:root {
  --bg: #f1f5f9;
  --surface: #ffffff;
  --surface-2: #f7fafc;
  --surface-3: #eef2f8;
  --border: #dde5ef;
  --border-2: #c3d1e2;
  --text: #17223a;
  --muted: #57677f;
  --muted-2: #8c9bb0;

  --nav-1: #1b2dd8;
  --nav-2: #167cf2;
  --accent: #0241e3;
  --accent-blue: #1f4fd0;
  --accent-red: #d01838;
  --accent-red-bright: #e61d43;
  --accent-blue-bg: #e5ecfc;
  --on-accent: #ffffff;

  --error-bg: #fbe9ea;
  --error-border: #f3c1c5;
  --error-text: #b00d15;
  --shadow: rgba(10, 50, 110, 0.12);

  --badge-ch-bg: #e3ebfc;
  --badge-ch-text: #1f4fd0;
  --badge-zn-bg: #fbe3e7;
  --badge-zn-text: #c40f30;
  --badge-kv-bg: #edf1f7;
  --badge-kv-text: #43536b;
  --badge-always-bg: #e6edf6;
  --badge-always-text: #2e3d55;
  --badge-ch-active-bg: linear-gradient(90deg, #1b2dd8, #167cf2);
  --badge-ch-active-text: #ffffff;
  --badge-zn-active-bg: #e61d43;
  --badge-zn-active-text: #ffffff;
}

[data-theme="dark"] {
  --bg: #0a1120;
  --surface: #111a2e;
  --surface-2: #16223a;
  --surface-3: #1d2e4c;
  --border: #25375a;
  --border-2: #3a4f78;
  --text: #e7eef8;
  --muted: #96adca;
  --muted-2: #647e9f;

  --nav-1: #1d2f72;
  --nav-2: #1358b0;
  --accent: #5ba3f7;
  --accent-blue: #86b8ff;
  --accent-red: #e96a7e;
  --accent-red-bright: #ff6b7f;
  --accent-blue-bg: #1a2d52;
  --on-accent: #ffffff;

  --error-bg: #4d1c22;
  --error-border: #7c2a34;
  --error-text: #ffc2c9;
  --shadow: rgba(0, 0, 0, 0.45);

  --badge-ch-bg: #1a2c55;
  --badge-ch-text: #8cb8ff;
  --badge-zn-bg: #54222d;
  --badge-zn-text: #ff9dae;
  --badge-kv-bg: #1e2c43;
  --badge-kv-text: #b6c6da;
  --badge-always-bg: #23314d;
  --badge-always-text: #d9e3f0;
  --badge-ch-active-bg: #3d86f2;
  --badge-ch-active-text: #ffffff;
  --badge-zn-active-bg: #ff6479;
  --badge-zn-active-text: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Roboto, -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-red); }

/* ---- Верхняя белая полоса с цветной совой (как на сайте) ---- */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.topbar-logo {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
}

.topbar-text { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }

.topbar-university {
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
}
.topbar-university:hover { color: var(--accent-red); }

.topbar-faculty {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-faculty:hover { color: var(--accent-red); }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border-2);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  flex-shrink: 0;
}

.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle .icon { width: 18px; height: 18px; }

.icon-sun { display: none; }
.icon-moon { display: block; }

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* ---- Двухколоночный layout: синяя панель + контент ---- */
.layout {
  display: flex;
  align-items: stretch;
  min-height: calc(100vh - 63px);
}

.side {
  width: 300px;
  flex-shrink: 0;
  background: linear-gradient(to bottom, var(--nav-1), var(--nav-2));
  color: var(--on-accent);
  display: flex;
  flex-direction: column;
  padding: 26px 22px 22px;
  position: sticky;
  top: 63px;
  align-self: flex-start;
  height: calc(100vh - 63px);
}

.side-head { text-align: center; padding-bottom: 18px; border-bottom: 1px solid rgba(255, 255, 255, 0.22); }

.side-logo-link { display: inline-block; }
.side-logo { width: 92px; height: 92px; }

.side-name {
  margin-top: 12px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.25;
}

.side-nav {
  padding: 18px 0;
  flex: 1;
}

.side-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 16px;
}

.side-menu a {
  display: block;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  padding: 8px 10px;
  border-left: 3px solid transparent;
}

