/* вкладки кабинета */
.topbar { flex-wrap: wrap; row-gap: 10px; }
.tabsnav { display: flex; gap: 4px; padding: 4px; margin-left: clamp(8px, 3vw, 32px); background: var(--paper); border-radius: 14px; overflow-x: auto; scrollbar-width: none; }
.tabsnav::-webkit-scrollbar { display: none; }
.tabsnav a { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px; border-radius: 10px; font-weight: 700; font-size: 15px; color: var(--pencil); text-decoration: none; white-space: nowrap; }
.tabsnav a svg { width: 18px; height: 18px; flex: none; }
.tabsnav a:hover { color: var(--ink); }
.tabsnav a[aria-current="page"] { background: var(--sheet); color: var(--accent); box-shadow: 0 2px 8px rgba(13, 19, 33, .08); }
@media (max-width: 760px) {
  .tabsnav { order: 3; flex-basis: 100%; margin-left: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .tabsnav a { flex-direction: column; justify-content: center; gap: 2px; min-height: 52px; padding: 4px 2px; font-size: 12px; }
  .tabsnav a svg { width: 20px; height: 20px; }
}

/* расписание */
.schedule { display: grid; gap: 16px; }
.week-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.week-label { font-weight: 800; font-size: 18px; min-width: 170px; text-align: center; }
.week { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; }
.wday { background: var(--paper); border-radius: var(--radius-m); padding: 10px; display: flex; flex-direction: column; gap: 8px; min-height: 160px; }
.wday header { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; padding: 2px 4px 4px; }
.wday .wd { font-weight: 700; color: var(--pencil); font-size: 14px; }
.wday .dn { font-weight: 800; font-size: 20px; }
.wday.is-today { background: var(--marker); }
.wday.is-today .wd, .wday.is-today .dn { color: var(--accent); }
.wday.is-past .lchip:not(.skipped) { opacity: .65; }
.today-pill { font-size: 11px; font-weight: 700; color: #fff; background: var(--accent); border-radius: 99px; padding: 1px 7px; }
.wempty { margin: 0; color: var(--pencil); font-size: 13px; padding: 0 4px; }
.lchip { all: unset; box-sizing: border-box; cursor: pointer; display: grid; gap: 2px; padding: 10px; border-radius: 12px; background: var(--sheet); border: 1px solid var(--line); border-left: 4px solid var(--accent); }
.lchip:hover { box-shadow: 0 4px 14px rgba(13, 19, 33, .08); }
.lchip:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.lchip.once { border-left-color: var(--sun); }
.lchip .lt { font-weight: 800; font-size: 14px; font-variant-numeric: tabular-nums; }
.lchip .ln { font-weight: 600; font-size: 14px; line-height: 1.25; overflow-wrap: break-word; hyphens: auto; }
.lchip .lk { font-size: 12px; color: var(--pencil); }
.lchip.skipped { border-left-color: var(--line-strong); background: transparent; }
.lchip.skipped .lt, .lchip.skipped .ln { text-decoration: line-through; color: var(--pencil); }
.lchip.clash { border-color: #f5c2c4; border-left-color: var(--redpen); }
.lchip.clash .lk { color: var(--redpen); font-weight: 700; }
.lesson-acts { display: grid; gap: 8px; }
.lesson-acts .btn { justify-content: flex-start; }
.days-picker { display: flex; flex-wrap: wrap; gap: 6px; }
.day-tg { position: relative; }
.day-tg input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.day-tg span { display: grid; place-items: center; width: 46px; height: 40px; border-radius: 10px; border: 1px solid var(--line-strong); font-weight: 700; font-size: 14px; }
.day-tg input:checked + span { background: var(--accent); border-color: var(--accent); color: #fff; }
.day-tg input:focus-visible + span { outline: 3px solid var(--marker-deep); }
.today { border: 1px solid var(--line); border-radius: var(--radius-l); padding: 18px 20px; display: grid; gap: 10px; }
.today-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.today-head h2 { margin: 0; font-size: 19px; font-weight: 800; }
.today-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.today-list li { display: flex; align-items: center; gap: 14px; padding: 10px 12px; border-radius: 14px; background: var(--paper); flex-wrap: wrap; }
.today-list .lt { font-weight: 800; font-variant-numeric: tabular-nums; min-width: 104px; }
.today-list .ln { flex: 1; font-weight: 600; }
.today-list li.done { opacity: .6; }
.today-list li.skipped .lt, .today-list li.skipped .ln { text-decoration: line-through; color: var(--pencil); }
@media (max-width: 900px) {
  .week { grid-template-columns: 1fr; }
  .wday { min-height: 0; }
  .wday:has(.wempty) { flex-direction: row; align-items: baseline; }
}
@media (max-width: 760px) {
  .tabsnav { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .tabsnav a { font-size: 11px; }
}

