:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #16191d);
  --hint: var(--tg-theme-hint-color, #7d8895);
  --card: var(--tg-theme-secondary-bg-color, #f3f4f6);
  --accent: var(--tg-theme-button-color, #2f8f4e);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --line: color-mix(in srgb, var(--hint) 25%, transparent);
}

* { box-sizing: border-box; }

/* Author `display:` beats the UA's [hidden]{display:none}, so anything toggled
   with el.hidden stays visible once its class sets a display. Pin it here once
   rather than per-selector. */
[hidden] { display: none !important; }

body {
  margin: 0;
  padding: 12px 12px 88px;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

header { padding: 4px 4px 12px; }
h1 { margin: 0; font-size: 20px; }
.sub { margin: 4px 0 0; color: var(--hint); font-size: 13px; }

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 12px;
}

.field { display: block; margin-bottom: 10px; }
.field:last-child { margin-bottom: 0; }
.field > span {
  display: block;
  font-size: 12px;
  color: var(--hint);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

select {
  width: 100%;
  padding: 10px;
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  appearance: none;
}

.item {
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 10px;
}
.item-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.tracking {
  font-size: 12px;
  color: var(--hint);
  font-variant-numeric: tabular-nums;
}
.hold {
  font-size: 12px;
  color: var(--hint);
  display: flex;
  align-items: center;
  gap: 4px;
}
.purpose {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--hint);
}

/* Editable fields inside an item card. */
.sub-field { display: block; margin-bottom: 10px; }
.sub-field > span {
  display: block;
  font-size: 11px;
  color: var(--hint);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.item textarea,
.item input[type="text"] {
  width: 100%;
  padding: 9px 10px;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  resize: vertical;
}

/* Chosen suppliers: pick from the dropdown, each choice becomes a removable tag. */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tags:not(:empty) { margin-bottom: 8px; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px 6px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border-radius: 999px;
}
.tag-x {
  padding: 0 2px;
  font: inherit;
  font-size: 13px;
  line-height: 1;
  color: inherit;
  background: none;
  border: 0;
  opacity: .75;
  cursor: pointer;
}

#supplier-filter {
  width: 100%;
  padding: 10px;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.item select { background: var(--bg); }

.btn-link {
  margin-top: 8px;
  padding: 0;
  font: inherit;
  font-size: 13px;
  color: var(--hint);
  background: none;
  border: 0;
  text-decoration: underline;
  cursor: pointer;
}

.empty {
  text-align: center;
  padding: 32px 16px;
  color: var(--hint);
  white-space: pre-wrap;
}

.error {
  color: #c0392b;
  font-size: 13px;
  margin: 8px 4px;
  white-space: pre-wrap;
}

footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: var(--bg);
  border-top: 1px solid var(--line);
}

.btn-primary {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}
.btn-primary:disabled { opacity: .45; cursor: default; }