:root{font-family:'Segoe UI',Arial,sans-serif;color:#202e46;background:#f5f7fb;font-size:15px;--blue:#2878ee;--muted:#718098;--border:#e5eaf2;--green:#15836c}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button:focus-visible,a:focus-visible{outline:3px solid #74b8ff}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}a{color:var(--blue);text-decoration:none}button{border:0;background:none;color:inherit}svg{width:21px;height:21px;vertical-align:middle;flex-shrink:0}h1,h2,h3,p{margin-top:0}h1{font-size:29px;letter-spacing:-.8px;margin-bottom:7px}h2{font-size:19px;letter-spacing:-.3px}h3{font-size:16px}p{line-height:1.65}.muted{color:var(--muted)}.small{font-size:13px}.sidebar{width:258px;position:fixed;inset:0 auto 0 0;background:#fff;border-right:1px solid var(--border);padding:26px 16px 18px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:10px;font-size:25px;font-weight:750;letter-spacing:-1px;padding:0 12px 25px}.brandmark{display:grid;place-items:center;width:36px;height:39px;background:#eaf3ff;color:var(--blue);border-radius:10px;transform:rotate(-5deg)}.brandmark svg{width:25px;height:25px}.profile{background:#f0f6ff;border:1px solid #dceaff;border-left:3px solid var(--blue);border-radius:13px;display:flex;align-items:center;gap:10px;padding:13px 10px;margin-bottom:24px;width:100%;text-align:left}.avatar{height:38px;width:38px;display:grid;place-items:center;border-radius:50%;background:#dcecff;color:#2375da;font-weight:700;flex-shrink:0}.profile strong{display:block;max-width:138px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;font-size:14px}.role{font-size:11px;color:var(--blue);font-weight:650}.nav{display:grid;gap:6px}.nav button{display:flex;align-items:center;gap:13px;text-align:left;padding:13px 15px;font-weight:600;border-radius:11px;color:#63738d}.nav button svg{color:#91a1bb}.nav button:hover{background:#f1f6fd}.nav button.active{background:var(--blue);color:#fff;box-shadow:0 4px 10px #2878ee24}.nav button.active svg{color:#fff}.nav .count{margin-left:auto;background:#ffffff2a;border-radius:6px;font-size:12px;padding:1px 6px}.sidebottom{margin-top:auto;padding:24px 10px 0}.local{display:flex;gap:8px;align-items:center;color:#5d718b;font-size:12px}.dot{width:7px;height:7px;border-radius:50%;background:#20a583}.sidebottom p{font-size:12px;color:#94a0b2;margin:9px 0 15px;line-height:1.5}.sidebottom button{padding:8px 0;display:flex;align-items:center;gap:8px;font-size:13px;color:#677c99}.main{margin-left:258px;min-height:100vh}.topbar{height:78px;padding:0 38px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background:#fff;gap:16px}.breadcrumb{font-size:13px;color:#8793a5}.breadcrumb span{color:#465670;margin-left:9px}.topright{display:flex;gap:17px;align-items:center;font-size:13px}.mode{background:#f3f6fb;border-radius:8px;padding:8px 11px;border:1px solid var(--border);max-width:220px}.mobile{display:none}.content{padding:32px 38px 45px;max-width:1480px;margin:auto}.pagehead{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:26px}.pagehead p{margin:0;color:var(--muted);font-size:14px}.actions{display:flex;gap:9px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--border);padding:10px 16px;border-radius:8px;background:#fff;font-size:13px;font-weight:600;min-height:40px}.btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.btn:hover{filter:brightness(.97)}.btn.danger{color:#bd3846}.btn.sm{padding:7px 11px;min-height:32px;font-size:12px}.welcome{display:flex;align-items:center;justify-content:space-between;gap:24px;background:#eaf2ff;border:1px solid #dce8fb;border-radius:14px;padding:24px 27px;margin-bottom:24px;overflow:hidden}.welcome h2{font-size:23px;margin-bottom:8px}.welcome p{margin-bottom:0;color:#647c9e;max-width:560px;font-size:14px}.emblem{width:130px;height:94px;position:relative;color:#73a7ee;display:grid;place-items:center}.emblem svg{width:75px;height:75px;stroke-width:1}.emblem:before{content:'';position:absolute;border:1px solid #bed6fa;width:100px;height:100px;border-radius:50%}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:27px}.stat{background:white;border:1px solid var(--border);border-radius:12px;padding:20px;display:flex;gap:16px;align-items:center}.stat-icon{height:45px;width:45px;display:grid;place-items:center;border-radius:10px;background:#edf4ff;color:var(--blue)}.stat:nth-child(2) .stat-icon{color:#8c63c5;background:#f4effb}.stat:nth-child(3) .stat-icon{color:#d79a2d;background:#fff7e8}.stat strong{font-size:28px;line-height:1.3;display:block;letter-spacing:-1px}.stat label{font-size:13px;color:var(--muted)}.columns{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,1fr);gap:23px}.columns-student{grid-template-columns:minmax(0,2.2fr) minmax(220px,.75fr)}.columns-student>div>.panel-assignments,.columns-student>div>.panel:first-child{min-height:380px}.empty{position:relative;z-index:1}.empty svg{position:relative;z-index:0;display:block;margin:0 auto 10px}.empty h3,.empty p,.empty .btn{position:relative;z-index:1}.panel{background:#fff;border:1px solid var(--border);border-radius:12px;padding:23px;margin-bottom:22px}.panelhead{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.panelhead h2{margin:0}.textbtn{color:var(--blue);font-size:13px;padding:4px 0}.row{display:flex;align-items:center;gap:14px;padding:17px 0;border-top:1px solid #eff2f7}.row:first-child{border-top:0}.rowbody{flex:1;min-width:0}.rowbody h3{margin:0 0 6px;line-height:1.4}.rowbody p{margin:0;font-size:12px;color:var(--muted)}.row .actions{justify-content:flex-end}.tag{display:inline-block;padding:4px 