/* ==========================================================================
   Дневник группы — дизайн-система
   Токены → база → раскладка → компоненты → страницы
   ========================================================================== */

:root {
  --bg: #f5f6f8;
  --bg-sunken: #eef0f3;
  --surface: #ffffff;
  --surface-2: #f9fafb;
  --border: #e3e6eb;
  --border-strong: #cfd4dc;
  --text: #11151c;
  --text-2: #4a5263;
  --text-3: #7a8294;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eef0ff;
  --accent-text: #3730a3;
  --on-accent: #ffffff;
  --success: #15803d; --success-soft: #e8f6ee;
  --warning: #b45309; --warning-soft: #fdf3e2;
  --danger: #c02633;  --danger-soft: #fdecee;
  --info: #0369a1;    --info-soft: #e6f3fa;
  --focus: 0 0 0 3px rgba(79, 70, 229, .35);
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 16px rgba(16, 24, 40, .06);
  --shadow-lg: 0 12px 40px rgba(16, 24, 40, .18);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --sidebar-w: 248px;
  --topbar-h: 60px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
  color-scheme: light;

  /* Цвета предметов */
  --c-blue: #2563eb; --c-indigo: #4f46e5; --c-violet: #7c3aed; --c-pink: #db2777; --c-red: #dc2626;
  --c-orange: #ea580c; --c-amber: #d97706; --c-green: #16a34a; --c-teal: #0d9488; --c-slate: #64748b;
}

[data-area="panel"] {
  --accent: #0f766e;
  --accent-hover: #115e59;
  --accent-soft: #e3f4f2;
  --accent-text: #115e59;
  --focus: 0 0 0 3px rgba(15, 118, 110, .35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0e13; --bg-sunken: #08090d; --surface: #13161d; --surface-2: #181c24;
    --border: #252a35; --border-strong: #343b49;
    --text: #e8ebf1; --text-2: #aab1c0; --text-3: #7c8496;
    --accent: #818cf8; --accent-hover: #a5b4fc; --accent-soft: #1d1f3a; --accent-text: #c7cdfd; --on-accent: #0c0e13;
    --success: #4ade80; --success-soft: #11291c; --warning: #fbbf24; --warning-soft: #2c2210;
    --danger: #f87171; --danger-soft: #2f1417; --info: #38bdf8; --info-soft: #0e2433;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.25); --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
    --focus: 0 0 0 3px rgba(129, 140, 248, .45);
    color-scheme: dark;
  }
  :root:not([data-theme="light"]) [data-area="panel"] {
    --accent: #2dd4bf; --accent-hover: #5eead4; --accent-soft: #0f2a28; --accent-text: #99f6e4; --focus: 0 0 0 3px rgba(45,212,191,.4);
  }
}
:root[data-theme="dark"] {
  --bg: #0c0e13; --bg-sunken: #08090d; --surface: #13161d; --surface-2: #181c24;
  --border: #252a35; --border-strong: #343b49;
  --text: #e8ebf1; --text-2: #aab1c0; --text-3: #7c8496;
  --accent: #818cf8; --accent-hover: #a5b4fc; --accent-soft: #1d1f3a; --accent-text: #c7cdfd; --on-accent: #0c0e13;
  --success: #4ade80; --success-soft: #11291c; --warning: #fbbf24; --warning-soft: #2c2210;
  --danger: #f87171; --danger-soft: #2f1417; --info: #38bdf8; --info-soft: #0e2433;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.25); --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
  --focus: 0 0 0 3px rgba(129, 140, 248, .45);
  color-scheme: dark;
}
:root[data-theme="dark"] [data-area="panel"] {
  --accent: #2dd4bf; --accent-hover: #5eead4; --accent-soft: #0f2a28; --accent-text: #99f6e4; --focus: 0 0 0 3px rgba(45,212,191,.4);
}

/* --- База ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text); font: 15px/1.55 var(--font);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.25; letter-spacing: -.012em; font-weight: 650; }
h1 { font-size: 1.6rem; } h2 { font-size: 1.2rem; } h3 { font-size: 1.02rem; } h4 { font-size: .95rem; }
p { margin: 0 0 .8em; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; text-underline-offset: 2px; }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: var(--radius-sm); }
img, video, iframe { max-width: 100%; }
code, .mono { font-family: var(--mono); font-size: .88em; }
hr { border: 0; border-top: 1px solid var(--border); margin: 1.25rem 0; }
.muted { color: var(--text-3); }
.small { font-size: .85rem; }
.nowrap { white-space: nowrap; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
/* Атрибут hidden сильнее любых display у компонентов (.badge, .btn и т. п.) */
[hidden] { display: none !important; }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--surface); padding: 8px 12px; border-radius: var(--radius-sm); }
.skip-link:focus { left: 8px; }
.icon { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-sm { width: 15px; height: 15px; }
.icon-lg { width: 22px; height: 22px; }

/* --- Раскладка ------------------------------------------------------------- */
.shell { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100vh; }
.sidebar {
  position: sticky; top: 0; height: 100vh; overflow-y: auto; display: flex; flex-direction: column;
  background: var(--surface); border-right: 1px solid var(--border); padding: 14px 12px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px 16px; color: var(--text); font-weight: 680; }
.brand:hover { text-decoration: none; color: var(--text); }
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; color: var(--on-accent);
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 55%, #22d3ee));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.15);
}
.brand small { display: block; font-weight: 500; color: var(--text-3); font-size: .75rem; line-height: 1.2; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); padding: 14px 10px 6px; font-weight: 600; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius-sm);
  color: var(--text-2); font-weight: 520;
}
.nav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent-text); }
.nav a .count { margin-left: auto; font-size: .72rem; background: var(--danger); color: #fff; padding: 1px 7px; border-radius: 99px; font-weight: 600; }
.sidebar-foot { margin-top: auto; padding-top: 12px; border-top: 1px solid var(--border); }
.area-switch {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: var(--radius-sm);
  border: 1px dashed var(--border-strong); color: var(--text-2); font-weight: 560; font-size: .9rem;
}
.area-switch:hover { text-decoration: none; border-color: var(--accent); color: var(--accent-text); }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 20; height: var(--topbar-h); display: flex; align-items: center; gap: 12px;
  padding: 0 28px; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar .search { flex: 1; max-width: 460px; position: relative; }
.topbar .search .icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--text-3); }
.topbar .search input { padding-left: 36px; background: var(--surface); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.menu-toggle { display: none; }
.panel-banner {
  display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; font-weight: 650; letter-spacing: .02em;
  color: var(--accent-text); background: var(--accent-soft); padding: 4px 10px; border-radius: 99px;
}
.content { padding: 28px; width: 100%; max-width: 1240px; margin: 0 auto; flex: 1; }
.content-narrow { max-width: 820px; }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.page-head h1 { margin: 0; }
.page-head .lead { color: var(--text-2); margin: 4px 0 0; }
.page-head .actions { display: flex; gap: 8px; flex-wrap: wrap; }
.crumbs { font-size: .85rem; color: var(--text-3); margin-bottom: 6px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.crumbs a { color: var(--text-3); }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 22px; align-items: start; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.spacer { flex: 1; }
.row-center { justify-content: center; }

/* --- Карточки ----------------------------------------------------------------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.card-body { padding: 20px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.card-head h2, .card-head h3 { margin: 0; font-size: 1rem; }
.card-foot { padding: 14px 20px; border-top: 1px solid var(--border); background: var(--surface-2); border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
.card-link { display: block; color: inherit; transition: border-color .15s, box-shadow .15s, transform .15s; }
.card-link:hover { text-decoration: none; color: inherit; border-color: var(--border-strong); box-shadow: var(--shadow); transform: translateY(-1px); }

