/* ===== Yao Yoga Wear — Global Styles ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a1a2e; background: #fff; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.header { background: #fff; border-bottom: 1px solid #eee; position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 1.25rem; font-weight: 700; color: #1a1a2e; }
.logo span { color: #16a34a; }
.nav { display: flex; gap: 2rem; }
.nav a { font-size: 0.95rem; color: #555; transition: color .2s; }
.nav a:hover { color: #16a34a; }
.btn { display: inline-block; padding: .6rem 1.5rem; border-radius: 6px; font-weight: 600; font-size: 0.95rem; transition: all .2s; cursor: pointer; border: 2px solid transparent; }
.btn-primary { background: #16a34a; color: #fff; border-color: #16a34a; }
.btn-primary:hover { background: #15803d; }
.btn-outline { background: transparent; color: #16a34a; border-color: #16a34a; }
.btn-outline:hover { background: #16a34a; color: #fff; }
.btn-sm { padding: .4rem 1rem; font-size: 0.85rem; }
.btn-lg { padding: .8rem 2rem; font-size: 1.05rem; }
.mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* Hero */
.hero { background: linear-gradient(135deg, #1a1a2e 0%, #16a34a 100%); color: #fff; padding: 5rem 0; text-align: center; }
.hero h1 { font-size: 3rem; font-weight: 700; line-height: 1.2; margin-bottom: 1rem; }
.hero-sub { font-size: 1.15rem; opacity: .9; max-width: 600px; margin: 0 auto 2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 3rem; }
.hero-stats { display: flex; gap: 3rem; justify-content: center; flex-wrap: wrap; }
.stat { text-align: center; }
.stat strong { display: block; font-size: 2rem; }
.stat span { font-size: 0.9rem; opacity: .8; }

/* Sections */
.section { padding: 4rem 0; }
.section-alt { background: #f9fafb; }
.section-title { font-size: 2rem; font-weight: 700; text-align: center; margin-bottom: .5rem; }
.section-desc { text-align: center; color: #666; margin-bottom: 3rem; }

/* Grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
  .nav { display: none; }
  .nav.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: #fff; padding: 1rem; border-bottom: 1px solid #eee; }
  .mobile-toggle { display: block; }
}

/* Cards */
.card { background: #fff; border-radius: 12px; padding: 2rem; box-shadow: 0 2px 8px rgba(0,0,0,.08); transition: transform .2s; }
.card:hover { transform: translateY(-4px); }
.card-icon { font-size: 2rem; margin-bottom: 1rem; }
.card h3 { font-size: 1.15rem; margin-bottom: .75rem; }
.card p { color: #666; font-size: 0.95rem; }

/* Product Card */
.product-card { background: #fff; border-radius: 12px; padding: 1.5rem; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.product-img { width: 100%; height: 200px; object-fit: cover; border-radius: 8px; margin-bottom: 1rem; }
.product-card h4 { font-size: 1.05rem; margin-bottom: .5rem; }
.product-moq { color: #16a34a; font-size: 0.85rem; font-weight: 600; margin-bottom: 1rem; }

/* Feature */
.feature { margin-bottom: 1.5rem; }
.feature h4 { font-size: 1.05rem; margin-bottom: .5rem; }

/* CTA Section */
.section-cta { background: #1a1a2e; color: #fff; }
.section-cta h2 { font-size: 2rem; margin-bottom: 1rem; }
.section-cta .btn-primary { background: #16a34a; border-color: #16a34a; }

/* Footer */
.footer { background: #1a1a2e; color: #ccc; padding: 3rem 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; padding-bottom: 2rem; }
.footer-col h4 { color: #fff; margin-bottom: 1rem; font-size: 1rem; }
.footer-col a { display: block; color: #aaa; padding: .25rem 0; font-size: 0.9rem; }
.footer-col a:hover { color: #16a34a; }
.footer-bottom { border-top: 1px solid #333; padding: 1rem 0; text-align: center; font-size: 0.85rem; color: #888; }

/* WhatsApp Float - Right Center */
.wa-float { position: fixed; top: 50%; right: 16px; transform: translateY(-50%); background: transparent; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; z-index: 999; transition: transform .2s; box-shadow: 0 4px 12px rgba(0,0,0,.25); }
.wa-float:hover { transform: translateY(-50%) scale(1.1); }
.wa-float img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
@media (max-width: 600px) {
  .wa-float { width: 52px; height: 52px; right: 12px; }
}

