:root{
  --bg:#0b1020;
  --bg2:#111827;
  --card:rgba(17,24,39,.78);
  --card2:rgba(15,23,42,.92);
  --text:#f8fafc;
  --muted:#94a3b8;
  --soft:#cbd5e1;
  --line:rgba(255,255,255,.10);
  --accent:#38bdf8;
  --accent2:#60a5fa;
  --good:#22c55e;
  --shadow:0 24px 80px rgba(0,0,0,.38);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 16% 10%,rgba(56,189,248,.24),transparent 32%),
    radial-gradient(circle at 85% 8%,rgba(96,165,250,.18),transparent 30%),
    linear-gradient(135deg,#070b16 0%,#0b1020 48%,#111827 100%);
}
body:before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent);
}
a{color:inherit}
.page-shell{width:min(1180px,calc(100% - 34px));margin:0 auto;padding:28px 0 44px;position:relative}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:44px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:15px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#031220;font-weight:900;font-size:23px;box-shadow:0 12px 32px rgba(56,189,248,.24)}
.brand strong{display:block;font-size:16px;letter-spacing:.2px}.brand small{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.back-link{text-decoration:none;color:var(--soft);font-size:14px;border:1px solid var(--line);border-radius:999px;padding:10px 14px;background:rgba(255,255,255,.05);transition:.2s ease}
.back-link:hover{border-color:var(--accent);color:#fff;transform:translateY(-1px)}
.hero{display:grid;grid-template-columns:1fr 330px;gap:26px;align-items:stretch;margin-bottom:28px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#bae6fd;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.28);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.7px}
h1{font-size:clamp(36px,6vw,72px);line-height:.96;margin:18px 0 18px;letter-spacing:-2.8px}p{margin:0}.hero p{font-size:18px;line-height:1.65;color:var(--soft);max-width:760px}
.hero-card{background:linear-gradient(160deg,rgba(56,189,248,.20),rgba(15,23,42,.86));border:1px solid rgba(125,211,252,.28);border-radius:28px;padding:28px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center;min-height:210px}
.hero-card span{color:#bae6fd;font-weight:800;text-transform:uppercase;letter-spacing:.7px;font-size:12px}.hero-card strong{display:block;font-size:44px;margin:14px 0 6px;letter-spacing:-1.6px}.hero-card small{color:var(--muted)}
.calculator-grid{display:grid;grid-template-columns:390px 1fr;gap:24px;align-items:start}.panel{background:var(--card);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);backdrop-filter:blur(18px);padding:26px}.panel-header{display:flex;gap:14px;align-items:center;margin-bottom:22px}.panel-icon{display:grid;place-items:center;width:50px;height:50px;border-radius:18px;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.22);font-size:25px}.panel h2{margin:0 0 4px;font-size:24px;letter-spacing:-.5px}.panel-header p{color:var(--muted);font-size:14px}.field{display:block;margin-bottom:16px}.field span{display:block;margin-bottom:8px;color:var(--soft);font-size:14px;font-weight:700}input,select{width:100%;height:52px;border:1px solid rgba(255,255,255,.12);border-radius:16px;background:rgba(2,6,23,.55);color:var(--text);padding:0 15px;font-size:16px;outline:none;transition:.2s ease}select option{background:#111827;color:#fff}input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(56,189,248,.12)}.primary-btn{width:100%;height:54px;border:0;border-radius:17px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#04111f;font-size:16px;font-weight:900;cursor:pointer;box-shadow:0 16px 34px rgba(56,189,248,.24);transition:.2s ease}.primary-btn:hover{transform:translateY(-2px);filter:brightness(1.08)}.quick-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}.quick-facts div{border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.045);padding:13px 10px;text-align:center}.quick-facts strong{display:block;font-size:18px}.quick-facts span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.result-panel{min-height:560px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:20px;background:rgba(2,6,23,.32)}table{width:100%;border-collapse:collapse}th,td{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.075);font-size:14px}th{text-align:left;color:#bae6fd;text-transform:uppercase;letter-spacing:.8px;font-size:12px;background:rgba(56,189,248,.08)}th:last-child,td:last-child{text-align:right;font-variant-numeric:tabular-nums}tbody tr:hover{background:rgba(255,255,255,.035)}tfoot td{font-weight:900;font-size:16px;background:rgba(56,189,248,.08)}tfoot tr.final-total td{font-size:22px;color:#fff;background:linear-gradient(90deg,rgba(56,189,248,.14),rgba(96,165,250,.08))}.note{color:var(--muted);font-size:13px;line-height:1.6;margin-top:16px}.empty-state{color:var(--muted);text-align:center;padding:54px 18px}.muted-line{color:var(--muted)}
@media(max-width:920px){.hero,.calculator-grid{grid-template-columns:1fr}.hero-card{min-height:auto}.topbar{align-items:flex-start;flex-direction:column}.back-link{align-self:flex-start}}
@media(max-width:560px){.page-shell{width:min(100% - 22px,1180px);padding-top:18px}.panel{padding:20px;border-radius:22px}h1{letter-spacing:-1.7px}.hero p{font-size:16px}.quick-facts{grid-template-columns:1fr}.hero-card strong{font-size:34px}th,td{padding:12px 10px;font-size:13px}}