/* ================= v6: shared by admin, teacher and class teacher ================= */

/* sidebar bottom: [settings] [language] [logout] in one row; the top bar is for phones only */
.side-foot{display:flex;flex-direction:column;gap:12px;margin-top:auto;border-top:1px solid var(--line);padding:14px 6px 0}
.side-foot .foot-icons{display:flex;gap:8px}
.topbar{display:none}
@media (max-width:860px){.topbar{display:flex;justify-content:flex-start}}

/* status pill of a problem / suggestion: colour comes from its column */
.fbp{display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 11px 0 9px;border-radius:99px;font-size:12.5px;font-weight:600;white-space:nowrap;flex:none;
  color:var(--tone);background:color-mix(in srgb,var(--tone) 10%,var(--surface));border:1px solid color-mix(in srgb,var(--tone) 22%,transparent)}
.fbp i{width:7px;height:7px;border-radius:50%;background:var(--tone)}

/* feedback list (my suggestions, problems for the class teacher) */
.fb-list{display:flex;flex-direction:column}
.fb-row{display:flex;align-items:flex-start;gap:12px;width:100%;padding:12px 10px;border:0;border-radius:12px;background:none;color:inherit;text-align:left;cursor:pointer;transition:background .15s}
.fb-row+.fb-row{border-top:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.fb-row:hover{background:var(--surface-2)}
.fb-ic{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;flex:none}
.fb-ic svg{width:18px;height:18px}
.fb-ic.issue{background:var(--rose-soft);color:var(--rose)}
.fb-ic.suggestion{background:var(--brand-soft);color:var(--brand-ink)}
.fb-bd{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.fb-bd b{font-size:14.5px;line-height:1.3}
.fb-tx{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.45}
.fb-bd small{font-size:12px;color:var(--muted);margin-top:2px}
.fb-cm{display:inline-flex;align-items:center;gap:3px;vertical-align:-2px}
.fb-row .fbp{margin-top:4px}
.fb-h h2{font-size:18px;line-height:1.3;overflow-wrap:anywhere}
.fb-text{font-size:15px;white-space:pre-wrap}

/* suggestion form */
.cat-pick{display:flex;flex-wrap:wrap;gap:6px}
.cat-pick button{height:36px;padding:0 13px;border-radius:10px;border:1.5px solid var(--line-2);background:var(--surface);color:var(--ink-2);font-weight:600;font-size:13.5px;cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.cat-pick button:hover{border-color:var(--brand)}
.cat-pick button.on{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-ink)}
.sg-err{color:var(--rose);margin:-6px 0 0}
.sugg-card{display:flex;flex-direction:column;gap:14px}
.sugg-card .fb-list{margin:0 -10px -10px}

/* achievements */
.ach-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 16px;display:flex;flex-direction:column;gap:10px}
.ach-h{display:flex;align-items:flex-start;gap:12px}
.ach-ic{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;flex:none;background:var(--warn-soft);color:var(--warn)}
.ach-ic svg{width:19px;height:19px}
.ach-t{flex:1;min-width:0}
.ach-t b{display:block;font-size:15px;line-height:1.3}
.ach-t small{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.ach-h .btn{margin:-4px -6px 0 0;color:var(--muted)}
.ach-desc{font-size:13.5px;color:var(--ink-2);white-space:pre-wrap}
.ach-photos{display:flex;flex-wrap:wrap;gap:8px}
.ach-photos .ph{position:relative;width:84px;height:84px}
.ach-photos img{width:100%;height:100%;object-fit:cover;border-radius:12px;display:block;cursor:pointer}
.ach-photos .ph button,.doc-chip button{width:24px;height:24px;border-radius:50%;border:2px solid var(--surface);background:var(--ink);color:var(--bg);display:grid;place-items:center;cursor:pointer;padding:0;flex:none}
.ach-photos .ph button{position:absolute;top:-6px;right:-6px}
.ach-photos .ph button svg,.doc-chip button svg{width:12px;height:12px;stroke-width:2.6}
.doc-list{display:flex;flex-direction:column;gap:6px}
.doc-chip{display:flex;align-items:center;gap:10px;min-height:44px;padding:6px 10px 6px 6px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2);min-width:0}
.doc-ext{width:34px;height:32px;border-radius:8px;display:grid;place-items:center;flex:none;background:var(--brand-soft);color:var(--brand-ink);font:800 10px/1 var(--font-d);letter-spacing:.02em}
.doc-chip>a:not(.doc-dl){flex:1;min-width:0;font-size:13.5px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.doc-chip>a:not(.doc-dl):hover{color:var(--brand-ink)}
.doc-chip small{font-size:12px;color:var(--muted);white-space:nowrap}
.doc-dl{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:var(--muted);flex:none}
.doc-dl:hover{background:var(--brand-soft);color:var(--brand-ink)}
.doc-dl svg{width:17px;height:17px}
.file-add{display:flex;align-items:center;justify-content:center;gap:10px;height:56px;border:1.5px dashed var(--line-2);border-radius:14px;background:var(--surface-2);color:var(--brand-ink);font-weight:600;font-size:15px;cursor:pointer;transition:border-color .15s,background .15s}
.file-add:hover{border-color:var(--brand);background:var(--brand-soft)}
.af-list:not(:empty){display:flex;flex-direction:column;gap:10px;margin-top:6px}

