:root{
  --paper:#F6F9F7;
  --card:#FFFFFF;
  --ink:#16241F;
  --slate:#5A6B64;
  --line:#D9E2DD;
  --charge:#0E7C5B;
  --charge-soft:#E3F2EC;
  --amber:#D98A1F;
  --mono:'IBM Plex Mono',monospace;
  --display:'Archivo',sans-serif;
  --body:'Instrument Sans',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
a{color:inherit}
/* header */
header{position:sticky;top:0;background:rgba(246,249,247,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-family:var(--display);font-weight:900;font-size:1.25rem;letter-spacing:-.02em;text-decoration:none}
.logo span{color:var(--charge)}
.nav-links{display:flex;gap:28px;align-items:center;font-size:.95rem}
.nav-links a{text-decoration:none;color:var(--slate)}
.nav-links a:hover{color:var(--ink)}
.btn{display:inline-block;background:var(--ink);color:#fff;font-family:var(--body);font-weight:600;font-size:.95rem;padding:12px 22px;border-radius:8px;border:none;cursor:pointer;text-decoration:none;transition:transform .12s ease,background .12s ease}
.btn:hover{background:var(--charge);transform:translateY(-1px)}
.btn:disabled{opacity:.6;cursor:default;transform:none}
.btn:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible,.choice-card:focus-visible{outline:3px solid var(--charge);outline-offset:2px}
.btn-charge{background:var(--charge);color:#fff}
.btn-charge:hover{background:var(--ink);color:#fff}
/* Beat .nav-links a specificity (0,1,1) which otherwise wins over .btn-charge (0,1,0)
   and turns "Book a test" into unreadable green-on-green in the header. */
.nav-links a.btn-charge{color:#fff}
.nav-links a.btn-charge:hover{color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{background:#fff;border-color:var(--ink);transform:none}
/* hero */
.hero{padding:72px 0 64px;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--charge);margin-bottom:18px}
h1{font-family:var(--display);font-weight:900;font-size:clamp(2.2rem,4.6vw,3.4rem);line-height:1.06;letter-spacing:-.025em;margin-bottom:20px}
.hero p.lede{font-size:1.13rem;color:var(--slate);max-width:34rem;margin-bottom:30px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:20px;font-family:var(--mono);font-size:.8rem;color:var(--slate)}
/* certificate card */
.cert{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:0 20px 50px -30px rgba(22,36,31,.35)}
.cert-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:20px}
.cert-head .t{font-family:var(--mono);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--slate)}
.cert-head .id{font-family:var(--mono);font-size:.75rem;color:var(--charge)}
.gauge-wrap{display:flex;justify-content:center;margin-bottom:8px}
.gauge-num{font-family:var(--display);font-weight:900;font-size:2.6rem;letter-spacing:-.03em;fill:var(--ink)}
.gauge-lbl{font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;fill:#5A6B64}
.cert-rows{margin-top:10px}
.cert-row{display:flex;justify-content:space-between;padding:9px 0;border-top:1px dashed var(--line);font-size:.9rem}
.cert-row .k{color:var(--slate)}
.cert-row .v{font-family:var(--mono);font-size:.84rem}
.v.good{color:var(--charge);font-weight:500}
/* sections */
section{padding:76px 0}
.sec-head{max-width:40rem;margin-bottom:44px}
h2{font-family:var(--display);font-weight:900;font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-.02em;line-height:1.15;margin-bottom:14px}
.sec-head p{color:var(--slate)}
/* stats band */
.band{background:var(--ink);color:#EAF2EE;border-radius:16px;padding:44px 40px;display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.band .num{font-family:var(--display);font-weight:900;font-size:2rem;letter-spacing:-.02em;color:#fff}
.band .cap{font-size:.92rem;color:#9DB4AA;margin-top:6px;line-height:1.5}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px}
.step .n{font-family:var(--mono);font-size:.75rem;color:var(--charge);letter-spacing:.1em;margin-bottom:12px}
.step h3{font-family:var(--display);font-weight:700;font-size:1.08rem;margin-bottom:8px}
.step p{font-size:.95rem;color:var(--slate)}
/* pricing */
.prices{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:860px}
.price{background:var(--card);border:1.5px solid var(--line);border-radius:14px;padding:30px;display:flex;flex-direction:column}
.price.featured{border-color:var(--charge)}