8px;font-size:11px;font-weight:600;border-radius:5px;background:#eef4ff;color:#467aba;white-space:nowrap}.tag.history{background:#f5effc;color:#8e64ab}.status{display:inline-block;padding:5px 8px;font-size:11px;border-radius:5px;background:#eef2f8;color:#667891;white-space:nowrap}.status.review{background:#fff4d8;color:#a97b13}.status.done{background:#e5f6ef;color:#178364}.status.late{background:#fff0ef;color:#c05d57}.empty{padding:26px 12px;text-align:center;color:var(--muted)}.empty svg{width:34px;height:34px;margin-bottom:10px;color:#a9bed9}.empty h3{color:#5a6e88;margin-bottom:6px}.empty p{font-size:13px;margin-bottom:15px}.quicklinks{display:grid;grid-template-columns:1fr 1fr;gap:10px}.quicklinks button{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:8px;padding:13px;text-align:left;font-size:13px;background:#fbfcff}.quicklinks svg{color:#7295c8}.time{font-weight:650;font-size:15px;min-width:48px;color:#4e678d}.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:20px;flex-wrap:wrap}.search{flex:1;min-width:190px;max-width:420px;position:relative}.search input{width:100%;padding:11px 14px 11px 39px}.search svg{position:absolute;left:12px;top:12px;width:18px;color:#93a2b7}input,select,textarea{border:1px solid #dce3ed;background:#fff;border-radius:7px;padding:10px 12px;color:#263951;max-width:100%}textarea{resize:vertical;min-height:110px;line-height:1.6}input:focus,textarea:focus,select:focus{border-color:#699feb;outline:2px solid #e2edff}.tabs{display:flex;gap:6px;margin-bottom:21px;border-bottom:1px solid var(--border);overflow:auto}.tabs button{white-space:nowrap;padding:12px 14px;color:var(--muted);border-bottom:2px solid transparent;font-size:13px}.tabs button.active{color:var(--blue);border-bottom-color:var(--blue);font-weight:600}.taskgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}.taskcard{background:#fff;border:1px solid var(--border);border-radius:11px;padding:20px;display:flex;flex-direction:column;gap:13px}.taskcard h3{font-size:17px;line-height:1.45;margin:0}.taskcard p{color:var(--muted);font-size:13px;margin:0;white-space:pre-line}.taskcard .actions{margin-top:auto;padding-top:9px}.tablewrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px}th{text-align:left;color:#8190a5;font-size:12px;font-weight:500;background:#f8faff}td,th{padding:16px 13px;border-bottom:1px solid #edf1f6}td .avatar{display:inline-grid;width:32px;height:32px;margin-right:10px;font-size:12px}tr:last-child td{border:0}.subjectcards{display:grid;grid-template-columns:1fr 1fr;gap:22px}.subjectcard{padding:30px;background:#fff;border:1px solid var(--border);border-radius:12px}.subjectcard svg{width:32px;height:32px;color:var(--blue);margin-bottom:20px}.subjectcard p{color:var(--muted);font-size:14px}.notice{background:#f0f5fc;color:#6681a5;border-radius:8px;padding:13px 16px;font-size:13px;line-height:1.6;margin-bottom:20px}.progress{height:8px;border-radius:8px;background:#edf2f8;overflow:hidden}.progress span{display:block;background:var(--blue);height:100%;border-radius:8px}.barrow{display:grid;grid-template-columns:150px 1fr 50px;gap:18px;align-items:center;font-size:13px;margin:20px 0}.answer{white-space:pre-wrap;background:#f6f8fc;border-radius:8px;padding:16px;line-height:1.7;font-size:14px}.lessondate{border-left:3px solid #7aa6ed;padding-left:18px;margin-bottom:24px}.lessondate h3{color:#657b9a;font-size:13px}.score{font-size:24px;font-weight:700;color:var(--green)}.overlay{display:none}dialog{border:1px solid var(--border);border-radius:14px;padding:0;width:min(590px,calc(100% - 30px));max-height:90vh;box-shadow:0 25px 90px #233e6b33;color:#263951;z-index:80}
dialog::backdrop{z-index:79}dialog::backdrop{background:#1e355857;backdrop-filter:blur(2px)}.modalhead{display:flex;justify-content:space-between;align-items:center;padding:22px 25px;border-bottom:1px solid var(--border)}.modalhead h2{margin:0;font-size:21px}.close{font-size:24px;color:#8191a5;padding:0 5px}.formbody{padding:23px 25px}.field{display:grid;gap:8px;margin-bottom:17px;font-size:13px;font-weight:600}.field input,.field select,.field textarea{width:100%;font-weight:400}.field small{color:var(--muted);font-weight:400;line-height:1.6}.fieldpair{display:grid;grid-template-columns:1fr 1fr;gap:15px}.modalfoot{padding:18px 25px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:9px}.option{display:flex;gap:10px;padding:13px;border:1px solid var(--border);border-radius:8px;margin:8px 0;font-size:14px}.option input{accent-color:var(--blue)}#toast{position:fixed;inset:auto auto 24px 50%;transform:translateX(-50%);padding:13px 22px;color:#fff;background:#263d60;border-radius:9px;z-index:200;font-size:14px;display:none;max-width:90vw;border:0;margin:0}#toast:popover-open{display:block}.footnote{font-size:12px;color:#98a4b6;margin-top:25px;text-align:center}.badge{background:#edf4ff;color:#5d85bc;font-size:11px;border-radius:5px;padding:4px 7px}.feedback{border-left:3px solid #8fb6ef;padding:12px 16px;background:#f4f8ff;margin-top:15px;font-size:14px;white-space:pre-wrap}.checkbox{display:flex;gap:10px;font-size:13px;align-items:center;margin-bottom:18px}.checkbox input{accent-color:var(--blue)}.demo{background:#fff9ea;border:1px solid #f6e8c5;color:#9b7b38}.profilepage{max-width:600px}.mobileclose{display:none}@media(min-width:1600px){.content{padding-top:42px}}@media(max-width:1150px){.columns{grid-template-columns:1fr}.topbar{padding:0 25px}.content{padding:26px 25px}.topright>span{display:none}.stat{padding:16px;gap:11px}}@media(max-width:850px){.sidebar{transform:translateX(-100%);transition:transform .18s