:root{
  --bg:#0b1020; --bg2:#0f1730; --card:#141d3a; --line:#22305a;
  --txt:#eef2ff; --muted:#9aa7d0; --accent:#4f8cff; --accent2:#22d3ee;
  --green:#34d399; --red:#f87171; --radius:14px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--txt);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.center{text-align:center}

.site-header{position:sticky;top:0;z-index:50;background:rgba(11,16,32,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem}
.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:800;color:#061025}
.logo-text .accent{color:var(--accent2)}
.main-nav{display:flex;gap:26px}
.main-nav a{color:var(--muted);font-weight:500;font-size:.95rem;transition:color .2s}
.main-nav a:hover,.main-nav a.active{color:var(--txt)}
.nav-actions{display:flex;align-items:center;gap:14px}
.icon-link{color:var(--muted);font-size:.9rem;font-weight:500}
.icon-link:hover{color:var(--txt)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 20px;border-radius:10px;font-weight:600;font-size:.92rem;cursor:pointer;border:1px solid transparent;transition:.2s}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#061025}
.btn-primary:hover{filter:brightness(1.08)}
.btn-outline{border-color:var(--line);color:var(--txt)}
.btn-outline:hover{border-color:var(--accent)}
.btn-ghost{color:var(--muted);border-color:var(--line)}
.btn-ghost:hover{color:var(--txt);border-color:var(--accent)}
.btn-block{width:100%}

.hero{padding:72px 0 64px;background:radial-gradient(900px 400px at 80% -10%,rgba(79,140,255,.18),transparent),var(--bg)}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent2);font-weight:600;margin-bottom:14px}
.hero h1{font-size:3.1rem;line-height:1.08;font-weight:800;letter-spacing:-.02em}
.hero p{color:var(--muted);font-size:1.08rem;max-width:520px;margin-top:18px}
.hero-cta{display:flex;gap:14px;margin-top:30px}
.hero-stats{display:flex;gap:34px;margin-top:42px}
.hero-stats strong{display:block;font-size:1.5rem;font-weight:800}
.hero-stats span{color:var(--muted);font-size:.85rem}
.hero-art{display:flex;justify-content:flex-end}
.hero-card{width:100%;max-width:360px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px}
.hero-card-top{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted);margin-bottom:16px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green)}
.dot.live{box-shadow:0 0 0 4px rgba(52,211,153,.2)}
.hero-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.hero-list li{display:flex;justify-content:space-between;padding:12px 14px;background:var(--bg2);border-radius:10px;font-size:.92rem}
.hero-list .up{color:var(--green);font-weight:700}

.section{padding:72px 0}
.section-head{max-width:640px;margin:0 auto 44px;text-align:center}
.section-head h2{font-size:2rem;font-weight:800;letter-spacing:-.01em}
.section-head p{color:var(--muted);margin-top:10px}
.section-head.light h2{color:#fff}

.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.2s}
.feature-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.feature-icon{width:44px;height:44px;border-radius:11px;background:rgba(79,140,255,.15);color:var(--accent2);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:16px}
.feature-card h3{font-size:1.1rem;margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:.92rem}

.band{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.cat-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.cat-thumb{height:120px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.3rem;color:#061025}
.c1{background:linear-gradient(135deg,#60a5fa,#34d399)}
.c2{background:linear-gradient(135deg,#f87171,#fbbf24)}
.c3{background:linear-gradient(135deg,#fbbf24,#f59e0b)}
.c4{background:linear-gradient(135deg,#34d399,#22d3ee)}
.c5{background:linear-gradient(135deg,#a78bfa,#4f8cff)}
.c6{background:linear-gradient(135deg,#22d3ee,#4f8cff)}
.cat-card h4{padding:16px 18px 4px;font-size:1.05rem}
.cat-card p{padding:0 18px 18px;color:var(--muted);font-size:.88rem}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#061025;font-weight:800;margin-bottom:14px}
.step h4{margin-bottom:6px}
.step p{color:var(--muted);font-size:.9rem}

.cta-strip{background:linear-gradient(135deg,rgba(79,140,255,.18),rgba(34,211,238,.12));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;padding:48px 24px;gap:24px}
.cta-inner h2{font-size:1.6rem;font-weight:800}
.cta-inner p{color:var(--muted);margin-top:6px}

.page-head{padding:56px 0 8px;background:radial-gradient(600px 260px at 50% -20%,rgba(79,140,255,.16),transparent)}
.page-head h1{font-size:2.4rem;font-weight:800;letter-spacing:-.01em}
.page-head p{color:var(--muted);margin-top:10px;max-width:620px}