.stat { padding: 18px 20px; }
.stat .label { color: var(--text-3); font-size: .8rem; font-weight: 560; text-transform: uppercase; letter-spacing: .05em; }
.stat .value { font-size: 1.9rem; font-weight: 700; letter-spacing: -.02em; line-height: 1.2; margin-top: 4px; font-variant-numeric: tabular-nums; }
.stat .hint { color: var(--text-2); font-size: .85rem; }

.list { list-style: none; margin: 0; padding: 0; }
.list > li { border-top: 1px solid var(--border); }
.list > li:first-child { border-top: 0; }
.list-item { display: flex; align-items: center; gap: 14px; padding: 13px 20px; color: inherit; }
a.list-item:hover { background: var(--surface-2); text-decoration: none; color: inherit; }
.list-item .grow { flex: 1; min-width: 0; }
.list-item .title { font-weight: 580; display: block; overflow: hidden; text-overflow: ellipsis; }
.list-item .meta { color: var(--text-3); font-size: .84rem; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* --- Значки и метки --------------------------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px; font-size: .75rem; font-weight: 600; line-height: 1;
  padding: 5px 9px; border-radius: 99px; white-space: nowrap; background: var(--bg-sunken); color: var(--text-2);
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.tone-success { background: var(--success-soft); color: var(--success); }
.tone-warning { background: var(--warning-soft); color: var(--warning); }
.tone-danger { background: var(--danger-soft); color: var(--danger); }
.tone-info { background: var(--info-soft); color: var(--info); }
.tone-accent { background: var(--accent-soft); color: var(--accent-text); }
.tone-muted { background: transparent; color: var(--text-3); box-shadow: inset 0 0 0 1px var(--border); }

.subject-chip { display: inline-flex; align-items: center; gap: 7px; font-size: .82rem; font-weight: 560; color: var(--text-2); }
.subject-chip::before { content: ""; width: 8px; height: 8px; border-radius: 3px; background: var(--sc, var(--c-slate)); }
.subject-icon {
  width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; font-size: 1.25rem; flex: none;
  background: color-mix(in srgb, var(--sc) 14%, var(--surface)); color: var(--sc); font-weight: 700;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--sc) 25%, transparent);
}
.c-blue { --sc: var(--c-blue); } .c-indigo { --sc: var(--c-indigo); } .c-violet { --sc: var(--c-violet); }
.c-pink { --sc: var(--c-pink); } .c-red { --sc: var(--c-red); } .c-orange { --sc: var(--c-orange); }
.c-amber { --sc: var(--c-amber); } .c-green { --sc: var(--c-green); } .c-teal { --sc: var(--c-teal); } .c-slate { --sc: var(--c-slate); }
.subject-bar { border-left: 3px solid var(--sc, var(--border)); }

.status-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; box-shadow: inset 0 0 0 2px var(--border-strong); }
.status-dot.s-done { background: var(--success); box-shadow: none; }
.status-dot.s-in_progress { background: var(--warning); box-shadow: none; }

/* --- Кнопки ---------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 38px; padding: 0 15px;
  border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  font: inherit; font-weight: 580; font-size: .92rem; cursor: pointer; white-space: nowrap; transition: background .12s, border-color .12s, color .12s;
}
.btn:hover { background: var(--surface-2); text-decoration: none; color: var(--text); border-color: var(--text-3); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--on-accent); }
.btn-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }
.btn-danger:hover { background: var(--danger-soft); color: var(--danger); border-color: var(--danger); }
.btn-danger.btn-solid { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--bg-sunken); border-color: transparent; }
.btn-sm { height: 31px; padding: 0 11px; font-size: .84rem; }
.btn-icon { width: 38px; padding: 0; }
.btn-icon.btn-sm { width: 31px; }
.btn[disabled], .btn.is-loading { opacity: .65; pointer-events: none; }
.btn.is-loading::after { content: ""; width: 13px; height: 13px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.btn-block { width: 100%; }
.btn-start { justify-content: flex-start; }
[data-mobile-search] { display: none; }
.inline-form { display: inline; }

.avatar {
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-size: .78rem; font-weight: 700;
  background: var(--accent-soft); color: var(--accent-text); flex: none;
}
.bell { position: relative; }
.bell .pip { position: absolute; top: 6px; right: 6px; min-width: 16px; height: 16px; padding: 0 4px; border-radius: 99px; background: var(--danger); color: #fff; font-size: .65rem; font-weight: 700; display: grid; place-items: center; }

/* --- Формы ------------------------------------------------------------------------------- */
.field { margin-bottom: 16px; }
.field label, .field .label { display: block; font-weight: 580; font-size: .9rem; margin-bottom: 6px; }
.field .req { color: var(--danger); margin-left: 2px; }
.help { color: var(--text-3); font-size: .82rem; margin-top: 5px; }
.errors { color: var(--danger); font-size: .84rem; margin: 6px 0 0; padding: 0; list-style: none; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--danger); }
input[type=text], input[type=password], input[type=email], input[type=url], input[type=number], input[type=search],
input[type=date], input[type=datetime-local], select, textarea {
  width: 100%; height: 40px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text); font: inherit; font-size: .95rem; transition: border-color .12s, box-shadow .12s;
}
textarea { height: auto; min-height: 96px; padding: 10px 12px; resize: vertical; line-height: 1.5; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: var(--focus); }
input[type=file] { font: inherit; font-size: .9rem; max-width: 100%; }
input[type=checkbox], input[type=radio] { accent-color: var(--accent); width: 16px; height: 16px; margin: 0; flex: none; }
.check { display: flex; gap: 9px; align-items: flex-start; font-weight: 500 !important; cursor: pointer; }
.check input { margin-top: 3px; }
.choices { display: flex; flex-direction: column; gap: 8px; margin: 0; padding: 0; list-style: none; }
.choices label { display: flex; gap: 9px; align-items: flex-start; font-weight: 500; cursor: pointer; margin: 0; }
.choices input { margin-top: 3px; }
.choices.inline { flex-direction: row; flex-wrap: wrap; gap: 6px 18px; }
.segmented { display: inline-flex; padding: 3px; background: var(--bg-sunken); border-radius: 9px; gap: 2px; flex-wrap: wrap; }
.segmented a, .segmented button { padding: 6px 12px; border-radius: 7px; color: var(--text-2); font-weight: 560; font-size: .87rem; border: 0; background: none; cursor: pointer; font-family: inherit; }
.segmented a:hover { text-decoration: none; color: var(--text); }
.segmented [aria-current="true"], .segmented .on { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; padding-top: 6px; }
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; align-items: end; }
.filters .field { margin: 0; }
.filters label { font-size: .8rem; color: var(--text-2); }

.swatches { display: flex; gap: 8px; flex-wrap: wrap; list-style: none; padding: 0; margin: 0; }
.swatches label { position: relative; cursor: pointer; margin: 0; }
.swatches input { position: absolute; opacity: 0; }
.swatches span { display: block; width: 30px; height: 30px; border-radius: 9px; background: var(--sc); box-shadow: inset 0 0 0 1px rgba(0,0,0,.08); }
.swatches input:checked + span { box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--sc); }
.swatches input:focus-visible + span { box-shadow: var(--focus); }

