/* ============================================
   YHOUSE 3D STUDIO - Main Stylesheet
   Cloudflare Pages Version v2
   ============================================ */

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

:root {
  --color-primary: #1a1a2e;
  --color-accent: #c9a96e;
  --color-accent-hover: #b8943d;
  --color-text: #333;
  --color-text-light: #666;
  --color-text-muted: #999;
  --color-bg: #fff;
  --color-bg-warm: #faf8f5;
  --color-bg-dark: #1a1a2e;
  --color-bg-card: #fff;
  --color-border: #e8e4df;
  --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --max-width: 1200px;
  --header-height: 72px;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* --- Header --- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  transition: box-shadow 0.3s;
}
.header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: baseline; gap: 8px; }
.logo-text { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 700; color: var(--color-primary); letter-spacing: 2px; }
.logo-sub { font-size: 0.65rem; font-weight: 500; letter-spacing: 3px; color: var(--color-accent); text-transform: uppercase; }

.nav { display: flex; gap: 32px; }
.nav-link { font-size: 0.9rem; font-weight: 400; color: var(--color-text-light); transition: color 0.2s; position: relative; }
.nav-link:hover, .nav-link.active { color: var(--color-primary); }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--color-accent); transition: width 0.3s; }
.nav-link:hover::after { width: 100%; }

.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background: var(--color-primary); transition: 0.3s; transform-origin: center; }
.mobile-menu-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Buttons --- */
.btn { display: inline-block; padding: 14px 36px; font-size: 0.95rem; font-weight: 500; border-radius: 4px; transition: all 0.3s; letter-spacing: 0.5px; }
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(201,169,110,0.4); }
.btn-outline { border: 1.5px solid var(--color-accent); color: var(--color-accent); }
.btn-outline:hover { background: var(--color-accent); color: #fff; }
.btn-ghost { padding: 14px 36px; font-size: 0.95rem; color: var(--color-text-light); font-weight: 500; letter-spacing: 0.5px; transition: color 0.3s; }
.btn-ghost:hover { color: var(--color-accent); }
.btn-lg { padding: 18px 48px; font-size: 1.05rem; }

/* --- Hero --- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding-top: var(--header-height); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: linear-gradient(135deg, #f8f6f3 0%, #efe9e0 50%, #e8e0d4 100%); z-index: 0; }
.hero-bg::after { content: ''; position: absolute; right: -10%; top: -10%; width: 60%; height: 120%; background: radial-gradient(ellipse, rgba(201,169,110,0.08) 0%, transparent 70%); }
.hero-content { position: relative; z-index: 1; padding: 80px 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-tag { font-size: 0.75rem; letter-spacing: 4px; color: var(--color-accent); font-weight: 500; margin-bottom: 24px; text-transform: uppercase; }
.hero-title { font-family: var(--font-sans); font-size: 3.2rem; font-weight: 700; line-height: 1.3; color: var(--color-primary); margin-bottom: 24px; }
.hero-title em { font-style: normal; color: var(--color-accent); }
.hero-desc { font-size: 1.1rem; color: var(--color-text-light); line-height: 1.9; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 32px; margin-top: 48px; }
.badge { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--color-text-light); font-weight: 400; }
.badge-icon { font-size: 1.2rem; }

/* Hero Visual - CSS Figure Illustration */
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-figure { position: relative; width: 280px; height: 320px; }
.figure-platform { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 180px; height: 20px; background: linear-gradient(135deg, var(--color-accent), #d4b87a); border-radius: 50%; opacity: 0.6; }
.figure-body { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); width: 120px; height: 220px; background: linear-gradient(180deg, #e8e0d4 0%, #d4c8b8 40%, var(--color-accent) 100%); border-radius: 60px 60px 30px 30px; opacity: 0.4; }
.figure-body::before { content: ''; position: absolute; top: -40px; left: 50%; transform: translateX(-50%); width: 70px; height: 70px; background: linear-gradient(135deg, #e8e0d4, #d4c8b8); border-radius: 50%; }
.figure-glow { position: absolute; bottom: -20px; left: 50%; transform: translateX(-50%); width: 240px; height: 60px; background: radial-gradient(ellipse, rgba(201,169,110,0.2) 0%, transparent 70%); }
@keyframes float { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-12px); } }
.figure-body { animation: float 4s ease-in-out infinite; }

