/* ===== CSS Variables ===== */
:root {
    --color-white: #FFFFFF;
    --color-cream: #FDF8F3;
    --color-cream-dark: #F5EDE4;
    --color-beige: #E8DED3;
    --color-brown-light: #D4C4B5;
    --color-brown: #A68B6A;
    --color-brown-dark: #8B7355;
    --color-brown-darker: #5C4D3C;
    --color-text: #3D3428;
    --color-text-light: #6B5D4D;
    --gradient-warm: linear-gradient(135deg, var(--color-cream) 0%, var(--color-beige) 100%);
    --shadow-sm: 0 2px 8px rgba(93, 77, 60, 0.08);
    --shadow-md: 0 4px 20px rgba(93, 77, 60, 0.12);
    --shadow-lg: 0 8px 40px rgba(93, 77, 60, 0.15);
    --shadow-card: 0 10px 40px rgba(93, 77, 60, 0.1);
    --font-thai: 'Prompt', sans-serif;
    --font-display: 'Playfair Display', serif;
    --section-padding: 100px 0;
    --container-width: 1200px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-thai); line-height: 1.7; color: var(--color-text); background: var(--color-white); overflow-x: hidden; }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }

.section-tag { display: inline-block; padding: 8px 20px; background: var(--color-cream); color: var(--color-brown); border-radius: 30px; font-size: 0.85rem; font-weight: 500; margin-bottom: 16px; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-title { font-family: var(--font-thai); font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 600; color: var(--color-text); line-height: 1.3; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 16px 32px; border-radius: 50px; font-family: var(--font-thai); font-size: 1rem; font-weight: 500; text-decoration: none; cursor: pointer; transition: all var(--transition-normal); border: none; }
.btn-primary { background: var(--color-brown); color: var(--color-white); box-shadow: 0 4px 15px rgba(166, 139, 106, 0.3); }
.btn-primary:hover { background: var(--color-brown-dark); transform: translateY(-2px); }
.btn-secondary { background: transparent; color: var(--color-brown); border: 2px solid var(--color-brown-light); }
.btn-secondary:hover { background: var(--color-cream); border-color: var(--color-brown); }
.btn-full { width: 100%; }

/* Navigation */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); transition: all var(--transition-normal); }
.navbar.scrolled { padding: 15px 0; box-shadow: var(--shadow-sm); }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: baseline; text-decoration: none; }
.logo-text { font-family: var(--font-display); font-size: 1.8rem; font-weight: 600; color: var(--color-brown); }
.logo-domain { font-size: 1rem; color: var(--color-brown-light); }
.nav-links { display: flex; gap: 40px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--color-text); font-size: 0.95rem; position: relative; transition: color var(--transition-fast); }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--color-brown); transition: width var(--transition-normal); }
.nav-links a:hover { color: var(--color-brown); }
.nav-links a:hover::after { width: 100%; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 5px; }
.menu-toggle span { display: block; width: 25px; height: 2px; background: var(--color-text); transition: all var(--transition-fast); }

/* Hero */
.hero { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; align-items: center; padding: 120px 24px 60px; max-width: var(--container-width); margin: 0 auto; gap: 60px; }
.hero-content { padding-right: 40px; }
.hero-title { margin-bottom: 24px; }
.hero-title-line { display: block; font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 600; color: var(--color-text); line-height: 1.2; }
.hero-title-accent { display: block; font-family: var(--font-display); font-size: clamp(2.2rem, 5.5vw, 3.5rem); font-weight: 500; color: var(--color-brown); font-style: italic; }
.hero-subtitle { font-size: 1.15rem; color: var(--color-text-light); margin-bottom: 40px; line-height: 1.8; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-image-wrapper { position: relative; width: 400px; height: 400px; background: var(--gradient-warm); border-radius: 50%; display: flex; justify-content: center; align-items: center; }
.hero-image-wrapper::before { content: ''; position: absolute; width: 100%; height: 100%; border-radius: 50%; border: 2px dashed var(--color-brown-light); animation: rotate 30s linear infinite; }
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.floating-card { position: absolute; background: var(--color-white); padding: 16px 24px; border-radius: 16px; box-shadow: var(--shadow-card); display: flex; align-items: center; gap: 12px; font-weight: 500; animation: float 3s ease-in-out infinite; }
.floating-card .card-icon { font-size: 1.5rem; }
.card-1 { top: 20%; left: -10%; animation-delay: 0s; }
.card-2 { top: 60%; right: -5%; animation-delay: 1s; }
.card-3 { bottom: 5%; left: 10%; animation-delay: 2s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }

/* Services */
.services { padding: var(--section-padding); background: var(--color-cream); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.service-card { background: var(--color-white); padding: 40px; border-radius: 24px; transition: all var(--transition-normal); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--color-brown-light); transform: scaleX(0); transition: transform var(--transition-normal); }
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.service-card:hover::before { transform: scaleX(1); }
.service-card.featured { background: var(--color-brown); color: var(--color-white); }
.service-card.featured::before { background: var(--color-cream); }
.service-card.featured .service-icon { color: var(--color-cream); }
.service-card.featured h3 { color: var(--color-white); }
.service-card.featured p, .service-card.featured li { color: rgba(255, 255, 255, 0.85); }
.featured-badge { position: absolute; top: 20px; right: 20px; background: var(--color-cream); color: var(--color-brown); padding: 6px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 500; }
.service-icon { width: 64px; height: 64px; margin-bottom: 24px; color: var(--color-brown); }
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 { font-size: 1.5rem; font-weight: 600; margin-bottom: 12px; color: var(--color-text); }
.service-card > p { color: var(--color-text-light); margin-bottom: 20px; }
.service-features { list-style: none; }
.service-features li { padding: 8px 0; padding-left: 24px; position: relative; color: var(--color-text-light); font-size: 0.95rem; }
.service-features li::before { content: '✓'; position: absolute; left: 0; color: var(--color-brown); font-weight: 600; }
.service-card.featured .service-features li::before { color: var(--color-cream); }

/* Why Us */
.why-us { padding: var(--section-padding); background: var(--color-white); }
.why-us-content { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.why-us-text .section-title { text-align: left; margin-bottom: 20px; }
.why-us-description { color: var(--color-text-light); font-size: 1.1rem; margin-bottom: 40px; }
.features-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.feature-item { display: flex; gap: 16px; }
.feature-icon { width: 48px; height: 48px; background: var(--color-cream); border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.feature-icon svg { width: 24px; height: 24px; color: var(--color-brown); }
.feature-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.feature-item p { font-size: 0.9rem; color: var(--color-text-light); }
.why-us-image { position: relative; display: flex; justify-content: center; align-items: center; }
.image-decoration { width: 350px; height: 400px; background: var(--gradient-warm); border-radius: 200px 200px 24px 24px; position: relative; }
.image-decoration::after { content: '🎨'; font-size: 8rem; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); opacity: 0.6; }
.stats-card { position: absolute; bottom: 40px; left: -40px; right: -40px; background: var(--color-white); padding: 30px; border-radius: 20px; box-shadow: var(--shadow-lg); display: flex; justify-content: space-around; }
.stat { text-align: center; }
.stat-number { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 600; color: var(--color-brown); }
.stat-label { font-size: 0.85rem; color: var(--color-text-light); }

/* Gallery */
.gallery { padding: var(--section-padding); background: var(--color-cream); }
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 200px; gap: 20px; }
.gallery-item { position: relative; border-radius: 16px; overflow: hidden; cursor: pointer; transition: transform var(--transition-normal); }
.gallery-item:hover { transform: scale(1.02); }
.gallery-item.large { grid-column: span 2; grid-row: span 2; }
.gallery-item.tall { grid-row: span 2; }
.gallery-placeholder { width: 100%; height: 100%; background: linear-gradient(135deg, var(--color-brown-light) 0%, var(--color-beige) 100%); display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 12px; color: var(--color-white); transition: all var(--transition-normal); }
.gallery-placeholder:hover { background: linear-gradient(135deg, var(--color-brown) 0%, var(--color-brown-light) 100%); }
.gallery-icon { font-size: 2.5rem; }

/* Process */
.process { padding: var(--section-padding); background: var(--color-white); }
.process-steps { display: flex; align-items: flex-start; justify-content: center; gap: 20px; }
.process-step { text-align: center; flex: 1; max-width: 200px; }
.step-number { font-family: var(--font-display); font-size: 2.5rem; font-weight: 600; color: var(--color-brown); margin-bottom: 16px; }
.process-step h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.process-step p { font-size: 0.9rem; color: var(--color-text-light); }
.process-connector { width: 60px; height: 2px; background: linear-gradient(90deg, var(--color-brown-light), var(--color-beige)); margin-top: 30px; flex-shrink: 0; }

