#tchCalendar,.teacher-mode .cal-pop{--navy: #10233f;--blue: #4778ee;--blue2: #6e91f5;--ink: #152238;--muted: #65748b;--line: #dfe7f3;--surface: #fff;--bg: #f3f6fb;--soft: #eef3ff;--danger: #c53d50;--shadow: 0 14px 40px rgba(34, 61, 110, .1);--cal-line: var(--line);--cal-line-soft: color-mix(in srgb, var(--line) 55%, transparent);--cal-hover: color-mix(in srgb, var(--soft) 45%, transparent);--cal-dim: color-mix(in srgb, var(--muted) 62%, transparent);--cal-gutter: 56px;--cal-hour: 48px;--cal-rail: 224px;--cal-now: #ea4335;--cal-on-event: #fff}[data-theme=dark] #tchCalendar,[data-theme=dark] .teacher-mode .cal-pop{--navy: #fff;--ink: #f5f5f5;--muted: #b3b3b3;--line: #3a3a3a;--surface: #1c1c1c;--bg: #050505;--soft: #292929;--shadow: 0 14px 40px rgba(0, 0, 0, .42);--cal-now: #ff6b7a}#tchCalendar{width:100%;max-width:none;height:100dvh;min-height:0;margin:0;padding:16px 68px 18px 24px;overflow:hidden}#tchCalendar .primary{border:0;border-radius:12px;padding:11px 17px;color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue2));box-shadow:0 7px 18px #4778ee35;font-weight:850}.cal{display:grid;grid-template-columns:var(--cal-rail) minmax(0,1fr);gap:18px;height:100%;min-height:0}.cal-main{border:1px solid var(--cal-line);border-radius:14px;background:var(--surface);overflow:hidden;min-width:0;min-height:0;display:flex;flex-direction:column}.cal-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid var(--cal-line)}.cal-bar h2{margin:0 auto 0 10px;font-size:19px;font-weight:650;letter-spacing:-.015em;color:var(--ink);font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cal-bar .primary{padding:8px 14px;font-size:13px}.cal-nav{width:32px;height:32px;flex:none;display:grid;place-items:center;padding:0;border:0;border-radius:50%;background:transparent;color:var(--muted);font-size:19px;line-height:1;transition:background .12s ease}.cal-nav:hover{background:var(--cal-hover);color:var(--ink)}.cal-today-btn{height:32px;padding:0 14px;border:1px solid var(--cal-line);border-radius:8px;background:transparent;color:var(--ink);font-size:13px;font-weight:600;margin-right:4px}.cal-today-btn:hover{background:var(--cal-hover)}.cal-switch{display:flex;gap:2px;padding:2px;background:var(--soft);border-radius:9px;margin-right:8px}.cal-switch button{border:0;background:transparent;padding:6px 13px;border-radius:7px;font-size:12.5px;font-weight:600;color:var(--muted);transition:.12s ease}.cal-switch button:hover{color:var(--ink)}.cal-switch button.active{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px #00000024}.cal-rail{display:grid;gap:16px;align-content:start;min-height:0;overflow-y:auto;padding:1px}.cal-mini{border:1px solid var(--cal-line);border-radius:14px;background:var(--surface);padding:12px}.cal-mini-head{display:flex;align-items:center;gap:2px;margin-bottom:6px}.cal-mini-head strong{flex:1;min-width:0;font-size:13px;font-weight:650;color:var(--ink);padding-left:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cal-mini-head .cal-nav{width:26px;height:26px;font-size:15px}.cal-mini-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px}.cal-mini-grid span{text-align:center;font-size:10px;font-weight:700;letter-spacing:.03em;color:var(--cal-dim);padding:4px 0}.cal-mini-grid button{position:relative;width:100%;aspect-ratio:1;border:0;border-radius:50%;background:transparent;font-size:11px;font-weight:500;color:var(--ink);font-variant-numeric:tabular-nums;display:grid;place-items:center;cursor:pointer}.cal-mini-grid button:hover{background:var(--cal-hover)}.cal-mini-grid button.out{color:var(--cal-dim)}.cal-mini-grid button.sel:not(.today){background:var(--soft);color:var(--blue);font-weight:650}.cal-mini-grid button.today{background:var(--blue);color:#fff;font-weight:650}.cal-mini-grid button.has:after{content:"";position:absolute;bottom:2px;left:50%;transform:translate(-50%);width:3px;height:3px;border-radius:50%;background:var(--blue)}.cal-mini-grid button.today.has:after{background:#fff}.cal-mini-grid button.rng{background:var(--soft);color:var(--blue);font-weight:650;border-radius:0;box-shadow:-1px 0 0 var(--soft),1px 0 0 var(--soft)}.cal-mini-grid button.rng.rng-a{border-radius:999px 0 0 999px;box-shadow:1px 0 0 var(--soft)}.cal-mini-grid button.rng.rng-b{border-radius:0 999px 999px 0;box-shadow:-1px 0 0 var(--soft)}.cal-mini-grid