ease}.sidebar.open{transform:translateX(0)}.main{margin-left:0}.mobile{display:inline-flex;padding:5px}.mobileclose{display:block;position:absolute;right:10px;top:9px;color:#7a8fae;font-size:22px}.overlay.show{display:block;position:fixed;inset:0;background:#20355450;z-index:19}.topbar{height:66px}.breadcrumb{display:none}.content{padding:25px 20px}.stats{gap:10px}.stat{flex-direction:column;align-items:flex-start;gap:9px}.stat strong{font-size:25px}.welcome{padding:21px}.welcome h2{font-size:21px}.pagehead{align-items:flex-start}.subjectcards{grid-template-columns:1fr}.topright{margin-left:auto}}@media(max-width:520px){h1{font-size:25px}.topbar{padding:0 15px}.content{padding:22px 14px}.pagehead{flex-direction:column;gap:15px}.pagehead .actions{width:100%}.pagehead .btn{flex:1}.welcome .emblem{display:none}.stats{gap:7px}.stat{padding:13px 10px}.stat label{font-size:11px}.stat-icon{height:33px;width:33px}.stat strong{font-size:23px}.panel{padding:17px}.row{flex-wrap:wrap}.row .actions{width:100%;justify-content:flex-start;margin-left:0}.fieldpair{grid-template-columns:1fr;gap:0}.barrow{grid-template-columns:105px 1fr 40px;gap:10px}.topright{gap:8px}.mode{font-size:12px;max-width:180px}.quicklinks{grid-template-columns:1fr}.taskgrid{grid-template-columns:1fr}.small.hidephone{display:none}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* Task type picker and flashcard editor */
.task-kind-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:4px}
.task-kind-card{display:flex;flex-direction:column;align-items:flex-start;gap:12px;text-align:left;background:#fff;border:1px solid #e4eaf3;border-radius:14px;padding:20px 18px 22px;min-height:168px;box-shadow:0 1px 2px #1e35580a;transition:border-color .15s,box-shadow .15s,transform .15s}
.task-kind-card:hover,.task-kind-card:focus-visible{border-color:#b7d0f5;box-shadow:0 10px 28px #2a4a7a14;transform:translateY(-1px);outline:none}
.task-kind-ico{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;flex-shrink:0}
.task-kind-ico svg{width:22px;height:22px}
.task-kind-section{margin:22px 0 12px;font-size:13px;font-weight:650;color:#6d7f98}
.task-kind-section:first-of-type{margin-top:4px}
.task-kind-card.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.ctor-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px}
.ctor-title-label{display:block;font-size:12px;font-weight:650;color:#6d7f98;margin-bottom:6px}
.ctor-title{width:100%;font-size:28px;font-weight:750;letter-spacing:-.6px;border:0;border-bottom:1px solid #d7e2f2;padding:4px 0;background:transparent}
.ctor-title::placeholder{color:#a7b4c7;font-weight:600}
.ctor-title:focus{border-bottom-color:#9bbcf0;outline:none}
.ctor-meta{margin-bottom:8px}
.ctor-panel textarea{width:100%;min-height:110px}
.ctor-questions{display:grid;gap:12px;margin-top:8px}
.ctor-qrow{display:flex;justify-content:space-between;gap:14px;align-items:center;border:1px solid #e4eaf3;border-radius:12px;padding:14px 16px;background:#fbfcff}
.ctor-qmain{display:flex;gap:12px;align-items:flex-start;min-width:0}
.ctor-qmain p{margin:4px 0 0}
.ctor-qnum{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;background:#eaf2ff;color:#3f74c4;font-weight:700;flex-shrink:0}
.ctor-add{margin-top:18px;padding-top:8px;border-top:1px solid #edf1f7}
.ctor-opt-row{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;margin:10px 0}
.ctor-correct{display:grid;place-items:center;width:28px}
.ctor-correct input{width:17px;height:17px;accent-color:#2878ee}
.ctor-del{background:#ffe8ef;border-color:#f3c0ce;color:#c24763}
.ctor-del:hover{background:#ffd9e3;filter:none}
.ctor-add-opt{width:100%;margin-top:8px;background:#eef5ff;border-color:#cfe0fb;color:#3f74c4}
.ctor-extra{margin:12px 0;border:1px dashed #d5e0ef;border-radius:10px;padding:10px 12px;background:#fbfcff}
.ctor-extra summary{cursor:pointer;color:#3f74c4;font-weight:600;font-size:13px}
.ctor-review-q{margin:16px 0;padding-top:12px;border-top:1px solid #edf1f7}
.ctor-answer{margin-top:8px}
.answer-file-box{border:1px solid #e3eaf5;border-radius:12px;padding:16px;background:#f8faff;margin-top:8px}
.answer-file-box h3{margin:0;font-size:15px}
.answer-file-preview{display:flex;gap:14px;align-items:flex-start;margin:12px 0;padding:12px;border:1px solid #e4eaf3;border-radius:10px;background:#fff}
.answer-file-preview audio{width:min(320px,100%)}
.answer-file-thumb{display:block;width:120px;height:120px;border-radius:10px;overflow:hidden;border:1px solid #dce5f1;flex-shrink:0;background:#eef3fa}
.answer-file-thumb img{width:100%;height:100%;object-fit:cover;display:block}
@media(max-width:700px){.ctor-top{flex-direction:column}.ctor-qrow{flex-direction:column;align-items:stretch}.answer-file-preview{flex-direction:column}}
.task-kind-ico.tone-blue{background:#e8f1ff;color:#3b7ef0}
.task-kind-ico.tone-purple{background:#f1e9ff;color:#8b5cf6}
.task-kind-ico.tone-cyan{background:#e4f8fb;color:#0ea5b7}
.task-kind-ico.tone-indigo{background:#e9ecff;color:#5563e8}
.task-kind-ico.tone-pink{background:#ffe8f1;color:#e85a8c}
.task-kind-ico.tone-orange{background:#fff0e4;color:#ef7a2f}
.task-kind-ico.tone-teal{background:#e5f7f3;color:#14a38b}
.task-kind-ico.tone-red{background:#ffe9e9;color:#e25555}
.task-kind-ico.tone-yellow{background:#fff6db;color:#d9a116}
.task-kind-ico.tone-sky{background:#e7f5ff;color:#2f8fd5}
.task-kind-card strong{font-size:15px;font-weight:700;letter-spacing:-.2px;color:#1f2d44;line-height:1.35}
.task-kind-card small{font-size:13px;line-height:1.5;color:#8494ab}
.block-editor{border:1px solid #e3eaf5;border-radius:12px;padding:16px;background:#f8faff;margin:8px 0 16px}
