.hair-diagnosis {
  --bg: #f7f3ee;
  --paper: #fffaf4;
  --text: #2d2925;
  --muted: #81786f;
  --line: rgba(45, 41, 37, 0.14);
  --accent: #a9855a;
  --accent-dark: #7b5c38;
  --soft: #efe6dc;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(45, 41, 37, 0.12);

  position: relative;
  width: min(1120px, calc(100% - 32px));
  margin: 64px auto;
  padding: 68px 24px;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(169, 133, 90, 0.16), transparent 32%),
    radial-gradient(circle at 82% 82%, rgba(169, 133, 90, 0.10), transparent 30%),
    linear-gradient(135deg, #fbf8f4 0%, var(--bg) 48%, #f0e7dd 100%);
  border-radius: 42px;
  overflow: hidden;
  box-sizing: border-box;
}

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

.hair-diagnosis__bg {
  position: absolute;
  top: 4%;
  right: -2%;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(74px, 12vw, 172px);
  letter-spacing: 0.04em;
  line-height: 0.85;
  color: rgba(45, 41, 37, 0.035);
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
}

.hair-diagnosis__intro {
  position: relative;
  text-align: center;
  margin-bottom: 34px;
}

.hair-diagnosis__label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-dark);
  margin-bottom: 14px;
}

.hair-diagnosis__label::before,
.hair-diagnosis__label::after {
  content: "";
  display: block;
  width: 36px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.hair-diagnosis__title {
  margin: 0;
  font-family: Georgia, "Times New Roman", "Yu Mincho", serif;
  font-weight: 400;
  font-size: clamp(30px, 5vw, 58px);
  letter-spacing: 0.04em;
  line-height: 1.18;
}

.hair-diagnosis__lead {
  width: min(620px, 100%);
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 2;
}

.hair-diagnosis__layout {
  position: relative;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 28px;
}

.hair-diagnosis__side,
.hair-diagnosis__main {
  background: rgba(255, 250, 244, 0.86);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hair-diagnosis__side {
  padding: 30px 24px;
}

.hair-diagnosis__flow-title {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-dark);
  margin-bottom: 18px;
}

.hair-diagnosis__flow {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hair-diagnosis__flow-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  transition: 0.3s ease;
}

.hair-diagnosis__flow-item.is-active {
  color: var(--text);
  transform: translateX(4px);
}

.hair-diagnosis__flow-num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--soft);
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  transition: 0.3s ease;
}

.hair-diagnosis__flow-item.is-active .hair-diagnosis__flow-num {
  background: var(--accent);
  color: var(--white);
}

.hair-diagnosis__note {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}

.hair-diagnosis__main {
  min-height: 540px;
  padding: clamp(26px, 5vw, 54px);
  position: relative;
  overflow: hidden;
}

.hair-diagnosis__screen {
  display: none;
  animation: hairDiagnosisFadeUp 0.45s ease both;
}

.hair-diagnosis__screen.is-active {
  display: block;
}

@keyframes hairDiagnosisFadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hair-diagnosis__question-label {
  color: var(--accent-dark);
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0.16em;
  font-size: 12px;
  margin-bottom: 12px;
}

.hair-diagnosis__question-title {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.45;
}

.hair-diagnosis__question-text {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 30px;
}

.hair-diagnosis__choices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.hair-diagnosis__choice {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  min-height: 82px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: 0.25s ease;
}

.hair-diagnosis__choice:hover {
  border-color: rgba(169, 133, 90, 0.5);
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.78);
}

.hair-diagnosis__choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.hair-diagnosis__check {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid rgba(45, 41, 37, 0.28);
  background: var(--white);
  margin-top: 2px;
  display: grid;
  place-items: center;
  transition: 0.25s ease;
}

.hair-diagnosis__check::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  transform: scale(0);
  transition: 0.25s ease;
}

.hair-diagnosis__choice input:checked + .hair-diagnosis__check {
  border-color: var(--accent);
  box-shadow: 0 0 0 5px rgba(169, 133, 90, 0.14);
}

.hair-diagnosis__choice input:checked + .hair-diagnosis__check::before {
  transform: scale(1);
}

.hair-diagnosis__choice-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 5px;
}

.hair-diagnosis__choice-desc {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.hair-diagnosis__alert {
  min-height: 22px;
  margin-top: 16px;
  color: #9d4b35;
  font-size: 13px;
}

.hair-diagnosis__buttons {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
}

.hair-diagnosis__button {
  appearance: none;
  border: 0;
  min-width: 170px;
  padding: 15px 24px;
  border-radius: 999px;
  background: var(--text);
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: 0.25s ease;
}