/* карточки со словами */
.words-page { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; display: grid; gap: 22px; }
.words-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 16px; }
.words-head .hello { margin: 0 0 4px; color: var(--pencil); font-weight: 600; }
.words-head h1 { margin: 0; font-size: clamp(32px, 5vw, 44px); font-weight: 800; letter-spacing: -.02em; line-height: 1.05; }
.words-head .hint { margin: 6px 0 0; }
.seg { display: inline-flex; background: var(--paper); border-radius: 14px; padding: 4px; gap: 2px; }
.seg button { all: unset; cursor: pointer; padding: 9px 14px; border-radius: 10px; font-weight: 700; font-size: 14px; color: var(--pencil); }
.seg button[aria-selected="true"] { background: var(--sheet); color: var(--accent); box-shadow: 0 2px 8px rgba(13, 19, 33, .08); }
.seg button:focus-visible { outline: 3px solid var(--accent); }
.words-body { display: grid; gap: 18px; }
.cards-mode, .write-mode, .list-mode { display: grid; gap: 18px; }
.words-filter { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.words-filter select { width: auto; flex: 1 1 220px; max-width: 360px; }
.words-empty, .words-done { text-align: center; padding: 40px 16px; background: var(--paper); border-radius: var(--radius-l); display: grid; gap: 10px; justify-items: center; }
.words-empty .big, .words-done .big { font-size: 24px; font-weight: 800; margin: 0; }
.words-empty p, .words-done p { margin: 0; }
.words-done .row, .write-card .row { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.fc-progress { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: center; font-weight: 700; color: var(--pencil); font-variant-numeric: tabular-nums; }
.fc-stage { position: relative; perspective: 1400px; }
.fc { all: unset; display: block; width: 100%; height: clamp(240px, 42vh, 360px); cursor: pointer; touch-action: pan-y; transition: transform .15s; -webkit-tap-highlight-color: transparent; }
.fc:focus-visible .fc-face { outline: 3px solid var(--accent); outline-offset: 3px; }
.fc-inner { position: relative; display: block; width: 100%; height: 100%; transition: transform .45s cubic-bezier(.2, .7, .2, 1); transform-style: preserve-3d; }
.fc.flipped .fc-inner { transform: rotateY(180deg); }
.fc-face { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 28px; border-radius: var(--radius-l); background: var(--sheet); border: 1px solid var(--line); box-shadow: 0 10px 30px rgba(13, 19, 33, .07); backface-visibility: hidden; -webkit-backface-visibility: hidden; text-align: center; }
.fc-back { transform: rotateY(180deg); background: var(--marker); border-color: transparent; }
.fc-word { font-size: clamp(26px, 5vw, 40px); font-weight: 800; line-height: 1.15; overflow-wrap: anywhere; }
.fc-tip { position: absolute; bottom: 16px; font-size: 13px; color: var(--pencil); }
.fc-ex { font-size: 17px; color: var(--ink-soft); font-style: italic; max-width: 32em; }
.fc-stage .say { position: absolute; top: 12px; right: 12px; z-index: 2; }
.say svg { width: 22px; height: 22px; }
.fc-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.fc-actions .btn { justify-content: center; }
.fc-again { background: #fff4e5; border-color: #ffd9a6; color: #8a4b00; }
.fc-know { background: #e6f6ee; border-color: #b9e5cd; color: var(--green); }
.fc-keys { text-align: center; margin: 0; }
.write-card { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-l); padding: 28px; display: grid; gap: 14px; box-shadow: 0 10px 30px rgba(13, 19, 33, .07); }
.write-q { margin: 0; font-size: clamp(24px, 4.5vw, 34px); font-weight: 800; text-align: center; }
.write-in { font-size: 20px; text-align: center; }
.write-fb { margin: 0; text-align: center; font-weight: 700; display: flex; justify-content: center; align-items: center; gap: 8px; }
.write-fb p { margin: 0; }
.write-fb.ok { color: var(--green); }
.write-fb.bad { color: var(--redpen); }
.write-fb.bad b { color: var(--ink); }
.words-add { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; background: var(--paper); padding: 16px; border-radius: var(--radius-m); }
.words-add input:nth-child(3) { grid-column: 1 / -1; }
.words-add .btn { grid-column: 1 / -1; justify-content: center; }
.words-bulk { background: var(--paper); padding: 12px 16px; border-radius: var(--radius-m); display: grid; gap: 10px; }
.words-bulk summary { cursor: pointer; font-weight: 700; }
.words-bulk > * + * { margin-top: 10px; }
.words-bulk .hint { margin: 0; }
.words-group { display: grid; gap: 8px; }
.words-group h2 { margin: 6px 0 0; font-size: 17px; font-weight: 800; display: flex; justify-content: space-between; align-items: baseline; }
.words-group h2 .count { font-size: 14px; color: var(--pencil); font-weight: 600; }
.words-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.words-list li { display: flex; align-items: center; gap: 10px; padding: 8px 10px; background: var(--sheet); border: 1px solid var(--line); border-radius: 14px; }
.words-list .wl-main { flex: 1; min-width: 0; }
.words-list .wl-term { font-weight: 800; }
.words-list .wl-mean { color: var(--ink-soft); }
.words-list .hint { font-size: 13px; font-style: italic; }
.words-list .wl-ok { color: var(--green); font-weight: 800; }
.words-list li.known { background: #f3fbf6; }
@media (max-width: 560px) {
  .words-add { grid-template-columns: 1fr; }
  .seg { width: 100%; }
  .seg button { flex: 1; text-align: center; padding: 9px 6px; }
}
/* слова на уроке */
.words-panel { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.wp-form { display: grid; gap: 6px; padding: 10px; border-bottom: 1px solid var(--line); }
.wp-form .row { display: flex; gap: 6px; }
.wp-form .row .input { flex: 1; min-width: 0; }
.wp-list { flex: 1; overflow: auto; list-style: none; margin: 0; padding: 8px 10px; display: grid; gap: 6px; align-content: start; }
.wp-list li { display: flex; gap: 6px; align-items: center; padding: 8px 10px; border-radius: 12px; background: var(--paper); font-size: 14px; }
.wp-list li.fresh { animation: wp-in .6s ease; }
@keyframes wp-in { from { background: var(--marker-deep); } }
.wp-list .wl-main { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.wp-list .wl-term { font-weight: 800; }
.wp-list .icon-btn { width: 30px; height: 30px; }
.wp-foot { padding: 8px 10px; border-top: 1px solid var(--line); display: flex; gap: 6px; }
.wp-foot .btn { flex: 1; min-width: 0; justify-content: center; white-space: nowrap; padding-left: 8px; padding-right: 8px; }
.room-words { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.room-words .rw-num { font-size: 34px; font-weight: 800; line-height: 1; color: var(--accent); }
.room-words .rw-text { flex: 1; min-width: 160px; }

