/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700&display=swap');

/* Variables CSS */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --secondary: #8B5CF6;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --deep-navy: #151940;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --border: #E5E7EB;
    --shadow: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --secondary: #A78BFA;
    --success: #34D399;
    --danger: #F87171;
    --warning: #FBBF24;
    --deep-navy: #3B4578;
    --bg-primary: #1F2937;
    --bg-secondary: #111827;
    --bg-tertiary: #374151;
    --text-primary: #F9FAFB;
    --text-secondary: #D1D5DB;
    --border: #374151;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

/* Titres */
h1, h2, h3, h4, h5, h6,
.card-title,
.modal-title,
.nav-tab {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

/* Tous les gras en Deep Navy */
strong, b,
.font-weight-bold,
th,
.badge,
.stat-value {
    color: var(--deep-navy);
    font-weight: 600;
}

/* Container principal */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    padding-top: 170px; /* Espace pour header (73px) + nav-tabs (~97px) */
}

/* Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px var(--shadow);
}

.app-header h1 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--deep-navy);
    font-weight: 700;
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Navigation */
.nav-tabs {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px var(--shadow);
}

/* Navigation */
.nav-tabs {
    position: fixed;
    top: 70px; /* Juste sous le header */
    left: 0;
    right: 0;
    z-index: 999;
    display: flex;
    gap: 0.5rem;
    background: var(--bg-primary);
    padding: 0.5rem ;
    border-radius: 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.nav-tab {
    padding: 0.5rem 2.5rem;  /* ← Change 1.5rem en 2.5rem ou 3rem */
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.2s;
}

.nav-tab:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-tab.active {
    background: var(--primary);
    color: white;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px var(--shadow);
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Formulaires */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

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

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Boutons */
.btn {
    padding: 0.75rem 3rem;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px var(--shadow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #DC2626;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-icon {
    padding: 0.5rem;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Tableau */
.table-container {
    overflow-x: auto;
}

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

.table thead {
    background: var(--bg-tertiary);
}

.table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border);
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: #D1FAE5;
    color: #065F46;
}

.badge-warning {
    background: #FEF3C7;
    color: #92400E;
}

.badge-danger {
    background: #FEE2E2;
    color: #991B1B;
}

[data-theme="dark"] .badge-success {
    background: #065F46;
    color: #D1FAE5;
}

[data-theme="dark"] .badge-warning {
    background: #92400E;
    color: #FEF3C7;
}

[data-theme="dark"] .badge-danger {
    background: #991B1B;
    color: #FEE2E2;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 25px var(--shadow);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

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

.stat-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px var(--shadow);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
}

/* Toggle theme */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.theme-toggle:hover {
    background: var(--border);
}

/* Login page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-card h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--deep-navy);
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    font-weight: 700;
}

.login-alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.login-alert-error {
    background: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FCA5A5;
}

.login-alert-warning {
    background: #FEF3C7;
    color: #92400E;
    border: 1px solid #FDE68A;
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-tabs {
        flex-wrap: wrap;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: scroll;
    }
}

/* Utilitaires */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }