:root {
  --admin-bg: #f3f5f8;
  --admin-surface: #ffffff;
  --admin-text: #1f2937;
  --admin-muted: #6b7280;
  --admin-border: #d7dde6;
  --admin-soft: #eef2f7;
  --admin-primary: #265f9f;
  --admin-primary-dark: #1f4d7f;
}

body {
  background: var(--admin-bg);
  color: var(--admin-text);
}

.admin-navbar {
  box-shadow: 0 1px 0 rgba(31, 41, 55, 0.04);
}

.navbar-brand {
  color: var(--admin-text);
}

.admin-header {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 22px;
}

.btn-primary {
  --bs-btn-bg: var(--admin-primary);
  --bs-btn-border-color: var(--admin-primary);
  --bs-btn-hover-bg: var(--admin-primary-dark);
  --bs-btn-hover-border-color: var(--admin-primary-dark);
}

.btn-outline-primary {
  --bs-btn-color: var(--admin-primary);
  --bs-btn-border-color: var(--admin-primary);
  --bs-btn-hover-bg: var(--admin-primary);
  --bs-btn-hover-border-color: var(--admin-primary);
}

.archive-mode .admin-header {
  background: linear-gradient(180deg, #fffdf7 0%, #f8fafc 100%);
  border-color: #e2c879;
}

.archive-notice {
  align-items: center;
  background: #fff8e1;
  border: 1px solid #e2c879;
  border-radius: 8px;
  color: #5f4b12;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 16px;
}

.archive-notice span {
  color: #735c18;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-shell {
  width: min(100%, 420px);
}

.auth-panel {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 32px;
}

.filter-bar {
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(31, 41, 55, 0.04);
  overflow: hidden;
}

.filter-title {
  background: #fbfcfe;
}

.filter-body {
  border-top: 1px solid var(--admin-border);
  padding: 18px;
}

.collapse-trigger {
  align-items: center;
  background: transparent;
  border: 0;
  color: var(--admin-text);
  display: flex;
  gap: 12px;
  text-align: left;
  width: 100%;
}

.collapse-trigger:focus-visible {
  outline: 3px solid rgba(38, 95, 159, 0.2);
  outline-offset: -3px;
}

.filter-title .collapse-trigger {
  padding: 18px;
}

.collapse-icon {
  border: solid var(--admin-primary);
  border-width: 0 2px 2px 0;
  display: inline-block;
  flex: 0 0 auto;
  height: 9px;
  margin-left: 2px;
  transform: rotate(-45deg);
  transition: transform 0.18s ease;
  width: 9px;
}

.collapse-trigger[aria-expanded='true'] .collapse-icon {
  transform: rotate(45deg);
}

.collapse-title {
  display: block;
  font-size: 1rem;
  font-weight: 800;
}

.collapse-subtitle {
  color: var(--admin-muted);
  display: block;
  font-size: 0.86rem;
  margin-top: 2px;
}

.form-label {
  color: #4b5563;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.form-control,
.form-select {
  border-color: var(--admin-border);
  min-height: 42px;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 0.2rem rgba(38, 95, 159, 0.14);
}

.date-field-muted {
  opacity: 0.58;
}

.month-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.month-chip {
  align-items: center;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 999px;
  color: var(--admin-text);
  display: inline-flex;
  flex: 0 0 auto;
  gap: 8px;
  padding: 8px 12px;
  text-decoration: none;
}

.month-chip:hover {
  border-color: var(--admin-primary);
  color: var(--admin-primary);
}

.month-chip span {
  background: var(--admin-soft);
  border-radius: 999px;
  color: var(--admin-muted);
  font-size: 0.78rem;
  padding: 2px 8px;
}

.month-section {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(31, 41, 55, 0.04);
  margin-bottom: 22px;
  overflow: hidden;
  scroll-margin-top: 86px;
}

.month-heading {
  align-items: center;
  background: #fbfcfe;
  display: flex;
  justify-content: space-between;
  padding: 18px 20px;
}

