:root{
  --bg:#0f1420; --panel:#161d2e; --panel2:#1c2438; --border:#2a3350;
  --text:#e8ecf6; --muted:#8b93ab; --accent:#4f7cff; --accent2:#3b62d1;
  --green:#2fbf71; --red:#ef5555; --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);}
a{color:var(--accent);text-decoration:none}
h1,h2,h3{margin:0 0 .6em}
small{color:var(--muted)}

.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--panel);border-bottom:1px solid var(--border)}
.topbar .brand{font-weight:700;font-size:1.1rem}
.topbar nav a{margin-right:18px;color:var(--muted)}
.topbar nav a.active,.topbar nav a:hover{color:var(--text)}
.topbar .balance{background:var(--panel2);padding:6px 14px;border-radius:20px;border:1px solid var(--border);font-weight:600}

.container{max-width:1100px;margin:0 auto;padding:24px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:18px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:1fr 1fr}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:800px){.grid.cols-2,.grid.cols-3{grid-template-columns:1fr}}

table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{padding:10px 8px;border-bottom:1px solid var(--border);text-align:left}
th{color:var(--muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}
tr:hover td{background:rgba(255,255,255,.02)}

.btn{display:inline-block;background:var(--accent);color:#fff;border:none;padding:9px 16px;border-radius:8px;cursor:pointer;font-size:.9rem;font-weight:600}
.btn:hover{background:var(--accent2)}
.btn.small{padding:5px 10px;font-size:.8rem}
.btn.danger{background:var(--red)}
.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn:disabled{opacity:.5;cursor:not-allowed}

.badge{padding:2px 10px;border-radius:20px;font-size:.75rem;font-weight:600}
.badge.active{background:rgba(47,191,113,.15);color:var(--green)}
.badge.finished{background:rgba(139,147,171,.2);color:var(--muted)}
.badge.refunded{background:rgba(239,85,85,.15);color:var(--red)}

form label{display:block;margin-bottom:14px;font-size:.9rem;color:var(--muted)}
input,select{width:100%;padding:10px;margin-top:6px;border-radius:8px;border:1px solid var(--border);background:var(--panel2);color:var(--text);font-size:.95rem}
input:focus,select:focus{outline:2px solid var(--accent)}

.alert{padding:12px 14px;border-radius:8px;margin-bottom:16px;font-size:.9rem}
.alert.error{background:rgba(239,85,85,.12);color:#ff8f8f;border:1px solid rgba(239,85,85,.3)}
.alert.success{background:rgba(47,191,113,.12);color:#8fe5b5;border:1px solid rgba(47,191,113,.3)}

.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh}
.auth-box{width:360px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.auth-box .btn{width:100%;margin-top:6px}

.code-pill{display:inline-block;background:var(--panel2);border:1px solid var(--border);padding:2px 10px;border-radius:6px;font-family:monospace;letter-spacing:.05em}
.muted{color:var(--muted)}
.right{text-align:right}
.mt-0{margin-top:0}
.flex{display:flex;gap:10px;align-items:center}
.flex.between{justify-content:space-between}

.switch{position:relative;display:inline-block;width:42px;height:24px}
.switch input{opacity:0;width:0;height:0}
.switch .slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:var(--panel2);border:1px solid var(--border);border-radius:24px;transition:.2s}
.switch .slider:before{position:absolute;content:"";height:16px;width:16px;left:3px;bottom:3px;background:var(--muted);border-radius:50%;transition:.2s}
.switch input:checked + .slider{background:var(--accent)}
.switch input:checked + .slider:before{background:#fff;transform:translateX(18px)}
.switch input:disabled + .slider{opacity:.5;cursor:not-allowed}