button.rng.rng-a.rng-b{border-radius:999px;box-shadow:none}.cal-mini-grid button.rng.today{background:var(--blue);color:#fff;border-radius:999px}.cal-mini.dragging{user-select:none;-webkit-user-select:none}.cal-filters{min-width:0;border:1px solid var(--cal-line);border-radius:14px;background:var(--surface);padding:12px 10px}.cal-filters h3{margin:0 0 6px;padding-left:7px;font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}.cal-filter{position:relative;display:flex;align-items:center;gap:9px;width:100%;padding:6px 7px;border:0;border-radius:8px;background:transparent;text-align:left;cursor:pointer}.cal-filter:hover{background:var(--cal-hover)}.cal-filter input{position:absolute;opacity:0;pointer-events:none}.cal-filter .swatch{flex:none;width:14px;height:14px;border-radius:4.5px;background:var(--event, var(--blue));display:grid;place-items:center;color:#fff;transition:.12s ease}.cal-filter .swatch:after{content:"\2713";font-size:9px;font-weight:900;line-height:1}.cal-filter.off .swatch{background:transparent;box-shadow:inset 0 0 0 2px var(--event, var(--blue))}.cal-filter.off .swatch:after{content:""}.cal-filter .name{flex:1;min-width:0;font-size:12.5px;font-weight:550;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cal-filter.off .name{color:var(--muted)}.cal-feeds h3{margin-top:0}.cal-feeds-empty{margin:0 0 4px;padding:0 7px;font-size:12px;line-height:1.5;color:var(--muted)}.cal-feed-add.lead{color:var(--blue);font-weight:650}.cal-feed-add.lead:hover{background:var(--soft);color:var(--blue)}.cal-feed-row{gap:4px;padding-right:3px}.cal-feed-check{display:flex;align-items:center;gap:9px;flex:1;min-width:0;cursor:pointer}.cal-feed-check input{position:absolute;opacity:0;pointer-events:none}.cal-feed-app{flex:none;width:13px;height:13px;display:block}.cal-feed-row.off .cal-feed-app{opacity:.5}.cal-feed-row .name{flex:1;min-width:0;font-size:12.5px;font-weight:550;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cal-feed-row.off .name{color:var(--muted)}.cal-feed-menu{flex:none;width:22px;height:22px;border:0;border-radius:6px;background:transparent;color:var(--muted);display:grid;place-items:center;cursor:pointer;opacity:0;transition:opacity .12s ease}.cal-feed-row:hover .cal-feed-menu,.cal-feed-menu:focus-visible{opacity:1}.cal-feed-menu:hover{background:var(--soft);color:var(--ink)}.cal-feed-warn{flex:none;font-size:13px;color:var(--danger)}.cal-feed-row.broken .swatch{box-shadow:inset 0 0 0 2px var(--danger)}.cal-feed-rename{width:100%;min-width:0;border:1px solid var(--blue);border-radius:6px;padding:2px 6px;background:var(--surface);font:inherit;font-size:12.5px;color:var(--ink)}.cal-feed-add{display:flex;align-items:center;gap:9px;width:100%;margin-top:2px;padding:6px 7px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:12.5px;font-weight:600;text-align:left;cursor:pointer}.cal-feed-add:hover{background:var(--cal-hover);color:var(--ink)}.cal-feed-add i{width:14px;font-size:13px;display:grid;place-items:center}.cal-feed-meta{line-height:1.5}.cal-feed-note{font-size:12px;font-style:italic}.cal-feed-error-line{color:var(--danger)}.cal-pop-actions .danger{margin-left:auto;background:transparent;color:var(--danger)}.cal-feed-dialog{width:min(460px,calc(100vw - 32px));border:0;border-radius:18px;padding:0;background:var(--surface, #fff);color:var(--ink, #152238);box-shadow:0 24px 70px #0f19324d}.cal-feed-dialog::backdrop{background:#10233f73;backdrop-filter:blur(2px)}.cal-feed-form{display:flex;flex-direction:column;gap:12px;padding:20px 22px 18px}.cal-feed-form header{display:flex;align-items:center;gap:10px}.cal-feed-form h2{flex:1;margin:0;font-size:18px;font-weight:700}.cal-feed-close{flex:none;width:30px;height:30px;border:0;border-radius:50%;background:transparent;color:var(--muted, #65748b);font-size:16px;display:grid;place-items:center;cursor:pointer}.cal-feed-close:hover{background:var(--soft, #eef3ff);color:inherit}.cal-feed-lead{margin:0;font-size:13px;line-height:1.55;color:var(--muted, #65748b)}.cal-feed-apps{display:flex;flex-wrap:wrap;gap:6px}.cal-feed-app-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line, #dfe7f3);border-radius:999px;padding:6px 12px;background:var(--bg, #f3f6fb);font:inherit;font-size:12.5px;font-weight:600;color:var(--ink, #152238);cursor:pointer}.cal-feed-app-chip