/* Custom Styles for Hazen Optical */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
}

.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/pattern.png');
    opacity: 0.1;
}

.product-card {
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-1px);
}

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

.sidebar {
    background: linear-gradient(180deg, #2c3e50, #34495e);
}

.sidebar .nav-link {
    color: #ecf0f1;
    padding: 12px 20px;
    margin: 2px 0;
    border-radius: 5px;
    transition: all 0.3s;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: rgba(255,255,255,0.1);
    color: var(--accent-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .sidebar {
        min-height: auto;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15) !important;
}

.category-card {
    transition: transform 0.3s ease;
    padding: 2rem 1rem;
}

.category-card:hover {
    transform: translateY(-3px);
}

.testimonial-card {
    background: #fff;
    border-radius: 15px;
}

.feature-icon {
    transition: transform 0.3s ease;
}

.feature-icon:hover {
    transform: scale(1.1);
}