:root{--bg:#0b1020;--bg-soft:#121a30;--card:#151d36;--card-2:#1b2545;--border:#26314f;--text:#eaf0ff;--muted:#9fb0d0;--muted-2:#6f80a3;--accent:#4ade80;--accent-2:#38bdf8;--danger:#fb7185;--warn:#fbbf24;--radius:14px;--shadow:0 10px 40px rgba(0,0,0,0.35)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:radial-gradient(1200px 600px at 70% -10%,#1a2547 0,var(--bg) 55%);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh}a{color:var(--accent-2);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:940px;margin:0 auto;padding:32px 20px 80px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em;font-size:20px}.brand .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));box-shadow:0 0 16px var(--accent)}.brand .tag{font-size:11px;color:var(--muted-2);font-weight:500;border:1px solid var(--border);padding:2px 8px;border-radius:999px;margin-left:4px}.hero{margin:40px 0 28px}.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.08;letter-spacing:-.03em;margin:0 0 14px}.hero h1 .grad{background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:17px;color:var(--muted);max-width:640px;margin:0;line-height:1.5}.card{background:linear-gradient(180deg,var(--card),var(--bg-soft));border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card+.card{margin-top:20px}.card h2{font-size:18px;margin:0 0 4px;letter-spacing:-.01em}.card .sub{color:var(--muted-2);font-size:13px;margin:0 0 18px}.grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px}@media (max-width:640px){.grid{grid-template-columns:1fr}}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:500}.field .hint{font-size:11.5px;color:var(--muted-2);margin-top:5px;line-height:1.4}input[type=number],input[type=text],select{width:100%;padding:11px 12px;border-radius:10px;border:1px solid var(--border);background:#0e152b;color:var(--text);font-size:15px;outline:none;transition:border-color .15s}input:focus,select:focus{border-color:var(--accent-2)}.row-inline{display:flex;gap:10px}.row-inline>*{flex:1 1}.seg{display:inline-flex;background:#0e152b;border:1px solid var(--border);border-radius:10px;padding:3px;gap:3px}.seg button{border:0;background:transparent;color:var(--muted);padding:8px 14px;border-radius:8px;font-size:14px;cursor:pointer;font-weight:500}.seg button.active{background:var(--card-2);color:var(--text)}.toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:#0e152b;cursor:pointer}.toggle span{font-size:14px}.toggle .sw{width:42px;height:24px;border-radius:999px;background:#2a3556;position:relative;transition:background .15s;flex:none}.toggle .sw:after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .15s}.toggle.on .sw{background:var(--accent)}.toggle.on .sw:after{transform:translateX(18px)}.result{margin-top:4px}.result .big{font-size:clamp(34px,7vw,52px);font-weight:800;letter-spacing:-.03em;line-height:1}.result .big.owe{color:var(--text)}.result .big.refund{color:var(--accent)}.result .caption{color:var(--muted);font-size:14px;margin-top:8px}.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--border);color:var(--muted)}.pill.ftr{color:var(--accent);border-color:rgba(74,222,128,.3);background:rgba(74,222,128,.08)}.pill.slab{color:var(--warn);border-color:rgba(251,191,36,.3);background:rgba(251,191,36,.08)}.checks{list-style:none;padding:0;margin:16px 0 0;display:grid;grid-gap:8px;gap:8px}.checks li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted)}.checks .ic{flex:none;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;margin-top:1px}.checks .ic.ok{background:rgba(74,222,128,.15);color:var(--accent)}.checks .ic.no{background:rgba(251,113,133,.15);color:var(--danger)}.explain{margin-top:18px;border-top:1px solid var(--border);padding-top:14px}.explain table{width:100%;border-collapse:collapse;font-size:13.5px}.explain td{padding:7px 0;border-bottom:1px solid rgba(38,49,79,.5);vertical-align:top}.explain td.amt{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--text)}.explain .ref{font-size:11px;color:var(--muted-2)}.explain tr:last-child td{border-bottom:0;font-weight:700}.warn-box{margin-top:16px;border:1px solid rgba(251,191,36,.3);background:rgba(251,191,36,.07);color:#f7e3ad;border-radius:10px;padding:12px 14px;font-size:13px;line-height:1.5}.warn-box b{color:var(--warn)}.saving{margin-top:16px;border:1px solid rgba(74,222,128,.3);background:rgba(74,222,128,.07);border-radius:12px;padding:16px}.saving .amt{font-size:24px;font-weight:800;color:var(--accent)}.saving p{margin:6px 0 0;font-size:13px;color:var(--muted)}.disclaimer{margin-top:26px;font-size:12px;line-height:1.6;border-top:1px solid var(--border);padding-top:18px}.disclaimer,.foot{color:var(--muted-2)}.foot{margin-top:40px;font-size:12.5px;text-align:center}.provisional{display:inline-block;margin-left:6px;font-size:10.5px;color:var(--warn);border:1px solid rgba(251,191,36,.35);border-radius:999px;padding:1px 7px;vertical-align:middle}