/* --- Sections Common --- */
.section { padding: 100px 0; }
.section-tag { font-size: 0.75rem; letter-spacing: 4px; color: var(--color-accent); font-weight: 500; text-transform: uppercase; margin-bottom: 16px; }
.section-title { font-size: 2.4rem; font-weight: 700; color: var(--color-primary); line-height: 1.4; margin-bottom: 24px; }
.section-desc { font-size: 1.05rem; color: var(--color-text-light); line-height: 1.9; max-width: 600px; }
.section-desc-sm { font-size: 0.95rem; color: var(--color-text-muted); margin-bottom: 16px; }
.section-highlight { margin-top: 32px; font-size: 1.15rem; font-weight: 600; color: var(--color-accent); }

/* --- Story --- */
.section-story { background: var(--color-bg-warm); text-align: center; }
.section-story .section-desc { margin: 0 auto; }
.story-stats { display: flex; justify-content: center; gap: 60px; margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--color-border); }
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-serif); font-size: 2rem; font-weight: 700; color: var(--color-accent); }
.stat-label { display: block; font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }

/* --- Process --- */
.section-process { text-align: center; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 56px; }
.process-card { padding: 48px 32px; background: var(--color-bg-warm); border-radius: 12px; text-align: left; transition: transform 0.3s, box-shadow 0.3s; }
.process-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(0,0,0,0.06); }
.process-num { font-family: var(--font-serif); font-size: 2rem; font-weight: 700; color: var(--color-accent); margin-bottom: 8px; }
.process-icon { font-size: 2rem; margin-bottom: 16px; }
.process-card h3 { font-size: 1.15rem; font-weight: 600; color: var(--color-primary); margin-bottom: 12px; }
.process-card p { font-size: 0.9rem; color: var(--color-text-light); line-height: 1.8; }

/* --- Gallery --- */
.section-gallery { background: var(--color-bg-warm); text-align: center; }
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 48px; }
.gallery-item { border-radius: 12px; overflow: hidden; }
.gallery-placeholder { aspect-ratio: 1; background: linear-gradient(135deg, #c9a96e, #a68b54); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; transition: transform 0.4s; cursor: pointer; }
.gallery-placeholder:hover { transform: scale(1.05); }
.gallery-svg { width: 60px; height: 60px; opacity: 0.7; }
.gallery-placeholder span { font-size: 0.85rem; letter-spacing: 1px; color: rgba(255,255,255,0.9); font-weight: 500; }

/* --- Features / Why --- */
.section-why { text-align: center; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.feature-card { padding: 40px 24px; background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: 12px; text-align: center; transition: border-color 0.3s, box-shadow 0.3s; }
.feature-card:hover { border-color: var(--color-accent); box-shadow: 0 4px 24px rgba(201,169,110,0.12); }
.feature-icon { font-size: 2.2rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.05rem; font-weight: 600; color: var(--color-primary); margin-bottom: 10px; }
.feature-card p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.7; }

/* --- CTA Banner --- */
.section-cta { background: var(--color-bg-dark); text-align: center; padding: 100px 0; }
.cta-tag { font-size: 0.7rem; letter-spacing: 5px; color: var(--color-accent); margin-bottom: 20px; }
.cta-title { font-size: 2.2rem; font-weight: 700; color: #fff; line-height: 1.4; margin-bottom: 20px; }
.cta-desc { font-size: 1rem; color: rgba(255,255,255,0.6); margin-bottom: 40px; }