/* Mobile Optimization */
@media (max-width: 600px) {
  .container { padding: 0 1rem; }
  .header-inner { height: 56px; }
  .logo { font-size: 1.1rem; }
  .btn-sm { padding: .35rem .8rem; font-size: 0.8rem; }
  .hero { padding: 3rem 0; }
  .hero h1 { font-size: 1.75rem; line-height: 1.3; }
  .hero-sub { font-size: 1rem; }
  .hero-stats { gap: 1.5rem; }
  .stat strong { font-size: 1.5rem; }
  .section { padding: 2.5rem 0; }
  .section-title { font-size: 1.5rem; }
  .section-desc { font-size: 0.9rem; margin-bottom: 2rem; }
  .card { padding: 1.5rem; }
  .card h3 { font-size: 1rem; }
  .card p { font-size: 0.85rem; }
  .product-card { padding: 1rem; }
  .product-img { height: 160px; }
  .product-card h4 { font-size: 0.95rem; }
  .btn-lg { padding: .7rem 1.5rem; font-size: 0.95rem; }
  .footer { padding: 2rem 0 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-col h4 { font-size: 0.95rem; }
  .footer-col a { font-size: 0.85rem; }
  .page-hero { padding: 2rem 0; }
  .page-hero h1 { font-size: 1.5rem; }
  .contact-form input, .contact-form textarea, .contact-form select { padding: .6rem; font-size: 0.9rem; }
  .info-box { padding: 1rem; }
  .process-steps { gap: 1rem; }
  .step { padding: 1rem; }
  .step-num { font-size: 1.5rem; }
  .specs-table th, .specs-table td { padding: .5rem .75rem; font-size: 0.85rem; }
  .price-tier { padding: .75rem; font-size: 0.85rem; }
  .feature h4 { font-size: 0.95rem; }
  .feature p { font-size: 0.85rem; }
  .factory-gallery { grid-template-columns: 1fr; gap: .75rem; }
  .factory-gallery img { height: 150px; }
}

/* Tablet Optimization */
@media (max-width: 900px) and (min-width: 601px) {
  .hero h1 { font-size: 2.5rem; }
  .section { padding: 3rem 0; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

/* Product Page */
.page-hero { background: #f0fdf4; padding: 3rem 0; text-align: center; }
.page-hero h1 { font-size: 2.2rem; margin-bottom: .5rem; }
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; padding: 4rem 0; }
@media (max-width: 800px) { .product-detail { grid-template-columns: 1fr; } }
.specs-table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.specs-table th, .specs-table td { padding: .75rem 1rem; border-bottom: 1px solid #eee; text-align: left; }
.specs-table th { width: 140px; color: #666; font-weight: 500; }
.price-tier { background: #f0fdf4; border-radius: 8px; padding: 1rem; margin: .5rem 0; display: flex; justify-content: space-between; }
.price-tier .qty { font-weight: 600; }
.price-tier .price { color: #16a34a; font-weight: 700; }

/* Contact Page */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; padding: 4rem 0; }
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; padding: .75rem; margin-bottom: 1rem; border: 1px solid #ddd; border-radius: 6px; font-family: inherit; font-size: 0.95rem; }
.contact-form textarea { min-height: 120px; resize: vertical; }
.info-box { background: #f0fdf4; padding: 1.5rem; border-radius: 8px; margin-bottom: 1rem; }
.info-box h4 { margin-bottom: .5rem; }

/* Factory Page */
.factory-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 2rem 0; }
.factory-gallery .placeholder { background: #eee; border-radius: 8px; height: 180px; display: flex; align-items: center; justify-content: center; font-size: 3rem; }
@media (max-width: 700px) { .factory-gallery { grid-template-columns: 1fr 1fr; } }

/* Custom Manufacturing */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin: 2rem 0; }
.step { text-align: center; padding: 1.5rem; background: #f0fdf4; border-radius: 12px; }
.step-num { font-size: 2rem; font-weight: 700; color: #16a34a; }
@media (max-width: 800px) { .process-steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .process-steps { grid-template-columns: 1fr; } }