:root {
    --bg-color: #0f1115;
    --surface-color: #1a1d24;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --accent: #00e5ff;
    --accent-hover: #00b3cc;
    --danger: #ff1744;
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
body { background-color: var(--bg-color); color: var(--text-main); line-height: 1.6; display: flex; flex-direction: column; min-height: 100vh; }
header { background: var(--surface-color); padding: 20px; border-bottom: 1px solid #2a2d35; position: sticky; top: 0; z-index: 100; }
.nav-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.logo { font-size: 24px; font-weight: bold; color: var(--accent); text-decoration: none; margin-bottom: 10px; }
nav { display: flex; gap: 20px; flex-wrap: wrap; }
nav a { color: var(--text-main); text-decoration: none; font-size: 15px; transition: color 0.3s; }
nav a:hover, nav a.active { color: var(--accent); }
.main-container { max-width: 1200px; margin: 40px auto; padding: 0 20px; flex-grow: 1; width: 100%; }
.hero { background: linear-gradient(rgba(15,17,21,0.8), rgba(15,17,21,0.9)), #1a1d24; padding: 80px 20px; text-align: center; border-radius: 12px; margin-bottom: 40px; border: 1px solid #2a2d35; }
.hero h1 { font-size: 42px; margin-bottom: 20px; color: #fff; }
.hero p { font-size: 18px; color: var(--text-muted); margin-bottom: 30px; max-width: 800px; margin-left: auto; margin-right: auto; }
.btn { display: inline-block; background: var(--accent); color: #000; padding: 15px 30px; border-radius: 8px; text-decoration: none; font-weight: bold; transition: 0.3s; text-align: center; border: none; cursor: pointer; }
.btn:hover { background: var(--accent-hover); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 25px; margin-bottom: 40px; }
.card { background: var(--surface-color); border: 1px solid #2a2d35; border-radius: 12px; padding: 20px; display: flex; flex-direction: column; transition: transform 0.3s, border-color 0.3s; }
.card:hover { transform: translateY(-5px); border-color: var(--accent); }
.card-img { width: 100%; height: 220px; object-fit: cover; border-radius: 8px; margin-bottom: 15px; background: #222; display: block; }
.card-placeholder { width: 100%; height: 220px; background: #222; border-radius: 8px; margin-bottom: 15px; display: flex; align-items: center; justify-content: center; color: #555; font-size: 14px; text-align: center; padding: 10px; }
.card h3 { margin-bottom: 10px; font-size: 20px; flex-grow: 1; }
.price { font-size: 22px; color: var(--accent); font-weight: bold; margin-bottom: 15px; }
.seo-text-block { background: var(--surface-color); padding: 40px; border-radius: 12px; border: 1px solid #2a2d35; margin-top: 50px; }
.seo-text-block h2 { color: var(--accent); margin-bottom: 20px; font-size: 28px; }
.seo-text-block h3 { color: #fff; margin-top: 25px; margin-bottom: 15px; font-size: 22px; }
.seo-text-block p { margin-bottom: 15px; text-align: justify; color: var(--text-muted); font-size: 16px; line-height: 1.8; }
.seo-text-block ul { margin-bottom: 15px; padding-left: 20px; color: var(--text-muted); line-height: 1.8; }
.seo-text-block li { margin-bottom: 8px; }
.product-detail { display: flex; gap: 40px; flex-wrap: wrap; margin-bottom: 40px; }
.product-gallery { flex: 1; min-width: 300px; background: #222; min-height: 400px; border-radius: 12px; display: flex; align-items: center; justify-content: center; border: 1px solid #2a2d35; color: #555; text-align:center; padding:20px; flex-direction:column; overflow: hidden; }
.product-gallery img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 8px; }
.product-info { flex: 1; min-width: 300px; }
.product-info h1 { font-size: 36px; margin-bottom: 15px; color: #fff; }
.product-info .desc { color: var(--text-muted); font-size: 18px; margin-bottom: 25px; line-height: 1.6; text-align: justify; }
.buy-options { background: var(--surface-color); padding: 25px; border-radius: 12px; border: 1px solid #2a2d35; margin-bottom: 25px; }
.buy-options label { display: block; margin-bottom: 15px; font-size: 18px; cursor: pointer; }
.buy-options input { margin-right: 10px; transform: scale(1.2); cursor: pointer; }
footer { background: var(--surface-color); padding: 40px 20px; margin-top: auto; border-top: 1px solid #2a2d35; }
.footer-content { max-width: 1200px; margin: 0 auto; text-align: center; }
.disclaimer { background: rgba(255, 23, 68, 0.1); border: 1px solid var(--danger); color: var(--danger); padding: 20px; border-radius: 8px; margin-bottom: 30px; font-weight: 500; font-size: 14px; text-align: left; }
.floating-contacts { position: fixed; bottom: 30px; right: 30px; display: flex; flex-direction: column; gap: 15px; z-index: 1000; }
.float-btn { width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--surface-color); border: 2px solid var(--accent); color: var(--accent); text-decoration: none; font-size: 28px; box-shadow: 0 4px 15px rgba(0,229,255,0.2); transition: 0.3s; }
.float-btn:hover { background: var(--accent); color: #000; transform: scale(1.1); }
.breadcrumb { margin-bottom: 20px; font-size: 14px; display:inline-block; }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb span { color: var(--text-muted); margin: 0 10px; }
.article-content { font-size: 18px; line-height: 1.8; color: var(--text-muted); text-align: justify; margin-bottom: 40px; }
.article-content h1 { color: #fff; margin-bottom: 25px; font-size: 36px; line-height: 1.3; }
.article-list { list-style: none; }
.article-list li { margin-bottom: 20px; background: var(--surface-color); padding: 20px; border-radius: 12px; border: 1px solid #2a2d35; }
.article-list a { font-size: 20px; color: var(--accent); text-decoration: none; font-weight: bold; display: block; margin-bottom: 10px; }
.article-list a:hover { text-decoration: underline; }
@media (max-width: 768px) { 
    .hero h1 { font-size: 32px; } 
    .nav-container { flex-direction: column; align-items: flex-start; } 
    nav { flex-direction: column; gap: 10px; width: 100%; }
    .product-detail { flex-direction: column; }
}