/* --- Order / Pricing --- */
.section-order { text-align: center; background: var(--color-bg-warm); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; margin-bottom: 32px; }
.pricing-card { position: relative; background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: 16px; padding: 48px 32px; text-align: center; transition: transform 0.3s, box-shadow 0.3s; }
.pricing-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.08); }
.pricing-card.popular { border-color: var(--color-accent); box-shadow: 0 8px 32px rgba(201,169,110,0.15); }
.pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--color-accent); color: #fff; font-size: 0.7rem; font-weight: 600; letter-spacing: 2px; padding: 4px 20px; border-radius: 20px; }
.pricing-size { font-family: var(--font-serif); font-size: 2.5rem; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; }
.pricing-price { font-size: 1.6rem; font-weight: 700; color: var(--color-accent); margin-bottom: 16px; }
.pricing-desc { font-size: 0.9rem; color: var(--color-text-light); line-height: 1.7; margin-bottom: 28px; }
.pricing-note { font-size: 0.8rem; color: var(--color-text-muted); }

/* --- FAQ --- */
.section-faq { text-align: center; }
.faq-list { max-width: 720px; margin: 48px auto 0; text-align: left; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 24px 0; font-size: 1rem; font-weight: 500; color: var(--color-primary); text-align: left; transition: color 0.2s; }
.faq-question:hover { color: var(--color-accent); }
.faq-icon { font-size: 1.4rem; font-weight: 300; color: var(--color-accent); transition: transform 0.3s; flex-shrink: 0; margin-left: 16px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer p { padding: 0 0 24px; font-size: 0.9rem; color: var(--color-text-light); line-height: 1.8; }

/* --- Contact --- */
.section-contact { text-align: center; background: var(--color-bg-warm); padding: 120px 0; }
.contact-actions { display: flex; gap: 16px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }
.contact-info { display: flex; gap: 48px; justify-content: center; margin-top: 40px; }
.contact-item { text-align: center; }
.contact-label { display: block; font-size: 0.75rem; letter-spacing: 2px; text-transform: uppercase; color: var(--color-text-muted); margin-bottom: 4px; }
.contact-value { font-size: 1rem; font-weight: 500; color: var(--color-primary); }

/* --- Footer --- */
.footer { background: var(--color-bg-dark); color: rgba(255,255,255,0.5); padding: 60px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-sub { color: var(--color-accent); }
.footer-tagline { margin-top: 12px; font-size: 0.85rem; }
.footer-nav h4, .footer-contact h4 { color: rgba(255,255,255,0.8); font-size: 0.85rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 1px; }
.footer-nav a { display: block; font-size: 0.85rem; color: rgba(255,255,255,0.5); transition: color 0.2s; margin-bottom: 8px; }
.footer-nav a:hover { color: var(--color-accent); }
.footer-contact p { font-size: 0.85rem; margin-bottom: 6px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; }
.footer-biz { margin-bottom: 12px; }
.footer-biz p { font-size: 0.75rem; color: rgba(255,255,255,0.3); margin-bottom: 2px; }
.footer-copy { font-size: 0.8rem; }

/* --- Kakao Floating Button --- */
.kakao-float { position: fixed; bottom: 32px; right: 32px; z-index: 999; width: 60px; height: 60px; background: #FEE500; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(0,0,0,0.15); transition: transform 0.3s, box-shadow 0.3s; }
.kakao-float:hover { transform: translateY(-4px); box-shadow: 0 6px 24px rgba(0,0,0,0.2); }

/* --- Animations --- */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}

@media (max-width: 768px) {
  .mobile-menu-btn { display: flex; }
  .nav { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: #fff; flex-direction: column; padding: 24px; gap: 16px; border-bottom: 1px solid var(--color-border); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
  .nav.open { display: flex; }
  .hero-title { font-size: 2.2rem; }
  .hero-desc { font-size: 1rem; }
  .hero-badges { flex-direction: column; gap: 16px; }
  .hero-content { padding: 60px 24px; }
  .section { padding: 72px 0; }
  .section-title { font-size: 1.8rem; }
  .process-grid { grid-template-columns: 1fr; gap: 20px; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
  .features-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .story-stats { gap: 32px; }
  .contact-info { flex-direction: column; gap: 20px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .section-title { font-size: 1.5rem; }
  .hero-actions { flex-direction: column; }
  .kakao-float { bottom: 20px; right: 20px; width: 52px; height: 52px; }
}