.block-editor h3{margin:0;font-size:15px}
.block-pair-row,.block-item-row{align-items:center;margin-bottom:10px}
.block-pair-row .textbtn,.block-item-row .textbtn{justify-self:start}
.blanks-student{line-height:2.1;font-size:15px}
.blanks-student input{display:inline-block;width:140px;margin:0 6px;padding:6px 8px}
.match-student .fieldpair,.group-student .fieldpair{margin-bottom:12px;align-items:center}
.scale-options{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
@media(max-width:1100px){.task-kind-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:780px){.task-kind-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:480px){.task-kind-grid{grid-template-columns:1fr}.task-kind-card{min-height:0}}
.card-editor h3{margin:0}.card-edit-row{border:1px solid #dfe8f5;background:#f8faff;border-radius:10px;padding:16px;margin-bottom:14px}.card-row-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;font-size:13px}.card-edit-row textarea{min-height:100px;background:white}.card-edit-row .field{margin:0}.card-edit-row .fieldpair{gap:12px}.card-training-note{margin:16px 0 0}.deck-meta{display:flex;justify-content:space-between;color:#7b8ca4;font-size:12px;margin:20px 0 12px}.flashcard{display:block;width:100%;height:290px;padding:0;perspective:1200px;border:0;border-radius:14px;background:transparent;text-align:center}.flashcard-inner{display:block;width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .35s ease}.flipped .flashcard-inner{transform:rotateY(180deg)}.flashcard-face{position:absolute;inset:0;border-radius:14px;border:1px solid #cddff9;background:#eef5ff;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:24px;overflow:auto}.flashcard-face small{font-size:12px;color:#7292bb}.flashcard-face>span{font-size:25px;line-height:1.45;font-weight:650;white-space:pre-wrap;overflow-wrap:anywhere;margin:18px 0}.flashcard-face em{font-size:12px;color:#7993b6;font-style:normal}.flashcard-back{transform:rotateY(180deg);background:#eef8f4;border-color:#cbe7da}.flashcard-back small,.flashcard-back em{color:#649884}.deck-controls{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:16px 0}.deck-controls .textbtn{font-size:12px}.deck-progress{height:5px;background:#eaf0f9;border-radius:4px;margin:20px 0}.deck-progress span{display:block;height:100%;background:#498bec;border-radius:4px}.deck-finish{width:100%}.flashcard-practice{border:1px solid #cddff9;background:#eef5ff;border-radius:14px;padding:22px 20px;display:flex;flex-direction:column;gap:12px;text-align:left}.flashcard-practice.right{background:#e7f6ec;border-color:#6bb48a}.flashcard-practice.wrong{background:#fff0ef;border-color:#df8581}.flashcard-practice.done{align-items:center;text-align:center;min-height:220px;justify-content:center}.flashcard-practice small{font-size:12px;color:#7292bb;font-weight:600}.flashcard-practice.wrong small,.flashcard-practice.wrong .card-check-feedback{color:#a43933}.flashcard-practice.right small,.flashcard-practice.right .card-check-feedback{color:#226740}.flashcard-practice strong{font-size:24px;line-height:1.4;font-weight:650;white-space:pre-wrap;overflow-wrap:anywhere}.flashcard-practice.done strong{font-size:22px}.flashcard-practice em{font-style:normal;color:#7993b6;font-size:13px}.card-answer-field{margin:4px 0 0}.card-answer-input{width:100%;min-height:46px;border:1px solid #c9daf3;border-radius:10px;padding:10px 12px;background:#fff;transition:border-color .15s,background .15s,box-shadow .15s}.card-answer-input.right{border-color:#59ad7b;background:#e1f6e9;color:#176c3a;box-shadow:0 0 0 3px #59ad7b33}.card-answer-input.wrong{border-color:#dc7774;background:#fff0ee;color:#ad302f;box-shadow:0 0 0 3px #dc777433}.card-check-feedback{margin:0;min-height:1.4em;font-size:13px;color:#7288a5;line-height:1.5}.card-check-feedback.right{color:#267748}.card-check-feedback.wrong{color:#b1403a}.deck-round-summary{gap:16px}.deck-round-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%}.deck-stat{border-radius:12px;padding:14px 12px;text-align:center;display:grid;gap:4px}.deck-stat span{font-size:12px;font-weight:600}.deck-stat strong{font-size:28px;line-height:1.1}.deck-stat em{font-style:normal;font-size:14px;font-weight:650}.deck-stat.right{background:#e7f6ec;color:#226740;border:1px solid #6bb48a}.deck-stat.wrong{background:#fff0ef;color:#a43933;border:1px solid #df8581}.video-material{display:flex;gap:15px;background:#f1f6ff;border:1px solid #dae6fa;border-radius:10px;padding:18px;margin-bottom:20px}.video-material>svg{color:#4681d2;margin-top:3px}.video-material p{font-size:13px;color:#7285a0;margin:8px 0 14px}#editor-preview{margin-top:14px}#editor-preview .panelhead{align-items:flex-start}#editor-preview .panelhead .textbtn{max-width:150px;text-align:right}.remove-card:disabled{color:#9eacbf}@media(max-width:520px){.card-edit-row .fieldpair{gap:14px}.flashcard{height:270px}.flashcard-face{padding:20px 15px}.flashcard-face>span{font-size:22px}.deck-controls .btn{padding:8px 10px}}
[hidden]{display:none!important}
/* Multiple-choice testing cards */
