:root{
--blue:#2563eb;
--blue-2:#4f7cff;
--blue-3:#dbeafe;
--ink:#0f172a;
--text:#334155;
--muted:#64748b;
--line:#e2e8f0;
--surface:#ffffff;
--soft:#f8fbff;
--success:#16a34a;
--warning:#d97706;
--danger:#dc2626;
--radius:18px;
--shadow:0 16px 50px rgba(37,99,235,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#f7faff;line-height:1.5}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.8)}
.nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:850;letter-spacing:-.6px;white-space:nowrap}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;font-size:12px;font-weight:900;background:linear-gradient(135deg,#2563eb,#72a1ff);box-shadow:0 8px 20px rgba(37,99,235,.25)}
.brand-accent{color:var(--blue)}
.desktop-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.desktop-nav a{font-size:14px;font-weight:650;color:#475569}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--blue)}
.nav-actions{display:flex;align-items:center;gap:9px}
.icon-btn{position:relative;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;display:grid;place-items:center;background:#fff}
.icon-btn b{position:absolute;right:-5px;top:-6px;min-width:17px;height:17px;padding:0 4px;border-radius:9px;background:var(--blue);color:#fff;font-size:10px;display:grid;place-items:center}
.mobile-menu-btn{display:none;border:0;background:#eff6ff;color:var(--blue);width:40px;height:40px;border-radius:12px}
.mobile-nav{display:none;padding:14px 20px 20px;background:#fff;border-top:1px solid var(--line)}
.mobile-nav a{display:block;padding:13px 0;font-weight:700;border-bottom:1px solid #f1f5f9}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 18px;font-weight:750;border:1px solid transparent;transition:.2s}
.btn-sm{padding:9px 14px;font-size:13px}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--blue),#4f78ff);box-shadow:0 10px 24px rgba(37,99,235,.18)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 28px rgba(37,99,235,.24)}
.btn-outline{background:#fff;border-color:#cbd5e1;color:var(--ink)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-ghost{background:#eff6ff;color:var(--blue)}
.btn-danger{background:#fef2f2;color:var(--danger)}
.hero{position:relative;overflow:hidden;padding:88px 0 78px;background:radial-gradient(circle at 82% 18%,rgba(37,99,235,.14),transparent 30%),linear-gradient(180deg,#fff 0%,#f6faff 100%)}
.hero:after{content:"";position:absolute;width:500px;height:500px;border-radius:50%;right:-220px;bottom:-270px;background:linear-gradient(135deg,rgba(79,124,255,.1),rgba(219,234,254,.05));pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);background:#eff6ff;border:1px solid #dbeafe;padding:7px 11px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.2px}
.hero h1{font-size:clamp(42px,6vw,70px);line-height:1.02;letter-spacing:-3px;margin:20px 0 22px;max-width:730px}
.gradient-text{background:linear-gradient(90deg,#2563eb,#5d8cff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;color:var(--muted);max-width:650px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:25px;color:#64748b;font-size:12px;font-weight:650}
.trust-row span{display:flex;align-items:center;gap:6px}
.hero-card{position:relative;background:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.95);border-radius:28px;padding:18px;box-shadow:0 30px 90px rgba(30,64,175,.13)}
.mock-top{display:flex;justify-content:space-between;align-items:center;padding:4px 4px 15px}
.mock-title{font-weight:800}
.mock-search{height:40px;border:1px solid var(--line);border-radius:10px;background:#f8fafc;padding:0 12px;color:#94a3b8;font-size:12px;display:flex;align-items:center}
.mock-tabs{display:flex;gap:7px;overflow:hidden;margin-bottom:14px}
.mock-tab{background:#f1f5f9;border-radius:9px;padding:8px 11px;font-size:11px;font-weight:750;white-space:nowrap}
.mock-tab.active{background:#eaf2ff;color:var(--blue)}
.listing-mini{display:grid;grid-template-columns:38px 1fr auto;gap:12px;align-items:center;padding:13px;border:1px solid #edf2f7;border-radius:14px;margin-top:9px;background:#fff}
.platform-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:#eff6ff;color:var(--blue);font-weight:900}
.listing-mini strong{font-size:12px}
.listing-mini small{display:block;color:#94a3b8;font-size:10px;margin-top:2px}
.price{font-weight:850;color:var(--ink)}
.section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:30px}
.section-head h2{margin:0;font-size:34px;letter-spacing:-1.2px}
.section-head p{margin:7px 0 0;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.feature-card{padding:25px}
.feature-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:#eff6ff;color:var(--blue);font-weight:900;margin-bottom:17px}
.feature-card h3{margin:0 0 8px;font-size:17px}
.feature-card p{margin:0;color:var(--muted);font-size:14px}
.platform-card{padding:22px;transition:.2s}
