:root {
  --bg: #0f172a;
  --bg-hero: #091026;
  --bg-soft: #111f3a;
  --panel: #1e293b;
  --panel-soft: #0d1a34;
  --panel-border: #334155;
  --line: #263750;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-strong: #1d4ed8;
  --accent-soft: #1e3a8a;
  --danger: #fca5a5;
  --chip: #1f2f47;
}

:root[data-theme="light"] {
  --bg: #f2f6fb;
  --bg-hero: #f6f9ff;
  --bg-soft: #e9f1fb;
  --panel: #ffffff;
  --panel-soft: #f7faff;
  --panel-border: #c9d8ee;
  --line: #d5e1f2;
  --text: #0f172a;
  --muted: #5a6c84;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: #dbeafe;
  --danger: #b91c1c;
  --chip: #eef4ff;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 78%, #000 22%) 0%, var(--bg) 35%);
  color: var(--text);
  font-family: "DejaVu Sans", "Noto Sans", "Segoe UI", Arial, sans-serif;
}

.app-shell {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: 10px 8px 24px;
}

.hidden {
  display: none !important;
}

.hero {
  background: var(--bg-hero);
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent 30%);
  border-radius: 14px;
  padding: 10px 12px;
}

.hero-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.hero-top {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero-group {
  font-weight: 700;
  font-size: 24px;
  margin-top: 4px;
}

.ghost-btn {
  border: 1px solid color-mix(in srgb, var(--panel-border) 80%, var(--accent) 20%);
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg-soft) 65%, transparent 35%);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 10px;
  cursor: pointer;
  white-space: nowrap;
}

.main-tabs {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.tab-btn,
.subtab-btn,
.time-chip,
button,
input,
select {
  border: 1px solid color-mix(in srgb, var(--panel-border) 75%, var(--accent) 25%);
  border-radius: 9px;
  background: color-mix(in srgb, var(--bg-soft) 74%, transparent 26%);
  color: var(--text);
  font-size: 13px;
  padding: 7px 10px;
  outline: none;
  box-shadow: none;
  -webkit-appearance: none;
  appearance: none;
}

.tab-btn,
.subtab-btn,
.time-chip,
button {
  cursor: pointer;
}

.tab-btn.active,
.subtab-btn.active,
.time-chip.active {
  border-color: color-mix(in srgb, var(--accent) 80%, white 20%);
  background: color-mix(in srgb, var(--accent-soft) 45%, var(--bg-soft) 55%);
  color: color-mix(in srgb, var(--accent) 78%, var(--text) 22%);
}

.tab-btn:hover,
.subtab-btn:hover,
.time-chip:hover,
button:hover,
.ghost-btn:hover {
  filter: brightness(1.05);
}

button:focus,
button:focus-visible,
button:active,
input:focus,
input:focus-visible,
input:active,
select:focus,
select:focus-visible,
select:active,
.tab-btn:focus,
.tab-btn:focus-visible,
.subtab-btn:focus,
.subtab-btn:focus-visible,
.time-chip:focus,
.time-chip:focus-visible {
  outline: none;
  box-shadow: none;
}

button::-moz-focus-inner {
  border: 0;
}

.controls {
  margin-top: 8px;
  background: var(--bg-soft);
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent 30%);
  border-radius: 10px;
  padding: 8px 9px;
}

.controls label {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 4px;
}

.controls-row {
  display: flex;
  gap: 6px;
  align-items: center;
}

select {
  flex: 1;
  min-width: 140px;
}

#reloadBtn {
  min-width: 94px;
  font-weight: 600;
}

.status {
  margin-top: 6px;
  min-height: 18px;
  color: var(--muted);
  font-size: 12px;
}

.status:empty {
  display: none;
}

.status.error {
  color: var(--danger);
}

.view-panel {
  margin-top: 2px;
}

#cabinetsView {
  margin-top: 8px;
}

.day-block {
  margin-top: 4px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 85%, transparent 15%);
  border-radius: 10px;
  background: var(--panel-soft);
  padding: 7px 7px 8px;
}

.day-title {
  display: flex;
  align-items: center;
  gap: 6px;
  color: color-mix(in srgb, var(--accent) 76%, var(--text) 24%);
  font-weight: 700;
  font-size: 15px;
}

.start-chip {
  margin: 8px auto 6px;
  max-width: max-content;
  border: 1px solid color-mix(in srgb, var(--panel-border) 65%, transparent 35%);
  border-radius: 999px;
  background: var(--chip);
  color: var(--muted);
  font-size: 12px;
  padding: 4px 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.slot-grid {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 13px;
  margin-top: 7px;
  align-items: stretch;
}

.timeline {
  position: relative;
  padding-right: 18px;
  text-align: right;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  --track-x: 7px;
  --dot-size: 10px;
  --dot-center: 6px;
}

.timeline::before {
  content: "";
  position: absolute;
  right: var(--track-x);
  top: var(--dot-center);
  bottom: var(--dot-center);
  width: 2px;
  background: color-mix(in srgb, var(--panel-border) 86%, transparent 14%);
  border-radius: 2px;
  z-index: 0;
}