.layout-two{display:grid;grid-template-columns:260px 1fr;gap:32px}
.filters{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;height:fit-content}
.filters h3{font-size:1.1rem;margin-bottom:16px}
.filter-group{margin-bottom:20px}
.filter-group h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:10px}
.filter-group label{display:flex;align-items:center;gap:8px;font-size:.92rem;color:var(--txt);margin-bottom:8px;cursor:pointer}
.range{width:100%}
.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:.78rem;margin-top:6px}

.catalog-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.result-count{color:var(--muted);font-size:.92rem}
.sort label{color:var(--muted);font-size:.88rem;margin-right:8px}
.sort select{background:var(--card);border:1px solid var(--line);color:var(--txt);padding:8px 10px;border-radius:8px}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.product-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.product-thumb{height:150px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem;color:#061025;text-align:center;padding:10px}
.product-body{padding:16px}
.product-body .cat{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent2)}
.product-body h4{font-size:1rem;margin:6px 0}
.product-body .meta{color:var(--muted);font-size:.82rem;margin-bottom:10px}
.price-row{display:flex;justify-content:space-between;align-items:center}
.price{font-weight:800;font-size:1.05rem}
.price small{color:var(--muted);font-weight:500;font-size:.78rem;text-decoration:line-through;margin-left:6px}
.add-btn{background:var(--accent);color:#061025;border:none;padding:8px 14px;border-radius:8px;font-weight:600;cursor:pointer;font-size:.85rem}
.add-btn:hover{filter:brightness(1.1)}

.supplier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.supplier-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s}
.supplier-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.supplier-badge{display:inline-block;font-size:.72rem;font-weight:600;padding:4px 10px;border-radius:20px;background:rgba(52,211,153,.15);color:var(--green);margin-bottom:12px}
.supplier-card h4{font-size:1.1rem;margin-bottom:6px}
.supplier-card .loc{color:var(--muted);font-size:.86rem;margin-bottom:10px}
.supplier-card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.supplier-card .tag{font-size:.74rem;padding:3px 9px;border-radius:6px;background:var(--bg2);border:1px solid var(--line);color:var(--muted)}

.about-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:start}
.about-text h2{font-size:1.6rem;margin-bottom:14px}
.about-text p{color:var(--muted);margin-bottom:14px}
.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center}
.stat-box strong{display:block;font-size:1.7rem;font-weight:800}
.stat-box span{color:var(--muted);font-size:.85rem}

.contact-form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;background:var(--bg2);border:1px solid var(--line);color:var(--txt);padding:11px 13px;border-radius:9px;font-family:inherit;font-size:.92rem}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.form-note{color:var(--green);font-size:.88rem;margin-top:10px;min-height:18px}
.contact-info{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;height:fit-content}
.contact-info h3{font-size:1.05rem;margin-bottom:10px}
.contact-info p{color:var(--muted);font-size:.9rem;margin-bottom:8px}
.contact-info strong{color:var(--txt)}
.contact-info hr{border:none;border-top:1px solid var(--line);margin:18px 0}

.cart-wrap{max-width:860px;margin:0 auto}
.cart-table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.cart-table th,.cart-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.cart-table th{background:var(--bg2);font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.cart-table td .qty{display:inline-flex;align-items:center;gap:8px}
.cart-table td .qty button{width:26px;height:26px;border-radius:6px;border:1px solid var(--line);background:var(--bg2);color:var(--txt);cursor:pointer}
.cart-remove{color:var(--red);cursor:pointer;background:none;border:none;font-size:.85rem}
.cart-summary{margin:20px 0;text-align:right;font-size:1.05rem}
.cart-summary .total{font-weight:800;font-size:1.3rem}

.auth-card{max-width:420px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.auth-switch{text-align:center;margin-top:16px;color:var(--muted);font-size:.9rem}
.auth-switch a{color:var(--accent2)}

.big404{font-size:6rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}

.site-footer{background:var(--bg2);border-top:1px solid var(--line);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.logo-foot{margin-bottom:14px}
.foot-tag{color:var(--muted);font-size:.88rem}
.footer-grid h5{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}
.footer-grid a{display:block;color:var(--txt);font-size:.9rem;margin-bottom:8px;transition:color .2s}
.footer-grid a:hover{color:var(--accent2)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:36px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:.82rem}

@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-art{justify-content:flex-start}
  .feature-grid,.cat-grid,.product-grid,.supplier-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .layout-two{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-inner{flex-direction:column;text-align:center}
}
@media (max-width:600px){
  .main-nav{display:none}
  .hero h1{font-size:2.2rem}
  .feature-grid,.cat-grid,.product-grid,.supplier-grid,.steps,.about-stats,.footer-grid,.form-row{grid-template-columns:1fr}
  .hero-stats{flex-wrap:wrap;gap:20px}
}