:root{
  --brand:#6d28d9;
  --brand2:#fbbf24;
  --ink:#1c1917;
  --muted:#6f6a63;
  --bg:#faf9f6;
  --surface:#ffffff;
  --surface2:#f4f1ea;
  --line:rgba(28,25,23,.12);
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:1.05rem;
  line-height:1.6;
}
.wrap{max-width:960px;margin:0 auto;padding:0 1.25rem}
a{color:var(--brand)}
.hidden{display:none!important}

/* header */
.topbar{background:var(--brand);color:#fff}
.topbar-in{display:flex;justify-content:space-between;align-items:center;padding:.9rem 1.25rem}
.brandmark{font-weight:750;font-size:1.25rem;letter-spacing:-.02em}
.brandmark span{color:var(--brand2);font-style:italic;font-family:Georgia,"Times New Roman",serif;font-weight:500}
.toplink{color:#fff;text-decoration:none;font-size:.92rem;opacity:.92}
.toplink:hover{text-decoration:underline;opacity:1}

/* hero */
.hero{padding:2.6rem 0 1.4rem}
.hero h1{
  font-size:clamp(2rem,4.6vw,3.1rem);
  line-height:1.12;
  letter-spacing:-.03em;
  font-weight:750;
  margin:0 0 1rem;
  text-wrap:balance;
}
.lede{font-size:1.14rem;color:var(--ink);max-width:46rem;text-wrap:pretty;margin:0}

/* cards */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:1.6rem clamp(1.1rem,3vw,2rem);
  margin:1.4rem 0;
  box-shadow:0 1px 2px rgba(28,25,23,.05),0 8px 24px rgba(28,25,23,.05);
}
.card h2{font-size:clamp(1.3rem,2.4vw,1.6rem);letter-spacing:-.02em;margin:.2rem 0 1rem;text-wrap:balance}

/* tabs */
.tabs{display:flex;gap:.5rem;margin-bottom:1.3rem}
.tab{
  appearance:none;border:1px solid var(--line);background:var(--surface2);
  color:var(--ink);font:inherit;font-size:.98rem;font-weight:600;
  padding:.55rem 1.1rem;border-radius:999px;cursor:pointer;
}
.tab.active{background:var(--brand);border-color:var(--brand);color:#fff}

/* form */
.form .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}
.field{display:flex;flex-direction:column;gap:.35rem}
.field.wide{margin-bottom:1rem}
.field span{font-size:.86rem;font-weight:650;letter-spacing:.02em;color:var(--ink)}
.field input,.field select{
  font:inherit;font-size:1rem;color:var(--ink);
  padding:.65rem .8rem;border:1px solid var(--line);border-radius:10px;background:#fff;width:100%;
}
.field input:focus,.field select:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
.spouse{
  display:flex;gap:.7rem;align-items:flex-start;margin-top:1.2rem;
  background:color-mix(in srgb,var(--brand) 5%,var(--surface));
  border:1px solid color-mix(in srgb,var(--brand) 25%,var(--line));
  border-radius:10px;padding:.9rem 1rem;cursor:pointer;
}
.spouse input{width:1.15rem;height:1.15rem;margin-top:.25rem;accent-color:var(--brand);flex:none}
.spouse strong{display:block;font-size:.98rem}
.spouse small{display:block;color:var(--muted);font-size:.88rem;line-height:1.5;margin-top:.2rem}
.hint{color:var(--muted);font-size:.94rem;margin:1rem 0 0}