.timeline.no-end::before {
  bottom: 0;
}

.timeline-time {
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
}

.timeline-pair {
  color: color-mix(in srgb, var(--accent) 86%, var(--text) 14%);
  font-size: 12px;
  font-weight: 600;
  margin-top: 1px;
}

.timeline-end {
  color: var(--muted);
  margin-top: auto;
  padding-top: 6px;
  font-size: 14px;
  line-height: 1;
}

.timeline-dot {
  position: absolute;
  right: calc(var(--track-x) - (var(--dot-size) / 2) + 1px);
  width: var(--dot-size);
  height: var(--dot-size);
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--panel-soft);
  z-index: 1;
}

.timeline-dot.top {
  top: calc(var(--dot-center) - (var(--dot-size) / 2));
}

.timeline-dot.bottom {
  bottom: calc(var(--dot-center) - (var(--dot-size) / 2));
  border-color: color-mix(in srgb, var(--muted) 85%, transparent 15%);
}

.lessons {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 2px;
}

.lesson-card {
  border: 1px solid color-mix(in srgb, var(--panel-border) 86%, transparent 14%);
  border-radius: 9px;
  background: var(--panel);
  padding: 7px 9px;
}

.lesson-badge {
  color: color-mix(in srgb, var(--accent) 80%, var(--text) 20%);
  font-size: 11px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.row {
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.row + .row {
  margin-top: 3px;
}

.row.subject {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
}

.row.teacher,
.row.pin {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.2;
}

.icon {
  width: 14px;
  height: 14px;
  min-width: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-top: 1px;
}

.footer-tag {
  margin-top: 10px;
  padding-top: 7px;
  border-top: 1px solid color-mix(in srgb, var(--line) 90%, transparent 10%);
  color: var(--muted);
  font-size: 12px;
}

.empty-day,
.empty-box {
  margin-top: 8px;
  border: 1px dashed color-mix(in srgb, var(--panel-border) 70%, transparent 30%);
  border-radius: 9px;
  background: color-mix(in srgb, var(--panel) 70%, transparent 30%);
  color: var(--muted);
  font-size: 12px;
  padding: 10px 12px;
}

.cabinet-summary {
  margin-top: 3px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 6px;
}

.cabinet-filters {
  margin-top: 2px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent 30%);
  border-radius: 10px;
  background: var(--bg-soft);
  padding: 8px 9px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

#cabinetsView .cabinet-filters {
  margin-top: 0;
}

.cabinet-filters label {
  color: var(--muted);
  font-size: 12px;
}

.cabinet-filters input {
  width: 100%;
}

.summary-chip {
  border: 1px solid color-mix(in srgb, var(--panel-border) 82%, transparent 18%);
  border-radius: 9px;
  background: var(--panel);
  color: var(--muted);
  font-size: 12px;
  padding: 8px 9px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.summary-chip b {
  color: var(--text);
}

.cabinet-root {
  margin-top: 3px;
}

.cabinet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
}

.cab-card {
  border: 1px solid color-mix(in srgb, var(--panel-border) 85%, transparent 15%);
  border-radius: 10px;
  background: var(--panel);
  padding: 9px 10px;
}

.cab-card.occupied {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--panel-border) 45%);
}

.cab-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 17px;
  font-weight: 700;
}

.cab-badge {
  margin-top: 6px;
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 3px 8px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 78%, transparent 22%);
  color: var(--muted);
}

.cab-badge.busy {
  border-color: color-mix(in srgb, #ef4444 65%, var(--panel-border) 35%);
  color: color-mix(in srgb, #ef4444 72%, var(--text) 28%);
  background: color-mix(in srgb, #ef4444 14%, transparent 86%);
}

.cab-badge.free {
  border-color: color-mix(in srgb, #10b981 60%, var(--panel-border) 40%);
  color: color-mix(in srgb, #10b981 72%, var(--text) 28%);
  background: color-mix(in srgb, #10b981 14%, transparent 86%);
}

.cab-line {
  margin-top: 6px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.25;
}

.cab-line.muted {
  color: var(--muted);
}

@media (max-width: 700px) {
  .hero-group {
    font-size: 21px;
  }

  .slot-grid {
    grid-template-columns: 76px 1fr;
    gap: 9px;
  }

  .timeline {
    padding-right: 14px;
    --track-x: 6px;
  }

  .timeline::before {
    right: var(--track-x);
  }

  .timeline-dot {
    right: calc(var(--track-x) - (var(--dot-size) / 2) + 1px);
  }

  .timeline-time {
    font-size: 20px;
  }

  .timeline-pair {
    font-size: 11px;
  }

  .timeline-end {
    font-size: 12px;
    margin-top: 18px;
  }

  .row.subject {
    font-size: 14px;
  }

  .row.teacher,
  .row.pin {
    font-size: 12px;
  }

  .cabinet-grid {
    grid-template-columns: 1fr;
  }

  .cabinet-summary {
    grid-template-columns: 1fr;
  }
}