/* lesson plan (teacher) */
.add-btn{margin-bottom:12px}
.grp-seg{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%;margin-bottom:14px}
.grp-seg button{height:38px;padding:0 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.plan{display:flex;flex-direction:column;gap:8px}
.plan-row{display:flex;align-items:center;gap:12px;width:100%;min-height:60px;padding:10px 14px 10px 12px;border:1.5px solid var(--line);border-radius:16px;background:var(--surface);color:inherit;text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent}
.plan-n{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;flex:none;background:var(--brand-soft);color:var(--brand-ink);font:800 13px/1 var(--font-d)}
.plan-bd{flex:1;min-width:0}
.plan-bd b{display:block;font-size:15px;line-height:1.3}
.plan-bd small{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.plan-row.past{background:var(--surface-2)}
.plan-row.past .plan-n{background:var(--ok-soft);color:var(--ok)}
.plan-row.past .plan-bd b{color:var(--ink-2)}
.g-meta{display:flex!important;gap:12px;margin-top:3px}
.g-meta span{display:inline-flex;align-items:center;gap:4px}

/* admin: circle drawer — plan and achievements filled in by teachers */
.drawer-sec{padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.plan-mini ol{margin:6px 0 0;padding:0;list-style:none;counter-reset:p;display:flex;flex-direction:column}
.plan-mini li{counter-increment:p;display:flex;align-items:baseline;gap:10px;padding:7px 0;border-bottom:1px solid color-mix(in srgb,var(--line) 65%,transparent);font-size:14px}
.plan-mini li:last-child{border-bottom:0}
.plan-mini li:before{content:counter(p);min-width:20px;font:700 12px/1 var(--font-d);color:var(--brand-ink)}
.plan-mini li span{flex:1}
.plan-mini li small{font-size:12px;color:var(--muted);white-space:nowrap}
.plan-mini li.past span{color:var(--muted)}
.plan-mini li.past:before{color:var(--ok)}

/* admin: kanban cards */
.board-hint{font-size:13px;color:var(--muted);margin:-12px 0 16px;max-width:760px}
.kb-meta{display:flex;align-items:center;gap:6px;margin-bottom:8px}
.kb-meta .kb-tag{background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}
.kb-meta .kb-tag.brand{background:var(--brand-soft);color:var(--brand-ink);border-color:transparent}
.kb-who{display:flex;flex-direction:column;min-width:0;line-height:1.3}
.kb-who .tiny{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kb-foot .sav{width:26px;height:26px;font-size:10px}
.seg button svg.xs{vertical-align:-2px}