/* Markdown-редактор */
.md-editor { border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: var(--surface); overflow: hidden; }
.md-editor:focus-within { border-color: var(--accent); box-shadow: var(--focus); }
.md-toolbar { display: flex; gap: 2px; padding: 5px; border-bottom: 1px solid var(--border); background: var(--surface-2); flex-wrap: wrap; align-items: center; }
.md-toolbar button { height: 28px; min-width: 30px; padding: 0 8px; border: 0; background: none; color: var(--text-2); border-radius: 5px; cursor: pointer; font: 600 .82rem var(--font); }
.md-toolbar button:hover { background: var(--bg-sunken); color: var(--text); }
.md-toolbar button[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent-text); }
.md-toolbar .sep { width: 1px; height: 18px; background: var(--border); margin: 0 4px; }
.md-editor textarea { border: 0; border-radius: 0; box-shadow: none !important; min-height: 180px; }
.md-preview { padding: 12px 14px; min-height: 180px; }

/* --- Сообщения ------------------------------------------------------------------------------ */
.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 60; display: flex; flex-direction: column; gap: 8px; max-width: min(420px, calc(100vw - 32px)); }
.toast {
  display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-lg); font-size: .92rem; animation: toast-in .2s ease-out;
}
.toast .icon { margin-top: 2px; }
.toast.success .icon { color: var(--success); } .toast.error .icon { color: var(--danger); }
.toast.warning .icon { color: var(--warning); } .toast.info .icon { color: var(--info); }
.toast button { margin-left: auto; background: none; border: 0; color: var(--text-3); cursor: pointer; padding: 0 2px; font-size: 1.1rem; line-height: 1; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
.alert { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--radius); font-size: .93rem; margin-bottom: 16px; border: 1px solid transparent; }
.alert .icon { margin-top: 2px; }
.alert.tone-warning { border-color: color-mix(in srgb, var(--warning) 25%, transparent); }
.alert.tone-danger { border-color: color-mix(in srgb, var(--danger) 25%, transparent); }
.alert.tone-info { border-color: color-mix(in srgb, var(--info) 25%, transparent); }
.alert.tone-success { border-color: color-mix(in srgb, var(--success) 25%, transparent); }
.alert p:last-child { margin: 0; }
.alert strong { display: block; margin-bottom: 2px; }

.empty { text-align: center; padding: 42px 20px; color: var(--text-3); }
.empty .icon { width: 34px; height: 34px; margin-bottom: 10px; opacity: .7; }
.empty h3 { color: var(--text-2); margin-bottom: 4px; }
.empty p { margin: 0 auto; max-width: 360px; font-size: .9rem; }

/* Диалог подтверждения */
dialog.confirm { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 0; width: min(440px, calc(100vw - 32px)); background: var(--surface); color: var(--text); box-shadow: var(--shadow-lg); }
dialog.confirm::backdrop { background: rgba(8, 10, 15, .45); backdrop-filter: blur(2px); }
dialog.confirm .body { padding: 22px 22px 8px; }
dialog.confirm .foot { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 22px 20px; }

/* --- Таблицы ----------------------------------------------------------------------------------- */
.table-wrap { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th { text-align: left; font-weight: 600; color: var(--text-3); font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--surface-2); white-space: nowrap; }
.table td { padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: var(--surface-2); }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table a.row-title { color: var(--text); font-weight: 580; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; overflow-x: auto; }
.tabs a { padding: 9px 12px; color: var(--text-2); font-weight: 560; font-size: .9rem; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs a:hover { text-decoration: none; color: var(--text); }
.tabs a[aria-current="page"] { color: var(--accent-text); border-color: var(--accent); }
.tabs .count { color: var(--text-3); font-weight: 500; margin-left: 4px; }

.pagination { display: flex; gap: 6px; align-items: center; justify-content: center; padding: 18px 0 4px; }

/* --- Типографика текста ------------------------------------------------------------------------------ */
.prose { line-height: 1.7; overflow-wrap: anywhere; }
.prose h2 { font-size: 1.15rem; margin-top: 1.4em; } .prose h3 { font-size: 1.02rem; margin-top: 1.2em; }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 .9em; }
.prose li { margin: .2em 0; }
.prose blockquote { margin: 0 0 1em; padding: 4px 14px; border-left: 3px solid var(--border-strong); color: var(--text-2); }
.prose pre { background: var(--bg-sunken); padding: 12px 14px; border-radius: var(--radius-sm); overflow-x: auto; }
.prose code { background: var(--bg-sunken); padding: 1px 5px; border-radius: 4px; }
.prose pre code { background: none; padding: 0; }
.prose table { border-collapse: collapse; margin-bottom: 1em; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--border); padding: 6px 10px; }
.prose > :last-child { margin-bottom: 0; }

/* --- Вложения --------------------------------------------------------------------------------------------- */
.attachments { display: grid; gap: 10px; }
.attachment { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.attachment .ext { width: 40px; height: 40px; border-radius: 8px; display: grid; place-items: center; font: 700 .66rem var(--mono); background: var(--accent-soft); color: var(--accent-text); flex: none; }
.attachment .grow { flex: 1; min-width: 0; }
.attachment .name { font-weight: 560; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attachment .meta { font-size: .8rem; color: var(--text-3); }
.media-frame { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: #000; border: 1px solid var(--border); }
.media-frame iframe, .media-frame video { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.image-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; }
.image-grid a { display: block; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4 / 3; background: var(--bg-sunken); }
.image-grid img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pdf-frame { width: 100%; height: 70vh; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-2); }

/* --- Дневник / календарь -------------------------------------------------------------------------------------- */
.cal-toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.cal-toolbar h2 { margin: 0 8px; font-size: 1.15rem; min-width: 0; }
.cal-month { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; background: var(--border); gap: 1px; }
.cal-month .dow { background: var(--surface-2); padding: 8px 10px; font-size: .74rem; font-weight: 650; color: var(--text-3); text-transform: uppercase; letter-spacing: .05em; }
.cal-cell { background: var(--surface); min-height: 112px; padding: 6px 7px 8px; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.cal-cell.out { background: var(--surface-2); }
.cal-cell.out .day-num { color: var(--text-3); opacity: .6; }
.day-num { font-size: .8rem; font-weight: 650; color: var(--text-2); display: inline-grid; place-items: center; min-width: 24px; height: 24px; border-radius: 99px; align-self: flex-start; font-variant-numeric: tabular-nums; }
.day-num:hover { text-decoration: none; background: var(--bg-sunken); }
.is-today .day-num { background: var(--accent); color: var(--on-accent); }
.event {
  display: block; font-size: .78rem; line-height: 1.3; padding: 3px 7px; border-radius: 5px; color: var(--text);
  background: color-mix(in srgb, var(--sc, var(--c-slate)) 12%, var(--surface)); border-left: 3px solid var(--sc, var(--c-slate));
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.event:hover { text-decoration: none; color: var(--text); background: color-mix(in srgb, var(--sc, var(--c-slate)) 20%, var(--surface)); }
.event.done { opacity: .55; text-decoration: line-through; }
.event.personal { border-left-style: dashed; background: transparent; box-shadow: inset 0 0 0 1px var(--border); color: var(--text-2); }
.event.draft { background: repeating-linear-gradient(135deg, var(--surface), var(--surface) 6px, var(--surface-2) 6px, var(--surface-2) 12px); }
.more { font-size: .75rem; color: var(--text-3); padding-left: 4px; }

