/* ========================================
   Khun Thon Thai Restaurant — Styles
   ======================================== */

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

:root {
    --coral: #F4845F;
    --coral-light: #F9A88A;
    --coral-pale: #FDE8E0;
    --coral-bg: #FFF5F0;
    --charcoal: #2D2D2D;
    --charcoal-light: #4A4A4A;
    --charcoal-muted: #6B6B6B;
    --cream: #FFFAF7;
    --cream-dark: #FFF8F4;
    --white: #FFFFFF;
    --border: #F0E6E0;
    --shadow-sm: 0 2px 8px rgba(45, 45, 45, 0.06);
    --shadow-md: 0 4px 20px rgba(45, 45, 45, 0.08);
    --shadow-lg: 0 8px 40px rgba(45, 45, 45, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Lato', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--charcoal);
    background-color: var(--cream);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', Georgia, serif;
    line-height: 1.2;
    color: var(--charcoal);
}

a {
    color: inherit;
    text-decoration: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-coral {
    color: var(--coral);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: 'Lato', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: #e87450;
    border-color: #e87450;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(244, 132, 95, 0.35);
}

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

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

.btn-full {
    width: 100%;
    justify-content: center;
}

/* --- Section Headers --- */
.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--coral);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--charcoal-muted);
    max-width: 560px;
}

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

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

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 250, 247, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--charcoal);
}

.logo-text {
    letter-spacing: -0.01em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--charcoal-light);
    transition: color var(--transition);
    position: relative;
}

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

.nav-link:hover {
    color: var(--coral);
}

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

.nav-cta {
    background: var(--coral);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 50px;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: #e87450;
    color: var(--white) !important;
    transform: translateY(-1px);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--charcoal);
    transition: all var(--transition);
    border-radius: 2px;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 250, 247, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--charcoal);
    padding: 8px;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mobile-nav-link {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    color: var(--charcoal);
    transition: color var(--transition);
}

.mobile-nav-link:hover {
    color: var(--coral);
}

.mobile-nav-cta {
    margin-top: 16px;
    font-family: 'Lato', sans-serif;
    font-size: 1rem;
    background: var(--coral);
    color: var(--white);
    padding: 14px 40px;
    border-radius: 50px;
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(160deg, var(--cream) 0%, var(--coral-bg) 50%, var(--cream) 100%);
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.04;
    background-image: radial-gradient(circle at 2px 2px, var(--coral) 1px, transparent 0);
    background-size: 40px 40px;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid var(--border);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--charcoal-muted);
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
}

.hero-badge svg {
    color: var(--coral);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--charcoal-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}

.hero-highlights {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.hero-highlight {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--charcoal-light);
}

.hero-highlight svg {
    color: var(--coral);
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--charcoal-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* --- Menu Section --- */
.menu-section {
    padding: 100px 0;
    background: var(--white);
}

.menu-categories {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.menu-cat-btn {
    padding: 10px 24px;
    border: 1px solid var(--border);
    border-radius: 50px;
    background: transparent;
    font-family: 'Lato', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--charcoal-muted);
    cursor: pointer;
    transition: all var(--transition);
}

.menu-cat-btn:hover {
    border-color: var(--coral);
    color: var(--coral);
}

.menu-cat-btn.active {
    background: var(--coral);
    border-color: var(--coral);
    color: var(--white);
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.menu-item {
    background: var(--cream);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    border: 1px solid var(--border);
}

.menu-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.menu-item-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.menu-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu-item:hover .menu-item-img img {
    transform: scale(1.05);
}

.menu-item-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--coral);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.menu-item-content {
    padding: 24px;
}

.menu-item-content h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.menu-item-content p {
    font-size: 0.9rem;
    color: var(--charcoal-muted);
    line-height: 1.7;
}

.menu-note {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--coral-pale);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--charcoal-light);
}

.menu-note svg {
    color: var(--coral);
    flex-shrink: 0;
}

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

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

.about-images {
    position: relative;
}

.about-img-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-img-main img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-img-secondary {
    position: absolute;
    bottom: -40px;
    right: -40px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--cream);
}

.about-img-secondary img {
    width: 280px;
    height: 200px;
    object-fit: cover;
}

.about-decoration {
    position: absolute;
    top: -30px;
    left: -30px;
    z-index: -1;
}

