body{margin:0}img{max-width:100%}[hidden]{display:none!important}

/* Раскладка: рабочий кабинет, слева кабинет и разделы, справа данные. Цвета статусов из конфетти логотипа. */
:root{
  --bg:#f3f7f9;--panel:#fff;--panel2:#e9f1f5;--line:#d3e0e7;--fg:#17262e;--muted:#566b76;
  --accent:#0079a8;--accent-fg:#fff;--accent-soft:#d9eef6;
  --good:#3f7d12;--good-bg:#e6f3d6;--warn:#a55d00;--warn-bg:#fdeed5;--bad:#c1123c;--bad-bg:#fde3e8;--ai:#6a3a96;--ai-bg:#efe6f7;
  --body:"PT Sans",system-ui,-apple-system,"Segoe UI",sans-serif;--narrow:"PT Sans Narrow","PT Sans",system-ui,sans-serif;--mono:"PT Mono",ui-monospace,Menlo,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0f1a20;--panel:#16252d;--panel2:#1d303a;--line:#2b434f;--fg:#e6f0f4;--muted:#9db2bd;
  --accent:#3fb4e0;--accent-fg:#06222e;--accent-soft:#17394a;
  --good:#a4d873;--good-bg:#21391a;--warn:#f4bb6a;--warn-bg:#3e2d12;--bad:#ff8ea5;--bad-bg:#47202b;--ai:#cbaaf0;--ai-bg:#35264a;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0f1a20;--panel:#16252d;--panel2:#1d303a;--line:#2b434f;--fg:#e6f0f4;--muted:#9db2bd;
  --accent:#3fb4e0;--accent-fg:#06222e;--accent-soft:#17394a;
  --good:#a4d873;--good-bg:#21391a;--warn:#f4bb6a;--warn-bg:#3e2d12;--bad:#ff8ea5;--bad-bg:#47202b;--ai:#cbaaf0;--ai-bg:#35264a;color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font:15px/1.45 var(--body)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.demo{background:var(--warn-bg);color:var(--warn);padding:7px 16px;font-size:13px;text-align:center}
.app{display:grid;grid-template-columns:236px minmax(0,1fr);min-height:calc(100vh - 34px)}
aside{background:var(--panel);border-right:1px solid var(--line);padding:16px 14px;display:flex;flex-direction:column;gap:16px}
.plate{background:#fff;border-radius:8px;padding:6px 8px;display:block;width:150px}
.plate img{display:block;width:100%}
.lbl{font:700 12px/1.2 var(--narrow);letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.roles{display:grid;gap:4px}
.roles button{background:none;border:1px solid var(--line);border-radius:7px;padding:7px 10px;text-align:left}
.roles button small{display:block;color:var(--muted);font-size:12px}
.roles button.on{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}
.roles button.on small{color:inherit}
nav{display:grid;gap:2px}
nav button{background:none;border:0;border-radius:7px;padding:8px 10px;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:8px}
nav button:hover{background:var(--panel2)}
nav button.on{background:var(--accent-soft);font-weight:700}
.count{background:var(--bad);color:#fff;border-radius:10px;font-size:12px;padding:0 7px;line-height:18px;font-weight:700}
:root[data-theme="dark"] .count{color:#2a0610}
main{padding:22px 26px 48px;min-width:0;display:flex;flex-direction:column;gap:18px}
h1{font:700 28px/1.15 var(--narrow);margin:0;text-wrap:balance}
h2{font:700 19px/1.2 var(--narrow);margin:0}
.sub{color:var(--muted);margin:4px 0 0}
.head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:flex-end}
.head>div{min-width:0}
.filters{display:flex;flex-wrap:wrap;gap:8px}
select,input,textarea{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:6px 8px;max-width:100%}
textarea{width:100%;min-height:68px;resize:vertical}
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:9px;overflow:hidden}
.tile{background:var(--panel);padding:11px 14px}
.tile b{display:block;font:400 25px/1.2 var(--mono)}
.tile span{color:var(--muted);font-size:13px}
.box{background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:15px 16px;display:flex;flex-direction:column;gap:11px;min-width:0}
.scroll{overflow-x:auto;border:1px solid var(--line);border-radius:9px;background:var(--panel)}
table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums}
th{font:700 12.5px/1.15 var(--narrow);letter-spacing:.03em;color:var(--muted);text-align:left;padding:10px 9px;border-bottom:1px solid var(--line);vertical-align:bottom;background:var(--panel)}
td{padding:9px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:0}
.sticky{position:sticky;left:0;background:var(--panel);z-index:1}
tbody tr.link{cursor:pointer}
tbody tr.link:hover td{background:var(--panel2)}
.who b{display:block;white-space:nowrap}
.who small{color:var(--muted);white-space:nowrap}
.chip{display:inline-block;border-radius:5px;padding:1px 7px;font-weight:700;white-space:nowrap;background:var(--panel2);color:var(--muted)}
.chip.good{background:var(--good-bg);color:var(--good)}.chip.warn{background:var(--warn-bg);color:var(--warn)}.chip.bad{background:var(--bad-bg);color:var(--bad)}.chip.ai{background:var(--ai-bg);color:var(--ai)}.chip.blue{background:var(--accent-soft);color:var(--accent)}
td small{display:block;color:var(--muted);white-space:nowrap}
.btn{background:var(--panel);border:1px solid var(--line);border-radius:7px;padding:7px 12px}
.btn:hover{border-color:var(--accent)}
.btn.main{background:var(--accent);border-color:var(--accent);color:var(--accent-fg);font-weight:700}
.btn.sm{padding:3px 9px;font-size:13px}
.btn:disabled{opacity:.5;cursor:default}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.row.between{justify-content:space-between}
.field{display:grid;gap:3px;min-width:0}
.field>span{font-size:13px;color:var(--muted)}
.field select{width:100%}
[data-chats]{width:min(300px,100%)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.note{font-size:13px;color:var(--muted);margin:0}
.err{color:var(--bad);font-size:13px;margin:0}
.ok{color:var(--good);font-size:13px;margin:0}
.yn{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.yn button{border:0;background:none;padding:3px 10px;min-width:44px}
.yn button+button{border-left:1px solid var(--line)}
.yn button.on1{background:var(--good-bg);color:var(--good);font-weight:700}
.yn button.on0{background:var(--bad-bg);color:var(--bad);font-weight:700}
.check{display:grid;grid-template-columns:30px minmax(0,1fr) auto;gap:4px 10px;align-items:center;padding:7px 2px;border-bottom:1px solid var(--line)}
.check:last-child{border-bottom:0}
.check .n{font:13px var(--mono);color:var(--muted)}
.check .t{min-width:0}.criterion-note{display:block;color:var(--muted);font-size:13px;line-height:1.4;margin-top:5px}
.check input{grid-column:2/4;width:100%;font-size:13px;padding:4px 7px}
.check.zero{background:var(--bad-bg);border-radius:5px}
.tag{font-size:12px;color:var(--ai);white-space:nowrap}
.fb{border-left:0;display:grid;gap:6px}
.fb h3{font:700 16px/1.2 var(--narrow);margin:0}
.fb.go h3{color:var(--good)}.fb.stop h3{color:var(--bad)}.fb.start h3{color:var(--accent)}
.fb ol{margin:0;padding-left:20px;display:grid;gap:4px}
.lesson-photo{margin:0;max-width:960px}.lesson-photo img{display:block;width:100%;height:auto;border-radius:7px}.lesson-photo figcaption{margin-top:5px;color:var(--muted);font-size:13px}
.frame{aspect-ratio:16/7;max-width:100%;background:repeating-linear-gradient(135deg,var(--panel2) 0 12px,var(--panel) 12px 24px);border:1px dashed var(--line);border-radius:7px;display:grid;place-items:center;color:var(--muted);font-size:13px;text-align:center;padding:8px}
.guitar-intro{background:var(--accent-soft);border-color:var(--accent)}
.transcript-line{display:grid;grid-template-columns:70px minmax(0,1fr);gap:12px;border-bottom:1px solid var(--line);padding:12px 0;align-items:start}
.score{font:400 34px/1 var(--mono)}
.steps{display:flex;flex-wrap:wrap;gap:4px;font-size:13px;padding:0;margin:0;list-style:none}
.steps li{padding:2px 9px;border-radius:5px;background:var(--panel2);color:var(--muted)}
.steps li.on{background:var(--accent);color:var(--accent-fg);font-weight:700}
.bar{display:grid;grid-template-columns:minmax(90px,150px) minmax(0,1fr) 28px;gap:10px;align-items:center}
.bar i{display:block;height:12px;background:var(--accent);border-radius:3px}
a{color:var(--accent);overflow-wrap:anywhere}
.stickybar{position:sticky;bottom:0;background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:10px 14px}
@media (max-width:860px){
  .app{grid-template-columns:minmax(0,1fr)}
  aside{border-right:0;border-bottom:1px solid var(--line);gap:10px}
  .roles{grid-template-columns:repeat(3,minmax(0,1fr))}
  .roles button{padding:5px 7px;font-size:13px}.roles button small{display:none}
  nav{display:flex;overflow-x:auto;gap:4px}
  nav button{white-space:nowrap;flex:none}
  main{padding:16px 16px 40px}
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid2,.grid3{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:no-preference){.flash{animation:f .5s ease-out}@keyframes f{from{background:var(--accent-soft)}}}

