/* パーソナルジム コアライン ― モバイルファースト（既定=スマホ、min-width で広げる）
   ブレークポイントは 600px と 1024px の2段階だけ。max-width の @media は使わない。 */

:root {
  --ink: #0b0d10;
  --lime: #d7ff3e;
  --face: #f2f3f5;
  --line: #d5d8dd;
  --ink-mid: #5a6069;
  --radius: 2px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  color: var(--ink);
  background: var(--face);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3 {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  line-height: 1.4;
}

p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 2px;
}

/* ===== ボタン ===== */

.btn {
  display: inline-block;
  border: none;
  border-radius: var(--radius);
  padding: 16px 28px;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  min-height: 44px;
  text-align: center;
}

.btn--primary {
  background: var(--lime);
  color: var(--ink);
}

.btn--secondary {
  background: transparent;
  border: 1px solid var(--ink);
  color: var(--ink);
}

.section--dark .btn--secondary {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

.btn--small {
  padding: 10px 18px;
  font-size: 13px;
}

.btn--block {
  display: block;
  width: 100%;
  margin-top: 20px;
}

.btn-text {
  display: inline-block;
  color: inherit;
  text-decoration: underline;
  font-size: 14px;
  padding: 8px 0;
  min-height: 44px;
}

/* ===== ヘッダー（常に暗い面。position: sticky; top: 0） ===== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--ink);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  text-decoration: none;
}

.logo__en {
  font-family: "Anton", sans-serif;
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lime);
}

.logo__jp {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 500;
  font-size: 9px;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.65);
}

.site-nav {
  display: none;
}

/* ===== ヒーロー ===== */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  margin: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 13, 16, 0.55);
}

.hero__body {
  position: relative;
  z-index: 1;
  padding: 24px 16px 40px;
  max-width: 620px;
}

.hero__kicker {
  font-size: 13px;
  margin-bottom: 14px;
}

.hero__title {
  font-size: 30px;
  line-height: 1.35;
  margin-bottom: 18px;
}

.hero__lead {
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 24px;
  max-width: 56ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}

/* ===== セクション共通 ===== */

.section {
  padding: 48px 0;
}

.section--dark {
  background: var(--ink);
  color: #fff;
}

.section--light {
  background: var(--face);
  color: var(--ink);
}

.section--center {
  text-align: center;
}

.section--center .cta-final__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
}

.section__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

.section__title {
  font-size: 24px;
  margin-bottom: 28px;
}

.section__lead {
  color: var(--ink-mid);
  margin-bottom: 28px;
  font-size: 14px;
}

.section--dark .section__lead {
  color: rgba(255, 255, 255, 0.7);
}

.section__footnote {
  margin-top: 20px;
  color: var(--ink-mid);
  font-size: 13px;
}

.section--dark .section__footnote {
  color: rgba(255, 255, 255, 0.7);
}

/* ===== 特徴（コアラインの3つのこと） ===== */

.features {
  display: grid;
  gap: 24px;
}

.features__item {
  /* 既定（JS無し）では常に見える。.js-ready が付いたときだけ opacity で隠す */
  opacity: 1;
  transform: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

html.js-ready .features__item {
  opacity: 0;
  transform: translateY(12px);
}

html.js-ready .features__item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.features__img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.features__num {
  font-family: "Anton", sans-serif;
  font-size: 28px;
  color: var(--lime);
  margin-bottom: 8px;
}

.features__heading {
  font-size: 18px;
  margin-bottom: 8px;
}

.features__body {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
}

/* ===== 通い方 ===== */

.steps {
  display: grid;
  gap: 24px;
}

.steps__item {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.steps__num {
  font-family: "Anton", sans-serif;
  font-size: 32px;
  /* 薄い透過ではなく ink-mid の実色を使う（axe の color-contrast 実測で必要） */
  color: var(--ink-mid);
  margin-bottom: 4px;
}

.steps__heading {
  font-size: 17px;
  margin-bottom: 8px;
}

.steps__body {
  color: var(--ink-mid);
  font-size: 14px;
}

/* ===== 料金（container query は price__grid の幅で判定） ===== */

.price__grid {
  container-type: inline-size;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.plan {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: #fff;
}

.plan--recommended {
  border-color: var(--ink);
}

.plan__badge {
  display: inline-block;
  background: var(--lime);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius);
  margin-bottom: 12px;
}

