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var(--danger)}.toast.info{border-left:3px solid var(--brand)}@keyframes slide{0%{opacity:0;transform:translate(12px)}to{opacity:1;transform:none}}.matrix-toolbar{flex-wrap:wrap;align-items:flex-end;gap:10px;margin-bottom:14px;display:flex}.seg{border:1px solid var(--line-2);border-radius:var(--radius-sm);background:var(--surface-2);padding:2px;display:inline-flex}.seg button{height:26px;color:var(--ink-3);cursor:pointer;background:0 0;border:none;border-radius:5px;padding:0 11px;font-size:12.5px;font-weight:550}.seg button.active{background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}.matrix-scroll{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow-x:auto}table.matrix{border-collapse:separate;border-spacing:0;width:100%;min-width:860px}table.matrix th,table.matrix td{border-bottom:1px solid var(--line)}table.matrix thead th{z-index:3;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);background:var(--surface-2);border-bottom:1px solid var(--line-2);padding:10px 8px;font-size:11px;font-weight:600;position:sticky;top:0}table.matrix th.slot-col{z-index:4;text-align:left;width:92px;min-width:92px;padding-left:14px;position:sticky;left:0}table.matrix td.slot-col{z-index:2;background:var(--surface-2);border-right:1px solid var(--line);font-variant-numeric:tabular-nums;width:92px;min-width:92px;padding:8px 10px 8px 14px;position:sticky;left:0}.slot-time{font-size:12.5px;font-weight:600}.slot-name{color:var(--ink-3);font-size:11px}table.matrix td.cell{vertical-align:top;border-right:1px solid var(--line);padding:4px}table.matrix td.cell:last-child{border-right:none}tr.break td{background:var(--surface-3);text-align:center;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);padding:7px 10px;font-size:11px;font-weight:600}.cell-btn{border-radius:var(--radius-sm);text-align:left;cursor:pointer;background:0 0;border:1px dashed #0000;width:100%;min-height:62px;padding:7px 8px;transition:background .1s,border-color .1s;display:block}.cell-btn.empty{border-color:var(--line);color:var(--ink-4)}.cell-btn.empty:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}.cell-btn.empty .plus{opacity:.6;font-size:15px}.cell-btn.filled{border-style:solid;border-color:#0000}.cell-btn.filled:hover{filter:brightness(.97)}.cell-btn.filled.dragging{opacity:.4}.cell-btn.conflict{outline:2px solid var(--danger);outline-offset:-1px}.cell-subject{font-size:12.5px;font-weight:650;line-height:1.25}.cell-line{opacity:.82;white-space:nowrap;text-overflow:ellipsis;font-size:11px;line-height:1.35;overflow:hidden}.cell-drop{border-color:var(--brand)!important;background:var(--brand-soft)!important}.legend{flex-wrap:wrap;gap:6px;margin-top:14px;display:flex}.legend-item{border:1px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:999px;align-items:center;gap:6px;padding:3px 9px 3px 6px;font-size:11.5px;display:inline-flex}.legend-dot{border-radius:3px;flex:none;width:9px;height:9px}.login{background:radial-gradient(900px 500px at 15% -10%, color-mix(in srgb, var(--brand) 12%, transparent), transparent), var(--bg);place-items:center;min-height:100vh;padding:24px;display:grid}.login-card{background:var(--surface);border:1px solid var(--line);width:100%;max-width:384px;box-shadow:var(--shadow-lg);border-radius:14px;padding:28px}.login-brand{align-items:center;gap:11px;margin-bottom:22px;display:flex}.login-title{font-size:18px}.login-sub{color:var(--ink-3);margin-top:3px;font-size:13px}.login-form{flex-direction:column;gap:14px;margin-top:22px;display:flex}.login-hint{border-top:1px solid var(--line);color:var(--ink-3);margin-top:18px;padding-top:16px;font-size:12px;line-height:1.7}.login-hint code{font-family:var(--mono);background:var(--surface-3);border-radius:4px;padding:1px 5px;font-size:11.5px}.bar{background:var(--surface-3);border-radius:999px;height:6px;overflow:hidden}.bar>span{background:var(--brand);border-radius:999px;height:100%;transition:width .3s;display:block}.rows{flex-direction:column;gap:14px;display:flex}.cols{flex-wrap:wrap;gap:14px;display:flex}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px;display:grid}.muted{color:var(--ink-3)}.small{font-size:12.5px}.mono{font-family:var(--mono);font-size:12.5px}.right{text-align:right}.nowrap{white-space:nowrap}.dot{border-radius:3px;width:9px;height:9px;display:inline-block}.skeleton{background:linear-gradient(90deg, var(--surface-2), var(--surface-3), var(--surface-2));background-size:200% 100%;border-radius:5px;height:12px;animation:1.2s infinite shimmer}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.center-state{min-height:60vh;color:var(--ink-3);place-items:center;display:grid}@media (width<=900px){.app{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--line);flex-direction:row;align-items:center;gap:4px;height:auto;padding:10px;position:static;overflow-x:auto}.brand{padding:0 10px 0 4px}.nav-label,.sidebar-footer{display:none}.nav-item{white-space:nowrap}.content{padding:16px}}.topbar{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.school-scope{flex-direction:column;gap:4px;min-width:260px;max-width:380px;display:flex}.school-scope-label{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);font-size:11px;font-weight:600}.school-scope select{font:inherit;color:var(--ink-1);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:7px 10px;font-size:13px}.school-scope select:focus-visible{outline:2px solid var(--brand);outline-offset:1px}.school-scope-hint{color:var(--ink-3);font-size:11.5px;line-height:1.45}@media (width<=900px){.topbar{flex-direction:column}.school-scope{width:100%;min-width:0;max-width:none}}.login-welcome{color:var(--ink-3);margin:14px 0 0;font-size:12.5px;line-height:1.6}.login-demo{color:var(--ink-3);background:var(--surface-2);border:1px dashed var(--line);border-radius:8px;margin:14px 0 0;padding:9px 11px;font-size:11.5px;line-height:1.6}