:root{color-scheme:light dark}body{margin:0}main{min-height:100vh}.auth{max-width:460px;margin:9vh auto;padding:20px}.auth .box{gap:18px}.brand{width:150px;display:block;background:#fff;border-radius:7px;padding:7px}.brand img{display:block}.full{width:100%}.error{color:var(--bad);background:var(--bad-bg);padding:10px;border-radius:7px}.success{color:var(--good);background:var(--good-bg);padding:10px;border-radius:7px}.notice{background:var(--warn-bg);color:var(--warn);padding:12px 15px;border-radius:7px}.stack{display:grid;gap:14px}.clickrow{cursor:pointer}.clickrow:hover{background:var(--panel2)}.small{font-size:13px;color:var(--muted)}.photo{display:block;width:100%;max-width:960px;height:auto;border-radius:7px}.section{margin-top:12px}.taskform{max-width:900px}.textwrap{overflow-wrap:anywhere}.checks{display:grid;gap:0}.check input{grid-column:2 / 4}.actions{display:flex;flex-wrap:wrap;gap:8px}pre.secret{white-space:pre-wrap;word-break:break-all;background:var(--panel2);padding:15px;border-radius:7px}.hidden,[hidden]{display:none!important}.loginname{font-weight:700;margin:0}#toast{position:fixed;right:16px;top:16px;z-index:10;max-width:450px;padding:12px 18px;background:var(--good-bg);border:1px solid var(--line);border-radius:8px;color:var(--good)}button:disabled{cursor:default;opacity:.5}.badge{font-size:12px;background:var(--bad-bg);color:var(--bad);border-radius:10px;padding:1px 7px}summary{cursor:pointer}input[type=date]{min-height:36px}.neutral{color:var(--muted)}.check .yn{align-self:start}label{min-width:0}

