:root{--purple:#493867;--purple-light:#eee9f5;--teal:#255f60;--ink:#252332;--muted:#5c5968;--border:#d9d4df;--paper:#faf8f3;--error:#922e30;font-family:Arial,Helvetica,sans-serif;font-size:18px;color:var(--ink);background:var(--paper);line-height:1.55}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button{border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:10px;padding:11px 19px;min-height:48px;font-weight:600;line-height:1.4}button:hover:not(:disabled){border-color:var(--purple);background:var(--purple-light)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--teal);outline-offset:4px}.primary{background:var(--purple);color:#fff;border-color:var(--purple)}.primary:hover:not(:disabled){background:#382750;color:#fff}.text-button{border:0;background:transparent;padding:8px;color:var(--purple);font-weight:500}.danger{color:var(--error)}a{color:var(--purple)}[hidden]{display:none!important}
header{max-width:1360px;margin:auto;padding:24px 42px;display:flex;align-items:center;justify-content:space-between;gap:24px}#brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--purple)}.brand-icon{font-size:2.4rem}#brand strong{font-size:1.3rem;display:block;line-height:1.25}#brand small{font-size:.65rem;letter-spacing:.15em}.header-tag{border:1px solid var(--border);border-radius:100px;padding:6px 18px;color:var(--teal);font-size:.9rem}.release-notice{padding:12px 24px;background:#f5e8cf;color:#593e10;text-align:center;font-size:.85rem;border-block:1px solid #d6b475}.storage-notice:empty{display:none}.storage-notice{max-width:1150px;margin:14px auto;padding:12px 20px;background:#fbe9e6;color:#762526;border:1px solid #d9b0ac}main{max-width:1150px;margin:0 auto;min-height:65vh;padding:44px 26px 70px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2rem,4.2vw,3.4rem);line-height:1.12;letter-spacing:-.035em}h2{font-size:1.6rem;line-height:1.3}h3{font-size:1.15rem;line-height:1.4}p{margin-bottom:20px}.kicker{font-size:.75rem;letter-spacing:.13em;color:var(--teal);font-weight:700;text-transform:uppercase;margin-bottom:12px}.lead{font-size:1.15rem;max-width:62ch;color:var(--muted)}.intro-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:50px;align-items:start}.card{border:1px solid var(--border);border-radius:18px;background:#fff;padding:28px}.steps{padding-left:24px;margin:24px 0}.steps li{margin:14px 0;padding-left:6px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.field{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}.field label,legend{font-weight:700;font-size:.95rem}input,select{padding:12px;border:1px solid #aba5b4;border-radius:8px;background:#fff;color:var(--ink);width:100%;min-height:48px}fieldset{border:0;margin:0;padding:0}legend{margin-bottom:12px}.level-options{display:grid;gap:10px;margin-bottom:22px}.level-choice{display:flex;align-items:center;gap:12px;border:1px solid var(--border);border-radius:10px;padding:14px;cursor:pointer}.level-choice:has(input:checked){border:2px solid var(--purple);background:var(--purple-light);padding:13px}.level-choice input{width:20px;height:20px;min-height:20px;accent-color:var(--purple);flex:none}.fine{font-size:.85rem;color:var(--muted);line-height:1.6}.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px}.topline{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:12px}.tag{font-size:.85rem;background:var(--purple-light);color:var(--purple);padding:6px 12px;border-radius:8px}.progress-text{font-weight:700}progress{width:100%;height:8px;accent-color:var(--teal);display:block;margin-bottom:28px}.work-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:26px;align-items:start}.question h1{font-size:clamp(1.45rem,2.4vw,2rem);line-height:1.35;letter-spacing:-.02em}.selection-rule{font-weight:700;color:var(--teal);margin-bottom:18px}.listen-box{background:#edf5f2;border:1px solid #cfdfd8;border-radius:12px;padding:20px;margin:22px 0}.listen-box audio{width:100%;display:block;height:48px;margin:14px 0}.listen-box .actions{margin:0}.audio-state{margin:12px 0 0;font-size:.85rem}.audio-state:empty{display:none}.options{display:grid;gap:12px}.option{display:flex;align-items:center;text-align:left;gap:14px;width:100%;padding:16px;font-size:1.05rem;font-weight:500;background:#fff}.option .letter{flex:none;display:grid;place-items:center;width:32px;height:32px;border:1px solid var(--border);border-radius:7px;color:var(--purple);font-weight:700}.option[aria-checked=true]{border:2px solid var(--purple);background:var(--purple-light);padding:15px}.option[aria-checked=true] .letter{background:var(--purple);color:#fff;border-color:var(--purple)}.option .choice-label{flex:1}.selection-count{font-size:.85rem;margin:14px 0;color:var(--muted)}.question-nav{display:flex;gap:12px;justify-content:space-between;margin-top:28px;padding-top:22px;border-top:1px solid var(--border)}.question-nav button{max-width:55%}.jump-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.jump-grid button{min-height:42px;padding:5px;border-radius:8px}.jump-grid button.answered{background:#e7f0eb;border-color:#80a292}.jump-grid button.current{outline:3px solid var(--purple);outline-offset:1px}.side-card{padding:22px}.side-card