:root{--bg:#0d1117;--bg-soft:#161b22;--card:#1c2129;--border:#2d333b;--text:#e6edf3;--text-muted:#8b949e;--accent:#f0b90b;--green:#3fb950;--red:#ff6b6b;--radius:14px;--shadow:0 10px 30px rgba(0,0,0,.35)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Segoe UI,system-ui,-apple-system,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:1100px;margin:0 auto;padding:0 20px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(13,17,23,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.nav{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{font-weight:800;font-size:1.15rem;letter-spacing:.5px}.logo span{color:var(--accent)}.nav-links{display:flex;gap:24px;list-style:none;align-items:center}.nav-links a{color:var(--text-muted);font-size:.95rem;transition:color .2s}.nav-links a:hover{color:var(--text)}.btn{display:inline-block;padding:14px 28px;border-radius:10px;font-weight:700;font-size:1rem;border:none;cursor:pointer;transition:transform .1s,box-shadow .2s,background .2s;font-family:inherit;text-align:center}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--accent);color:#17110a;box-shadow:0 6px 20px rgba(240,185,11,.35)}.btn-primary:hover{background:#ffd33d}.btn-outline{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}.btn-dark{background:var(--card);color:var(--text)!important;border:1px solid var(--border)}.btn-block{display:block;width:100%}.nav-user{display:flex;align-items:center;gap:14px}.user-chip{color:var(--text-muted);font-size:.9rem}.owner-badge{display:inline-flex;align-items:center;gap:4px;background:linear-gradient(135deg,rgba(240,185,11,.28),rgba(255,140,0,.18));border:1px solid rgba(255,170,0,.7);color:#ffc94d;padding:4px 12px;border-radius:30px;font-size:.78rem;font-weight:800;letter-spacing:.3px;white-space:nowrap}.buyer-badge{background:rgba(63,185,80,.15);border:1px solid rgba(63,185,80,.5);color:var(--green);border-radius:30px}.buyer-badge,.seller-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;font-size:.78rem;font-weight:700;letter-spacing:.3px;white-space:nowrap}.seller-badge{background:rgba(255,149,0,.15);border:1px solid rgba(255,149,0,.55);color:#ffa733;border-radius:30px}.admin-badge{display:inline-flex;align-items:center;gap:4px;background:rgba(88,166,255,.15);border:1px solid rgba(88,166,255,.4);color:#58a6ff;padding:4px 12px;border-radius:30px;font-size:.78rem;font-weight:700;letter-spacing:.3px;white-space:nowrap}.burger{display:none;background:none;border:1px solid var(--border);color:var(--text);width:42px;height:42px;border-radius:8px;cursor:pointer}.burger span{display:block;width:20px;height:2px;background:var(--text);margin:4px auto}.hero{text-align:center;padding:100px 20px 80px;background:radial-gradient(ellipse at 40% 0,rgba(240,185,11,.14),transparent 55%),radial-gradient(ellipse at 70% 30%,hsla(0,100%,71%,.1),transparent 50%),var(--bg);border-bottom:1px solid var(--border)}.hero-tag{display:inline-block;background:rgba(240,185,11,.12);color:var(--accent);border:1px solid rgba(240,185,11,.35);padding:5px 14px;border-radius:40px;font-size:.8rem;font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:24px}.hero h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:800;line-height:1.15;margin-bottom:18px}.hero h1 span{color:var(--accent)}.hero p.sub{font-size:clamp(1rem,2vw,1.2rem);color:var(--text-muted);max-width:640px;margin:0 auto 34px}.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}section{padding:80px 0}.sec-title{text-align:center;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;margin-bottom:12px}.sec-sub{text-align:center;color:var(--text-muted);max-width:600px;margin:0 auto 40px}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:24px;gap:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;display:flex;flex-direction:column;transition:transform .2s,border-color .2s,box-shadow .2s}.card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:var(--shadow)}.card-badge{align-self:flex-start;background:rgba(240,185,11,.12);color:var(--accent);border:1px solid rgba(240,185,11,.3);padding:3px 12px;border-radius:30px;font-size:.72rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase;margin-bottom:16px}.card h3{font-size:1.35rem;margin-bottom:10px}.card p{color:var(--text-muted);font-size:.95rem;flex-grow:1}.card-price{font-size:1.8rem;font-weight:800;margin:18px 0 4px}.card-price small{font-size:.9rem;color:var(--text-muted);font-weight:400}.card-features{list-style:none;margin:14px 0 22px}.card-features li{padding:6px 0 6px 26px;position:relative;font-size:.9rem}.card-features li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}.card .btn{margin-top:auto}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:24px;gap:24px}.step{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px}.step-num{width:44px;height:44px;display:grid;place-items:center;background:var(--accent);color:#17110a;border-radius:12px;font-weight:800;font-size:1.2rem;margin-bottom:16px}.step h4{margin-bottom:8px}.step