.quiz-options-editor{border:0;padding:0;margin:15px 0 0}.quiz-options-editor legend{font-size:12px;font-weight:600;color:#687e9a;margin-bottom:10px}.quiz-option-edit{display:flex;align-items:center;gap:10px;margin:9px 0}.quiz-option-edit>input{flex:1;width:0}.quiz-correct-radio{display:grid;place-items:center;width:22px;flex-shrink:0}.quiz-correct-radio input{accent-color:#2878ee;cursor:pointer;width:17px;height:17px}.quiz-edit-row .field{margin-bottom:12px}.quiz-card{cursor:default;height:235px}.quiz-card.quiz-right .flashcard-back{background:#e1f6e9;border:2px solid #59ad7b;color:#176c3a}.quiz-card.quiz-wrong .flashcard-back{background:#fff0ee;border:2px solid #dc7774;color:#ad302f}.quiz-card.quiz-wrong .flashcard-back small,.quiz-card.quiz-wrong .flashcard-back em{color:#aa5b58}.quiz-card .flashcard-face>span{font-size:24px}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.quiz-answer{border:1px solid #dce5f1;border-radius:9px;padding:12px;display:flex;align-items:center;gap:10px;text-align:left;background:#fff;min-height:55px;overflow-wrap:anywhere}.quiz-answer>span{width:26px;height:26px;display:grid;place-items:center;flex-shrink:0;border-radius:6px;background:#f0f4fa;color:#8595ad;font-size:12px}.quiz-answer strong{font-weight:500;font-size:14px;flex:1;min-width:0}.quiz-answer:not(:disabled):hover{border-color:#629cec;background:#f2f7ff}.quiz-answer:disabled{opacity:1}.quiz-answer.right{background:#e7f6ec;border-color:#6bb48a;color:#226740}.quiz-answer.wrong{background:#fff0ef;border-color:#df8581;color:#a43933}.quiz-feedback{font-size:13px;margin:14px 0 0;color:#7288a5;line-height:1.55;min-height:20px}.quiz-feedback.right{color:#267748}.quiz-feedback.wrong{color:#b1403a}.quiz-result{padding:15px;background:#f1f6ff;border-radius:8px;margin:15px 0;color:#4d6b92;font-size:14px}.quiz-result strong{color:#2867b8}#quiz-host .deck-finish{margin-top:5px}.quiz-answer b{font-size:23px;line-height:1}#quiz-editor-preview{margin-top:20px}@media(max-width:520px){.quiz-options{grid-template-columns:1fr}.quiz-card{height:245px}.quiz-card .flashcard-face>span{font-size:21px}.quiz-answer{min-height:48px}}
/* Class workspaces */
.class-intro{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:22px 0 28px}.class-intro h2{font-size:23px;margin:0 0 10px}.class-intro p{color:#7b8ca4;font-size:14px;margin:0;max-width:640px}.class-intro>svg{width:58px;height:58px;color:#88ace0;margin-right:20px}.class-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:22px}.class-card{border:1px solid #e1e7f2;background:#fff;border-radius:13px;overflow:hidden}.class-cover{height:132px;background:#e6efff;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;color:#5b88cb;border-bottom:1px solid #dce7f7}.class-cover>span{font-size:74px;line-height:1;font-weight:700;letter-spacing:-5px;color:#467fce}.class-cover>div{display:grid;justify-items:end;gap:13px}.class-cover svg{width:38px;height:38px;stroke-width:1.3}.class-cover small{font-size:11px}.class-card-body{padding:23px}.class-card-body h2{font-size:22px;margin-bottom:7px}.class-card-body p{font-size:13px;color:#8a99ad}.class-card-body .btn{width:100%;margin-top:20px}.class-sections{display:grid;gap:10px;font-size:13px;color:#687e9c;border-top:1px solid #edf1f7;padding-top:16px}.class-banner{background:#eaf2ff;border:1px solid #dbe7f9;border-radius:12px;padding:20px 27px;display:flex;align-items:center;gap:27px;margin-bottom:23px}.class-banner>span{font-size:56px;line-height:1;color:#6591d2;font-weight:700}.class-banner strong{font-size:19px;color:#3e618f}.class-banner p{margin:7px 0 0;font-size:13px;color:#7a91af}.class-back{margin-bottom:20px}.program-item{display:flex;gap:20px}.topic-number{height:35px;width:35px;display:grid;place-items:center;background:#edf4ff;border-radius:9px;flex-shrink:0;color:#7293bf}.program-item h3{margin:13px 0 8px}.program-item p{white-space:pre-wrap;font-size:14px;color:#7e90a9;margin-bottom:12px}.program-item>div{min-width:0}.entry-delete{color:#bd6b6b}.material-icon svg{width:28px;height:28px;color:#7597c5}.member-option{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid #edf1f7}.member-option input{accent-color:#2878ee;width:17px;height:17px}.member-option strong{display:block;font-size:14px}.member-option small{display:block;font-size:12px;color:#8799b2;margin-top:6px}.deck-position{color:#6a8fbd;font-size:13px;white-space:nowrap}.deck-center{text-align:center;display:grid;gap:6px}.deck-controls .deck-center .textbtn{font-size:11px}@media(max-width:520px){.class-intro>svg{display:none}.class-banner{gap:18px;padding:18px}.class-banner strong{font-size:16px}.class-banner p{font-size:12px}.class-grid{grid-template-columns:1fr}.program-item{gap:12px}.panelhead .actions{justify-content:flex-end}.class-card-body{padding:20px}}
.class-delete-button{display:block;margin:12px auto 0;padding:5px 10px;font-size:12px;color:#b45e65;border-radius:6px}.class-delete-button:hover{background:#fff0f0;color:#a63742}.class-delete-button:focus-visible{outline:2px solid #d58a90}
.student-delete-btn{margin-right:auto}
.btn.danger{border-color:#e7c4c7;background:#fff7f7}
.btn.danger:hover{background:#ffecec;filter:none}
.avatar.has-photo{padding:0;overflow:hidden;background:#dcecff}
.avatar.has-photo img{width:100%;height:100%;object-fit:cover;display:block;border-radius:50%}
.avatar.lg{width:88px;height:88px;font-size:28px}
.profile-photo-block{display:flex;gap:18px;align-items:center;margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.profile-photo-title{margin:0 0 6px;font-weight:650;font-size:14px}
.profile-photo-block .muted{margin:0 0 14px}
.achievements-panel .panelhead{align-items:flex-start;margin-bottom:22px}
.assign-mode{display:flex;gap:8px;margin:0 0 18px;padding:4px;background:#f1f5fb;border-radius:10px}
.assign-mode button{flex:1;padding:11px 12px;border-radius:8px;font-size:13px;font-weight:650;color:#5f7391}
.assign-mode button.active{background:#fff;color:var(--blue);box-shadow:0 1px 4px #1e3a6320}
.assign-class-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:4px 0 12px}
.assign-student-list{max-height:260px;overflow:auto;border:1px solid var(--border);border-radius:10px;padding:4px 12px;background:#fbfcff;margin-bottom:8px}