.plan__name {
  font-family: "Anton", sans-serif;
  font-size: 20px;
}

.plan__for {
  color: var(--ink-mid);
  font-size: 13px;
  margin-top: 4px;
}

.plan__price {
  margin-top: 16px;
}

.plan__count {
  font-size: 13px;
  color: var(--ink-mid);
  margin-bottom: 4px;
}

.plan__amount {
  font-family: "Anton", sans-serif;
  font-size: 20px;
}

.plan__num {
  font-size: 36px;
}

.plan__unit {
  font-size: 12px;
  color: var(--ink-mid);
  margin-top: 4px;
}

.price__notes {
  margin-top: 24px;
  color: var(--ink-mid);
  font-size: 13px;
  display: grid;
  gap: 4px;
}

/* 枠（price__grid）の幅が380pxを超えたら、金額を右へ回す。
   画面幅ではなく「置かれた枠の幅」で切り替わるので、このカードを他の幅の場所に
   置き直しても、この1か所を直すだけで済む */
@container (min-width: 380px) {
  .plan__head,
  .plan {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: start;
    column-gap: 16px;
  }

  .plan__badge {
    grid-column: 1 / -1;
  }

  .plan__price {
    margin-top: 0;
    text-align: right;
  }

  .plan__price ~ .btn--block {
    grid-column: 1 / -1;
  }
}

/* ===== 通っている人の声（横スライダー） ===== */

.voice-slider {
  position: relative;
}

.voice-slider__track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.voice-slider__item {
  flex: 0 0 100%;
  scroll-snap-align: start;
}

.voice-slider__item blockquote {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: #fff;
  height: 100%;
}

.voice-slider__item p {
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 16px;
}

.voice-slider__item cite {
  font-style: normal;
  font-size: 12px;
  color: var(--ink-mid);
}

.voice-slider__controls {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 16px;
}

.voice-slider__btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

/* ===== 場所と設備 ===== */

.access__photos {
  display: grid;
  gap: 16px;
  margin-bottom: 28px;
}

.access__photos img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
}

.overview {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.overview__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.overview__row dt {
  font-weight: 700;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

.overview__row dd {
  margin: 0;
  font-size: 14px;
}

/* ===== フッター ===== */

.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.75);
  text-align: center;
  padding: 40px 20px;
  font-size: 13px;
  display: grid;
  gap: 6px;
}

.site-footer__name {
  font-family: "Anton", sans-serif;
  font-size: 15px;
  color: #fff;
}

.site-footer__disclaimer {
  margin-top: 14px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

/* =========================================================
   1段階目：600px 以上
   ========================================================= */
@media (min-width: 600px) {
  .hero__title {
    font-size: 40px;
  }

  .section {
    padding: 64px 0;
  }

  .section__inner {
    padding: 0 24px;
  }

  .features,
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .access__photos {
    grid-template-columns: repeat(2, 1fr);
  }

  .voice-slider__item {
    flex-basis: calc(50% - 8px);
  }
}

/* =========================================================
   2段階目：1024px 以上
   ========================================================= */
@media (min-width: 1024px) {
  .site-header__inner {
    padding: 16px 40px;
  }

  .logo__en {
    font-size: 22px;
  }

  .logo__jp {
    font-size: 10px;
  }

  .site-nav {
    display: flex;
    gap: 28px;
    font-size: 14px;
  }

  .site-nav a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.8);
  }

  .site-nav a:hover {
    color: var(--lime);
  }

  .hero__title {
    font-size: 56px;
  }

  .hero__body {
    padding: 0 40px 64px;
    max-width: 720px;
  }

  .section {
    padding: 96px 0;
  }

  .section__inner {
    padding: 0 40px;
  }

  .section__title {
    font-size: 32px;
  }

  .features,
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps {
    grid-template-columns: repeat(4, 1fr);
  }

  .price__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .voice-slider__item {
    flex-basis: calc(33.333% - 11px);
  }
}

/* ===== 動きを止める（AIに書かせた部品：プロンプト仕様 §8 部品③） =====
   *全体へのanimation/transition無効化はここだけの例外的な書き方。他の場所では真似しない。 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js-ready .features__item {
    opacity: 1 !important;
    transform: none !important;
  }

  .voice-slider__track {
    scroll-behavior: auto !important;
  }
}