:root {
    --primary-color: #2c1e16; /* Deep coffee brown */
    --accent-color: #c89f7a; /* Warm gold/latte */
    --bg-color: #fcfbfa; /* Off-white */
    --text-dark: #333333;
    --text-light: #777777;
    --white: #ffffff;
    --font-sans: 'Noto Sans TC', sans-serif;
    --font-serif: 'Playfair Display', serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 2rem;
    background: rgba(252, 251, 250, 0.85);
    backdrop-filter: blur(10px);
    z-index: 100;
    text-align: center;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    position: relative;
    height: 60vh;
    min-height: 400px;
    background-image: url('images/hero.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(44,30,22,0.4), rgba(44,30,22,0.7));
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    padding: 0 20px;
}

.hero-content h1 {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 4px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 1px;
    opacity: 0.9;
}

/* Menu Section */
.menu-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.menu-header {
    text-align: center;
    margin-bottom: 3rem;
}

.menu-header h2 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

/* Category Filters */
.category-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--accent-color);
    color: var(--white);
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.product-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.product-info {
    padding: 1.5rem;
    text-align: center;
}

.product-name {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.product-desc-short {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-weight: 500;
    color: var(--accent-color);
    font-size: 1.1rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--white);
    width: 90%;
    max-width: 900px;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--primary-color);
    cursor: pointer;
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.8);
}

.modal-body {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

@media (min-width: 768px) {
    .modal-body {
        flex-direction: row;
    }
}

.modal-image-container {
    flex: 1;
    min-height: 300px;
}

.modal-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-info {
    flex: 1;
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.modal-category {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.modal-info h3 {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.modal-price {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-dark);
}

.modal-divider {
    height: 1px;
    background: rgba(0,0,0,0.1);
    margin: 1.5rem 0;
}

.modal-desc {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.modal-notes h4 {
    font-size: 0.95rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.modal-notes p {
    font-size: 0.9rem;
    color: var(--text-light);
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background: var(--primary-color);
    color: var(--white);
    opacity: 0.9;
}