/* ==========================================================================
   Object / Component
   再利用可能なUIパーツ
   ========================================================================== */

/* --------------------------------------------------------------------------
   Skip link
   -------------------------------------------------------------------------- */

.c-skip-link {
  position: fixed;
  inset-block-start: 0.5rem;
  inset-inline-start: 0.5rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-text);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-s);
  transform: translateY(-150%);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.c-skip-link:focus-visible {
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Logo（2段組みの文字ロゴ： ALIGN / PERSONAL GYM）
   -------------------------------------------------------------------------- */

.c-logo {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.c-logo__main {
  font-family: var(--font-en);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--color-text);
}

.c-logo__sub {
  font-family: var(--font-en);
  font-size: 0.625rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.2em;
  color: var(--color-text-soft);
}

/* --------------------------------------------------------------------------
   Section label（英字ラベル： 01 / CONCEPT）
   -------------------------------------------------------------------------- */

.c-section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-en);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  /* Soft Gray背景（.l-section--alt）でも通常文字のコントラスト基準（4.5:1）を
     満たすよう、標準のAccent ColorではなくAccent Darkを使用する。 */
  color: var(--color-accent-dark);
  margin-block-end: 0.75rem;
}

.c-section-label::before {
  content: "";
  width: 1.5rem;
  height: 1px;
  background-color: currentColor;
}

.l-section--dark .c-section-label {
  color: #9fb8b2;
}

/* --------------------------------------------------------------------------
   Heading
   -------------------------------------------------------------------------- */

.c-heading-lead {
  font-size: var(--fs-lead);
  line-height: 1.75;
  color: var(--color-text-soft);
  margin-block-start: 1.25rem;
}

.l-section--dark .c-heading-lead {
  color: rgba(247, 246, 242, 0.78);
}

/* --------------------------------------------------------------------------
   Button
   -------------------------------------------------------------------------- */

.c-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  font-family: var(--font-jp);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background-color var(--duration-fast) var(--ease-standard),
    color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.c-button--primary {
  background-color: var(--color-accent);
  color: var(--color-text-on-dark);
}

.c-button--primary:hover,
.c-button--primary:focus-visible {
  background-color: var(--color-accent-dark);
}

.c-button:active {
  transform: scale(0.98);
}

@media (prefers-reduced-motion: reduce) {
  .c-button:active {
    transform: none;
  }
}

.c-button--block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Hamburger toggle
   -------------------------------------------------------------------------- */

.c-menu-toggle {
  position: relative;
  z-index: 110;
  width: 2.75rem;
  height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-s);
}

@media (min-width: 64rem) {
  .c-menu-toggle {
    display: none;
  }
}

.c-menu-toggle__icon,
.c-menu-toggle__icon::before,
.c-menu-toggle__icon::after {
  width: 1.375rem;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 999px;
  transition: transform var(--duration-fast) var(--ease-standard),
    opacity var(--duration-fast) var(--ease-standard);
}

.c-menu-toggle__icon {
  position: relative;
}

.c-menu-toggle__icon::before,
.c-menu-toggle__icon::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
}

.c-menu-toggle__icon::before {
  transform: translateY(-6px);
}

.c-menu-toggle__icon::after {
  transform: translateY(6px);
}

.c-menu-toggle[aria-expanded="true"] .c-menu-toggle__icon {
  background-color: transparent;
}

.c-menu-toggle[aria-expanded="true"] .c-menu-toggle__icon::before {
  transform: translateY(0) rotate(45deg);
}

.c-menu-toggle[aria-expanded="true"] .c-menu-toggle__icon::after {
  transform: translateY(0) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Nav link
   -------------------------------------------------------------------------- */

.c-nav-link {
  position: relative;
  display: inline-block;
  padding-block: 0.125rem;
}

.c-nav-link::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-end: -2px;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.c-nav-link:hover::after,
.c-nav-link:focus-visible::after {
  transform: scaleX(1);
}

/* --------------------------------------------------------------------------
   Card
   -------------------------------------------------------------------------- */

.c-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(1.5rem, 2vw, 2rem);
  background-color: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-l);
}

