/* Validation landing - single stylesheet, no build step, no external assets. */

:root{
  --bg:#fbfaf8; --bg-alt:#f2efe9; --surface:#ffffff;
  --ink:#1a1a19; --ink-soft:#5b5a55; --line:#e2ded5;
  --accent:#1f6f5c; --accent-ink:#ffffff; --accent-soft:#e6f1ee;
  --danger:#a8302a; --ok:#1f6f5c;
  --radius:14px; --wrap:1080px; --narrow:640px;
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#141513; --bg-alt:#1c1e1b; --surface:#1f221f;
    --ink:#eceae4; --ink-soft:#a5a49d; --line:#32352f;
    --accent:#5fbfa3; --accent-ink:#0f1211; --accent-soft:#20302b;
    --danger:#e8837c;
  }
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:var(--font); font-size:17px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--accent)}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2rem,5.5vw,3.25rem)}
h2{font-size:clamp(1.5rem,3.5vw,2.1rem)}
h3{font-size:1.1rem}
p{margin:0 0 1em}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:var(--narrow)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:10;background:var(--surface);padding:10px 14px;border-radius:8px}

/* ---- header ---- */
.site-head{border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:5}
.head-row{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:16px}
.logo{font-weight:650;letter-spacing:-.01em}

/* ---- buttons ---- */
.btn{
  display:inline-block;border:1px solid transparent;border-radius:10px;
  padding:12px 20px;font:inherit;font-weight:600;text-decoration:none;
  cursor:pointer;transition:transform .06s ease,opacity .15s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{opacity:.9}
.btn-primary[disabled]{opacity:.55;cursor:progress}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent;padding:9px 16px}

/* ---- sections ---- */
.hero{padding:clamp(48px,9vw,96px) 0 clamp(40px,7vw,72px)}
.hero .lead{font-size:clamp(1.05rem,2.2vw,1.25rem);color:var(--ink-soft);max-width:36ch}
.eyebrow{font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:650;margin-bottom:.75em}
.section{padding:clamp(40px,7vw,80px) 0}
.section-alt{background:var(--bg-alt)}
.privacy{background:var(--accent-soft)}
.note{color:var(--ink-soft);font-size:.92rem}
.microtrust{color:var(--ink-soft);font-size:.9rem;margin-top:14px}

/* ---- cards ---- */
.cards{list-style:none;display:grid;gap:16px;margin:0;padding:0}
.cards-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.cards-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card p:last-child{margin-bottom:0}
.price-card.featured{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.price{font-size:1.5rem;font-weight:700;margin:.2em 0 .6em}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.ticks li{padding-left:24px;position:relative;color:var(--ink-soft)}
.ticks li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.pricing-grid{margin-bottom:20px}

/* ---- forms ---- */
.signup{display:grid;gap:12px;max-width:var(--narrow);margin:28px 0 0}
.signup input[type=email],.survey textarea{
  width:100%;padding:13px 15px;font:inherit;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
}
.signup input[type=email]:focus-visible,.survey textarea:focus-visible,
.btn:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.signup input[aria-invalid="true"]{border-color:var(--danger)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--ink-soft);line-height:1.45}
.consent input{margin-top:3px;flex:0 0 auto}
.form-msg{margin:0;font-size:.92rem;min-height:1.3em}
.form-msg.is-error{color:var(--danger)}
.form-msg.is-ok{color:var(--ok);font-weight:600}
@media (min-width:560px){
  .signup{grid-template-columns:1fr auto;align-items:start}
  .signup .consent,.signup .form-msg{grid-column:1/-1}
}

.survey{margin-top:32px;padding-top:28px;border-top:1px solid var(--line);display:grid;gap:20px}
.survey fieldset{border:0;padding:0;margin:0;display:grid;gap:8px}
.survey legend{font-weight:650;padding:0;margin-bottom:8px}
.survey label{display:flex;gap:10px;align-items:flex-start;color:var(--ink-soft)}
.survey .field{display:grid;gap:8px}
.survey .btn{justify-self:start}

/* ---- faq / footer ---- */
details{border-bottom:1px solid var(--line);padding:14px 0}
summary{cursor:pointer;font-weight:600}
details p{margin:10px 0 0;color:var(--ink-soft)}
.site-foot{border-top:1px solid var(--line);padding:28px 0;color:var(--ink-soft);font-size:.9rem}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* Standalone checkbox inside a radio fieldset: it measures a different axis than the
   radios above it, so it needs visual separation or people read it as a fourth option. */
.survey .standalone-check{
  margin-top:10px;padding-top:12px;border-top:1px solid var(--line);
  color:var(--ink);font-weight:500;
}
.survey .sub-field{
  margin:2px 0 6px 26px;display:grid;gap:6px;
}
.survey .sub-field input[type=text]{
  width:100%;padding:10px 13px;font:inherit;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
}
.survey .sub-field input[type=text]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.survey legend{line-height:1.4}

/* Typo hint under the e-mail field. Spans the whole signup grid so it does not squeeze
   the input or the button on the two-column layout. */
.email-hint{
  grid-column:1/-1;margin:-4px 0 0;font-size:.9rem;color:var(--ink-soft);
}
.link-btn{
  background:none;border:0;padding:0;font:inherit;color:var(--accent);
  text-decoration:underline;cursor:pointer;
}
.link-btn:hover{opacity:.8}
.link-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}

/* Pre-purchase intent block. Deliberately not styled like a checkout: same card
   language as the rest of the page, no urgency, no price badge. */
.intent{
  margin-top:28px;padding:22px;border:1px solid var(--accent);
  border-radius:var(--radius);background:var(--surface);
}
.intent h3{margin-bottom:.4em}
.intent p{color:var(--ink-soft)}
.intent .btn{margin-top:4px}
.intent .form-msg{margin-top:12px}