:root{--bg:#f7f7f5;--surface:#ffffff;--ink:#1c1c1a;--ink-muted:#5d5d57;--line:#dcdcd6;--accent:#1d6fb8;--accent-ink:#ffffff;--danger:#b3261e;--regular:#4a8f3c;--expert:#a5561d;--tap:48px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.6;font-family:system-ui,-apple-system,Hiragino Sans,Noto Sans JP,sans-serif;-webkit-text-size-adjust:100%}.app{max-width:640px;margin:0 auto;padding:0 16px 96px}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--surface);border-bottom:1px solid var(--line);margin:0 -16px 16px;padding:12px 16px}.topbar h1{font-size:18px;margin:0}.crumbs,.topbar .who{font-size:13px;color:var(--ink-muted)}.crumbs{margin:0 0 12px}.crumbs a{color:var(--ink-muted)}h2{font-size:17px;margin:24px 0 8px}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:12px}.tile-list{list-style:none;margin:0;padding:0}.tile{display:flex;align-items:center;gap:12px;min-height:64px;padding:8px 12px;margin-bottom:8px;background:var(--surface);border-left:1px solid var(--line);border:1px solid var(--line);border-left-width:6px;border-radius:12px;text-decoration:none;color:inherit}.tile.regular{border-left-color:var(--regular)}.tile.expert{border-left-color:var(--expert)}.tile .name{font-size:18px;font-weight:600}.tile .meta{font-size:13px;color:var(--ink-muted)}.tile .grow{flex:1 1}.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;border:1px solid var(--line);color:var(--ink-muted);background:var(--bg)}.badge.regular{border-color:var(--regular);color:var(--regular)}.badge.expert{border-color:var(--expert);color:var(--expert)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:var(--tap);min-width:var(--tap);padding:0 20px;font-size:16px;font-weight:600;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none;cursor:pointer}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn.danger{color:var(--danger);border-color:var(--danger)}.btn.block{display:flex;width:100%}.btn:disabled{opacity:.5}.actions{display:flex;flex-direction:column;gap:12px;margin-top:16px}.sticky-actions{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);padding:12px 16px calc(12px + env(safe-area-inset-bottom))}.sticky-actions .inner{max-width:640px;margin:0 auto}.field{display:block;margin-bottom:16px}.field>span{display:block;font-size:14px;color:var(--ink-muted);margin-bottom:4px}.field input,.field select,.field textarea{width:100%;min-height:var(--tap);font-size:16px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink)}.field textarea{min-height:96px}.field-row{display:flex;gap:12px}.field-row .field{flex:1 1}.hint{font-size:13px;color:var(--ink-muted)}.error{background:#fdecea;border:1px solid var(--danger);color:var(--danger);border-radius:10px}.error,.notice{padding:12px;margin:12px 0;font-size:14px}.notice{background:#eaf3fb;border:1px solid var(--accent);border-radius:10px}dl.kv{margin:0}dl.kv div{display:flex;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}dl.kv dt{width:8em;flex:none;color:var(--ink-muted);font-size:14px;margin:0}dl.kv dd{margin:0;flex:1 1}.coach-only{border-left:4px solid var(--danger);padding-left:12px}.coach-only-label{font-size:12px;color:var(--danger);font-weight:600}.resend-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#fdecea;border:1px solid var(--danger);color:var(--danger);border-radius:10px;padding:12px;margin:0 0 12px;font-size:14px}.resend-bar .btn{color:var(--danger);border-color:var(--danger);background:var(--surface)}.board-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;font-size:15px}.tile-grid{list-style:none;margin:0 0 16px;padding:0;display:grid;grid-gap:8px;gap:8px;grid-template-columns:1fr 1fr}.student-tile{display:flex;flex-direction:column;align-items:flex-start;gap:2px;width:100%;min-height:84px;padding:10px 12px;background:var(--surface);border-left:1px solid var(--line);border:1px solid