/* ================= class teacher (desktop) ================= */
.kpis.cu-kpis{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:16px}
.cu-cols{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(300px,1fr);gap:16px;align-items:start}
.sugg-cols{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.cu-h{padding:18px 20px 6px;margin-bottom:6px}
.cu-lessons{display:flex;flex-direction:column;gap:10px;padding:4px 14px 14px}
.cu-lessons .l-st{display:inline-flex;align-items:center;gap:5px;height:28px;padding:0 11px;border-radius:99px;font-size:12.5px;font-weight:700;background:var(--grey-soft);color:var(--ink-2);white-space:nowrap;flex:none}
.cu-lessons .l-st svg{width:15px;height:15px;stroke-width:2.6}
.cu-lessons .l-st.ok{background:var(--ok-soft);color:var(--ok)}
.cu-lessons .l-st.rose{background:var(--rose-soft);color:var(--rose)}
.cu-lessons .l-st.live{background:var(--brand);color:#fff}
.cu-lessons .l-st.live i{width:7px;height:7px;border-radius:50%;background:#fff;animation:blink 1.4s ease-in-out infinite}
.abs-list .abs-row{border-radius:0}
.abs-list .abs-row:hover,.cl-lesson .kid:hover{filter:brightness(.97)}
.cu-table td{vertical-align:middle}
.cu-table .dots i{width:10px;height:10px;border-radius:3px}
.enr-tag{gap:6px;padding-right:4px;height:28px}
.enr-tag small{color:var(--muted);font-size:11.5px}
.enr-tag button{width:20px;height:20px;border:0;border-radius:6px;background:none;color:var(--muted);display:grid;place-items:center;cursor:pointer;padding:0}
.enr-tag button:hover{background:var(--rose-soft);color:var(--rose)}
.enr-tag button svg{width:13px;height:13px;stroke-width:2.4}
.enr-who{display:flex;flex-wrap:wrap;gap:6px}
.enr-list{display:flex;flex-direction:column;gap:6px;max-height:min(52vh,460px);overflow:auto}
.enr-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1.5px solid var(--line);border-radius:14px;cursor:pointer;transition:border-color .15s,background .15s}
.enr-row:hover{border-color:var(--line-2)}
.enr-row input{width:18px;height:18px;accent-color:var(--brand);flex:none}
.enr-row:has(input:checked:not([disabled])){border-color:var(--brand);background:var(--brand-soft)}
.enr-row.dis{opacity:.55;cursor:default}
.enr-bd{flex:1;min-width:0}
.enr-bd b{display:block;font-size:14px}
.enr-bd small{display:block;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:1100px){.cu-cols,.sugg-cols{grid-template-columns:minmax(0,1fr)}}
@media (max-width:860px){
  .kpis.cu-kpis{grid-template-columns:repeat(2,minmax(0,1fr))}
  .enr-tag small{display:none}
  .cu-table th:nth-child(6),.cu-table td:nth-child(6){display:none}
  .board-hint{margin-top:-8px}
}

/* ================= v7 ================= */
.set-row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.set-row b{display:block;font-size:15px}
.board-actions{margin:-4px 0 16px}

/* compact stats: one quiet line instead of big cards */
.stat-strip{display:flex;background:var(--surface);border:1px solid var(--line);border-radius:14px;margin-bottom:20px;overflow-x:auto}
.stat-strip>div{flex:1;min-width:110px;display:flex;align-items:baseline;gap:8px;padding:12px 18px}
.stat-strip>div+div{border-left:1px solid var(--line)}
.stat-strip b{font:800 20px/1 var(--font-d);font-variant-numeric:tabular-nums;color:var(--ink)}
.stat-strip span{font-size:12.5px;color:var(--muted);white-space:nowrap}
.stat-strip .ok b{color:var(--ok)}.stat-strip .no b{color:var(--rose)}.stat-strip .warn b{color:var(--warn)}
.cu-chart{margin-bottom:16px}
.cu-chart .chart.sm{height:120px;min-height:0;flex:none}