.tag{align-self:flex-start;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;background:var(--charge-soft);color:var(--charge);padding:4px 10px;border-radius:99px;margin-bottom:14px}
.price h3{font-family:var(--display);font-weight:900;font-size:1.25rem;margin-bottom:4px}
.price .amt{font-family:var(--display);font-weight:900;font-size:2.1rem;letter-spacing:-.02em;margin:10px 0 4px}
.price .amt small{font-size:.95rem;font-weight:500;color:var(--slate)}
.price p.d{color:var(--slate);font-size:.95rem;margin-bottom:18px}
.inc{list-style:none;margin-bottom:24px;flex:1}
.inc li{padding:7px 0 7px 26px;position:relative;font-size:.93rem;border-top:1px dashed var(--line)}
.inc li::before{content:"";position:absolute;left:2px;top:14px;width:12px;height:12px;border-radius:3px;background:var(--charge-soft);border:1.5px solid var(--charge)}
/* models */
.models{display:flex;flex-wrap:wrap;gap:10px}
.model{font-family:var(--mono);font-size:.82rem;background:var(--card);border:1px solid var(--line);border-radius:99px;padding:8px 16px;color:var(--slate)}
.models-note{margin-top:18px;font-size:.9rem;color:var(--slate)}
/* faq */
.faq{max-width:760px}
details{background:var(--card);border:1px solid var(--line);border-radius:10px;margin-bottom:12px;overflow:hidden}
summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:1rem;list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);color:var(--charge);font-size:1.1rem}
details[open] summary::after{content:"–"}
details .a{padding:0 22px 20px;color:var(--slate);font-size:.96rem}
/* booking */
.booking{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:44px;max-width:820px;margin:0 auto}
.prog{display:flex;gap:8px;margin-bottom:34px}
.prog .p{flex:1;height:4px;border-radius:99px;background:var(--line);transition:background .3s}
.prog .p.on{background:var(--charge)}
.bstep.active{animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.bstep h3{font-family:var(--display);font-weight:900;font-size:1.35rem;margin-bottom:6px}
.bstep .sub{color:var(--slate);font-size:.95rem;margin-bottom:26px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}
input,select,textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:8px;font-family:var(--body);font-size:.95rem;background:#fff;color:var(--ink)}
input:hover,select:hover{border-color:#B9C7C0}
.choice{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:8px}
.choice-card{border:1.5px solid var(--line);border-radius:12px;padding:20px;cursor:pointer;background:#fff;transition:border-color .15s}
.choice-card:hover{border-color:#9FB5AB}
.choice-card.sel{border-color:var(--charge);background:var(--charge-soft)}
.choice-card h4{font-family:var(--display);font-weight:700;font-size:1rem;margin-bottom:4px}
.choice-card .cp{font-family:var(--mono);font-size:.82rem;color:var(--charge);margin-bottom:6px}
.choice-card p{font-size:.86rem;color:var(--slate)}
.bnav{display:flex;justify-content:space-between;margin-top:30px;gap:12px}
.review{border:1px dashed var(--line);border-radius:10px;padding:20px;margin-bottom:20px}
.review .r{display:flex;justify-content:space-between;padding:6px 0;font-size:.93rem}
.review .r .k{color:var(--slate)}
.review .r .v{font-family:var(--mono);font-size:.86rem;text-align:right}
.paynote{font-size:.86rem;color:var(--slate);background:var(--paper);border-radius:8px;padding:14px 16px;margin-bottom:8px}
.done{text-align:center;padding:30px 0}
.done .tick{width:64px;height:64px;border-radius:50%;background:var(--charge-soft);border:2px solid var(--charge);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:1.6rem;color:var(--charge)}
.err{color:#B4231F;font-size:.85rem;margin-top:10px}
/* footer */
footer{border-top:1px solid var(--line);padding:36px 0;margin-top:40px;font-size:.86rem;color:var(--slate)}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
/* blazor error ui (hidden unless triggered) */
#blazor-error-ui{display:none}
/* responsive */
@media(max-width:880px){
  .hero{grid-template-columns:1fr;padding-top:48px;gap:40px}
  .band{grid-template-columns:1fr;padding:34px 28px;gap:26px}
  .steps{grid-template-columns:1fr}
  .prices{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .choice{grid-template-columns:1fr}
  .booking{padding:28px 20px}
  .nav-links a:not(.btn){display:none}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}