h2{font-size:1rem;margin-bottom:14px}.side-card .actions{display:grid;gap:8px;margin-top:18px}.saved-line{font-size:.8rem;color:var(--muted);margin:18px 0 0}.review-row{display:grid;grid-template-columns:1fr auto;gap:18px;padding:22px 0;border-bottom:1px solid var(--border);align-items:start}.review-row p{margin:8px 0;font-size:.95rem}.unanswered{color:var(--error);font-weight:700}.summary-box{background:var(--purple-light);border-radius:14px;padding:22px;margin:20px 0}.summary-box p:last-child{margin-bottom:0}.score{font-size:3.2rem;font-weight:700;line-height:1.2;color:var(--purple)}.result-heading{display:flex;gap:24px;align-items:center;flex-wrap:wrap}.feedback-item{padding:22px 0;border-top:1px solid var(--border)}.feedback-item summary{cursor:pointer;font-weight:700;padding:8px 0;min-height:44px}.feedback-item p{margin:12px 0}.score-mark{color:var(--teal);margin-right:10px}.file-actions{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0}.file-actions a{display:inline-flex;align-items:center;padding:11px 18px;background:#fff;border:1px solid var(--border);border-radius:10px;min-height:48px;text-decoration:none;font-weight:600}.submission-steps li{margin:10px 0}.warning{background:#fff4dc;border:1px solid #d5b674;padding:18px;border-radius:10px}.note-panel{border-left:4px solid var(--teal);padding:16px 20px;background:#edf5f2;margin:20px 0}.skip{position:absolute;top:-100px;left:12px;padding:12px;background:white;z-index:10}.skip:focus{top:8px}footer{max-width:1250px;margin:auto;padding:24px 30px;border-top:1px solid var(--border);font-size:.75rem;display:flex;gap:20px;justify-content:space-between;align-items:center;color:var(--muted)}dialog{border:1px solid var(--border);border-radius:18px;padding:30px;max-width:600px;width:calc(100% - 32px);max-height:90vh;overflow:auto;color:var(--ink);box-shadow:0 20px 80px #0004}dialog::backdrop{background:#232031a8}dialog p{line-height:1.6}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(max-width:900px){.intro-grid{gap:28px}.work-layout{grid-template-columns:1fr}.side-card{order:2}.side-card .jump-grid{max-width:520px;grid-template-columns:repeat(10,1fr)}.side-card .actions{display:flex;flex-wrap:wrap}.form-grid{grid-template-columns:1fr;gap:0}}
@media(max-width:680px){:root{font-size:17px}header{padding:18px 20px}main{padding:28px 16px 50px}.intro-grid{grid-template-columns:1fr;gap:20px}.card{padding:22px}.lead{font-size:1.05rem}.header-tag{font-size:.8rem;padding:5px 12px}.form-grid{grid-template-columns:1fr 1fr;gap:12px}.release-notice{padding:10px 16px;text-align:left}.work-layout{gap:18px}.question-nav button{padding:10px 14px}.review-row{grid-template-columns:1fr;gap:6px}.review-row button{justify-self:start}.side-card .jump-grid{grid-template-columns:repeat(5,1fr)}footer{align-items:start;flex-direction:column;gap:8px}.file-actions>*{width:100%;justify-content:center}.option{font-size:1rem}.form-grid input{min-width:0}}
@media(max-width:380px){.form-grid{grid-template-columns:1fr;gap:0}.card{padding:18px}.listen-box{padding:14px}.listen-box .actions button{flex:1;padding:10px 12px}.question-nav{gap:8px}.brand-icon{display:none}}
@media(prefers-reduced-motion:no-preference){button{transition:background .15s,border-color .15s}}
.learning-feedback{margin-top:38px}.feedback-filters{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}.feedback-filters button[aria-pressed=true]{background:var(--purple);color:white;border-color:var(--purple)}.feedback-item{border:1px solid var(--border);border-radius:14px;background:white;margin:18px 0;padding:0}.feedback-item[hidden]{display:none}.feedback-item summary{display:flex;align-items:start;gap:16px;padding:22px;line-height:1.5}.feedback-status{flex:none;font-size:.8rem;padding:5px 10px;border-radius:6px;background:#fff0dd;color:#703a0a}.feedback-correct .feedback-status{background:#e7f0eb;color:#214e3c}.feedback-body{padding:0 24px 24px}.feedback-body p{margin:16px 0;line-height:1.6}.feedback-body h3{margin:0 0 12px}.correct-answer{padding:14px 18px;background:#edf5f2;border-left:4px solid var(--teal)}.answer-comparison{padding:18px;background:#faf5ef;border-radius:10px;margin:20px 0}.listen-again{padding:22px;background:#f3f0f8;border-radius:12px;margin-top:22px}.listen-again audio{display:block;width:100%;margin:20px 0 14px}.listen-again .actions{margin-top:12px}.feedback-body .fine{font-size:.85rem}@media(max-width:680px){.feedback-item summary{flex-direction:column;gap:10px;padding:20px}.feedback-body{padding:0 18px 20px}.listen-again{padding:16px}.listen-again .actions button{flex:1}.feedback-filters button{flex:1}}

.period-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.period-options small{display:block;font-size:.78rem;line-height:1.5;margin-top:5px;color:#585064}.period-options .level-choice{min-height:76px}.period-options strong{display:block}fieldset{margin-bottom:24px}button:disabled{cursor:not-allowed;opacity:.55}@media(max-width:520px){.period-options{grid-template-columns:1fr}.header-tag{display:none}}

.level-choice small{display:block;font-size:.8rem;line-height:1.5;margin-top:4px}.intro-grid h1{font-size:clamp(1.8rem,3.5vw,3rem)}