:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a8a4e6;
    --background-color: #f9f9f9;
    --text-color: #2d3436;
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Dark mode variables */
[data-theme="dark"] {
    --primary-color: #a29bfe;
    --secondary-color: #6c5ce7;
    --background-color: #2d3436;
    --text-color: #f9f9f9;
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

/* Glassmorphism effect */
.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}

[data-theme="dark"] .glass-card {
    background: rgba(0, 0, 0, 0.2);
}

/* Menu item cards */
.menu-item {
    perspective: 1000px;
    margin-bottom: 2rem;
}

.menu-item-inner {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s;
}

.menu-item:hover .menu-item-inner {
    transform: rotateY(10deg);
}

.menu-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
}

/* Category tabs */
.category-tab {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    margin: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-tab:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Theme toggle button */
.theme-toggle {
    position: fixed;
    top: 40px;
    right: 20px;
    z-index: 1;
    display: none !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .menu-item img {
        height: 150px;
    }
    
    .category-tab {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}