:root{--bg:#f5f6f8;--card:#fff;--line:#dfe3e8;--text:#1a1d21;--muted:#6b7280;--accent:#1f5fa9;--danger:#b42318;--radius:10px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Malgun Gothic,Segoe UI,sans-serif;font-size:16px;line-height:1.5}.page{max-width:560px;margin:0 auto;padding:16px}.topbar{background:var(--card);border-bottom:1px solid var(--line);z-index:10;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;display:flex;position:sticky;top:0}.topbar .who{color:var(--muted);font-size:14px}.topbar .who strong{color:var(--text)}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;padding:16px}.class-card{text-align:left;cursor:pointer;width:100%;display:block}.class-card:active{background:#eef2f7}.class-card .name{font-size:17px;font-weight:600}.class-card .meta{color:var(--muted);margin-top:4px;font-size:14px}.class-card .code{color:var(--muted);font-family:ui-monospace,monospace;font-size:12px}label{color:var(--muted);margin-bottom:6px;font-size:14px;display:block}input{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);width:100%;color:var(--text);padding:12px;font-size:16px}input:focus{outline:2px solid var(--accent);outline-offset:-1px}button{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);color:var(--text);cursor:pointer;min-height:48px;padding:12px 16px;font-family:inherit;font-size:16px}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;width:100%;font-weight:600}button.primary:disabled{opacity:.55;cursor:default}button.link{color:var(--muted);background:0 0;border:none;min-height:auto;padding:4px;text-decoration:underline}.field{margin-bottom:14px}.error{color:var(--danger);border-radius:var(--radius);background:#fdf0ef;border:1px solid #f3c9c4;margin-bottom:14px;padding:12px;font-size:14px}.notice{color:#12447c;border-radius:var(--radius);background:#eef4fb;border:1px solid #c9dcf3;margin-bottom:14px;padding:12px;font-size:14px}.empty{text-align:center;color:var(--muted);padding:40px 20px}.muted{color:var(--muted);font-size:14px}h1{margin:0 0 4px;font-size:22px}h2{margin:24px 0 12px;font-size:18px}.sub{color:var(--muted);margin:0 0 20px;font-size:14px}.center-screen{justify-content:center;align-items:center;min-height:100%;padding:20px;display:flex}.center-screen .box{width:100%;max-width:380px}pre.code{color:#e6e6e6;border-radius:var(--radius);white-space:pre-wrap;word-break:break-all;background:#1a1d21;padding:12px;font-size:12px;overflow-x:auto}.tabbar{background:var(--card);border-bottom:1px solid var(--line);z-index:9;display:flex;position:sticky;top:53px}.tabbar .tab{color:var(--muted);background:0 0;border:none;border-bottom:2px solid #0000;border-radius:0;flex:1;padding:14px 4px;font-size:15px}.tabbar .tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:700}.list-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.list-row .name{font-size:16px;font-weight:600}.list-row .meta{color:var(--muted);margin-top:2px;font-size:14px}.badge{background:var(--accent);color:#fff;vertical-align:middle;border-radius:999px;margin-left:8px;padding:2px 8px;font-size:12px;font-weight:600;display:inline-block}.row2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.btn-row{flex-wrap:wrap;gap:8px;display:flex}.btn-row button{flex:none}.btn-row button.primary{flex:1}button.danger{color:var(--danger);border-color:#f3c9c4}.confirm-row{align-items:center;gap:8px;display:inline-flex}.confirm-ask{color:var(--danger);white-space:nowrap;font-size:14px}select{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);width:100%;color:var(--text);padding:12px;font-size:16px}select:focus{outline:2px solid var(--accent);outline-offset:-1px}.hint{color:var(--muted);margin:6px 0 0;font-size:13px}button.choice{flex:1}button.choice.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.chips{flex-wrap:wrap;gap:6px;margin-bottom:12px;display:flex}.chip{border-radius:999px;min-height:auto;padding:7px 14px;font-size:14px}.chip.