/* buffer_calculator.css */

/* ── Container ───────────────────────────────────────────────────────── */
#bufferCalculatorContainer {
  font-family: sans-serif;
  max-width: 650px;
  margin: 40px auto;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  background-color: #fff;
}

/* ── Headings & Labels ───────────────────────────────────────────────── */
#bufferCalculatorContainer h2 {
  margin-bottom: 10px;
  font-size: 1.5em;
  text-align: center;
}

#bufferCalculatorContainer label {
  font-weight: bold;
  display: block;
  margin: 5px 0 5px;
}

/* ── Form Controls ───────────────────────────────────────────────────── */
/* Inputs & selects stay full-width */
#bufferCalculatorContainer input,
#bufferCalculatorContainer select {
  display: block;
  width: 100%;
  max-width: 650px;
  margin: 10px 0 15px;
  padding: 10px;
  font: 1em sans-serif;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  background-color: #fff;
}

/* Buttons (when NOT in a .button-group) full-width too */
#bufferCalculatorContainer button {
  display: block;
  width: 100%;
  max-width: 650px;
  margin: 10px auto 15px;
  padding: 10px;
  font: 1em sans-serif;
  background-color: #007bff;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color .3s ease;
}

#bufferCalculatorContainer button:hover {
  background-color: #0056b3;
}

/* ── Button Group ───────────────────────────────────────────────────── */
/* Wrapper to hold the three buttons side-by-side */
#bufferCalculatorContainer .button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin: 5px 0;
}

/* Override the full-width/block rules for buttons in the group */
#bufferCalculatorContainer .button-group button {
  display: inline-block;
  width: auto;
  max-width: none;
  margin: 0;
  flex: none;
  padding: 10px 15px;  /* you can adjust horizontal padding */
}

/* First button (Calculate) styling */
#bufferCalculatorContainer .button-group button:first-child {
  background-color: #007bff;
  color: #fff;
  border: none;
}

/* Other two buttons styling */
#bufferCalculatorContainer .button-group button:nth-child(n+2) {
  background-color: #fff;
  color: #333;
  border: 1px solid #ccc;
}

/* Hover states */
#bufferCalculatorContainer .button-group button:first-child:hover {
  background-color: #0056b3;
}

#bufferCalculatorContainer .button-group button:nth-child(n+2):hover {
  background-color: #f0f0f0;
}

/* ── Result Box ─────────────────────────────────────────────────────── */
#bufferCalculatorContainer #result {
  white-space: pre-wrap;
  font-size: 1.1em;
  font-weight: 500;
  margin-top: 20px;
  padding: 10px;
  background-color: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 5px;
}

/* ── Custom-MW Blocks ───────────────────────────────────────────────── */
#bufferCalculatorContainer #acidCustom,
#bufferCalculatorContainer #baseCustom {
  margin-top: 10px;
}

/* ── Select-text Fixes ───────────────────────────────────────────────── */
#bufferCalculatorContainer select {
  white-space: normal;
  height: auto;
}

#bufferCalculatorContainer select option {
  white-space: normal;
}

/* ── Grid Layout for Input + Unit Select ────────────────────────────── */
#bufferCalculatorContainer .field-group {
  display: grid;
  grid-template-columns: 1fr auto;
  column-gap: 10px;
  row-gap: 5px;
}

/* Label spans both columns */
#bufferCalculatorContainer .field-group label {
  grid-column: 1 / -1;
}

/* Unit dropdown auto-sizes and lives in column 2 */
#bufferCalculatorContainer .field-group select {
  width: auto !important;
  margin-bottom: 15px;
}