:root{color-scheme:light;--ink:#132d36;--muted:#64767b;--teal:#08796e;--line:#dbe4e3;--paper:#f3f6f4}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 'Segoe UI',Arial,sans-serif}header{max-width:1280px;margin:auto;padding:28px 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}a{color:var(--teal)}.brand{text-decoration:none;font-size:14px;letter-spacing:2px;font-weight:800;display:flex;align-items:center;gap:14px}.brand-icon{display:grid;place-items:center;background:var(--ink);color:white;width:36px;height:36px;border-radius:9px;font-size:20px}.muted{color:#93a5a8}.header-tag,.eyebrow{font-size:11px;font-weight:750;letter-spacing:2px}.header-tag{color:var(--muted)}.layout{max-width:1280px;margin:0 auto;padding:64px 48px;display:grid;grid-template-columns:1fr 1.1fr;gap:70px;align-items:start}.eyebrow{color:var(--muted)}.teal{color:var(--teal)}h1{font-size:clamp(32px,3.3vw,49px);line-height:1.12;letter-spacing:-2px;margin:24px 0}.dot{color:var(--teal)}p{color:var(--muted);margin:14px 0}.intro{max-width:390px;font-size:17px}.module-list{margin-top:38px}.module-list>div{display:flex;gap:21px;align-items:center;border-top:1px solid var(--line);padding:17px 0}.module-list b{font-size:12px;color:var(--teal);letter-spacing:1px}.module-list span{font-size:15px;font-weight:600}.module-list small{display:block;font-size:12px;color:var(--muted);font-weight:400}.scale{margin-top:30px;padding:20px;border:1px solid var(--line);border-radius:12px;background:#eaf0ed}.scale>span{font-size:10px;letter-spacing:1.8px;font-weight:700;color:var(--muted)}.scale>div{display:flex;justify-content:space-between;gap:20px;margin-top:8px}.scale b{font-size:19px}.scale small{display:block;font-size:13px;font-weight:500;color:var(--teal)}.card{background:white;padding:36px;border:1px solid var(--line);border-radius:18px;box-shadow:0 12px 40px #183a3310}h2{font-size:27px;line-height:1.25;letter-spacing:-.8px;margin:16px 0}.card p{font-size:14px}.notice{background:#edf6f3;border-left:3px solid var(--teal);padding:13px 16px;font-size:13px;color:#42675d;border-radius:0 6px 6px 0;margin:23px 0}label{display:block;font-size:12px;font-weight:650;margin:16px 0 0}input{display:block;width:100%;border:1px solid #cddad7;border-radius:8px;background:#fcfdfc;color:var(--ink);padding:12px 14px;margin-top:7px;font:14px 'Segoe UI',sans-serif}input:focus-visible,button:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid #58b9a8;outline-offset:3px}.fields{display:grid;grid-template-columns:1.3fr 1fr;gap:15px}.check{display:flex;align-items:start;gap:10px;font-size:12px;font-weight:400;margin:21px 0}.check input{width:16px;min-width:16px;height:16px;margin:3px 0;accent-color:var(--teal)}button{font:600 14px 'Segoe UI',sans-serif;cursor:pointer;border-radius:9px;padding:14px 19px;border:0}.primary{background:var(--teal);color:white;width:100%;display:flex;justify-content:space-between;align-items:center}.primary:hover{background:#09645c}.primary:disabled,button:disabled{opacity:.55;cursor:wait}.secondary{background:#e8f1ed;color:var(--teal)}.hint{font-size:12px!important;text-align:center}details{margin-top:22px;border-top:1px solid var(--line);padding-top:15px}summary{font-size:12px;color:var(--muted);cursor:pointer}.error{color:#ac2e35!important;font-size:13px;min-height:0}.error:empty{display:none}footer{max-width:1280px;margin:auto;padding:20px 48px;display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}footer a{text-decoration:none}.progress-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.progress-track{height:5px;background:#e4eeeb;border-radius:5px;margin:12px 0 30px;overflow:hidden}.progress-fill{height:100%;background:var(--teal)}.module-badge{display:inline-block;background:#e8f2ee;padding:5px 10px;border-radius:6px;color:var(--teal);font-size:11px;font-weight:650}.question-title{font-size:23px;line-height:1.45;margin:23px 0;letter-spacing:-.4px}.option{position:relative;display:flex;gap:12px;align-items:center;padding:15px;border:1px solid var(--line);border-radius:10px;cursor:pointer;margin:10px 0;font-size:14px;font-weight:400;line-height:1.5}.option:hover{border-color:#8abdb0;background:#f7fbf9}.option:has(input:checked){border-color:var(--teal);background:#edf7f3}.option input{width:17px;height:17px;min-width:17px;accent-color:var(--teal);margin:0}.option b{font-size:11px;color:var(--teal)}.question-submit{margin-top:26px}.lock-line{font-size:11px!important;text-align:center;color:var(--muted)}.grade{font-size:84px;font-weight:750;color:var(--teal);letter-spacing:-4px;line-height:1.15;margin:25px 0 8px}.result-top{text-align:center}.result-data{border-top:1px solid var(--line);margin-top:26px;padding-top:20px}.result-data p{margin:8px 0}.recovery-code{font:17px/1.5 Consolas,monospace;overflow-wrap:anywhere;background:#f0f5f2;padding:14px;border-radius:7px;color:var(--ink)}.teacher-main{max-width:1280px;margin:auto;padding:45px 48px}.teacher-main h1{font-size:36px}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap}.stats{display:flex;gap:20px;margin:26px 0}.stat{padding:18px 26px;background:#eff5f2;border-radius:10px;flex:1}.stat b{font-size:30px;display:block}.stat span{font-size:12px;color:var(--muted)}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13px;white-space:nowrap}th,td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--line)}th{font-size:11px;letter-spacing:.6px;color:var(--muted)}.badge{padding:4px 9px;background:#e8f3ef;border-radius:20px;color:var(--teal);font-size:11px}.actions{display:flex;gap:10px;align-items:center}.actions a{font-size:13px}.success{background:#dceee7;color:var(--teal);padding:12px;border-radius:7px}@media(max-width:900px){.layout{gap:32px;padding:36px 25px;grid-template-columns:1fr 1.2fr}header{padding:22px 25px}h1{font-size:34px}.card{padding:25px}footer{padding:20px 25px}.teacher-main{padding:30px 25px}}@media(max-width:650px){header{padding:20px}.header-tag{font-size:9px;letter-spacing:1px}.brand{font-size:11px;gap:8px;letter-spacing:1px}.layout{display:flex;flex-direction:column;padding:30px 18px;gap:28px}.layout aside{width:100%}h1{font-size:36px;margin:17px 0}.intro{font-size:14px}.module-list{display:none}.scale{margin-top:20px;padding:13px 17px}.scale>div{margin-top:2px}.scale small{display:inline;margin-left:7px}.scale b{font-size:15px}.card{width:100%;padding:25px 20px}.fields{grid-template-columns:1fr 1fr}h2{font-size:24px}.question-title{font-size:21px}footer{flex-wrap:wrap;padding:20px;font-size:10px}.stats{gap:8px}.stat{padding:12px}.stat b{font-size:24px}.teacher-main h1{font-size:30px}}
select{display:block;width:100%;padding:12px;border:1px solid #cddad7;border-radius:8px;margin-top:7px;font:14px Segoe UI,sans-serif;color:var(--ink);background:#fcfdfc}dialog{width:min(780px,94vw);max-height:85vh;overflow:auto;border:1px solid var(--line);border-radius:16px;padding:28px;color:var(--ink)}dialog::backdrop{background:#132d3680}.stats{flex-wrap:wrap}td small{display:block}

