@layer components {
  /* ==================== LAYOUT ==================== */
  .admin-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    min-height: 100vh;
  }

  /* ==================== SIDEBAR ==================== */
  .admin-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 240px;
    display: flex;
    flex-direction: column;
    background: #0f172a;
    color: #fff;
    overflow-y: auto;
  }

  .sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 64px;
    padding: 0 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.9375rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: #f8fafc;
    flex-shrink: 0;
  }

  .sidebar-brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 7px;
    background: #0ea5e9;
    flex-shrink: 0;
  }

  .sidebar-nav {
    flex: 1;
    padding: 16px 10px;
  }

  .sidebar-section {
    margin-bottom: 4px;
  }

  .sidebar-section-developer {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .sidebar-section-developer .nav-link {
    color: rgba(226, 232, 240, 0.68);
  }

  .sidebar-section-label {
    padding: 6px 12px 4px;
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #94a3b8;
  }

  .sidebar-footer {
    padding: 12px 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-link-danger {
    width: 100%;
    border: 0;
    background: transparent;
    color: #f87171;
    cursor: pointer;
    font-family: inherit;
  }

  /* ==================== MAIN ==================== */
  .admin-main {
    grid-column: 2;
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }

  .admin-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 64px;
    padding: 0 28px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
  }

  .page-title {
    font-size: 1.1875rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .header-user {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .header-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-muted);
    color: var(--primary-dark);
    font-size: 0.8125rem;
    font-weight: 800;
    flex-shrink: 0;
  }

  .header-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
  }

  .admin-content {
    flex: 1;
    padding: 24px 28px;
  }

  /* ==================== DASHBOARD ==================== */
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
  }

  .stat-card {
    position: relative;
    padding: 22px 22px 22px 26px;
    overflow: hidden;
  }

  .stat-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary);
    border-radius: 0 0 0 0;
  }

  .stat-card:nth-child(2)::before {
    background: var(--success);
  }

  .stat-card:nth-child(3)::before {
    background: var(--warning);
  }

  .stat-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
  }

  .stat-value {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
  }

  .quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .quick-action-card {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    min-height: 86px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    color: var(--text);
    transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
  }

  .quick-action-card:hover,
  .quick-action-card:focus-visible {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
  }

  .quick-action-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: var(--primary-muted);
    color: var(--primary-dark);
  }

  .quick-action-icon svg {
    width: 20px;
    height: 20px;
  }

  .quick-action-card strong {
    display: block;
    font-size: 0.9375rem;
    line-height: 1.35;
  }

  .quick-action-card small {
    display: block;
    margin-top: 3px;
    color: var(--text-muted);
    font-size: 0.8125rem;
    line-height: 1.35;
  }

  /* ==================== FILTER BAR ==================== */
  .filter-card {
    padding: 14px 18px;
    margin-bottom: 16px;
  }

  .quick-filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
  }

  .quick-filter-chip {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 700;
    transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
  }

  .quick-filter-chip:hover,
  .quick-filter-chip:focus-visible,
  .quick-filter-chip.active {
    border-color: var(--primary);
    background: var(--primary-muted);
    color: var(--primary-dark);
  }

  .filter-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    align-items: end;
    gap: 12px;
  }

  .filter-form .form-group {
    margin-bottom: 0;
  }

  .active-filter-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
  }

  .active-filter-label {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
  }

  .filter-chip {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--primary-muted);
    color: var(--primary-dark);
    font-size: 0.8125rem;
    font-weight: 700;
  }

  .filter-reset-link {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    color: var(--danger);
    font-size: 0.8125rem;
    font-weight: 700;
  }

  .primary-row-link {
    color: var(--primary-dark);
    font-weight: 800;
    text-decoration: none;
  }

  .primary-row-link:hover,
  .primary-row-link:focus-visible {
    text-decoration: underline;
    text-underline-offset: 3px;
  }

  .row-muted {
    opacity: 0.62;
  }

  .row-current {
    background: #f0f9ff;
  }

  .inline-schedule {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    color: var(--text-muted);
    font-size: 0.875rem;
  }

