:root{--navy:#17365d;--blue:#eaf3fb;--gold:#f4b183;--ink:#182333;--muted:#687386;--line:#dce4ee;--green:#16774a;--red:#a33b32;--bg:#f5f7fa;--white:#fff}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;color:var(--ink);background:var(--bg);font:15px/1.45 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif;padding-bottom:calc(24px + env(safe-area-inset-bottom))}button,input,select{font:inherit}header{padding:calc(18px + env(safe-area-inset-top)) 20px 18px;background:linear-gradient(145deg,#102a4a,var(--navy));color:#fff;display:flex;align-items:center;justify-content:space-between;box-shadow:0 8px 26px #17365d30}h1,h2,h3,p{margin-top:0}header h1{font-size:27px;margin:2px 0 0}.eyebrow{font-size:11px;letter-spacing:.13em;font-weight:800;opacity:.72;margin:0}.icon-btn{border:0;border-radius:14px;background:#ffffff18;color:inherit;font-size:24px;width:44px;height:44px}.card{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:0 8px 28px #17365d0c}main{max-width:760px;margin:auto;padding:16px}.hero{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;margin-top:-4px;background:linear-gradient(135deg,#fff,#f1f7fc)}.hero h2{margin:10px 0 5px;font-size:22px}.hero p{color:var(--muted);margin:0}.badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--blue);color:var(--navy);font-size:12px;font-weight:800}.controls{margin-top:14px}label,.section-label{font-weight:800;color:var(--navy);display:block;margin-bottom:7px}.section-label{display:flex;justify-content:space-between;align-items:center;margin-top:18px}.section-label small{color:var(--muted);font-weight:600}select,input{width:100%;min-height:50px;border:1px solid #c9d4e1;border-radius:14px;background:#fff;color:var(--ink);padding:10px 13px;outline:none}select:focus,input:focus{border-color:var(--navy);box-shadow:0 0 0 3px #17365d18}.absent-list{display:grid;gap:9px}.teacher-row{display:grid;grid-template-columns:32px 1fr 42px;gap:8px;align-items:center}.teacher-row .number{font-weight:800;color:var(--muted);text-align:center}.remove-btn{border:0;background:#f7e9e7;color:var(--red);border-radius:12px;height:42px;font-size:20px}.button-row{display:flex;gap:10px;margin-top:16px}.button-row button{flex:1}.primary,.secondary,.danger{border:0;border-radius:14px;min-height:48px;padding:11px 15px;font-weight:800}.primary{background:var(--navy);color:#fff;box-shadow:0 7px 16px #17365d2b}.secondary{background:var(--blue);color:var(--navy)}.danger{background:#f8e5e3;color:var(--red)}.error{color:var(--red);font-weight:700;margin:10px 0 0}.hidden{display:none!important}.result-heading{display:flex;align-items:center;justify-content:space-between;margin:25px 2px 12px}.result-heading h2{margin:2px 0;font-size:21px}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}.summary{padding:13px;border-radius:16px;background:#fff;border:1px solid var(--line);text-align:center}.summary strong{display:block;font-size:23px;color:var(--navy)}.summary span{font-size:11px;color:var(--muted);font-weight:700}.result-list{display:grid;gap:10px}.lesson{background:#fff;border:1px solid var(--line);border-left:5px solid var(--navy);border-radius:17px;padding:15px}.lesson.combine{border-left-color:#d78925}.lesson.action{border-left-color:var(--red)}.lesson.none{border-left-color:#8d98a7}.lesson-top{display:flex;justify-content:space-between;gap:12px}.lesson h3{font-size:16px;margin:0}.lesson-time{white-space:nowrap;color:var(--muted);font-weight:700}.lesson-meta{color:var(--muted);margin:3px 0 11px}.substitute{font-weight:850;color:var(--navy)}.status{display:inline-flex;margin-top:7px;padding:4px 8px;border-radius:8px;background:var(--blue);font-size:11px;font-weight:800}.lesson-note{font-size:12px;color:var(--muted);margin:8px 0 0}.workload-card{margin-top:14px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:12px}th,td{padding:9px 7px;border-bottom:1px solid var(--line);text-align:center}th:first-child,td:first-child{text-align:left;min-width:180px}th{color:var(--navy);background:var(--blue)}tr.limit td:last-child{color:var(--red);font-weight:900}.sticky-actions{position:sticky;bottom:calc(8px + env(safe-area-inset-bottom));padding:8px;background:#f5f7fad9;backdrop-filter:blur(10px);border-radius:16px}.empty-state{text-align:center;color:var(--muted);padding:45px 20px}.empty-icon{margin:auto auto 12px;width:56px;height:56px;border-radius:18px;background:var(--blue);display:grid;place-items:center;color:var(--green);font-size:25px;font-weight:900}.empty-state h3{color:var(--navy);margin-bottom:6px}.lock{position:fixed;inset:0;z-index:100;background:linear-gradient(145deg,#102a4a,#17365d);display:grid;place-items:center;padding:25px}.lock-card{background:#fff;border-radius:24px;padding:28px;width:min(100%,360px);text-align:center}.app-mark{margin:auto auto 14px;width:62px;height:62px;display:grid;place-items:center;border-radius:19px;background:var(--navy);color:#fff;font-size:21px;font-weight:900}.lock-card p{color:var(--muted)}.lock-card button{width:100%;margin-top:12px}dialog{border:0;border-radius:22px;padding:0;width:min(calc(100% - 28px),440px);box-shadow:0 30px 80px #0005}dialog::backdrop{background:#102a4acc;backdrop-filter:blur(3px)}.dialog-card{padding:20px}.dialog-title{display:flex;justify-content:space-between;align-items:center}.dialog-title h2{margin:0}.dialog-title .icon-btn{background:var(--blue);color:var(--navy)}.dialog-card button:not(.icon-btn){width:100%;margin-top:10px}.dialog-card hr{border:0;border-top:1px solid var(--line);margin:18px 0 8px}.fineprint{font-size:12px;color:var(--muted);margin:14px 0 0}@media(min-width:680px){main{padding:24px}.result-list{grid-template-columns:1fr 1fr}}@media print{header,.hero,.controls,.sticky-actions,.empty-state,.icon-btn{display:none!important}main{max-width:none;padding:0}.lesson,.card{break-inside:avoid;box-shadow:none}.result-list{display:block}.lesson{margin-bottom:8px}}