.kanban-scroll{overflow-x:auto;min-width:0}.kanban{display:grid;grid-template-columns:repeat(7,210px);gap:10px;padding-bottom:12px}.kanban-col{display:grid;align-content:start;gap:10px;background:var(--panel2);border:1px solid var(--line);border-radius:9px;padding:12px}.kanban-col h2{font-size:17px}.candidate-tile{display:grid;gap:7px;padding:12px;text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:7px;color:var(--fg)}.candidate-tile:hover{border-color:var(--accent)}.candidate-tile small{color:var(--muted)}.candidate-tile .chip{white-space:normal;justify-self:start}.textwrap{white-space:pre-wrap;overflow-wrap:anywhere}fieldset{border:1px solid var(--line);border-radius:7px;padding:12px}fieldset legend{font-weight:700}

.module-switch{display:grid;gap:5px}.module-switch button{text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:7px;padding:9px;color:var(--fg)}.module-switch button.on{background:var(--accent);color:var(--accent-fg);border-color:var(--accent);font-weight:700}

.question-image{display:block;max-width:100%;height:auto;max-height:720px;margin:18px 0;object-fit:contain}.test-question{margin:20px 0;padding:18px;border:1px solid #ddd;border-radius:12px}.test-question legend{font-weight:600;white-space:pre-wrap}.test-question .row{align-items:flex-start;margin:10px 0}.test-question input[type=radio],.test-question input[type=checkbox]{width:auto;flex:0 0 auto}

.app{grid-template-rows:auto 1fr}
.platform-topbar{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:12px 24px;background:var(--panel);border-bottom:1px solid var(--line)}
.platform-topbar .brand{width:150px;flex:none}
.platform-top-controls{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.platform-module{display:grid;gap:3px;min-width:220px}
.platform-module span{font-size:12px;color:var(--muted)}
.platform-module select{height:42px;font-weight:700}
.account-menu summary{cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.account-menu[open]{padding:8px;background:var(--panel);border:1px solid var(--line);border-radius:8px}
@media(max-width:860px){.app{grid-template-rows:auto auto 1fr}.platform-topbar{padding:12px 16px;flex-wrap:wrap}.platform-top-controls{gap:10px}}

/* Matched, compact header controls; native select remains keyboard accessible. */
.platform-top-controls{align-items:flex-end;gap:12px}
.platform-module select{appearance:none;-webkit-appearance:none;background:var(--panel);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='m4 6 4 4 4-4' fill='none' stroke='%23566b76' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding:0 38px 0 14px;font:400 15px var(--body);height:44px;box-shadow:none;border:1px solid var(--line);border-radius:9px;min-width:270px}
.account-menu{position:relative;min-width:240px}
.account-menu summary{display:flex;align-items:center;justify-content:space-between;gap:18px;list-style:none;height:44px;padding:0 14px;font:400 15px var(--body);background:var(--panel);border:1px solid var(--line);border-radius:9px}
.account-menu summary::-webkit-details-marker{display:none}
.account-menu summary::after{content:'';width:7px;height:7px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:rotate(45deg);margin-top:-4px}
.account-menu[open]{padding:0;border:0;background:none}
.account-menu p,.account-menu>.btn{margin:8px 0}
.platform-account{display:grid;gap:3px}.platform-label{font-size:12px;color:var(--muted)}
.candidate-modal{width:min(720px,calc(100vw - 32px));max-height:calc(100dvh - 48px);overflow:auto;padding:24px;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--fg);box-shadow:0 20px 70px #0003}
.candidate-modal::backdrop{background:#142b3d66}.candidate-modal>.row{margin-bottom:18px}.candidate-modal input,.candidate-modal select{height:44px;width:100%}.teacher-group-list{padding-left:20px;margin:8px 0}
@media(max-width:560px){.platform-top-controls{width:100%;display:grid;grid-template-columns:1fr}.account-menu,.platform-module,.platform-module select{width:100%;min-width:0}}