.reg-hero {
  background: var(--color-primary);
  height: 160px;
  margin-top: 72px; /* 固定ヘッダーの高さ分だけ下にずらす */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.reg-hero__step {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

.reg-hero__title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.reg-hero__sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
}

.reg-main {
  background: var(--color-bg-light);
  padding: 80px 0;
}

.reg-main__inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 120px;
  display: grid;
  grid-template-columns: 680px 1fr;
  gap: 80px;
  align-items: start;
}

.reg-form-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px;
}

.reg-form-card__title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.reg-form-card__login-hint {
  font-size: 14px;
  color: #666;
  margin-bottom: 32px;
}

.reg-form-card__login-hint a {
  color: var(--color-secondary);
  font-weight: 700;
}

.sns-btns {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.sns-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 15px;
  font-weight: 700;
  height: 52px;
  border-radius: var(--radius-md);
  width: 100%;
  cursor: pointer;
  transition: background var(--transition);
}

.sns-btn:hover {
  background: var(--color-bg-light);
}

.sns-btn__icon {
  font-size: 20px;
}

/* ::before / ::after で左右に線を引いて「または」を囲む */
.divider {
  text-align: center;
  font-size: 14px;
  color: #aaa;
  position: relative;
  margin: 24px 0;
}

.divider::before,
.divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 38%;
  height: 1px;
  background: var(--color-border);
}

.divider::before { left: 0; }
.divider::after { right: 0; }

.form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group--row {
  flex-direction: row;
  gap: 16px;
}

.form-group--row .form-group {
  flex: 1;
}

.form-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-label__required {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 3px;
}

.form-input {
  height: 52px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 16px;
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-white);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-input:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(45, 125, 210, 0.12);
}

.form-input::placeholder {
  color: #bbb;
}

.form-input--password {
  padding-right: 48px;
}

.password-wrapper {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  color: #aaa;
  transition: color var(--transition);
}

.password-toggle:hover {
  color: var(--color-text);
}

.form-hint {
  font-size: 12px;
  color: #888;
}

/* SVGの矢印アイコンをインラインdata URIで設定しているためappearance: noneで標準矢印を非表示にする */
.form-select {
  height: 52px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 16px;
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-white);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
  width: 100%;
  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 1l5 5 5-5' stroke='%23aaa' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.form-select:focus {
  border-color: var(--color-secondary);
}

.form-group--dob {
  display: grid;
  grid-template-columns: 35% 30% 30%;
  gap: 8px;
}

.radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.radio-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--color-text);
}

.radio-item input[type="radio"] {
  accent-color: var(--color-secondary);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.agree-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

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

.agree-row a {
  color: var(--color-secondary);
  font-weight: 700;
}

.submit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  height: 56px;
  border-radius: var(--radius-md);
  width: 100%;
  border: none;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition);
  margin-top: 8px;
}

.submit-btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.form-footer-link {
  text-align: center;
  font-size: 14px;
  color: #666;
  margin-top: 16px;
}

.form-footer-link a {
  color: var(--color-secondary);
  font-weight: 700;
}

.reg-merit {
  padding: 48px 0 48px 0;
}

.reg-merit__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 32px;
}

.merit-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.merit-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.merit-item__icon {
  width: 36px;
  height: 36px;
  background: rgba(45, 125, 210, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-size: 18px;
  flex-shrink: 0;
}

.merit-item__content {
  flex: 1;
}

.merit-item__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.merit-item__desc {
  font-size: 13px;
  color: #777;
  line-height: 1.7;
}

.merit-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 24px 0;
}

.security-badge {
  text-align: center;
  font-size: 13px;
  color: #888;
  line-height: 2;
}

.reg-stat {
  text-align: center;
  margin-top: 24px;
}

.reg-stat__number {
  font-family: var(--font-en);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
}

.reg-stat__label {
  font-size: 14px;
  color: #888;
  margin-top: 4px;
}

.btn--disabled {
  opacity: .5;
  pointer-events: none;
}

@media (max-width: 768px) {
  .reg-hero {
    height: 120px;
  }

  .reg-hero__title {
    font-size: 24px;
  }

  .reg-hero__sub {
    font-size: 14px;
  }

  .reg-main {
    padding: 40px 0;
  }

  .reg-main__inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 16px;
  }

  .reg-form-card {
    padding: 24px;
  }

  .reg-form-card__title {
    font-size: 22px;
  }

  .form-group--row {
    flex-direction: column;
  }

  .radio-group {
    grid-template-columns: 1fr;
  }

  .reg-merit {
    padding: 0;
  }
}