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

:root {
  --green: #2E7D5E;
  --green-light: #4CAF82;
  --dark: #1a1a1a;
  --radius: 16px;
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #222; background: #fff; line-height: 1.6; }

/* NAV */
header { position: sticky; top: 0; background: rgba(255,255,255,0.96); backdrop-filter: blur(10px); border-bottom: 1px solid #eee; z-index: 100; }
nav { max-width: 1200px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 22px; font-weight: 800; color: var(--dark); text-decoration: none; }
.logo span { color: var(--green); }
.nav-links { display: flex; gap: 6px; flex-wrap: wrap; }
.nav-links a { text-decoration: none; font-weight: 600; font-size: 13px; color: #555; padding: 6px 14px; border-radius: 8px; transition: all .2s; }
.nav-links a:hover, .nav-links a.active { background: var(--green); color: #fff; }

/* HERO */
.hero { position: relative; min-height: 540px; background: center/cover no-repeat; display: flex; align-items: center; padding: 60px 24px; }
.hero::before { content:''; position:absolute; inset:0; background: linear-gradient(135deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.3) 70%, transparent 100%); }
.hero-content { position: relative; max-width: 620px; }
.hero h1 { font-size: clamp(30px, 5vw, 56px); font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 16px; }
.hero p { font-size: 18px; color: rgba(255,255,255,0.88); max-width: 500px; line-height: 1.7; }

/* FEATURE CARDS */
.features { display: grid; grid-template-columns: repeat(3,1fr); }
.feature-card { padding: 44px 32px; color: #fff; text-align: center; }
.feature-card:nth-child(1) { background: linear-gradient(135deg, #2E7D5E, #4CAF82); }
.feature-card:nth-child(2) { background: linear-gradient(135deg, #1565C0, #42A5F5); }
.feature-card:nth-child(3) { background: linear-gradient(135deg, #6A1B9A, #AB47BC); }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.feature-card p { font-size: 14px; opacity: 0.92; line-height: 1.65; }

/* BROWSE */
.browse-head { text-align: center; padding: 64px 24px 40px; }
.browse-head h2 { font-size: clamp(22px,3.5vw,36px); font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.browse-head p { font-size: 17px; color: #666; }

/* PRODUCTS GRID */
.products-grid { max-width: 1100px; margin: 0 auto; padding: 0 24px 60px; display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.product-card { background: #f8f9fa; border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s; }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.1); }
.product-card img { width: 100%; aspect-ratio: 1; object-fit: contain; padding: 24px; background: #fff; }
.product-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.product-card h3 { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 10px; line-height: 1.4; }
.product-card p { font-size: 13px; color: #666; flex: 1; margin-bottom: 16px; line-height: 1.5; }
.btn-buy { display: block; text-align: center; background: linear-gradient(135deg,#FF9900,#FFAD33); color: #111; font-weight: 700; font-size: 15px; padding: 12px 20px; border-radius: 50px; text-decoration: none; transition: transform .2s, box-shadow .2s; box-shadow: 0 4px 12px rgba(255,153,0,.35); }
.btn-buy:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255,153,0,.5); }

/* VIDEO SECTION */
.video-section { background: #000; padding: 70px 24px; text-align: center; }
.video-section h2 { font-size: clamp(22px,3vw,36px); font-weight: 800; color: #fff; margin-bottom: 10px; }
.video-section p { color: rgba(255,255,255,0.8); margin-bottom: 30px; font-size: 16px; max-width: 700px; margin-left: auto; margin-right: auto; }
.video-wrap { max-width: 800px; margin: 0 auto 30px; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9; }
.video-wrap iframe { width: 100%; height: 100%; border: none; }

/* COMFORT SECTION */
.comfort-section { max-width: 900px; margin: 0 auto; padding: 70px 24px; text-align: center; }
.comfort-section h2 { font-size: clamp(22px,3vw,36px); font-weight: 800; color: var(--dark); margin-bottom: 14px; }
.comfort-section p { font-size: 17px; color: #666; }

