/* ===========================================================
   SHARED CORE STYLES
   - Reset + tokens
   - Buttons
   - Overlay flow (qualifier / gate / result)
   - Sticky mobile CTA
   - Utility
   Brand-specific layout CSS lives in /brand/<code>.css
   =========================================================== */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;
  color:var(--text,#1a1f2b);
  background:var(--bg,#fff);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{list-style:none}
input,select,textarea{font:inherit;color:inherit}

:root{
  --radius:10px;
  --shadow:0 4px 14px rgba(0,0,0,.06),0 1px 3px rgba(0,0,0,.04);
  --shadow-lg:0 12px 36px rgba(0,0,0,.12),0 4px 10px rgba(0,0,0,.06);
}

.container{max-width:1080px;margin:0 auto;padding:0 24px}

body.overlay-open{overflow:hidden}

/* ====== Buttons ====== */
.btn{
  display:inline-block;padding:14px 24px;border-radius:var(--radius);
  font-weight:600;font-size:1rem;line-height:1.2;
  transition:transform .12s,box-shadow .12s,background .15s,color .15s;
  text-align:center;text-decoration:none;cursor:pointer;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg);text-decoration:none}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn-ghost{background:transparent;color:var(--primary);border:1.5px solid currentColor}
.btn-ghost:hover{background:var(--surface);text-decoration:none}
.btn-lg{padding:18px 32px;font-size:1.05rem}
.btn-sm{padding:8px 14px;font-size:.92rem}

.small{font-size:.86rem;color:var(--muted)}
.eyebrow{
  display:inline-block;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.14em;
  color:var(--accent);margin-bottom:14px;
}
.disclaimer{font-size:.78rem;color:var(--muted);line-height:1.55;max-width:720px}

/* ====== Overlay system (qualifier / gate / result) ====== */
#overlay-root[aria-hidden="true"]{pointer-events:none;opacity:0;visibility:hidden}
#overlay-root{
  position:fixed;inset:0;background:rgba(255,255,255,.98);z-index:1000;
  overflow-y:auto;transition:opacity .25s;
}
.overlay-view{display:none;min-height:100vh;padding:48px 24px 96px}
.overlay-view.active{display:block}
.overlay-container{max-width:680px;margin:0 auto;position:relative}
.overlay-close{
  position:absolute;top:-8px;right:0;width:44px;height:44px;border-radius:50%;
  background:var(--surface);font-size:1.6rem;line-height:1;color:var(--muted);cursor:pointer;
  display:flex;align-items:center;justify-content:center;border:0;
}
.overlay-close:hover{background:rgba(0,0,0,.08);color:var(--text)}

.progress{position:fixed;top:0;left:0;right:0;height:4px;background:rgba(0,0,0,.08);z-index:1001}
.progress-bar{height:100%;background:var(--primary);width:0%;transition:width .35s ease}
.progress-label{color:var(--muted);font-size:.85rem;font-weight:700;letter-spacing:.06em;margin-bottom:14px;text-transform:uppercase}

.qualifier{padding-top:24px}
#q-text{font-size:clamp(1.5rem,3.2vw,2.05rem);color:var(--primary);margin-bottom:14px;line-height:1.22}
.helper{color:var(--muted);font-size:1rem;margin-bottom:28px;line-height:1.55}
.options{display:grid;gap:12px}
.option{
  display:block;text-align:left;padding:18px 22px;border:2px solid rgba(0,0,0,.08);background:#fff;
  border-radius:var(--radius);transition:all .15s;cursor:pointer;width:100%;font:inherit;color:inherit;
}
.option:hover{border-color:var(--primary)}
.option.selected{background:var(--primary);color:#fff;border-color:var(--primary)}
.option .option-label{font-weight:600;font-size:1.05rem;display:block}
.option .option-hint{font-size:.88rem;color:var(--muted);margin-top:4px;display:block}
.option.selected .option-hint{color:rgba(255,255,255,.85)}
.qualifier-nav{display:flex;justify-content:space-between;margin-top:32px;gap:12px}

.gate h2{font-size:clamp(1.5rem,3vw,1.9rem);color:var(--primary);margin-bottom:8px;line-height:1.25}
.gate .helper{margin-bottom:28px}
#gate-form{display:grid;gap:16px}
#gate-form label{display:block;font-size:.9rem;color:var(--muted);font-weight:600}
#gate-form input,#gate-form select{
  display:block;width:100%;margin-top:6px;padding:14px 16px;font-size:1rem;
  border:1.5px solid rgba(0,0,0,.12);border-radius:var(--radius);background:#fff;color:var(--text);
  transition:border-color .15s;
}
#gate-form input:focus,#gate-form select:focus{outline:none;border-color:var(--primary)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.result h2{font-size:clamp(1.7rem,3.4vw,2.2rem);color:var(--primary);margin-bottom:24px;line-height:1.2}
.result-bullets{display:grid;gap:14px;margin-bottom:36px}
.result-bullets li{
  padding:16px 20px 16px 48px;background:var(--surface);border-radius:var(--radius);position:relative;color:var(--text);
}
.result-bullets li::before{
  content:"✓";position:absolute;left:18px;top:16px;color:var(--accent);font-weight:700;font-size:1.1rem;
}
#result-cta{display:block;text-align:center;width:100%;margin-bottom:18px}

/* ====== Sticky mobile CTA ====== */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;padding:12px 14px calc(12px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid rgba(0,0,0,.08);z-index:900;
  transform:translateY(110%);transition:transform .25s ease;
}
.sticky-cta.visible{transform:translateY(0)}
.sticky-cta .btn{width:100%}
body.overlay-open .sticky-cta{display:none}
@media (min-width:880px){.sticky-cta{display:none}}

@media (max-width:640px){
  .qualifier-nav{flex-direction:column-reverse}
  .qualifier-nav .btn{width:100%}
}