:root{
  --bg:#0b0e14; --panel:#141926; --panel2:#1b2233; --line:#26304a;
  --txt:#e7ecf5; --muted:#8b97b0; --primary:#6c5ce7; --primary2:#8b7bff;
  --ok:#1dd1a1; --warn:#feca57; --err:#ff6b6b; --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--txt);
  line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh;
}
a{color:var(--primary2);text-decoration:none}
h1,h2,h3{margin:.2em 0 .4em;font-weight:700;letter-spacing:-.02em}
.muted{color:var(--muted)}
.container{max-width:1080px;margin:auto;padding:24px}
.narrow{max-width:460px}

/* topbar */
.topbar{display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;border-bottom:1px solid var(--line);position:sticky;top:0;
  background:rgba(11,14,20,.85);backdrop-filter:blur(10px);z-index:20}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand img{height:30px;width:30px;border-radius:8px;object-fit:cover}
.nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.nav a{color:var(--muted);font-size:14px}
.nav a:hover,.nav a.active{color:var(--txt)}

/* cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;margin-bottom:18px}
.grid{display:grid;gap:18px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:760px){.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
  .nav{gap:12px}.container{padding:16px}}

.stat{font-size:30px;font-weight:800;letter-spacing:-.03em}
.stat-label{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.05em}

/* forms */
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px}
input,select,textarea{width:100%;padding:12px 14px;background:var(--panel2);
  border:1px solid var(--line);border-radius:10px;color:var(--txt);font-size:15px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary)}
input[type=color]{height:46px;padding:4px;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--primary);color:#fff;border:none;border-radius:10px;
  padding:12px 18px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;transition:.15s}
.btn:hover{background:var(--primary2)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn.ghost:hover{border-color:var(--primary)}
.btn.full{width:100%}
.btn.sm{padding:8px 12px;font-size:13px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* misc */
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.pill.ok{background:rgba(29,209,161,.15);color:var(--ok)}
.pill.warn{background:rgba(254,202,87,.15);color:var(--warn)}
.pill.err{background:rgba(255,107,107,.15);color:var(--err)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.mono{font-family:ui-monospace,Menlo,monospace;font-size:13px;word-break:break-all}
.alert{padding:12px 16px;border-radius:10px;margin:10px 0;font-size:14px}
.alert.ok{background:rgba(29,209,161,.12);border:1px solid var(--ok)}
.alert.warn{background:rgba(254,202,87,.12);border:1px solid var(--warn)}
.alert.err{background:rgba(255,107,107,.12);border:1px solid var(--err)}
.hero{text-align:center;padding:80px 20px 50px}
.hero h1{font-size:clamp(32px,6vw,56px);background:linear-gradient(90deg,#fff,var(--primary2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.center{text-align:center}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.spacer{flex:1}
.qr{background:#fff;padding:12px;border-radius:12px;display:inline-block}
.copy{cursor:pointer;border:1px dashed var(--line);padding:8px 12px;border-radius:8px;
  display:inline-flex;gap:8px;align-items:center}
.copy:hover{border-color:var(--primary)}
.hidden{display:none!important}
.lang-toggle{cursor:pointer;color:var(--muted);font-size:13px;border:1px solid var(--line);
  padding:5px 10px;border-radius:8px}