:root {
    --fg: #1a1a1a;
    --muted: #606060;
    --bg: #ffffff;
    --border: #e0e0e0;
    --in-stock: #1f7a3a;
    --out-of-stock: #b32020;
    --stock-unknown: #808080;
    --accent: #0b5cff;
}

* { box-sizing: border-box; }

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

main {
    max-width: 880px;
    margin: 0 auto;
    padding: 1rem;
}

header h1 {
    margin: 0;
    font-size: 1.4rem;
}

.meta {
    color: var(--muted);
    font-size: 0.9rem;
    margin: 0.25rem 0 1rem;
}

.empty {
    color: var(--muted);
    padding: 2rem 0;
    text-align: center;
}

#filter {
    width: 100%;
    padding: 0.6rem 0.75rem;
    font-size: 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 0.75rem;
}

#filter:focus {
    outline: 2px solid var(--accent);
    outline-offset: -1px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

th, td {
    text-align: left;
    padding: 0.5rem 0.4rem;
    border-bottom: 1px solid var(--border);
}

th {
    font-weight: 600;
    color: var(--muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

td.stock {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

tr.in-stock td.stock { color: var(--in-stock); }
tr.out-of-stock td.stock { color: var(--out-of-stock); }
tr.stock-unknown td.stock { color: var(--stock-unknown); }

/* Hide supplier column on narrow screens — unit, stock and price matter more. */
@media (max-width: 520px) {
    .supplier { display: none; }
    th, td { padding: 0.5rem 0.3rem; }
}