:root{--ink:#17212f;--muted:#738092;--line:#e8edf2;--paper:#f6f8fb;--white:#fff;--blue:#316cdb;--blue-soft:#edf4ff;--shadow:0 10px 34px rgba(27,45,70,.055);font-family:system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;text-rendering:optimizeLegibility}
*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--paper)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.topbar{height:74px;padding:0 max(28px,calc((100vw - 1120px)/2));display:flex;align-items:center;gap:42px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:16px;white-space:nowrap}.brand-mark,.login-icon{display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,#5c8ff0,#316cdb);box-shadow:0 7px 14px rgba(49,108,219,.2);font-size:16px;font-weight:700;width:38px;height:38px;border-radius:12px}.brand small{display:block;font-size:10px;font-weight:500;color:#91a0b0;letter-spacing:.03em;margin-top:2px}.topbar nav{display:flex;align-items:center;gap:8px;flex:1}.topbar nav a{padding:9px 13px;border-radius:9px;font-size:13px;color:#6f7d8e;transition:.15s}.topbar nav a:hover,.topbar nav a.active{color:var(--blue);background:var(--blue-soft)}.logout-form{margin-left:auto}.text-button{border:0;background:none;color:#7c8998;padding:8px 10px;cursor:pointer;font-size:13px}.text-button:hover{color:var(--blue)}.page-shell{max-width:1120px;margin:0 auto;padding:40px 26px 30px}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:25px}.page-heading h1{margin:4px 0 5px;font-size:29px;letter-spacing:-.035em}.eyebrow{margin:0;color:#92a1b3;font-size:10px;font-weight:700;letter-spacing:.16em}.muted{color:var(--muted);font-size:13px;margin:0}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:40px;padding:0 16px;border:1px solid transparent;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;transition:transform .12s,box-shadow .12s,background .12s}.button:hover{transform:translateY(-1px)}.primary{color:#fff;background:var(--blue);box-shadow:0 5px 13px rgba(49,108,219,.17)}.primary:hover{background:#245fc8}.secondary{color:#425165;background:#fff;border-color:var(--line)}.secondary:hover{border-color:#cbd8e6;background:#fbfcfe}.filter-row{display:flex;align-items:center;justify-content:space-between;margin:20px 0 17px}.month-filter{display:flex;align-items:center;gap:10px}.month-filter label{font-size:12px;color:#718094}.month-filter input{height:39px;padding:0 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:#334155}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}.stat-card{position:relative;min-height:142px;padding:18px 19px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);overflow:hidden}.stat-card:after{content:'';position:absolute;right:-21px;top:-28px;width:90px;height:90px;border-radius:50%;background:var(--tint);opacity:.65}.accent-blue{--tint:#e5efff;--accent:#3472dc}.accent-violet{--tint:#f0eaff;--accent:#7955ca}.accent-amber{--tint:#fff1da;--accent:#cb8730}.accent-rose{--tint:#ffe8e8;--accent:#c86168}.stat-label{display:block;font-size:12px;color:#687789}.stat-card strong{display:block;margin-top:13px;font-size:31px;font-weight:700;letter-spacing:-.04em;color:var(--accent)}.stat-card strong small{font-size:12px;font-weight:500;letter-spacing:0;margin-left:5px}.stat-foot{display:block;margin-top:5px;color:#99a5b3;font-size:11px}.panel{background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);padding:21px 22px;margin:17px 0}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.section-heading h2{font-size:16px;margin:0 0 4px;letter-spacing:-.02em}.section-heading p{font-size:11px;color:#93a0af;margin:0}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;white-space:nowrap}th{text-align:left;color:#95a2b2;font-size:11px;font-weight:600;padding:11px 