.side-menu a:hover { color: #ffffff; background: rgba(0, 0, 0, 0.12); }

.side-menu a.active {
  color: #ffffff;
  background: rgba(0, 0, 0, 0.2);
  border-left-color: #ffffff;
}

.side-label {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

#group-select {
  width: 100%;
  font-size: 16px;
  font-weight: 500;
  padding: 9px 10px;
  border: none;
  background: #ffffff;
  color: #141c2b;
  cursor: pointer;
}

#group-select option { background: #ffffff; color: #141c2b; }

[data-theme="dark"] #group-select {
  background: rgba(10, 19, 40, 0.6);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

[data-theme="dark"] #group-select option {
  background: var(--surface-3);
  color: var(--text);
}

.side-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
}

.side-footer a { color: rgba(255, 255, 255, 0.92); }
.side-footer a:hover { color: #ffffff; text-decoration: underline; }

main {
  flex: 1;
  min-width: 0;
  padding: 26px 28px 40px;
}

.schedule { max-width: 900px; }

.schedule-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}

.schedule-title .badge { margin-left: 10px; font-size: 13px; vertical-align: middle; }

.schedule-meta { color: var(--muted); font-size: 14px; margin-bottom: 10px; }

.schedule-status {
  display: flex;
  justify-content: flex-start;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.status-chip {
  flex: 1 1 0;
  min-width: 170px;
  min-height: 54px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  padding: 8px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  box-sizing: border-box;
}

.status-chip.current-week { align-items: flex-start; }

.status-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
}

.status-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.status-chip.error {
  background: color-mix(in srgb, var(--accent-red-bright) 12%, var(--surface-2));
  border-color: var(--accent-red-bright);
}

.status-chip.error .status-value {
  color: var(--accent-red-bright);
  font-size: 13px;
  line-height: 1.3;
  word-break: break-word;
}

.current-week .badge { margin-right: 0; font-size: 12px; }

.day-block {
  background: var(--surface);
  border: 1px solid var(--border);
  margin-bottom: 14px;
}

.day-block.today {
  border-color: var(--accent-red-bright);
  box-shadow: inset 3px 0 0 var(--accent-red-bright);
}

.day-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.day-title { font-size: 15px; font-weight: 700; text-transform: capitalize; color: var(--text); }

.today-badge {
  background: var(--accent-red-bright);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  letter-spacing: 0.4px;
}

.period {
  padding: 8px 14px;
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 14px;
  border-bottom: 1px solid var(--border);
}

.period:last-child { border-bottom: none; }

.period-num { font-weight: 700; color: var(--text); }

.period-time { font-size: 13px; color: var(--muted); margin-top: 2px; }

.parities {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.parity-col {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.parity-col .lesson {
  margin-bottom: 0;
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.parity-col .window { justify-content: center; text-align: center; }

@media (max-width: 1023px) {
  .parities { flex-direction: column; }
}

.lesson {
  border: 1px solid var(--border);
  padding: 7px 11px;
  background: var(--surface-2);
  min-width: 0;
  /* длинные ссылки/слова переносятся, а не растягивают карточку на телефоне */
  word-break: break-word;
  overflow-wrap: anywhere;
}

.lesson:hover { border-color: var(--accent); }

.lesson .subject { font-weight: 700; font-size: 14px; }

.lesson .details { font-size: 13px; color: var(--muted); margin-top: 1px; }

.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  margin-right: 6px;
  vertical-align: 1px;
}

.badge-ch { background: var(--badge-ch-bg); color: var(--badge-ch-text); }
.badge-zn { background: var(--badge-zn-bg); color: var(--badge-zn-text); }
.badge-kv { background: var(--badge-kv-bg); color: var(--badge-kv-text); }
.badge-always { background: var(--badge-always-bg); color: var(--badge-always-text); }

.badge-ch.active { background: var(--badge-ch-active-bg); color: var(--badge-ch-active-text); }
.badge-zn.active { background: var(--badge-zn-active-bg); color: var(--badge-zn-active-text); }