/* деление книги */
.split-dlg { width: min(720px, calc(100vw - 24px)); max-height: calc(100dvh - 24px); }
.split-body { display: grid; gap: 12px; padding: 20px 22px; }
.split-body > .hint { margin: 0; }
.split-row:first-child .split-pages .icon-btn { visibility: hidden; }
.split-body h2 { margin: 0; }
.split-rows { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; max-height: max(170px, calc(100dvh - 560px)); overflow: auto; overscroll-behavior: contain; }
.split-row { display: grid; grid-template-columns: 76px 1fr auto; gap: 12px; align-items: start; padding: 10px; border-radius: 14px; background: var(--paper); }
.split-thumb-box { width: 76px; aspect-ratio: 3 / 4; border-radius: 8px; background: var(--sheet); border: 1px solid var(--line); overflow: hidden; display: grid; place-items: center; }
.split-thumb { width: 100%; height: 100%; object-fit: contain; }
.split-fields { display: grid; gap: 8px; min-width: 0; }
.split-pages { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 14px; }
.split-pages .split-start { width: 76px; text-align: center; padding-left: 6px; padding-right: 6px; }
.split-pages .icon-btn { font-size: 20px; font-weight: 700; }
.split-num { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.split-num input { width: 20px; height: 20px; flex: none; margin-top: 1px; }
.split-progress { display: grid; gap: 8px; }
.split-toc { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; display: grid; gap: 10px; }
.split-toc[open] { background: var(--marker); border-color: transparent; }
.split-toc summary { cursor: pointer; font-weight: 700; }
.split-toc > * + * { margin-top: 10px; }
.split-toc .hint { margin: 0; }
.split-toc-row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.split-toc-row .field { flex: 1 1 160px; }
.split-shift { display: flex; gap: 14px; align-items: flex-start; }
.split-thumb-box.big { width: 120px; flex: none; }
.split-shift-side { display: grid; gap: 10px; }
.split-step { margin: 0; font-weight: 600; }
@media (max-width: 520px) {
  .split-row { grid-template-columns: 56px 1fr auto; }
  .split-thumb-box { width: 56px; }
}

