:root{
  --s:#2f9ec9;--a:#c98a3a;--m:#4a4dd3;--max:1240px}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Montserrat',sans-serif;color:var(--ink);background:#fff;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;letter-spacing:-.02em}
img{max-width:100%;display:block}a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--blue);color:#fff;font-family:'Poppins';font-weight:600;font-size:16px;padding:15px 30px;border-radius:999px;border:0;cursor:pointer;transition:.2s}
.btn:hover{background:#26279b;transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line)}.btn.ghost:hover{border-color:var(--ink)}
.eyebrow{font-family:'Poppins';font-weight:600;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue2)}
.ann{background:var(--blue);color:#fff;text-align:center;font-size:13px;font-weight:500;padding:9px 16px}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-family:'Poppins';font-weight:700;font-size:23px;color:var(--blue)}.logo span{color:var(--ink)}
.nav ul{display:flex;gap:30px;list-style:none}.nav ul a{font-family:'Poppins';font-weight:500;font-size:15px}.nav ul a:hover{color:var(--blue)}
.nav .right{display:flex;align-items:center;gap:16px}.nav .right a{font-size:19px}
@media(max-width:860px){.nav ul{display:none}}
/* quiz stage */
.stage{min-height:78vh;display:flex;align-items:center;justify-content:center;padding:50px 24px;background:linear-gradient(180deg,var(--blue-soft),#fff)}
.shell{max-width:760px;width:100%;text-align:center}
.progress{display:flex;gap:8px;justify-content:center;margin-bottom:30px}
.progress i{width:46px;height:6px;border-radius:999px;background:#dcdce8;display:block;transition:.3s}
.progress i.on{background:var(--blue)}
.screen{display:none}.screen.show{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.qnum{font-family:'Poppins';font-weight:600;font-size:13px;color:var(--blue2);letter-spacing:.1em;text-transform:uppercase}
.shell h1{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.1;margin:10px 0}
.shell .lead{color:var(--muted);font-size:17px;max-width:520px;margin:0 auto}
.qh{font-size:clamp(22px,3vw,30px);font-weight:700;margin:14px 0 26px}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:14px;text-align:left}
.optbtn{border:1.5px solid var(--line);background:#fff;border-radius:16px;padding:20px 22px;cursor:pointer;transition:.18s;font-family:'Montserrat'}
.optbtn:hover{border-color:var(--blue);background:var(--blue-soft);transform:translateY(-2px)}
.optbtn .ot{font-family:'Poppins';font-weight:600;font-size:17px;color:var(--ink)}
.optbtn .od{font-size:13.5px;color:var(--muted);margin-top:5px}
.startbtn{margin-top:26px}
.back{margin-top:22px;background:none;border:0;color:var(--muted);font-family:'Poppins';font-weight:600;font-size:14px;cursor:pointer}
.back:hover{color:var(--blue)}
/* result */
.rcard{background:#fff;border:1px solid var(--line);border-radius:26px;padding:40px;box-shadow:0 40px 80px -50px rgba(48,49,187,.5);max-width:680px;margin:0 auto;text-align:center}
.rbadge{font-family:'Poppins';font-weight:600;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.rletter{font-family:'Poppins';font-weight:800;font-size:64px;line-height:1;margin:10px 0}
.rname{font-size:26px;font-weight:700}
.rwhy{color:var(--muted);font-size:16px;max-width:480px;margin:12px auto 24px}
.rimg{width:200px;margin:18px auto 6px;border-radius:18px;overflow:hidden}
.ralt{margin-top:26px;border-top:1px solid var(--line);padding-top:20px}
.ralt .lbl{font-family:'Poppins';font-weight:600;font-size:13px;color:var(--muted);margin-bottom:12px}
.alts{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.altchip{border:1px solid var(--line);border-radius:12px;padding:10px 16px;font-family:'Poppins';font-weight:600;font-size:13.5px;color:#3a3a48}
@media(max-width:680px){.opts{grid-template-columns:1fr}}