/* ── field label ── */
.field-label {
  font-size: 12px;
  color: #444;
  margin-bottom: 4px;
}

/* ── quick picks ── */
.quickpicks {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 20px;
}
.quickpicks button {
  background: #fff;
  border: 1px solid #00f;
  color: #00f;
  font-family: inherit;
  font-size: 12px;
  padding: 2px 10px;
  cursor: pointer;
  border-radius: 0;
}
.quickpicks button:hover { background: #00f; color: #fff; }
.quickpicks button.active { background: #00f; color: #fff; }

/* ── input row ── */
.field-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.field-row label {
  font-size: 13px;
  min-width: 120px;
}
.field-row input[type="number"],
.field-row input[type="text"] {
  width: 90px;
  padding: 3px 6px;
  font-size: 20px;
  font-family: inherit;
  border: 2px solid #00f;
  border-radius: 0;
  outline: none;
  -moz-appearance: textfield;
}
.field-row input::-webkit-outer-spin-button,
.field-row input::-webkit-inner-spin-button { -webkit-appearance: none; }
.field-row input:focus { background: #f0f0ff; }
.field-unit { font-size: 13px; color: #444; }

/* ── results table ── */
.results-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}
.results-table th {
  background: #000;
  color: #fff;
  text-align: left;
  padding: 6px 10px;
  font-weight: bold;
  font-size: 12px;
}
.results-table td {
  border: 1px solid #ccc;
  padding: 8px 10px;
}
.results-table tr:nth-child(even) td { background: #f8f8f8; }
.result-big {
  font-size: 22px;
  font-weight: bold;
  color: #000;
}
.result-unit { font-size: 12px; color: #666; }

/* ── diagram ── */
#diagram { margin: 8px 0 16px; }
.diagram-note {
  font-size: 11px;
  color: #666;
  margin-top: 4px;
}

/* ── info block (viewing distance, notes) ── */
.info-block {
  border: 1px solid #ccc;
  padding: 10px 12px;
  margin-bottom: 20px;
  background: #f9f9f9;
  font-size: 13px;
}
.info-block strong { color: #000; }