.cal-week { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; }
.cal-week .col { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); min-height: 280px; display: flex; flex-direction: column; min-width: 0; }
.cal-week .col.is-today { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.cal-week .col-head { padding: 10px 12px; border-bottom: 1px solid var(--border); display: flex; align-items: baseline; gap: 8px; }
.cal-week .col-head .dow { font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-3); font-weight: 650; }
.cal-week .col-head .d { font-weight: 700; font-size: 1.05rem; }
.cal-week .col.is-today .d { color: var(--accent); }
.cal-week .col-body { padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.task-tile { display: block; padding: 8px 10px; border-radius: 8px; color: var(--text); font-size: .84rem; background: color-mix(in srgb, var(--sc, var(--c-slate)) 9%, var(--surface)); border-left: 3px solid var(--sc, var(--c-slate)); }
.task-tile:hover { text-decoration: none; color: var(--text); background: color-mix(in srgb, var(--sc, var(--c-slate)) 16%, var(--surface)); }
.task-tile .t { font-weight: 600; display: block; line-height: 1.3; }
.task-tile .m { color: var(--text-3); font-size: .76rem; }
.task-tile.done { opacity: .55; } .task-tile.done .t { text-decoration: line-through; }
.task-tile.personal { background: transparent; border-left-style: dashed; box-shadow: inset 0 0 0 1px var(--border); }

/* Строка задания */
.task-row { display: flex; align-items: center; gap: 14px; padding: 13px 18px; color: inherit; }
.task-row:hover { background: var(--surface-2); text-decoration: none; color: inherit; }
.task-row .grow { flex: 1; min-width: 0; }
.task-row .title { font-weight: 590; display: block; }
.task-row.done .title { text-decoration: line-through; color: var(--text-3); }
.task-row .meta { color: var(--text-3); font-size: .83rem; display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 2px; }
.due { font-family: var(--mono); font-size: .8rem; white-space: nowrap; }
.quick-status { display: flex; gap: 4px; }
.quick-status button { width: 30px; height: 30px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text-3); cursor: pointer; display: grid; place-items: center; padding: 0; }
.quick-status button:hover { border-color: var(--border-strong); color: var(--text); }
.quick-status button[aria-pressed="true"].st-done { background: var(--success-soft); color: var(--success); border-color: transparent; }
.quick-status button[aria-pressed="true"].st-in_progress { background: var(--warning-soft); color: var(--warning); border-color: transparent; }

.status-picker { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; list-style: none; padding: 0; margin: 0; }
.status-picker label { display: flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 6px; border: 1px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; font-size: .84rem; font-weight: 560; text-align: center; margin: 0; }
.status-picker input { position: absolute; opacity: 0; }
.status-picker label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-text); }
.status-picker label:has(input:focus-visible) { box-shadow: var(--focus); }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 9px 18px; margin: 0; font-size: .92rem; }
.kv dt { color: var(--text-3); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { position: relative; padding: 0 0 14px 20px; font-size: .88rem; }
.timeline li::before { content: ""; position: absolute; left: 4px; top: 7px; width: 7px; height: 7px; border-radius: 50%; background: var(--border-strong); }
.timeline li::after { content: ""; position: absolute; left: 7px; top: 16px; bottom: 0; width: 1px; background: var(--border); }
.timeline li:last-child::after { display: none; }

/* Новости */
.news-card .cover { aspect-ratio: 16 / 7; overflow: hidden; border-radius: var(--radius-lg) var(--radius-lg) 0 0; background: var(--bg-sunken); }
.news-card .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-card h3 { margin: 6px 0; }
.news-card .excerpt { color: var(--text-2); font-size: .92rem; display: -webkit-box; -webkit-line-clamp: 3; line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* Переписка */
.thread { display: flex; flex-direction: column; gap: 14px; }
.msg { max-width: 85%; padding: 12px 16px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); }
.msg.staff { background: var(--accent-soft); border-color: transparent; }
.msg.mine { align-self: flex-end; }
.msg .who { font-size: .8rem; color: var(--text-3); margin-bottom: 4px; display: flex; gap: 8px; }
.msg .who strong { color: var(--text-2); }
.msg .attachments { margin-top: 10px; }

/* Оплата */
.access-hero { display: flex; gap: 18px; align-items: center; padding: 22px; flex-wrap: wrap; }
.access-hero .big { font-size: 2.1rem; font-weight: 750; letter-spacing: -.02em; line-height: 1; font-variant-numeric: tabular-nums; }
.access-icon { width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; flex: none; }
.access-icon .icon { width: 26px; height: 26px; }
.qr { width: 180px; height: 180px; border-radius: 12px; background: #fff; padding: 12px; display: grid; grid-template-columns: repeat(21, 1fr); gap: 0; box-shadow: inset 0 0 0 1px var(--border); }
.qr i { background: #111; } .qr b { background: transparent; }
.bank { max-width: 420px; margin: 40px auto; }
.bank .card-head { background: linear-gradient(135deg, #1d4ed8, #7c3aed); color: #fff; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }

/* Аутентификация */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; background:
  radial-gradient(1200px 500px at 10% -10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
  radial-gradient(900px 500px at 110% 110%, color-mix(in srgb, #22d3ee 10%, transparent), transparent 60%), var(--bg); }
.auth-card { width: 100%; max-width: 410px; }
.auth-card .card-body { padding: 30px; }
.auth-card .brand { justify-content: center; padding-bottom: 6px; }
.auth-card h1 { text-align: center; font-size: 1.35rem; margin-bottom: 4px; }
.auth-card .lead { text-align: center; color: var(--text-2); margin-bottom: 22px; font-size: .93rem; }
.auth-foot { text-align: center; font-size: .83rem; color: var(--text-3); margin-top: 18px; }

.error-page { text-align: center; padding: 70px 20px; }
.error-page .code { font: 800 4.5rem/1 var(--mono); color: var(--accent); opacity: .85; letter-spacing: -.04em; }

.secret { display: flex; gap: 8px; align-items: center; }
.secret input { font-family: var(--mono); font-size: .85rem; }
.hash { font-family: var(--mono); font-size: .75rem; color: var(--text-3); word-break: break-all; }
pre.json { background: var(--bg-sunken); padding: 10px 12px; border-radius: var(--radius-sm); font-size: .8rem; overflow-x: auto; margin: 0; white-space: pre-wrap; word-break: break-word; }
.draft-banner { display: flex; gap: 10px; align-items: center; padding: 10px 14px; margin-bottom: 16px; border-radius: var(--radius); background: repeating-linear-gradient(135deg, var(--warning-soft), var(--warning-soft) 10px, color-mix(in srgb, var(--warning-soft) 70%, var(--surface)) 10px, color-mix(in srgb, var(--warning-soft) 70%, var(--surface)) 20px); color: var(--warning); font-weight: 600; font-size: .9rem; }
.overlay { display: none; }

