:root{
  --bg:#ffffff;
  --surface:#f7f7f8;
  --surface2:#f0f0f2;
  --ink:#0d0d0d;
  --ink2:#353740;
  --muted:#6e6e80;
  --dim:#8e8ea0;
  --line:#e5e5e5;
  --line2:#ececf1;
  --accent:#10a37f;
  --max:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
  -webkit-overflow-scrolling:touch;
  text-rendering:optimizeLegibility;
}
button,.chip,.seg button{touch-action:manipulation}
::selection{background:#d7f2ea}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.narrow{max-width:720px;margin:0 auto}

header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line2)}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-.02em;font-size:15.5px}
.brand svg{display:block}
nav{display:flex;align-items:center;gap:30px}
nav a{font-size:14.5px;color:var(--muted);transition:color .15s}
nav a:hover{color:var(--ink)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:500 15px/1 Inter,sans-serif;
  border:1px solid transparent;border-radius:9px;padding:11px 18px;cursor:pointer;
  transition:background .15s,border-color .15s}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#2d2d2d}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface)}
.btn-lg{padding:14px 24px;font-size:15.5px;border-radius:10px}
.btn-block{width:100%}

.hero{padding:96px 0 72px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);
  background:var(--surface);border:1px solid var(--line2);border-radius:999px;padding:6px 13px;margin-bottom:28px}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
h1{font-size:clamp(38px,5.4vw,60px);line-height:1.05;letter-spacing:-.032em;font-weight:600;margin:0 0 22px}
h1 em{font-style:normal;color:var(--muted)}
.hero p{font-size:clamp(17px,1.6vw,19px);color:var(--muted);max-width:640px;margin:0 auto 34px;line-height:1.5}
.hero .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero .trust{margin-top:26px;font-size:13.5px;color:var(--dim);display:flex;gap:22px;justify-content:center;flex-wrap:wrap}
.hero .trust span{display:inline-flex;align-items:center;gap:7px}
.tick{color:var(--accent);font-weight:700}

section{padding:88px 0;border-top:1px solid var(--line2)}
.sec-head{text-align:center;max-width:660px;margin:0 auto 52px}
h2{font-size:clamp(28px,3.2vw,38px);letter-spacing:-.025em;font-weight:600;margin:0 0 14px;line-height:1.15}
.sec-head p{color:var(--muted);font-size:17px;margin:0}

.calc{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:start}
.calc > *{min-width:0}
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px}
label{display:block;font-size:13.5px;font-weight:500;color:var(--ink2);margin-bottom:8px}
label .hint{font-weight:400;color:var(--dim)}
.field{margin-bottom:20px}
select,input{width:100%;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:11px 13px;font:400 15px Inter,sans-serif;color:var(--ink);outline:none;
  transition:border-color .15s,box-shadow .15s}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236e6e80' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
select:focus,input:focus{border-color:#b4b4bb;box-shadow:0 0 0 3px rgba(13,13,13,.06)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:13.5px;padding:8px 13px;border:1px solid var(--line);border-radius:999px;background:#fff;
  color:var(--ink2);cursor:pointer;user-select:none;transition:.12s;font-weight:450}
.chip:hover{border-color:#c9c9d1}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}

.result{position:sticky;top:86px;border:1px solid var(--line);border-radius:16px;padding:28px;background:#fff}
.result .k{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);font-weight:500}
.result .val{font-size:clamp(34px,3.6vw,44px);font-weight:600;letter-spacing:-.03em;margin:12px 0 4px;line-height:1.1}
.bar{height:5px;background:var(--surface2);border-radius:999px;overflow:hidden;margin:20px 0 6px}
.bar i{display:block;height:100%;width:8%;background:var(--accent);border-radius:999px;transition:width .35s cubic-bezier(.4,0,.2,1)}
.result .note{font-size:12.5px;color:var(--dim);line-height:1.5;margin-top:14px}
.result .btn{margin-top:22px}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{border:1px solid var(--line);border-radius:16px;padding:26px;background:#fff;transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:#d8d8dd;box-shadow:0 1px 3px rgba(13,13,13,.04)}
.card .num{font-size:12.5px;font-weight:600;color:var(--accent);letter-spacing:.04em;margin-bottom:14px}
.card h3{margin:0 0 8px;font-size:17.5px;font-weight:600;letter-spacing:-.01em}
.card p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.55}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.tags span{font-size:12px;color:var(--muted);background:var(--surface);border:1px solid var(--line2);border-radius:6px;padding:4px 9px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

.trustgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trustgrid h3{margin:0 0 8px;font-size:15px;font-weight:600}
.trustgrid p{margin:0;font-size:14px;color:var(--muted);line-height:1.5}
.trustgrid .ico{width:30px;height:30px;border-radius:8px;background:var(--surface);border:1px solid var(--line2);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;font-size:14px;color:var(--ink2)}

.faq details{border-bottom:1px solid var(--line2);padding:18px 0}
.faq summary{cursor:pointer;font-weight:500;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--dim);font-weight:400;font-size:19px;line-height:1}
.faq details[open] summary::after{content:"\2013"}
.faq p{color:var(--muted);font-size:15px;margin:12px 0 0;line-height:1.6;max-width:640px}

.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.fine{font-size:12.5px;color:var(--dim);margin-top:14px;text-align:center}
.form-msg{margin-top:16px;font-size:14px;border-radius:10px;padding:10px 14px;text-align:center}
.form-msg.ok{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.form-msg.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}

/* ---------- segmented control (app-style picker) ---------- */
.seg{display:flex;gap:5px;background:var(--surface);border:1px solid var(--line2);border-radius:12px;padding:5px}
.seg button{
  appearance:none;-webkit-appearance:none;border:0;background:transparent;flex:1 1 0;min-width:0;
  font:500 13px/1.2 Inter,sans-serif;color:var(--muted);padding:12px 4px;border-radius:8px;
  cursor:pointer;min-height:44px;transition:background .16s,color .16s,box-shadow .16s;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.seg button.on{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(13,13,13,.10),0 0 0 1px rgba(13,13,13,.04)}
.seg button:active{transform:scale(.98)}

/* ---------- logo wall ---------- */
.logoband{padding:52px 0;border-top:1px solid var(--line2)}
.logoband-label{text-align:center;color:var(--muted);font-size:14px;font-weight:500;margin:0 0 26px;letter-spacing:-.005em}
.logowall{display:grid;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));gap:12px}
.logotile{display:flex;align-items:center;justify-content:center;height:74px;border:1px solid var(--line);
  border-radius:14px;background:#fff;transition:border-color .15s,box-shadow .15s}
.logotile:hover{border-color:#d8d8dd;box-shadow:0 1px 3px rgba(13,13,13,.05)}
.logotile img{height:26px;width:auto;max-width:104px;object-fit:contain}
.logowall-note{text-align:center;color:var(--dim);font-size:13px;margin-top:22px}

/* ---------- mobile app bar ---------- */
.appbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;
  background:rgba(255,255,255,.93);backdrop-filter:saturate(180%) blur(16px);
  border-top:1px solid var(--line2);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  transform:translateY(110%);transition:transform .28s cubic-bezier(.32,.72,0,1);
}
.appbar.show{transform:translateY(0)}
.appbar-inner{display:flex;align-items:center;gap:12px;max-width:var(--max);margin:0 auto}
.appbar .est{flex:1 1 auto;min-width:0}
.appbar .est .k{font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);font-weight:500}
.appbar .est .v{font-size:17px;font-weight:600;letter-spacing:-.02em;line-height:1.2}
.appbar .btn{flex:0 0 auto}

@media(max-width:900px){
  .logowall{grid-template-columns:repeat(3,1fr);gap:10px}
  .logotile{height:66px}
  .logotile img{height:22px;max-width:88px}
}

footer{border-top:1px solid var(--line2);padding:40px 0;color:var(--dim);font-size:13.5px}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}

@media(max-width:900px){
  .calc{grid-template-columns:minmax(0,1fr)}.result{position:static}
  #seg-rev{display:grid;grid-template-columns:repeat(3,1fr)}
  .steps,.grid2,.trustgrid{grid-template-columns:1fr}
  .formgrid{grid-template-columns:1fr}
  nav a:not(.btn){display:none}
  .hero{padding:56px 0 40px}
  section{padding:56px 0}
  .appbar{display:block}
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  h1{letter-spacing:-.028em}
  .hero .trust{gap:10px 18px;font-size:13px}
  .panel,.result{padding:20px}
  .card{padding:20px}
  .wrap{padding:0 18px}
  .chip{padding:10px 14px;font-size:14px;min-height:42px;display:inline-flex;align-items:center}
  select,input{min-height:48px;font-size:16px}
  .btn-lg{padding:16px 24px}
  .btn{min-height:44px}
  .brand{padding:10px 0}
  footer .wrap{flex-direction:column;align-items:flex-start;gap:8px}
  .faq summary{padding:2px 0}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}