12px;border-bottom:1px solid var(--line)}td{padding:12px;border-bottom:1px solid #f0f3f6;font-size:12px;color:#4c5a6a}tbody tr:last-child td{border-bottom:0}.person-cell{display:flex;align-items:center;gap:9px;color:#263447;font-weight:600}.avatar{width:29px;height:29px;display:inline-grid;place-items:center;flex:none;border-radius:9px;font-size:12px;font-weight:700}.teacher-avatar{background:#f0eaff;color:#7955ca}.student-avatar{background:#e8f4ef;color:#32856b}.hours-cell{font-weight:700;color:#283f5b}.tag{display:inline-flex;padding:4px 8px;border-radius:6px;background:#f1f5fa;color:#64758a;font-size:10px}.status{display:inline-flex;align-items:center;padding:4px 8px;border-radius:6px;font-size:10px}.status-taught{color:#258064;background:#e9f7f1}.status-student_leave{color:#a66e1e;background:#fff4df}.status-teacher_leave{color:#b34f5d;background:#ffedef}.row-link,.subtle-link{font-size:12px;color:var(--blue);font-weight:600}.row-link:hover,.subtle-link:hover{text-decoration:underline}.empty-state{min-height:112px;display:flex;align-items:center;justify-content:center;gap:10px;color:#8996a6;font-size:13px}.empty-state a{color:var(--blue);font-weight:600}.compact-heading{margin-bottom:18px}.form-panel{padding:25px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 20px}.form-grid label,.stack-form label{display:flex;flex-direction:column;gap:8px;color:#59687a;font-size:12px;font-weight:600}.form-grid input,.form-grid select,.form-grid textarea,.stack-form input,.inline-add input{width:100%;min-height:42px;padding:10px 12px;border:1px solid #dfe6ee;border-radius:9px;background:#fff;color:#263447;outline:0;transition:border .15s,box-shadow .15s}.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus,.stack-form input:focus,.inline-add input:focus{border-color:#7ba4ed;box-shadow:0 0 0 3px rgba(49,108,219,.1)}.form-grid textarea{resize:vertical}.form-grid label small{font-size:10px;color:#9aa6b4;font-weight:400;margin-top:-4px}.wide-field{grid-column:1/-1}.form-actions{display:flex;align-items:center;gap:9px;margin-top:23px;padding-top:19px;border-top:1px solid #edf0f4}.delete-form{display:flex;justify-content:flex-end;margin:0 5px}.danger-text{color:#c45e66}.login-wrap{display:grid;place-items:center;min-height:calc(100vh - 190px)}.login-card{width:min(100%,400px);padding:35px;background:#fff;border:1px solid var(--line);border-radius:19px;box-shadow:0 20px 60px rgba(27,45,70,.09);text-align:center}.login-icon{width:48px;height:48px;margin:0 auto 18px;border-radius:15px}.login-card h1{font-size:25px;margin:8px 0}.login-card .muted{margin-bottom:25px}.stack-form{text-align:left;display:grid;gap:17px}.stack-form input{margin-top:1px}.full{width:100%;margin-top:3px}.people-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.people-panel{margin:0;padding:20px}.inline-add{display:flex;gap:8px;margin:15px 0 4px}.inline-add input{min-width:0;height:40px}.inline-add .button{height:40px;min-height:40px}.people-list{list-style:none;padding:0;margin:14px 0 0}.people-list li{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid #f0f3f6}.people-list li:last-child{border-bottom:0}.person-name{flex:1;font-size:13px;font-weight:600}.person-name small{display:block;margin-top:2px;color:#a5afb9;font-size:10px;font-weight:400}.inactive-name{color:#9da8b4}.small-empty{padding:16px 0;color:#9ba7b4;font-size:12px}.flash-stack{display:grid;gap:8px;margin-bottom:17px}.flash{padding:11px 14px;border-radius:9px;font-size:12px}.flash.success{background:#eaf7f1;color:#26795f}.flash.error{background:#fff0f0;color:#aa4851}footer{text-align:center;color:#a4afbc;font-size:10px;padding:28px 0 5px}footer span{padding:0 5px;color:#d4dbe3}
