h1 {
  text-align: center;
  font-size: 50px;
}

body {
  margin: 0;
  overflow-x: hidden;
}

.invalid-feedback {
  display: none; 
  color: #dc3545 !important; 
  padding-left: 5px;
  margin-top: -10px;
  text-align: left;
}


.was-validated input:invalid,
.was-validated select:invalid,
.was-validated textarea:invalid {
  border: 1px solid #dc3545; 
}

.was-validated input:invalid + .invalid-feedback,
.was-validated select:invalid + .invalid-feedback,
.was-validated textarea:invalid + .invalid-feedback {
  display: block;
}

#reactions-error {
  display: none;
  text-align: left;
  padding-top: 10px;
}

.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 20px;
  padding-top: 20px;
}

/* tendina iniziale */
.accordion-toggle {
  background-color: #8972a5cc;
  color: #fff;
  padding: 10px 15px;
  font-size: 16px;
  border: none;
  cursor: pointer;
  margin: 20px;
  border-radius: 5px;
}

/* --------- GRID GENERALI --------- */
.grid-form {
  display: flex;
  justify-content: space-between;
  max-width: 800px;
  margin: 0 auto 25px;
}

.grid-form div {
  display: flex;
  flex-direction: column;
  font-size: 22px;
}

.grid-form div label {
  margin-bottom: -15px;
}

/* --------- SUBMIT SMILES --------- */
.hidden {
  display: none !important;
}

#submit-smiles-section {
  margin-top: 50px;
  text-align: center;
}

.form-container * {
  color: #ffffff;
}


.form-container {
  border-radius: 20px;
  background-color: #f4f4f4;
  width: 46%;
  margin: 50px auto;
}

.smiles-info {
  font-size: 16px;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
  text-align: center;
}

.smiles-label {
  display: block;
  margin-bottom: 10px;
}

.smiles-code-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: 8px;
}

.copy-btn .material-symbols-outlined {
  font-size: 20px;
  color: #bdc5f2;
  transition: color 0.2s ease;
}

.copy-btn:hover .material-symbols-outlined {
  color: #8489a7;
}

.smiles-form {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 15px;
  max-width: 600px;
  margin: 0 auto;
}

.smiles-form input,
.smiles-form select {
  width: 100%;
  padding: 14px;
  border: 0px !important;
  border-radius: 6px;
  font-size: 16px;
  background: #0b0f28;
  box-sizing: border-box;
}

input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus, 
input:-webkit-autofill:active{
    -webkit-box-shadow: 0 0 0 30px #0b0f28 inset !important;
    -webkit-text-fill-color: white !important;
}

.smiles-form input, .smiles-form select :active {
  border: 0px !important;
}

/*  REACTIONS: fieldset + griglia */
.reactions-fieldset {
  border: 1px solid #ddd;
  border-radius: 12px;
  text-align: left;
  width: 100%;
  max-width: 650px;
  margin: 0 auto;
  padding: 16px;
  box-sizing: border-box;
}

.reactions-fieldset legend {
  font-weight: 600;
  font-size: 16px;
  padding: 0 8px;
  margin-bottom: 10px;
  text-align: left;
}

.reactions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  justify-items: start;
  align-items: center;
  gap: 10px 24px;
}

.rxn-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 4px 2px;
  font-size: 14px;
  line-height: 1.3;
  cursor: pointer;
  white-space: nowrap;
}

.rxn-item input[type="checkbox"] {
  transform: scale(1.25);
  accent-color: #6865f2;
  margin: 0;
}

.rxn-item input[type="checkbox"]:hover {
  accent-color: #7661f3;
}

/* 3 colonne fisse su desktop grande */
@media (min-width: 980px) {
  .reactions-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* --------- Maximum level --------- */
.select-label {
  margin: 6px 0 4px;
  text-align: left;
  font-size: 14px;  
}

.select-label {
  margin: 0 auto;
}

.submit-btn {
  width: 30%;
  margin: 0 auto;
}

.maximum {
  width: 40% !important;
  margin: 0 auto;
}