/* --- Адаптивность ---------------------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: minmax(0, 1fr); }
  .cal-week { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 960px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: min(290px, 84vw); z-index: 50; transform: translateX(-102%); transition: transform .22s ease; box-shadow: var(--shadow-lg); }
  body.nav-open .sidebar { transform: none; }
  body.nav-open .overlay { display: block; position: fixed; inset: 0; z-index: 40; background: rgba(8, 10, 15, .4); }
  .menu-toggle { display: inline-flex; }
  .topbar { padding: 0 16px; }
  .content { padding: 20px 16px; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cal-cell { min-height: 84px; }
  .cal-cell .event { font-size: .7rem; padding: 2px 5px; }
}
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  h1 { font-size: 1.35rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
  .stat .value { font-size: 1.5rem; }
  .topbar .search { display: none; }
  [data-mobile-search] { display: inline-flex; }
  .cal-week { grid-template-columns: minmax(0, 1fr); }
  .cal-week .col { min-height: 0; }
  .cal-month .dow { padding: 6px 4px; font-size: .66rem; text-align: center; }
  .cal-cell { min-height: 58px; padding: 4px; align-items: center; }
  .cal-cell .event { display: none; }
  .cal-cell .dots { display: flex; }
  .card-body { padding: 16px; }
  .list-item, .task-row { padding: 12px 14px; }
  .task-row > .badge { display: none; }
  .task-li { padding-right: 10px; }
  .page-head { margin-bottom: 16px; }
  .msg { max-width: 100%; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 8px; }
  .table-stack thead { display: none; }
  .table-stack tr { display: block; border-bottom: 1px solid var(--border); padding: 8px 0; }
  .table-stack td { display: flex; justify-content: space-between; gap: 12px; border: 0; padding: 4px 14px; }
  .table-stack td::before { content: attr(data-label); color: var(--text-3); font-size: .8rem; }
  .hide-sm { display: none !important; }
  .toasts { right: 16px; left: 16px; bottom: 16px; }
}
.dots { display: none; gap: 3px; flex-wrap: wrap; justify-content: center; }
.dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--sc, var(--c-slate)); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }
@media print { .sidebar, .topbar, .toasts, .no-print { display: none !important; } .shell { display: block; } }
.task-li { display: flex; align-items: center; gap: 8px; padding-right: 14px; }
.task-li .task-row { flex: 1; min-width: 0; }
.task-row .title { overflow-wrap: anywhere; }
.mb { margin-bottom: 18px; }
.mt { margin-top: 18px; }
.mt-sm { margin-top: 8px; }

/* Расписание */
.schedule { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; align-items: start; }
.schedule-day.is-today { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.schedule-day .card-head h2 { flex: 1; }
.schedule-empty { padding: 14px 20px; margin: 0; }
.lesson { display: flex; align-items: center; gap: 14px; padding: 12px 16px 12px 14px; border-left: 3px solid var(--sc, var(--border)); }
.lesson .grow { flex: 1; min-width: 0; }
.lesson .title { font-weight: 600; display: block; }
.lesson .meta { color: var(--text-3); font-size: .84rem; display: flex; gap: 5px; align-items: center; }
.lesson-time { display: flex; flex-direction: column; font-size: .88rem; font-weight: 600; line-height: 1.35; min-width: 44px; }
.lesson-time .muted { font-weight: 500; font-size: .8rem; }
.lesson-room { font: 700 .82rem var(--mono); padding: 5px 9px; border-radius: 7px; background: color-mix(in srgb, var(--sc, var(--c-slate)) 12%, var(--surface)); color: var(--text); white-space: nowrap; }

/* Оплата по СБП */
.checkout { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.checkout > .stack { flex: 1; min-width: 220px; }
.checkout-qr { text-align: center; }
.checkout-qr img { display: block; width: 220px; height: 220px; padding: 10px; background: #fff; border-radius: 12px; box-shadow: inset 0 0 0 1px var(--border); margin: 0 auto 8px; }
@media (max-width: 640px) { .checkout-qr.desktop-only { display: none; } }

.group-switch select { height: 34px; width: auto; max-width: 160px; font: 600 .85rem var(--mono); padding: 0 8px; }

/* Выбор подгруппы */
.subgroup-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid var(--border); margin: 0; }
.subgroup-row .label { margin: 0; }
.subgroup-pick { list-style: none; margin: 0; }
.subgroup-pick label { display: block; padding: 6px 14px; border-radius: 7px; cursor: pointer; font-weight: 560; font-size: .88rem; color: var(--text-2); margin: 0; }
.subgroup-pick input { position: absolute; opacity: 0; }
.subgroup-pick label:has(input:checked) { background: var(--surface); color: var(--accent-text); box-shadow: var(--shadow-sm); }
.subgroup-pick label:has(input:focus-visible) { box-shadow: var(--focus); }
.lesson .meta { flex-wrap: wrap; gap: 8px; }

.pay-steps { margin: 0; padding-left: 1.3em; display: flex; flex-direction: column; gap: 12px; flex: 1; min-width: 240px; }
.pay-steps li { line-height: 1.5; }
.pay-steps .secret { max-width: 360px; }
.qr-preview { border-radius: 8px; background: #fff; padding: 6px; box-shadow: inset 0 0 0 1px var(--border); }
.claim { display: flex; gap: 20px; padding: 16px 20px; align-items: flex-start; flex-wrap: wrap; }
.claim .grow { flex: 1; min-width: 260px; }
.claim-actions { display: flex; flex-direction: column; gap: 10px; width: 240px; }

/* Виды занятий в карточке предмета */
fieldset.kinds { border: 0; padding: 0; margin: 0 0 16px; min-width: 0; }
fieldset.kinds legend { padding: 0; margin-bottom: 4px; }
.kinds-head, .kinds-row { display: grid; grid-template-columns: 150px 1.2fr .6fr 1.4fr; gap: 8px; align-items: center; }
.kinds-head { font-size: .76rem; color: var(--text-3); margin: 8px 0 4px; }
.kinds-row { padding: 6px 0; border-top: 1px solid var(--border); }
.kinds-row input[type=text] { height: 34px; font-size: .9rem; }
@media (max-width: 760px) {
  .kinds-head { display: none; }
  .kinds-row { grid-template-columns: 1fr 1fr; }
  .kinds-row .check { grid-column: 1 / -1; }
  .kinds-row input:last-child { grid-column: 1 / -1; }
}

/* Метка вида занятия в расписании */
.kind-tag { display: inline-block; font: 700 .68rem/1 var(--mono); letter-spacing: .03em; text-transform: uppercase; padding: 3px 5px; border-radius: 4px; margin-right: 6px; vertical-align: 2px; box-shadow: inset 0 0 0 1px currentColor; }
.kind-lecture { color: var(--info); }
.kind-seminar { color: var(--success); }
.kind-lab { color: var(--warning); }
/* Поля вида занятия показываются, только когда вид отмечен */
.kinds-row:not(:has(input[type=checkbox]:checked)) input[type=text] { display: none; }
.kinds-row:not(:has(input[type=checkbox]:checked)) .check { color: var(--text-3); }

/* Задания без срока: сворачиваемый блок в дневнике и группа на главной */
details.undated > summary { display: flex; align-items: center; gap: 10px; padding: 12px 18px; cursor: pointer; list-style: none; }
details.undated > summary::-webkit-details-marker { display: none; }
details.undated > summary:focus-visible { box-shadow: var(--focus); border-radius: var(--radius-lg); }
details.undated > summary > .icon:last-child { transition: transform .15s; color: var(--text-3); }
details.undated[open] > summary > .icon:last-child { transform: rotate(90deg); }
details.undated[open] > summary { border-bottom: 1px solid var(--border); }
.undated-title { display: inline-flex; align-items: center; gap: 8px; font-weight: 650; }
.undated-foot { padding: 10px 18px; margin: 0; border-top: 1px solid var(--border); }
.list-subhead { display: flex; align-items: center; gap: 8px; padding: 10px 20px 6px; font-size: .78rem; font-weight: 650; text-transform: uppercase; letter-spacing: .05em; color: var(--text-3); border-top: 1px solid var(--border); background: var(--surface-2); }
.list-more { display: flex; align-items: center; gap: 4px; padding: 10px 20px; font-size: .88rem; border-top: 1px solid var(--border); }

