:root {
    --bg: #ffffff;
    --fg: #121212;
    --muted: #666;
    --card: #f6f6f6;
    --accent: #0d6efd;
    --border: #e5e5e5;
}

:root.dark {
    --bg: #0f1115;
    --fg: #e7e7e9;
    --muted: #9aa0aa;
    --card: #171a21;
    --accent: #66a7ff;
    --border: #262a33;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, "Noto Sans", Arial, sans-serif;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 10;
}

.topbar h1 {
    margin: 0;
    font-size: 1.25rem;
}

.subtitle {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: .9rem;
}

#theme-toggle {
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--fg);
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
}

.container {
    max-width: 1100px;
    margin: 16px auto;
    padding: 0 12px;
    display: grid;
    gap: 16px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px;
}

.grid-two {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 800px) {
    .grid-two {
        grid-template-columns: 1fr 1fr;
    }
}

.balance {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 6px 0 8px;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: .8rem;
    border: 1px solid var(--border);
    background: transparent;
}

.badge.ok {
    border-color: #2ea043;
}

.badge.due {
    border-color: #c43d3d;
}

.collection {
    padding: 10px;
    border: 1px dashed var(--border);
    border-radius: 10px;
    margin-bottom: 10px;
}

.collection h3 {
    margin: 0 0 6px;
}

.collection .meta {
    color: var(--muted);
    font-size: .9rem;
}

.list {
    margin: 8px 0 0;
    padding-left: 18px;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    border-bottom: 1px solid var(--border);
    padding: 8px;
    text-align: left;
}

.footer {
    text-align: center;
    color: var(--muted);
    padding: 20px;
}

.lookup .sum {
    font-weight: 700;
    margin-top: 8px;
}

.hint {
    color: var(--muted);
    font-size: .9rem;
}

.copy {
    cursor: pointer;
    border: 1px dashed var(--border);
    padding: 6px 8px;
    border-radius: 8px;
    display: inline-block;
}

.current-date {
    font-size: .95rem;
    color: var(--muted);
    margin-bottom: 12px;
}

.event {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 10px;
}

.event h4 {
    margin: 0 0 4px;
}

.event .event-date {
    color: var(--muted);
    font-size: .9rem;
}

.event .countdown {
    color: var(--accent);
    font-weight: 600;
    margin-top: 4px;
}

.event.past {
    opacity: 0.6;
}

.event.past .countdown {
    color: var(--muted);
    text-decoration: line-through;
}

.past-events {
    margin-top: 12px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
}

.past-events summary,
.card details summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--muted);
    padding: 8px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-bottom: 1px solid var(--border);
}

.past-events summary:hover,
.card details summary:hover {
    color: var(--fg);
}

.card details summary::after {
    content: "▼ Rozwiń";
    font-size: .85rem;
    font-weight: 500;
    color: var(--muted);
}

.card details[open] summary::after {
    content: "▲ Zwiń";
}

.past-events>div,
.card details>div {
    margin-top: 8px;
}

.information-item {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 10px;
}

.information-item h4 {
    margin: 0 0 4px;
}

.information-item p {
    margin: 0;
    color: var(--muted);
    font-size: .95rem;
}