.month-heading[aria-expanded='true'] {
  border-bottom: 1px solid var(--admin-border);
}

.month-heading-text {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.month-kicker {
  color: var(--admin-muted);
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: 3px;
  text-transform: uppercase;
}

.month-stats {
  align-items: center;
  background: var(--admin-soft);
  border-radius: 8px;
  display: flex;
  gap: 8px;
  padding: 8px 12px;
}

.month-stats strong {
  font-size: 1.1rem;
}

.month-stats span {
  color: var(--admin-muted);
  font-size: 0.82rem;
}

.admin-table {
  margin-bottom: 0;
}

.admin-table thead th {
  background: #f8fafc;
  border-bottom: 1px solid var(--admin-border);
  color: #4b5563;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 12px 16px;
  text-transform: uppercase;
  white-space: nowrap;
}

.admin-table tbody td {
  padding: 14px 16px;
  vertical-align: middle;
}

.event-row {
  cursor: pointer;
}

.event-row:hover {
  --bs-table-bg: #edf4fb;
}

.event-row-archived {
  color: #5f6673;
}

.event-row-archived:hover {
  --bs-table-bg: #fff8e1;
}

.readonly-label {
  background: #fff8e1;
  border: 1px solid #e2c879;
  border-radius: 999px;
  color: #735c18;
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  margin-left: 8px;
  padding: 3px 8px;
  white-space: nowrap;
}

.date-cell {
  align-items: center;
  background: #f8fafc;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  min-height: 52px;
  min-width: 52px;
}

.date-cell strong {
  font-size: 1.12rem;
  line-height: 1.1;
}

.date-cell span {
  color: var(--admin-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-badge {
  border-radius: 999px;
  font-weight: 700;
  min-width: 86px;
  padding: 7px 10px;
  text-transform: capitalize;
}

.empty-state {
  background: var(--admin-surface);
  border: 1px dashed var(--admin-border);
  border-radius: 8px;
  padding: 34px;
  text-align: center;
}

.skeleton-section {
  pointer-events: none;
}

.skeleton-table {
  padding: 8px 18px 18px;
}

.skeleton-row {
  align-items: center;
  border-bottom: 1px solid var(--admin-border);
  display: grid;
  gap: 16px;
  grid-template-columns: 64px 1fr 1fr 2fr 120px;
  padding: 14px 0;
}

.skeleton-row:last-child {
  border-bottom: 0;
}

.skeleton {
  animation: shimmer 1.2s ease-in-out infinite;
  background: linear-gradient(90deg, #edf1f6 0%, #f7f9fc 45%, #edf1f6 90%);
  background-size: 240% 100%;
  border-radius: 8px;
  display: block;
}

.skeleton-line {
  height: 14px;
  width: 100%;
}

.skeleton-short {
  height: 12px;
  margin-bottom: 8px;
  width: 64px;
}

.skeleton-title {
  height: 24px;
  width: 160px;
}

.skeleton-wide {
  width: 100%;
}

.skeleton-pill {
  border-radius: 999px;
  height: 32px;
  width: 96px;
}

.skeleton-icon {
  height: 18px;
  width: 18px;
}

.skeleton-box {
  height: 52px;
  width: 52px;
}

@keyframes shimmer {
  0% {
    background-position: 120% 0;
  }
  100% {
    background-position: -120% 0;
  }
}

@media (max-width: 991.98px) {
  .admin-header,
  .filter-body {
    padding: 16px;
  }

  .skeleton-row {
    grid-template-columns: 56px 1fr;
  }

  .skeleton-row .skeleton:nth-child(n + 4) {
    display: none;
  }
}

@media (max-width: 767.98px) {
  .month-heading {
    padding: 16px;
  }

  .month-stats {
    align-items: flex-end;
    flex-direction: column;
    gap: 0;
  }

  .collapse-trigger {
    gap: 10px;
  }

  .admin-table tbody td,
  .admin-table thead th {
    padding: 12px;
  }
}