:root{
  --mock-surface: color-mix(in oklab, var(--surface) 92%, transparent);
  --mock-table-border: color-mix(in oklab,var(--border) 55%,var(--text) 45%);
}

main.container{
  max-width:min(1680px,100% - 32px);
}

body.exam-active .site-header,
body.exam-active .site-footer,
body.exam-active #preExamContent{
  display:none;
}

.mock-hero{margin:40px 0 36px;display:flex;flex-direction:column;gap:16px}
.mock-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:color-mix(in oklab,var(--accent) 16%,var(--surface) 90%);color:var(--accent);font-weight:700;font-size:.85rem;letter-spacing:.2px}
.mock-hero h1{margin:0;font-size:clamp(28px,4.4vw,46px)}

.mock-guidelines{margin:40px 0}
.guideline-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.guideline-card{padding:18px;border:1px solid var(--border);border-radius:16px;background:var(--mock-surface);box-shadow:var(--shadow);display:grid;gap:8px}
.guideline-card h3{margin:0;font-size:1.05rem}
.guideline-card p{margin:0;color:var(--muted)}

.mock-exam-list{margin:54px 0}
.mock-exam-list__head{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.mock-exam-list h2{margin:0;font-size:1.8rem}
.mock-note{color:var(--muted);margin:0;font-size:.95rem}
.mock-note b{font-family:"Fira Code","Roboto Mono",monospace;font-size:.9rem}

.cvp-cases{display:grid;gap:18px;margin-top:12px;grid-template-columns:repeat(auto-fit,minmax(420px,1fr))}
.cvp-case{border:1.5px solid color-mix(in oklab,var(--border) 80%,var(--text) 20%);border-radius:16px;padding:18px;background:color-mix(in oklab,var(--surface) 97%,transparent);box-shadow:var(--shadow);display:grid;gap:14px}
.cvp-case h3{margin:0;font-size:1.18rem}
.cvp-case p{margin:0;color:var(--muted);line-height:1.7}
.cvp-case__grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.cvp-case__grid h4{margin:0;font-size:1rem}
.cvp-case__grid ul{margin:0;padding:12px;border:1px solid color-mix(in oklab,var(--border) 85%,var(--text) 15%);border-radius:10px;display:grid;gap:4px;color:var(--text);background:color-mix(in oklab,var(--surface) 98%,transparent);font-size:.92rem}
.cvp-price{margin:8px 0 0;color:var(--text);font-weight:600;border:1px solid color-mix(in oklab,var(--border) 85%,var(--accent) 15%);border-radius:10px;padding:10px;background:color-mix(in oklab,var(--surface) 98%,transparent)}

.exam-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.exam-card{padding:20px;border:1px solid var(--border);border-radius:18px;background:linear-gradient(180deg,color-mix(in oklab,var(--card) 94%,transparent),color-mix(in oklab,var(--surface) 86%,transparent));box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.exam-card h3{margin:0;font-size:1.2rem}
.exam-card p{margin:0;color:var(--muted)}
.exam-meta{display:flex;gap:12px;color:var(--muted);font-size:.9rem}
.exam-start{margin-top:auto;display:flex;gap:10px;flex-wrap:wrap}
.meta-chip{padding:3px 8px;border-radius:999px;border:1px solid var(--border);font-size:.82rem;background:var(--surface)}

.exam-board{margin:60px 0;border:1px solid var(--border);border-radius:20px;background:linear-gradient(180deg,color-mix(in oklab,var(--card) 94%,transparent),color-mix(in oklab,var(--surface) 86%,transparent));box-shadow:var(--shadow)}
.exam-board__header{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;padding:24px 28px 18px}
.board-status{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.board-timer{font-size:clamp(28px,5vw,44px);font-weight:700;font-variant-numeric:tabular-nums;color:color-mix(in oklab,var(--accent) 70%,var(--text) 30%)}
.board-timer.is-paused{color:color-mix(in oklab,#f97316 65%,var(--text) 35%)}
.board-progress{color:var(--muted);font-size:.95rem}

