/* ═══════════════════════════════════════════════════════
   HMD Admin — Style basé sur alexisandcom.fr
   Space Grotesk (titres) + Inter (corps)
   Palette : #f4f4f4 bg · #111 text · #e63946 accent
   ═══════════════════════════════════════════════════════ */

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

:root {
  --accent: #e63946;
  --accent-hover: #d62828;
  --bg: #f4f4f4;
  --text: #111;
  --muted: #666;
  --border: #d4d4d4;
  --surface: #fff;
  --danger: #e63946;
  --danger-hover: #d62828;
  --radius: 0px;
}

html {
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ═══════ TYPOGRAPHY ═══════ */

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 2.4rem;
  letter-spacing: -0.03em;
}

.brand.small {
  font-size: 1.4rem;
}

.accent {
  color: var(--accent);
}

.kicker {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

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

/* ═══════ BUTTONS ═══════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 12px 24px;
  border: 1px solid var(--text);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: var(--radius);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

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

.btn.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn.outline {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}

.btn.outline:hover:not(:disabled) {
  border-color: var(--text);
  color: var(--text);
}

.btn.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.btn.danger:hover:not(:disabled) {
  background: var(--danger-hover);
  border-color: var(--danger-hover);
}

.btn.small {
  padding: 6px 14px;
  font-size: 0.7rem;
}

.btn-loader {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn-loader[hidden] {
  display: none !important;
}

/* ═══════ FORM ═══════ */

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius);
  transition: border-color 0.2s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--text);
}

.form-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.error-message {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 10px 14px;
  font-size: 0.85rem;
  margin-bottom: 16px;
  border-radius: var(--radius);
}

/* ═══════ LOGIN VIEW ═══════ */

#login-view {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-container {
  width: 100%;
  max-width: 380px;
}

.login-header {
  text-align: center;
  margin-bottom: 48px;
}

.login-logo {
  max-width: 280px;
  height: auto;
  margin-bottom: 8px;
}

.login-header .kicker {
  margin-top: 8px;
}

.login-form .btn {
  width: 100%;
  margin-top: 8px;
}

.login-footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  font-style: italic;
  margin-top: 48px;
}

/* ═══════ TOPBAR ═══════ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 244, 244, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1400px;
  margin: 0 auto;
  padding: 12px 40px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-icon {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.topbar-left .kicker {
  margin-bottom: 0;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.admin-email {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ═══════ MAIN CONTENT ═══════ */

.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 48px 40px 80px;
}

/* ═══════ STATS ═══════ */

.stats-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.stat-card {
  background: var(--surface);
  padding: 32px;
}

.stat-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

/* ═══════ SEPARATOR ═══════ */

.separator {
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}

/* ═══════ USERS SECTION ═══════ */

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 2rem;
  margin-top: 4px;
}

.section-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ═══════ TOGGLE ═══════ */

.toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.toggle-label input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--border);
  border-radius: 10px;
  transition: background 0.2s ease;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--surface);
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.toggle-label input:checked + .toggle-switch {
  background: var(--accent);
}

.toggle-label input:checked + .toggle-switch::after {
  transform: translateX(16px);
}

.toggle-text {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ═══════ DELETED ROW ═══════ */

.row-deleted {
  opacity: 0.5;
}

.user-deleted {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--danger);
  margin-left: 6px;
  border: 1px solid var(--danger);
  padding: 1px 5px;
}

/* ═══════ TABLE ═══════ */

.users-table-container {
  border: 1px solid var(--border);
  background: var(--surface);
  overflow-x: auto;
}

.users-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.users-table thead th {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.users-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s ease;
}

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

.users-table tbody tr:hover {
  background: rgba(0, 0, 0, 0.02);
}

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

.user-name {
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
}

.user-owner {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-left: 6px;
}

.device-count {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.device-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  display: inline-block;
}

.device-dot.inactive {
  background: var(--border);
}

.table-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  border-color: var(--text);
  color: var(--text);
}

.btn-icon.danger:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* ═══════ EMPTY / LOADING ═══════ */

.empty-state,
.loading-state {
  padding: 48px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.empty-state[hidden],
.loading-state[hidden] {
  display: none !important;
}

.loader {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--text);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ═══════ MODAL ═══════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal {
  background: var(--surface);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.modal.modal-small {
  max-width: 420px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-size: 1.1rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--muted);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text);
}

.modal form,
.modal .delete-warning,
.modal .delete-user-info,
.modal .modal-actions,
#detail-content {
  padding: 0 24px;
}

.modal form {
  padding-top: 20px;
  padding-bottom: 24px;
}

#detail-content {
  padding-top: 20px;
  padding-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  padding-bottom: 24px;
}

.delete-warning {
  padding-top: 20px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--muted);
}

.delete-warning strong {
  color: var(--danger);
}

.delete-user-info {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding-top: 12px;
  padding-bottom: 20px;
}

/* ═══════ DETAIL MODAL ═══════ */

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.detail-value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
}

.detail-devices {
  margin-top: 8px;
}

.device-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
}

.device-item:last-child {
  border-bottom: none;
}

.badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid;
}

.badge.active {
  border-color: #22c55e;
  color: #16a34a;
}

.badge.inactive {
  border-color: var(--border);
  color: var(--muted);
}

/* ═══════ VIEW UTILITY ═══════ */

.view[hidden],
.modal-overlay[hidden] {
  display: none !important;
}

.detail-actions {
  display: flex;
  justify-content: flex-end;
  padding-bottom: 4px;
}

/* ═══════ RESPONSIVE ═══════ */

@media (max-width: 768px) {
  .topbar-inner {
    padding: 12px 20px;
  }

  .main-content {
    padding: 24px 20px 60px;
  }

  .stats-section {
    grid-template-columns: 1fr;
  }

  .stat-card {
    padding: 20px;
  }

  .stat-value {
    font-size: 1.8rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .section-header .btn {
    width: 100%;
  }

  .users-table {
    font-size: 0.8rem;
  }

  .users-table th,
  .users-table td {
    padding: 10px 12px;
  }

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

  .detail-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .admin-email {
    display: none;
  }
}