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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --light-bg: #f8fafc;
    --dark-text: #1e293b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-text);
    border-radius: 3px;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 0;
}

.hero h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: #64748b;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 3rem;
}

.stat-info h3 {
    font-size: 2rem;
    color: var(--primary-color);
}

.stat-info p {
    color: #64748b;
    font-size: 0.9rem;
}

/* Quick Actions */
.quick-actions {
    margin: 3rem 0;
}

.quick-actions h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--dark-text);
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.action-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--dark-text);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.action-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.action-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.action-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.action-card p {
    color: #64748b;
    font-size: 0.9rem;
}

/* Tables */
.recent-appointments {
    margin: 3rem 0;
}

.recent-appointments h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.table-responsive {
    overflow-x: auto;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead {
    background: var(--primary-color);
    color: white;
}

table th,
table td {
    padding: 1rem;
    text-align: left;
}

table tbody tr {
    border-bottom: 1px solid var(--border-color);
}

table tbody tr:hover {
    background-color: var(--light-bg);
}

/* Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

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

.badge-confirmé {
    background: #d1fae5;
    color: #065f46;
}

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

.badge-terminé {
    background: #e5e7eb;
    color: #374151;
}

/* Forms */
.form-container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-2px);
}

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

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

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

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

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-group {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* Action Buttons in Tables */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--primary-color);
}

/* Footer */
footer {
    background: white;
    margin-top: 4rem;
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 -1px 3px 0 rgba(0, 0, 0, 0.1);
}

/* Search Bar */
.search-bar {
    margin: 2rem 0;
}

.search-bar input {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 1rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

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

    .action-grid {
        grid-template-columns: 1fr;
    }

    table {
        font-size: 0.9rem;
    }

    table th,
    table td {
        padding: 0.5rem;
    }

    .btn-group {
        flex-direction: column;
    }

    .action-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .nav-brand h1 {
        font-size: 1.2rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .stat-icon {
        font-size: 2rem;
    }

    .stat-info h3 {
        font-size: 1.5rem;
    }
}

/* Tablet */
@media (min-width: 769px) and (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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