/* nallium-music-admin-frontend — design system
 *
 * Interface PROFESSIONNELLE (cahier des charges, section "Frontend admin")
 * — contrairement au frontend utilisateur (thème sombre par défaut), cet
 * espace reste clair par défaut, dans la lignée visuelle des consoles
 * d'administration existantes de la suite (nallium-idm-frontend/admin.js,
 * nallium-drive-frontend) : tokens identiques (--text/--muted/--blue/
 * --green/--amber/--violet/--red/--border/--radius), topbar plutôt que
 * barre latérale (un espace admin avec 7 écrans n'a pas besoin de la
 * densité d'une barre latérale façon lecteur multimédia).
 */

:root {
  --text: #172033;
  --muted: #64748b;
  --muted-2: #94a3b8;
  --blue: #3b82f6;
  --blue-dark: #2563eb;
  --green: #16a34a;
  --amber: #d97706;
  --violet: #7c3aed;
  --red: #dc2626;
  --cyan: #0891b2;
  --bg: #f5f6fb;
  --panel: #ffffff;
  --panel-solid: #ffffff;
  --panel-hover: #eef0f9;
  --border: rgba(23, 32, 51, 0.1);
  --shadow: 0 24px 80px rgba(30, 41, 59, 0.12);
  --shadow-soft: 0 14px 38px rgba(30, 41, 59, 0.09);
  --radius: 14px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}
html,
body {
  max-width: 100%;
  overflow-x: hidden;
}
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a {
  color: var(--blue);
  text-decoration: none;
}
button {
  font: inherit;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 9px 16px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  background: var(--panel-hover);
  color: var(--text);
}
.btn:hover {
  filter: brightness(0.97);
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-outline {
  background: transparent;
  border-color: var(--border);
}
.btn-danger {
  background: var(--red);
  color: #fff;
}
.btn-sm {
  padding: 5px 11px;
  font-size: 12px;
}

input,
select,
textarea {
  font: inherit;
  color: var(--text);
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 11px;
}
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}

.alert-banner {
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}
.alert-banner.error {
  background: rgba(220, 38, 38, 0.08);
  color: var(--red);
  border-color: rgba(220, 38, 38, 0.25);
}
.alert-banner.success {
  background: rgba(22, 163, 74, 0.08);
  color: var(--green);
  border-color: rgba(22, 163, 74, 0.25);
}
.alert-banner.info {
  background: rgba(59, 130, 246, 0.08);
  color: var(--blue-dark);
  border-color: rgba(59, 130, 246, 0.25);
}
.alert-banner.warning {
  background: rgba(217, 119, 6, 0.08);
  color: var(--amber);
  border-color: rgba(217, 119, 6, 0.25);
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 50px 20px;
  font-size: 13.5px;
}
.login-gate {
  text-align: center;
  padding: 80px 20px;
  color: var(--muted);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}
.badge-pill.available {
  background: rgba(22, 163, 74, 0.12);
  color: var(--green);
}
.badge-pill.degraded {
  background: rgba(217, 119, 6, 0.12);
  color: var(--amber);
}
.badge-pill.unavailable {
  background: rgba(220, 38, 38, 0.12);
  color: var(--red);
}
.badge-pill.pending {
  background: rgba(100, 116, 139, 0.12);
  color: var(--muted);
}
.badge-pill.quarantined {
  background: rgba(124, 58, 237, 0.12);
  color: var(--violet);
}
.badge-pill.critical {
  background: rgba(220, 38, 38, 0.12);
  color: var(--red);
}
.badge-pill.warning {
  background: rgba(217, 119, 6, 0.12);
  color: var(--amber);
}

/* ---------------------------------------------------------------------
 * Chrome (topbar).
 * ------------------------------------------------------------------- */
.admin-topbar {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 14px 26px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.admin-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
}
.admin-brand-logo {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, #7c3aed, #3b82f6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}
.admin-nav {
  display: flex;
  gap: 4px;
  flex: 1;
  flex-wrap: wrap;
}
.admin-nav a {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}
.admin-nav a:hover {
  background: var(--panel-hover);
  color: var(--text);
}
.admin-nav a.active {
  background: var(--panel-hover);
  color: var(--blue-dark);
}
.admin-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--muted);
}
.admin-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c3aed, #3b82f6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 12px;
}

.admin-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 24px 60px;
}
.admin-page-title {
  font-size: 21px;
  font-weight: 800;
  margin: 0 0 4px;
}
.admin-page-subtitle {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 20px;
}

/* ---------------------------------------------------------------------
 * Tableau de bord.
 * ------------------------------------------------------------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.stat-tile {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-soft);
}
.stat-tile .n {
  font-size: 26px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.stat-tile .l {
  font-size: 11.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-top: 2px;
}
.stat-tile.accent-green .n {
  color: var(--green);
}
.stat-tile.accent-amber .n {
  color: var(--amber);
}
.stat-tile.accent-red .n {
  color: var(--red);
}
.stat-tile.accent-blue .n {
  color: var(--blue-dark);
}
.stat-tile.accent-violet .n {
  color: var(--violet);
}

.capacity-bar-track {
  height: 8px;
  border-radius: 999px;
  background: var(--panel-hover);
  overflow: hidden;
  margin: 6px 0 4px;
}
.capacity-bar-fill {
  height: 100%;
  background: var(--blue);
}
.capacity-bar-fill.warn {
  background: var(--amber);
}
.capacity-bar-fill.danger {
  background: var(--red);
}

/* ---------------------------------------------------------------------
 * Tables de données.
 * ------------------------------------------------------------------- */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.admin-table th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-hover);
}
.admin-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
  vertical-align: middle;
}
.admin-table tr:last-child td {
  border-bottom: none;
}
.admin-table tr.js-row-clickable {
  cursor: pointer;
}
.admin-table tr.js-row-clickable:hover {
  background: var(--panel-hover);
}

.admin-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.admin-toolbar input[type="search"] {
  min-width: 220px;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}
.detail-field label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 3px;
}

.form-row {
  margin-bottom: 12px;
}
.form-row label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 5px;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
}

.modal-content {
  border: 1px solid var(--border);
}

.upload-drop {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--muted);
  margin-bottom: 16px;
}
.upload-drop.dragover {
  border-color: var(--blue);
  background: var(--panel-hover);
}

@media (max-width: 760px) {
  .admin-topbar {
    flex-wrap: wrap;
    padding: 12px 16px;
  }
  .admin-main {
    padding: 18px 14px 50px;
  }
  .detail-grid {
    grid-template-columns: 1fr;
  }
}