:root {
  --bg: #fbf8f5;
  --card-bg: #ffffff;
  --border: #e4dcd3;
  --text: #27231f;
  --muted: #6b6259;
  --accent: #d1a26f;
  --cta: #1e1c1a;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Sans", "Helvetica Neue", Arial,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

main.subscription {
  min-height: 100vh;
  padding: 32px 20px 48px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.subscription__mypage {
  margin-top: 16px;
}

.subscription__mypage-button {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  border-radius: 24px;
  border: 1px solid var(--cta);
  color: var(--cta);
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 16px;
  background: transparent;
  transition: background 0.2s ease, color 0.2s ease;
}

.subscription__mypage-button:focus-visible,
.subscription__mypage-button:hover {
  background: var(--cta);
  color: #fff;
}

.subscription__hero {
  text-align: center;
}

.subscription__title {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.08em;
}

.subscription__lead {
  margin: 12px auto 0;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 20rem;
}

.subscription__flavor-nav {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
}

.flavor-nav__toggle {
  width: 100%;
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text);
}

.flavor-nav__toggle::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text);
  border-bottom: 2px solid var(--text);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.flavor-nav__toggle[aria-expanded="true"]::after {
  transform: rotate(225deg);
}

.flavor-nav__toggle:focus-visible {
  outline: 2px solid var(--accent);
  border-radius: 12px;
  outline-offset: 4px;
}

.flavor-nav__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.flavor-nav__link {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 600;
  text-align: center;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.flavor-nav__link:active,
.flavor-nav__link:focus-visible,
.flavor-nav__link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.flavor-card {
  margin: 0;
}

.flavor-card__inner {
  background: var(--card-bg);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 24px 20px 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.flavor-card__label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin: 0 0 6px;
}

.flavor-card__title {
  margin: 0 0 16px;
  font-size: 1.3rem;
  line-height: 1.4;
}

.flavor-card__form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.select-wrapper {
  position: relative;
}

.select-wrapper::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 14px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.flavor-card__select {
  width: 100%;
  padding: 12px 44px 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 1rem;
  appearance: none;
}

.flavor-card__price {
  margin: 28px 0 28px;
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.flavor-card__price-current {
  display: inline-flex;
  align-items: flex-end;
  gap: 4px;
}

.flavor-card__price-value {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  display: inline-flex;
  align-items: flex-end;
}

.flavor-card__price-symbol,
.flavor-card__price-unit {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1;
  display: inline-flex;
  align-items: flex-end;
}

.flavor-card__price-regular {
  font-size: 1rem;
  color: #8f8680;
  text-decoration: line-through;
  text-decoration-color: #d94f4f;
  text-decoration-thickness: 2px;
  margin-left: 8px;
  line-height: 1;
  display: inline-flex;
  align-items: flex-end;
}

.flavor-card__features {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--text);
}

.flavor-card__features li {
  position: relative;
  padding-left: 28px;
  font-size: 0.95rem;
}

.flavor-card__features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--accent);
}

.flavor-card__features li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 11px;
  width: 6px;
  height: 9px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
}

.flavor-card__cta {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  background: var(--cta);
  color: #fff;
  border-radius: 20px;
  padding: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transition: opacity 0.2s ease;
}

.flavor-card__cta:focus-visible,
.flavor-card__cta:hover {
  opacity: 0.85;
}

.subscription-footer {
  padding: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

@media (min-width: 520px) {
  main.subscription {
    max-width: 500px;
    margin: 0 auto;
  }
}