/* Пара в расписании — ссылка на задания предмета */
a.lesson-link { color: inherit; text-decoration: none; transition: background .12s; }
a.lesson-link:hover { background: var(--surface-2); color: inherit; text-decoration: none; }
a.lesson-link:hover .title { color: var(--accent-text); }
a.lesson-link:focus-visible { box-shadow: inset var(--focus); border-radius: 0; }
.lesson-go { color: var(--text-3); display: grid; place-items: center; }
a.lesson-link:hover .lesson-go { color: var(--accent); }
#tasks { scroll-margin-top: calc(var(--topbar-h) + 12px); }

/* =========================================================================
   Графики (обзор разработчика). Цвета — по проверенной палитре: серия — синий слот 1,
   части оплаты — статусные цвета + нейтральный серый; проверено validate_palette.js.
   ========================================================================= */
:root {
  --viz-series: #2a78d6; --viz-series-hover: #5598e7;
  --viz-grid: #e1e0d9; --viz-axis: #c3c2b7; --viz-muted: #898781;
  --viz-good: #0ca30c; --viz-info: #2a78d6; --viz-neutral: #c3c2b7; --viz-warning: #fab219; --viz-critical: #d03b3b;
  --viz-track: #cde2fb;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    --viz-series: #3987e5; --viz-series-hover: #6da7ec;
    --viz-grid: #2c2c2a; --viz-axis: #383835;
    --viz-info: #3987e5; --viz-neutral: #5b5a55; --viz-track: #104281;
  }
}
:root[data-theme="dark"] {
  --viz-series: #3987e5; --viz-series-hover: #6da7ec;
  --viz-grid: #2c2c2a; --viz-axis: #383835;
  --viz-info: #3987e5; --viz-neutral: #5b5a55; --viz-track: #104281;
}

.dev-stats-head { display: flex; align-items: baseline; gap: 12px; margin: 6px 0 12px; flex-wrap: wrap; }
.dev-stats-head h2 { margin: 0; }
.viz-grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 18px; margin-bottom: 18px; }
.viz-card { padding: 18px 20px; min-width: 0; }
.viz-card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.viz-card-head h3 { margin: 0 0 2px; font-size: 1rem; }
.viz-card-head p { margin: 0; }
.viz-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px 16px; margin: 0 0 14px; }
.viz-kpis dt { font-size: .76rem; color: var(--text-3); }
.viz-kpis dd { margin: 2px 0 0; font-size: 1.35rem; font-weight: 650; letter-spacing: -.01em; }
.viz-wrap { position: relative; }
svg.viz { display: block; width: 100%; height: auto; overflow: visible; }
.viz-gridline { stroke: var(--viz-grid); stroke-width: 1; shape-rendering: crispEdges; }
.viz-axis { stroke: var(--viz-axis); stroke-width: 1; shape-rendering: crispEdges; }
.viz-tick { fill: var(--viz-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.viz-bar { fill: var(--viz-series); transition: fill .12s; }
.viz-hit { fill: transparent; }
.viz-col, .viz-seg { outline: none; cursor: default; }
.viz-col:hover .viz-bar, .viz-col:focus-visible .viz-bar { fill: var(--viz-series-hover); }
.viz-col:focus-visible .viz-hit { fill: var(--accent-soft); }
.viz-seg:hover rect, .viz-seg:focus-visible rect { opacity: .78; }
.st-good { fill: var(--viz-good); background: var(--viz-good); }
.st-info { fill: var(--viz-info); background: var(--viz-info); }
.st-neutral { fill: var(--viz-neutral); background: var(--viz-neutral); }
.st-warning { fill: var(--viz-warning); background: var(--viz-warning); }
.st-critical { fill: var(--viz-critical); background: var(--viz-critical); }

.viz-hero { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.viz-hero-value { font-size: 3rem; font-weight: 700; letter-spacing: -.03em; line-height: 1; }
.viz-legend { list-style: none; margin: 14px 0 0; padding: 0; }
.viz-legend li + li { border-top: 1px solid var(--border); }
.viz-legend a { display: flex; align-items: center; gap: 10px; padding: 7px 2px; color: var(--text); font-size: .9rem; }
.viz-legend a:hover { text-decoration: none; background: var(--surface-2); }
.viz-legend strong { font-variant-numeric: tabular-nums; }
.viz-share { min-width: 38px; text-align: right; font-variant-numeric: tabular-nums; }
.viz-swatch { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.viz-note { margin: 10px 0 0; }
.viz-table { margin-top: 10px; font-size: .88rem; }
.viz-table summary { cursor: pointer; color: var(--text-2); }
.viz-table .table-wrap { max-height: 260px; overflow-y: auto; margin-top: 8px; }

.viz-tip {
  position: absolute; z-index: 5; pointer-events: none; transform: translate(-50%, calc(-100% - 8px));
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow);
  padding: 6px 10px; font-size: .82rem; white-space: nowrap; display: flex; flex-direction: column; gap: 1px;
}
.viz-tip strong { font-size: .95rem; color: var(--text); }
.viz-tip span { color: var(--text-2); }

.mini-cell { display: inline-flex; align-items: center; gap: 8px; min-width: 140px; }
svg.mini { width: 90px; height: 8px; flex: none; }
.mini-fill { fill: var(--viz-series); }
.mini-track { fill: var(--viz-track); }

@media (max-width: 1100px) { .viz-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) {
  .viz-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .viz-hero-value { font-size: 2.4rem; }
  .viz-card { padding: 14px; }
}
@media (forced-colors: active) { .viz-bar, .mini-fill { fill: CanvasText; } }
.viz-tip[hidden] { display: none; }
.viz-legend .grow { flex: 1; min-width: 0; }
/* Компактнее мини-полосы, чтобы таблица групп помещалась без горизонтальной прокрутки */
.viz-groups .mini-cell { min-width: 0; gap: 6px; }
.viz-groups svg.mini { width: 56px; }
.viz-groups .table th, .viz-groups .table td { padding-left: 10px; padding-right: 10px; }
.viz-groups .table th { white-space: normal; }

/* Выделенный (сегодняшний) день: полосы пар жёлтые, чтобы не сливаться с рамкой выделения,
   а карточка обрезает содержимое по скруглённым углам — полоса не выходит за рамку */
:root { --today-strip: #eda100; }
@media (prefers-color-scheme: dark) { :root:where(:not([data-theme="light"])) { --today-strip: #fab219; } }
:root[data-theme="dark"] { --today-strip: #fab219; }
.schedule-day, .cal-week .col { overflow: hidden; }
.schedule-day.is-today .lesson { border-left-color: var(--today-strip); }
.cal-week .col.is-today .task-tile { border-left-color: var(--today-strip); }

/* =========================================================================
   Главная из настраиваемых блоков: цели, заметки, личная статистика
   ========================================================================= */
.dash { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-items: start; }
.dash-block { min-width: 0; }
.dash-block.wide { grid-column: 1 / -1; }
.dash-block > .card { margin: 0; }
@media (max-width: 900px) { .dash { grid-template-columns: minmax(0, 1fr); } }

