:root {
    --primary-color: #003d82;
    --secondary-color: #0066cc;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --bg-light: #f5f5f5;
    --border-color: #ddd;
    --success-color: #28a745;
}

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

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #fff;
}

.text-primary {
    color: var(--primary-color) !important;
}

.text-dark {
    color: var(--text-dark) !important;
}

.text-secondary {
    color: var(--text-light) !important;
}

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

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

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

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.bg-light {
    background-color: var(--bg-light) !important;
}

.bg-dark {
    background-color: #1a1a1a !important;
}

.border-primary {
    border-color: var(--primary-color) !important;
}

.border-left {
    border-left: 4px solid var(--primary-color) !important;
}

.navbar-light .navbar-brand {
    color: var(--primary-color) !important;
}

.navbar-light .navbar-nav .nav-link {
    color: var(--text-dark) !important;
    transition: color 0.3s;
}

.navbar-light .navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

.card {
    border: 2px solid transparent;
    transition: all 0.3s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.card.border-primary {
    border-color: var(--primary-color) !important;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 61, 130, 0.1);
}

.form-control {
    border-color: var(--border-color);
    color: var(--text-dark);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 61, 130, 0.25);
}

.form-check-input {
    border-color: var(--border-color);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.alert-info {
    background-color: #e7f3ff;
    border-color: var(--primary-color);
    color: var(--text-dark);
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffc107;
    color: #856404;
}

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

.brand-logo {
    font-weight: 700;
    font-size: 24px;
}

header {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

footer {
    margin-top: auto;
}

.product-card {
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 61, 130, 0.15);
}

.category-box {
    transition: all 0.3s;
}

.category-box:hover {
    box-shadow: 0 4px 12px rgba(0, 61, 130, 0.1);
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }
    
    h1 {
        font-size: 28px !important;
    }
    
    h2 {
        font-size: 22px !important;
    }
    
    .btn-lg {
        padding: 10px 20px;
        font-size: 16px;
    }
    
    .container {
        padding: 0 15px;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 24px !important;
    }
    
    h2 {
        font-size: 20px !important;
    }
    
    .navbar-brand {
        font-size: 20px;
    }
    
    .card {
        margin-bottom: 15px;
    }
}