img{width:15px;height:15px;display:block}.cal-feed-app-chip:hover{border-color:var(--blue, #4778ee)}.cal-feed-app-chip[aria-pressed=true]{border-color:var(--blue, #4778ee);background:color-mix(in srgb,var(--blue, #4778ee) 12%,transparent);color:var(--blue, #4778ee)}.cal-feed-steps{display:flex;flex-direction:column;gap:11px;border:1px solid var(--line, #dfe7f3);border-radius:12px;padding:12px 14px;background:var(--bg, #f3f6fb);font-size:12.5px;color:var(--muted, #65748b)}.cal-feed-stepslist{display:flex;flex-direction:column;gap:5px;margin:0;padding-left:17px;line-height:1.5}.cal-feed-stepslist b{color:var(--ink, #152238)}.cal-feed-host{display:flex;flex-direction:column;gap:5px;font-size:12px;font-weight:700;color:var(--muted, #65748b)}.cal-feed-host-row{display:flex;gap:6px}.cal-feed-host-row input{flex:1;min-width:0;border:1px solid var(--line, #dfe7f3);border-radius:9px;padding:8px 10px;background:var(--surface, #fff);font:inherit;font-size:13px;font-weight:500;color:var(--ink, #152238)}.cal-feed-host-row input:focus-visible{outline:2px solid var(--blue, #4778ee);outline-offset:1px}.cal-feed-host-go{flex:none;display:inline-flex;align-items:center;gap:5px;border-radius:9px;padding:8px 12px;background:var(--blue, #4778ee);color:#fff;font-size:12.5px;font-weight:650;text-decoration:none;white-space:nowrap}.cal-feed-host-go[aria-disabled=true]{opacity:.45;pointer-events:none}.cal-feed-field{display:flex;flex-direction:column;gap:5px;font-size:12px;font-weight:700;color:var(--muted, #65748b)}.cal-feed-field small{font-weight:500;text-transform:none;opacity:.8}.cal-feed-field input{border:1px solid var(--line, #dfe7f3);border-radius:10px;padding:10px 12px;background:var(--bg, #f3f6fb);font:inherit;font-size:13.5px;font-weight:500;color:var(--ink, #152238)}.cal-feed-field input:focus-visible{outline:2px solid var(--blue, #4778ee);outline-offset:1px}.cal-feed-error{margin:0;padding:9px 11px;border-radius:10px;background:color-mix(in srgb,var(--danger, #c53d50) 12%,transparent);color:var(--danger, #c53d50);font-size:12.5px;line-height:1.5}.cal-feed-privacy{margin:0;font-size:12px;line-height:1.5;color:var(--muted, #65748b)}.cal-feed-form footer{display:flex;justify-content:flex-end;gap:8px;margin-top:2px}.cal-feed-form footer button{border:0;border-radius:10px;padding:9px 16px;font:inherit;font-size:13px;font-weight:650;cursor:pointer}.cal-feed-form footer .ghost{background:transparent;color:var(--muted, #65748b)}.cal-feed-form footer .primary{background:var(--blue, #4778ee);color:#fff}.cal-feed-form footer .primary:disabled{opacity:.65;cursor:progress}[data-theme=dark] .cal-feed-dialog{--surface: #1c1c1c;--ink: #f5f5f5;--muted: #b3b3b3;--line: #333;--bg: #242424;--soft: #2b2b2b}.cal-month-wrap{display:flex;flex-direction:column;flex:1 1 auto;min-height:0}.cal-heads{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));border-bottom:1px solid var(--cal-line)}.cal-head{padding:8px 0 9px;text-align:center;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:transparent}.cal-month{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));grid-auto-rows:minmax(64px,1fr);flex:1 1 auto;min-height:0;overflow-y:auto}.cal-day{position:relative;min-width:0;padding:3px 4px 5px;border-right:1px solid var(--cal-line);border-bottom:1px solid var(--cal-line);background:var(--surface);display:flex;flex-direction:column;gap:2px;cursor:pointer;transition:background .12s ease}.cal-day:nth-child(7n){border-right:0}.cal-month .cal-day:nth-last-child(-n+7){border-bottom:0}.cal-day:hover{background:var(--cal-hover)}.cal-day.muted .day-num{opacity:.45}.day-num{align-self:center;min-width:24px;height:24px;display:grid;place-items:center;padding:0 5px;border-radius:12px;font-size:12px;font-weight:500;color:var(--ink);font-variant-numeric:tabular-nums}button.day-num{border:0;background:transparent;cursor:pointer;transition:background .12s ease}button.day-num:hover{background:var(--soft)}.cal-day.today .day-num,.cal-time-head.today .day-num{background:var(--blue);color:#fff;font-weight:650}.cal-day .cal-cycle-day{position:absolute;top:5px;left:5px;margin:0}.cal-more{margin:1px 2px 0;padding:2px 6px;flex:none;border:0;border-radius:4px;background:transparent;text-align:left;font-size:11px;font-weight:600;color:var(--muted);cursor:pointer}.cal-more:hover{background:var(--cal-hover);color:var(--ink)}.cal-event{position:relative;display:flex;align-items:center;gap:5px;width:100%;flex:none;height:20px;padding:0 