:root{--ink: #0f1e3d;--paper: #f4eee3;--paper-2: #ede4d2;--accent: #b0532b;--gold: #c9a14b;--muted: #5b5347;--radius-lg: 14px}[data-theme=dark]{--ink: #f4eee3;--paper: #0b1428;--paper-2: #11193a;--accent: #d2724a;--muted: #9c9582}*{box-sizing:border-box}html,body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}.shell{min-height:100vh;display:grid;place-items:center;padding:24px}.card{text-align:center;background:var(--paper-2);border:1px solid rgba(15,30,61,.12);border-radius:var(--radius-lg);padding:48px 56px;box-shadow:0 22px 48px -28px #0f1e3d59}.mark{width:44px;height:44px;margin:0 auto 20px;border-radius:50%;background:radial-gradient(circle at 68% 34%,var(--accent) 0 6px,transparent 7px),var(--ink)}.card h1{font-family:Fraunces,Georgia,serif;font-weight:400;font-size:40px;margin:0 0 6px;letter-spacing:-.02em}.tag{color:var(--muted);margin:0 0 24px;font-size:14px}.status code{font-family:JetBrains Mono,ui-monospace,monospace;color:var(--accent)}.btns{display:flex;flex-direction:column;gap:10px;margin-top:8px}.btn{font:inherit;font-weight:500;padding:12px 18px;border-radius:10px;border:1px solid rgba(15,30,61,.18);background:var(--paper);color:var(--ink);cursor:pointer;text-decoration:none;text-align:center;transition:transform .12s ease,border-color .2s ease}.btn:hover:not(:disabled){transform:translateY(-1px);border-color:var(--accent)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-on{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);width:100%}.lbl{display:block;font-size:13px;color:var(--muted);margin:12px 0 4px}.inp{width:100%;font:inherit;padding:10px 12px;border-radius:10px;border:1px solid rgba(15,30,61,.18);background:var(--paper);color:var(--ink)}.err{color:var(--accent-2, #8b2635);font-size:14px;margin-top:12px}