:root{
  --bg:#0a0e1a; --bg2:#0f1424; --card:#141a2e; --card2:#1a2140;
  --border:#242c48; --text:#e8ecf6; --muted:#8b93b0;
  --primary:#7C3AED; --accent:#22D3EE; --pink:#c026d3;
  --green:#22c55e; --red:#ef4444; --yellow:#f59e0b;
  --grad:linear-gradient(135deg,#22D3EE 0%,#7C3AED 55%,#c026d3 100%);
  --glow:0 0 30px rgba(124,58,237,.45);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:radial-gradient(1200px 600px at 50% -10%,rgba(124,58,237,.18),transparent 60%),var(--bg);
  color:var(--text); line-height:1.6; -webkit-font-smoothing:antialiased; min-height:100vh;
}
a{color:var(--accent);text-decoration:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 18px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:600;font-size:15px;padding:12px 22px;
  border-radius:12px;transition:.2s;text-decoration:none;color:#fff}
.btn-grad{background:var(--grad);box-shadow:var(--glow)}
.btn-grad:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(124,58,237,.6)}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-full{width:100%}
.btn-sm{padding:8px 14px;font-size:13px;border-radius:10px}
.btn-red{background:var(--red)} .btn-green{background:var(--green)}

/* cards / inputs */
.card{background:linear-gradient(160deg,var(--card),var(--bg2));border:1px solid var(--border);
  border-radius:var(--radius);padding:22px}
.input,select,textarea{width:100%;background:var(--bg2);border:1px solid var(--border);
  color:var(--text);padding:12px 14px;border-radius:12px;font-size:15px;font-family:inherit;outline:none}
.input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px;font-weight:500}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.alert{padding:12px 16px;border-radius:12px;margin-bottom:16px;font-size:14px}
.alert-err{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.35);color:#fca5a5}
.alert-ok{background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.35);color:#86efac}

/* logo */
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px}
.logo img{width:34px;height:34px;border-radius:9px}

/* ---------- LANDING ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(10,14,26,.7);border-bottom:1px solid var(--border)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:66px}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--muted);font-weight:500}
.nav-links a:hover{color:var(--text)}
.hero{text-align:center;padding:90px 0 60px}
.hero h1{font-size:clamp(34px,6vw,60px);font-weight:800;line-height:1.1;margin-bottom:20px}
.hero p{font-size:clamp(16px,2.5vw,20px);color:var(--muted);max-width:620px;margin:0 auto 32px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.pill{display:inline-block;padding:6px 16px;border:1px solid var(--border);border-radius:999px;
  font-size:13px;color:var(--accent);margin-bottom:22px;background:rgba(34,211,238,.06)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;padding:40px 0}
.feature{padding:26px}
.feature .ico{width:52px;height:52px;border-radius:14px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.feature h3{font-size:19px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:15px}
.section-title{text-align:center;font-size:clamp(26px,4vw,40px);font-weight:800;margin-bottom:12px}
.section-sub{text-align:center;color:var(--muted);margin-bottom:40px}
.footer{border-top:1px solid var(--border);padding:40px 0;text-align:center;color:var(--muted);margin-top:60px}

/* ---------- AUTH ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:30px 18px}
.auth-card{width:100%;max-width:430px}
.auth-card .logo{justify-content:center;margin-bottom:8px;font-size:24px}
.auth-card h2{text-align:center;margin-bottom:6px;font-size:26px}
.auth-card .sub{text-align:center;color:var(--muted);margin-bottom:24px;font-size:14px}
.switch{text-align:center;margin-top:18px;color:var(--muted);font-size:14px}

/* ---------- DASHBOARD ---------- */
.app{display:flex;min-height:100vh}
.sidebar{width:250px;background:var(--bg2);border-right:1px solid var(--border);
  padding:20px 14px;position:fixed;height:100vh;overflow-y:auto;z-index:100;transition:.25s}
.sidebar .logo{padding:6px 8px 20px}
.side-link{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;
  color:var(--muted);font-weight:500;margin-bottom:4px;cursor:pointer}
.side-link:hover{background:var(--card);color:var(--text)}
.side-link.active{background:var(--grad);color:#fff}
.side-link .ico{font-size:18px;width:22px;text-align:center}
.main{flex:1;margin-left:250px;padding:24px;min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:12px}
.topbar h1{font-size:24px}
.credit-badge{display:flex;align-items:center;gap:8px;background:var(--card);
  border:1px solid var(--border);padding:8px 16px;border-radius:999px;font-weight:700}
.credit-badge .amt{color:var(--accent)}
.menu-btn{display:none;background:var(--card);border:1px solid var(--border);color:var(--text);
  padding:10px 12px;border-radius:10px;cursor:pointer;font-size:18px}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat{padding:20px}
.stat .label{color:var(--muted);font-size:13px}
.stat .value{font-size:28px;font-weight:800;margin-top:6px}

.tab{display:none} .tab.active{display:block}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:12px;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
tr:hover td{background:rgba(255,255,255,.02)}
.badge{padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600}
.badge-green{background:rgba(34,197,94,.15);color:#86efac}
.badge-red{background:rgba(239,68,68,.15);color:#fca5a5}
.badge-yellow{background:rgba(245,158,11,.15);color:#f59e0b}
.badge-blue{background:rgba(34,211,238,.15);color:var(--accent)}

.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.product-item{overflow:hidden;padding:0}
.product-item img{width:100%;height:150px;object-fit:cover;display:block;background:var(--bg2)}
.product-item .body{padding:14px}
.product-item h4{font-size:15px;margin-bottom:4px}
.product-item p{font-size:13px;color:var(--muted)}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-row{display:flex;align-items:center;gap:14px;padding:16px;background:var(--card2);
  border-radius:12px;margin-bottom:12px}
.contact-row .ico{font-size:22px}

.modal-bg{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:200;
  align-items:center;justify-content:center;padding:18px}
.modal-bg.open{display:flex}
.modal{width:100%;max-width:480px;max-height:90vh;overflow-y:auto}
.modal h3{margin-bottom:16px}
.code-box{background:#05070f;border:1px solid var(--border);border-radius:12px;padding:16px;
  font-family:ui-monospace,'Courier New',monospace;font-size:13px;color:#9df;overflow-x:auto;
  white-space:pre-wrap;word-break:break-all;position:relative}
.copy-btn{position:absolute;top:8px;right:8px}

@media(max-width:820px){
  .sidebar{transform:translateX(-100%)} .sidebar.open{transform:translateX(0)}
  .main{margin-left:0} .menu-btn{display:block}
  .grid-2{grid-template-columns:1fr}
  .nav-links{display:none}
}