/* Мега Маркетплейс — чёрно-оранжевая сетка лендинга */
:root {
  --color-bg: #0a0a0a;
  --color-surface: #141414;
  --color-accent: #f97316;
  --color-accent-hover: #ea580c;
  --color-text: #fafafa;
  --color-muted: #a1a1aa;
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--font-main);background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--color-accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--color-accent-hover)}
img{max-width:100%;height:auto;display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

.header{background:var(--color-surface);padding:16px 0;position:sticky;top:0;z-index:100;box-shadow:var(--shadow);border-bottom:1px solid rgba(249,115,22,.15)}
.header .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.logo{font-size:1.5rem;font-weight:700;color:var(--color-text)}
.nav{display:flex;gap:24px;flex-wrap:wrap}
.nav a{color:var(--color-muted);font-weight:500}
.nav a:hover{color:var(--color-accent)}

.hero{padding:60px 0 80px;text-align:center}
.hero h1{font-size:clamp(2rem,5vw,3rem);margin-bottom:16px;font-weight:700}
.hero p{font-size:1.125rem;color:var(--color-muted);max-width:600px;margin:0 auto 32px}
.btn{display:inline-block;padding:14px 28px;background:var(--color-accent);color:#fff;border-radius:var(--radius);font-weight:600;transition:background .2s}
.btn:hover{background:var(--color-accent-hover)}

.section{padding:48px 0}
.section-title{font-size:1.75rem;margin-bottom:16px;text-align:center}
.section-desc{text-align:center;color:var(--color-muted);max-width:700px;margin:0 auto 32px}

.products{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.product-card{background:var(--color-surface);border:1px solid rgba(249,115,22,.1);border-radius:var(--radius);padding:24px;transition:transform .2s,box-shadow .2s,border-color .2s}
.product-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(249,115,22,.15);border-color:rgba(249,115,22,.3)}
.product-card h3{font-size:1.125rem;margin-bottom:8px}
.product-card p{color:var(--color-muted);font-size:.9375rem;margin-bottom:16px}
.product-card .price{font-size:1.25rem;font-weight:700;color:var(--color-accent)}
.product-tag{display:inline-block;font-size:.75rem;color:var(--color-accent);background:rgba(249,115,22,.15);padding:4px 10px;border-radius:6px;margin-bottom:12px}

.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.feature{text-align:center;padding:24px}
.feature-icon{font-size:2.5rem;margin-bottom:12px}
.feature h3{font-size:1.125rem;margin-bottom:8px}
.feature p{color:var(--color-muted);font-size:.9375rem}

.about-content,.page-block{max-width:700px;margin:0 auto}
.about-content h3,.page-block h3{font-size:1.25rem;margin:24px 0 12px}
.about-content p,.page-block p{color:var(--color-muted);margin-bottom:12px}
.about-content ul,.page-block ul{margin:12px 0 12px 24px}
.about-content li,.page-block li{margin-bottom:6px}

.contact-info{background:var(--color-surface);padding:24px;border-radius:var(--radius);margin-top:24px;max-width:600px;margin-left:auto;margin-right:auto}
.contact-info h3{font-size:1.125rem;margin-bottom:12px}
.contact-info p{margin-bottom:8px;color:var(--color-muted)}

.footer{margin-top:auto;background:var(--color-surface);padding:40px 0 24px}
.footer .container{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;margin-bottom:32px}
.footer h4{font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-muted);margin-bottom:12px}
.footer ul{list-style:none}
.footer li{margin-bottom:8px}
.footer a{color:var(--color-muted)}
.footer-bottom{text-align:center;padding-top:24px;border-top:1px solid rgba(249,115,22,.2);color:var(--color-muted);font-size:.875rem;grid-column:1/-1}

@media(max-width:640px){
  .hero{padding:40px 0 60px}
  .section{padding:32px 0}
  .products{grid-template-columns:1fr}
  .nav{gap:12px}
}