:root{--bg:#f4f7fb;--card:#fff;--text:#101828;--muted:#667085;--line:#e4e7ec;--nav:#101828;--nav2:#1d2939;--primary:#155eef;--primary2:#004eeb;--green:#079455;--red:#d92d20;--orange:#dc6803;--purple:#6941c6;--shadow:0 8px 28px rgba(16,24,40,.08);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-size:14px}.boot{height:100vh;display:grid;place-items:center;color:var(--muted)}button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}
.login-shell{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;background:#fff}.login-brand{background:linear-gradient(145deg,#101828,#0b2e6f);color:#fff;padding:64px;display:flex;flex-direction:column;justify-content:space-between;min-height:100vh}.brand-mark{display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px}.brand-logo{width:42px;height:42px;border-radius:12px;background:#fff;color:#155eef;display:grid;place-items:center;font-weight:900}.login-brand h1{font-size:48px;line-height:1.05;margin:0 0 20px;max-width:650px}.login-brand p{font-size:18px;color:#d0d5dd;max-width:560px;line-height:1.6}.login-bullets{display:grid;gap:14px;margin-top:32px}.login-bullets div{display:flex;gap:10px;color:#e4e7ec}.login-form-wrap{display:grid;place-items:center;padding:34px}.login-card{width:min(430px,100%)}.login-card h2{font-size:30px;margin:0 0 8px}.login-card p{color:var(--muted);margin:0 0 28px}
label{font-weight:650;font-size:13px;display:block;margin:0 0 7px}.field{margin-bottom:16px}.input,.select,.textarea{width:100%;border:1px solid #d0d5dd;border-radius:10px;padding:11px 12px;background:#fff;outline:none;color:var(--text)}.input:focus,.select:focus,.textarea:focus{border-color:#84adff;box-shadow:0 0 0 4px #eff4ff}.textarea{min-height:90px;resize:vertical}.btn{border:0;border-radius:10px;padding:10px 14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary2)}.btn-secondary{background:#fff;border:1px solid #d0d5dd;color:#344054}.btn-danger{background:#fef3f2;color:#b42318;border:1px solid #fecdca}.btn-success{background:#ecfdf3;color:#067647;border:1px solid #abefc6}.btn-sm{padding:7px 10px;font-size:12px}.btn-block{width:100%}
.layout{min-height:100vh;display:grid;grid-template-columns:260px 1fr}.sidebar{background:var(--nav);color:#d0d5dd;position:fixed;inset:0 auto 0 0;width:260px;padding:18px 14px;display:flex;flex-direction:column;z-index:30}.sidebar .brand-mark{padding:6px 10px 22px}.nav{display:grid;gap:5px}.nav button{border:0;background:transparent;color:#d0d5dd;padding:11px 12px;border-radius:9px;text-align:left;display:flex;align-items:center;gap:10px;font-weight:600}.nav button:hover{background:var(--nav2);color:#fff}.nav button.active{background:#344054;color:#fff}.nav .ico{width:20px;text-align:center}.side-bottom{margin-top:auto;border-top:1px solid #344054;padding-top:14px}.user-mini{padding:10px 12px}.user-mini b{display:block;color:#fff}.user-mini small{color:#98a2b3}.main{grid-column:2;min-width:0}.topbar{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20}.topbar h1{font-size:20px;margin:0}.top-actions{display:flex;gap:8px;align-items:center}.content{padding:26px 28px 50px;max-width:1600px;margin:0 auto}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.page-head h2{font-size:27px;margin:0 0 6px}.page-head p{margin:0;color:var(--muted)}.actions{display:flex;gap:8px;flex-wrap:wrap}
.grid{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--card);border:1px solid #eaecf0;border-radius:14px;box-shadow:0 1px 2px rgba(16,24,40,.03)}.card-pad{padding:18px}.stat{padding:18px}.stat .k{color:var(--muted);font-weight:600;font-size:13px}.stat .v{font-size:29px;font-weight:800;margin-top:7px}.stat .s{font-size:12px;color:var(--muted);margin-top:4px}.section-title{padding:17px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.section-title h3{font-size:15px;margin:0}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.045em;color:#667085;background:#f9fafb;border-bottom:1px solid var(--line);padding:11px 14px;white-space:nowrap}.table td{padding:12px 14px;border-bottom:1px solid #f2f4f7;vertical-align:middle}.table tr:last-child td{border-bottom:0}.muted{color:var(--muted)}.mono{font-variant-numeric:tabular-nums}.right{text-align:right!important}.strong{font-weight:750}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:4px 8px;font-weight:700;font-size:11px;white-space:nowrap}.b-blue{background:#eff4ff;color:#175cd3}.b-green{background:#ecfdf3;color:#067647}.b-red{background:#fef3f2;color:#b42318}.b-orange{background:#fffaeb;color:#b54708}.b-gray{background:#f2f4f7;color:#475467}.b-purple{background:#f4f3ff;color:#5925dc}
