@import"https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;1,400&family=DM+Sans:wght@300;400;500&family=JetBrains+Mono:wght@400;500&display=swap";*{box-sizing:border-box;margin:0;padding:0}body{background:#fff;color:#111;font-family:DM Sans,sans-serif;min-height:100vh}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:#f5f5f5}::-webkit-scrollbar-thumb{background:#ddd;border-radius:2px}.serif{font-family:Playfair Display,serif}.mono{font-family:JetBrains Mono,monospace}.muted{color:#888}.nav{display:flex;align-items:center;justify-content:space-between;padding:0 2rem;height:56px;border-bottom:1px solid #EBEBEB;background:#fff;position:sticky;top:0;z-index:100}.logo{font-family:Playfair Display,serif;font-size:20px;cursor:pointer;display:flex;align-items:center;gap:8px}.logo-dot{width:7px;height:7px;background:#b8860b;border-radius:50%}.nav-link{cursor:pointer;transition:color .15s;font-size:13px;color:#999}.nav-link:hover{color:#111}.nav-cta{font-size:13px;font-weight:500;background:#111;color:#fff;border:none;padding:7px 16px;border-radius:6px;cursor:pointer}.btn-gold{background:#111;color:#fff;border:none;padding:10px 22px;border-radius:7px;font-size:14px;font-weight:500;cursor:pointer}.btn-gold:hover{opacity:.85}.btn-outline{background:transparent;color:#111;border:1px solid #DDD;padding:10px 22px;border-radius:7px;font-size:14px;cursor:pointer}.btn-outline:hover{border-color:#999}.btn-sm{padding:6px 14px;font-size:12px;border-radius:5px}.card{background:#fafafa;border:1px solid #EBEBEB;border-radius:12px;padding:1.5rem}.card-sm{background:#fafafa;border:1px solid #EBEBEB;border-radius:10px;padding:1rem}.badge{display:inline-block;font-size:10px;font-weight:500;padding:3px 9px;border-radius:100px;font-family:JetBrains Mono,monospace;letter-spacing:.05em}.badge-gold{background:#fdf6e3;color:#8b6914;border:1px solid #EDE0B0}.badge-green{background:#f0faf4;color:#1a7a45}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.grid5{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.section{padding:4rem 2rem;max-width:960px;margin:0 auto}.section-sm{padding:2rem;max-width:960px;margin:0 auto}.page-fade{animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.progress-bar{height:4px;background:#ebebeb;border-radius:2px;overflow:hidden}.progress-fill{height:100%;border-radius:2px;transition:width .5s}.tab{font-size:13px;padding:8px 14px;cursor:pointer;color:#999;border-bottom:2px solid transparent;transition:all .15s;background:none;border-top:none;border-left:none;border-right:none}.tab.active{color:#111;border-bottom-color:#111}.input{background:#fafafa;border:1px solid #DDD;border-radius:7px;padding:10px 14px;font-size:14px;color:#111;width:100%;font-family:DM Sans,sans-serif}.input:focus{outline:none;border-color:#999}.chat-bubble-user{background:#111;color:#fff;border-radius:12px 12px 4px;padding:12px 16px;font-size:14px;max-width:80%;align-self:flex-end}.chat-bubble-ai{background:#f5fbf7;border:1px solid #C8E6D0;border-radius:12px 12px 12px 4px;padding:12px 16px;font-size:14px;max-width:85%;align-self:flex-start;line-height:1.7;color:#111}.answer-opt{background:#fafafa;border:1px solid #EBEBEB;border-radius:8px;padding:12px 16px;cursor:pointer;transition:all .15s;font-size:14px;text-align:left;color:#111;width:100%}.answer-opt:hover{border-color:#bbb}.answer-opt.selected{border-color:#b8860b;background:#fffbf0}.answer-opt.correct{border-color:#1a7a45;background:#f0faf4}.answer-opt.wrong{border-color:#c0392b;background:#fdf0ef}.quick-btn{background:#fff;border:1px solid #EBEBEB;border-radius:7px;padding:8px 10px;font-size:11px;color:#888;cursor:pointer;text-align:left;width:100%}.quick-btn:hover{border-color:#ccc;color:#111}@keyframes ticker{0%{transform:translate(0)}to{transform:translate(-50%)}}