*{box-sizing:border-box} :root{--ink:#172033;--muted:#667085;--line:#e4e9f0;--bg:#f7f9fc;--card:#fff;--green:#18895e;--green-dark:#0d6947;--green-soft:#ecf8f2;--blue:#4169e1;--gold:#eab73f;--shadow:0 18px 48px rgba(22,34,55,.08)}
html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-wrap{width:min(1180px,calc(100% - 32px));min-height:64px;margin:auto;display:flex;align-items:center;gap:22px}.brand{font-size:18px;font-weight:950;text-decoration:none;color:var(--ink)}.brand span{color:var(--green)}
nav{display:flex;gap:24px;margin-left:auto}nav a,.back{font-size:12px;font-weight:800;color:#526071;text-decoration:none}nav a.active,nav a:hover,.back:hover{color:var(--green)}
.back{display:none}
.page{width:min(1180px,calc(100% - 32px));margin:auto;padding:30px 0 52px}
.hero{position:relative;min-height:300px;padding:36px;display:grid;grid-template-columns:1.25fr .75fr;align-items:center;border:1px solid #dcebe3;border-radius:26px;background:linear-gradient(135deg,#f4fbf7,#fff);overflow:hidden;box-shadow:var(--shadow)}
.eyebrow,.panel-eyebrow{font-size:10px;letter-spacing:.12em;font-weight:950;color:var(--green)}
.hero h1{font-size:clamp(31px,4.5vw,52px);line-height:1.02;letter-spacing:-.045em;margin:12px 0 14px;max-width:720px}.hero p{max-width:700px;color:var(--muted);font-size:14px;line-height:1.7;margin:0}
.hero-pills{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}.hero-pills span{padding:7px 10px;border-radius:999px;border:1px solid #dce8e1;background:#fff;font-size:10px;font-weight:800;color:#53616f}
.hero-art{position:relative;min-height:230px}.ring{position:absolute;border:1px solid #b8e0cc;border-radius:50%}.r1{width:215px;height:215px;right:25px;top:3px}.r2{width:150px;height:150px;right:58px;top:35px;border-color:#f1d89b}
.hero-house{position:absolute;right:82px;top:80px;width:88px;height:88px;display:grid;place-items:center;border-radius:26px;background:#fff;box-shadow:0 15px 30px rgba(26,94,67,.12);font-size:47px;animation:float 4s ease-in-out infinite}
.hero-bubble{position:absolute;padding:8px 10px;border-radius:11px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 22px rgba(22,34,55,.07);font-size:10px;font-weight:900;animation:float 4.8s ease-in-out infinite}.b1{right:13px;top:28px}.b2{left:38px;top:77px;animation-delay:.7s}.b3{right:10px;bottom:24px;animation-delay:1.2s}.b4{left:50px;bottom:15px;animation-delay:1.8s}
@keyframes float{50%{transform:translateY(-7px)}}

