:root{--bg:#f6f5ff;--surface:#ffffff;--text:#1f1b3a;--muted:#6b6788;--border:#e4e1f5;--primary:#6c4cf1;--primary-ink:#ffffff;--accent:#ffb703;--good:#1a9b5c;--good-bg:#e2f6ec;--warn:#c76a00;--warn-bg:#fff1dc;--bad:#d63a4a;--bad-bg:#fde7ea;--radius:14px;--shadow:0 1px 2px rgba(31,27,58,0.06),0 4px 14px rgba(31,27,58,0.06)}@media (prefers-color-scheme:dark){:root{--bg:#14122a;--surface:#1f1c3d;--text:#f1efff;--muted:#a39fc7;--border:#322e5c;--primary:#8f78ff;--primary-ink:#14122a;--good:#4cd18d;--good-bg:#123a2a;--warn:#ffb45a;--warn-bg:#3d2c12;--bad:#ff7b88;--bad-bg:#3f1a22;--shadow:none}}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.45;-webkit-text-size-adjust:100%}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{margin:0 0 .5rem;line-height:1.2}h1{font-size:1.6rem}h2{font-size:1.2rem}h3{font-size:1rem}p{margin:0 0 .75rem}.container{max-width:1040px;margin:0 auto;padding:16px}.topbar{background:var(--surface);border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;z-index:20}.topbar-inner{max-width:1040px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.topbar-student{border-bottom:none;box-shadow:0 2px 4px rgba(40,36,70,.06),0 8px 24px rgba(40,36,70,.1)}.topbar-student .topbar-inner{flex-wrap:nowrap}.topbar-student .topbar-band{background:var(--bg);border-top:1px solid var(--border)}.topbar-student .topbar-sub{justify-content:flex-end;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}.brand{font-weight:800;font-size:1.15rem;color:var(--text);display:inline-flex;align-items:center;gap:8px}.brand:hover{text-decoration:none}.spacer{flex:1 1}.who{color:var(--muted);font-size:.9rem}.tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;margin-bottom:16px}.tab{white-space:nowrap;padding:8px 14px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-weight:600;font-size:.92rem}.tab:hover{text-decoration:none}.tab.active,.tab:hover{border-color:var(--primary)}.tab.active{background:var(--primary);color:var(--primary-ink)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.card+.card{margin-top:12px}.grid{display:grid;grid-gap:12px;gap:12px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.grid>.card+.card{margin-top:0}.stack>*+*{margin-top:12px}.row,.row-between{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row-between{justify-content:space-between}label{display:block;font-size:.85rem;font-weight:600;margin-bottom:4px;color:var(--muted)}input,select,textarea{width:100%;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:9px 11px;min-height:40px}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:1px}input[type=checkbox]{width:auto;min-height:0}textarea{min-height:90px;resize:vertical}.field+.field{margin-top:10px}.form-grid{display:grid;grid-gap:10px;gap:10px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.btn{font:inherit;font-weight:700;cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;padding:9px 14px;min-height:40px}.btn:hover{border-color:var(--primary)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}.btn-danger{color:var(--bad);border-color:var(--bad)}.btn-sm{padding:5px 10px;min-height:32px;font-size:.85rem}.badge{display:inline-flex;align-items:center;gap:4px;white-space:nowrap;font-size:.75rem;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--border);color:var(--text)}.badge-good{background:var(--good-bg);color:var(--good)}.badge-warn{background:var(--warn-bg);color:var(--warn)}.badge-bad{background:var(--bad-bg);color:var(--bad)}.badge-primary{background:var(--primary);color:var(--primary-ink)}.muted{color:var(--muted)}.small{font-size:.85rem}.error{color:var(--bad);font-weight:600}.success{font-weight:600}.pos,.success{color:var(--good)}.neg,.pos{font-weight:700}.neg{color:var(--bad)}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:9px 8px;border-bottom:1px solid var(--border);vertical-align:middle}th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}td.num,th.num{text-align:right;white-space:nowrap}td input{min-width:90px}.balance{display:flex;gap:12px;flex-wrap:wrap}.balance .tile{display:flex;align-items:center;justify-content:space-between;gap:8px;flex:1 1 140px;background:var(--bg);border-radius:12px;padding:12px 14px;border:1px solid var(--border)}.balance .tile .n{font-size:1.8rem;font-weight:800}.balance .tile.main{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}.balance .tile.main .muted{color:inherit;opacity:.8}.auction-card{display:flex;flex-direction:column;gap:8px;padding:0;overflow:hidden}.auction-card .cover{object-fit:cover;display:block}.auction-card .cover,.auction-card .cover-empty{width:100%;aspect-ratio:16/9;background:linear-gradient(135deg,var(--primary),var(--accent))}.auction-card .cover-empty{display:grid;place-items:center;font-size:3rem}.auction-body{padding:4px 16px 16px;display:flex;flex-direction:column;gap:8px}.price{font-size:1.5rem;font-weight:800}.countdown{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-weight:800;font-size:1.15rem}.countdown.urgent{color:var(--bad)}.toasts{position:fixed;right:12px;left:12px;bottom:12px;display:flex;flex-direction:column;gap:8px;align-items:flex-end;z-index:50;pointer-events:none}.toast{pointer-events:auto;max-width:420px;width:100%;background:var(--surface);border:2px solid var(--warn);border-radius:12px;padding:12px 14px;box-shadow:0 6px 24px rgba(0,0,0,.25);display:flex;gap:10px;align-items:flex-start}.toast.good{border-color:var(--good)}.toast button{margin-left:auto;background:none;border:none;color:var(--muted);font-size:1.1rem;cursor:pointer}.center-page{min-height:100vh;display:grid;place-items:center;padding:16px}.auth-box{width:100%;max-width:400px}.cred{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}@media (max-width:600px){h1{font-size:1.35rem}.container{padding:12px}}@media print{.no-print,.tabs,.topbar{display:none!important}body{background:#fff;color:#000}}.auction-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:20px;gap:20px;align-items:start}.auction-cols.wide{grid-template-columns:minmax(0,1fr)}@media (max-width:900px){.auction-cols{grid-template-columns:minmax(0,1fr)}}