/* главная */
.landing-intro { background: var(--paper); color: var(--ink); }
.ruled { display: none; }
.landing-intro h1 { font-weight: 800; letter-spacing: -.025em; line-height: 1.05; }
.landing-intro h1 .marked { background: none; color: var(--accent); padding: 0; margin: 0; }
.landing-intro p { color: var(--pencil); }

.topbar { padding: 14px clamp(16px, 3vw, 32px); border-bottom-color: var(--line); }
.dash h1 { font-weight: 800; letter-spacing: -.02em; }
.class-card, .lib-drop, .panel-like { border-radius: var(--radius-l); }
.class-card { padding: 20px; }
.class-card .title { font-weight: 800; }
.lib-item .ico { border-radius: 12px; background: var(--paper); }
.lib-item .ico.folder { background: var(--marker); color: var(--accent); }
.lib-drop.dragging { outline-color: var(--accent); background: var(--marker); }
.progress > div { background: var(--accent); }
.empty { border-width: 1px; border-radius: var(--radius-l); background: var(--paper); border-color: var(--line); }
.dash-alert { background: #fff6e8; border: 1px solid #ffd9a0; border-radius: var(--radius-m); }
.setup { border-radius: var(--radius-l); }

/* урок */
.tile { border-radius: var(--radius-s); }
.tile.speaking { outline-color: var(--accent); }
.tile .avatar span { background: var(--marker); color: var(--accent); }
.tile .badge { background: var(--accent); color: #fff; }
.side-tabs button[aria-selected="true"] { border-bottom-color: var(--accent); }
.ctrl .ci { background: var(--paper); }
.ctrl.on .ci { background: var(--accent); color: #fff; }
.msg.mine .txt { background: var(--marker); border-color: var(--marker-deep); }
.player { border: 1px solid var(--line); }
.main-tabs button[aria-selected="true"] { color: var(--accent); }

/* тесты: редактор, прохождение, результаты */
.gen { border: 1px solid var(--line); box-shadow: none; background: var(--paper); }
.q-card, .sum-card, .res, .quiz-q { border-radius: var(--radius-m); }
.q-num { background: var(--accent); }
.opt.correct { background: var(--marker); }
.opt input[type=radio], .quiz-opt input, .check input { accent-color: var(--accent); }
.quiz-head { background: var(--sheet); color: var(--ink); border: 1px solid var(--line); }
.quiz-head .hint, .quiz-head p { color: var(--pencil); }
.quiz-head label { color: var(--ink); }
.quiz-head h1 { font-weight: 800; letter-spacing: -.02em; }
.quiz-q::before { background: var(--marker); color: var(--accent); }
.quiz-opt { border-width: 1px; border-radius: var(--radius-s); }
.quiz-opt:has(input:checked) { border-color: var(--accent); background: var(--marker); }
.score-num { color: var(--accent); }
.score-pct { color: var(--pencil); }