.toolbar{display:flex;gap:10px;align-items:end;flex-wrap:wrap;margin-bottom:16px}.toolbar .field{margin:0;min-width:160px}.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(150px,1fr));gap:8px;overflow:auto}.day-col{background:#fff;border:1px solid var(--line);border-radius:12px;min-height:430px}.day-head{padding:12px;border-bottom:1px solid var(--line);font-weight:750;position:sticky;top:72px;background:#fff;z-index:5}.day-head small{display:block;color:var(--muted);margin-top:3px}.lesson{margin:8px;padding:10px;border-radius:9px;border-left:4px solid var(--primary);background:#f5f8ff}.lesson.extra{border-left-color:var(--purple);background:#f9f5ff}.lesson.cancelled{border-left-color:#98a2b3;background:#f9fafb;opacity:.65}.lesson.completed{border-left-color:var(--green);background:#f6fef9}.lesson .time{font-weight:800}.lesson .name{font-weight:700;margin-top:4px}.lesson .meta{font-size:11px;color:var(--muted);margin-top:4px}.lesson .lesson-actions{display:flex;gap:5px;margin-top:8px;flex-wrap:wrap}
.progress{height:9px;background:#eaecf0;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:var(--primary);border-radius:999px}.work-row{display:grid;grid-template-columns:180px 1fr 80px;gap:12px;align-items:center;margin:12px 0}.modal-bg{position:fixed;inset:0;background:rgba(16,24,40,.55);display:grid;place-items:center;padding:18px;z-index:100}.modal{width:min(680px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:16px;box-shadow:0 30px 80px rgba(16,24,40,.3)}.modal-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.modal-head h3{margin:0;font-size:18px}.modal-body{padding:20px}.modal-foot{padding:16px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}.x{border:0;background:#f2f4f7;border-radius:8px;width:32px;height:32px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.span2{grid-column:1/-1}.notice{padding:12px 14px;border-radius:10px;background:#eff4ff;color:#1849a9;border:1px solid #d1e0ff;margin-bottom:15px}.notice.warn{background:#fffaeb;color:#93370d;border-color:#fedf89}.notice.good{background:#ecfdf3;color:#05603a;border-color:#abefc6}.empty{padding:34px;text-align:center;color:var(--muted)}.split{display:flex;justify-content:space-between;align-items:center;gap:12px}.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:16px}.tab{border:0;background:transparent;padding:10px 12px;font-weight:700;color:var(--muted);border-bottom:2px solid transparent}.tab.active{color:var(--primary);border-color:var(--primary)}
.qr-box{display:grid;place-items:center;padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px}.qr-box img{max-width:260px;width:100%}.pin{font-size:34px;letter-spacing:.25em;font-weight:900;text-align:center;margin:12px 0}.planner-item{display:grid;grid-template-columns:1.4fr 1.2fr 1fr 1fr;gap:12px;padding:12px 14px;border-bottom:1px solid #f2f4f7}.kpi-accent{border-top:3px solid var(--primary)}#toast{position:fixed;right:20px;bottom:20px;z-index:200;display:grid;gap:8px}.toast{background:#101828;color:#fff;padding:12px 15px;border-radius:10px;box-shadow:var(--shadow);max-width:360px}.toast.error{background:#7a271a}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr 1fr}.login-shell{grid-template-columns:1fr}.login-brand{display:none}.layout{grid-template-columns:78px 1fr}.sidebar{width:78px;padding:18px 10px}.sidebar .brand-mark span,.nav button span:not(.ico),.user-mini{display:none}.sidebar .brand-mark{justify-content:center;padding:6px 0 22px}.nav button{justify-content:center}.main{grid-column:2}.work-row{grid-template-columns:130px 1fr 60px}}
@media(max-width:720px){.layout{display:block}.sidebar{position:fixed;bottom:0;top:auto;width:100%;height:66px;display:block;padding:7px 8px;z-index:50}.sidebar .brand-mark,.side-bottom{display:none}.nav{display:flex;overflow:auto}.nav button{min-width:62px;flex:1;padding:8px}.nav button span:not(.ico){display:none}.main{padding-bottom:68px}.topbar{height:58px;padding:0 14px}.content{padding:18px 12px 34px}.page-head{flex-direction:column}.grid-4,.grid-3,.grid-2,.form-grid{grid-template-columns:1fr}.span2{grid-column:auto}.calendar-grid{grid-template-columns:1fr}.day-col{min-height:0}.day-head{top:58px}.login-form-wrap{padding:20px}.work-row{grid-template-columns:100px 1fr 55px}.planner-item{grid-template-columns:1fr 1fr}}
.weekday-grid{display:grid;grid-template-columns:repeat(7,minmax(44px,1fr));gap:7px}.weekday-pill{margin:0;cursor:pointer}.weekday-pill input{position:absolute;opacity:0;pointer-events:none}.weekday-pill span{display:block;text-align:center;padding:9px 5px;border:1px solid #d0d5dd;border-radius:9px;background:#fff;color:#475467;font-weight:750}.weekday-pill input:checked+span{background:#eff4ff;border-color:#84adff;color:#175cd3}.plan-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:8px;margin:0 0 14px}.plan-kpi{background:#f8fafc;border:1px solid #eaecf0;border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:4px}.plan-kpi span{font-size:12px;color:#667085}@media(max-width:720px){.weekday-grid{grid-template-columns:repeat(4,1fr)}}