*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,sans-serif;background:#f6f7fb;color:#1d2433}
header{background:#24407a;color:#fff;padding:14px 20px;display:flex;justify-content:space-between;align-items:center}
header a{color:#fff}main{max-width:1000px;margin:0 auto;padding:20px}
nav button{margin:4px;padding:8px 14px;border:0;border-radius:8px;background:#dfe6f5;cursor:pointer}nav button.on{background:#24407a;color:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.tile{display:block;background:#fff;border-radius:14px;padding:22px;text-align:center;text-decoration:none;color:inherit;box-shadow:0 2px 6px #0001;font-weight:600}
.tile span{display:block;font-size:44px}.kid .tile{font-size:24px;padding:34px}.kid .tile span{font-size:72px}
.card{background:#fff;border-radius:12px;padding:16px 20px;margin:14px 0;box-shadow:0 2px 6px #0001}
table{width:100%;border-collapse:collapse;font-size:14px}td,th{border:1px solid #dde;padding:6px;vertical-align:top;text-align:left}
td[contenteditable=true]{background:#fffbe6}.fill{color:#b45309;font-weight:600}.warn{background:#fdecea;border-left:4px solid #c0392b}
.bar{position:sticky;bottom:0;background:#fff;padding:10px;border-top:1px solid #ddd;display:none}.bar.on{display:block}
button.primary{background:#24407a;color:#fff;border:0;border-radius:8px;padding:8px 16px;cursor:pointer}