  .mobile-card-list {
    display: none;
  }

  .mobile-record-card {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
  }

  .mobile-record-card:last-child {
    border-bottom: 0;
  }

  .mobile-record-card.is-muted {
    opacity: 0.66;
  }

  .mobile-record-card.is-current {
    background: #f0f9ff;
  }

  .mobile-record-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
  }

  .mobile-record-title {
    color: var(--text);
    font-size: 0.9375rem;
    font-weight: 700;
    line-height: 1.4;
  }

  .mobile-record-title.muted {
    color: var(--text-muted);
    font-weight: 600;
  }

  .mobile-record-meta {
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.8125rem;
    line-height: 1.45;
  }

  .mobile-record-action,
  .mobile-record-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
  }

  /* ==================== LOGIN ==================== */
  .login-page {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 24px;
    background: #0b1120;
    background-image:
      radial-gradient(ellipse at 50% 0%, rgba(14, 165, 233, 0.1) 0%, transparent 55%),
      radial-gradient(ellipse at 100% 100%, rgba(99, 102, 241, 0.06) 0%, transparent 50%);
  }

  .login-card {
    width: min(100%, 400px);
    border-radius: var(--radius-lg) !important;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.04) !important;
    overflow: hidden !important;
  }

  .login-header {
    padding: 28px 28px 22px;
    text-align: center;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
  }

  .login-brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--primary);
    margin: 0 auto 14px;
  }

  .login-title {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
  }

  .login-subtitle {
    margin-top: 4px;
    font-size: 0.875rem;
    color: var(--text-muted);
  }

  .login-body {
    padding: 24px 28px 28px;
  }

  .login-submit {
    width: 100%;
    height: 44px;
    font-size: 0.9375rem;
    font-weight: 700;
    margin-top: 4px;
  }

  /* ==================== ROOM DETAIL ==================== */
  .detail-card-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 16px;
    margin-bottom: 20px;
  }

  .kiosk-url-box {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #f8fafc;
  }

  .kiosk-url-box code {
    flex: 1;
    min-width: 0;
    color: var(--text);
    font-size: 0.8125rem;
    word-break: break-all;
  }

  .detail-summary-list {
    display: grid;
    gap: 10px;
    margin-top: 14px;
  }

  .detail-summary-list > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.875rem;
  }

  .detail-summary-list strong {
    color: var(--text);
  }

  .text-success {
    color: var(--success-text) !important;
  }

  .text-warning {
    color: var(--warning-text) !important;
  }

  .text-muted {
    color: var(--text-muted) !important;
  }

  .token-toolbar {
    align-items: end;
    margin-bottom: 12px;
  }

  .toolbar-description {
    margin-top: 3px;
    color: var(--text-muted);
    font-size: 0.8125rem;
  }

  .admin-form-card {
    max-width: 720px;
  }

  .reservation-form-layout {
    display: grid;
    grid-template-columns: minmax(0, 720px) minmax(280px, 1fr);
    gap: 16px;
    align-items: start;
  }

  .reservation-side-panel {
    min-width: 0;
  }

  .form-grid-2,
  .form-grid-3 {
    display: grid;
    gap: 12px;
  }

  .form-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .room-schedule-card {
    margin-bottom: 20px;
  }

  .schedule-list {
    display: grid;
    gap: 10px;
  }

  .compact-list {
    gap: 6px;
  }

  .schedule-item {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
  }

  .schedule-item:last-child {
    border-bottom: 0;
  }

  .schedule-item time {
    color: var(--primary-dark);
    font-size: 0.8125rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
  }

  .schedule-item strong {
    display: block;
    line-height: 1.35;
  }

  .schedule-item span {
    display: block;
    margin-top: 3px;
    color: var(--text-muted);
    font-size: 0.8125rem;
  }

  .empty-state.compact {
    padding: 16px;
  }

  /* ==================== LOGS ==================== */
  .log-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    margin-bottom: 16px;
  }

  .log-meta-label {
    margin-bottom: 6px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
  }

  .log-path {
    color: var(--text);
    font-size: 0.8125rem;
    word-break: break-all;
  }