var(--line);border-left-width:6px;border-radius:12px;font:inherit;color:inherit;text-align:left;cursor:pointer}.student-tile.regular{border-left-color:var(--regular)}.student-tile.expert{border-left-color:var(--expert)}.student-tile.absent{opacity:.5}.student-tile.unknown{border-style:dashed}.student-tile .name{font-size:18px;font-weight:600}.student-tile .meta{font-size:13px;color:var(--ink-muted)}.student-tile .marks{display:flex;gap:6px;align-items:center;margin-top:2px}.student-tile .att{font-size:16px}.student-tile .att.makeup,.student-tile .att.present,.student-tile .att.trial{color:var(--regular)}.student-tile .att.absent{color:var(--danger)}.student-tile .att.unknown,.student-tile .count{color:var(--ink-muted)}.student-tile .count{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:0 6px}.sheet-backdrop{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.35);display:flex;align-items:flex-end;justify-content:center}.sheet{width:100%;max-width:640px;max-height:88vh;overflow-y:auto;border-radius:16px 16px 0 0;padding:12px 16px calc(16px + env(safe-area-inset-bottom))}.sheet,.sheet-head{background:var(--surface)}.sheet-head{display:flex;align-items:center;justify-content:space-between;gap:12px;position:-webkit-sticky;position:sticky;top:0;padding:4px 0 8px;margin-bottom:4px;border-bottom:1px solid var(--line)}.seg{display:flex;gap:6px;margin:12px 0}.seg-item{flex:1 1;min-height:var(--tap);display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:var(--surface);font:inherit;font-size:15px;color:var(--ink);cursor:pointer}.seg-item.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.seg-item input{margin-right:4px}.criteria{list-style:none;margin:0 0 12px;padding:0}.criterion{display:flex;align-items:stretch;gap:8px;margin-bottom:8px}.criterion-main{flex:1 1;display:flex;align-items:flex-start;gap:10px;min-height:var(--tap);padding:10px 12px;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;font:inherit;font-size:16px;color:inherit;cursor:pointer}.criterion.achieved .criterion-main{background:#eef7ea;border-color:var(--regular)}.criterion.attempted .criterion-main{background:#fdf5e6;border-color:var(--expert)}.criterion .mark{font-size:20px;line-height:1.2}.criterion .body{display:flex;flex-direction:column;gap:2px}.criterion .label{font-size:13px;color:var(--ink-muted)}.criterion .kids{font-size:16px;font-weight:600}.criterion .standard{font-size:13px;color:var(--ink-muted)}.chip{min-width:var(--tap);min-height:var(--tap);padding:0 10px;border:1px solid var(--line);border-radius:12px;background:var(--surface);font:inherit;font-size:13px;color:var(--ink-muted);cursor:pointer}.chip.on{background:var(--expert);border-color:var(--expert);color:var(--accent-ink)}.hint-bar{font-size:14px;color:var(--ink-muted);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin:12px 0}.hint-bar.ready{color:var(--regular);border-color:var(--regular);background:#eef7ea}.row{display:flex;gap:8px;align-items:center;margin:12px 0}.row select{flex:1 1;min-height:var(--tap);font-size:16px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink)}.notes{list-style:none;margin:8px 0 0;padding:0;font-size:14px}.notes li{border-top:1px solid var(--line);padding:8px 0}.toast{position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom));z-index:60;max-width:608px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--ink);color:#fff;border-radius:12px;padding:10px 12px;font-size:14px}.toast .btn{background:transparent;color:#fff;border-color:#fff;min-height:40px}.wrap-list .card{padding:12px}details.level{margin-bottom:12px}details.level>summary{min-height:var(--tap);display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:12px;cursor:pointer;font-size:16px}details.level .rank{margin:12px 0 16px}details.level .rank h3{font-size:15px;margin:12px 0 8px;display:flex;align-items:center;gap:8px}