:root {
    --bg: #f5f6f8;
    --surface: #fff;
    --text: #1d2330;
    --muted: #5d6677;
    --border: #dde1e7;
    --accent: #c8102e;
    --accent-text: #fff;
    --tpp: #fff6e0;
    --ok: #1e7b45;
    --missing: #a15c00;
    --over: #1f5fa8;
    --warning: #b03a2e;
    --radius: 10px;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14171c;
        --surface: #1d2128;
        --text: #e7e9ee;
        --muted: #9aa3b2;
        --border: #333a45;
        --accent: #e0455d;
        --tpp: #3a3220;
        --ok: #5fcf8d;
        --missing: #f0b357;
        --over: #7fb2ef;
        --warning: #ff8a7a;
        color-scheme: dark;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 .75rem; }
a { color: var(--accent); }

.topbar {
    display: flex;
    align-items: baseline;
    gap: .75rem;
    flex-wrap: wrap;
    padding: .75rem 1rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 1.2rem; color: var(--accent); text-decoration: none; }
.tagline { color: var(--muted); font-size: .9rem; }

.container { max-width: 860px; margin: 0 auto; padding: 1rem; display: grid; gap: 1rem; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
}

.muted { color: var(--muted); }
.small { font-size: .875rem; }
.notice { padding: .75rem; border-radius: var(--radius); background: var(--tpp); }

.site-footer { max-width: 860px; margin: 0 auto; padding: 0 1rem 1rem; text-align: right; }
.version { color: var(--muted); font-size: .75rem; font-variant-numeric: tabular-nums; }

/* Forms */

fieldset { border: 0; padding: 0; margin: 0 0 1rem; }
legend, .field > span { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .25rem; }
.field { display: block; margin-bottom: 1rem; }

input[type="text"], select {
    font: inherit;
    color: inherit;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: .4rem .5rem;
    min-width: 0;
}
input[type="text"], select { width: 100%; }
input.time { width: 4.2rem; text-align: center; font-variant-numeric: tabular-nums; }
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

.identity { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; margin-top: 1rem; }
.identity .field { margin-bottom: 0; }

.button {
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: 6px;
    padding: .5rem 1rem;
}
.button:hover { border-color: var(--muted); }
.button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.button.primary:hover { filter: brightness(1.08); }
.button.small { padding: .25rem .6rem; font-size: .875rem; }
.button.ghost { background: transparent; }
.button:disabled { opacity: .6; cursor: progress; }

.segmented { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-bottom: .75rem; flex-wrap: wrap; }
.segmented > a, .segmented > label > span {
    display: block;
    padding: .45rem .9rem;
    color: var(--text);
    text-decoration: none;
    cursor: pointer;
}
.segmented > * + * { border-left: 1px solid var(--border); }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented > a.active, .segmented input:checked + span { background: var(--accent); color: var(--accent-text); }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: -3px; }

.ues { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: .35rem .75rem; margin-bottom: .5rem; }
.ue { display: flex; gap: .5rem; align-items: flex-start; font-size: .9rem; cursor: pointer; }
.ue input { margin-top: .25rem; }
.ue em { color: var(--muted); }

/* Counter */

.counter {
    position: sticky;
    top: 0;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: .75rem 1rem;
    border-radius: var(--radius);
    background: var(--surface);
    border: 2px solid var(--border);
    box-shadow: 0 2px 8px rgb(0 0 0 / .06);
}
.counter .total { font-size: 1.3rem; }
.counter .status { font-weight: 600; }
.counter[data-state="ok"] { border-color: var(--ok); }
.counter[data-state="ok"] .status { color: var(--ok); }
.counter[data-state="missing"] { border-color: var(--missing); }
.counter[data-state="missing"] .status { color: var(--missing); }
.counter[data-state="over"] { border-color: var(--over); }
.counter[data-state="over"] .status { color: var(--over); }

/* Days and slots */

.days { display: grid; gap: .75rem; }
.day { padding: .75rem 1rem; }
.day-header { display: flex; justify-content: space-between; align-items: baseline; }
.day-total { color: var(--muted); font-variant-numeric: tabular-nums; }
.empty { margin: .25rem 0 .5rem; }

.slots { list-style: none; margin: 0 0 .5rem; padding: 0; display: grid; gap: .4rem; }
.slot {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: .5rem;
    padding: .4rem;
    border-radius: 8px;
    border: 1px solid transparent;
}
.slot.tpp { background: var(--tpp); }
.slot.has-warning { border-color: var(--warning); }
.times { display: flex; align-items: center; gap: .25rem; }
.duration { color: var(--muted); font-size: .875rem; font-variant-numeric: tabular-nums; min-width: 3.2rem; text-align: right; }
.warning { grid-column: 1 / -1; margin: 0; color: var(--warning); font-size: .8rem; }

.icon-button {
    font: inherit;
    cursor: pointer;
    border: 0;
    background: transparent;
    color: var(--muted);
    width: 2rem;
    height: 2rem;
    border-radius: 6px;
}
.icon-button:hover { color: var(--warning); background: var(--bg); }

.day-actions { display: flex; gap: .5rem; flex-wrap: wrap; }

/* Actions */

.actions .buttons { display: flex; justify-content: flex-end; gap: .75rem; flex-wrap: wrap; }
.messages:empty { display: none; }
.messages { margin-bottom: .75rem; }
.messages p { margin: 0 0 .25rem; }
.messages[data-type="error"] { color: var(--warning); }
.messages[data-type="warning"] { color: var(--missing); }
.messages[data-type="success"] { color: var(--ok); }

@media (max-width: 600px) {
    .identity { grid-template-columns: 1fr; }
    .identity .field + .field { margin-top: .75rem; }
    .slot { grid-template-columns: 1fr auto auto; }
    .slot .label { grid-column: 1 / -1; grid-row: 2; }
}