:root {
  --bg-main: #f9fafb;
  --bg-card: #ffffff;
  --bg-elevated: #f8fafc;
  --color-primary: #3b82f6;
  --color-secondary: #64748b;
  --color-success: #22c55e;
  --color-danger: #ef4444;
  --color-warning: #f97316;
  --color-info: #0ea5e9;
  --color-light: #e2e8f0;
  --color-text: #0f172a;
  --color-text-muted: #64748b;
  --radius-md: 12px;
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.15);
  --transition-fast: 0.2s ease-out;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--font-main);
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  color: var(--color-text);
  min-height: 100vh;
}

/* Topbar */

.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 20px 32px;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.topbar h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--color-text);
}

.topbar-subtitle {
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 400;
}

.breadcrumb {
  font-size: 14px;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Dashboard tiles */

.dashboard {
  padding: 40px 32px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.tile {
  display: block;
  padding: 28px 24px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  text-decoration: none;
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.tile:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.tile::before {
  content: "";
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle at top left, rgba(59, 130, 246, 0.1), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease-out;
}

.tile:hover::before {
  opacity: 1;
}

.tile-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.tile-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.tile-subtitle {
  font-size: 15px;
  color: var(--color-text-muted);
}

.tile-primary {
  border-top: 4px solid var(--color-primary);
}

.tile-warning {
  border-top: 4px solid var(--color-warning);
}

.tile-info {
  border-top: 4px solid var(--color-info);
}

.tile-secondary {
  border-top: 4px solid var(--color-secondary);
}

/* Layout commun */

.container {
  padding: 32px 40px 60px;
  max-width: 1400px;
  margin: 0 auto;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.last-update {
  margin-left: auto;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Boutons */

.btn {
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: white;
  background: var(--color-light);
  transition: all var(--transition-fast);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
  letter-spacing: 0.025em;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
}

.btn:active {
  transform: translateY(0);
}

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

.btn-secondary {
  background: var(--color-secondary);
}

.btn-success {
  background: var(--color-success);
}

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

.btn-warning {
  background: var(--color-warning);
  color: #111827;
}

.btn-info {
  background: var(--color-info);
}

.btn-ghost {
  background: rgba(0, 0, 0, 0.08);
  color: var(--color-text);
  border: 1px solid rgba(0, 0, 0, 0.12);
}

/* Tableau */

.table-wrapper {
  margin-top: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

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

.data-table thead {
  background: #f8fafc;
}

.data-table th,
.data-table td {
  padding: 16px 20px;
  text-align: left;
}

.data-table th {
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 2px solid rgba(0, 0, 0, 0.08);
  letter-spacing: 0.025em;
}

.data-table tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.02);
}

.data-table tbody tr:hover {
  background: rgba(59, 130, 246, 0.08);
}

.data-table td.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Alertes */

.alerts {
  margin-bottom: 24px;
}

.alert {
  padding: 16px 20px;
  border-radius: 12px;
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.alert-critical {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--color-danger);
}

.alert-icon {
  font-size: 18px;
  margin-top: 2px;
}

/* Badges */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-status-en-cours {
  background: rgba(59, 130, 246, 0.15);
  color: var(--color-primary);
}

.badge-status-termine {
  background: rgba(22, 163, 74, 0.15);
  color: var(--color-success);
}

/* Statut text */

.status-en-cours {
  color: var(--color-primary);
}

.status-termine {
  color: var(--color-success);
}

/* Helpers */

.text-right {
  text-align: right;
}

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

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  background: rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.12);
}