/* FAQ */
.faq-section { max-width: 860px; margin: 0 auto; padding: 20px 24px 70px; }
.faq-section h2 { font-size: clamp(22px,3vw,34px); font-weight: 800; color: var(--dark); margin-bottom: 30px; text-align: center; }
.faq-item { border: 1px solid #e5e7eb; border-radius: 14px; margin-bottom: 12px; overflow: hidden; }
.faq-q { width: 100%; text-align: left; padding: 18px 22px; font-size: 16px; font-weight: 600; color: #fff; border: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-item:nth-child(1) .faq-q { background: linear-gradient(135deg,#2E7D5E,#4CAF82); }
.faq-item:nth-child(2) .faq-q { background: linear-gradient(135deg,#1565C0,#42A5F5); }
.faq-item:nth-child(3) .faq-q { background: linear-gradient(135deg,#6A1B9A,#AB47BC); }
.faq-item:nth-child(4) .faq-q { background: linear-gradient(135deg,#E65100,#FFA726); }
.faq-item:nth-child(5) .faq-q { background: linear-gradient(135deg,#00695C,#26A69A); }
.faq-item:nth-child(6) .faq-q { background: linear-gradient(135deg,#880E4F,#F06292); }
.faq-item:nth-child(7) .faq-q { background: linear-gradient(135deg,#1A237E,#5C6BC0); }
.faq-item:nth-child(8) .faq-q { background: linear-gradient(135deg,#33691E,#8BC34A); }
.faq-item:nth-child(n+9) .faq-q { background: linear-gradient(135deg,#37474F,#90A4AE); }
.faq-q::after { content:'+'; font-size:22px; font-weight:300; }
.faq-item.open .faq-q::after { content:'−'; }
.faq-a { display:none; padding:18px 22px; font-size:15px; color:#444; background:#fafbfc; border-top:1px solid #e5e7eb; line-height:1.7; }
.faq-item.open .faq-a { display:block; }

/* FEATURED PRODUCT */
.featured-section { display: grid; grid-template-columns: 1fr 1fr; gap: 0; min-height: 400px; }
.featured-img { background: center/cover no-repeat; min-height: 400px; }
.featured-info { background: var(--dark); padding: 60px 50px; display: flex; flex-direction: column; justify-content: center; }
.featured-info h2 { font-size: 14px; font-weight: 700; color: var(--green-light); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.featured-info h3 { font-size: clamp(24px,3vw,38px); font-weight: 800; color: #fff; margin-bottom: 16px; line-height: 1.3; }
.featured-info p { color: rgba(255,255,255,0.75); font-size: 16px; margin-bottom: 28px; line-height: 1.7; }

/* TESTIMONIALS */
.testimonials-section { padding: 70px 24px; background: #f5f7f5; }
.testimonials-section h2 { text-align: center; font-size: clamp(22px,3vw,34px); font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.testimonials-section .sub { text-align: center; color: #666; font-size: 16px; margin-bottom: 40px; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; max-width: 1100px; margin: 0 auto; }
.testimonial-card { background: #fff; border-radius: 20px; padding: 30px; box-shadow: 0 4px 20px rgba(0,0,0,0.07); }
.testimonial-card .stars { color: #FFB800; font-size: 18px; margin-bottom: 14px; }
.testimonial-card .quote { font-size: 15px; color: #444; line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.testimonial-card .author { font-weight: 700; color: var(--dark); font-size: 14px; }
.testimonial-card .location { font-size: 12px; color: #999; }

/* FOOTER */
footer { background: var(--dark); color: #888; text-align: center; padding: 32px 24px; }
footer p { font-size: 14px; margin-bottom: 6px; }
.disclaimer { font-size: 12px; color: #555; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .products-grid { grid-template-columns: repeat(2,1fr); }
  .featured-section { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .features { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  nav { flex-direction: column; gap: 10px; }
  .nav-links { justify-content: center; }
  .hero { min-height: 400px; }
  .featured-info { padding: 40px 24px; }
}