.exam-list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.exam-list-card{border:1px solid #e7e7e7;border-radius:18px;padding:22px;background:#fff;display:grid;gap:13px}.exam-list-card h3{margin:0;font-size:18px}.exam-list-card p{margin:0;color:#777;font-size:12px;line-height:1.65}.exam-list-card .exam-meta{display:flex;flex-wrap:wrap;gap:8px}.exam-list-card .exam-meta span{font-size:10px;padding:6px 9px;border-radius:999px;background:#f4f5f7;color:#555}.exam-status{font-size:10px;font-weight:800;width:max-content;padding:5px 9px;border-radius:999px}.exam-status.available{background:#eaf8ef;color:var(--green)}.exam-status.upcoming{background:#eaf5fd;color:var(--blue)}.exam-status.ended{background:#f2f2f2;color:#777}.exam-list-card button[disabled]{opacity:.5;cursor:not-allowed}.exam-lock-note{font-size:10px;color:#8a5b15}.short-answer{width:100%;min-height:46px;border:1px solid #ddd;border-radius:12px;padding:11px 13px;outline:0}.short-answer:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(243,112,33,.1)}.question-image{display:block;max-width:100%;max-height:360px;object-fit:contain;margin:14px auto;border-radius:12px}.review-panel{display:grid;gap:14px}.review-item{border:1px solid #e8e8e8;border-radius:14px;padding:18px}.review-item.correct{border-left:4px solid var(--green)}.review-item.wrong{border-left:4px solid #e85c5c}.review-title{display:flex;justify-content:space-between;align-items:center}.review-title span{font-weight:800}.review-title b{font-size:10px}.review-item.correct .review-title b{color:var(--green)}.review-item.wrong .review-title b{color:#c64242}.review-item>p{font-size:13px;line-height:1.6}.review-answers{display:grid;grid-template-columns:1fr 1fr;gap:10px}.review-answers span{background:#f7f7f8;border-radius:10px;padding:10px;font-size:12px}.review-answers small{display:block;color:#888;margin-bottom:4px}.review-explanation{margin-top:10px;background:#fff7f0;border-radius:10px;padding:12px}.review-explanation p{margin:5px 0 0;font-size:12px;line-height:1.6}@media(max-width:900px){.exam-list-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.exam-list-grid{grid-template-columns:1fr}.review-answers{grid-template-columns:1fr}}
.exam-nav-trigger,.exam-nav-close,.exam-nav-scrim{display:none}
.exam-nav-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}
@media(max-width:680px){
  .exam-layout{display:block;padding-bottom:80px}
  .exam-nav-trigger{display:flex;align-items:center;justify-content:center;gap:8px;position:fixed;z-index:22;bottom:calc(14px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:min(360px,calc(100% - 28px));min-height:48px;box-shadow:0 8px 28px rgba(15,32,48,.2)}
  .exam-nav-scrim:not([hidden]){display:block;position:fixed;inset:0;z-index:41;background:rgba(12,28,42,.5)}
  .exam-nav{display:block;position:fixed;left:0;right:0;bottom:0;z-index:42;max-height:min(80dvh,680px);overflow:auto;padding:22px 18px calc(20px + env(safe-area-inset-bottom));border-radius:22px 22px 0 0;background:#fff;box-shadow:0 -16px 48px rgba(12,28,42,.2);transform:translateY(110%);visibility:hidden;transition:transform .2s ease,visibility .2s}
  .exam-nav.open{transform:translateY(0);visibility:visible}
  .exam-nav-close{display:grid;place-items:center;border:0;background:#f2f4f7;border-radius:50%;width:44px;height:44px;font-size:26px}
  .exam-nav .q-grid button{min-height:44px}
}
@media(prefers-reduced-motion:reduce){.exam-nav{transition:none}}
.exam-save-state{font-size:12px;color:var(--fsc-blue-deep);font-weight:700;line-height:1.35;max-width:340px}
@media(max-width:680px){.exam-top{gap:7px 12px}.exam-top>div:first-child{width:auto;max-width:45%}.exam-save-state{order:3;flex-basis:100%;max-width:none;font-size:11px}.exam-top .timer{margin-left:auto}}
body.exam-active .site-header{display:none}

/* Imported content retains source equations, images, tables and line breaks. */
.exam-source-image{display:inline-block;max-width:100%;height:auto;max-height:680px;object-fit:contain;vertical-align:middle;background:white;border-radius:6px;padding:3px;margin:4px 2px}.exam-source-table-wrap{max-width:100%;overflow:auto;margin:12px 0}.exam-source-table{border-collapse:collapse;width:100%;font-size:inherit}.exam-source-table td{padding:8px 12px;border:1px solid #9aafc455;vertical-align:top}.question-card .answers label{min-width:0;overflow-wrap:anywhere}.question-card .answers .exam-source-image{max-width:min(100%,500px);max-height:220px}.import-source-preview{padding:18px;border:1px solid #9aafc455;border-radius:14px;margin:12px 0;overflow-wrap:anywhere;min-width:0;line-height:1.75}.import-source-preview h4{margin:12px 0}.import-source-preview ol{padding-left:24px}.import-audit{padding:20px;border:1px solid #9aafc455;border-radius:16px;margin-bottom:24px;line-height:1.7}.import-audit ul{padding-left:22px}.import-review-confirm{display:flex;gap:12px;align-items:flex-start;padding:16px 0;font-weight:600}.import-review-confirm input{width:20px!important;min-height:20px!important;flex-shrink:0}.import-question-warnings{color:#ad4b00}.import-question details>summary{cursor:pointer;padding:12px 0;min-height:44px}.import-question textarea{white-space:pre-wrap}.import-question-list{min-width:0}html[data-theme=dark] .import-question-warnings{color:#ffd098}
.exam-source-math{display:inline-block;max-width:100%;min-height:1.6em;vertical-align:middle;overflow-x:auto;overflow-y:hidden}.exam-source-math .katex{font-size:1.15em}.exam-source-math code{white-space:pre-wrap;overflow-wrap:anywhere}.exam-math-error{padding:6px;border:1px dashed #d18443;border-radius:8px}.exam-math-error small{display:block;font-size:12px}.import-source-preview .exam-source-math{vertical-align:middle}
.exam-import .import-review{padding:0;border:0;background:transparent}.exam-import .import-question header{flex-wrap:wrap}.exam-import .import-question header>label{display:flex;align-items:center;gap:8px;min-width:0}.exam-import [data-import-select]{width:20px!important;min-height:20px!important;margin:0}.exam-import .import-review-confirm{display:flex!important}.exam-import .import-review-head{flex-wrap:wrap}.exam-import :is(input,textarea,select){min-width:0;max-width:100%}@media(max-width:680px){.exam-import .import-question{padding:16px}.exam-import .import-source-preview{padding:12px}.exam-import .import-audit{padding:16px}.exam-import .import-upload{padding:16px}.exam-import .import-question-row,.exam-import .import-upload-fields{grid-template-columns:1fr}}