.layout.exam-layout{display:block;max-width:760px;padding:28px 20px 36px}.exam-layout .fields{display:block}.exam-layout input{font-size:16px}.exam-scale{color:var(--teal);font-size:13px}.student-access{display:flex;align-items:center;gap:28px;margin:24px 0}.student-access img{display:block;width:224px;height:224px;max-width:100%;background:white}.student-access>div{flex:1;min-width:0}.student-access>a{flex-shrink:0}.student-access .actions{flex-wrap:wrap}.student-access p a{overflow-wrap:anywhere}@media(max-width:650px){.layout.exam-layout{padding:18px 12px 24px}.student-access{flex-direction:column;gap:12px;text-align:center}.student-access .actions{justify-content:center}.teacher-main{padding:24px 16px}}

[hidden]{display:none!important}#draft-list summary{font-size:14px;color:var(--ink);line-height:1.5}#draft-list details{padding:16px 0}#prepare-submit{margin-top:24px}#submit-confirmation .actions{flex-wrap:wrap}#submit-confirmation .primary{width:auto;flex:1}

.danger{background:#fbe9e8;color:#a1262e}.danger:hover{background:#f5d1cf}#delete-dialog .actions{margin-top:20px;flex-wrap:wrap}
.exam-header{flex-wrap:wrap;gap:12px}.duoc-logo{display:block;width:180px;height:auto;background:#002856;padding:12px;box-sizing:content-box}@media(max-width:650px){.duoc-logo{width:136px;padding:9px}.exam-header{gap:10px}}