.folder-scale{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.folder-scale input[type=range]{width:120px;accent-color:var(--blue)}
.folder-scale-val{min-width:42px}
.folder-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(calc(200px * var(--folder-scale,1)),1fr));gap:calc(12px * var(--folder-scale,1));--folder-scale:1}
.folder-card{position:relative;border:1px solid var(--border);border-radius:12px;background:#fbfcff;padding:calc(12px * var(--folder-scale,1));display:flex;flex-direction:column;gap:calc(10px * var(--folder-scale,1));transition:border-color .15s,background .15s,box-shadow .15s,transform .15s}
.folder-drag-handle{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:8px;display:grid;place-items:center;color:#8a9bb2;background:#f1f5fb;cursor:grab;z-index:2}
.folder-drag-handle:hover{background:#e4edf9;color:#4d78b8}
.folder-drag-handle:active,.folder-card.dragging .folder-drag-handle{cursor:grabbing}
.folder-drag-handle svg{width:14px;height:14px;fill:currentColor;stroke:none}
.folder-card.dragging{opacity:.55}
.folder-card.folder-reorder-over{border-color:#2f6fd0;background:#e7f1ff;box-shadow:inset 4px 0 0 #2878ee}
.folder-main{display:flex;align-items:center;gap:calc(10px * var(--folder-scale,1));text-align:left;width:100%;padding-right:28px}
.folder-ico{width:calc(40px * var(--folder-scale,1));height:calc(40px * var(--folder-scale,1));border-radius:10px;display:grid;place-items:center;background:#e7f0ff;color:#3f74c4;flex-shrink:0}
.folder-ico svg{width:calc(20px * var(--folder-scale,1));height:calc(20px * var(--folder-scale,1))}
.folder-main strong{display:block;font-size:calc(14px * var(--folder-scale,1))}
.folder-main small{display:block;margin-top:4px;color:#7b8ca4;font-size:calc(12px * var(--folder-scale,1))}
.folder-actions{display:flex;gap:12px;padding-top:2px;border-top:1px solid #edf1f7}
.folder-create{border:1.5px dashed #b7cae6;border-radius:12px;background:#f7faff;min-height:calc(100px * var(--folder-scale,1));display:grid;place-content:center;justify-items:center;gap:8px;color:#5d82b8;font-size:calc(13px * var(--folder-scale,1))}
.folder-create:hover{background:#eef5ff;border-color:#8fb0e0}
.folder-drop-zone.folder-drop-over,.folder-card.folder-drop-over{border-color:#4d8fe8;background:#eaf3ff;box-shadow:0 0 0 3px #2878ee22}
@media(max-width:700px){.panelhead:has(.folder-scale){flex-direction:column;align-items:stretch}}
.unfile-drop{margin-top:16px;padding:14px;border:1.5px dashed #c5d3e6;border-radius:10px;text-align:center;color:#7b8ca4;font-size:13px}
.unfile-drop.folder-drop-over{border-color:#4d8fe8;background:#eaf3ff;color:#3f74c4}
.taskcard{position:relative}
.task-drag-handle{position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:8px;display:grid;place-items:center;color:#8a9bb2;background:#f1f5fb;cursor:grab;z-index:2}
.task-drag-handle:hover{background:#e4edf9;color:#4d78b8}
.task-drag-handle:active,.taskcard.dragging .task-drag-handle{cursor:grabbing}
.task-drag-handle svg{width:16px;height:16px;fill:currentColor;stroke:none}
.taskcard.dragging{opacity:.55}
.taskcard-draggable{padding-top:22px}
.trash-note{margin-bottom:18px}
.trash-deadline{margin:0;font-size:12px;color:#8a6a2b;background:#fff8e8;border:1px solid #f0e0b5;border-radius:8px;padding:8px 10px}
.trash-deadline.urgent{color:#a43b3b;background:#fff0f0;border-color:#efc4c4}
.class-picker{display:grid;gap:8px;max-height:220px;overflow:auto;padding:4px 2px}
.class-pick{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fbfcff;font-weight:400}
.class-pick input{width:17px;height:17px;accent-color:var(--blue);flex-shrink:0}
.class-pick strong{display:block;font-size:13px}
.class-pick small{display:block;margin-top:4px;font-size:11px;color:#7b8ca4}
.class-pick:has(input:checked){border-color:#9dc0f0;background:#eef5ff}
.collapsible-panel{padding-top:14px;padding-bottom:14px}
.collapse-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:12px 8px;border-radius:10px}
.collapse-toggle:hover{background:#f3f7fd}
.collapse-toggle h2{margin:0;font-size:19px}
.collapse-toggle small{display:block;margin-top:6px}
.collapse-btn{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;min-height:48px;padding:10px 16px 10px 18px;border-radius:12px;background:var(--blue);color:#fff;font-size:14px;font-weight:700;box-shadow:0 6px 16px #2878ee33}
.collapse-toggle:hover .collapse-btn{filter:brightness(1.05)}
.collapse-chevron{width:28px;height:28px;display:grid;place-items:center;border-radius:8px;background:#ffffff2e;color:#fff;font-size:18px;line-height:1;transition:transform .18s ease;flex-shrink:0}
.collapse-chevron.open{transform:rotate(180deg)}
.collapse-body.hidden{display:none}
.collapse-body{padding:8px 8px 10px}
@media(max-width:520px){.collapse-btn{padding:10px 12px;font-size:13px;min-height:44px}}
.stats-class-grid{display:grid;gap:12px}
.stats-class-card{display:flex;align-items:center;gap:14px;width:100%;text-align:left;border:1px solid var(--border);border-radius:12px;padding:14px 16px;background:#fbfcff}
.stats-class-card:hover{border-color:#b9d0f3;background:#f3f8ff}
.stats-class-grade{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:#e7f0ff;color:#3f74c4;font-size:22px;font-weight:700;flex-shrink:0}
.stats-class-body{flex:1;min-width:0;display:grid;gap:4px}
.stats-class-body strong{font-size:15px}
.stats-class-body small{color:#7b8ca4;font-size:12px}
.stats-class-card>svg{color:#9aadc6;width:18px;height:18px}
.journal-wrap{overflow:auto;border:1px solid var(--border);border-radius:12px}
