/* Variables CSS pour les thèmes */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    /* Thème clair */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Thème sombre */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #475569;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.theme-toggle, .export-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.theme-toggle:hover, .export-btn:hover {
    background: var(--bg-tertiary);
    transform: translateY(-1px);
}

/* Filters */
.filters {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.filter-group select, .filter-group input {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    min-width: 150px;
}

.custom-dates {
    flex-direction: row;
    gap: 1rem;
}

/* Alerts */
.alerts {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 1rem;
}

.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

.alert.critical {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.alert.warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning-color);
    color: var(--warning-color);
}

.alert.info {
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid var(--info-color);
    color: var(--info-color);
}

/* KPIs */
.kpis {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.kpi-card {
    background: var(--bg-primary);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.kpi-card {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.kpi-content h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.kpi-trend {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.kpi-trend.positive {
    color: var(--success-color);
}

.kpi-trend.negative {
    color: var(--danger-color);
}

/* Charts */
.charts {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
}

.chart-container {
    background: var(--bg-primary);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    height: 400px;
    position: relative;
}

.chart-container canvas {
    max-height: 320px !important;
    width: 100% !important;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.chart-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-controls {
    display: flex;
    gap: 0.5rem;
}

.chart-type-btn {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.chart-type-btn.active,
.chart-type-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Balance Section */
.balance-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 2rem;
}

.balance-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.balance-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.balance-controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.balance-controls input,
.balance-controls select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.balance-table-container {
    background: var(--bg-primary);
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

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

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

.balance-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

.account-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
}

.account-link:hover {
    text-decoration: underline;
}

.amount {
    text-align: right;
    font-family: 'Monaco', 'Menlo', monospace;
    font-weight: 500;
}

.amount.positive {
    color: var(--success-color);
}

.amount.negative {
    color: var(--danger-color);
}

.action-btn {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: var(--bg-primary);
    margin: 5% auto;
    padding: 0;
    border-radius: 0.75rem;
    width: 90%;
    max-width: 800px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

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

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.close {
    color: var(--text-secondary);
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

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

.modal-body {
    padding: 1.5rem;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }

    .filters {
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
    }

    .kpis {
        padding: 0 1rem 1rem;
        grid-template-columns: 1fr;
    }

    .charts {
        padding: 0 1rem 1rem;
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 350px;
    }
    
    .chart-container canvas {
        max-height: 270px !important;
    }

    .balance-section {
        padding: 0 1rem 1rem;
    }

    .balance-header {
        flex-direction: column;
        align-items: stretch;
    }

    .balance-controls {
        flex-direction: column;
    }

    .balance-table-container {
        overflow-x: auto;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
}

/* Print styles */
@media print {
    .header-controls,
    .filters,
    .chart-controls,
    .balance-controls,
    .action-btn {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .kpi-card,
    .chart-container,
    .balance-table-container {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
}