/* Настройка главной */
details.customize > summary { display: flex; align-items: center; gap: 10px; padding: 11px 18px; cursor: pointer; list-style: none; font-weight: 600; }
details.customize > summary::-webkit-details-marker { display: none; }
details.customize > summary > .icon:last-child { color: var(--text-3); transition: transform .15s; }
details.customize[open] > summary > .icon:last-child { transform: rotate(90deg); }
details.customize[open] > summary { border-bottom: 1px solid var(--border); }
details.customize > summary:focus-visible { box-shadow: var(--focus); border-radius: var(--radius-lg); }
.customize-list { list-style: none; margin: 0; padding: 4px 18px; }
.customize-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border); background: var(--surface); }
.customize-row:last-child { border-bottom: 0; }
.customize-name { margin: 0 !important; }
.customize-name > span { display: flex; flex-direction: column; gap: 1px; }
.customize-row:not(:has(input[type=checkbox]:checked)) .customize-name strong { color: var(--text-3); text-decoration: line-through; }
.drag-handle { display: grid; place-items: center; width: 30px; height: 36px; margin-left: -6px; padding: 0; border: 0; border-radius: 7px; background: none; color: var(--text-3); cursor: grab; touch-action: none; }
.drag-handle:hover { background: var(--surface-2); color: var(--text); }
@media (hover: hover) and (pointer: fine) { .customize-row { cursor: grab; } .customize-row:hover .drag-handle { color: var(--text); } }
.drag-handle:focus-visible { box-shadow: var(--focus); color: var(--text); }
.customize-row.is-dragging { position: relative; z-index: 2; border-radius: 10px; box-shadow: var(--shadow-lg); border-bottom-color: transparent; }
.customize-row.is-dragging .drag-handle { cursor: grabbing; color: var(--accent-text); }
.customize-list.is-sorting, .customize-list.is-sorting * { cursor: grabbing; user-select: none; }
.is-sorting-page, .is-sorting-page body { overflow-anchor: none; }
@media (pointer: coarse) { .drag-handle { width: 40px; height: 44px; margin-left: -10px; color: var(--text-2); } }
.customize-actions { padding: 12px 18px 16px; border-top: 1px solid var(--border); }
@media (max-width: 640px) {
  .customize-row { grid-template-columns: auto minmax(0, 1fr); }
  .customize-row .segmented { grid-column: 2; justify-self: start; }
}

/* Цели */
.goal { padding: 12px 18px; }
.goal-main { display: flex; align-items: center; gap: 12px; }
.goal-main .grow { flex: 1; min-width: 0; }
.goal-main .title { font-weight: 600; display: block; overflow-wrap: anywhere; }
.goal-main .meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; color: var(--text-3); font-size: .83rem; margin-top: 2px; }
.goal-check { width: 22px; height: 22px; border-radius: 7px; border: 2px solid var(--border-strong); background: var(--surface); cursor: pointer; display: grid; place-items: center; padding: 0; color: #fff; flex: none; }
.goal-check:hover { border-color: var(--accent); }
.goal-check.checked { background: var(--success); border-color: var(--success); }
.goal-step { display: inline-flex; gap: 4px; }
.goal-step .btn { font-size: 1.05rem; font-weight: 700; }
progress.goal-bar { display: block; width: 100%; height: 8px; margin-top: 10px; border: 0; border-radius: 99px; overflow: hidden; background: var(--viz-track); appearance: none; -webkit-appearance: none; }
progress.goal-bar::-webkit-progress-bar { background: var(--viz-track); border-radius: 99px; }
progress.goal-bar::-webkit-progress-value { background: var(--viz-series); border-radius: 99px; }
progress.goal-bar::-moz-progress-bar { background: var(--viz-series); border-radius: 99px; }
.goal.is-overdue .goal-main .title { color: var(--danger); }
.goal.is-done .title { text-decoration: line-through; color: var(--text-3); }
.goal-edit, .goal-more, .goals-done, .notes-more { font-size: .88rem; }
.goal-edit > summary, .goal-more > summary { cursor: pointer; color: var(--text-3); margin-top: 6px; width: max-content; }
.goal-form { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.goal-form-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin: 8px 0; }
.goal-form-row label { display: flex; flex-direction: column; gap: 3px; font-size: .78rem; color: var(--text-3); font-weight: 500; }
.goal-form-row input { height: 34px; font-size: .9rem; }
.goal-more .goal-form-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 640px) { .goal-form-row, .goal-more .goal-form-row { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.goals-done > summary, .notes-more > summary { cursor: pointer; padding: 10px 18px; color: var(--text-2); border-top: 1px solid var(--border); }
.goal-add { padding: 12px 18px 16px; border-top: 1px solid var(--border); }
.goal-add input[type=text] { height: 36px; }
.empty-sm { padding: 18px 20px; }

/* Заметки */
.note-add { padding: 12px 18px; display: flex; flex-direction: column; gap: 8px; border-bottom: 1px solid var(--border); }
.note-add textarea { min-height: 0; }
.note { padding: 12px 18px; }
.note.is-pinned { background: color-mix(in srgb, var(--today-strip) 9%, var(--surface)); }
.note-text { white-space: normal; overflow-wrap: anywhere; line-height: 1.55; }
.note-meta { display: flex; align-items: center; gap: 4px; margin-top: 6px; flex-wrap: wrap; }
.note-edit { width: 100%; }
.note-edit[open] { flex-basis: 100%; }
.note-edit > summary { list-style: none; display: inline-flex; }
.note-edit > summary::-webkit-details-marker { display: none; }
.note-edit form { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.note-meta > .note-edit:not([open]) { width: auto; }
/* Узкий блок на главной ведёт себя как телефон: метка срока прячется, дата остаётся в строке */
.dash-block { container-type: inline-size; }
@container (max-width: 440px) {
  .task-row > .badge { display: none; }
  .task-row { padding: 12px 14px; gap: 10px; }
  .task-li { padding-right: 10px; }
  .task-row .title { overflow-wrap: normal; word-break: normal; hyphens: auto; }
}

/* Моя статистика: вкладки и панели */
.stats-head { flex-wrap: wrap; }
.stats-head .segmented button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }
.stats-head .segmented button:focus-visible { box-shadow: var(--focus); }
.stats-panel + .stats-panel { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); }
.js .stats-panel + .stats-panel { margin-top: 0; padding-top: 0; border-top: 0; }
.stats-panel-title { margin: 0 0 10px; font-size: .92rem; font-weight: 600; color: var(--text-2); }
.js .stats-panel-title { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.stats-panel-lead { margin: 0 0 6px; }
progress.stat-bar { margin-top: 6px; }
.stat-subjects { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px 24px; }
.stat-subjects li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0 10px; align-items: baseline; font-size: .9rem; }
.stat-subjects .stat-bar { grid-column: 1 / -1; height: 6px; }
.stat-subject-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stat-subject-num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.stat-stack { display: block; width: 100%; height: 14px; margin: 4px 0 2px; border-radius: 99px; overflow: hidden; }
.stat-stack rect { stroke: var(--surface); stroke-width: 2px; vector-effect: non-scaling-stroke; }
.stat-legend li { display: flex; align-items: center; gap: 10px; padding: 7px 2px; font-size: .9rem; }
.stat-legend strong { min-width: 24px; text-align: right; font-variant-numeric: tabular-nums; }
@media (max-width: 640px) { .stat-legend .muted.small { display: none; } }

html:not(.js) [data-tabs] { display: none; }
.stat-subjects .stat-all { grid-column: 1 / -1; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.stat-subjects .stat-all .stat-bar { height: 8px; }