.journal-table{border-collapse:separate;border-spacing:0;min-width:100%;font-size:13px}
.journal-table th,.journal-table td{border-bottom:1px solid #edf1f6;border-right:1px solid #edf1f6;vertical-align:top}
.journal-table th:last-child,.journal-table td:last-child{border-right:0}
.journal-table thead th{background:#f7faff;position:sticky;top:0;z-index:1}
.journal-student-head,.journal-student{position:sticky;left:0;background:#fff;z-index:2;min-width:180px}
.journal-table thead .journal-student-head{z-index:3;background:#f7faff}
.journal-task{min-width:140px;max-width:170px;padding:12px 10px;text-align:left}
.journal-task .journal-kind{display:inline-block;font-size:10px;color:#6f86a8;background:#eef3fa;border-radius:4px;padding:2px 6px;margin-bottom:6px}
.journal-task strong{display:block;font-size:12px;line-height:1.35;margin-bottom:4px}
.journal-task small{color:#8a9bb2;font-size:11px}
.journal-avg{min-width:72px;text-align:center}
.journal-student{padding:14px 12px;font-weight:600;white-space:nowrap}
.journal-num{display:inline-grid;place-items:center;width:22px;height:22px;margin-right:8px;border-radius:6px;background:#eef3fa;color:#7b8ca4;font-size:11px;font-weight:600}
.journal-cell{padding:12px 10px;text-align:center;min-width:120px}
.journal-meta{margin-top:6px;font-size:11px;color:#8a9bb2;line-height:1.35}
.journal-empty{color:#b3bfd0}
.journal-avg-val{font-size:14px}
.journal-dot{width:10px;height:10px;border-radius:50%;background:#3bbb76;margin:8px auto;display:block;padding:0}
.journal-dot.pending{background:#9eb2cc}
.stat-pill{display:inline-flex;align-items:center;justify-content:center;min-width:52px;padding:6px 10px;border-radius:999px;font-size:13px;font-weight:700;border:0}
.stat-pill.good{background:#e5f7ec;color:#187a45}
.stat-pill.mid{background:#fff4d8;color:#9a7414}
.stat-pill.bad{background:#ffecec;color:#b13b3b}
.stat-pill:not(span):hover{filter:brightness(.97)}
.detail-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.detail-metrics>div{background:#f6f9fd;border-radius:10px;padding:12px 14px}
.detail-metrics label{display:block;font-size:11px;color:#7b8ca4;margin-bottom:6px}
.detail-metrics strong{font-size:15px}
.error-list{display:grid;gap:12px;margin-top:12px}
.error-card{border:1px solid #f0d7d7;background:#fff8f8;border-radius:10px;padding:14px}
.error-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}
.error-q{white-space:pre-wrap;font-weight:600;margin-bottom:10px}
@media(max-width:700px){.detail-metrics{grid-template-columns:1fr}.journal-student-head,.journal-student{min-width:140px}}
.achievement-upload-wrap{display:flex;justify-content:center;margin-top:18px}
.achievements-panel .empty .achievement-upload-wrap{margin-top:4px}
.achievements-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.achievement-card{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:#fbfcff;display:flex;flex-direction:column}
.achievement-open{display:block;width:100%;padding:0;aspect-ratio:3/4;background:#eef3fa}
.achievement-open img{width:100%;height:100%;object-fit:cover;display:block}
.achievement-meta{padding:12px;display:grid;gap:8px}
.achievement-title{width:100%;font-size:13px;padding:8px 10px}
#diploma-viewer{position:fixed;inset:0;z-index:120;display:grid;place-items:center}
.diploma-viewer-backdrop{position:absolute;inset:0;background:#13233fcc;backdrop-filter:blur(4px)}
.diploma-viewer-stage{position:relative;z-index:1;width:min(1120px,calc(100vw - 32px));height:min(88vh,920px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}
.diploma-viewer-close{position:absolute;top:-6px;right:-6px;z-index:2;width:42px;height:42px;border-radius:50%;background:#fff;color:#314965;font-size:28px;line-height:1;box-shadow:0 8px 24px #10233f55}
.diploma-viewer-close:hover{background:#eef4ff}
.diploma-viewer-frame{width:100%;height:100%;overflow:hidden;border-radius:14px;background:#0f1b2d;display:grid;place-items:center;box-shadow:0 24px 80px #07101866;cursor:grab;touch-action:none}
.diploma-viewer-frame.panning{cursor:grabbing}
.diploma-viewer-frame img{max-width:100%;max-height:100%;object-fit:contain;transform-origin:center center;transition:transform .08s linear;user-select:none;-webkit-user-drag:none;will-change:transform;pointer-events:none}
.diploma-viewer-hint{margin:0;color:#d7e4f7;font-size:13px;text-align:center;text-shadow:0 1px 2px #0008}
.diploma-viewer-nav{display:flex;align-items:center;justify-content:center;gap:12px}
.diploma-viewer-count{color:#e8f0fb;font-size:13px;min-width:64px;text-align:center}
.answer-file-thumb{display:block;padding:0;border:0;background:transparent;cursor:zoom-in;border-radius:10px;overflow:hidden}
.answer-file-thumb img{display:block;max-width:220px;max-height:160px;object-fit:cover}
.topright [data-action="notify"]{position:relative}
.topright [data-action="notify"] .count{position:absolute;top:-6px;right:-8px;background:#a2443f;color:#fff;border-radius:999px;font-size:11px;padding:1px 6px;min-width:18px;text-align:center}
@media(max-width:520px){.diploma-viewer-stage{width:calc(100vw - 16px);height:85vh}.diploma-viewer-hint{font-size:12px;padding:0 10px}}
@media(max-width:850px){.profile-photo-block{flex-direction:column;align-items:flex-start}.achievements-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}
.program-list{display:grid;gap:14px}
.program-item{display:flex;flex-direction:column;gap:0;padding:0;overflow:hidden}
.program-topic-btn{display:flex;gap:18px;align-items:flex-start;width:100%;padding:20px 22px 12px;border:0;background:transparent;text-align:left;cursor:pointer;color:inherit;font:inherit}
