/* ============================
   BCJ Admin Dashboard Styles
   ============================ */

:root {
  --admin-primary: #1e40af;
  --admin-primary-hover: #1e3a8a;
  --admin-sidebar-bg: #1e293b;
  --admin-sidebar-text: #cbd5e1;
  --admin-sidebar-active: #3b82f6;
  --admin-bg: #f1f5f9;
  --admin-card-bg: #ffffff;
  --admin-border: #e2e8f0;
  --admin-text: #1e293b;
  --admin-text-muted: #64748b;
  --admin-success: #16a34a;
  --admin-warning: #d97706;
  --admin-danger: #dc2626;
}

/* Reset & Base */
* { box-sizing: border-box; }

body.admin-body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--admin-bg);
  color: var(--admin-text);
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
  width: 240px;
  background: var(--admin-sidebar-bg);
  color: var(--admin-sidebar-text);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.admin-sidebar-brand {
  padding: 20px 16px;
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-sidebar-logo {
  display: block;
  height: 24px;
  width: auto;
  /* サイドバーは濃紺背景のため、青ロゴを白く反転させて視認性を確保する */
  filter: brightness(0) invert(1);
}

.admin-sidebar-brand small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--admin-sidebar-text);
  margin-top: 8px;
}

.admin-sidebar-nav {
  flex: 1;
  padding: 12px 0;
}

.admin-sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--admin-sidebar-text);
  text-decoration: none;
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
}

.admin-sidebar-nav a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.admin-sidebar-nav a.active {
  background: var(--admin-sidebar-active);
  color: #ffffff;
  font-weight: 600;
}

.admin-sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
}

.admin-sidebar-footer a {
  color: var(--admin-sidebar-text);
  text-decoration: none;
}

.admin-sidebar-footer a:hover {
  color: #ffffff;
}

/* Main content */
.admin-main {
  flex: 1;
  margin-left: 240px;
  min-height: 100vh;
}

.admin-header {
  background: var(--admin-card-bg);
  border-bottom: 1px solid var(--admin-border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.admin-content {
  padding: 24px;
}

/* Flash messages */
.admin-flash {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
}

.admin-flash-notice {
  background: #ecfdf5;
  color: var(--admin-success);
  border: 1px solid #bbf7d0;
}

.admin-flash-alert {
  background: #fef2f2;
  color: var(--admin-danger);
  border: 1px solid #fecaca;
}

/* Cards */
.admin-card {
  background: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.admin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.admin-card-header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

/* Stats grid (dashboard) */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.admin-stat-card {
  background: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}

.admin-stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--admin-primary);
}

.admin-stat-label {
  font-size: 13px;
  color: var(--admin-text-muted);
  margin-top: 4px;
}

/* Table */
.admin-table-wrapper {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.admin-table th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--admin-text-muted);
  border-bottom: 2px solid var(--admin-border);
  white-space: nowrap;
}

.admin-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--admin-border);
  vertical-align: middle;
}

.admin-table tbody tr:hover {
  background: #f8fafc;
}

/* Buttons */
.admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, box-shadow 0.15s;
}

.admin-btn-primary {
  background: var(--admin-primary);
  color: #ffffff;
}

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

.admin-btn-secondary {
  background: #ffffff;
  color: var(--admin-text);
  border: 1px solid var(--admin-border);
}

.admin-btn-secondary:hover {
  background: #f8fafc;
}

.admin-btn-sm {
  padding: 4px 10px;
  font-size: 13px;
}

.admin-btn-danger {
  background: var(--admin-danger);
  color: #ffffff;
}

.admin-btn-danger:hover {
  background: #b91c1c;
}

/* Badges / Status */
.admin-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}