6px;border:0;border-radius:4px;background:transparent;text-align:left;font-size:11.5px;font-weight:500;color:var(--ink);white-space:nowrap;overflow:hidden;cursor:pointer;transition:background .12s ease}.cal-event:hover{background:var(--cal-hover)}.cal-event:before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--event, var(--blue))}.cal-event time{flex:none;font-size:11px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums}.cal-event .t{min-width:0;overflow:hidden;text-overflow:ellipsis}.cal-event.filled{background:var(--event, var(--blue));color:var(--cal-on-event)}.cal-event.filled:before{display:none}.cal-event.filled time{color:inherit;opacity:.85}.cal-event.filled:hover{background:var(--event, var(--blue));filter:brightness(.93)}.cal-event.done{opacity:.55}.cal-event.done .t{text-decoration:line-through}.cal-time{display:flex;flex-direction:column;min-width:0;flex:1 1 auto;min-height:0}.cal-time-heads{display:grid;grid-template-columns:var(--cal-gutter) repeat(var(--cols, 7),minmax(0,1fr));overflow-y:hidden;scrollbar-gutter:stable}.cal-time-head{padding:8px 0 7px;text-align:center;border-left:1px solid var(--cal-line)}.cal-time-head .dow{display:block;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.cal-time-head.today .dow{color:var(--blue)}.cal-time-head .day-num{margin:4px auto 0;min-width:32px;height:32px;font-size:16px;border-radius:16px}.cal-time-head .cal-cycle-day{display:block;width:max-content;margin:4px auto 0}.cal-allday{display:grid;grid-template-columns:var(--cal-gutter) repeat(var(--cols, 7),minmax(0,1fr));border-top:1px solid var(--cal-line);border-bottom:1px solid var(--cal-line);min-height:26px;max-height:76px;overflow-y:auto;scrollbar-gutter:stable}.cal-allday-label{display:flex;align-items:center;justify-content:flex-end;padding:0 8px;font-size:10px;font-weight:600;color:var(--cal-dim)}.cal-allday-col{padding:3px 4px;display:flex;flex-direction:column;justify-content:center;gap:2px;border-left:1px solid var(--cal-line);min-width:0}.cal-time-body{position:relative;display:grid;grid-template-columns:var(--cal-gutter) repeat(var(--cols, 7),minmax(0,1fr));height:auto;flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable}.cal-hours{position:relative;pointer-events:none}.cal-hours span{position:absolute;right:8px;transform:translateY(-7px);font-size:11px;color:var(--cal-dim);font-variant-numeric:tabular-nums}.cal-col{position:relative;border-left:1px solid var(--cal-line);min-width:0;cursor:pointer;background:repeating-linear-gradient(to bottom,var(--cal-line) 0 1px,transparent 1px var(--cal-hour)),repeating-linear-gradient(to bottom,transparent 0 calc(var(--cal-hour)/2),var(--cal-line-soft) calc(var(--cal-hour)/2) calc(var(--cal-hour)/2 + 1px),transparent calc(var(--cal-hour)/2 + 1px) var(--cal-hour))}.cal-block{position:absolute;display:flex;flex-direction:column;gap:0;padding:3px 6px 3px 9px;border:1px solid var(--surface);border-radius:6px;text-align:left;overflow:hidden;font-size:11.5px;line-height:1.3;background:color-mix(in srgb,var(--event, var(--blue)) 14%,var(--surface));color:color-mix(in srgb,var(--event, var(--blue)) 68%,var(--ink));box-shadow:inset 3px 0 0 var(--event, var(--blue));cursor:pointer;transition:filter .12s ease,box-shadow .12s ease}.cal-block:hover{filter:brightness(.965);box-shadow:inset 3px 0 0 var(--event, var(--blue)),0 4px 10px #00000024}.cal-block strong{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cal-block small{font-size:11px;opacity:.85;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cal-block.compact{flex-direction:row;align-items:center;gap:5px;padding-top:0;padding-bottom:0}.cal-block.due{background:var(--event, var(--blue));color:var(--cal-on-event);box-shadow:none}.cal-block.due small{opacity:.9}.cal-block.from-schedule{background:color-mix(in srgb,var(--event, var(--blue)) 9%,var(--surface));box-shadow:inset 2px 0 color-mix(in srgb,var(--event, var(--blue)) 55%,transparent)}.cal-block.done{opacity:.5}.cal-block.done strong{text-decoration:line-through}.cal-now{position:absolute;left:0;right:0;height:0;border-top:2px solid var(--cal-now);z-index:30;pointer-events:none}.cal-now:before{content:"";position:absolute;left:-5px;top:-6px;width:10px;height:10px;border-radius:50%;background:var(--cal-now)}.cal-pop{position:fixed;z-index:120;width:300px;max-width:calc(100vw - 24px);background:var(--surface);border:1px solid var(--cal-line);border-radius:14px;box-shadow:0 18px 50px #0f193247;padding:14px 16px 12px;color:var(--ink)}.cal-pop-head{display:flex;align-items:flex-start;gap:9px}.cal-pop-head .dot{flex:none;width:12px;height:12px;border-radius:4px;background:var(--event, var(--blue));margin-top:3px}.cal-pop-head strong{flex:1;min-width:0;font-size:15px;font-weight:650;line-height:1.3;overflow-wrap:anywhere}.cal-pop-close{flex:none;width:26px;height:26px;border:0;border-radius:50%;background:transparent;color:var(--muted);font-size:16px;display:grid;place-items:center;cursor:pointer}.cal-pop-close:hover{background:var(--cal-hover);color:var(--ink)}.cal-pop-meta{margin:6px 0 0 21px;font-size:12.5px;color:var(--muted)}.cal-pop-tag{display:inline-block;margin:9px 0 0 21px;padding:2px 8px;border-radius:999px;background:var(--soft);color:var(--muted);font-size:11px;font-weight:650}.cal-pop-actions{display:flex;gap:6px;margin-top:12px;padding-top:10px;border-top:1px solid var(--cal-line)}.cal-pop-actions button{border:0;border-radius:8px;padding:7px 11px;font-size:12.5px;font-weight:650;background:var(--soft);color:var(--ink);cursor:pointer}.cal-pop-actions button:hover{filter:brightness(.96)}.cal-pop-actions .cal-pop-delete{margin-left:auto;background:transparent;color:var(--danger)}.cal-pop-list{display:flex;flex-direction:column;gap:2px;margin-top:10px;max-height:280px;overflow-y:auto}.cal-pop-empty{margin:10px 0 2px;font-size:12.5px;color:var(--muted)}.teacher-mode .cal-event.tentative,#tchCalendar .cal-event.tentative,#tchCalendar .cal-block.tentative{background:transparent;border:1px dashed color-mix(in srgb,var(--event, var(--blue)) 62%,transparent);color:color-mix(in srgb,var(--event, var(--blue)) 78%,var(--ink))}#tchCalendar .cal-block.tentative{box-shadow:none}#tchCalendar .cal-block.tentative:before{display:none}#tchCalendar .cal-block.tentative strong{font-weight:600}#tchCalendar .cal-block.invited{position:relative}#tchCalendar .cal-event.invited:after,#tchCalendar .cal-block.invited:after{content:"";position:absolute;top:3px;right:3px;width:5px;height:5px;border-radius:50%;background:var(--event, var(--blue));opacity:.75}.teacher-mode .cal-guests,#tchCalendar .cal-guests{margin:12px 0 0;padding-top:11px;border-top:1px solid var(--cal-line)}.teacher-mode .cal-guests-head{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:700;color:var(--muted)}.teacher-mode .cal-guests-head i{font-size:14px}.teacher-mode .cal-guests-head>span{flex:1;min-width:0}.teacher-mode .cal-guests-add{display:inline-flex;align-items:center;gap:5px;border:0;border-radius:999px;padding:4px 10px;background:var(--soft);color:var(--ink);font-size:11.5px;font-weight:650;cursor:pointer}.teacher-mode .cal-guests-add:hover{filter:brightness(.96)}.teacher-mode .cal-guests-add i{font-size:13px}.teacher-mode .cal-guest-list{list-style:none;margin:9px 0 0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:204px;overflow-y:auto}.teacher-mode .cal-guest{display:flex;align-items:center;gap:9px;padding:4px 4px 4px 0;border-radius:9px}.teacher-mode .cal-guest:hover{background:var(--cal-hover)}.teacher-mode .cal-guest-face{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:10.5px;font-weight:750;overflow:hidden;color:#fff;background:hsl(var(--face-h, 220) 52% 52%)}.teacher-mode .cal-guest-face img{width:100%;height:100%;object-fit:cover}.teacher-mode .cal-guest-who{flex:1;min-width:0;display:grid;gap:1px}.teacher-mode .cal-guest-who strong{font-size:12.5px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.teacher-mode .cal-guest-who small{font-size:10.5px;color:var(--muted)}.teacher-mode .cal-guest-mark{flex:none;font-size:14px;color:var(--cal-dim)}.teacher-mode .cal-guest.is-accepted .cal-guest-mark{color:#1a8a53}.teacher-mode .cal-guest.is-declined .cal-guest-mark{color:var(--danger)}.teacher-mode .cal-guest.is-maybe .cal-guest-mark{color:#b8791f}.teacher-mode .cal-guest.is-declined .cal-guest-who strong{opacity:.62}.teacher-mode .cal-guest-drop{flex:none;width:22px;height:22px;border:0;border-radius:50%;background:transparent;color:var(--muted);display:grid;place-items:center;cursor:pointer;opacity:0}.teacher-mode .cal-guest:hover .cal-guest-drop,.teacher-mode .cal-guest-drop:focus-visible{opacity:1}.teacher-mode .cal-guest-drop:hover{background:var(--soft);color:var(--danger)}.teacher-mode .cal-guests-count{margin:8px 0 0;font-size:11px;color:var(--muted)}.teacher-mode .cal-guests-empty{margin:8px 0 0;font-size:11.5px;line-height:1.45;color:var(--muted)}.teacher-mode .cal-guests.is-waiting,#tchCalendar .cal-guests.is-waiting{min-height:34px}.teacher-mode .cal-rsvp-ask,#tchCalendar .cal-rsvp-ask{margin:9px 0 0;font-size:12.5px;font-weight:650;color:var(--ink)}.teacher-mode .cal-rsvp-ask strong,#tchCalendar .cal-rsvp-ask strong{font-weight:800}.teacher-mode .cal-guests.is-invitation .cal-guest-list,#tchCalendar .cal-guests.is-invitation .cal-guest-list{margin-top:11px}.teacher-mode .cal-rsvp{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;margin-top:8px}.teacher-mode .cal-rsvp-btn{display:flex;align-items:center;justify-content:center;gap:5px;border:1px solid var(--cal-line);border-radius:10px;padding:8px 4px;background:var(--surface);color:var(--muted);font-size:11.5px;font-weight:650;cursor:pointer}.teacher-mode .cal-rsvp-btn i{font-size:14px}.teacher-mode .cal-rsvp-btn:hover{background:var(--cal-hover);color:var(--ink)}.teacher-mode .cal-rsvp-btn.is-on{background:color-mix(in srgb,var(--event, var(--blue)) 14%,var(--surface));border-color:color-mix(in srgb,var(--event, var(--blue)) 55%,transparent);color:color-mix(in srgb,var(--event, var(--blue)) 80%,var(--ink))}.cal-invite-dialog{width:min(430px,calc(100% - 28px));border:0;border-radius:20px;padding:0;background:var(--surface, #fff);color:var(--ink, #152238);box-shadow:0 28px 90px #0f193257}.cal-invite-dialog::backdrop{background:#10213c88;backdrop-filter:blur(4px)}[data-theme=dark] .cal-invite-dialog{--surface: #1c1c1c;--ink: #f5f5f5;--muted: #b3b3b3;--line: #3a3a3a;--soft: #292929;--cal-line: #3a3a3a;box-shadow:0 28px 90px #0009}[data-theme=dark] .teacher-mode .cal-guest.is-accepted .cal-guest-mark{color:#4ade80}[data-theme=dark] .teacher-mode .cal-guest.is-maybe .cal-guest-mark{color:#e0b357}[data-theme=dark] .teacher-mode .cal-guest-face{background:hsl(var(--face-h, 220) 46% 46%)}.cal-cycle-day{display:inline-block;margin-left:6px;padding:1px 6px;border-radius:999px;background:var(--soft);color:#4a6390;font-size:9.5px;font-weight:900;letter-spacing:.04em;vertical-align:middle}.cal-day.today .cal-cycle-day{background:#4778ee29;color:#2d55b5}[data-theme=dark] .cal-cycle-day{background:#1d2c44;color:#9db6e2}.tch-event-dialog{width:min(760px,calc(100vw - 28px));max-height:min(900px,calc(100dvh - 28px));padding:0;border:1px solid var(--theme-line);border-radius:24px;background:var(--theme-surface-strong);color:var(--theme-text);box-shadow:0 28px 90px #12213a4d;overflow:hidden}.tch-event-dialog::backdrop{background:#0a121f94;backdrop-filter:blur(5px)}.tch-event-composer{display:flex;flex-direction:column;max-height:min(900px,calc(100dvh - 28px))}.tch-event-head{display:grid;grid-template-columns:46px minmax(0,1fr) 36px;gap:14px;align-items:center;padding:22px 24px 19px;border-bottom:1px solid var(--theme-line);background:linear-gradient(135deg,color-mix(in srgb,var(--theme-brand) 10%,var(--theme-surface-strong)),var(--theme-surface-strong) 58%)}.tch-event-head-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:15px;background:linear-gradient(135deg,var(--theme-brand),var(--theme-brand-strong));color:#fff;box-shadow:0 9px 22px color-mix(in srgb,var(--theme-brand) 30%,transparent);font-size:22px}.tch-event-kicker{display:block;margin-bottom:3px;color:var(--theme-brand-strong);font-size:10px;font-weight:850;letter-spacing:.13em}.tch-event-head h3{margin:0;font-size:21px;line-height:1.2;letter-spacing:-.025em}.tch-event-head p{margin:4px 0 0;color:var(--theme-muted);font-size:12.5px}.tch-event-close{width:34px;height:34px;display:grid;place-items:center;border:0;border-radius:50%;background:transparent;color:var(--theme-muted);font-size:18px;cursor:pointer;transition:background .15s ease,color .15s ease}.tch-event-close:hover{background:color-mix(in srgb,var(--theme-line) 55%,transparent);color:var(--theme-text)}.tch-event-body{display:flex;flex-direction:column;gap:18px;padding:22px 24px 26px;overflow-y:auto;scrollbar-gutter:stable}.tch-event-choice{min-width:0;margin:0;padding:0;border:0}.tch-event-choice legend,.tch-event-label{display:block;margin:0 0 