/* ============================================================
   COMPONENT: form
   BEM Block: .form
   ============================================================ */

/* ---- Block: form wrapper ---- */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ---- Element: field group (label + input + hint/error) ---- */
.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* ---- Element: label ---- */
.form__label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-700);
  display: block;
}

/* Required asterisk */
.form__label--required::after {
  content: " *";
  color: var(--color-danger-base);
}

/* ---- Element: text input, select, textarea ---- */
.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-surface);
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  -webkit-appearance: none;
  appearance: none;
}

.form__input:hover,
.form__select:hover,
.form__textarea:hover {
  border-color: var(--color-neutral-400);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-100);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-neutral-400);
}

/* ---- Element: select (custom arrow) ---- */
.form__select {
  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 fill='%2364748b' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-8);
  cursor: pointer;
}

/* ---- Element: textarea ---- */
.form__textarea {
  resize: vertical;
  min-height: 96px;
}

/* ---- Modifier: error state ---- */
.form__input--error,
.form__select--error,
.form__textarea--error {
  border-color: var(--color-danger-base);
}

.form__input--error:focus,
.form__select--error:focus,
.form__textarea--error:focus {
  box-shadow: 0 0 0 3px var(--color-danger-light);
}

/* ---- Element: error message ---- */
.form__error {
  font-size: var(--text-xs);
  color: var(--color-danger-base);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ---- Element: hint text ---- */
.form__hint {
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
}

/* ---- Element: form actions row ---- */
.form__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-2);
}

@media (min-width: 480px) {
  .form__actions {
    flex-direction: row;
    align-items: center;
    gap: var(--space-3);
  }
}

/* ---- Element: error summary (multiple errors) ---- */
.form__error-summary {
  background-color: var(--color-danger-light);
  border: 1px solid #fca5a5;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.form__error-summary-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-danger-dark);
  margin-bottom: var(--space-2);
}

.form__error-list {
  list-style: disc inside;
}

.form__error-list li {
  font-size: var(--text-sm);
  color: var(--color-danger-dark);
  padding: var(--space-1) 0;
}

/* ---- Element: two-column grid (desktop) ---- */
.form__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .form__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---- Modifier: form sizes ---- */
.form--narrow {
  max-width: 480px;
}

.form--wide {
  max-width: 720px;
}

/* ---- Element: divider ---- */
.form__divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-2);
}

/* ---- Element: section heading inside form ---- */
.form__section-title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-subtle);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}