:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --dark-color: #1f2937;
    --light-color: #f3f4f6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    padding-top: 76px;
    color: var(--dark-color);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 100px 0;
    color: white;
    margin-bottom: 2rem;
}

/* Project Cards */
.project-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    border-radius: 12px;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.project-card img {
    height: 200px;
    object-fit: cover;
}

/* Category Cards */
.category-card {
    background: white;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    border-color: var(--primary-color);
}

/* Stat Cards */
.stat-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* Search Box */
.search-box {
    background: rgba(255,255,255,0.95);
    border-radius: 50px;
    padding: 5px;
}

.search-box input {
    border: none;
    padding: 15px 20px;
}

.search-box button {
    border-radius: 50px;
    padding: 15px 30px;
}

/* Buttons */
.btn-primary {
    background: var(--primary-color);
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }
    
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-section h1 {
        font-size: 32px;
    }
    
    .search-box {
        border-radius: 12px;
    }
    
    .project-card img {
        height: 160px;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0,0,0,.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toast Notifications */
.toast-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Pricing Tags */
.price-tag {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.original-price {
    text-decoration: line-through;
    color: #9ca3af;
    font-size: 14px;
}

.discount-badge {
    background: var(--danger-color);
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    margin-left: 8px;
}