:root { --pico-font-size: 100%; }
body > header nav { padding: .25rem 0; }
body > header { border-bottom: 1px solid var(--pico-muted-border-color); margin-bottom: 1rem; }
.brand { font-weight: 700; text-decoration: none; }
.brand small { display: block; font-weight: 400; font-size: .7rem; color: var(--pico-muted-color); }
main.container { padding-top: .5rem; }
.err { color: #c62828; }
.ok { color: #2e7d32; }
.warn { color: #ef6c00; }
.muted { color: var(--pico-muted-color); }
.alert { padding: .75rem 1rem; border-radius: var(--pico-border-radius); margin-bottom: 1rem; border: 1px solid; }
.alert-danger { background: #fdecea; border-color: #f5c6c2; color: #8a1c1c; }
.alert-warning { background: #fff4e5; border-color: #ffd8a8; color: #7a4100; }
.alert-success { background: #e8f5e9; border-color: #b7dfb9; color: #1b5e20; }
.alert-info { background: #e3f2fd; border-color: #b6d9f7; color: #0d47a1; }
.badge { display: inline-block; padding: .05rem .5rem; border-radius: 1rem; font-size: .75rem; background: var(--pico-muted-border-color); }
.badge-red { background: #f8d7da; color: #842029; }
.badge-green { background: #d1e7dd; color: #0f5132; }
.badge-yellow { background: #fff3cd; color: #664d03; }
.badge-blue { background: #cfe2ff; color: #084298; }
table.compact td, table.compact th { padding: .35rem .5rem; font-size: .9rem; white-space: nowrap; }
.table-wrap { overflow-x: auto; }
.tick { color: #2e7d32; font-weight: 700; }
.cross { color: #bbb; }
.item-row { text-align: left; display: flex; align-items: center; gap: .75rem; padding: .6rem .75rem; border: 1px solid var(--pico-muted-border-color); border-radius: .5rem; margin-bottom: .5rem; cursor: pointer; }
.item-row:hover { background: var(--pico-secondary-background, #f3f4f6); }
.item-row.checked { background: #e8f5e9; border-color: #a5d6a7; }
.item-row input[type=checkbox] { margin: 0; width: 1.4rem; height: 1.4rem; }
.item-row .icon { font-size: 1.5rem; width: 2rem; text-align: center; }
.item-row .name { flex: 1; }
.item-row .name small { display: block; color: var(--pico-muted-color); }
.big-btn { font-size: 1.25rem; padding: 1rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.cards article { margin: 0; }
.day-nav { display: flex; align-items: center; justify-content: space-between; gap: .5rem; margin-bottom: 1rem; }
.day-nav a[role=button], .day-nav button { margin: 0; padding: .4rem .9rem; }
.day-nav strong { font-size: 1.1rem; }
.inline-form { display: inline; }
.inline-form button { margin: 0; padding: .2rem .6rem; font-size: .8rem; width: auto; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.actions a[role=button], .actions button { margin: 0; width: auto; }
form.row-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .75rem; align-items: end; }
form.row-form button { margin: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } }
.week-grid th, .week-grid td { text-align: center; }
.week-grid td:first-child, .week-grid th:first-child { text-align: left; }
.sticky-col { position: sticky; left: 0; background: var(--pico-background-color); }
.hint { font-size: .85rem; color: var(--pico-muted-color); }
.login-warning { border-left: 4px solid #ef6c00; }
footer.container { text-align: center; color: var(--pico-muted-color); font-size: .8rem; padding: 2rem 0; }
#students tbody { counter-reset: row; }
#students tbody tr.student-row { counter-increment: row; }
#students td.num::before { content: counter(row); color: var(--pico-muted-color); }