8px;color:var(--theme-muted);font-size:11px;font-weight:750;letter-spacing:.04em;text-transform:uppercase}.tch-event-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.tch-event-choice-card{position:relative;min-width:0;cursor:pointer}.tch-event-choice-card>input{position:absolute;opacity:0;pointer-events:none}.tch-event-choice-copy{min-height:72px;display:grid;grid-template-columns:34px minmax(0,1fr);grid-template-rows:auto auto;column-gap:11px;align-content:center;padding:12px 14px;border:1px solid var(--theme-line);border-radius:15px;background:color-mix(in srgb,var(--theme-bg) 70%,var(--theme-surface-strong));transition:border-color .15s ease,background .15s ease,box-shadow .15s ease,transform .15s ease}.tch-event-choice-copy>i{grid-row:1 / 3;width:34px;height:34px;display:grid;place-items:center;align-self:center;border-radius:10px;background:color-mix(in srgb,var(--theme-brand) 10%,var(--theme-bg));color:var(--theme-brand-strong);font-size:17px}.tch-event-choice-copy strong{min-width:0;align-self:end;font-size:13.5px;line-height:1.25}.tch-event-choice-copy small{min-width:0;align-self:start;margin-top:3px;color:var(--theme-muted);font-size:11.5px;line-height:1.25}.tch-event-choice-card:hover .tch-event-choice-copy{border-color:color-mix(in srgb,var(--theme-brand) 55%,var(--theme-line));transform:translateY(-1px)}.tch-event-choice-card>input:checked+.tch-event-choice-copy{border-color:var(--theme-brand);background:color-mix(in srgb,var(--theme-brand) 8%,var(--theme-surface-strong));box-shadow:0 0 0 3px color-mix(in srgb,var(--theme-brand) 13%,transparent)}.tch-event-choice-card>input:checked+.tch-event-choice-copy>i{background:var(--theme-brand);color:#fff}.tch-event-choice-card>input:focus-visible+.tch-event-choice-copy{outline:2px solid var(--theme-brand);outline-offset:3px}.tch-event-choice-card>input:disabled+.tch-event-choice-copy{opacity:.48;cursor:not-allowed;transform:none}.tch-event-choice-card.compact .tch-event-choice-copy{min-height:62px}.tch-event-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tch-event-field{min-width:0;display:flex;flex-direction:column;gap:6px;color:var(--theme-text);font-size:12.5px;font-weight:650}.tch-event-field>span{display:flex;align-items:baseline;gap:5px}.tch-event-field>span small{color:var(--theme-muted);font-size:10.5px;font-weight:500}.tch-event-field input,.tch-event-field select,.tch-event-field textarea{width:100%;min-width:0;padding:10px 12px;border:1px solid var(--theme-line);border-radius:11px;outline:none;background:var(--theme-bg);color:var(--theme-text);font:inherit;font-weight:500;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}.tch-event-field input,.tch-event-field select{min-height:42px}.tch-event-field textarea{resize:vertical;min-height:78px;line-height:1.45}.tch-event-field input:focus,.tch-event-field select:focus,.tch-event-field textarea:focus{border-color:var(--theme-brand);background:var(--theme-surface-strong);box-shadow:0 0 0 3px color-mix(in srgb,var(--theme-brand) 12%,transparent)}.tch-event-title-field input{min-height:48px;padding-inline:14px;font-size:15px;font-weight:600}.tch-event-time-card{display:flex;align-items:end;gap:18px;padding:14px;border:1px solid var(--theme-line);border-radius:15px;background:color-mix(in srgb,var(--theme-bg) 72%,var(--theme-surface-strong))}.tch-event-time-fields{flex:1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tch-event-toggle{flex:0 0 190px;min-height:42px;display:flex;align-items:center;gap:10px;cursor:pointer}.tch-event-toggle>input{position:absolute;opacity:0;pointer-events:none}.tch-event-toggle-track{position:relative;flex:none;width:40px;height:23px;border-radius:999px;background:color-mix(in srgb,var(--theme-muted) 35%,transparent);transition:background .15s ease}.tch-event-toggle-track:after{content:"";position:absolute;width:17px;height:17px;top:3px;left:3px;border-radius:50%;background:#fff;box-shadow:0 2px 5px #0003;transition:transform .18s ease}.tch-event-toggle>input:checked+.tch-event-toggle-track{background:var(--theme-brand)}.tch-event-toggle>input:checked+.tch-event-toggle-track:after{transform:translate(17px)}.tch-event-toggle>input:focus-visible+.tch-event-toggle-track{outline:2px solid var(--theme-brand);outline-offset:3px}.tch-event-toggle>span:last-child{display:flex;flex-direction:column;gap:2px}.tch-event-toggle strong{font-size:12.5px}.tch-event-toggle