@media(max-width:800px){.topbar{height:auto;min-height:66px;flex-wrap:wrap;padding:12px 18px;gap:10px}.topbar nav{order:3;flex-basis:100%;margin-left:47px}.topbar nav a{padding:7px 10px}.logout-form{margin-left:auto}.page-shell{padding:28px 17px}.page-heading h1{font-size:25px}.stats-grid{grid-template-columns:repeat(2,1fr)}.stat-card{min-height:126px;padding:15px}.stat-card strong{font-size:27px}.people-grid{grid-template-columns:1fr}.panel{padding:17px}.form-panel{padding:19px}.filter-row{align-items:flex-start;gap:10px;flex-wrap:wrap}.month-filter{flex-wrap:wrap}.table-wrap{margin:0 -5px}.wide-field{grid-column:auto}}
@media(max-width:480px){.stats-grid{gap:9px}.stat-card{min-height:117px;padding:13px}.stat-label{font-size:11px}.stat-card strong{font-size:23px}.stat-foot{font-size:10px}.form-grid{grid-template-columns:1fr;gap:14px}.wide-field{grid-column:1}.page-heading{align-items:flex-start}.page-heading>.button{padding:0 11px;white-space:nowrap}.month-filter{width:100%}.month-filter input{flex:1}.filter-row>.button{margin-left:auto}.login-card{padding:28px 23px}}
.signed-in{font-size:12px;color:#708095;white-space:nowrap}.heading-actions{display:flex;gap:9px;flex-wrap:wrap}.money-value{font-size:25px!important;letter-spacing:-.02em!important}.pay-cell{font-weight:700;color:#315c9c}.status-approved{color:#258064;background:#e9f7f1}.status-pending{color:#a66e1e;background:#fff4df}.status-rejected{color:#b34f5d;background:#ffedef}.review-actions{display:flex;gap:5px}.mini-button{border:0;border-radius:6px;padding:6px 8px;font-size:10px;font-weight:700;cursor:pointer}.mini-button.approve{background:#e8f5ee;color:#26795f}.mini-button.reject{background:#fff0f0;color:#aa4851}.review-note{display:block;margin-top:4px;color:#a66e1e;font-size:10px}.review-explainer{margin-top:19px;padding:12px 14px;border-radius:9px;background:#f2f6fc;color:#657891;font-size:12px}.child-chips{display:flex;flex-wrap:wrap;gap:10px}.child-chip{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:10px;padding:7px 11px;color:#3d4c5f;font-size:12px}.subsection-title{margin:22px 0 7px;padding-top:16px;border-top:1px solid #edf0f4;font-size:13px;color:#526175}.teacher-row{border-bottom:0!important;padding-bottom:3px!important}.reset-row{display:block!important;padding:0 0 10px 38px!important;border-bottom:1px solid #f0f3f6!important}.reset-row .inline-add{margin:0}.reset-row .inline-add input{font-size:11px}.teacher-checks{border:1px solid #e3e9f0;border-radius:10px;padding:10px 12px;display:flex;gap:9px;flex-wrap:wrap}.teacher-checks legend{padding:0 4px;color:#59687a;font-size:12px;font-weight:600}.teacher-checks label{display:flex;flex-direction:row;align-items:center;gap:5px;color:#526175;font-size:12px;font-weight:400}.teacher-checks input{width:auto;min-height:auto;accent-color:var(--blue)}.student-admin-list{list-style:none;padding:0;margin:8px 0 0}.student-admin-list>li{padding:13px 0;border-bottom:1px solid #f0f3f6}.student-admin-list>li:last-child{border-bottom:0}.student-admin-list .person-cell{margin-bottom:8px}.student-admin-list .person-cell small{display:block;color:#a5afb9;font-size:10px;font-weight:400}.assign-form{display:grid;gap:7px;margin-left:38px}.assign-form select{min-height:70px;border:1px solid #dfe6ee;border-radius:8px;padding:6px;background:#fff;color:#425165;font-size:12px}.assign-form .button{justify-self:start}.account-reset{margin-left:auto}.login-hint{margin:17px 0 0;color:#99a5b3;font-size:10px}.login-hint b{color:#6b7a8d}.password-panel{max-width:720px}
