@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,700;0,9..144,900;1,9..144,400&family=Cabinet+Grotesk:wght@400;500;600;700;800;900&display=swap');
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
:root{--blue:#3B5BDB;--blue-light:#EEF2FF;--blue-mid:#C5D0FA;--green:#0CA678;--green-light:#E6FBF5;--green-mid:#A3E9D3;--orange:#F76707;--orange-light:#FFF3EE;--orange-mid:#FBCBAE;--purple:#7048E8;--purple-light:#F3F0FF;--purple-mid:#C9B8FF;--ink:#0A0E1A;--ink2:#2D3250;--ink3:#5C6280;--ink4:#9BA3BF;--rule:#E8EAF2;--rule2:#D4D8EE;--bg:#F5F6FC;--white:#FFFFFF;--s1:0 1px 3px rgba(10,14,26,.07),0 1px 2px rgba(10,14,26,.05);--s2:0 4px 16px rgba(10,14,26,.09),0 2px 6px rgba(10,14,26,.05);--s3:0 12px 40px rgba(10,14,26,.12),0 4px 16px rgba(10,14,26,.06);--s4:0 24px 64px rgba(10,14,26,.14),0 8px 24px rgba(10,14,26,.08);--r1:8px;--r2:14px;--r3:20px;--r4:28px}
html{scroll-behavior:smooth}
body{font-family:'Cabinet Grotesk',sans-serif;background:var(--bg);color:var(--ink);min-height:100vh;display:flex;justify-content:center;align-items:flex-start}
.shell{width:100%;max-width:430px;min-height:100vh;background:var(--white);display:flex;flex-direction:column;position:relative}
@media(min-width:431px){
  body{padding:24px 0;background:#DFE2F0;align-items:center}
  .shell{min-height:auto;border-radius:36px;overflow:hidden;box-shadow:var(--s4)}
}
/* Full-width override for homepage */
@media(min-width:768px){
  body.full-width{padding:0;background:#F0F2F9;align-items:flex-start}
  body.full-width .shell{border-radius:0;box-shadow:none;max-width:100%;min-height:100vh}
}
.nav{padding:16px 20px 14px;display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--rule);position:sticky;top:0;z-index:80;flex-shrink:0}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.nav-brand-wheel{transition:transform .6s cubic-bezier(.17,.67,.12,.99);flex-shrink:0}
.nav-brand:hover .nav-brand-wheel{transform:rotate(360deg)}
.nav-brand-name{font-family:'Fraunces',serif;font-size:22px;font-weight:900;color:var(--ink);letter-spacing:-.5px}
.nav-brand-name em{color:var(--blue);font-style:normal}
.nav-pills{display:flex;align-items:center;gap:8px}
.pill{display:flex;align-items:center;gap:5px;border-radius:20px;padding:5px 11px;font-size:13px;font-weight:800}
.pill-streak{background:var(--orange-light);border:1.5px solid var(--orange-mid);color:var(--orange)}
.pill-coin{background:var(--bg);border:1.5px solid var(--rule);color:var(--ink2)}
.nav-back{width:36px;height:36px;border-radius:10px;background:var(--bg);border:1.5px solid var(--rule);display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:18px;color:var(--ink3);transition:background .15s}
.nav-back:hover{background:var(--rule)}
.btn{display:block;width:100%;padding:16px;border-radius:var(--r2);border:none;font-family:'Cabinet Grotesk',sans-serif;font-size:15px;font-weight:800;cursor:pointer;text-align:center;text-decoration:none;transition:transform .1s,box-shadow .1s}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--blue);color:white;box-shadow:0 4px 16px rgba(59,91,219,.3)}
.btn-secondary{background:white;color:var(--ink2);border:1.5px solid var(--rule)}
.sec-label{padding:20px 20px 8px;font-size:11px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink4)}
.answer-list{display:flex;flex-direction:column;gap:10px}
.answer-list:focus{outline:none}
.answer-list button:focus{outline:none}
.answer-btn{display:flex;align-items:center;gap:12px;background:var(--white);border:1.5px solid var(--rule2);border-radius:var(--r1);padding:14px 16px;font-family:'Cabinet Grotesk',sans-serif;font-size:14px;font-weight:600;color:var(--ink);cursor:pointer;text-align:left;line-height:1.4;transition:all .15s;width:100%;outline:none}
