* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', Arial, sans-serif; color: #1e293b; background: #ffffff; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.narrow { max-width: 850px; }
.center { text-align: center; }
.section { padding: 90px 0; }
.section-light { background: #f8fafc; }
.section-dark { background: #0f172a; color: #ffffff; }
.section-accent { background: #eff6ff; }
.section-title { text-align: center; margin-bottom: 45px; }
.section-title.light h2, .section-dark h2 { color: #ffffff; }
h1, h2, h3 { line-height: 1.2; }
h1 { font-size: 3.2rem; margin-bottom: 20px; }
h2 { font-size: 2.2rem; margin-bottom: 18px; color: #0f172a; }
h3 { font-size: 1.25rem; margin-bottom: 12px; color: #0f172a; }
p { margin-bottom: 16px; }
ul { padding-left: 20px; margin-bottom: 16px; }
li { margin-bottom: 8px; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(15, 23, 42, 0.96); backdrop-filter: blur(10px); color: #ffffff; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.header-container { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 78px; }
.logo { display: flex; align-items: center; gap: 12px; font-size: 1.5rem; font-weight: 800; color: #ffffff; }
.logo img { height: 50px; width: auto; }
.nav { display: flex; gap: 24px; align-items: center; }
.nav a { color: #e2e8f0; font-size: 0.95rem; transition: 0.3s; }
.nav a:hover, .nav a.active { color: #ffffff; }
.menu-toggle { display: none; background: transparent; color: #ffffff; font-size: 2rem; border: none; cursor: pointer; }
.btn { display: inline-block; background: #2563eb; color: #ffffff; padding: 14px 24px; border-radius: 10px; font-weight: 700; transition: 0.3s ease; border: none; cursor: pointer; }
.btn:hover { background: #1d4ed8; }
.btn-secondary { background: transparent; border: 2px solid #ffffff; }
.btn-secondary:hover { background: #ffffff; color: #0f172a; }
.btn-header { white-space: nowrap; }
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; background: linear-gradient(135deg, rgba(2, 6, 23, 0.8), rgba(15, 23, 42, 0.65)); color: #ffffff; }
.page-hero { position: relative; min-height: 52vh; display: flex; align-items: center; background: linear-gradient(135deg, rgba(2, 6, 23, 0.8), rgba(15, 23, 42, 0.65)); color: #ffffff; }
.overlay { position: absolute; inset: 0; }
.hero-content, .page-hero-content { position: relative; z-index: 2; }
.hero-text, .page-hero-text { max-width: 760px; }
.hero-kicker, .page-kicker { text-transform: uppercase; letter-spacing: 1px; font-size: 0.9rem; color: #cbd5e1; margin-bottom: 15px; }
.hero-description { font-size: 1.1rem; color: #e2e8f0; }
.hero-message { font-size: 1.35rem; font-weight: 700; color: #ffffff; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 25px; }
.big-quote { font-size: 1.5rem; font-weight: 700; color: #1d4ed8; margin-top: 25px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: #ffffff; border: 1px solid #e5e7eb; border-radius: 16px; padding: 28px; box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 35px rgba(15, 23, 42, 0.1); }
.two-columns { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.image-box img { width: 100%; height: 420px; object-fit: cover; border-radius: 18px; }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-card { background: #ffffff; border-radius: 16px; overflow: hidden; box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08); transition: transform 0.3s ease; }
.product-card:hover { transform: translateY(-6px); }
.product-card img { width: 100%; height: 220px; object-fit: contain; background: #f8fafc; padding: 20px; }
.product-card h3, .product-card p { padding-left: 20px; padding-right: 20px; }
.product-card h3 { padding-top: 20px; }
.product-card p { padding-bottom: 20px; color: #64748b; }
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.gallery img { width: 100%; height: 240px; object-fit: cover; border-radius: 14px; transition: transform 0.3s ease; }
.gallery img:hover { transform: scale(1.03); }
.advantages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.advantage { background: rgba(255, 255, 255, 0.08); padding: 20px; border-radius: 14px; border: 1px solid rgba(255, 255, 255, 0.12); }
.faq-item { background: #ffffff; border-radius: 14px; margin-bottom: 16px; border: 1px solid #e2e8f0; overflow: hidden; }
.faq-question { width: 100%; text-align: left; padding: 20px; border: none; background: #ffffff; font-size: 1rem; font-weight: 700; cursor: pointer; color: #0f172a; display: flex; justify-content: space-between; align-items: center; }
.faq-question::after { content: "+"; font-size: 1.5rem; color: #2563eb; }
.faq-item.active .faq-question::after { content: "−"; }
.faq-answer { display: none; padding: 0 20px 20px; color: #475569; }
.faq-item.active .faq-answer { display: block; }
.contact-section { background: #ffffff; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; align-items: start; }
.contact-box { background: #f8fafc; padding: 24px; border-radius: 14px; border: 1px solid #e2e8f0; }
.contact-form { display: grid; gap: 14px; }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; padding: 15px 16px; border: 1px solid #cbd5e1; border-radius: 10px; font-size: 1rem; }
.contact-form textarea { min-height: 150px; resize: vertical; }
.site-footer { background: #020617; color: #cbd5e1; padding: 50px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col h4 { color: #ffffff; margin-bottom: 20px; }
.footer-col p, .footer-col a { color: #94a3b8; margin-bottom: 10px; display: block; }
.footer-col a:hover { color: #ffffff; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 25px; text-align: center; color: #64748b; }
.floating-call { position: fixed; bottom: 20px; right: 20px; z-index: 2000; background: #2563eb; color: #ffffff; padding: 16px 20px; border-radius: 999px; font-weight: 700; box-shadow: 0 12px 24px rgba(37, 99, 235, 0.35); }
.floating-call:hover { background: #1d4ed8; }
@media (max-width: 1000px) { .cards, .advantages, .gallery, .products-grid { grid-template-columns: repeat(2, 1fr); } .brand-grid, .contact-grid, .two-columns, .footer-grid { grid-template-columns: 1fr; } }
@media (max-width: 820px) { .menu-toggle { display: block; } .nav { display: none; position: absolute; top: 78px; left: 0; width: 100%; background: #0f172a; flex-direction: column; padding: 20px; gap: 14px; } .nav.active { display: flex; } .btn-header { display: none; } h1 { font-size: 2.4rem; } h2 { font-size: 1.8rem; } }
@media (max-width: 640px) { .cards, .advantages, .gallery, .products-grid { grid-template-columns: 1fr; } .section { padding: 70px 0; } .hero { min-height: 85vh; } .page-hero { min-height: 42vh; } .hero-message { font-size: 1.15rem; } .floating-call { bottom: 16px; right: 16px; padding: 14px 16px; } .logo img { height: 40px; } }