:root{
  --bg:#0b0f19; --panel:#141a2a; --panel2:#1b2236; --line:#26304a;
  --text:#e8ecf5; --muted:#93a0bd; --brand:#6366f1; --brand2:#818cf8;
  --green:#22c55e; --red:#ef4444; --amber:#f59e0b;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;line-height:1.5}
a{color:var(--brand2);text-decoration:none}
a:hover{text-decoration:underline}

.topbar{display:flex;align-items:center;justify-content:space-between;
  background:var(--panel);border-bottom:1px solid var(--line);padding:14px 24px;position:sticky;top:0;z-index:10}
.topbar .logo{font-weight:700;font-size:18px;letter-spacing:.3px}
.topbar .logo span{color:var(--brand2)}
.nav{display:flex;gap:6px;align-items:center}
.nav a{padding:8px 14px;border-radius:8px;color:var(--muted);font-weight:500}
.nav a:hover{background:var(--panel2);color:var(--text);text-decoration:none}
.nav a.active{background:var(--brand);color:#fff}

.wrap{max-width:1000px;margin:28px auto;padding:0 20px}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}
h1{font-size:24px;margin:0}
h2{font-size:18px;margin:0 0 14px}

.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:20px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:1fr 1fr}
@media(max-width:640px){.grid.cols-2{grid-template-columns:1fr}}

label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:600}
input[type=text],input[type=email],input[type=password],input[type=number],select,textarea{
  width:100%;padding:11px 13px;background:var(--panel2);border:1px solid var(--line);
  border-radius:9px;color:var(--text);font-size:15px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand)}
input[type=color]{width:56px;height:42px;padding:3px;background:var(--panel2);border:1px solid var(--line);border-radius:9px}
textarea{resize:vertical;min-height:70px}
.field{margin-bottom:16px}

.btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:none;
  background:var(--brand);color:#fff;padding:11px 18px;border-radius:9px;font-size:15px;font-weight:600;font-family:inherit}
.btn:hover{background:#4f52e0;text-decoration:none}
.btn.gray{background:var(--panel2);border:1px solid var(--line);color:var(--text)}
.btn.gray:hover{background:#232c46}
.btn.red{background:var(--red)}
.btn.sm{padding:7px 12px;font-size:13px}

table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px;font-weight:700}
tr:last-child td{border-bottom:none}

.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700}
.badge.paid{background:rgba(34,197,94,.15);color:#4ade80}
.badge.unpaid{background:rgba(245,158,11,.15);color:#fbbf24}

.brand-chip{display:inline-flex;align-items:center;gap:9px}
.brand-chip img{width:28px;height:28px;border-radius:6px;object-fit:cover;background:#fff}
.brand-dot{width:14px;height:14px;border-radius:4px;display:inline-block}

.alert{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:14px}
.alert.err{background:rgba(239,68,68,.12);color:#fca5a5;border:1px solid rgba(239,68,68,.3)}
.alert.ok{background:rgba(34,197,94,.12);color:#86efac;border:1px solid rgba(34,197,94,.3)}
.alert.info{background:rgba(99,102,241,.12);color:#c7d2fe;border:1px solid rgba(99,102,241,.3)}

.muted{color:var(--muted)}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.right{text-align:right}
.copybox{display:flex;gap:8px;align-items:center;background:var(--panel2);border:1px solid var(--line);
  border-radius:9px;padding:10px 12px;margin-top:6px}
.copybox input{border:none;background:transparent;padding:0;flex:1}
.stat{display:flex;gap:20px;flex-wrap:wrap;margin-bottom:22px}
.stat .box{flex:1;min-width:150px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.stat .box .n{font-size:26px;font-weight:800}
.stat .box .l{color:var(--muted);font-size:13px;margin-top:2px}
.empty{text-align:center;padding:40px;color:var(--muted)}

/* Login */
.login-wrap{max-width:380px;margin:9vh auto;padding:0 20px}
.login-wrap .card{padding:30px}
.login-wrap h1{text-align:center;margin-bottom:6px}
.login-wrap .sub{text-align:center;color:var(--muted);margin-bottom:24px;font-size:14px}