.program-topic-btn:hover{background:#f7faff}
.program-topic-btn:focus-visible{outline:2px solid #2878ee;outline-offset:-2px}
.program-topic-body{min-width:0;flex:1}
.program-topic-body h3{margin:10px 0 8px;font-size:18px}
.program-topic-body p{white-space:pre-wrap;font-size:14px;color:#7e90a9;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.program-topic-hint{display:inline-block;font-size:13px;color:#2878ee;font-weight:600}
.program-item-actions{display:flex;gap:14px;padding:0 22px 16px 75px;border-top:1px solid #edf1f7;padding-top:12px;margin-top:4px}
.topic-materials-panel{margin-top:8px}
@media(max-width:520px){.program-topic-btn{gap:12px;padding:16px}.program-item-actions{padding-left:16px}}
.video-material{display:grid;gap:14px;margin-bottom:18px;padding:16px;border:1px solid #dce7f7;border-radius:12px;background:#f7faff}
.video-material-head{display:flex;gap:12px;align-items:flex-start}
.video-material-head svg{width:28px;height:28px;flex-shrink:0;color:#7597c5}
.video-material-head strong{display:block;font-size:15px;margin-bottom:4px}
.video-material-head p{margin:0;font-size:13px;color:#7e90a9}
.video-player{position:relative;width:100%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#0f172a;border:1px solid #d5e2f4}
.video-player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-external-link{justify-self:start}
@media(max-width:520px){.video-material{padding:12px}}

/* Auth — История в Stories */
.auth-shell{min-height:100vh;display:grid;place-items:center;padding:28px 16px;background:linear-gradient(160deg,#eef4ff 0%,#f7f9fc 45%,#e8f0fb 100%)}
.auth-card{width:min(440px,100%);background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px 26px 24px;box-shadow:0 18px 50px #1e3a6314}
.auth-brand{display:flex;gap:12px;align-items:center;margin-bottom:22px}
.auth-brand strong{display:block;font-size:18px;letter-spacing:-.3px}
.auth-brand span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;background:#f1f5fb;padding:5px;border-radius:12px;margin-bottom:18px}
.auth-tabs button{border-radius:9px;padding:10px 12px;font-weight:600;color:#5d7190}
.auth-tabs button.active{background:#fff;color:var(--blue);box-shadow:0 1px 4px #1e3a6320}
.auth-form{display:flex;flex-direction:column;gap:14px}
.auth-form .btn.primary{width:100%;justify-content:center;margin-top:4px}
.auth-switch{margin:4px 0 0;text-align:center;color:var(--muted);font-size:13px}
.auth-error{margin:14px 0 0;padding:10px 12px;border-radius:10px;background:#fff1f1;color:#9b2c2c;border:1px solid #f0c9c9;font-size:13px}
.auth-error.auth-ok{background:#e8f3ea;color:#2f6b3a;border-color:#c5dfcb}
.auth-note h2{margin-bottom:8px}
.auth-note .btn{margin-top:14px;width:100%;justify-content:center}
.auth-dev-link{margin:12px 0;padding:12px;border-radius:10px;background:#f4f8ff;border:1px dashed #b7cae6;word-break:break-all;font-size:13px}
.cred-box{display:grid;gap:10px;padding:14px;border-radius:12px;background:#f4f8ff;border:1px solid #d7e4f7}
.cred-box div{display:flex;justify-content:space-between;gap:12px;align-items:center}
.cred-box span{color:var(--muted);font-size:13px}
.cred-box strong{font-family:ui-monospace,Consolas,monospace;font-size:16px;letter-spacing:.4px}
code{font-family:ui-monospace,Consolas,monospace;font-size:13px}

/* sidebar collapse + logout + notify + tall review */
.sidebar{overflow:hidden}
.sidebar .nav{flex:1;overflow:auto;min-height:0;scrollbar-width:none;-ms-overflow-style:none}
.sidebar .nav::-webkit-scrollbar{width:0;height:0;display:none}
.sidebottom{flex-shrink:0;padding-bottom:8px}
.logout-btn{width:100%;justify-content:flex-start;padding:11px 12px!important;margin-top:6px;border-radius:8px;background:#f3e6e6;color:#74172f!important;font-weight:600}
.logout-btn:hover{background:#ead5d7}
.sidebar-toggle{position:absolute;top:18px;right:10px;width:28px;height:28px;border-radius:8px;border:1px solid #ddc9c5;background:#fff;color:#74172f;font-size:16px;line-height:1;z-index:2}
.sidebar{position:fixed}
.sidebar.collapsed{width:76px;padding-left:10px;padding-right:10px}
.sidebar.collapsed .brand-logo img{width:56px}
.sidebar.collapsed .profile span,.sidebar.collapsed .nav-label,.sidebar.collapsed .sidebottom p,.sidebar.collapsed .local .nav-label{display:none}
.sidebar.collapsed .profile{justify-content:center;padding:10px}
.sidebar.collapsed .nav button{justify-content:center;padding:12px}
.sidebar.collapsed .logout-btn{justify-content:center}
.main.sidebar-collapsed{margin-left:76px}
.panel-review-tall{min-height:440px}
.notify-wrap{position:relative}
.notify-panel{position:absolute;right:0;top:calc(100% + 10px);width:min(340px,92vw);max-height:360px;overflow:auto;background:#fbf9f6;border:1px solid #ddc9c5;border-radius:12px;box-shadow:0 16px 40px #3a1c2430;z-index:45;padding:12px}
.notify-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.notify-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.notify-item{width:100%;text-align:left;padding:10px 12px;border:1px solid #e8ddd8;border-radius:10px;background:#fff;display:grid;gap:4px}
.notify-item strong{font-size:13px;color:#6e152e}
.notify-item span{font-size:13px;color:#5a4a4a}
.notify-item small{font-size:11px;color:#948381}
.notify-empty{margin:8px 0;color:#948381;font-size:13px}
.settings-profile{display:grid;gap:23px;max-width:820px}
@media(max-width:900px){.main.sidebar-collapsed{margin-left:0}.sidebar.collapsed{width:258px}}

.class-banner.group-banner{display:flex;align-items:center;gap:16px;padding:18px 20px}.class-banner.group-banner>div strong{display:block;margin-bottom:4px}.class-cover>span{display:none}