:root{--bg:#0f1115;--panel:#171a21;--panel-2:#1e222b;--border:#2a2f3a;--text:#e7e9ee;--muted:#9aa2b1;--accent:#6ea8fe;--green:#4ade80;--amber:#fbbf24;--red:#f87171;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px;line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.app{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:20px 14px;display:flex;flex-direction:column;gap:4px}.sidebar .brand{font-weight:700;font-size:16px;margin:0 8px 18px;letter-spacing:.5px}.sidebar .brand small{display:block;color:var(--muted);font-weight:400;font-size:11px;letter-spacing:0}.nav-link{padding:8px 10px;border-radius:8px;color:var(--text)}.nav-link:hover{background:var(--panel-2);text-decoration:none}.nav-link.active{background:var(--panel-2);color:var(--accent)}.main,.sidebar .spacer{flex:1 1}.main{padding:28px 32px;max-width:1200px}h1{font-size:22px;margin:0 0 4px}h2{font-size:16px;margin:26px 0 12px}.subtitle{color:var(--muted);margin:0 0 22px}.grid{display:grid;grid-gap:16px;gap:16px}.cards{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.stat{font-size:30px;font-weight:700}.stat-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.6px}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:top}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}.mono,td.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;border:1px solid var(--border)}.badge.active{color:var(--green);border-color:#245a3a;background:#12271b}.badge.locked,.badge.refunded,.badge.revoked{color:var(--red);border-color:#5a2424;background:#271212}.badge.unlocked_by_admin{color:var(--amber);border-color:#5a4a24;background:#272012}input,select,textarea{background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:9px 11px;font-size:14px;width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.row>*{flex:0 0 auto}.row .grow{flex:1 1 auto}.btn,button{background:var(--accent);color:#0b1220;border:none;border-radius:8px;padding:9px 14px;font-weight:600;font-size:13px;cursor:pointer}.btn:hover,button:hover{filter:brightness(1.08)}.btn.secondary,button.secondary{background:var(--panel-2);color:var(--text);border:1px solid var(--border)}.btn.danger,button.danger{background:#3a1a1a;color:var(--red);border:1px solid #5a2424}button:disabled{opacity:.5;cursor:not-allowed}.note{color:var(--muted);font-size:12px}.error{color:var(--red)}.error,.ok{font-size:13px}.ok{color:var(--green)}.login-wrap{display:flex;min-height:100vh;align-items:center;justify-content:center}.login-card{width:360px}.login-card .card{display:flex;flex-direction:column;gap:12px}.keycopy{display:flex;gap:8px;align-items:center}.form-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}.form-grid .full{grid-column:1/-1}