:root{--fn-bg:#0f1115;--fn-surface:#171a21;--fn-surface-2:#1f232c;--fn-border:#2a2f3a;--fn-text:#e7e9ee;--fn-muted:#9aa3b2;--fn-accent:#4f8cff;--fn-danger:#ff5f56;--fn-ok:#2ecc71;--fn-radius:10px;--fn-font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}body{background:var(--fn-bg);color:var(--fn-text);font-family:var(--fn-font);margin:0;font-size:15px;line-height:1.5}a{color:var(--fn-accent)}.fn-shell{grid-template-columns:240px 1fr;min-height:100vh;display:grid}.fn-side{background:var(--fn-surface);border-right:1px solid var(--fn-border);padding:20px 16px}.fn-side h1{letter-spacing:.02em;margin:0 0 20px;font-size:15px}.fn-side nav a{color:var(--fn-text);border-radius:8px;padding:8px 10px;text-decoration:none;display:block}.fn-side nav a:hover{background:var(--fn-surface-2)}.fn-main{max-width:1100px;padding:28px 32px}.fn-card{background:var(--fn-surface);border:1px solid var(--fn-border);border-radius:var(--fn-radius);margin-bottom:16px;padding:20px}.fn-center{place-items:center;min-height:100vh;padding:24px;display:grid}.fn-form{width:100%;max-width:380px}label{color:var(--fn-muted);margin:14px 0 6px;font-size:13px;display:block}input[type=text],input[type=email],input[type=password],input[type=number],select,textarea{border:1px solid var(--fn-border);background:var(--fn-surface-2);width:100%;color:var(--fn-text);font:inherit;border-radius:8px;padding:10px 12px}button{background:var(--fn-accent);color:#fff;width:100%;font:inherit;cursor:pointer;border:0;border-radius:8px;margin-top:18px;padding:11px 14px;font-weight:600}button.fn-secondary{background:var(--fn-surface-2);color:var(--fn-text);border:1px solid var(--fn-border)}.fn-error{color:#ffb4b0;background:#ff5f561f;border:1px solid #ff5f5666;border-radius:8px;margin-top:14px;padding:10px 12px;font-size:14px}.fn-hint{color:var(--fn-muted);font-size:13px}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--fn-border);padding:8px 10px;font-size:14px}th{color:var(--fn-muted);font-weight:500}code{background:var(--fn-surface-2);border-radius:6px;padding:2px 6px;font-size:13px}