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

.about-content .section-tag {
    text-align: left;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-text {
    color: var(--charcoal-muted);
    margin-bottom: 20px;
    font-size: 1.02rem;
}

.about-values {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.about-value-icon {
    width: 48px;
    height: 48px;
    background: var(--coral-pale);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about-value h4 {
    font-family: 'Lato', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.about-value p {
    font-size: 0.88rem;
    color: var(--charcoal-muted);
    line-height: 1.6;
}

/* --- Gallery Section --- */
.gallery-section {
    padding: 100px 0;
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 200px;
    gap: 16px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(45, 45, 45, 0.6) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: var(--white);
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
}

.gallery-item-wide {
    grid-column: span 2;
    grid-row: span 1;
}

.gallery-item-tall {
    grid-column: span 1;
    grid-row: span 2;
}

/* --- Visit Section --- */
.visit-section {
    padding: 100px 0;
    background: linear-gradient(160deg, var(--cream) 0%, var(--coral-bg) 100%);
}

.visit-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.visit-info .section-tag {
    text-align: left;
}

.visit-info .section-title {
    text-align: left;
    margin-bottom: 12px;
}

.visit-info .section-subtitle {
    text-align: left;
    margin-bottom: 40px;
}

.visit-details {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.visit-detail {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.visit-detail-icon {
    width: 52px;
    height: 52px;
    background: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.visit-detail h4 {
    font-family: 'Lato', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--coral);
    margin-bottom: 6px;
}

.visit-detail p {
    font-size: 0.95rem;
    color: var(--charcoal-light);
    line-height: 1.7;
}

.visit-detail a {
    color: var(--charcoal);
    transition: color var(--transition);
}

.visit-detail a:hover {
    color: var(--coral);
}

.visit-map {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    min-height: 400px;
}

/* --- Contact Section --- */
.contact-section {
    padding: 100px 0;
    background: var(--white);
}

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

.contact-info .section-tag {
    text-align: left;
}

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

.contact-text {
    color: var(--charcoal-muted);
    margin-bottom: 36px;
    font-size: 1.02rem;
}

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

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--cream);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.contact-method:hover {
    border-color: var(--coral);
    transform: translateX(4px);
}

.contact-method-icon {
    width: 44px;
    height: 44px;
    background: var(--coral-pale);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-method span {
    font-size: 0.95rem;
    color: var(--charcoal);
}

.contact-form-wrapper {
    background: var(--cream);
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid var(--border);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--charcoal-light);
    letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: 'Lato', sans-serif;
    font-size: 0.95rem;
    color: var(--charcoal);
    background: var(--white);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--coral);
    box-shadow: 0 0 0 3px rgba(244, 132, 95, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #bbb;
}

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

.form-success {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: #E8F5E9;
    border-radius: var(--radius-sm);
    color: #2E7D32;
    font-size: 0.95rem;
    margin-top: 8px;
}

.form-success.show {
    display: flex;
}

/* --- Footer --- */
.footer {
    background: var(--charcoal);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 60px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 280px;
}

.footer-links h4,
.footer-hours h4,
.footer-contact h4 {
    font-family: 'Lato', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer-hours {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.9rem;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.9rem;
}

.footer-contact a {
    transition: color var(--transition);
}

.footer-contact a:hover {
    color: var(--coral-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
}

/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .about-grid,
    .visit-content,
    .contact-grid {
        gap: 48px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 20px 60px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-highlights {
        gap: 16px;
    }
    
    .menu-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-img-secondary {
        right: 0;
        bottom: -30px;
    }
    
    .about-decoration {
        display: none;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        grid-auto-rows: 180px;
    }
    
    .gallery-item-wide {
        grid-column: span 2;
    }
    
    .gallery-item-tall {
        grid-row: span 1;
    }
    
    .visit-content {
        grid-template-columns: 1fr;
    }
    
    .visit-map {
        min-height: 300px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .contact-form-wrapper {
        padding: 28px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 90px 16px 50px;
    }
    
    .menu-categories {
        gap: 6px;
    }
    
    .menu-cat-btn {
        padding: 8px 16px;
        font-size: 0.82rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 220px;
    }
    
    .gallery-item-wide {
        grid-column: span 1;
    }
}