.tool-panel,.results,.how,.disclaimer{margin-top:20px;padding:23px;border:1px solid var(--line);border-radius:21px;background:#fff;box-shadow:0 8px 24px rgba(22,34,55,.04)}
.panel-title,.result-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.panel-title h2,.result-head h2,.how h2{margin:4px 0 4px;font-size:22px;line-height:1.25;letter-spacing:-.02em}.panel-title .reset{border:1px solid var(--line);border-radius:10px;background:#fff;padding:8px 11px;font-size:11px;font-weight:850;color:#657184;cursor:pointer}
.inputs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px;margin-top:20px}.field.wide{grid-column:1/-1}.field>label{display:block;font-size:11px;font-weight:900;color:#465267;margin-bottom:7px}
select,input{width:100%;height:44px;padding:0 12px;border:1px solid #d9e1ea;border-radius:10px;background:#fff;color:var(--ink);font:inherit;font-size:12px;outline:none}select:focus,input:focus{border-color:#77b99a;box-shadow:0 0 0 3px rgba(24,137,94,.09)}
.choice-row{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.person-row{grid-template-columns:repeat(4,1fr)}
.choice{border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px;text-align:left;cursor:pointer;transition:.18s;min-height:64px}.choice strong{display:block;font-size:12px;font-weight:900}.choice small{display:block;margin-top:3px;font-size:9px;line-height:1.35;color:var(--muted)}.choice.selected{border-color:#7bbd9f;background:var(--green-soft);box-shadow:0 0 0 2px rgba(24,137,94,.08)}
.distance-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.distance{padding:11px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;min-height:66px}.distance strong{display:block;font-size:11px;font-weight:900}.distance small{display:block;margin-top:4px;font-size:9px;color:var(--muted)}.distance.selected{border-color:#7bbd9f;background:var(--green-soft)}
.stepper{display:grid;grid-template-columns:38px 1fr 38px;gap:6px}.stepper button{border:1px solid var(--line);border-radius:10px;background:#fff;font-size:18px;font-weight:800;cursor:pointer}.stepper input{text-align:center}
.calc-cta{display:flex;align-items:center;gap:14px;margin-top:20px}.calculate-btn{min-height:46px;padding:0 18px;border:0;border-radius:11px;background:var(--green);color:#fff;font-size:12px;font-weight:950;cursor:pointer;box-shadow:0 9px 20px rgba(24,137,94,.18);transition:.18s}.calculate-btn:hover{background:var(--green-dark);transform:translateY(-1px)}.calc-cta small{font-size:9px;line-height:1.4;color:#7c8796}
.result-head p,.how p{margin:0;color:var(--muted);font-size:11px;line-height:1.55}.total-box{min-width:190px;padding:14px 16px;border-radius:15px;background:var(--green-soft);border:1px solid #d8eee2;text-align:right}.total-box span{font-size:9px;color:#718174;font-weight:800}.total-box strong{display:block;margin-top:2px;font-size:30px;line-height:1;font-weight:950;color:var(--green-dark)}.total-box small{font-size:10px;color:#617269}
.result-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:16px;margin-top:18px}.breakdown-card,.insight-card{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff}.card-title{display:flex;gap:11px;align-items:flex-start}.card-title>span{font-size:22px;line-height:1}.card-title h3{margin:0;font-size:15px}.card-title p{margin:3px 0 0;font-size:10px;color:var(--muted)}
.bar-line{margin-top:16px}.bar-label{display:flex;justify-content:space-between;gap:12px;font-size:11px;font-weight:850}.bar-label strong{color:var(--green-dark)}.bar{height:7px;margin-top:6px;border-radius:999px;background:#eef2f5;overflow:hidden}.bar i{display:block;height:100%;width:0;background:var(--green);border-radius:999px;transition:width .7s ease}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}.chips span{padding:6px 8px;border-radius:999px;background:#f7f9fb;border:1px solid var(--line);font-size:9px;font-weight:850;color:#596579}.insight{margin-top:15px;padding:13px;border-radius:12px;background:#fff9ed;border:1px solid #f1dfb7;font-size:11px;line-height:1.55;color:#6b5b44}.per-head-box{margin-top:12px;padding:14px;border-radius:12px;background:#faf7fc;border:1px solid #eae3f0}.per-head-box span{font-size:9px;color:var(--muted)}.per-head-box strong{display:block;margin-top:3px;font-size:24px;color:#5f4588}.per-head-box small{font-size:9px;color:#7c8796}
.how{display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(135deg,#fff,#f8fcfa)}.formula{display:flex;align-items:center;gap:7px;flex-wrap:wrap;justify-content:flex-end}.formula span{padding:8px 10px;border-radius:999px;border:1px solid #dce8e1;background:#fff;font-size:9px;font-weight:850}.formula b{font-size:11px;color:var(--green)}
.disclaimer{background:#fffdf8;border-color:#eee3c5}.disclaimer strong{font-size:11px;color:#7b5c1e}.disclaimer p{margin:4px 0 0;font-size:10px;line-height:1.6;color:#746956}.disclaimer code{background:#f7f0dd;padding:1px 4px;border-radius:4px}
footer{text-align:center;padding:26px 16px 38px;color:#8c96a4;font-size:10px}

@media(max-width:850px){nav{display:none}.back{display:block;margin-left:auto}.hero{grid-template-columns:1fr;padding:28px}.hero-art{min-height:190px}.hero-house{right:50%;transform:translateX(50%)}.r1{right:calc(50% - 107px)}.r2{right:calc(50% - 75px)}.distance-grid{grid-template-columns:repeat(2,1fr)}.person-row{grid-template-columns:repeat(2,1fr)}.result-grid{grid-template-columns:1fr}.how{display:block}.formula{justify-content:flex-start;margin-top:14px}}
@media(max-width:600px){.page{padding-top:18px}.hero{border-radius:19px;padding:22px}.hero h1{font-size:29px}.hero p{font-size:12px}.tool-panel,.results,.how,.disclaimer{padding:17px;border-radius:17px}.inputs{grid-template-columns:1fr;gap:14px}.field.wide{grid-column:auto}.choice-row,.person-row,.distance-grid{grid-template-columns:1fr 1fr}.calc-cta{display:block}.calculate-btn{width:100%}.calc-cta small{display:block;margin-top:8px}.result-head{display:block}.total-box{text-align:left;margin-top:13px}.total-box strong{font-size:28px}.formula{gap:5px}.formula span{font-size:8px}.formula b{font-size:9px}}
@media(max-width:380px){.choice-row,.person-row,.distance-grid{grid-template-columns:1fr}.hero-art{min-height:170px}.hero-bubble{font-size:9px}}


.data-note{
  margin-top:14px;
  padding:11px 13px;
  border:1px solid #eadbe2;
  border-radius:10px;
  background:#fff8fb;
  color:#7b5c6a;
  font-size:10.5px;
  line-height:1.5
}
.data-note strong{color:#9a3658}

/* Mobile header: return to main CalQube home */
@media (max-width: 700px) {
  .mobile-home {
    display: inline-flex;
  }
}