.hair-diagnosis__button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(45, 41, 37, 0.18);
}

.hair-diagnosis__button--sub,
.hair-diagnosis__button--disabled {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  box-shadow: none;
}

.hair-diagnosis__button--accent {
  background: var(--accent);
}

.hair-diagnosis__result-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: end;
  margin-bottom: 24px;
}

.hair-diagnosis__selected-count {
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent-dark);
  font-size: 12px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.hair-diagnosis__result-list {
  display: grid;
  gap: 16px;
}

.hair-diagnosis__menu {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.62);
}

.hair-diagnosis__rank {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--text);
  color: var(--white);
  display: grid;
  place-items: center;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
}

.hair-diagnosis__menu-title {
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

.hair-diagnosis__menu-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.hair-diagnosis__menu-meta-item {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(169, 133, 90, 0.12);
  color: var(--accent-dark);
  font-size: 12px;
  line-height: 1;
}

.hair-diagnosis__menu-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.hair-diagnosis__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.hair-diagnosis__tag {
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent-dark);
  font-size: 11px;
}

.hair-diagnosis__reserve-area {
  margin-top: 24px;
  text-align: center;
}

.hair-diagnosis__reserve-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 260px;
  min-height: 54px;
  padding: 15px 28px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--white);
  font-size: 14px;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: 0.25s ease;
}

.hair-diagnosis__reserve-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(45, 41, 37, 0.18);
}

.hair-diagnosis__omakase {
  margin-top: 22px;
  padding: 26px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(45, 41, 37, 0.94), rgba(77, 66, 56, 0.9));
  color: var(--white);
}

.hair-diagnosis__omakase-title {
  margin-bottom: 10px;
  font-size: 21px;
  font-weight: 500;
}

.hair-diagnosis__omakase-text {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  line-height: 1.9;
}

@media (max-width: 860px) {
  .hair-diagnosis {
    width: min(100% - 24px, 1120px);
    margin: 32px auto;
    padding: 46px 14px;
  }

  .hair-diagnosis__layout {
    grid-template-columns: 1fr;
  }

  .hair-diagnosis__side {
    padding: 18px;
  }

  .hair-diagnosis__flow {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .hair-diagnosis__flow-item {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    font-size: 11px;
  }

  .hair-diagnosis__flow-item.is-active {
    transform: none;
  }

  .hair-diagnosis__note {
    display: none;
  }

  .hair-diagnosis__choices {
    grid-template-columns: 1fr;
  }

  .hair-diagnosis__result-head {
    grid-template-columns: 1fr;
  }

  .hair-diagnosis__buttons {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .hair-diagnosis__button {
    width: 100%;
  }

  .hair-diagnosis__menu {
    grid-template-columns: 1fr;
  }

  .hair-diagnosis__reserve-button {
    width: 100%;
  }
}

/* ====== 言語切り替えボタン ====== */
.hair-diagnosis__lang {
  display: inline-flex;
  align-items: center;
  background: #f3ede2;             /* 内側のベース色（ベージュ） */
  border: 1px solid #d9c9ad;        /* 縁取り */
  border-radius: 999px;             /* ピル型 */
  padding: 4px;
  gap: 2px;
  box-shadow: 0 1px 3px rgba(74, 59, 42, 0.08);
  position: relative;
}

.hair-diagnosis__lang-button {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  background: transparent;
  color: #8a7a5f;                   /* 非アクティブ：薄いブラウン */
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 6px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, transform 0.15s ease;
  font-family: inherit;
  min-width: 48px;
  line-height: 1;
}

.hair-diagnosis__lang-button:hover {
  color: #4a3b2a;                   /* ホバー時は濃く */
}

.hair-diagnosis__lang-button:active {
  transform: scale(0.96);            /* タップで少し縮む */
}

.hair-diagnosis__lang-button.is-active {
  background: #4a3b2a;               /* 濃いブラウン */
  color: #fff;
  box-shadow: 0 1px 4px rgba(74, 59, 42, 0.25);
}

.hair-diagnosis__lang-button:focus-visible {
  outline: 2px solid #b8956a;
  outline-offset: 2px;
}

/* 配置（診断ボックスの右上に置く例） */
.hair-diagnosis {
  position: relative;
}
.hair-diagnosis__lang {
  position: absolute;
  top: 16px;
  right: 16px;
}

/* スマホ用調整 */
@media (max-width: 600px) {
  .hair-diagnosis__lang {
    top: 12px;
    right: 12px;
    padding: 3px;
  }
  .hair-diagnosis__lang-button {
    padding: 5px 14px;
    font-size: 12px;
    min-width: 42px;
  }
}