small{color:var(--theme-muted);font-size:10.5px}.tch-event-repeat{border:1px solid var(--theme-line);border-radius:14px;background:color-mix(in srgb,var(--theme-bg) 60%,var(--theme-surface-strong));overflow:hidden}.tch-event-repeat summary{display:flex;align-items:center;justify-content:space-between;padding:13px 14px;list-style:none;color:var(--theme-text);cursor:pointer;font-size:12.5px}.tch-event-repeat summary::-webkit-details-marker{display:none}.tch-event-repeat summary>span{display:flex;align-items:center;gap:9px}.tch-event-repeat summary>span>i{color:var(--theme-brand-strong);font-size:16px}.tch-event-repeat summary>i{color:var(--theme-muted);transition:transform .18s ease}.tch-event-repeat[open] summary>i{transform:rotate(180deg)}.tch-event-repeat-body{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:12px 18px;align-items:end;padding:0 14px 15px;border-top:1px solid var(--theme-line)}.tch-event-repeat-body>.tch-event-label{grid-column:1;margin-top:14px;margin-bottom:-5px}.tch-event-repeat-body .tch-weekdays{grid-column:1}.tch-event-repeat-body #tchEventUntilRow{grid-column:2;grid-row:1 / 3}.tch-event-dialog .tch-weekdays span{height:34px;border-radius:9px;background:var(--theme-surface-strong)}.tch-event-footer{flex:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 24px;border-top:1px solid var(--theme-line);background:color-mix(in srgb,var(--theme-bg) 62%,var(--theme-surface-strong))}.tch-event-footer>span{min-width:0;display:flex;align-items:center;gap:7px;color:var(--theme-muted);font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tch-event-footer>div{display:flex;gap:8px}.tch-event-cancel,.tch-event-save{min-height:40px;padding:0 16px;border-radius:11px;font:inherit;font-size:12.5px;font-weight:750;cursor:pointer}.tch-event-cancel{border:1px solid var(--theme-line);background:var(--theme-surface-strong);color:var(--theme-text)}.tch-event-cancel:hover{background:var(--theme-bg)}.tch-event-save{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;background:linear-gradient(135deg,var(--theme-brand),var(--theme-brand-strong));color:#fff;box-shadow:0 8px 20px color-mix(in srgb,var(--theme-brand) 25%,transparent)}.tch-event-save:hover{filter:brightness(.97);transform:translateY(-1px)}.tch-event-save:disabled{cursor:wait;opacity:.78;transform:none}@media(max-width:1100px){.cal{grid-template-columns:minmax(0,1fr)}.cal-rail{display:none}}@media(max-width:820px){#tchCalendar{height:calc(100dvh - 58px);padding:14px 14px 18px}.cal-bar{flex-wrap:wrap}.cal-bar h2{font-size:15px}.cal-time-body{min-height:min(64vh,560px)}.cal-month{grid-auto-rows:minmax(74px,1fr)}.tch-event-dialog{width:min(100vw - 16px,760px);max-height:calc(100dvh - 16px);border-radius:19px}.tch-event-composer{max-height:calc(100dvh - 16px)}.tch-event-head{grid-template-columns:40px minmax(0,1fr) 32px;gap:11px;padding:17px 16px 15px}.tch-event-head-icon{width:40px;height:40px;border-radius:13px}.tch-event-head p{display:none}.tch-event-body{gap:16px;padding:17px 16px 20px}.tch-event-grid,.tch-event-time-fields{grid-template-columns:minmax(0,1fr)}.tch-event-time-card{align-items:stretch;flex-direction:column}.tch-event-toggle{flex-basis:auto}.tch-event-repeat-body{grid-template-columns:minmax(0,1fr)}.tch-event-repeat-body #tchEventUntilRow{grid-column:1;grid-row:auto}.tch-event-footer{align-items:stretch;flex-direction:column;padding:13px 16px}.tch-event-footer>div{justify-content:flex-end}}@media(max-width:520px){.tch-event-choice-grid{grid-template-columns:minmax(0,1fr)}.tch-event-choice-copy{min-height:61px}.tch-event-footer>span{display:none}.tch-event-footer>div,.tch-event-cancel,.tch-event-save{flex:1}}.cal-feed-row.paused{display:block;padding:8px 10px;opacity:1}.cal-feed-paused{display:flex;flex-wrap:wrap;align-items:center;gap:6px}.cal-feed-paused .name{flex:1;min-width:0;font-size:12.5px;font-weight:550;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cal-feed-paused .cal-feed-app{opacity:.55}.cal-feed-paused small{flex-basis:100%;font-size:11px;line-height:1.4;color:var(--muted)}.cal-feed-resume{margin-top:2px;font:inherit;font-size:11.5px;font-weight:600;padding:3px 9px;border-radius:999px;border:1px solid var(--line);background:none;color:var(--ink);cursor:pointer}.cal-feed-resume:hover:not(:disabled){border-color:var(--ink)}.cal-feed-resume:disabled{opacity:.6;cursor:default}