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.badge.gray{background:var(--muted)}.card.dim{opacity:.6}.chevron{color:var(--muted);font-size:22px;line-height:1}input:disabled{color:var(--muted);background:#eef0f3}.tags{flex-wrap:wrap;gap:6px;margin-bottom:12px;display:flex}.tag{background:var(--accent);border-color:var(--accent);color:#fff;border-radius:999px;min-height:auto;padding:7px 12px;font-size:14px}.tag .x{opacity:.8;margin-left:2px}.pick{text-align:left;justify-content:space-between;align-items:center;gap:12px;width:100%;margin-bottom:6px;display:flex}.pick.on{border-color:var(--accent);background:#eef4fb;font-weight:600}.pick.on .muted{color:var(--accent)}.guardian{border-top:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:12px;padding:12px 0;display:flex}.guardian .name{font-size:16px;font-weight:600}.guardian .meta{color:var(--muted);margin-top:2px;font-size:14px}.send{margin-top:4px;font-size:13px;font-weight:600}.send.ok{color:#146c43}.send.no{color:var(--danger)}.summary{flex-wrap:wrap;gap:16px;margin-bottom:12px;font-size:15px;display:flex}.summary b{font-size:20px}.summary .bad b{color:var(--danger)}.badrow{border-top:1px solid var(--line);color:var(--danger);padding:8px 0;font-size:14px}.table-scroll{-webkit-overflow-scrolling:touch;overflow-x:auto}table.preview{border-collapse:collapse;white-space:nowrap;width:100%;font-size:13px}table.preview th,table.preview td{border-bottom:1px solid var(--line);text-align:left;padding:7px 10px}table.preview th{color:var(--muted);font-weight:600}table.preview tr.bad td{color:var(--danger);background:#fdf0ef}table.preview tr.dim td{color:var(--muted)}input[type=file]{border:none;padding:0;font-size:14px}.teacher{flex-direction:column;min-height:100vh;display:flex}.teacher-body{flex:1;padding-bottom:8px}.teacher-foot{z-index:20;background:var(--card);padding-bottom:env(safe-area-inset-bottom);position:sticky;bottom:0}.tbar{background:var(--card);border-top:1px solid var(--line);grid-template-columns:1fr 1fr 1fr;display:grid}.tcell{border:none;border-right:1px solid var(--line);text-align:left;background:0 0;border-radius:0;flex-direction:column;align-items:flex-start;gap:2px;min-height:60px;padding:10px 12px;display:flex;overflow:hidden}.tcell:last-child{border-right:none}.tcell .tlabel{color:var(--muted);font-size:11px}.tcell .tvalue{color:var(--text);text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-size:14px;overflow:hidden}.tcell.on{background:#eef4fb}.tcell.on .tlabel,.tcell.on .tvalue{color:var(--accent);font-weight:700}.tcell.off{opacity:.4}.movebar{background:var(--card);border-top:1px solid var(--line);grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;padding:8px 10px;display:grid}.movebar button{text-overflow:ellipsis;white-space:nowrap;min-height:44px;padding:8px 10px;font-size:15px;overflow:hidden}.movepos{color:var(--muted);padding:0 4px;font-size:13px}.student-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.student-head h1{margin:0}.season-line{color:var(--muted);align-items:center;gap:10px;margin:18px 0 10px;font-size:13px;display:flex}.season-line:before,.season-line:after{content:"";background:var(--line);flex:1;height:1px}.asg{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px;padding:12px}.asg-head{align-items:baseline;gap:8px;margin-bottom:10px;display:flex}.seq{text-align:center;min-width:24px;height:24px;color:var(--muted);background:#eef0f3;border-radius:6px;flex:none;font-size:12px;font-weight:700;line-height:24px}.asg-title{flex:1;font-size:16px;font-weight:600}.due{color:var(--muted);flex:none;font-size:13px}.grid6{grid-template-columns:1fr 1fr 1fr;gap:6px;display:grid}.sbtn{-webkit-tap-highlight-color:transparent;min-height:52px;padding:8px 