/* Simple yet sophisticated: institutional, white + royal blue, minimal visual noise */
:root{
  --bg:#ffffff;
  --text:#0b1220;
  --muted:#5b677a;
  --blue:#133a8a;
  --blue2:#0f2f72;
  --line:#e6eaf2;
  --card:#ffffff;
  --shadow: 0 8px 28px rgba(11,18,32,.08);
  --radius:16px;
  --focus: 0 0 0 3px rgba(19,58,138,.18);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji"}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:1060px;margin:0 auto;padding:22px}

.topbar{position:sticky;top:0;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line);z-index:5}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand__title{font-weight:700;font-size:18px;letter-spacing:.2px}
.brand__sub{font-size:12px;color:var(--muted);margin-top:2px}
.meta{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}

.pill{border:1px solid var(--line);border-radius:999px;padding:6px 10px;font-size:12px;color:var(--muted);background:#fff}
.pill.big{padding:10px 12px;font-size:13px}

.hero{padding:18px 0 10px}
h1{font-size:34px;line-height:1.15;margin:0 0 10px}
.lead{font-size:16px;color:var(--muted);max-width:820px;margin:0 0 14px}

.ctaRow{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow);margin:16px 0}
.cardHead{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;flex-wrap:wrap}

h2{margin:0 0 10px;font-size:18px}
.muted{color:var(--muted)}
.small{font-size:12px}
.hidden{display:none}
.sr-only{position:absolute;left:-9999px}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:840px){
  .grid2{grid-template-columns:1fr}
  h1{font-size:28px}
}

.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.field input[type="text"], .field input[type="email"], .field input[type="number"], .field select{
  width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 12px;font-size:14px;outline:none;background:#fff;
}
.field input:focus, .field select:focus{box-shadow:var(--focus);border-color:rgba(19,58,138,.4)}
.field .hint{font-size:12px;color:var(--muted);margin-top:6px}

.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);
  padding:11px 14px;font-size:14px;font-weight:600;
  background:#fff;color:var(--text);cursor:pointer;user-select:none;
}
.btn:hover{border-color:rgba(19,58,138,.35)}
.btn:focus{outline:none;box-shadow:var(--focus)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue2);border-color:var(--blue2)}
.btn.ghost{background:#fff}

.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);max-width:900px}
.check input{margin-top:3px}

.seg{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:#fff}
.seg.small{margin:10px 0 14px;max-width:420px}
.seg__btn{
  padding:9px 12px;border:0;background:transparent;font-weight:700;font-size:13px;color:var(--muted);cursor:pointer
}
.seg__btn.active{color:#fff;background:var(--blue)}
.seg__btn:focus{outline:none;box-shadow:var(--focus)}

.steps{display:flex;flex-direction:column;gap:12px;margin-top:10px}
.step{border:1px solid var(--line);border-radius:14px;padding:12px;background:#fff}
.step__title{font-weight:800;font-size:13px;margin-bottom:10px}

.rangeRow{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);margin-top:6px}
.rangeVal{font-weight:800;color:var(--text)}
input[type="range"]{width:100%}

.result{margin-top:14px;border-top:1px solid var(--line);padding-top:14px}
.result__grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
@media (max-width:840px){.result__grid{grid-template-columns:1fr}}
.kpiLabel{font-size:12px;color:var(--muted)}
.kpiVal{font-size:28px;font-weight:900;letter-spacing:.2px;margin-top:6px}
.kpiVal.small{font-size:15px;font-weight:800}
.kpiUnit{font-size:12px;color:var(--muted);margin-top:2px}

.interpret{
  margin-top:12px;
  background:rgba(19,58,138,.06);
  border:1px solid rgba(19,58,138,.16);
  padding:12px;border-radius:14px;
  font-size:13px;color:var(--text);
}

.bullets{margin:8px 0 0 18px;color:var(--text)}
.bullets li{margin:6px 0}
.footer{padding:14px 0 30px;text-align:center}

.diagGrid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:10px 0 12px}
@media (max-width:840px){.diagGrid{grid-template-columns:1fr}}


.pill--link{
  text-decoration:none;
  cursor:pointer;
}
.pill--link:hover{
  filter: brightness(0.95);
}