/* today: lessons as a simple timeline */
.tl-head{max-width:980px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.tl-head h3{font-size:16px}
.legend{display:flex;gap:14px;font-size:12.5px;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:9px;height:9px;border-radius:3px;background:var(--line-2)}
.legend i.yes{background:var(--ok)}.legend i.no{background:var(--rose)}
.tl{display:flex;flex-direction:column;gap:10px;max-width:980px}
.tl-item{display:grid;grid-template-columns:64px minmax(0,1fr);gap:14px;position:relative}
.tl-item:not(:last-child):before{content:"";position:absolute;left:31px;top:44px;bottom:-12px;width:2px;background:var(--line)}
.tl-time{text-align:center;padding-top:14px}
.tl-time b{display:block;font:800 16px/1.1 var(--font-d);font-variant-numeric:tabular-nums}
.tl-time small{display:block;font-size:12px;color:var(--muted);font-weight:600;margin-top:2px}
.tl-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 16px}
.tl-item.live .tl-card{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.tl-item.live .tl-time b{color:var(--brand-ink)}
.tl-item.cancelled{opacity:.55}
.tl-top{display:flex;align-items:center;gap:12px}
.tl-name{flex:1;min-width:0}
.tl-name b{display:block;font-size:15px}
.tl-name small{display:block;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tl-grp{display:inline-block;margin-left:4px;padding:1px 8px;border-radius:6px;background:var(--surface-2);border:1px solid var(--line);font-size:11.5px;font-weight:600;color:var(--ink-2);vertical-align:2px}
.tl-st{display:inline-flex;align-items:center;gap:5px;height:26px;padding:0 10px;border-radius:99px;font-size:12.5px;font-weight:700;background:var(--grey-soft);color:var(--ink-2);white-space:nowrap;flex:none}
.tl-st svg{width:14px;height:14px;stroke-width:2.6}
.tl-st.ok{background:var(--ok-soft);color:var(--ok)}
.tl-st.rose{background:var(--rose-soft);color:var(--rose)}
.tl-st.live{background:var(--brand);color:#fff}
.tl-st.live i{width:6px;height:6px;border-radius:50%;background:#fff;animation:blink 1.4s ease-in-out infinite}
.tl-kids{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;padding-top:12px;border-top:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.kd2{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px 0 9px;border-radius:9px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);font-size:13.5px;font-weight:500;cursor:pointer;transition:border-color .15s}
.kd2 svg{width:15px;height:15px;stroke-width:2.6;color:var(--muted)}
.kd2:hover{border-color:var(--line-2)}
.kd2.yes{background:var(--ok-soft);border-color:transparent}.kd2.yes svg{color:var(--ok)}
.kd2.no{background:var(--rose-soft);border-color:transparent}.kd2.no svg{color:var(--rose)}
.kd2.ex{background:var(--cyan-soft);border-color:transparent}.kd2.ex svg{color:var(--cyan)}

/* numbered groups inside a circle */
.grp-no{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex:none;background:var(--brand-soft);color:var(--brand-ink);font:800 13px/1 var(--font-d)}
.grp-no.sm{width:24px;height:24px;border-radius:7px;font-size:12px}
.grp-list{display:flex;flex-direction:column;gap:8px}
.grp-row{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:inherit;text-align:left;cursor:pointer;transition:border-color .15s}
.grp-row:hover{border-color:var(--brand)}
.grp-bd{flex:1;min-width:0}
.grp-bd b{display:block;font-size:14.5px}
.grp-bd small{display:block;font-size:12.5px;color:var(--muted)}
.grp-n{font:800 16px/1 var(--font-d);white-space:nowrap}
.grp-n small{font:500 12px var(--font);color:var(--muted)}
.grp-sec+.grp-sec{margin-top:18px}
.grp-head{display:flex;align-items:center;gap:12px;padding:4px 2px 10px}
.enr-circle+.enr-circle{margin-top:10px}
.enr-ch{display:flex;align-items:center;gap:10px;padding:6px 2px 8px}
.enr-ch b{flex:1;font-size:14.5px}
.enr-circle .enr-row{margin-left:40px}
.enr-circle .enr-row+.enr-row{margin-top:6px}
.enr-list{gap:0}

/* several topics at once */
.topic-rows{display:flex;flex-direction:column;gap:8px}
.topic-in{display:flex;align-items:center;gap:10px}
.topic-in>span{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;flex:none;background:var(--brand-soft);color:var(--brand-ink);font:800 12px/1 var(--font-d)}
.topic-in .input{height:48px}
.topic-in button{width:36px;height:36px;border-radius:10px;border:0;background:none;color:var(--muted);display:grid;place-items:center;cursor:pointer;flex:none}
.topic-in button svg{width:18px;height:18px}
.topic-more{display:flex;align-items:center;justify-content:center;gap:8px;height:46px;border:1.5px dashed var(--line-2);border-radius:14px;background:none;color:var(--brand-ink);font-weight:600;font-size:15px;cursor:pointer}
@media (max-width:860px){
  .tl-item{grid-template-columns:48px minmax(0,1fr);gap:10px}
  .tl-item:not(:last-child):before{left:23px}
  .enr-circle .enr-row{margin-left:0}
  .set-row{flex-wrap:wrap}
}
.enr-list>.enr-row+.enr-row{margin-top:6px}
@media (max-width:860px){
  .stat-strip{display:grid;grid-template-columns:1fr 1fr}
  .stat-strip>div{min-width:0;border-left:0!important;border-top:1px solid var(--line)}
  .stat-strip>div:nth-child(-n+2){border-top:0}
  .stat-strip>div:nth-child(even){border-left:1px solid var(--line)!important}
}