.record-kind{display:flex;align-items:center;gap:10px;margin-bottom:18px;padding:12px 14px;border-radius:9px;background:#f2f6fc;color:#657891;font-size:12px}.record-kind .tag{background:#e3edfb;color:#315eaa;white-space:nowrap}
.grid-panel{padding:16px}.grid-wrap{max-height:72vh;overflow:auto}.attendance-grid{width:max-content;min-width:100%}.attendance-grid th,.attendance-grid td{min-width:88px;text-align:center}.attendance-grid .date-column,.attendance-grid .date-cell{position:sticky;left:0;z-index:2;min-width:84px;background:#fff}.attendance-grid .date-cell{font-weight:700;color:#425165}.attendance-grid .date-cell small{display:block;color:#9aa6b4;font-size:10px;font-weight:400}.attendance-grid thead th{position:sticky;top:0;z-index:3;background:#fff}.attendance-grid thead .date-column{z-index:4}.attendance-grid select,.mark-table select{min-height:36px;padding:5px 8px;border:1px solid #dfe6ee;border-radius:8px;background:#fff;color:#334155}.weekend-cell{background:#f7f9fc!important;color:#929eac!important;text-align:center!important;font-size:11px!important}.mark-table{width:min(100%,620px)}.mark-table select{width:min(100%,260px)}.compact-fields{grid-template-columns:repeat(2,minmax(0,1fr));max-width:650px}
@media(max-width:800px){.signed-in{display:none}.heading-actions{width:100%}.heading-actions .button{flex:1}.review-actions{flex-wrap:wrap}.reset-row{padding-left:0!important}.reset-row .inline-add{flex-wrap:wrap}.student-admin-list>li{padding:12px 0}}
.brand-logo{display:block;width:40px;height:40px;flex:none;object-fit:contain;border-radius:0;background:transparent;box-shadow:none}
.login-icon{display:block;object-fit:contain;border-radius:0;background:transparent;box-shadow:none;padding:0}
@media(max-width:640px){
  .topbar{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"brand logout" "nav nav";align-items:center;gap:8px 10px;min-height:0;padding:9px 12px}
  .brand{grid-area:brand;min-width:0;gap:8px;font-size:13px;line-height:1.25}
  .brand-logo{width:36px;height:36px}
  .brand small{font-size:9px}
  .topbar nav{grid-area:nav;display:flex;flex-basis:auto;width:100%;min-width:0;gap:4px;margin:0;padding:2px 0 1px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none}
  .topbar nav::-webkit-scrollbar{display:none}
  .topbar nav a{flex:none;padding:8px 10px;font-size:12px;white-space:nowrap}
  .logout-form{grid-area:logout;margin:0}
  .text-button{padding:8px;font-size:12px}
  .page-shell{padding:20px 12px 22px}
  .page-heading{display:flex;flex-direction:column;align-items:stretch;gap:12px;margin-bottom:17px}
  .page-heading h1{font-size:23px;line-height:1.25}
  .page-heading .muted{line-height:1.55}
  .heading-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:100%}
  .heading-actions .button{min-width:0;min-height:44px;padding:0 8px;font-size:12px}
  .heading-actions .subtle-link{grid-column:1/-1;padding:5px 2px}
  .filter-row{align-items:stretch;margin:14px 0;gap:9px}
  .month-filter{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:7px;width:100%}
  .month-filter input{min-width:0;width:100%;height:42px}
  .month-filter .button,.filter-row>.button{min-height:42px;padding:0 11px}
  .stats-grid{gap:9px;margin-bottom:14px}
  .stat-card{min-height:112px;padding:12px;border-radius:12px}
  .stat-label{font-size:11px;line-height:1.35}
  .stat-card strong{margin-top:10px;font-size:23px}
  .stat-foot{font-size:10px;line-height:1.4}
  .panel{padding:14px 12px;margin:12px 0;border-radius:12px}
  .section-heading{align-items:flex-start;gap:10px;flex-wrap:wrap}
  .section-heading h2{font-size:15px;line-height:1.4}