/* Contact */
.contact { padding: var(--section-padding); background: var(--color-cream); }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-info .section-title { text-align: left; margin-bottom: 16px; }
.contact-info > p { color: var(--color-text-light); margin-bottom: 40px; }
.contact-details { display: flex; flex-direction: column; gap: 24px; margin-bottom: 40px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon { width: 48px; height: 48px; background: var(--color-white); border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-icon svg { width: 22px; height: 22px; color: var(--color-brown); }
.contact-item h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.contact-item p { font-size: 0.95rem; color: var(--color-text-light); }
.social-links { display: flex; gap: 12px; }
.social-link { width: 48px; height: 48px; background: var(--color-white); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--color-brown); transition: all var(--transition-normal); }
.social-link:hover { background: var(--color-brown); color: var(--color-white); transform: translateY(-3px); }
.social-link svg { width: 22px; height: 22px; }
.contact-form-wrapper { background: var(--color-white); padding: 40px; border-radius: 24px; box-shadow: var(--shadow-md); }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.95rem; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { padding: 14px 18px; border: 2px solid var(--color-beige); border-radius: 12px; font-family: var(--font-thai); font-size: 1rem; color: var(--color-text); background: var(--color-white); transition: all var(--transition-fast); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--color-brown); box-shadow: 0 0 0 4px rgba(166, 139, 106, 0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* Footer */
.footer { background: var(--color-brown-darker); color: var(--color-cream); padding: 60px 0 30px; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: var(--color-cream); }
.footer-brand .logo-domain { color: var(--color-brown-light); }
.footer-brand p { color: rgba(255, 255, 255, 0.7); font-size: 0.95rem; }
.footer-links h4 { font-size: 1rem; font-weight: 600; margin-bottom: 20px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: rgba(255, 255, 255, 0.7); text-decoration: none; font-size: 0.95rem; transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--color-cream); }
.footer-bottom { padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, 0.1); text-align: center; }
.footer-bottom p { color: rgba(255, 255, 255, 0.5); font-size: 0.9rem; }

/* Responsive */
@media (max-width: 1024px) {
    .hero { grid-template-columns: 1fr; text-align: center; min-height: auto; padding-top: 140px; }
    .hero-content { padding-right: 0; }
    .hero-buttons { justify-content: center; }
    .hero-image { order: -1; }
    .hero-image-wrapper { width: 300px; height: 300px; }
    .services-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .why-us-content { grid-template-columns: 1fr; gap: 60px; }
    .why-us-text .section-title, .why-us-text .section-tag { text-align: center; }
    .why-us-description { text-align: center; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-item.large { grid-column: span 2; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .contact-info .section-title, .contact-info .section-tag { text-align: center; }
    .contact-info > p { text-align: center; }
    .footer-content { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--color-white); flex-direction: column; padding: 20px; gap: 0; box-shadow: var(--shadow-md); }
    .nav-links.active { display: flex; }
    .nav-links li { padding: 15px 0; border-bottom: 1px solid var(--color-beige); }
    .menu-toggle { display: flex; }
    .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .menu-toggle.active span:nth-child(2) { opacity: 0; }
    .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    .floating-card { padding: 12px 16px; font-size: 0.85rem; }
    .card-1 { left: 0; } .card-2 { right: 0; } .card-3 { left: 5%; }
    .features-list { grid-template-columns: 1fr; }
    .process-steps { flex-direction: column; align-items: center; }
    .process-connector { width: 2px; height: 30px; margin: 0; }
    .gallery-grid { grid-template-columns: 1fr; }
    .gallery-item.large, .gallery-item.tall { grid-column: span 1; grid-row: span 1; }
    .stats-card { left: 0; right: 0; flex-direction: column; gap: 20px; }
    .footer-content { grid-template-columns: 1fr; text-align: center; }
    .social-links { justify-content: center; }
}
@media (max-width: 480px) {
    :root { --section-padding: 60px 0; }
    .hero-title-line { font-size: 1.8rem; }
    .hero-title-accent { font-size: 2rem; }
    .hero-image-wrapper { width: 250px; height: 250px; }
    .service-card { padding: 30px; }
    .contact-form-wrapper { padding: 24px; }
}