.lesson.full { grid-column: 1 / -1; }

.empty-day { color: var(--muted-2); font-size: 14px; padding: 10px 14px; }

.lesson.empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--muted);
  background: var(--surface-3);
  border: 1px dashed var(--border-2);
  font-weight: 600;
  padding: 10px;
}

.window {
  border-style: dashed;
  color: var(--muted-2);
  background: var(--surface);
  text-align: center;
}

/* ---- поиск свободной аудитории ---- */
.free-widget {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 12px 14px;
  margin-bottom: 18px;
}

.free-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.free-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.free-hint { font-size: 13px; color: var(--muted); }

.free-controls select {
  font-size: 14px;
  padding: 6px 8px;
  border: 1px solid var(--border-2);
  background: var(--surface);
  color: var(--text);
}

.free-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 8px;
}

.free-item {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
}

.free-item:hover { border-color: var(--accent); }

.free-room { font-weight: 700; }

.free-info { font-size: 12px; color: var(--muted); }

.free-loading, .free-none { color: var(--muted); font-size: 14px; padding: 6px 0; }

.error {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-border);
  padding: 12px 16px;
  margin-bottom: 16px;
}

.loading { color: var(--muted); text-align: center; padding: 30px; }

.hidden { display: none; }

/* ---- Мобильная версия: панель сверху ---- */
@media (max-width: 860px) {
  .layout { flex-direction: column; }

  .side {
    width: 100%;
    position: static;
    height: auto;
    padding: 14px 16px;
    flex-direction: row;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
  }

  .side-head {
    text-align: left;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 0;
    border-bottom: none;
  }

  .side-logo { width: 52px; height: 52px; }
  .side-name { margin-top: 0; font-size: 15px; }
  .side-nav { padding: 0; flex: 1; min-width: 180px; }
  .side-label { display: none; }
  .side-footer { display: none; }

  .side-menu {
    flex-direction: row;
    flex-wrap: wrap;
    margin-bottom: 0;
  }
  .side-menu a {
    border-left: none;
    border-bottom: 2px solid transparent;
    padding: 6px 8px;
    font-size: 13px;
  }
  .side-menu a.active { border-bottom-color: #ffffff; }

  main { padding: 16px 12px 30px; }
  .period { grid-template-columns: 80px minmax(0, 1fr); gap: 10px; }
}

/* ---- занятость аудиторий по дню ---- */
.rooms-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.rooms-controls select {
  font-size: 15px;
  padding: 6px 10px;
  border: 1px solid var(--border-2);
  background: var(--surface);
  color: var(--text);
}

.rooms-scroll { overflow-x: auto; }

.rooms-table {
  border-collapse: collapse;
  width: 100%;
  min-width: 640px;
  table-layout: fixed;
  background: var(--surface);
  font-size: 13px;
}

.rooms-table th:first-child,
.rooms-table td:first-child { width: 170px; }

.rooms-table th,
.rooms-table td {
  border: 1px solid var(--border);
  padding: 6px 9px;
  text-align: left;
  vertical-align: top;
}

.rooms-table th {
  background: var(--surface-3);
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.r-name {
  font-weight: 700;
  width: 170px;
  overflow-wrap: anywhere;
}

.r-name-info { font-weight: 400; color: var(--muted); font-size: 12px; margin-top: 2px; line-height: 1.35; }

.r-cell { min-width: 90px; }

.r-cell.r-free {
  background: var(--surface);
  color: var(--muted-2);
  text-align: center;
}

.r-cell.r-busy { background: var(--badge-ch-bg); }

.r-subj { font-weight: 600; color: var(--text); line-height: 1.3; }

/* ---- аудитории: список карточками (мобильная версия) ---- */
.rooms-list { display: flex; flex-direction: column; }

.room-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 14px;
  margin-bottom: 12px;
  min-width: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.room-title { line-height: 1.3; }

.room-info {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.room-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--border);
  align-items: center;
}

.room-row-num { font-weight: 700; color: var(--text); }

.room-row-body { min-width: 0; }

.room-lesson {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 6px;
}

.room-lesson:last-child { margin-bottom: 0; }



.lesson-note {
  color: var(--accent-red-bright);
  font-size: 12px;
  font-weight: 600;
  margin-top: 4px;
  white-space: pre-line;
}