/* Календарь срока сдачи */
.datepick { position: relative; }
.datepick-btn {
  display: flex; align-items: center; width: 100%; height: 40px; padding: 0 12px; border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); background: var(--surface); color: var(--text); font: inherit; font-size: .95rem; text-align: left; cursor: pointer;
}
.datepick-btn::after { content: ""; margin-left: auto; width: 7px; height: 7px; border: solid var(--text-3); border-width: 0 1.5px 1.5px 0; transform: translateY(-2px) rotate(45deg); }
.datepick-btn.is-empty { color: var(--text-3); }
.datepick-btn:focus-visible, .datepick-btn[aria-expanded="true"] { outline: none; border-color: var(--accent); box-shadow: var(--focus); }
.field.has-error .datepick-btn { border-color: var(--danger); }
.datepick-pop {
  position: absolute; z-index: 30; top: calc(100% + 6px); left: 0; width: 300px; max-width: calc(100vw - 32px); padding: 12px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-lg);
}
.datepick-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.datepick-head strong { font-size: .95rem; }
.datepick-head strong::first-letter { text-transform: uppercase; }
.datepick-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 2px; }
.datepick-wd { text-align: center; font-size: .72rem; color: var(--text-3); padding: 2px 0 4px; }
.datepick-day {
  position: relative; height: 36px; border: 0; border-radius: 8px; background: none; color: var(--text); font: inherit; font-size: .88rem;
  font-variant-numeric: tabular-nums; cursor: pointer;
}
.datepick-day:hover { background: var(--surface-2); }
.datepick-day:focus-visible { outline: none; box-shadow: var(--focus); }
.datepick-day.is-other { color: var(--text-3); }
.datepick-day.is-today { box-shadow: inset 0 0 0 1.5px var(--border-strong); font-weight: 650; }
.datepick-day.has-lesson { background: var(--accent-soft); color: var(--accent-text); font-weight: 650; }
.datepick-day.has-lesson::after { content: ""; position: absolute; left: 50%; bottom: 4px; width: 4px; height: 4px; margin-left: -2px; border-radius: 50%; background: var(--accent); }
.datepick-day.has-lesson.is-other { opacity: .6; }
.datepick-day.is-selected { background: var(--accent); color: var(--on-accent, #fff); font-weight: 700; }
.datepick-day.is-selected::after { background: var(--on-accent, #fff); }
.datepick-legend { display: flex; align-items: center; gap: 7px; margin: 10px 2px 0; font-size: .8rem; color: var(--text-2); }
.datepick-dot { width: 12px; height: 12px; border-radius: 4px; background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); flex: none; }
.datepick-foot { display: flex; justify-content: space-between; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); }
[data-next-lesson-field] .btn { width: 100%; justify-content: center; }

/* Вложения нового задания */
.link-row { margin: 0; padding: 0; border: 0; min-width: 0; }
.link-row + .link-row { padding-top: 14px; border-top: 1px dashed var(--border); }
.link-row .field { margin-bottom: 10px; }

/* Просмотр фотографий */
dialog.lightbox {
  width: 100vw; height: 100vh; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0;
  background: rgba(8, 10, 15, .94); color: #fff;
}
dialog.lightbox[open] { display: grid; grid-template-rows: auto minmax(0, 1fr); }
dialog.lightbox::backdrop { background: rgba(8, 10, 15, .6); }
html.lightbox-open { overflow: hidden; }
.lightbox-bar { display: flex; align-items: center; gap: 8px; padding: 10px 12px 10px 18px; min-width: 0; }
.lightbox-caption { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 560; }
.lightbox-count { color: rgba(255, 255, 255, .65); font-size: .88rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.lb-btn {
  display: grid; place-items: center; width: 40px; height: 40px; flex: none; padding: 0; border: 0; border-radius: 10px;
  background: rgba(255, 255, 255, .08); color: #fff; cursor: pointer;
}
.lb-btn:hover { background: rgba(255, 255, 255, .18); text-decoration: none; }
.lb-btn:focus-visible, .lb-nav:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.lightbox-stage { position: relative; display: grid; place-items: center; min-height: 0; overflow: hidden; padding: 0 72px 24px; touch-action: pinch-zoom; }
/* Высота — от экрана: проценты внутри сетки диалога не ограничивают высокие снимки */
.lightbox-stage img { max-width: 100%; max-height: calc(100vh - 84px); max-height: calc(100dvh - 84px); object-fit: contain; cursor: zoom-in; user-select: none; -webkit-user-drag: none; transition: opacity .15s; }
.lightbox-stage.is-loading img { opacity: .35; }
.lightbox-stage.is-zoomed { display: block; overflow: auto; padding: 0; touch-action: auto; }
.lightbox-stage.is-zoomed img { max-width: none; max-height: none; margin: auto; display: block; cursor: zoom-out; }
.lb-nav {
  position: absolute; top: 50%; z-index: 1; display: grid; place-items: center; width: 48px; height: 48px; margin-top: -4px; padding: 0;
  border: 0; border-radius: 50%; background: rgba(0, 0, 0, .5); box-shadow: 0 0 0 1px rgba(255, 255, 255, .18); color: #fff; cursor: pointer; transform: translateY(-50%);
}
.lb-nav:hover { background: rgba(0, 0, 0, .72); }
.lb-nav.prev { left: 14px; }
.lb-nav.next { right: 14px; }
.lb-nav[hidden] { display: none; }
@media (max-width: 640px) {
  .lightbox-stage { padding: 0 0 12px; }
  .lightbox-stage img { max-height: calc(100vh - 72px); max-height: calc(100dvh - 72px); }
  .lb-nav { top: auto; bottom: 18px; transform: none; }
}
.image-grid a[data-view] { cursor: zoom-in; }

/* Порядок фото во вложениях (панель) */
.photo-order { border-bottom: 1px solid var(--border); }
.photo-order-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.photo-sort { list-style: none; margin: 10px 0 12px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; }
.photo-tile { position: relative; aspect-ratio: 1; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); background: var(--bg-sunken); }
.photo-tile > a { display: block; width: 100%; height: 100%; }
.photo-tile img { display: block; width: 100%; height: 100%; object-fit: cover; user-select: none; -webkit-user-drag: none; }
@media (hover: hover) and (pointer: fine) { .photo-tile, .photo-tile > a { cursor: grab; } }
.photo-num {
  position: absolute; left: 6px; top: 6px; min-width: 22px; height: 22px; padding: 0 6px; border-radius: 99px; display: grid; place-items: center;
  background: rgba(0, 0, 0, .6); color: #fff; font-size: .75rem; font-weight: 700; font-variant-numeric: tabular-nums; pointer-events: none;
}
.drag-handle.photo-handle { position: absolute; right: 4px; bottom: 4px; width: 32px; height: 32px; margin: 0; border-radius: 8px; background: rgba(0, 0, 0, .55); color: #fff; }
.drag-handle.photo-handle:hover { background: rgba(0, 0, 0, .75); color: #fff; }
@media (pointer: coarse) { .drag-handle.photo-handle { width: 40px; height: 40px; margin: 0; color: #fff; } }
.photo-tile.is-dragging { z-index: 2; box-shadow: var(--shadow-lg); border-color: var(--accent); }
.photo-sort.is-sorting, .photo-sort.is-sorting * { cursor: grabbing; user-select: none; }

/* Регистрация и заявки */
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.auth-section { margin: 22px 0 12px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 1rem; }
.invite .meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; margin-top: 6px; }
.invite.is-off .meta { color: var(--text-3); }