4px;font-size:15px}.sbtn.on{color:#fff;border-color:#0000;font-weight:700}.sbtn.on.done{background:#146c43}.sbtn.on.ungraded{background:#b8860b}.sbtn.on.partial{background:#1f5fa9}.sbtn.on.missing{background:#b42318}.sbtn.on.pending{background:#6b7280}.sbtn.on.absent{background:#4b5563}.order-head{color:var(--muted);justify-content:space-between;align-items:center;margin:18px 0 8px;font-size:14px;display:flex}.pick.ordered{cursor:default}.ord{text-align:center;background:var(--accent);color:#fff;border-radius:6px;min-width:22px;height:22px;margin-right:8px;font-size:12px;font-weight:700;line-height:22px;display:inline-block}.pick.on .ord{color:var(--accent);background:#fff}button.arrow{min-width:46px;min-height:40px;padding:4px 10px;font-size:17px}input[type=date]{appearance:none;text-align:left;width:100%;min-width:0;max-width:100%;display:block}input[type=date]::-webkit-date-and-time-value{text-align:left;margin:0}input[type=date]::-webkit-calendar-picker-indicator{margin-left:4px}.row2>*,.row2 input{min-width:0}input:not([type=file]),select{min-height:48px;padding-top:11px;padding-bottom:11px;line-height:24px}input[type=date]::-webkit-datetime-edit{min-height:24px;padding:0;line-height:24px;display:block}input[type=date]::-webkit-datetime-edit-fields-wrapper{padding:0}input[type=date]::-webkit-datetime-edit-text{padding:0}input[type=date]::-webkit-datetime-edit-year-field{padding:0}input[type=date]::-webkit-datetime-edit-month-field{padding:0}input[type=date]::-webkit-datetime-edit-day-field{padding:0}.syncbar{z-index:30;color:#7a5c00;background:#fff8e6;border-bottom:1px solid #f0dfae;justify-content:center;align-items:center;gap:6px;padding:8px 12px;font-size:14px;font-weight:600;display:flex;position:sticky;top:0}.syncbar.off{color:#374151;border-bottom-color:var(--line);background:#f3f4f6}.syncbar button.link{color:inherit;font-weight:700}.big-stat{text-align:center;padding:22px 16px}.big-stat .label{color:var(--muted);font-size:14px}.big-stat .value{margin:6px 0;font-size:46px;font-weight:800;line-height:1.1}.big-stat .detail{color:var(--muted);font-size:14px}.big-stat .judge{border-top:1px solid var(--line);margin-top:10px;padding-top:10px;font-size:14px}.big-stat.ok .value{color:#146c43}.big-stat.warn .value{color:#b8860b}.big-stat.stop .value{color:var(--danger)}.big-stat.stop{background:#fdf6f5;border-color:#f3c9c4}.big-stat.warn{background:#fffdf6;border-color:#f0dfae}.stat-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.card.stat{text-align:center;padding:16px 12px}.card.stat .label{color:var(--muted);font-size:13px}.card.stat .value{margin:4px 0 2px;font-size:26px;font-weight:700}.card.stat .detail{color:var(--muted);font-size:13px}.tally{flex-wrap:wrap;gap:6px 14px;font-size:14px;display:flex}.tally b{margin-right:3px;font-size:17px}.tally .dimmed{color:var(--muted)}.rate{text-align:right;flex:none;font-size:20px;font-weight:700}.rate .rate-label{color:var(--muted);font-size:11px;font-weight:400;display:block}.rate.ok{color:#146c43}.rate.warn{color:#b8860b}.rate.stop{color:var(--danger)}.bars{margin-top:10px}.bar-row{grid-template-columns:58px 1fr 34px 42px;align-items:center;gap:8px;padding:4px 0;font-size:14px;display:grid}.bar-name{color:var(--muted)}.bar-track{background:#eef0f3;border-radius:999px;height:10px;overflow:hidden}.bar-fill{background:var(--muted);border-radius:999px;height:100%;display:block}.bar-num{text-align:right;font-weight:700}.bar-pct{text-align:right;color:var(--muted)}.bar-row.done .bar-fill{background:#146c43}.bar-row.ungraded .bar-fill{background:#b8860b}.bar-row.partial .bar-fill{background:#1f5fa9}.bar-row.missing .bar-fill{background:#b42318}.bar-row.pending .bar-fill{background:#9ca3af}.bar-row.absent .bar-fill{background:#6b7280}.bar-row.blank .bar-fill{background:#d1d5db}.bar-row.blank .bar-name,.bar-row.blank .bar-num{color:var(--muted)}