.quiz-q.is-ok { border-left: 1px solid #bfe8d2; border-color: #bfe8d2; background: #f6fdf9; }
.quiz-q.is-wrong { border-left: 1px solid #f5c2c4; border-color: #f5c2c4; background: #fff8f8; }
.wrong-list li { border-left: 0; padding: 12px 14px; border-radius: var(--radius-s); background: #fff8f8; }

/* оплаты */
.attention { border: 1px solid var(--line); box-shadow: var(--shadow-float); }
.sum-card .big { font-weight: 800; letter-spacing: -.02em; }

/* комната ученика */
.room-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px clamp(16px, 3vw, 32px); border-bottom: 1px solid var(--line); }
.room-who { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--ink-soft); }
.room-av { width: 36px; height: 36px; border-radius: 50%; background: var(--marker); color: var(--accent); display: grid; place-items: center; font-weight: 800; }
.room-page { max-width: 1000px; padding: 44px clamp(16px, 3vw, 32px) 64px; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); align-items: start; gap: 28px; }
.room-hero { grid-column: 1 / -1; background: none; color: var(--ink); padding: 0 0 8px; border-radius: 0; display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px; overflow: visible; }
.room-hero .hint, .room-hero p { color: var(--pencil); }
.room-hero .hello { margin: 0 0 6px; font-size: 16px; color: var(--pencil); }
.room-hero h1 { font-family: var(--font); font-weight: 800; font-size: clamp(36px, 5vw, 52px); letter-spacing: -.025em; line-height: 1.05; }
.room-hero .note { flex-basis: 100%; }
.btn-big { border-radius: 16px; }
.room-section { border-radius: 22px; border-color: var(--line); padding: 22px; }
.room-section h2 { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; font-size: 19px; font-weight: 800; }
.room-section h2 .count { font-size: 14px; font-weight: 600; color: var(--pencil); }
.room-section.wide { grid-column: 1 / -1; }
.room-tests { gap: 12px; }
.room-tests li { flex-direction: column; align-items: stretch; gap: 10px; padding: 16px; border: 0; border-radius: 16px; background: var(--paper); }
.room-tests .rt-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.rt-bar { height: 8px; border-radius: 99px; background: #e2e6f0; overflow: hidden; }
.rt-bar i { display: block; height: 100%; border-radius: 99px; background: var(--accent); }
.rt-score { background: #e6f7ee; color: var(--green); border-radius: 99px; padding: 4px 10px; font-weight: 700; font-size: 13px; white-space: nowrap; }
.file-tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.room-file.tile-f { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; padding: 16px; border-radius: 16px; background: var(--paper); min-height: 120px; text-decoration: none; color: inherit; }
.room-file.tile-f:hover { background: var(--marker); }
.room-file.tile-f .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; font-size: 12px; background: var(--marker); color: var(--accent); }
.room-file.tile-f .ico.pdf { background: #ffe9d1; color: #a5530b; }
.room-file.tile-f .rf-name { font-weight: 700; line-height: 1.3; }
@media (max-width: 760px) {
  .room-page { grid-template-columns: 1fr; padding-top: 28px; }
  .file-tiles { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ===== Заметки, ДЗ, оплата в комнате, автоперевод (28.10) ===== */
.side-tabs { overflow-x: auto; scrollbar-width: none; }
.side-tabs::-webkit-scrollbar { display: none; }
.side-tabs button { flex: 1 1 auto; padding: 10px 4px; white-space: nowrap; font-size: 13px; }
.wp-list .wp-date { background: none; padding: 6px 2px 0; font-size: 12px; font-weight: 700; color: var(--pencil); text-transform: uppercase; letter-spacing: .04em; }
.wp-form textarea.input { resize: none; min-height: 44px; font: inherit; }
.wp-row-end { align-items: center; justify-content: space-between; }
.wp-row-end .hint { font-size: 12px; flex: 1; }
.note-text, .hw-text, .hw-answer { white-space: pre-wrap; overflow-wrap: anywhere; }
.wp-list .note-item, .wp-list .hw-item { align-items: flex-start; }
.hw-due { display: flex; align-items: center; gap: 6px; }
.hw-due .input { width: auto; padding: 6px 8px; }
.hw-stat { margin-top: 4px; font-size: 13px; font-weight: 700; color: var(--green); }
.hw-stat.warn, .hw-stat.st-submitted { color: #b06a00; }
.hw-stat.st-redo { color: var(--redpen); }