p{color:var(--text-muted);font-size:.92rem}.faq-item{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}.faq-q{width:100%;text-align:left;background:none;border:none;color:var(--text);padding:18px 22px;font-size:1rem;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.faq-q:after{content:"+";font-size:1.4rem;color:var(--accent)}.faq-a{padding:0 22px 18px;color:var(--text-muted);font-size:.94rem;display:none}.faq-item.open .faq-a{display:block}.cta-banner{background:linear-gradient(120deg,var(--accent),#e0a100);color:#17110a;text-align:center;padding:64px 20px;border-radius:var(--radius);margin:40px 0}.cta-banner h2{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:14px}.cta-banner p{opacity:.9;margin-bottom:24px}.cta-banner .btn-dark{background:#17110a;color:var(--accent)!important;border:none}.page-hero{padding:60px 20px 40px;text-align:center;border-bottom:1px solid var(--border)}.page-hero h1{font-size:clamp(2rem,4vw,2.8rem);margin-bottom:12px}.page-hero p{color:var(--text-muted);max-width:620px;margin:0 auto}.breadcrumb{color:var(--text-muted);font-size:.85rem;margin-bottom:14px}.breadcrumb a{color:var(--accent)}.product-detail{display:grid;grid-template-columns:1fr 1fr;grid-gap:40px;gap:40px;align-items:start}.buy-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;position:-webkit-sticky;position:sticky;top:84px}.buy-box h2{font-size:1.7rem;margin-bottom:6px}.buy-box .price{font-size:2.4rem;font-weight:800;margin:12px 0 20px}.buy-box .price small{font-size:1rem;color:var(--text-muted)}.buy-box .btn{width:100%;margin-bottom:12px}.secure-note{display:flex;align-items:center;gap:8px;color:var(--text-muted);font-size:.82rem;justify-content:center;text-align:center}.specs{margin-top:50px}.specs h3{margin-bottom:20px}.spec-row{display:grid;grid-template-columns:160px 1fr;grid-gap:10px;gap:10px;padding:12px 0;border-bottom:1px solid var(--border);font-size:.95rem}.spec-row dt{color:var(--text-muted)}.spec-row dd{color:var(--text)}.auth-wrap{max-width:440px;margin:0 auto;padding:60px 20px}.auth-form{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px}.auth-form h1{font-size:1.6rem;margin-bottom:6px}.auth-sub{color:var(--text-muted);margin-bottom:24px;font-size:.95rem}.form-group{margin-bottom:18px}.form-group label{display:block;margin-bottom:8px;font-weight:600;font-size:.92rem}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;background:var(--bg-soft);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.95rem;font-family:inherit}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent)}.form-error{background:hsla(0,100%,71%,.12);border:1px solid hsla(0,100%,71%,.4);color:var(--red);padding:12px;border-radius:8px}.form-error,.form-success{margin-bottom:18px;font-size:.92rem}.form-success{background:rgba(63,185,80,.1);border:1px solid rgba(63,185,80,.4);color:var(--green);padding:14px;border-radius:8px}.form-foot{margin-top:20px;text-align:center;color:var(--text-muted);font-size:.9rem}.form-foot a{color:var(--accent)}.account-layout{display:grid;grid-template-columns:220px 1fr;grid-gap:30px;gap:30px;align-items:start;padding:40px 0}.account-nav{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:12px;position:-webkit-sticky;position:sticky;top:84px}.account-nav a{display:block;padding:10px 14px;border-radius:8px;color:var(--text-muted);font-size:.95rem;transition:background .2s,color .2s}.account-nav a:hover{background:var(--bg-soft);color:var(--text)}.account-nav .logout{margin-top:12px;border-top:1px solid var(--border);padding-top:12px}.orders-table{width:100%;border-collapse:collapse}.orders-table td,.orders-table th{text-align:left;padding:12px;border-bottom:1px solid var(--border);font-size:.92rem}.orders-table th{color:var(--text-muted);font-weight:600}.status{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.76rem;font-weight:700;text-transform:uppercase}.status-pending{background:rgba(240,185,11,.15);color:var(--accent)}.status-paid{background:rgba(63,185,80,.15);color:var(--green)}.status-cancelled{background:hsla(0,100%,71%,.15);color:var(--red)}.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted)}.empty-state a{color:var(--accent)}.site-footer{border-top:1px solid var(--border);padding:40px 0;color:var(--text-muted);font-size:.9rem;margin-top:40px}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:30px;gap:30px}.footer-grid h4{color:var(--text);margin-bottom:12px}.footer-grid ul{list-style:none}.footer-grid ul li{margin-bottom:8px}.footer-grid ul a:hover{color:var(--accent)}.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:30px;padding-top:20px;border-top:1px solid var(--border)}@media (max-width:860px){.nav-links{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--bg-soft);border-bottom:1px solid var(--border);padding:16px 24px;gap:14px}.nav-links.open{display:flex}.burger{display:block}.hero{padding:70px 20px 50px}.product-detail{grid-template-columns:1fr}.buy-box{position:static}.account-layout{grid-template-columns:1fr}.account-nav{position:static}.footer-grid{grid-template-columns:1fr}}