:root{
  --blue:#1835DD; --blue-ink:#1835DD; --blue-soft:#E8ECFD; --blue-line:#C3CCF6;
  --bg:#FFFFFF; --paper:#FFFFFF; --fg:#111111; --muted:#5B6166; --line:#D3D9DA; --soft:#E8EDED; --row:#F2F5F5; --alert:#1835DD;
  --f-sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --blue-ink:#8C9EFF; --blue-soft:#1A1F3F; --blue-line:#2F3A80;
  --bg:#111111; --paper:#17191C; --fg:#F2F4F5; --muted:#A3AAAF; --line:#2A2E33; --soft:#202327; --row:#1B1D20; color-scheme:dark}}
:root[data-theme="dark"]{
  --blue-ink:#8C9EFF; --blue-soft:#1A1F3F; --blue-line:#2F3A80;
  --bg:#111111; --paper:#17191C; --fg:#F2F4F5; --muted:#A3AAAF; --line:#2A2E33; --soft:#202327; --row:#1B1D20; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font-family:var(--f-sans);font-weight:400;font-size:16px;line-height:1.6;margin:0;font-feature-settings:"cv11","ss01"}
h1,h2,h3{font-weight:600;letter-spacing:-0.03em;line-height:1.15;text-wrap:balance;margin:0}
strong,th{font-weight:600}
.wrap{max-width:720px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.top{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:center;gap:12px;height:60px}
.logo{height:24px;width:auto;display:block}.logo-d{display:none}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .logo-l{display:none}:root:not([data-theme="light"]) .logo-d{display:block}}
:root[data-theme="dark"] .logo-l{display:none}:root[data-theme="dark"] .logo-d{display:block}
main{padding-block:28px 64px}
.band{position:relative;overflow:hidden;background:var(--blue);color:#fff;border-radius:22px;padding:36px 32px 32px}
.band h1{font-size:clamp(30px,5vw,46px);letter-spacing:-.04em;margin-bottom:12px;position:relative}
.band p{max-width:min(46ch,64%);margin:0;opacity:.95;position:relative}
@media (max-width:700px){.band p{max-width:none}}
.pillo{position:absolute;right:0;bottom:22px;width:min(30%,240px);height:70px;border:1.5px solid rgba(255,255,255,.5);border-right:0;border-radius:999px 0 0 999px}
.pillb{position:absolute;right:0;bottom:32px;width:min(26%,205px);height:50px;background:#fff;opacity:.14;border-radius:999px 0 0 999px}
@media (max-width:700px){.pillo,.pillb{display:none}}
.progress{position:sticky;top:60px;z-index:10;background:var(--bg);padding:12px 0 10px}
.bar{height:6px;background:var(--soft);border-radius:999px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--blue);border-radius:999px;transition:width .25s}
.bar-l{font-size:13px;color:var(--muted);margin-top:6px}
.sec{margin:34px 0 0;padding-top:20px;border-top:1px solid var(--line)}
.sec h3{font-size:20px}
.q{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:20px 22px;margin-top:14px}
.q .qn{font-family:var(--f-sans);font-weight:500;font-size:12px;color:var(--blue-ink);margin-bottom:6px}
.q .qt{font-weight:500;font-size:16.5px;margin-bottom:14px}
.q .opt-tag{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.choices{display:flex;flex-wrap:wrap;gap:8px}
.choices button{font:inherit;font-size:14.5px;font-weight:500;border:1px solid var(--line);background:var(--paper);color:var(--fg);border-radius:999px;padding:8px 16px;cursor:pointer;min-height:40px}
.choices button:hover{border-color:var(--blue)}
.choices button[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.scale button{min-width:44px;padding:8px 0;justify-content:center;text-align:center}
.scale-legend{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:6px;max-width:520px}
textarea,input[type=text]{width:100%;font:inherit;font-size:15px;color:var(--fg);background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:10px 12px}
textarea{min-height:84px;resize:vertical}
textarea:focus,input[type=text]:focus{outline:2px solid var(--blue);outline-offset:1px;border-color:transparent}
.submit{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:24px}
.btn{font:inherit;font-weight:600;font-size:15px;border:0;border-radius:999px;padding:12px 24px;background:var(--blue);color:#fff;cursor:pointer}
.btn:disabled{opacity:.5;cursor:default}
.btn.ghost{background:transparent;color:var(--blue-ink);border:1px solid var(--blue-line)}
.err{color:var(--blue-ink);font-size:14px;font-weight:500}
.done{text-align:center;padding:48px 24px;border:1px solid var(--line);border-radius:22px;margin-top:24px}
.done h2{font-size:clamp(26px,4vw,36px);margin-bottom:10px}
.done p{color:var(--muted);margin:0 auto;max-width:44ch}
.foot{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 14px;justify-content:space-between}
.foot b{color:var(--blue-ink);font-weight:600}
@media (prefers-reduced-motion: reduce){.bar i{transition:none}}