/* language switch next to logout: same height, one row */
.foot-icons .lang-sw{height:40px;padding:4px;border-radius:12px;flex:1;display:flex}
.foot-icons .lang-sw button{flex:1;height:32px;border-radius:9px}
.foot-icons .foot-btn.wide{flex:1;justify-content:center}

/* ================= v8: kanban (messages → tasks → class teachers) ================= */
/* sidebar: the school on top, Codelab above the logout button */
.made-by{display:block;width:118px;height:auto;margin:0 6px;opacity:.8}
.app .made-by{width:132px;margin:10px auto 0;opacity:.7}
.stat-strip .new b{color:var(--brand-ink)}

.tk-board{grid-template-columns:repeat(3,minmax(260px,1fr))}
.kb-card.tk{position:relative;padding:12px 14px 13px}
.kb-card.tk.urgent:before{content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;background:var(--rose)}
.kb-card.tk.today{border-color:color-mix(in srgb,var(--warn) 45%,var(--line));background:color-mix(in srgb,var(--warn-soft) 45%,var(--surface))}
.kb-card.tk.over{border-color:color-mix(in srgb,var(--rose) 40%,var(--line));background:color-mix(in srgb,var(--rose-soft) 40%,var(--surface))}
.kb-card.tk.unseen{box-shadow:0 0 0 2px var(--brand-soft);border-color:color-mix(in srgb,var(--brand) 45%,var(--line))}
.kb-card.tk.sel{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.kb-card.tk .kb-title{margin:8px 0 2px;line-height:1.35}
.kb-card.tk .kb-text{-webkit-line-clamp:2;font-size:12.5px}
.kb-card:not([draggable]){cursor:pointer}
.tk-top{display:flex;align-items:center;gap:6px;flex-wrap:wrap;min-height:22px}
.tk-top .spacer{flex:1}
.tk-type,.tk-due,.tk-urg,.tk-ret,.tk-new,.tk-mini{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 7px;border-radius:7px;font-size:11.5px;font-weight:600;white-space:nowrap}
.tk-type svg,.tk-due svg,.tk-ret svg,.tk-mini svg,.tk-cls svg,.tk-who svg{width:12px;height:12px;stroke-width:2.2}
.tk-type{background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}
.tk-type.ty-problem{background:var(--rose-soft);color:var(--rose);border-color:transparent}
.tk-type.ty-suggestion{background:var(--brand-soft);color:var(--brand-ink);border-color:transparent}
.tk-urg{background:var(--rose);color:#fff}
.tk-new{background:var(--brand);color:#fff}
.tk-ret{background:var(--rose-soft);color:var(--rose)}
.tk-due{color:var(--muted);padding:0 2px}
.tk-due.soon{color:var(--ink-2)}
.tk-due.today{background:var(--warn-soft);color:var(--warn);padding:0 7px}
.tk-due.over{background:var(--rose);color:#fff;padding:0 7px}
.tk-cb{margin:0 0 0 2px}
.tk-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:12px;color:var(--muted)}
.tk-foot .spacer{flex:1}
.tk-who,.tk-cls{display:inline-flex;align-items:center;gap:4px;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tk-who{color:var(--ink-2);font-weight:500}
.tk-mini{height:20px;padding:0 4px;color:var(--muted);font-weight:500}
.tk-prog{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:12px;font-weight:700;color:var(--ink-2);font-variant-numeric:tabular-nums}
.tk-prog .sbar{flex:1}
.tk-prog .sbar i{background:var(--ok);opacity:1}
.tk-prog.big{margin:0 0 10px}
.tk-prog.big .sbar{height:8px}