  .log-hint {
    margin-top: 6px;
    color: var(--text-muted);
    font-size: 0.75rem;
  }

  .log-lines-form {
    display: flex;
    align-items: end;
    gap: 8px;
    flex-shrink: 0;
  }

  .log-lines-form .form-label {
    margin-bottom: 0;
    white-space: nowrap;
  }

  .log-lines-form .form-control {
    min-width: 96px;
  }

  .log-card {
    padding: 0;
    overflow: hidden;
  }

  .log-viewer {
    max-height: calc(100vh - 220px);
    min-height: 420px;
    margin: 0;
    padding: 16px;
    overflow: auto;
    background: #0f172a;
    color: #d1e7ff;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 0.8125rem;
    line-height: 1.55;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }

  .empty-state {
    padding: 32px;
    color: var(--text-muted);
    text-align: center;
  }

  /* ==================== RESPONSIVE ==================== */
  @media (max-width: 840px) {
    .admin-layout {
      grid-template-columns: 1fr;
    }

    .admin-sidebar {
      position: static;
      width: auto;
      flex-direction: row;
      flex-wrap: wrap;
      height: auto;
    }

    .sidebar-brand {
      height: 52px;
      flex: 1;
      border-bottom: none;
    }

    .sidebar-nav {
      width: 100%;
      padding: 6px 10px 8px;
    }

    .sidebar-section-label {
      display: none;
    }

    .nav {
      flex-direction: row;
      flex-wrap: wrap;
      gap: 2px;
    }

    .nav-link {
      height: 36px;
      padding: 0 10px;
      font-size: 0.875rem;
    }

    .admin-main {
      grid-column: 1;
    }

    .admin-header {
      height: auto;
      min-height: 56px;
      padding: 10px 16px;
    }

    .admin-content {
      padding: 16px;
    }

    .stats-grid {
      grid-template-columns: 1fr;
      gap: 10px;
    }

    .quick-actions-grid {
      grid-template-columns: 1fr;
    }

    .detail-card-grid {
      grid-template-columns: 1fr;
    }

    .reservation-form-layout {
      grid-template-columns: 1fr;
    }

    .form-grid-2,
    .form-grid-3,
    .schedule-item {
      grid-template-columns: 1fr;
    }

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

    .log-toolbar,
    .log-lines-form {
      align-items: stretch;
      flex-direction: column;
    }

    .log-viewer {
      max-height: none;
      min-height: 320px;
    }

    .desktop-data-table {
      display: none;
    }

    .table-wrap {
      overflow: hidden;
    }

    .mobile-card-list {
      display: block;
    }

    .kiosk-url-box,
    .token-toolbar {
      align-items: stretch;
      flex-direction: column;
    }
  }
}

/* ── Detail grid (room detail page) ── */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.5rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--border-color);
  align-items: baseline;
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-row dt {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.detail-row dd {
  margin: 0;
  font-size: 0.9375rem;
}

/* ── 인라인 style 대체 유틸리티 (CSP style-src가 인라인 속성을 차단) ── */
.text-soft { color: var(--text-soft); }
.cell-muted { color: var(--text-muted); }
.cell-muted-sm { color: var(--text-muted); font-size: 0.875rem; }
.cell-time { font-variant-numeric: tabular-nums; font-size: 0.875rem; white-space: nowrap; }
.form-group-end { align-self: end; }
.btn-block { width: 100%; }
.form-narrow { max-width: 560px; }
.actions-gap-top { margin-top: 8px; }
.u-flex-gap { display: flex; gap: 0.5rem; }
.u-mt-12 { margin-top: 12px; }
.u-mb-1 { margin-bottom: 1rem; }
.u-nowrap { white-space: nowrap; }
.card-subtitle { margin: 0; font-size: 1rem; font-weight: 700; }
.token-meta { margin-bottom: 0.5rem; font-size: 0.8125rem; color: var(--text-muted); }
.token-row { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 1.25rem; }
.token-code {
  flex: 1;
  padding: 0.625rem 0.75rem;
  background: var(--bg-subtle, #f4f5f7);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.8125rem;
  word-break: break-all;
  user-select: all;
}
.token-hint { font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 1.25rem; }