.admin-badge-green {
  background: #dcfce7;
  color: #166534;
}

.admin-badge-yellow {
  background: #fef3c7;
  color: #92400e;
}

.admin-badge-gray {
  background: #f1f5f9;
  color: #475569;
}

.admin-badge-red {
  background: #fee2e2;
  color: #991b1b;
}

.admin-badge-blue {
  background: #dbeafe;
  color: #1e40af;
}

/* Forms */
.admin-form-group {
  margin-bottom: 16px;
}

.admin-form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--admin-text);
}

.admin-form-group .admin-hint {
  font-size: 12px;
  color: var(--admin-text-muted);
  margin-top: 2px;
}

.admin-form-input,
.admin-form-select,
.admin-form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--admin-border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--admin-text);
  background: #ffffff;
  transition: border-color 0.15s;
}

.admin-form-input:focus,
.admin-form-select:focus,
.admin-form-textarea:focus {
  outline: none;
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.admin-form-textarea {
  min-height: 100px;
  resize: vertical;
}

.admin-form-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-form-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
}

.admin-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.admin-form-actions {
  display: flex;
  gap: 8px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--admin-border);
}

/* Error messages */
.admin-errors {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 16px;
}

.admin-errors h3 {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--admin-danger);
}

.admin-errors ul {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  color: var(--admin-danger);
}

/* Filter bar (legacy) */
.admin-filter-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.admin-filter-bar select {
  padding: 6px 10px;
  border: 1px solid var(--admin-border);
  border-radius: 6px;
  font-size: 13px;
  background: #ffffff;
}

/* Filter form — Modern inline filters */
.admin-filter-form .admin-filter-row {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.admin-filter-form .admin-filter-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.admin-filter-form .admin-filter-group label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--admin-text-muted);
}

.admin-filter-form .admin-input {
  padding: 8px 12px;
  border: 1.5px solid var(--admin-border);
  border-radius: 8px;
  font-size: 13px;
  color: var(--admin-text);
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  min-width: 140px;
}

.admin-filter-form .admin-input:hover {
  border-color: #94a3b8;
}

.admin-filter-form .admin-input:focus {
  outline: none;
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.admin-filter-form .admin-input::placeholder {
  color: #94a3b8;
}

/* Pagination */
.admin-pagination {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  font-size: 14px;
}

.admin-pagination a,
.admin-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--admin-text);
}

.admin-pagination a:hover {
  background: #e2e8f0;
}

.admin-pagination .current {
  background: var(--admin-primary);
  color: #ffffff;
  font-weight: 600;
}

.admin-pagination .disabled {
  color: var(--admin-text-muted);
  opacity: 0.5;
}

/* Detail view (show) */
.admin-detail-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0;
  font-size: 14px;
}

.admin-detail-grid dt {
  padding: 8px 12px;
  font-weight: 600;
  color: var(--admin-text-muted);
  border-bottom: 1px solid var(--admin-border);
}

.admin-detail-grid dd {
  padding: 8px 12px;
  margin: 0;
  border-bottom: 1px solid var(--admin-border);
}

/* Hamburger (mobile only) */
.admin-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--admin-text);
  cursor: pointer;
  padding: 4px;
  margin-right: 4px;
  font-size: 24px;
  line-height: 1;
}

.admin-sidebar-overlay { display: none; }

/* Responsive */
@media (max-width: 768px) {
  .admin-sidebar {
    width: 260px;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  body.admin-nav-open .admin-sidebar {
    transform: translateX(0);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.35);
  }

  .admin-main {
    margin-left: 0;
  }

  .admin-header {
    position: sticky;
    top: 0;
    z-index: 80;
    padding: 12px 16px;
  }

  .admin-hamburger {
    display: inline-flex;
    align-items: center;
  }

  .admin-content {
    padding: 16px;
  }

  body.admin-nav-open .admin-sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
  }

  .admin-form-row {
    grid-template-columns: 1fr;
  }
}

/* Utility */
.admin-text-muted { color: var(--admin-text-muted); }
.admin-text-truncate {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.admin-mt-0 { margin-top: 0; }
.admin-mb-16 { margin-bottom: 16px; }