.answer-letter{width:28px;height:28px;border-radius:7px;background:var(--bg);border:1.5px solid var(--rule);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;color:var(--ink4);flex-shrink:0;transition:all .15s}
.answer-btn:focus{outline:none;border-color:var(--rule2);background:var(--white)}
.answer-btn:focus .answer-letter{background:var(--bg);border-color:var(--rule);color:var(--ink4)}
.answer-btn:hover:not(.disabled):not(:focus-visible){border-color:var(--blue);background:var(--blue-light)}
.answer-btn:hover:not(.disabled):not(:focus-visible) .answer-letter{background:var(--blue);border-color:var(--blue);color:white}
.answer-btn:focus-visible:not(.disabled){border-color:var(--blue);background:var(--blue-light)}
.answer-btn:focus-visible:not(.disabled) .answer-letter{background:var(--blue);border-color:var(--blue);color:white}
.answer-btn.correct{border-color:var(--green);background:var(--green-light)}
.answer-btn.correct .answer-letter{background:var(--green);border-color:var(--green);color:white}
.answer-btn.incorrect{border-color:#E03131;background:#FFF5F5}
.answer-btn.incorrect .answer-letter{background:#E03131;border-color:#E03131;color:white}
.answer-btn.reveal{border-color:var(--green);background:var(--green-light)}
.answer-btn.reveal .answer-letter{background:var(--green);border-color:var(--green);color:white}
.answer-btn.disabled{pointer-events:none;outline:none}
.explain-box{margin-top:14px;padding:14px 16px;border-radius:var(--r1);font-size:13px;font-weight:500;line-height:1.65;display:none}
.explain-box.show{display:block}
.explain-box.correct{background:var(--green-light);color:#065F46;border-left:3px solid var(--green)}
.explain-box.incorrect{background:#FFF5F5;color:#9B1C1C;border-left:3px solid #E03131}
.explain-label{font-weight:800;font-size:14px;margin-bottom:3px}
.progress-track{height:6px;background:var(--rule);border-radius:4px;overflow:hidden}
.progress-fill{height:100%;border-radius:4px;transition:width .5s cubic-bezier(.22,1,.36,1)}
.cpa-letter{width:34px;height:40px;border-radius:8px;border:2px solid var(--rule);background:var(--bg);display:flex;align-items:center;justify-content:center;font-family:'Fraunces',serif;font-size:18px;font-weight:700;color:var(--rule2);transition:all .3s}
.cpa-letter.you{border-color:var(--blue-mid);background:var(--blue-light);color:var(--blue);animation:cpapop .35s ease}
.cpa-letter.opp{border-color:var(--orange-mid);background:var(--orange-light);color:var(--orange);animation:cpapop .35s ease}
@keyframes cpapop{0%{transform:scale(1)}50%{transform:scale(1.3)}100%{transform:scale(1)}}
.scroll-body{flex:1;overflow-y:auto}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(16px);background:var(--ink);color:white;padding:10px 20px;border-radius:24px;font-size:13px;font-weight:700;opacity:0;transition:all .25s;pointer-events:none;z-index:999;white-space:nowrap;box-shadow:var(--s3)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.site-footer{margin-top:auto;padding:24px 20px 28px;border-top:1px solid var(--rule);background:var(--white);flex-shrink:0}
.footer-brand{font-family:'Fraunces',serif;font-size:16px;font-weight:900;color:var(--ink);margin-bottom:6px}
.footer-brand em{color:var(--blue);font-style:normal}
.footer-tagline{font-size:12px;color:var(--ink4);font-weight:500;margin-bottom:16px}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 16px;margin-bottom:14px}
.footer-links a{font-size:12px;font-weight:700;color:var(--ink3);text-decoration:none;transition:color .15s}
.footer-links a:hover{color:var(--blue)}
.footer-legal{font-size:11px;color:var(--ink4);line-height:1.6}