.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
}

.form-required {
  color: var(--color-accent);
  margin-left: var(--space-1);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,26,26,0.08);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6b6b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
  cursor: pointer;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-checkbox a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ラジオボタン群（お問い合わせ種別など） */
.form-radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.form-radio {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
}

.form-radio input[type="radio"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--color-cyan);
  cursor: pointer;
}

/* 送信完了メッセージ */
.form-thanks {
  display: none;
  text-align: left;
  padding: var(--space-16) 0;
}

.form-thanks.is-visible {
  display: block;
}

.form-thanks h2 {
  font-size: var(--text-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.form-thanks p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.9;
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* お問い合わせフォーム用コンテナの左寄せ調整 */
.contact-container {
  width: auto;
  margin-left: var(--gutter);
  margin-right: var(--gutter);
  padding-left: 0;
}