.tr-alts { display: flex; flex-wrap: wrap; gap: 4px; }
.tr-alts[hidden] { display: none; }
.tr-chip { border: 1px solid var(--line-strong); background: var(--sheet); border-radius: 999px; padding: 3px 10px; font: inherit; font-size: 13px; cursor: pointer; color: var(--ink-soft); }
.tr-chip:hover { border-color: var(--accent); color: var(--accent); }
.input.tr-wait { background-image: linear-gradient(90deg, transparent, var(--marker), transparent); background-size: 200% 100%; animation: tr-wait 1s linear infinite; }
@keyframes tr-wait { from { background-position: 100% 0; } to { background-position: -100% 0; } }
.words-add .tr-alts { grid-column: 1 / -1; }

.room-section h2 .count.warn { color: #b06a00; }
.hw-body { display: grid; gap: 12px; }
.hw-add, .hw-name, .hw-submit { display: grid; gap: 8px; }
.hw-add .row, .hw-name .row, .hw-submit .row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; justify-content: space-between; }
.hw-name .row .input { flex: 1; min-width: 160px; }
.hw-name p { margin: 0; }
.hw-card { border: 1px solid var(--line); border-radius: var(--radius-s); padding: 14px; display: grid; gap: 10px; background: var(--sheet); }
.hw-card.st-checked { border-color: #bfe3cf; background: #f5fbf8; }
.hw-card.st-redo { border-color: #f5c2c3; }
.hw-top { display: flex; gap: 8px; align-items: flex-start; }
.hw-main { flex: 1; min-width: 0; display: grid; gap: 4px; }
.hw-text { font-size: 16px; font-weight: 600; }
.hw-badge { flex: none; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: var(--paper); white-space: nowrap; }
.hw-badge.st-submitted { background: #fff3df; color: #8a5300; }
.hw-badge.st-checked { background: #e2f5ea; color: var(--green); }
.hw-badge.st-redo { background: #fde7e7; color: #b42318; }
.hw-comment { background: var(--marker); border-radius: var(--radius-s); padding: 10px 12px; white-space: pre-wrap; }
.hw-mine { display: grid; gap: 6px; padding-top: 8px; border-top: 1px dashed var(--line); justify-items: start; }
.hw-answer { background: var(--paper); border-radius: 10px; padding: 8px 10px; justify-self: stretch; }
.hw-subs { display: grid; gap: 10px; }
.hw-sub { border-left: 4px solid var(--sun); background: var(--paper); border-radius: 10px; padding: 10px 12px; display: grid; gap: 8px; }
.hw-sub.st-checked { border-left-color: var(--green); }
.hw-sub.st-redo { border-left-color: var(--redpen); }
.hw-sub-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.hw-sub .input { background: var(--sheet); }
.hw-files { display: flex; flex-wrap: wrap; gap: 8px; }
.hw-files:empty { display: none; }
.hw-file { position: relative; display: grid; place-items: center; width: 96px; height: 96px; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); background: var(--paper); text-decoration: none; color: var(--ink); }
.hw-file img { width: 100%; height: 100%; object-fit: cover; }
.hw-file-name { font-size: 12px; padding: 6px; text-align: center; overflow-wrap: anywhere; }
.hw-file-x { position: absolute; top: 4px; right: 4px; width: 24px; height: 24px; border-radius: 50%; border: 0; background: rgba(13, 19, 33, .7); color: #fff; cursor: pointer; font-size: 12px; }
.hw-pending { display: inline-block; margin-top: 6px; font-size: 13px; font-weight: 700; color: #8a5300; background: #fff3df; border-radius: 999px; padding: 3px 10px; text-decoration: none; }

.notes-room { display: grid; gap: 8px; }
.notes-day { border: 1px solid var(--line); border-radius: var(--radius-s); padding: 10px 14px; }
.notes-day summary { cursor: pointer; font-weight: 700; display: flex; gap: 8px; align-items: center; }
.notes-day summary .count { font-size: 13px; color: var(--pencil); font-weight: 600; }
.notes-day ul { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 6px; }
.notes-day li { display: flex; gap: 8px; align-items: flex-start; background: var(--paper); border-radius: 10px; padding: 8px 10px; }
.notes-day li .note-text { flex: 1; }