.platform-card:hover{transform:translateY(-3px);box-shadow:0 18px 45px rgba(37,99,235,.1)}
.platform-card .platform-icon{margin-bottom:18px}
.platform-card h3{margin:0 0 5px}
.platform-card p{margin:0;color:var(--muted);font-size:13px}
.cta{padding:58px 0}
.cta-box{position:relative;overflow:hidden;border-radius:28px;padding:48px;background:linear-gradient(135deg,#1d4ed8,#4f7cff);color:#fff}
.cta-box:after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;right:-90px;top:-110px;background:rgba(255,255,255,.12)}
.cta-box h2{margin:0 0 10px;font-size:35px;letter-spacing:-1px}
.cta-box p{margin:0 0 25px;max-width:640px;color:#dbeafe}
.page-head{padding:54px 0 30px;background:linear-gradient(180deg,#fff,#f7faff)}
.page-head h1{margin:0;font-size:40px;letter-spacing:-1.4px}
.page-head p{color:var(--muted);max-width:680px}
.market-layout{display:grid;grid-template-columns:250px 1fr;gap:25px;padding:35px 0 80px}
.filters{padding:20px;align-self:start;position:sticky;top:100px}
.filters h3{margin:0 0 15px}
.filter-group{padding:17px 0;border-top:1px solid var(--line)}
.filter-group:first-of-type{border-top:0}
.filter-group label{display:flex;align-items:center;gap:9px;margin:10px 0;font-size:13px;color:#475569}
.searchbar{display:flex;gap:10px;margin-bottom:20px}
.searchbar input{flex:1;height:46px;border:1px solid var(--line);border-radius:12px;padding:0 14px;background:#fff;outline:none}
.searchbar input:focus{border-color:#93c5fd;box-shadow:0 0 0 4px #eff6ff}
.market-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.market-top strong{font-size:14px}
.market-top select{border:1px solid var(--line);border-radius:10px;padding:9px 12px;background:#fff}
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.product-card{overflow:hidden;transition:.2s}
.product-card:hover{transform:translateY(-2px);box-shadow:0 18px 50px rgba(37,99,235,.1)}
.product-cover{height:125px;padding:18px;background:linear-gradient(135deg,#eef5ff,#f9fbff);display:flex;align-items:center;justify-content:space-between}
.product-cover .platform-icon{width:52px;height:52px;font-size:18px;background:#fff;box-shadow:0 8px 20px rgba(37,99,235,.08)}
.badge{display:inline-flex;align-items:center;padding:5px 8px;border-radius:999px;font-size:10px;font-weight:800}
.badge-green{background:#ecfdf3;color:#15803d}
.badge-blue{background:#eff6ff;color:#1d4ed8}
.badge-amber{background:#fffbeb;color:#b45309}
.product-body{padding:19px}
.product-body h3{margin:0 0 7px;font-size:16px}
.product-body p{margin:0 0 14px;color:var(--muted);font-size:12px}
.meta-row{display:flex;justify-content:space-between;gap:10px;color:#64748b;font-size:11px;margin-bottom:15px}
.product-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #f1f5f9;padding-top:14px}
.product-footer strong{font-size:19px}
.product-footer small{color:#94a3b8;font-size:10px}
.detail-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:25px;padding:38px 0 80px}
.detail-main,.buy-card{padding:25px}
.detail-cover{height:250px;border-radius:18px;background:linear-gradient(135deg,#eaf2ff,#fff);display:grid;place-items:center;margin-bottom:24px}
.detail-cover .platform-icon{width:82px;height:82px;font-size:28px;background:#fff;box-shadow:0 18px 40px rgba(37,99,235,.12)}
.detail-main h1{font-size:30px;letter-spacing:-1px;margin:0 0 10px}
.detail-main p{color:var(--muted)}
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:20px}
.spec{padding:14px;background:#f8fafc;border-radius:12px}
.spec small{display:block;color:#94a3b8;font-size:10px}
.spec strong{display:block;margin-top:3px;font-size:13px}
.buy-card{position:sticky;top:100px;height:max-content}
.buy-price{font-size:35px;font-weight:900;margin:10px 0}
.buy-card hr{border:0;border-top:1px solid var(--line);margin:20px 0}
.buy-card .btn{width:100%;margin-top:10px}
.notice{padding:13px 14px;border-radius:12px;background:#eff6ff;color:#1e40af;font-size:12px;margin-top:16px}
.auth-wrap{min-height:calc(100vh - 76px);display:grid;place-items:center;padding:50px 20px;background:radial-gradient(circle at 70% 20%,rgba(37,99,235,.1),transparent 30%),#f7faff}
.auth-card{width:min(460px,100%);padding:32px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
.auth-card h1{margin:0 0 8px;font-size:28px}
.auth-card>p{margin:0 0 25px;color:var(--muted);font-size:14px}
.form-group{margin-bottom:15px}
.form-group label{display:block;font-size:12px;font-weight:800;margin-bottom:7px}
.form-control{width:100%;height:45px;border:1px solid #cbd5e1;border-radius:10px;padding:0 12px;outline:none;background:#fff}
.form-control:focus{border-color:#93c5fd;box-shadow:0 0 0 4px #eff6ff}
textarea.form-control{height:110px;padding:12px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.auth-card .btn{width:100%;margin-top:5px}
.auth-foot{text-align:center;margin-top:18px;color:var(--muted);font-size:13px}