.c-card__index {
  font-family: var(--font-en);
  font-size: var(--fs-label);
  font-weight: 700;
  color: var(--color-accent-dark);
}

.c-card__title {
  font-size: var(--fs-h3);
}

.c-card__text {
  color: var(--color-text-soft);
}

/* --------------------------------------------------------------------------
   Icon list（Problem セクション等）
   -------------------------------------------------------------------------- */

.c-icon-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.c-icon-list__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding-block: 1.1rem;
  border-block-end: 1px solid var(--color-border-soft);
}

.c-icon-list__icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-accent-dark);
}

.c-icon-list__text {
  padding-block-start: 0.1rem;
}

/* --------------------------------------------------------------------------
   Media frame（object-fit で写真を扱う共通枠）
   -------------------------------------------------------------------------- */

.c-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-l);
  background-color: var(--color-bg-alt);
}

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

.c-media--portrait {
  aspect-ratio: 3 / 4;
}

.c-media--hero {
  aspect-ratio: 4 / 5;
}

.c-media--landscape {
  aspect-ratio: 3 / 2;
}

/* --------------------------------------------------------------------------
   Training card
   -------------------------------------------------------------------------- */

.c-training-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.c-training-card__label {
  font-family: var(--font-en);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-accent-dark);
}

.c-training-card__title {
  font-size: var(--fs-h3);
}

.c-training-card__text {
  color: var(--color-text-soft);
}

/* --------------------------------------------------------------------------
   Trainer
   -------------------------------------------------------------------------- */

.c-trainer__name {
  font-size: var(--fs-h2);
  margin-block-end: 1.25rem;
}

.c-trainer__lead {
  font-size: var(--fs-lead);
  margin-block-end: 1.5rem;
}

.c-trainer__body > * + * {
  margin-block-start: 1.1rem;
}

.c-trainer__body {
  color: var(--color-text-soft);
}

/* --------------------------------------------------------------------------
   Voice（testimonial）
   -------------------------------------------------------------------------- */

.c-voice-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: clamp(1.5rem, 2vw, 2rem);
  background-color: var(--color-white);
  border-radius: var(--radius-l);
  border: 1px solid var(--color-border-soft);
}

.c-voice-card__quote {
  font-size: 1.0625rem;
  line-height: 1.9;
}

.c-voice-card__quote::before {
  content: "“";
}

.c-voice-card__quote::after {
  content: "”";
}

.c-voice-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--fs-small);
  color: var(--color-text-soft);
  padding-block-start: 0.5rem;
  border-block-start: 1px solid var(--color-border-soft);
}

.c-voice-card__meta strong {
  color: var(--color-text);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Plan（料金）
   -------------------------------------------------------------------------- */

.c-plan-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: clamp(1.5rem, 2vw, 2rem);
  background-color: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-l);
  text-align: center;
}

.c-plan-card--featured {
  background-color: var(--color-text);
  color: var(--color-text-on-dark);
  border-color: var(--color-text);
}

.c-plan-card__name {
  font-family: var(--font-en);
  font-size: var(--fs-label);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-accent-dark);
}

.c-plan-card--featured .c-plan-card__name {
  color: #9fb8b2;
}

.c-plan-card__price {
  font-size: clamp(1.75rem, 1.5rem + 1vw, 2.25rem);
  font-weight: 700;
}

.c-plan-card__price small {
  font-size: 0.9375rem;
  font-weight: 500;
  margin-inline-start: 0.25rem;
}

.c-plan-card__desc {
  color: var(--color-text-soft);
  font-size: var(--fs-small);
}

.c-plan-card--featured .c-plan-card__desc {
  color: rgba(247, 246, 242, 0.78);
}

/* --------------------------------------------------------------------------
   Flow（手順）
   -------------------------------------------------------------------------- */

.c-flow-list {
  display: flex;
  flex-direction: column;
  counter-reset: flow;
}

.c-flow-list__item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding-block: 1.75rem;
  border-block-end: 1px solid var(--color-border-soft);
}

.c-flow-list__item:first-child {
  padding-block-start: 0;
}

.c-flow-list__item:last-child {
  border-block-end: none;
  padding-block-end: 0;
}