/* card / task drawer */
.tk-h{align-items:flex-start;position:relative}
.tk-h h2{font-size:18px;line-height:1.3;margin-top:8px;overflow-wrap:anywhere}
.tk-h.urgent:before{content:"";position:absolute;left:0;top:22px;width:4px;height:44px;border-radius:0 4px 4px 0;background:var(--rose)}
.tk-sec{font-size:15px;margin-bottom:10px}
.move-seg.three{grid-template-columns:repeat(3,1fr)}
.tk-note{border-radius:12px;padding:10px 12px;font-size:14px;white-space:pre-wrap}
.tk-note b{display:block;font-size:12px;margin-bottom:2px}
.tk-note.ok{background:var(--ok-soft)}.tk-note.ok b{color:var(--ok)}
.tk-note.rose{background:var(--rose-soft)}.tk-note.rose b{color:var(--rose)}
.tk-person{display:flex;align-items:center;gap:12px}
.tk-person>div{flex:1;min-width:0}
.tk-person b{display:block;font-size:15px}
.tk-person small{display:block;font-size:12.5px;color:var(--muted)}
.tk-check{display:flex;flex-direction:column}
.tk-check .check{padding:7px 6px;align-items:flex-start}
.tk-check .check input{margin-top:1px}
.tk-check .check:has(input:checked) span{color:var(--muted);text-decoration:line-through}
.tk-help{color:var(--muted);border-style:dashed}
.tk-help:hover{color:var(--rose);border-color:var(--rose)}
.tk-acts{display:flex;flex-direction:column;gap:8px;padding-top:16px;border-top:1px solid var(--line)}
.tk-people{display:flex;flex-direction:column;gap:6px}
.tk-prow{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:inherit;text-align:left;cursor:pointer;transition:border-color .15s}
.tk-prow:hover{border-color:var(--brand)}
.tk-pbd{flex:1;min-width:0}
.tk-pbd b{display:block;font-size:14px}
.tk-pbd small{display:block;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tk-hist summary{cursor:pointer;font-weight:600;font-size:14px;color:var(--muted);padding:6px 0}
.tk-hist ol{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:13px}
.tk-hist li{display:grid;grid-template-columns:118px 1fr;gap:10px}
.tk-hist li>span{color:var(--muted);font-variant-numeric:tabular-nums}

/* admin: inbox */
.msg-row{display:flex;align-items:flex-start;gap:12px;padding:16px 20px;border-bottom:1px solid color-mix(in srgb,var(--line) 65%,transparent)}
.msg-row:last-child{border-bottom:0}
.msg-row.sel{background:color-mix(in srgb,var(--brand-soft) 55%,transparent)}
.msg-row>.cb{margin-top:9px}
.msg-bd{flex:1;min-width:0}
.msg-meta{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.msg-meta b{font-size:14px}
.msg-meta span{font-size:12.5px;color:var(--muted)}
.msg-bd p{margin:4px 0 0;font-size:14.5px;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere}
.msg-row.done .msg-bd p{color:var(--ink-2)}
.msg-res{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:4px 10px;border-radius:8px;background:var(--surface-2);border:1px solid var(--line);font-size:12.5px;color:var(--ink-2);max-width:100%}
.msg-res span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.msg-res svg{width:14px;height:14px}
.msg-res.link{cursor:pointer;font:inherit;font-size:12.5px;color:var(--brand-ink)}
.msg-res.link:hover{border-color:var(--brand)}
.msg-act{display:flex;gap:6px;flex:none}
.ret-card{margin-bottom:16px;border-color:color-mix(in srgb,var(--rose) 35%,var(--line))}
.ret-h{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 20px 8px;color:var(--rose)}
.ret-h b{color:var(--ink)}
.ret-sub{flex-basis:100%;margin-top:-2px}
.ret-row{display:flex;align-items:center;gap:12px;width:100%;padding:12px 20px;border:0;border-top:1px solid color-mix(in srgb,var(--line) 65%,transparent);background:none;color:inherit;text-align:left;cursor:pointer}
.ret-row:hover{background:var(--surface-2)}
.ret-bd{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.ret-bd b{font-size:14px}
.ret-bd small{font-size:12px;color:var(--muted)}
.ret-bd span{font-size:13.5px;color:var(--ink-2)}
.tk-filters select{width:auto;max-width:220px;height:38px;font-size:13.5px}
.cur-t td{vertical-align:middle}

