/* ── Form Layout ── */

.form {
  max-width: 720px;
  margin-inline: auto;
}

.form__section {
  margin-bottom: var(--space-xl);
}

.form__section-title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--gris-clair);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form__row--full {
  grid-template-columns: 1fr;
}

.form__row--three {
  grid-template-columns: 1fr 1fr 1fr;
}

/* ── Field ── */

.field {
  margin-bottom: var(--space-md);
}

.field__label {
  display: block;
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--bleu-profond);
  margin-bottom: 0.4em;
}

.field__label--required::after {
  content: ' *';
  color: var(--corail);
}

.field__input,
.field__select,
.field__textarea {
  width: 100%;
  padding: 0.75em 1em;
  font-size: var(--fs-body);
  color: var(--bleu-profond);
  background: var(--blanc-casse);
  border: 1.5px solid var(--gris-clair);
  border-radius: var(--radius-md);
  transition:
    border-color var(--duration-fast),
    box-shadow var(--duration-fast);
}

.field__input:focus,
.field__select:focus,
.field__textarea:focus {
  outline: none;
  border-color: var(--bleu-mer);
  box-shadow: 0 0 0 3px rgba(27, 107, 147, 0.12);
}

.field__input::placeholder,
.field__textarea::placeholder {
  color: #A0AEC0;
}

.field__textarea {
  min-height: 120px;
  resize: vertical;
}

.field__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%234A5568' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1em center;
  padding-right: 2.5em;
}

.field__hint {
  font-size: var(--fs-xs);
  color: var(--gris-texte);
  margin-top: 0.3em;
}

/* ── Validation States ── */

.field--error .field__input,
.field--error .field__select,
.field--error .field__textarea {
  border-color: var(--corail);
  box-shadow: 0 0 0 3px rgba(var(--corail-rgb), 0.1);
}

.field--success .field__input,
.field--success .field__select,
.field--success .field__textarea {
  border-color: #38A169;
  box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.1);
}

.field__error {
  display: none;
  font-size: var(--fs-xs);
  color: var(--corail);
  margin-top: 0.3em;
  align-items: center;
  gap: 0.3em;
}

.field--error .field__error {
  display: flex;
}

.field__error-icon {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

/* ── Radio & Checkbox ── */

.radio-group,
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.radio-group--vertical,
.checkbox-group--vertical {
  flex-direction: column;
}

.radio,
.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.6em;
  cursor: pointer;
  font-size: var(--fs-body);
}

.radio input,
.checkbox input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio__mark {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--gris-clair);
  border-radius: var(--radius-full);
  transition:
    border-color var(--duration-fast),
    background-color var(--duration-fast);
  position: relative;
  margin-top: 2px;
}

.radio input:checked + .radio__mark {
  border-color: var(--corail);
}

.radio input:checked + .radio__mark::after {
  content: '';
  position: absolute;
  inset: 3px;
  background: var(--corail);
  border-radius: var(--radius-full);
}

.radio input:focus-visible + .radio__mark {
  outline: 2px solid var(--corail);
  outline-offset: 2px;
}

.checkbox__mark {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--gris-clair);
  border-radius: var(--radius-sm);
  transition:
    border-color var(--duration-fast),
    background-color var(--duration-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.checkbox input:checked + .checkbox__mark {
  background: var(--corail);
  border-color: var(--corail);
}

.checkbox input:checked + .checkbox__mark::after {
  content: '';
  width: 10px;
  height: 6px;
  border: 2px solid white;
  border-top: none;
  border-right: none;
  transform: rotate(-45deg) translateY(-1px);
}

.checkbox input:focus-visible + .checkbox__mark {
  outline: 2px solid var(--corail);
  outline-offset: 2px;
}

/* ── Form Submit ── */

.form__submit {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.form__submit-note {
  font-size: var(--fs-xs);
  color: var(--gris-texte);
  text-align: center;
}

/* ── Form Messages ── */

.form-message {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  display: none;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.form-message--success {
  display: flex;
  background: rgba(56, 161, 105, 0.08);
  color: #276749;
  border: 1px solid rgba(56, 161, 105, 0.2);
}

.form-message--error {
  display: flex;
  background: rgba(var(--corail-rgb), 0.08);
  color: #9B2C2C;
  border: 1px solid rgba(var(--corail-rgb), 0.2);
}