.exam-board__body{display:grid;grid-template-rows:auto minmax(0,1fr);border-top:1px solid var(--border);min-height:420px}
.section-tabs{background:color-mix(in oklab,var(--surface) 95%,transparent);border-bottom:1px solid color-mix(in oklab,var(--border) 85%,var(--text) 15%);padding:0 18px}
.section-tabs ol{list-style:none;margin:0;padding:12px 0;display:flex;gap:12px;overflow-x:auto;scrollbar-width:thin}
.section-tabs ol::-webkit-scrollbar{height:6px}
.section-tabs ol::-webkit-scrollbar-thumb{background:color-mix(in oklab,var(--border) 70%,var(--text) 30%);border-radius:999px}
.section-pill{min-width:180px;border-radius:14px;border:1px solid color-mix(in oklab,var(--border) 75%,var(--text) 25%);background:color-mix(in oklab,var(--surface) 98%,transparent);padding:10px 16px;display:flex;flex-direction:column;gap:4px;text-align:left;cursor:pointer;font:inherit;color:inherit;transition:background .18s,border .18s,box-shadow .18s;box-shadow:var(--shadow)}
.section-pill strong{font-size:1.02rem}
.section-pill span{color:var(--muted);font-size:.9rem}
.section-pill[aria-current="true"]{background:color-mix(in oklab,var(--accent) 16%,var(--surface) 90%);border-color:color-mix(in oklab,var(--accent) 45%,var(--border) 55%);box-shadow:0 0 0 2px color-mix(in oklab,var(--accent) 30%,transparent)}
.section-pill:disabled{opacity:.55;cursor:not-allowed}

.exam-board__main{padding:28px;display:flex;flex-direction:column;gap:18px}
.section-intro{display:grid;gap:12px;border:1px solid var(--border);border-radius:14px;padding:18px;background:color-mix(in oklab,var(--surface) 96%,transparent);box-shadow:var(--shadow);align-items:start}
.section-info{display:grid;gap:12px}
.section-info h3{margin:0;font-size:1.35rem}
.section-info p{margin:0;color:var(--muted);line-height:1.6}
.section-context{margin-top:6px;overflow-x:auto}
.section-context > *{margin:0}
.section-intro > .section-info{grid-column:1}
.section-intro > .section-memo{grid-column:1}

.section-memo{border:1.5px solid color-mix(in oklab,var(--border) 80%,var(--text) 20%);border-radius:12px;padding:12px;background:color-mix(in oklab,var(--surface) 96%,transparent);display:grid;gap:8px}
.section-memo header{display:flex;align-items:center;justify-content:space-between}
.section-memo h3{margin:0;font-size:1.05rem}
.section-memo textarea{width:100%;min-height:120px;border:1px solid color-mix(in oklab,var(--border) 85%,var(--text) 15%);border-radius:10px;padding:10px;font:inherit;background:var(--surface);resize:vertical}

.section-intro table:not(.costing-table),
.section-intro li table,
.section-memo table{border-collapse:collapse;margin-top:8px;width:auto}
.section-intro table:not(.costing-table) th,
.section-intro table:not(.costing-table) td,
.section-intro li table th,
.section-intro li table td,
.section-memo table th,
.section-memo table td{border:1px solid color-mix(in oklab,var(--border) 75%,var(--text) 25%);padding:8px 10px;text-align:left;background:color-mix(in oklab,var(--surface) 98%,transparent)}
.section-intro table:not(.costing-table) th,
.section-intro li table th,
.section-memo table th{text-align:center;font-weight:600;background:color-mix(in oklab,var(--surface) 94%,transparent)}
.section-memo textarea:focus{outline:2px solid color-mix(in oklab,var(--accent) 35%,transparent)}

.question-container{display:grid;gap:18px}
.question-container[data-section="numeric"]{grid-template-columns:repeat(auto-fit,minmax(360px,1fr));align-items:start}
.question-container[data-section="costing"]{grid-template-columns:1fr;align-items:start}

