:root{color-scheme:light;--bg:#f3f6fa;--surface:#fff;--text:#18283e;--muted:#586a80;--line:#dce4ee;--primary:#173a69;--soft:#eaf0f8;--present:#dcf4e3;--late:#fff1bc;--absent:#ffdfe1;--excused:#ffdfbf;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}body.dark{color-scheme:dark;--bg:#101b2a;--surface:#1b2a3e;--text:#edf4ff;--muted:#b0c0d5;--line:#3a4c64;--primary:#bcd6ff;--soft:#2c3e57;--present:#173d2a;--late:#493e16;--absent:#4b2428;--excused:#4a2b14}header{display:flex;align-items:center;gap:12px;padding:18px 22px;background:var(--surface);border-bottom:1px solid var(--line);padding-top:max(18px,env(safe-area-inset-top))}header img{width:46px;height:46px;border-radius:12px;object-fit:cover}header strong{display:block;font-size:18px}header div span{font-size:13px;color:var(--muted)}#sync-state{margin-left:auto;font-size:12px;color:var(--muted);max-width:130px;text-align:right}main{max-width:900px;margin:auto;padding:24px 18px 120px}h1{font-size:26px;margin:0 0 20px}h2{font-size:19px;margin:0 0 12px}h3{font-size:17px;margin:0 0 8px}p{line-height:1.5;margin:8px 0}.muted,small{color:var(--muted);font-size:14px;line-height:1.5}.card{background:var(--surface);border-radius:18px;padding:18px;margin:0 0 12px}.card.clickable{cursor:pointer}.card.clickable:focus-visible{outline:3px solid var(--primary)}.tools{margin-bottom:22px}.tools .row{display:flex;flex-wrap:wrap;gap:10px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.stat strong{display:block;font-size:28px;margin-bottom:6px}.stat span{font-size:14px;color:var(--muted)}button,.button{min-height:46px;border:0;border-radius:13px;background:var(--soft);color:var(--primary);padding:12px 16px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;gap:8px;box-shadow:none}button.primary,.button.primary{background:#173a69;color:#fff}button.danger{background:var(--absent);color:var(--text)}button:disabled{opacity:.5;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #6b96d2;outline-offset:2px}.stack{display:grid;gap:10px}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.fields .wide{grid-column:1/-1}label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}input,select,textarea{font:inherit;width:100%;min-height:46px;padding:12px;border:1px solid var(--line);border-radius:13px;background:var(--surface);color:var(--text)}textarea{min-height:100px;resize:vertical}input[type=checkbox]{width:22px;min-height:22px;margin:0;accent-color:#173a69}.check{display:flex;align-items:center;gap:12px;margin:10px 0}.row{display:flex;align-items:center;gap:12px}.row.space{justify-content:space-between}.grow{min-width:0;flex:1}.name{display:block;text-align:left;font-weight:650;overflow-wrap:anywhere}.details{margin-top:4px;overflow-wrap:anywhere;color:var(--muted);font-size:14px}.roster-row{display:grid;grid-template-columns:minmax(0,1fr) 140px;align-items:center;gap:12px;border-radius:15px;padding:14px;margin:8px 0;background:var(--soft)}.roster-row.Present{background:var(--present)}.roster-row.Late{background:var(--late)}.roster-row.Absent{background:var(--absent)}.roster-row.Excused{background:var(--excused)}.profile-head{display:flex;gap:16px;align-items:center}.avatar{width:64px;height:64px;border-radius:16px;object-fit:cover;background:var(--soft)}nav{position:fixed;bottom:0;left:0;right:0;display:flex;background:var(--surface);border-top:1px solid var(--line);padding:8px max(8px,env(safe-area-inset-left)) max(10px,env(safe-area-inset-bottom));justify-content:center;z-index:10}nav button{flex:1;max-width:170px;background:transparent;color:var(--muted);border-radius:14px;min-width:0;padding:8px 3px;flex-direction:column;font-size:12px;gap:4px}nav button svg{width:22px;height:22px}nav button.active{color:var(--primary);background:var(--soft)}dialog{border:0;border-radius:20px;padding:24px;background:var(--surface);color:var(--text);max-width:440px;width:calc(100% - 32px)}dialog::backdrop{background:#10213c99}dialog form{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}#toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);padding:12px 18px;border-radius:13px;background:#18283e;color:white;z-index:100;max-width:90vw;display:none}#toast.show{display:block}.login{max-width:440px;margin:35px auto}.empty{text-align:center;padding:30px 18px}.badge{display:inline-block;border-radius:8px;background:var(--soft);padding:4px 8px;font-size:12px}.part{border:1px solid var(--line);border-radius:13px;padding:14px;margin-top:10px}.back{margin-bottom:16px}.chart-row{display:grid;grid-template-columns:minmax(100px,1fr) 2fr 35px;gap:10px;align-items:center;margin:9px 0;font-size:14px}.bar{height:9px;background:var(--soft);border-radius:9px}.bar span{display:block;height:100%;background:#4d77ae;border-radius:9px}.error{color:#ad263b;white-space:pre-wrap}.summary span{padding:10px;border-radius:12px;display:inline-block;margin:4px}.summary .Present{background:var(--present)}.summary .Late{background:var(--late)}.summary .Absent{background:var(--absent)}.summary .Excused{background:var(--excused)}@media(max-width:500px){main{padding:20px 14px 120px}.fields{grid-template-columns:1fr}.roster-row{grid-template-columns:minmax(0,1fr) 120px}header{padding-left:15px;padding-right:15px}header strong{font-size:17px}.tools .row button{flex:1}nav button{font-size:11px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(prefers-reduced-motion:no-preference){button,.card{transition:background .12s ease}}