/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #f5f7fa;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* Common Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Common Components */
.card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: #4FC0AA;
    color: white;
}

.btn-primary:hover {
    background: #3DA192;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 192, 170, 0.2);
}

.btn-secondary {
    background: #f1f5f9;
    color: #475569;
}

.btn-secondary:hover {
    background: #e2e8f0;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    color: #2c3e50;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4FC0AA;
    box-shadow: 0 0 0 3px rgba(79, 192, 170, 0.1);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.table th {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    text-align: left;
    padding: 1rem;
    background: #f8fafc;
    border-bottom: 2px solid #e2e8f0;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid #e2e8f0;
}

.table tr:hover {
    background: #f8fafc;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: #c6f6d5;
    color: #276749;
    border: 1px solid #9ae6b4;
}

.alert-error {
    background-color: #fed7d7;
    color: #c53030;
    border: 1px solid #feb2b2;
}

/* Dashboard Specific Styles */
.dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.header {
    background: linear-gradient(135deg, #4FC0AA, #2C3E50);
    color: white;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header h1 {
    color: white;
    margin-bottom: 1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.stat-value {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-container {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    height: 400px;
    position: relative;
}

.chart-container canvas {
    max-height: 350px !important;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    margin: 2rem auto;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #718096;
    transition: color 0.2s ease;
}

.close-modal:hover {
    color: #2C3E50;
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }

/* Responsive Design */
@media (max-width: 768px) {
    .container, .dashboard {
        padding: 1rem;
    }
    
    .card, .stat-card {
        padding: 1rem;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 300px;
    }
    
    .table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .modal-content {
        margin: 1rem;
        width: calc(100% - 2rem);
    }
    
    .welcome-banner h1 {
        font-size: 2rem;
    }
    
    .admin-buttons {
        flex-direction: column;
    }
    
    .admin-btn {
        width: 100%;
        text-align: center;
    }
}