.question-block li table{border-collapse:collapse;margin-top:8px;width:auto}
.question-block li table th,
.question-block li table td{border:1px solid color-mix(in oklab,var(--border) 75%,var(--text) 25%);padding:8px 10px;text-align:left;background:color-mix(in oklab,var(--surface) 98%,transparent)}
.question-block li table th{text-align:center;font-weight:600;background:color-mix(in oklab,var(--surface) 94%,transparent)}
.question-block{border:1.5px solid color-mix(in oklab,var(--border) 80%,var(--text) 20%);border-radius:16px;padding:18px;background:color-mix(in oklab,var(--surface) 97%,transparent);box-shadow:var(--shadow)}
.question-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:10px}
.question-heading h4{margin:0;font-size:1.05rem}
.question-heading span{color:var(--muted);font-size:.85rem}
.question-text{margin:0 0 12px}

.costing-block{display:grid;gap:18px}
.costing-layout{display:grid;gap:18px;grid-template-columns:1fr}

.costing-materials table{border-collapse:collapse;margin-top:8px;width:auto}
.costing-materials table th,
.costing-materials table td{border:1px solid color-mix(in oklab,var(--border) 75%,var(--text) 25%);padding:8px 10px;text-align:left;background:color-mix(in oklab,var(--surface) 98%,transparent)}
.costing-materials table th{text-align:center;font-weight:600;background:color-mix(in oklab,var(--surface) 94%,transparent)}
.costing-materials{margin:0;padding:12px 16px;border-radius:14px;background:color-mix(in oklab,var(--surface) 95%,transparent);color:var(--text);display:grid;gap:8px;line-height:1.6;border:1.5px solid color-mix(in oklab,var(--border) 80%,var(--text) 20%)}
.costing-materials ul{margin:0;padding-left:1.2em;display:grid;gap:6px}
.costing-materials li{color:inherit}
.costing-tables{display:grid;gap:18px}
.costing-table-wrapper{overflow-x:auto;border:1.5px solid color-mix(in oklab,var(--border) 80%,var(--text) 20%);border-radius:14px;padding:12px;background:color-mix(in oklab,var(--surface) 98%,transparent)}
.costing-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.costing-table caption{caption-side:top;margin-bottom:8px;font-weight:600;text-align:left}
.costing-table th,.costing-table td{border:1.5px solid color-mix(in oklab,var(--border) 75%,var(--text) 25%);padding:10px 12px;text-align:right;background:color-mix(in oklab,var(--surface) 98%,transparent)}
.costing-table th{background:color-mix(in oklab,var(--surface) 94%,transparent);font-weight:600;text-align:center}
.costing-table th[scope="row"]{text-align:left}
.costing-input{display:flex;align-items:center;gap:6px;justify-content:flex-end;width:100%;border:1px solid color-mix(in oklab,var(--border) 85%,var(--text) 15%);border-radius:10px;padding:6px 10px;background:color-mix(in oklab,var(--surface) 98%,transparent);cursor:text}
.costing-input input{width:7em;border:0;border-radius:8px;padding:0;font:inherit;background:transparent;text-align:right;font-variant-numeric:tabular-nums}
.costing-input input:focus{outline:none}
.costing-input span{color:var(--muted);font-size:.85rem}
.costing-input:focus-within{border-color:color-mix(in oklab,var(--accent) 55%,var(--border) 45%);box-shadow:0 0 0 2px color-mix(in oklab,var(--accent) 35%,transparent)}
.costing-cell--prefill{color:var(--text);font-weight:600;background:color-mix(in oklab,var(--surface) 96%,transparent);text-align:right}
.costing-cell--locked{color:var(--muted);font-size:.9rem;text-align:center}
.costing-table input.is-correct{border-color:color-mix(in oklab,var(--accent-2) 60%,var(--border) 40%);background:color-mix(in oklab,var(--accent-2) 10%,var(--surface) 95%)}
.costing-table input.is-incorrect{border-color:color-mix(in oklab,#f87171 70%,var(--border) 30%);background:color-mix(in oklab,#f87171 12%,var(--surface) 96%)}
.choice-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.choice-option{border:1px solid var(--border);border-radius:12px;padding:10px 12px;display:flex;gap:12px;align-items:flex-start;cursor:pointer;transition:background .18s,border .18s}
.choice-option input{margin-top:4px}
.choice-option__label{flex:1}
.choice-option[data-selected="true"]{border-color:color-mix(in oklab,var(--accent) 50%,var(--border) 50%);background:color-mix(in oklab,var(--accent) 10%,var(--surface) 92%)}