.dashboard-shell{display:grid;grid-template-columns:235px 1fr;min-height:calc(100vh - 76px)}
.sidebar{background:#fff;border-right:1px solid var(--line);padding:22px 14px;position:sticky;top:76px;height:calc(100vh - 76px)}
.user-mini{padding:12px;border-radius:15px;background:#f8fbff;margin-bottom:20px}
.avatar{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#2563eb,#7aa3ff);display:grid;place-items:center;color:#fff;font-weight:850}
.user-mini strong{display:block;margin-top:9px;font-size:13px}
.user-mini small{color:#94a3b8}
.side-link{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;font-size:13px;font-weight:700;color:#64748b;margin:3px 0}
.side-link:hover,.side-link.active{background:#eff6ff;color:var(--blue)}
.dashboard-main{padding:30px;background:#f7faff}
.dash-head{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:25px}
.dash-head h1{margin:0;font-size:28px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:20px}
.stat{padding:20px}
.stat small{color:#94a3b8;font-size:11px;font-weight:750}
.stat strong{display:block;font-size:25px;margin-top:7px}
.stat .trend{font-size:11px;color:var(--success);margin-top:6px}
.table-card{overflow:auto}
.table{width:100%;border-collapse:collapse;min-width:700px}
.table th,.table td{padding:14px 17px;border-bottom:1px solid #eef2f7;text-align:left;font-size:12px}
.table th{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:#94a3b8}
.status{display:inline-flex;padding:5px 8px;border-radius:999px;font-size:10px;font-weight:800}
.status.success{background:#ecfdf3;color:#15803d}
.status.pending{background:#fffbeb;color:#b45309}
.status.processing{background:#eff6ff;color:#1d4ed8}
.status.cancelled{background:#fef2f2;color:#b91c1c}
.split-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:20px;margin-top:20px}
.panel{padding:22px}
.panel h3{margin:0 0 16px}
.wallet-box{padding:25px;border-radius:18px;background:linear-gradient(135deg,#1d4ed8,#5d8cff);color:#fff}
.wallet-box small{opacity:.8}
.wallet-box strong{display:block;font-size:32px;margin:7px 0 20px}
.inline-actions{display:flex;gap:9px;flex-wrap:wrap}
.site-footer{background:#fff;border-top:1px solid var(--line);padding:55px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}
.footer-grid h4{margin:0 0 12px}
.footer-grid a{display:block;color:#64748b;font-size:13px;margin:9px 0}
.footer-brand{margin-bottom:14px}
.muted{color:var(--muted);font-size:13px}
.footer-bottom{border-top:1px solid var(--line);margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#94a3b8;font-size:11px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{padding:24px}
.step-number{width:34px;height:34px;border-radius:10px;background:#eff6ff;color:var(--blue);display:grid;place-items:center;font-weight:900;margin-bottom:14px}
.faq{padding:18px 0;border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:800}
.faq p{color:var(--muted);font-size:13px}
.cart-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:22px;padding:35px 0 80px}
.cart-item{display:grid;grid-template-columns:55px 1fr auto;gap:14px;align-items:center;padding:18px;border-bottom:1px solid var(--line)}
.cart-item:last-child{border-bottom:0}
.cart-summary{padding:22px;height:max-content;position:sticky;top:100px}
.summary-line{display:flex;justify-content:space-between;margin:12px 0;color:#64748b;font-size:13px}
.summary-total{border-top:1px solid var(--line);padding-top:15px;margin-top:15px;display:flex;justify-content:space-between;font-size:18px;font-weight:900}
.empty{padding:55px;text-align:center;color:#94a3b8}
.toast{position:fixed;right:20px;bottom:20px;background:#0f172a;color:#fff;padding:12px 16px;border-radius:11px;font-size:13px;opacity:0;transform:translateY(12px);pointer-events:none;transition:.25s;z-index:100}
.toast.show{opacity:1;transform:translateY(0)}
@media(max-width:1000px){
.desktop-nav{display:none}.mobile-menu-btn{display:block}
.mobile-nav.show{display:block}
.hero-grid,.detail-grid,.cart-layout{grid-template-columns:1fr}
.grid-4{grid-template-columns:repeat(2,1fr)}
.market-layout{grid-template-columns:1fr}.filters{position:static}
.sidebar{display:none}.dashboard-shell{grid-template-columns:1fr}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.split-grid{grid-template-columns:1fr}
.buy-card{position:static}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:650px){
.container{width:min(100% - 28px,1180px)}
.nav-actions .btn{display:none}
.hero{padding:60px 0}.hero h1{letter-spacing:-2px}
.grid-3,.steps,.grid-4,.product-grid{grid-template-columns:1fr}
.form-row{grid-template-columns:1fr}
.stats-grid{grid-template-columns:1fr 1fr}
.section{padding:60px 0}
.footer-grid{grid-template-columns:1fr}
.footer-bottom{flex-direction:column}
.market-top{align-items:flex-start;flex-direction:column}
}