.pay-card { border-radius: var(--radius-s); padding: 14px 16px; background: var(--paper); display: grid; gap: 4px; border-left: 5px solid var(--line-strong); }
.pay-label { font-size: 20px; font-weight: 800; }
.pay-card.pay-ok { border-left-color: var(--green); background: #f5fbf8; }
.pay-card.pay-soon { border-left-color: var(--sun); background: #fff8ec; }
.pay-card.pay-ended, .pay-card.pay-debt { border-left-color: var(--redpen); background: #fff5f5; }

/* ===== Блокнот преподавателя ===== */
.notebook { display: grid; gap: 14px; max-width: 860px; }
.tabsnav a { position: relative; }
.nb-count { min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--sun); color: var(--ink); font-size: 12px; font-weight: 800; display: inline-grid; place-items: center; }
.nb-count[hidden] { display: none; }
@media (max-width: 760px) { .nb-count { position: absolute; top: 2px; right: 4px; min-width: 18px; height: 18px; font-size: 11px; padding: 0 4px; } }
.nb-add { display: grid; gap: 8px; background: var(--sheet); border: 1px solid var(--line); border-radius: 22px; padding: 16px; }
.nb-add textarea { resize: none; font: inherit; }
.nb-add .row { display: flex; gap: 8px; flex-wrap: wrap; }
.nb-add select { flex: 1; min-width: 180px; }
.nb-filter { display: flex; gap: 6px; flex-wrap: wrap; }
.nb-filter:empty { display: none; }
.nb-chip { border: 1px solid var(--line-strong); background: var(--sheet); border-radius: 999px; padding: 6px 12px; font: inherit; font-size: 14px; font-weight: 600; cursor: pointer; color: var(--ink-soft); }
.nb-chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.nb-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.nb-item { display: flex; gap: 10px; align-items: flex-start; background: var(--sheet); border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; }
.nb-check { display: grid; place-items: center; width: 28px; height: 28px; flex: none; cursor: pointer; }
.nb-check input { width: 22px; height: 22px; accent-color: var(--accent); cursor: pointer; }
.nb-main { flex: 1; min-width: 0; display: grid; gap: 4px; }
.nb-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 16px; }
.nb-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.nb-room { font-size: 13px; font-weight: 700; color: var(--accent); background: var(--marker); border-radius: 999px; padding: 2px 10px; text-decoration: none; }
.nb-item.done { background: var(--paper); }
.nb-item.done .nb-text { text-decoration: line-through; color: var(--pencil); }
.nb-empty { color: var(--pencil); padding: 18px; text-align: center; background: var(--paper); border-radius: 16px; }
.nb-done { display: grid; gap: 8px; }
.nb-done summary { cursor: pointer; font-weight: 700; color: var(--pencil); padding: 6px 2px; }
.nb-done[open] { gap: 8px; }
.nb-done > .btn { justify-self: start; margin-top: 8px; }
@media (min-width: 761px) and (max-width: 1300px) {
  .tabsnav a { padding: 0 10px; gap: 6px; }
  .tabsnav a svg { display: none; }
}
@media (max-width: 420px) { .tabsnav a { font-size: 10px; letter-spacing: -.01em; } }

/* окошко после урока у преподавателя */
#left .prejoin-card.with-after { max-width: 620px !important; }
.after-lesson { display: grid; gap: 10px; text-align: left; background: var(--paper); border-radius: var(--radius-m); padding: 16px; }
.after-lesson > label { font-weight: 800; }
.after-lesson textarea { font: inherit; resize: vertical; background: var(--sheet); }
.after-lesson .row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.after-lesson .row .btn { flex: 1 1 200px; }
.after-lesson .hint { margin: 0; font-size: 13px; }
.after-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.after-list:empty { display: none; }
.after-list li { background: var(--sheet); border-radius: 10px; padding: 8px 10px; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 14px; }
.after-list b { color: var(--green); }