.journal-entry-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.journal-entry-table th,.journal-entry-table td{border:1.5px solid var(--mock-table-border);padding:8px 10px;text-align:center}
.journal-entry-table th{background:color-mix(in oklab,var(--surface) 92%,transparent);font-weight:600}
.journal-entry-table td{text-align:left}
.journal-entry-table select,.journal-entry-table input{width:100%;border:1px solid var(--border);border-radius:10px;padding:8px 10px;font:inherit;background:var(--surface);box-sizing:border-box}
.journal-entry-table input[type="text"]{appearance:textfield}
.journal-entry-table input[type="text"]::-webkit-outer-spin-button,
.journal-entry-table input[type="text"]::-webkit-inner-spin-button{appearance:none;margin:0}

.num-input{text-align:right;font-variant-numeric:tabular-nums}

.trial-table th,
.trial-table td{padding-block:3px}
.trial-table input{text-align:right}

.journal-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.journal-grid label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.92rem}
.journal-grid select,.journal-grid input{border:1px solid var(--border);border-radius:10px;padding:10px 12px;font:inherit;background:var(--surface)}
.journal-grid input[type="number"]{appearance:textfield}
.journal-grid input::-webkit-outer-spin-button,.journal-grid input::-webkit-inner-spin-button{appearance:none;margin:0}

.question-hint{margin:0;color:var(--muted);font-size:.86rem}
.question-note{margin:0 0 12px;color:var(--muted);font-size:.9rem}

.trial-snippet{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.trial-snippet th,.trial-snippet td{border:1px solid var(--border);padding:8px 10px;text-align:right}
.trial-snippet th[scope="row"]{text-align:left}
.trial-snippet caption{caption-side:top;margin-bottom:10px;font-weight:600;text-align:left}
.blank-marker{display:inline-flex;align-items:center;justify-content:center;min-width:1.8em;padding:2px 8px;border-radius:999px;border:1px solid color-mix(in oklab,var(--accent) 40%,var(--border) 60%);background:color-mix(in oklab,var(--accent) 12%,var(--surface) 92%);color:color-mix(in oklab,var(--accent) 70%,var(--text) 30%);font-weight:700}

.board-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}

.numeric-input-wrap{display:flex;align-items:center;gap:8px;border:1px solid color-mix(in oklab,var(--border) 85%,var(--text) 15%);border-radius:12px;padding:10px 12px;background:color-mix(in oklab,var(--surface) 98%,transparent);width:fit-content;cursor:text}
.numeric-input{border:0;border-radius:8px;padding:0;font:inherit;background:transparent;width:7em;text-align:right;font-variant-numeric:tabular-nums}
.numeric-unit{color:var(--muted);font-size:.9rem}

.result-panel{border-top:1px solid var(--border);padding-top:12px;display:grid;gap:16px}
.result-summary{padding:18px;border-radius:16px;background:linear-gradient(135deg,color-mix(in oklab,var(--accent) 14%,var(--surface) 90%),color-mix(in oklab,var(--accent-2) 8%,var(--surface) 92%));box-shadow:var(--shadow);display:grid;gap:6px}
.result-summary strong{font-size:1.2rem}
.result-status{display:flex;gap:12px;align-items:center}
.status-chip{padding:4px 10px;border-radius:999px;border:1px solid transparent;font-size:.85rem;font-weight:700}
.status-chip.ok{background:color-mix(in oklab,var(--accent-2) 16%,var(--surface) 90%);color:color-mix(in oklab,var(--accent-2) 70%,var(--text) 30%)}
.status-chip.ng{background:color-mix(in oklab,#f87171 16%,var(--surface) 90%);color:color-mix(in oklab,#f87171 70%,var(--text) 30%)}