  .section-heading>.button{min-height:40px;padding:0 11px;font-size:12px}
  .table-wrap{max-width:100%;margin:0 -3px;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .table-wrap table{min-width:max-content}
  th,td{padding:10px 9px}
  .form-panel{padding:15px 12px}
  .form-grid,.compact-fields{grid-template-columns:minmax(0,1fr);gap:13px}
  .form-grid label,.stack-form label{font-size:13px}
  .form-grid input,.form-grid select,.stack-form input,.inline-add input{min-height:46px;font-size:16px}
  .form-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:17px;padding-top:14px}
  .form-actions .button{min-height:44px;padding:0 9px}
  .record-kind{align-items:flex-start;gap:8px;padding:10px;font-size:11px;line-height:1.55}
  .grid-panel{padding:12px 9px}
  .grid-wrap{max-height:66vh;max-height:66dvh;margin:0 -4px;overflow:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
  .attendance-grid th,.attendance-grid td{min-width:66px;padding:7px 5px}
  .attendance-grid .date-column,.attendance-grid .date-cell{min-width:65px}
  .attendance-grid select{width:48px;min-height:44px;padding:5px 4px;font-size:16px}
  .attendance-grid thead th{top:0}
  .weekend-cell{white-space:normal;min-width:180px!important;line-height:1.45}
  .mark-table{width:100%;min-width:0!important}
  .mark-table td:first-child{white-space:normal}
  .mark-table select{width:100%;min-height:44px;font-size:14px}
  .people-grid{gap:12px}
  .people-panel{padding:14px 12px}
  .inline-add{align-items:stretch}
  .inline-add .button{min-height:44px;height:auto;white-space:nowrap}
  .login-wrap{min-height:calc(100dvh - 150px);padding:10px 0}
  .login-card{padding:27px 20px;border-radius:16px}
  .login-card h1{font-size:22px}
  footer{padding-top:20px;line-height:1.6}
}
@media(max-width:360px){
  .topbar{padding-right:9px;padding-left:9px}
  .brand{font-size:12px}
  .brand-logo{width:32px;height:32px}
  .topbar nav a{padding:8px 8px}
  .page-shell{padding-right:9px;padding-left:9px}
  .stat-card{padding:10px}
  .stat-card strong{font-size:21px}
  .heading-actions{grid-template-columns:1fr}
  .heading-actions .subtle-link{grid-column:auto}
}
.substitute-list{list-style:none;padding:0;margin:0;display:grid;gap:7px}
.substitute-list li{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:#fff;font-size:12px;color:#526175}
.substitute-list time{font-weight:650;color:#263447}
.substitute-teacher{min-width:80px}
.substitute-student{color:#526175}
.substitute-one{color:#8996a6}
.substitute-list form{margin-left:auto}
.substitute-list .text-button{padding:5px 7px}
@media(max-width:640px){
  .substitute-panel .section-heading>.button{min-height:40px}
  .substitute-list li{gap:8px;padding:9px;font-size:11px;flex-wrap:wrap}
  .substitute-teacher{min-width:0}
  .substitute-student{max-width:100%;white-space:normal}
  .substitute-list form{margin-left:auto}
}
.teacher-assignment-list{display:grid;gap:6px;margin:9px 0}
.teacher-assignment{display:flex;align-items:center;justify-content:space-between;gap:10px;max-width:420px;padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:#fbfcfe;font-size:12px;color:#526175}
.teacher-assignment form{margin:0}
.assignment-add{display:flex;align-items:center;gap:8px;max-width:420px;margin:8px 0 12px}
.assignment-add select{flex:1;min-width:0;min-height:42px;padding:8px 10px;border:1px solid #dfe6ee;border-radius:9px;background:#fff;color:#334155;font-size:13px}
@media(max-width:640px){
  .assignment-add{align-items:stretch;max-width:none}
  .assignment-add select{min-height:44px;font-size:16px}
  .assignment-add .button{min-height:44px;white-space:nowrap}
}