.select2-container{box-sizing:border-box;vertical-align:middle;margin:0;display:inline-block;position:relative}.select2-container .select2-selection--single{box-sizing:border-box;cursor:pointer;-webkit-user-select:none;user-select:none;height:28px;display:block}.select2-container .select2-selection--single .select2-selection__rendered{text-overflow:ellipsis;white-space:nowrap;padding-left:8px;padding-right:20px;display:block;overflow:hidden}.select2-container .select2-selection--single .select2-selection__clear{background-color:#0000;border:none;font-size:1em}.select2-container[dir=rtl] .select2-selection--single .select2-selection__rendered{padding-left:20px;padding-right:8px}.select2-container .select2-selection--multiple{box-sizing:border-box;cursor:pointer;-webkit-user-select:none;user-select:none;min-height:32px;display:block}.select2-container .select2-selection--multiple .select2-selection__rendered{padding:0;list-style:none;display:inline}.select2-container .select2-selection--multiple .select2-selection__clear{background-color:#0000;border:none;font-size:1em}.select2-container .select2-search--inline .select2-search__field{box-sizing:border-box;resize:none;vertical-align:bottom;word-break:keep-all;border:none;max-width:100%;height:20px;margin-top:5px;margin-left:5px;padding:0;font-family:sans-serif;font-size:100%;overflow:hidden}.select2-container .select2-search--inline .select2-search__field::-webkit-search-cancel-button{-webkit-appearance:none}.select2-container .select2-search--inline .select2-search__field::placeholder{line-height:normal}.select2-dropdown{box-sizing:border-box;z-index:1051;background-color:#fff;border:1px solid #aaa;border-radius:4px;width:100%;display:block;position:absolute;left:-100000px}.select2-results{display:block}.select2-results__options{margin:0;padding:0;list-style:none}.select2-results__option{-webkit-user-select:none;user-select:none;padding:6px}.select2-results__option--selectable{cursor:pointer}.select2-container--open .select2-dropdown{left:0}.select2-container--open .select2-dropdown--above{border-bottom:none;border-bottom-right-radius:0;border-bottom-left-radius:0}.select2-container--open .select2-dropdown--below{border-top:none;border-top-left-radius:0;border-top-right-radius:0}.select2-search--dropdown{padding:4px;display:block}.select2-search--dropdown .select2-search__field{box-sizing:border-box;width:100%;padding:4px}.select2-search--dropdown .select2-search__field::-webkit-search-cancel-button{-webkit-appearance:none}.select2-search--dropdown.select2-search--hide{display:none}.select2-close-mask{opacity:0;z-index:99;width:auto;min-width:100%;height:auto;min-height:100%;filter:alpha(opacity=0);background-color:#fff;border:0;margin:0;padding:0;display:block;position:fixed;top:0;left:0}.select2-hidden-accessible{clip:rect(0 0 0 0)!important;clip-path:inset(50%)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.select2-container--default .select2-selection--single{background-color:#fff;border:1px solid #aaa;border-radius:4px}.select2-container--default .select2-selection--single .select2-selection__rendered{color:#444;line-height:28px}.select2-container--default .select2-selection--single .select2-selection__clear{cursor:pointer;float:right;height:26px;margin-right:20px;padding-right:0;font-weight:700}.select2-container--default .select2-selection--single .select2-selection__placeholder{color:#999}.select2-container--default .select2-selection--single .select2-selection__arrow{width:20px;height:26px;position:absolute;top:1px;right:1px}.select2-container--default .select2-selection--single .select2-selection__arrow b{border:4px solid #0000;border-top:5px solid #888;border-bottom-width:0;width:0;height:0;margin-top:-2px;margin-left:-4px;position:absolute;top:50%;left:50%}.select2-container--default[dir=rtl] .select2-selection--single .select2-selection__clear{float:left}.select2-container--default[dir=rtl] .select2-selection--single .select2-selection__arrow{left:1px;right:auto}.select2-container--default.select2-container--disabled .select2-selection--single{cursor:default;background-color:#eee}.select2-container--default.select2-container--disabled .select2-selection--single .select2-selection__clear{display:none}.select2-container--default.select2-container--open .select2-selection--single .select2-selection__arrow b{border-width:0 4px 5px;border-color:#0000 #0000 #888}.select2-container--default .select2-selection--multiple{cursor:text;background-color:#fff;border:1px solid #aaa;border-radius:4px;padding-bottom:5px;padding-right:5px;position:relative}.select2-container--default .select2-selection--multiple.select2-selection--clearable{padding-right:25px}.select2-container--default .select2-selection--multiple .select2-selection__clear{cursor:pointer;height:20px;margin-top:5px;margin-right:10px;padding:1px;font-weight:700;position:absolute;right:0}.select2-container--default .select2-selection--multiple .select2-selection__choice{box-sizing:border-box;text-overflow:ellipsis;vertical-align:bottom;white-space:nowrap;background-color:#e4e4e4;border:1px solid #aaa;border-radius:4px;max-width:100%;margin-top:5px;margin-left:5px;padding:0 0 0 20px;display:inline-block;position:relative;overflow:hidden}.select2-container--default .select2-selection--multiple .select2-selection__choice__display{cursor:default;padding-left:2px;padding-right:5px}.select2-container--default .select2-selection--multiple .select2-selection__choice__remove{color:#999;cursor:pointer;background-color:#0000;border:none;border-right:1px solid #aaa;border-top-left-radius:4px;border-bottom-left-radius:4px;padding:0 4px;font-size:1em;font-weight:700;position:absolute;top:0;left:0}.select2-container--default .select2-selection--multiple .select2-selection__choice__remove:hover,.select2-container--default .select2-selection--multiple .select2-selection__choice__remove:focus{color:#333;background-color:#f1f1f1;outline:none}.select2-container--default[dir=rtl] .select2-selection--multiple .select2-selection__choice{margin-left:5px;margin-right:auto;padding:0 20px 0 0}.select2-container--default[dir=rtl] .select2-selection--multiple .select2-selection__choice__display{padding-left:5px;padding-right:2px}.select2-container--default[dir=rtl] .select2-selection--multiple .select2-selection__choice__remove{border-left:1px solid #aaa;border-right:none;border-radius:0 4px 4px 0;left:auto;right:0}.select2-container--default[dir=rtl] .select2-selection--multiple .select2-selection__clear{float:left;margin-left:10px;margin-right:auto}.select2-container--default.select2-container--focus .select2-selection--multiple{border:1px solid #000;outline:0}.select2-container--default.select2-container--disabled .select2-selection--multiple{cursor:default;background-color:#eee}.select2-container--default.select2-container--disabled .select2-selection__choice__remove{display:none}.select2-container--default.select2-container--open.select2-container--above .select2-selection--single,.select2-container--default.select2-container--open.select2-container--above .select2-selection--multiple{border-top-left-radius:0;border-top-right-radius:0}.select2-container--default.select2-container--open.select2-container--below .select2-selection--single,.select2-container--default.select2-container--open.select2-container--below .select2-selection--multiple{border-bottom-right-radius:0;border-bottom-left-radius:0}.select2-container--default .select2-search--dropdown .select2-search__field{border:1px solid #aaa}.select2-container--default .select2-search--inline .select2-search__field{box-shadow:none;-webkit-appearance:textfield;background:0 0;border:none;outline:0}.select2-container--default .select2-results>.select2-results__options{max-height:200px;overflow-y:auto}.select2-container--default .select2-results__option .select2-results__option{padding-left:1em}.select2-container--default .select2-results__option .select2-results__option .select2-results__group{padding-left:0}.select2-container--default .select2-results__option .select2-results__option .select2-results__option{margin-left:-1em;padding-left:2em}.select2-container--default .select2-results__option .select2-results__option .select2-results__option .select2-results__option{margin-left:-2em;padding-left:3em}.select2-container--default .select2-results__option .select2-results__option .select2-results__option .select2-results__option .select2-results__option{margin-left:-3em;padding-left:4em}.select2-container--default .select2-results__option .select2-results__option .select2-results__option .select2-results__option .select2-results__option .select2-results__option{margin-left:-4em;padding-left:5em}.select2-container--default .select2-results__option .select2-results__option .select2-results__option .select2-results__option .select2-results__option .select2-results__option .select2-results__option{margin-left:-5em;padding-left:6em}.select2-container--default .select2-results__option--group{padding:0}.select2-container--default .select2-results__option--disabled{color:#999}.select2-container--default .select2-results__option--selected{background-color:#ddd}.select2-container--default .select2-results__option--highlighted.select2-results__option--selectable{color:#fff;background-color:#5897fb}.select2-container--default .select2-results__group{cursor:default;padding:6px;display:block}.select2-container--classic .select2-selection--single{filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#FFFFFFFF", endColorstr="#FFEEEEEE", GradientType=0);background-color:#f7f7f7;background-image:linear-gradient(#fff 50%,#eee 100%);background-repeat:repeat-x;border:1px solid #aaa;border-radius:4px;outline:0}.select2-container--classic .select2-selection--single:focus{border:1px solid #5897fb}.select2-container--classic .select2-selection--single .select2-selection__rendered{color:#444;line-height:28px}.select2-container--classic .select2-selection--single .select2-selection__clear{cursor:pointer;float:right;height:26px;margin-right:20px;font-weight:700}.select2-container--classic .select2-selection--single .select2-selection__placeholder{color:#999}.select2-container--classic .select2-selection--single .select2-selection__arrow{width:20px;height:26px;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#FFEEEEEE", endColorstr="#FFCCCCCC", GradientType=0);background-color:#ddd;background-image:linear-gradient(#eee 50%,#ccc 100%);background-repeat:repeat-x;border:none;border-left:1px solid #aaa;border-top-right-radius:4px;border-bottom-right-radius:4px;position:absolute;top:1px;right:1px}.select2-container--classic .select2-selection--single .select2-selection__arrow b{border:4px solid #0000;border-top:5px solid #888;border-bottom-width:0;width:0;height:0;margin-top:-2px;margin-left:-4px;position:absolute;top:50%;left:50%}.select2-container--classic[dir=rtl] .select2-selection--single .select2-selection__clear{float:left}.select2-container--classic[dir=rtl] .select2-selection--single .select2-selection__arrow{border:none;border-right:1px solid #aaa;border-radius:4px 0 0 4px;left:1px;right:auto}.select2-container--classic.select2-container--open .select2-selection--single{border:1px solid #5897fb}.select2-container--classic.select2-container--open .select2-selection--single .select2-selection__arrow{background:0 0;border:none}.select2-container--classic.select2-container--open .select2-selection--single .select2-selection__arrow b{border-width:0 4px 5px;border-color:#0000 #0000 #888}.select2-container--classic.select2-container--open.select2-container--above .select2-selection--single{filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#FFFFFFFF", endColorstr="#FFEEEEEE", GradientType=0);background-image:linear-gradient(#fff 0%,#eee 50%);background-repeat:repeat-x;border-top:none;border-top-left-radius:0;border-top-right-radius:0}.select2-container--classic.select2-container--open.select2-container--below .select2-selection--single{filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#FFEEEEEE", endColorstr="#FFFFFFFF", GradientType=0);background-image:linear-gradient(#eee 50%,#fff 100%);background-repeat:repeat-x;border-bottom:none;border-bottom-right-radius:0;border-bottom-left-radius:0}.select2-container--classic .select2-selection--multiple{cursor:text;background-color:#fff;border:1px solid #aaa;border-radius:4px;outline:0;padding-bottom:5px;padding-right:5px}.select2-container--classic .select2-selection--multiple:focus{border:1px solid #5897fb}.select2-container--classic .select2-selection--multiple .select2-selection__clear{display:none}.select2-container--classic .select2-selection--multiple .select2-selection__choice{background-color:#e4e4e4;border:1px solid #aaa;border-radius:4px;margin-top:5px;margin-left:5px;padding:0;display:inline-block}.select2-container--classic .select2-selection--multiple .select2-selection__choice__display{cursor:default;padding-left:2px;padding-right:5px}.select2-container--classic .select2-selection--multiple .select2-selection__choice__remove{color:#888;cursor:pointer;background-color:#0000;border:none;border-top-left-radius:4px;border-bottom-left-radius:4px;padding:0 4px;font-size:1em;font-weight:700}.select2-container--classic .select2-selection--multiple .select2-selection__choice__remove:hover{color:#555;outline:none}.select2-container--classic[dir=rtl] .select2-selection--multiple .select2-selection__choice{margin-left:5px;margin-right:auto}.select2-container--classic[dir=rtl] .select2-selection--multiple .select2-selection__choice__display{padding-left:5px;padding-right:2px}.select2-container--classic[dir=rtl] .select2-selection--multiple .select2-selection__choice__remove{border-radius:0 4px 4px 0}.select2-container--classic.select2-container--open .select2-selection--multiple{border:1px solid #5897fb}.select2-container--classic.select2-container--open.select2-container--above .select2-selection--multiple{border-top:none;border-top-left-radius:0;border-top-right-radius:0}.select2-container--classic.select2-container--open.select2-container--below .select2-selection--multiple{border-bottom:none;border-bottom-right-radius:0;border-bottom-left-radius:0}.select2-container--classic .select2-search--dropdown .select2-search__field{border:1px solid #aaa;outline:0}.select2-container--classic .select2-search--inline .select2-search__field{box-shadow:none;outline:0}.select2-container--classic .select2-dropdown{background-color:#fff;border:1px solid #0000}.select2-container--classic .select2-dropdown--above{border-bottom:none}.select2-container--classic .select2-dropdown--below{border-top:none}.select2-container--classic .select2-results>.select2-results__options{max-height:200px;overflow-y:auto}.select2-container--classic .select2-results__option--group{padding:0}.select2-container--classic .select2-results__option--disabled{color:gray}.select2-container--classic .select2-results__option--highlighted.select2-results__option--selectable{color:#fff;background-color:#3875d7}.select2-container--classic .select2-results__group{cursor:default;padding:6px;display:block}.select2-container--classic.select2-container--open .select2-dropdown{border-color:#5897fb}
:root{--ink:#202124;--muted:#5f6368;--line:#d9dde3;--bg:#f6f7f9;--panel:#fff;--accent:#0f766e;--accent-strong:#115e59;--danger:#b42318;--warn:#b54708;--ok:#067647}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit}button,input,select,textarea{font:inherit}button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:6px;min-height:38px;padding:0 14px}button:hover{background:var(--accent-strong)}button.secondary{color:var(--ink);background:#e9eef2}button.secondary:hover{background:#dfe6eb}button.danger{background:var(--danger)}input,select,textarea{border:1px solid var(--line);width:100%;min-height:38px;color:var(--ink);background:#fff;border-radius:6px;padding:8px 10px}label{color:var(--muted);gap:6px;font-size:14px;display:grid}table{border-collapse:collapse;width:100%;font-size:14px}th,td{border-bottom:1px solid var(--line);text-align:left;vertical-align:middle;padding:10px 8px}th{color:var(--muted);font-weight:700}.shell{min-height:100vh}.topbar{background:var(--panel);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;padding:18px clamp(16px,4vw,42px);display:flex}.brand{gap:2px;display:grid}.brand strong{font-size:20px}.brand span{color:var(--muted);font-size:13px}.main{width:min(1180px,100%);margin:0 auto;padding:22px clamp(14px,3vw,28px) 48px}.grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;display:grid}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px}.panel h2,.panel h3{margin:0 0 14px}.stack{gap:12px;display:grid}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.row>*{flex:160px}.actions{flex-wrap:wrap;gap:8px;display:flex}.actions button{flex:none}.student-banner,.readonly-meta{border:1px solid var(--line);background:var(--panel);border-radius:8px;gap:4px;padding:12px 14px;display:grid}.student-banner{grid-template-columns:minmax(0,1fr) auto;align-items:center}.student-banner div{gap:4px;display:grid}.student-banner span,.readonly-meta span{color:var(--muted);font-size:13px}.student-banner strong,.readonly-meta strong{font-size:18px}.message{color:var(--accent-strong);background:#eef7f5;border-radius:6px;padding:10px 12px;font-size:14px}.error{color:var(--danger);background:#fff1f0}.status{min-height:26px;color:var(--muted);background:#eef2f6;border-radius:999px;align-items:center;padding:0 10px;font-size:12px;font-weight:700;display:inline-flex}.status.submitted{color:var(--ok);background:#ecfdf3}.status.late,.status.incomplete{color:var(--warn);background:#fffaeb}.status.not_submitted{color:var(--danger);background:#fff1f0}.preview{border:1px solid var(--line);object-fit:contain;background:#fff;border-radius:6px;max-width:220px;max-height:150px}.evidence-thumb-button{border:1px solid var(--line);width:154px;min-height:116px;color:var(--muted);background:#fbfcfd;border-radius:6px;place-items:center;padding:6px;display:grid}.evidence-thumb-button:hover{background:#eef7f5;border-color:#aacfc9}.evidence-thumb-button:disabled{cursor:wait;opacity:1}.evidence-thumb{object-fit:contain;background:#fff;border-radius:4px;width:140px;height:102px;display:block}.evidence-placeholder{font-size:12px;font-weight:700}.evidence-modal{width:min(1040px,100%);max-height:calc(100vh - 36px)}.evidence-modal-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.evidence-modal-head p{max-width:min(720px,70vw);color:var(--muted);overflow-wrap:anywhere;margin:4px 0 0;font-size:13px}.evidence-stage{border:1px solid var(--line);background:#f6f7f9;border-radius:6px;place-items:center;min-height:360px;max-height:calc(100vh - 170px);padding:12px;display:grid;overflow:auto}.evidence-detail-image{object-fit:contain;background:#fff;max-width:100%;max-height:calc(100vh - 198px)}.submission-summary{border:1px solid var(--line);background:#fbfcfd;border-radius:8px;gap:12px;padding:14px;display:grid}.submission-summary h3,.submission-summary p{margin:0}.summary-grid{grid-template-columns:minmax(110px,max-content) minmax(0,1fr);gap:8px 14px;font-size:14px;display:grid}.summary-grid span{color:var(--muted)}.modal-backdrop{z-index:20;background:#2021247a;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.modal{border:1px solid var(--line);background:var(--panel);border-radius:8px;gap:14px;width:min(440px,100%);padding:18px;display:grid;box-shadow:0 18px 48px #20212438}.modal h2{margin:0}.select2-container{min-height:38px;color:var(--ink);font-size:14px;display:block;width:100%!important}.select2-container--default .select2-selection--single{border:1px solid var(--line);background:#fff;border-radius:6px;height:38px;min-height:38px}.select2-container--default .select2-selection--single .select2-selection__rendered{height:36px;min-height:36px;color:var(--ink);padding:0 34px 0 10px;line-height:36px}.select2-container--default .select2-selection--single .select2-selection__placeholder{color:var(--muted)}.select2-container--default .select2-selection--single .select2-selection__arrow{height:36px}.select2-container--default .select2-selection--single .select2-selection__clear{width:22px;height:36px;min-height:0;color:var(--muted);background:0 0;border:0;margin-right:24px;padding:0;line-height:36px}.select2-container--default .select2-selection--single .select2-selection__clear:hover{color:var(--ink);background:0 0}.select2-container--default.select2-container--disabled .select2-selection--single{cursor:not-allowed;background:#f3f5f7}.select2-dropdown{border-color:var(--line);border-radius:6px;overflow:hidden}.select2-search--dropdown{padding:8px}.select2-container--default .select2-search--dropdown .select2-search__field{border-color:var(--line);border-radius:6px;min-height:36px;padding:7px 9px}.select2-results__option{padding:8px 10px;font-size:14px}.select2-container--default .select2-results__option--highlighted.select2-results__option--selectable{background:var(--accent)}.table-wrap{overflow-x:auto}.muted{color:var(--muted)}.admin-layout{grid-template-columns:260px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{border-right:1px solid var(--line);background:#fff;flex-direction:column;gap:18px;height:100vh;padding:20px 16px;display:flex;position:sticky;top:0}.sidebar-brand{gap:4px;padding:2px 4px 8px;display:grid}.sidebar-brand strong{font-size:19px}.sidebar-brand span{color:var(--muted);font-size:13px}.sidebar-class{padding:0 4px}.side-nav{gap:6px;display:grid}.side-nav a,.sidebar-actions a{min-height:38px;color:var(--muted);border-radius:6px;align-items:center;padding:0 10px;text-decoration:none;display:flex}.side-nav a:hover,.sidebar-actions a:hover{color:var(--ink);background:#eef2f6}.side-nav a.active{color:var(--accent-strong);background:#dff4ef;font-weight:700}.sidebar-actions{gap:8px;margin-top:auto;display:grid}.admin-content{min-width:0}.page-head{justify-content:space-between;align-items:center;gap:16px;display:flex}.page-head h1{margin:0;font-size:28px}.page-head p{color:var(--muted);margin:4px 0 0}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;display:grid}.stat{border:1px solid var(--line);background:var(--panel);border-radius:8px;gap:8px;min-height:90px;padding:16px;display:grid}.stat span{color:var(--muted);font-size:13px}.stat strong{font-size:26px}@media (max-width:720px){.topbar{flex-direction:column;align-items:flex-start}.admin-layout{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);height:auto;position:static}.side-nav{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar-actions{margin-top:0}.row{display:grid}button{width:100%}.student-banner{grid-template-columns:1fr}.evidence-thumb-button{width:132px;min-height:104px}.evidence-thumb{width:120px;height:90px}.evidence-modal-head{display:grid}.evidence-modal-head p{max-width:100%}}