:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;

  --bek-color: #2563eb;
  --bek-bg: #eff6ff;
  --bi-color: #9333ea;
  --bi-bg: #faf5ff;
  --family-color: #059669;
  --family-bg: #ecfdf5;
  --warn-color: #d97706;
  --warn-bg: #fffbeb;
  --danger-color: #dc2626;
  --danger-bg: #fef2f2;

  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  padding: 2rem 1rem 4rem;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.app-header h1 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.header-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.9rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.btn-outline {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  background: #f1f5f9;
}

.btn-secondary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary:hover {
  background: var(--primary-hover);
}

.btn-link {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  margin-left: auto;
}

/* Status Banner */
.status-banner {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-loading .status-dot {
  background: var(--warn-color);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.2);
}

.status-ok .status-dot {
  background: var(--family-color);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.2);
}

.status-error .status-dot {
  background: var(--danger-color);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.hidden {
  display: none !important;
}

/* Source Drawer */
.source-drawer h2 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.help-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.source-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.form-label {
  display: block;
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.inline-input-group {
  display: flex;
  gap: 0.5rem;
}

.inline-input-group input {
  flex: 1;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.875rem;
}

/* Controls & Date Pickers */
.controls-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.date-pickers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.field-group input[type="date"] {
  padding: 0.65rem 0.75rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: var(--bg);
}

.field-group input[type="date"]:focus {
  outline: 2px solid var(--primary);
  border-color: transparent;
}

.presets {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.presets-label {
  font-size: 0.825rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-right: 0.25rem;
}

.chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip:hover,
.chip.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.alert {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

.alert-error {
  background: var(--danger-bg);
  color: var(--danger-color);
  border: 1px solid #fecaca;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-top: 4px solid var(--border);
}

.stat-total {
  border-top-color: #475569;
}

.stat-bek {
  border-top-color: var(--bek-color);
}

.stat-bi {
  border-top-color: var(--bi-color);
}

.stat-family {
  border-top-color: var(--family-color);
}

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
}

.stat-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--text-muted);
}

.stat-bek .stat-badge {
  background: var(--bek-bg);
  color: var(--bek-color);
}

.stat-bi .stat-badge {
  background: var(--bi-bg);
  color: var(--bi-color);
}

.stat-family .stat-badge {
  background: var(--family-bg);
  color: var(--family-color);
}

.stat-value {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.stat-sub {
  font-size: 0.83rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.stat-weekday-detail {
  display: block;
  font-size: 0.78rem;
  margin-top: 0.1rem;
}

/* Exceptions & Tables */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
}

.section-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.count-pill {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  white-space: nowrap;
}

.count-pill-ok {
  background: var(--family-bg);
  color: var(--family-color);
}

.count-pill-warn {
  background: var(--warn-bg);
  color: var(--warn-color);
}

.empty-state {
  padding: 1rem;
  background: var(--family-bg);
  color: var(--family-color);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
}

.table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--bg);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Label Pills */
.label-pill {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem;
}

.label-bek {
  background: var(--bek-bg);
  color: var(--bek-color);
}

.label-bi {
  background: var(--bi-bg);
  color: var(--bi-color);
}

.label-family {
  background: var(--family-bg);
  color: var(--family-color);
}

.label-unassigned {
  background: var(--danger-bg);
  color: var(--danger-color);
}

.label-other {
  background: var(--warn-bg);
  color: var(--warn-color);
}

.weekend-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--bek-bg);
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
}

/* Details Accordion */
.details-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
}

.details-summary::-webkit-details-marker {
  display: none;
}

.details-meta {
  font-size: 0.825rem;
  color: var(--text-muted);
  font-weight: 500;
}

details[open] .details-summary {
  margin-bottom: 1rem;
}

code {
  background: #f1f5f9;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.85em;
}