:root{--ink:#0b2231;--teal:#1bcead;--muted:#526579;--line:#dce7e8;--paper:#f6f9f8}
*{box-sizing:border-box}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper);color:var(--ink);line-height:1.6}button,input,select,textarea{font:inherit}.app{max-width:1120px;margin:0 auto;background:white;box-shadow:0 20px 90px #0926320a;border-radius:0;overflow:hidden}.hidden{display:none!important}a{color:inherit}header{padding:0;background:radial-gradient(ellipse at 75% 70%,#153b49,#071b2a 85%);position:relative;color:white}.showcase-nav{min-height:88px;padding:20px 44px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid #ffffff20}.showcase-brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:13px;letter-spacing:.16em;font-weight:800}.showcase-brand b{font-weight:400;color:#8dd9cc}.showcase-mark{display:grid;place-items:center;border:2px solid var(--teal);border-radius:11px;width:43px;height:43px;font-size:26px;letter-spacing:-.12em;padding-right:4px}.showcase-mark span{color:var(--teal)}.back-link{font-size:12px;color:#d2e9e6;text-decoration:none;border:1px solid #79d6c666;border-radius:6px;padding:9px 14px}.back-link:hover{background:#ffffff12}.showcase-heading{padding:44px 44px 38px;background-image:linear-gradient(#ffffff04 1px,transparent 1px),linear-gradient(90deg,#ffffff04 1px,transparent 1px);background-size:50px 50px}.showcase-eyebrow{font-size:10px;letter-spacing:.18em;font-weight:800;color:#a6e6d8}h1,h2{letter-spacing:-.045em;line-height:1.15}header h1{font-size:clamp(36px,6vw,60px);margin:18px 0 12px}header h1 em{color:var(--teal);font-style:normal}header p{color:#bad1d5;margin:0 0 20px}.subject-tags{display:flex;flex-wrap:wrap;gap:8px}.subject-tags span{padding:5px 11px;border:1px solid #7ae0c84a;color:#a6e6d8;border-radius:30px;font-size:10px;letter-spacing:.04em}main{padding:28px 44px 48px}h2{font-size:28px;margin:28px 0 18px}h3{line-height:1.4}.control-box{border:1px solid var(--line);background:#fff;border-radius:12px;padding:22px;margin:16px 0 24px}.control-box h3{margin:0 0 6px;font-size:17px}.control-box>p{color:var(--muted);font-size:13px}#subjectControls{background:#f3f9f6;border-color:#cfe5dd;padding:20px 24px}#subjectControls label{font-size:11px;text-transform:uppercase;letter-spacing:.14em;margin-right:16px}#subjectSelect{border:1px solid #afcfc5;border-radius:6px;background:white;color:var(--ink)}#subjectNotice{font-size:13px;color:#30594e;margin:12px 0 8px}#subjectControls>p:last-child{font-size:11px!important;color:#60756e;margin-bottom:0}.quick-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin:18px 0 0}.quick-card{background:#f6faf8;border:1px solid var(--line);color:var(--muted);padding:22px;border-radius:9px;font-size:12px;line-height:1.7;min-height:132px}.quick-card strong{color:var(--ink);font-size:16px;letter-spacing:-.02em;margin-bottom:10px}.quick-card:hover,.topic-card:hover,.session-card:hover,.option:hover:not(:disabled){background:#edf9f4;border-color:#159e88}.topic-card,.session-card,.option{background:#fff;border:1px solid var(--line);border-radius:7px;color:var(--ink);padding:16px 20px;font-size:14px;transition:background .12s,border-color .12s}.topic-card strong{font-size:16px;display:block}.topic-card{color:var(--muted);font-size:12px}.primary-btn,.secondary-btn{font-size:12px;font-weight:750;border-radius:6px;min-height:44px;padding:12px 18px}.primary-btn{background:var(--teal);color:#072b30}.primary-btn:hover:not(:disabled){background:#63e5cb}.secondary-btn{background:#edf5f2;color:#20554b;border:1px solid #d1e7de}.secondary-btn:hover:not(:disabled){background:#dcefe6}button{cursor:pointer}button:disabled{cursor:default;opacity:.65}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible,input:focus-visible{outline:3px solid #e3aa4f;outline-offset:3px}#questionText{font-size:clamp(20px,3vw,28px);letter-spacing:-.02em;margin:24px 0}#progress,#scenarioProgress{color:#198570;font-size:11px;font-weight:800;letter-spacing:.08em}.feedback{border-left:4px solid #169a80;background:#f0faf6;color:#284d42;border-radius:7px;padding:20px}.good{color:#137957}.bad{color:#a63d30}.keyword-hit{background:#dcf4e8;color:#20503b}.keyword-miss{background:#faece7;color:#873b2b}.trap-box{background:#fff1ea;color:#873b2b;border:1px solid #eec5b7;font-size:17px;padding:18px}.error-box{background:#fff0eb;border-color:#b6533b;color:#823d2a}textarea{border:1px solid #bbd2ca;border-radius:7px;background:#fff;min-height:140px;color:var(--ink);resize:vertical}textarea:disabled{background:#f2f7f4;color:#526579}.scenario-part{border-color:var(--line);background:#f8fbf9}.scenario-feedback-part{background:#e9f7f0}#topics>h3{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#338374;margin-top:30px}.mock-paper,.exam-front{color:#152d3b}.checkbox-row{font-size:14px}input[type=checkbox],input[type=radio]{accent-color:#118974}
@media(max-width:640px){.showcase-nav{padding:18px 20px;gap:10px}.showcase-brand{font-size:10px;gap:8px}.showcase-mark{width:34px;height:34px;font-size:22px}.back-link{font-size:10px;padding:8px}.showcase-heading{padding:30px 22px}.showcase-eyebrow{font-size:8px}main{padding:16px 18px 32px}.control-box{padding:18px}#subjectControls{padding:18px}#subjectControls label{display:block;margin-bottom:8px}#subjectSelect{width:100%;font-size:14px!important}.quick-grid{grid-template-columns:1fr}.quick-card{min-height:105px;padding:18px}h2{font-size:24px}.primary-btn,.secondary-btn{margin-right:4px}.topic-card,.session-card,.option{padding:14px}.app{width:100%}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
@media print{body,.app{background:white;box-shadow:none}.app{max-width:none}header,.no-print,button{display:none!important}main{padding:0}.control-box,.feedback,.scenario-part{break-inside:avoid}.mock-question,.exam-question{break-inside:avoid}.hidden{display:none!important}}
.showcase-mark{display:flex;align-items:center;justify-content:center;line-height:1}.showcase-mark span{display:inline}