.result-details{display:grid;gap:12px}
.result-card{border:1px solid var(--border);border-radius:14px;padding:14px 16px;background:color-mix(in oklab,var(--surface) 95%,transparent);display:grid;gap:6px}
.result-card header{display:flex;justify-content:space-between;gap:12px;font-size:.98rem}
.result-card header h4{margin:0;font-size:1rem}
.result-card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.7}
.result-card .incorrect{color:color-mix(in oklab,#f87171 80%,var(--text) 20%);font-weight:600}
.result-card .correct{color:color-mix(in oklab,var(--accent-2) 70%,var(--text) 30%);font-weight:600}

.costing-feedback{margin:12px 0 0;display:grid;gap:10px}
.costing-feedback__item{border-top:1px solid color-mix(in oklab,var(--border) 70%,transparent);padding-top:8px;display:grid;gap:4px}
.costing-feedback__item:first-child{border-top:0;padding-top:0}
.costing-feedback__headline{display:flex;gap:8px;align-items:center;font-weight:600}
.costing-feedback__body{margin:0;color:var(--muted);font-size:.9rem;line-height:1.6}
.costing-badge{display:inline-flex;align-items:center;justify-content:center;width:1.8em;height:1.8em;border-radius:999px;font-weight:700;font-size:.9rem}
.costing-badge.ok{background:color-mix(in oklab,var(--accent-2) 18%,var(--surface) 90%);color:color-mix(in oklab,var(--accent-2) 70%,var(--text) 30%)}
.costing-badge.ng{background:color-mix(in oklab,#f87171 18%,var(--surface) 90%);color:color-mix(in oklab,#f87171 75%,var(--text) 25%)}
.costing-feedback__note{margin:0;color:var(--muted);font-size:.88rem}

.result-note{margin:0;color:var(--muted);font-size:.9rem}

.answer-feedback{margin-top:14px;padding:14px 16px;border-radius:14px;border:1px solid color-mix(in oklab,var(--border) 70%,var(--accent) 30%);background:color-mix(in oklab,var(--surface) 96%,transparent);display:grid;gap:6px}
.answer-feedback.is-correct{border-color:color-mix(in oklab,var(--accent-2) 60%,var(--border) 40%);background:color-mix(in oklab,var(--accent-2) 12%,var(--surface) 92%)}
.answer-feedback.is-incorrect{border-color:color-mix(in oklab,#f87171 60%,var(--border) 40%);background:color-mix(in oklab,#f87171 12%,var(--surface) 92%)}
.answer-feedback__status{margin:0;font-weight:700}
.answer-feedback__line{margin:0;color:var(--muted);display:flex;gap:6px;flex-wrap:wrap}
.answer-feedback__line .label{font-weight:600}
.answer-feedback__line .correct{color:color-mix(in oklab,var(--accent-2) 70%,var(--text) 30%);font-weight:600}
.answer-feedback__line .incorrect{color:color-mix(in oklab,#f87171 75%,var(--text) 25%);font-weight:600}
.answer-feedback__explanation{margin:4px 0 0;line-height:1.6}

