/* ===== CSS Variables ===== */
:root {
    --color-primary: #C84B31;
    --color-primary-dark: #A33D28;
    --color-secondary: #2D4356;
    --color-accent: #F5C06A;
    --color-background: #FFFAF5;
    --color-surface: #FFFFFF;
    --color-text: #1A1A1A;
    --color-text-secondary: #5A5A5A;
    --color-text-light: #FFFFFF;
    --color-border: #E8E0D8;
    
    --font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-tag.light {
    color: var(--color-accent);
}

.section-title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-title.light {
    color: var(--color-text-light);
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .section-description {
    margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-light);
    border-color: var(--color-text-light);
}

.btn-secondary:hover {
    background-color: var(--color-text-light);
    color: var(--color-text);
}

.btn-light {
    background-color: var(--color-text-light);
    color: var(--color-text);
    border-color: var(--color-text-light);
}

.btn-light:hover {
    background-color: transparent;
    color: var(--color-text-light);
}

.btn-full {
    width: 100%;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.navbar.scrolled .nav-link {
    color: var(--color-text);
}

.navbar.scrolled .nav-logo {
    color: var(--color-text);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-light);
}

.logo-icon {
    font-size: 1.75rem;
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-light);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-light);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-light);
    left: 0;
    transition: var(--transition);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.navbar.scrolled .hamburger,
.navbar.scrolled .hamburger::before,
.navbar.scrolled .hamburger::after {
    background-color: var(--color-text);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2D4356 100%);
    background-image: url('../images/night-market.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.6) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0.7) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
}

.hero-subtitle {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 900;
    color: var(--color-text-light);
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title .highlight {
    color: var(--color-primary);
}

.hero-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    letter-spacing: 2px;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid rgba(255, 255, 255, 0.6);
    border-bottom: 2px solid rgba(255, 255, 255, 0.6);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===== Features Section ===== */
.features {
    padding: 80px 0;
    background-color: var(--color-surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.feature-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-border);
    margin-bottom: 16px;
}

.feature-card:hover .feature-number {
    color: var(--color-primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== Featured Section ===== */
.featured {
    padding: 100px 0;
    background-color: var(--color-background);
}

.food-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
}

.showcase-image-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.showcase-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.showcase-image-container:hover .showcase-image {
    transform: scale(1.05);
}

.showcase-info {
    padding: 20px 0;
}

.food-tag {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--color-primary);
    color: var(--color-text-light);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
}

.food-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.food-description {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.food-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.food-details li {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.food-details strong {
    color: var(--color-text);
}

.food-gallery {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.food-card {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition);
}

.food-card.active,
.food-card:hover {
    opacity: 1;
}

.food-card.active {
    box-shadow: 0 0 0 3px var(--color-primary);
}

.food-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.food-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--color-text-light);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ===== Categories Section ===== */
.categories {
    padding: 100px 0;
    background-color: var(--color-surface);
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

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

.tab-btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-light);
}

.category-grid {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.category-grid.active {
    display: grid;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-card {
    background-color: var(--color-background);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.category-card-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.category-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.category-card:hover .category-card-image img {
    transform: scale(1.08);
}

.category-card-content {
    padding: 24px;
}

.category-card-content h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.category-card-content p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.price-tag {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--color-accent);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

/* ===== Night Market Section ===== */
.night-market {
    position: relative;
    padding: 120px 0;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.night-market-bg {
    position: absolute;
    inset: 0;
}

.night-market-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.night-market-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.85) 0%,
        rgba(0, 0, 0, 0.6) 50%,
        rgba(0, 0, 0, 0.4) 100%
    );
}

.night-market-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.night-market-text {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 40px;
}

.night-market-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

/* ===== About Section ===== */
.about {
    padding: 100px 0;
    background-color: var(--color-background);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.about-feature-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about-feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-text-light);
}

.about-feature h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-image-accent {
    position: absolute;
    bottom: -24px;
    right: -24px;
    width: 200px;
    height: 200px;
    background-color: var(--color-accent);
    border-radius: var(--radius-lg);
    z-index: -1;
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
    background-color: var(--color-surface);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-title {
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1rem;
    color: var(--color-text);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-background);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.contact-form {
    background-color: var(--color-background);
    padding: 40px;
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-family: var(--font-family);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-secondary);
    color: var(--color-text-light);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .nav-logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-links h4,
.footer-social h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--color-primary);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .food-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-grid,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--color-surface);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 40px;
        gap: 24px;
        transition: right 0.3s ease;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu .nav-link {
        color: var(--color-text);
        font-size: 1.125rem;
    }
    
    .nav-toggle {
        display: block;
        z-index: 1001;
    }
    
    .nav-toggle.active .hamburger {
        background-color: transparent;
    }
    
    .nav-toggle.active .hamburger::before {
        transform: rotate(45deg);
        top: 0;
        background-color: var(--color-text);
    }
    
    .nav-toggle.active .hamburger::after {
        transform: rotate(-45deg);
        bottom: 0;
        background-color: var(--color-text);
    }
    
    .hero {
        background-attachment: scroll;
    }
    
    .food-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .night-market-stats {
        gap: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .food-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 24px;
    }
}