/* results */
.results{margin-top:1.8rem;border-top:1px solid var(--line);padding-top:1.4rem}
.results h2{font-size:1.25rem}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.9rem}
.stat{background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:1rem 1.1rem}
.stat.highlight{background:color-mix(in srgb,var(--brand2) 16%,var(--surface));border-color:color-mix(in srgb,var(--brand2) 55%,var(--line))}
.stat-label{display:block;font-size:.78rem;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.stat strong{display:block;font-size:1.55rem;font-weight:750;letter-spacing:-.02em;margin:.25rem 0 .1rem;font-variant-numeric:tabular-nums}
.stat small{display:block;color:var(--muted);font-size:.85rem;line-height:1.45}
.warn{
  margin:1.1rem 0 0;padding:.85rem 1rem;border-radius:10px;
  background:#fdf6e3;border:1px solid #e7cf8a;color:#5c4a12;font-size:.97rem;
}
.summary-box{margin-top:1.2rem;background:color-mix(in srgb,var(--brand) 5%,var(--surface));border:1px solid color-mix(in srgb,var(--brand) 22%,var(--line));border-radius:12px;padding:1.1rem 1.2rem}
.summary-box p{margin:0 0 .9rem;font-size:1.02rem}
.actions{display:flex;flex-wrap:wrap;gap:.6rem}
.btn{
  appearance:none;font:inherit;font-size:.95rem;font-weight:650;cursor:pointer;
  padding:.6rem 1.15rem;border-radius:999px;border:1px solid var(--brand);
  background:#fff;color:var(--brand);
}
.btn:hover{background:color-mix(in srgb,var(--brand) 7%,#fff)}
.btn.primary{background:var(--brand);color:#fff}
.btn.primary:hover{background:#5b21b6}
.copied{color:var(--brand);font-size:.9rem;margin:.7rem 0 0}

/* ranking */
.rank-intro{color:var(--ink);max-width:48rem;text-wrap:pretty}
.rank-filter{max-width:320px;margin:0 0 1.1rem}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
.rank-table{border-collapse:collapse;width:100%;min-width:760px;font-size:.95rem}
.rank-table thead th{
  background:color-mix(in srgb,var(--brand) 10%,var(--surface));
  text-align:left;font-size:.74rem;letter-spacing:.07em;text-transform:uppercase;
  padding:.7rem .8rem;border-bottom:1px solid var(--line);white-space:nowrap;
}
.rank-table td{padding:.6rem .8rem;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums;white-space:nowrap}
.rank-table tbody tr:nth-child(even){background:var(--surface2)}
.rank-table td:last-child,.rank-table th:last-child{font-weight:700}
.fineprint{color:var(--muted);font-size:.88rem;margin-top:1rem}

/* prose */
.prose ul{padding-left:1.2rem;margin:.4rem 0 1rem}
.prose li{margin-bottom:.55rem;text-wrap:pretty}

/* footer */
footer{border-top:1px solid var(--line);margin-top:2rem}
.foot-in{padding:1.4rem 1.25rem 2rem;color:var(--muted);font-size:.92rem}

@media (max-width:560px){
  .stat strong{font-size:1.35rem}
  .card{padding:1.2rem 1rem}
}
@media (prefers-color-scheme: dark){
  :root{
    --ink:#f4f1ea;--muted:#a8a29e;--bg:#141412;--surface:#1d1c1a;--surface2:#262522;
    --line:rgba(255,255,255,.12);
  }
  .field input,.field select{background:#262522;color:var(--ink)}
  .warn{background:#2e2a17;border-color:#6b5d24;color:#f3dfa0}
  .btn{background:transparent}
  .btn:hover{background:color-mix(in srgb,var(--brand) 25%,transparent)}
}

.calc-row { margin-top: 16px; }

.combo { position: relative; display: block; }
.combo-menu {
  position: absolute; left: 0; right: 0; top: calc(100% + 4px);
  max-height: 264px; overflow-y: auto; z-index: 40;
  background: #fff; border: 1px solid #d6d3e0; border-radius: 10px;
  box-shadow: 0 12px 32px rgba(30, 10, 60, .18); padding: 4px;
}
.combo-item {
  display: block; width: 100%; text-align: left; padding: 9px 10px;
  border: 0; background: transparent; border-radius: 7px;
  font: inherit; font-size: 15px; color: #1c1830; cursor: pointer;
}
.combo-item:hover, .combo-item.active { background: #efeafd; }
.combo-empty { padding: 9px 10px; font-size: 14px; color: #6b6580; }
@media (prefers-color-scheme: dark) {
  .combo-menu { background: #1d1a2b; border-color: #3a3550; }
  .combo-item { color: #eceaf4; }
  .combo-item:hover, .combo-item.active { background: #2c2750; }
}