.trial-block{display:grid;gap:12px}
.trial-subheading{margin:12px 0 6px;font-weight:600;color:var(--muted)}
.trial-table tbody td:nth-child(1),
.trial-table tfoot td:nth-child(1){text-align:right}
.trial-table tbody td:nth-child(2),
.trial-table tbody td:nth-child(4),
.trial-table tfoot td:nth-child(2),
.trial-table tfoot td:nth-child(4){text-align:right}
.trial-table tbody td:nth-child(3){text-align:left}
.trial-table input.is-correct,.trial-reading input.is-correct,.num-input.is-correct{border-color:color-mix(in oklab,var(--accent-2) 60%,var(--border) 40%);background:color-mix(in oklab,var(--accent-2) 10%,var(--surface) 95%)}
.trial-table input.is-incorrect,.trial-reading input.is-incorrect,.num-input.is-incorrect{border-color:color-mix(in oklab,#f87171 70%,var(--border) 30%);background:color-mix(in oklab,#f87171 12%,var(--surface) 96%)}
.trial-reading{display:grid;gap:10px;margin-top:12px}
.trial-reading__item{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.trial-reading__prompt{flex:1;font-weight:600}
.trial-reading__unit{color:var(--muted);font-size:.85rem}
.trial-reading input{flex:0 0 160px;border:1px solid var(--border);border-radius:10px;padding:8px 10px;font:inherit;background:var(--surface);text-align:right;font-variant-numeric:tabular-nums}
.trial-feedback{display:grid;gap:12px;margin-top:8px}
.trial-feedback__section{border-top:1px solid color-mix(in oklab,var(--border) 70%,transparent);padding-top:8px;display:grid;gap:6px}
.trial-feedback__section h5{margin:0;font-size:.95rem;color:var(--muted)}
.trial-feedback__section:first-child{border-top:0;padding-top:0}
.trial-feedback__list{margin:0;padding-left:1.2em;display:grid;gap:4px}
.trial-feedback__list li{color:var(--muted);font-size:.9rem;line-height:1.5}
.trial-feedback__summary{margin:0;color:var(--muted);font-size:.9rem}
.trial-feedback__body{margin-left:6px;color:var(--muted);font-size:.88rem}
.trial-feedback__explanation{margin-top:4px;display:block}
.trial-badge{display:inline-flex;align-items:center;justify-content:center;width:1.8em;height:1.8em;border-radius:999px;font-weight:700;margin-right:6px;font-size:.9rem}
.trial-badge.ok{background:color-mix(in oklab,var(--accent-2) 18%,var(--surface) 90%);color:color-mix(in oklab,var(--accent-2) 70%,var(--text) 30%)}
.trial-badge.ng{background:color-mix(in oklab,#f87171 18%,var(--surface) 90%);color:color-mix(in oklab,#f87171 75%,var(--text) 25%)}
.auto-submit{padding:12px 14px;border-left:4px solid color-mix(in oklab,#f97316 70%,var(--accent) 30%);background:color-mix(in oklab,#f97316 12%,var(--surface) 90%);color:color-mix(in oklab,#f97316 60%,var(--text) 40%);border-radius:12px}
.pause-notice{padding:12px 14px;border-left:4px solid color-mix(in oklab,var(--accent) 65%,var(--text) 35%);background:color-mix(in oklab,var(--accent) 10%,var(--surface) 92%);color:color-mix(in oklab,var(--accent) 70%,var(--text) 30%);border-radius:12px}

@media (max-width:960px){
  .section-tabs{padding:0 12px}
  .section-tabs ol{gap:8px;padding:10px 0}
  .section-pill{min-width:160px}
  .cvp-cases{grid-template-columns:1fr}
  .cvp-case__grid{grid-template-columns:1fr}
  .question-container{grid-template-columns:1fr !important}
  .section-intro{grid-template-columns:1fr}
}

@media (max-width:640px){
  .mock-hero{margin-top:32px}
  .exam-board__header{flex-direction:column;align-items:flex-start}
  .board-status{width:100%;justify-content:space-between}
  .board-actions{flex-direction:column;align-items:stretch}
  .guideline-grid{grid-template-columns:1fr}
  .exam-grid{grid-template-columns:1fr}
  .costing-table-wrapper{overflow-x:auto}
}
.numeric-input:focus{outline:none}
.numeric-input-wrap:focus-within{outline:2px solid color-mix(in oklab,var(--accent) 35%,transparent)}