/* admin: task form */
.seg.full{display:flex;width:100%}
.seg.full button{flex:1;padding:0 8px}
.seg button.urg.on{background:var(--rose);color:#fff}
.due-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.due-row .input{width:auto;flex:none}
.due-row .chip{height:36px;padding:0 12px;font-size:13px}
.due-row .chip.on{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-ink)}
.pick-list:not(:empty){display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:6px;margin-top:10px}
.pick{display:flex;flex-direction:column;gap:1px;position:relative;padding:8px 12px 8px 36px;border:1.5px solid var(--line);border-radius:12px;cursor:pointer;transition:border-color .15s,background .15s}
.pick input{position:absolute;left:12px;top:11px;width:16px;height:16px;accent-color:var(--brand)}
.pick b{font-size:14px}
.pick small{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pick:has(input:checked){border-color:var(--brand);background:var(--brand-soft)}
.pick.dis{opacity:.5;cursor:not-allowed}
#fSum:not(:empty){margin-top:8px}
.tk-src{display:flex;flex-direction:column;gap:8px;max-height:180px;overflow:auto;padding:10px 12px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);font-size:14px;white-space:pre-wrap}
.tk-src>div+div{padding-top:8px;border-top:1px solid var(--line)}
.file-add.sm{height:44px;font-size:14px;margin-top:6px}

/* message form (teacher, class teacher) */
.msg-form{display:flex;flex-direction:column;gap:14px}
.msg-form textarea{font-size:16px;min-height:130px;resize:vertical}
.msg-done{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:26px 8px 18px;animation:pageIn .3s var(--ease)}
.msg-done>svg{width:56px;height:56px;padding:13px;border-radius:50%;background:var(--ok-soft);color:var(--ok);stroke-width:2.6}
.msg-done.queued>svg{background:var(--warn-soft);color:var(--warn)}
.msg-done b{font:800 20px/1.2 var(--font-d)}
.shake{animation:shake .35s;border-color:var(--rose)!important}
@keyframes shake{20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}
.msg-top{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 12px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--brand-ink);font:600 13.5px var(--font);cursor:pointer;flex:none;-webkit-tap-highlight-color:transparent}
.msg-top svg{width:18px;height:18px}

@media (max-width:860px){
  .tk-board{grid-template-columns:repeat(3,minmax(250px,86vw))}
  .msg-row{flex-wrap:wrap;padding:14px 16px}
  .msg-act{width:100%;padding-left:52px}
  .tk-filters select{flex:1 1 140px;max-width:none}
  .tk-hist li{grid-template-columns:1fr;gap:0}
}
/* selection checkboxes appear on hover, or everywhere once something is selected */
.tk-cb{opacity:0;transition:opacity .15s}
.kb-card:hover .tk-cb,.kb-card:focus-within .tk-cb,.tk-cb:checked,.selecting .tk-cb{opacity:1}
@media (hover:none){.tk-cb{opacity:1}}

/* ================= v9: server — loading, busy buttons ================= */
.boot-load{position:fixed;inset:0;display:grid;place-items:center}
.boot-load:after{content:"";width:34px;height:34px;border-radius:50%;border:3px solid var(--brand-soft);border-top-color:var(--brand);animation:spin .8s linear infinite}
.boot-fail{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:24px;text-align:center}
@keyframes spin{to{transform:rotate(360deg)}}
/* a request is running: the control is locked, a button shows a spinner instead of its text */
.busy{pointer-events:none;cursor:progress}
.btn.busy{position:relative;color:transparent!important}
.btn.busy>*{visibility:hidden}
.btn.busy:after{content:"";position:absolute;left:50%;top:50%;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;border:2.5px solid currentColor;border-color:var(--brand) transparent var(--brand) var(--brand);animation:spin .7s linear infinite}
.btn.primary.busy:after,.btn.danger.busy:after{border-color:#fff transparent #fff #fff}
select.busy,input.busy{opacity:.6}
.cam-send.busy{opacity:.8}

/* login: the Codelab logo on top, "Powered by" under the button */
.lm-brand{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;margin-bottom:22px}
.lm-brand img{width:150px;height:auto;display:block}
.lm-brand span{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.01em}
.lm-foot{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);text-align:center;font-size:12px;color:var(--muted);line-height:1.6}
.lm-foot b{color:var(--ink-2);font-weight:700}
.lm-foot span{display:block}

/* login: the logo, the system name, the title and the school are centred; the form stays left-aligned */
.lm-box>h1,.lm-box>h1+p{text-align:center}