/* ================================
   Singapore Website - CSS Styles
   ================================ */

/* CSS Variables / Design Tokens */
:root {
    /* Primary Colors */
    --color-primary: #C41E3A;       /* Singapore red */
    --color-primary-dark: #9B1830;
    --color-primary-light: #E8425A;
    
    /* Neutrals */
    --color-background: #FAFAF9;
    --color-foreground: #1A1A1A;
    --color-muted: #6B6B6B;
    --color-muted-light: #9A9A9A;
    --color-border: #E5E5E5;
    --color-card: #FFFFFF;
    
    /* Accents */
    --color-accent: #D4A853;         /* Gold accent */
    --color-accent-dark: #B8923E;
    
    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-foreground);
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
    color: var(--color-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background-color: var(--color-foreground);
    color: white;
    border-color: var(--color-foreground);
}

.btn-secondary:hover {
    background-color: transparent;
    color: var(--color-foreground);
}

.btn-outline {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-outline:hover {
    background-color: white;
    color: var(--color-foreground);
}

.btn-full {
    width: 100%;
}

/* ================================
   Navigation
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-lg) 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: var(--space-md) 0;
}

.navbar.scrolled .logo-text,
.navbar.scrolled .nav-links a {
    color: var(--color-foreground);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    color: white;
    transition: color var(--transition-normal);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    color: white;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--transition-normal);
}

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

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background-color: white;
    transition: all var(--transition-normal);
}

.navbar.scrolled .mobile-toggle span {
    background-color: var(--color-foreground);
}

/* ================================
   Hero Section
   ================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.4) 0%,
        rgba(0, 0, 0, 0.5) 50%,
        rgba(0, 0, 0, 0.7) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: var(--space-xl);
}

.hero-subtitle {
    color: var(--color-accent);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.hero-title {
    color: white;
    margin-bottom: var(--space-lg);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-description {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: 1.7;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(255, 255, 255, 0.7);
    border-bottom: 2px solid rgba(255, 255, 255, 0.7);
    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); }
}

/* ================================
   Stats Section
   ================================ */
.stats-section {
    background-color: var(--color-foreground);
    padding: var(--space-3xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    text-align: center;
}

.stat-item {
    padding: var(--space-lg);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: white;
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-accent);
}

.stat-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-top: var(--space-sm);
}

/* ================================
   Section Styles
   ================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-subtitle {
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-description {
    font-size: 1.1rem;
    line-height: 1.7;
}

/* ================================
   Attractions Section
   ================================ */
.attractions-section {
    padding: var(--space-4xl) 0;
}

.attractions-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-xl);
}

.attraction-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--color-card);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.attraction-card-large {
    grid-row: span 2;
}

.attraction-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.attraction-card-large .attraction-image {
    aspect-ratio: auto;
    height: 60%;
}

.attraction-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.attraction-card:hover .attraction-image img {
    transform: scale(1.05);
}

.attraction-content {
    padding: var(--space-lg);
}

.attraction-tag {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.attraction-content h3 {
    margin-bottom: var(--space-sm);
}

.attraction-content p {
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
}

.attraction-link {
    color: var(--color-primary);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.attraction-link:hover {
    color: var(--color-primary-dark);
}

/* ================================
   Food Section
   ================================ */
.food-section {
    padding: var(--space-4xl) 0;
    background-color: #F5F3EF;
}

.food-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.food-content {
    max-width: 500px;
}

.food-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
}

.food-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.food-item {
    display: flex;
    gap: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.food-number {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.5;
}

.food-item h4 {
    margin-bottom: var(--space-xs);
    color: var(--color-foreground);
}

.food-item p {
    font-size: 0.9rem;
}

.food-image-container {
    position: relative;
}

.food-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.food-image img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
}

.food-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: var(--color-accent);
    color: var(--color-foreground);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-text {
    display: block;
    font-weight: 700;
    font-size: 1.1rem;
}

.badge-subtext {
    font-size: 0.85rem;
}

/* ================================
   Culture Section
   ================================ */
.culture-section {
    padding: var(--space-4xl) 0;
}

.culture-showcase {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-xl);
}

.culture-main {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.culture-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 500px;
}

.culture-main-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-2xl);
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: white;
}

.culture-main-content h3 {
    color: white;
    margin-bottom: var(--space-sm);
}

.culture-main-content p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
}

.culture-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.culture-card {
    background-color: var(--color-card);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.culture-card-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.culture-card h4 {
    margin-bottom: var(--space-sm);
}

.culture-card p {
    font-size: 0.9rem;
}

/* ================================
   CTA Section
   ================================ */
.cta-section {
    position: relative;
    padding: var(--space-4xl) 0;
    background-color: var(--color-primary);
    overflow: hidden;
}

.cta-background {
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 200px;
    opacity: 0.5;
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--space-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background-color: white;
    color: var(--color-primary);
    border-color: white;
}

.cta-section .btn-primary:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-foreground);
}

/* ================================
   Contact Section
   ================================ */
.contact-section {
    padding: var(--space-4xl) 0;
    background-color: #F5F3EF;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
}

.contact-description {
    font-size: 1.1rem;
    margin-bottom: var(--space-2xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-item {
    display: flex;
    gap: var(--space-md);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-item strong {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--color-foreground);
}

.contact-item p {
    font-size: 0.95rem;
}

.contact-form-container {
    background-color: var(--color-card);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-foreground);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
}

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

/* ================================
   Footer
   ================================ */
.footer {
    background-color: var(--color-foreground);
    color: white;
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin: var(--space-lg) 0;
    font-size: 0.95rem;
}

.footer-brand .logo-text {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    transition: all var(--transition-normal);
}

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

.footer-links h4 {
    color: white;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-xl);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

.footer-legal a:hover {
    color: white;
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 1024px) {
    .attractions-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .attraction-card-large {
        grid-row: span 1;
        grid-column: span 2;
    }
    
    .culture-showcase {
        grid-template-columns: 1fr;
    }
    
    .culture-main img {
        min-height: 400px;
    }
    
    .culture-cards {
        flex-direction: row;
    }
    
    .culture-card {
        flex: 1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-foreground);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-xl);
        padding: var(--space-xl);
        transition: right var(--transition-normal);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        color: white;
        font-size: 1.25rem;
    }
    
    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .attractions-grid {
        grid-template-columns: 1fr;
    }
    
    .attraction-card-large {
        grid-column: span 1;
    }
    
    .food-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .food-image-container {
        order: -1;
    }
    
    .food-badge {
        bottom: 20px;
        right: 20px;
    }
    
    .culture-cards {
        flex-direction: column;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }
    
    .footer-brand {
        grid-column: span 2;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

/* Toast notification for form */
.toast {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    background-color: var(--color-foreground);
    color: white;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background-color: #22C55E;
}