.c-flow-list__number {
  counter-increment: flow;
  font-family: var(--font-en);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent-dark);
}

.c-flow-list__number::before {
  content: counter(flow, decimal-leading-zero);
}

.c-flow-list__title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-block-end: 0.4rem;
}

.c-flow-list__text {
  color: var(--color-text-soft);
}

/* --------------------------------------------------------------------------
   Accordion（FAQ / native details）
   -------------------------------------------------------------------------- */

.c-accordion {
  border-block-start: 1px solid var(--color-border-soft);
}

.c-accordion__item {
  border-block-end: 1px solid var(--color-border-soft);
}

.c-accordion__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.c-accordion__summary::-webkit-details-marker {
  display: none;
}

.c-accordion__q-mark {
  flex-shrink: 0;
  font-family: var(--font-en);
  color: var(--color-accent-dark);
}

.c-accordion__question {
  flex-grow: 1;
}

.c-accordion__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-accent-dark);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.c-accordion__item[open] > .c-accordion__summary .c-accordion__icon {
  transform: rotate(45deg);
}

.c-accordion__panel {
  padding-block-end: 1.5rem;
  color: var(--color-text-soft);
  max-width: 42rem;
}

/* JavaScript有効時、開閉アニメーションを滑らかにするための状態クラス。
   js-accordion.js が付与し、details/summary のネイティブ機能は常に維持する。 */
.c-accordion__item.js-is-animating {
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Form
   -------------------------------------------------------------------------- */

.c-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.c-form__row {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 40rem) {
  .c-form__row--2 {
    grid-template-columns: 1fr 1fr;
  }
}

.c-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.c-field__label {
  font-size: var(--fs-small);
  font-weight: 700;
}

.c-field__required {
  color: var(--color-accent-dark);
  font-weight: 700;
  margin-inline-start: 0.25rem;
}

.c-field__hint {
  font-size: var(--fs-small);
  color: var(--color-text-soft);
}

.c-field__input,
.c-field__textarea,
.c-field__select {
  width: 100%;
  padding: 0.85rem 1rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  font-size: 1rem;
}

.c-field__textarea {
  resize: vertical;
  min-height: 8rem;
}

.c-field__input:focus-visible,
.c-field__textarea:focus-visible,
.c-field__select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* :user-invalid は「ユーザーが一度操作した後に無効な値である」場合にのみ一致するため、
   未入力の必須項目を開いた直後からエラー表示してしまう問題を避けられる。 */
.c-field__input:user-invalid,
.c-field__textarea:user-invalid {
  border-color: #b3543f;
}

.c-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: var(--fs-small);
}

.c-checkbox__input {
  margin-block-start: 0.2rem;
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--color-accent);
  flex-shrink: 0;
}

.c-form__notice {
  padding: 1rem 1.25rem;
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-m);
  font-size: var(--fs-small);
  color: var(--color-text-soft);
  line-height: 1.7;
}

.c-form__status {
  font-size: var(--fs-small);
  font-weight: 700;
}

.c-form__status[data-state="success"] {
  color: var(--color-accent-dark);
}

/* --------------------------------------------------------------------------
   Note / Disclaimer
   -------------------------------------------------------------------------- */

.c-note {
  margin-block-start: 1rem;
  font-size: var(--fs-small);
  color: var(--color-text-soft);
}

/* --------------------------------------------------------------------------
   Access info list
   -------------------------------------------------------------------------- */

.c-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.c-info-list__row {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding-block: 0.9rem;
  border-block-end: 1px solid var(--color-border-soft);
}

.c-info-list__term {
  font-family: var(--font-en);
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--color-accent-dark);
}

/* --------------------------------------------------------------------------
   Map
   -------------------------------------------------------------------------- */

.c-map {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-l);
  aspect-ratio: 4 / 3;
  background-color: var(--color-bg-alt);
}

@media (min-width: 60rem) {
  .c-map {
    aspect-ratio: 16 / 10;
  }
}

.c-map iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* --------------------------------------------------------------------------
   Reveal animation（控えめなスクロールアニメーション）
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  .js-reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 640ms var(--ease-standard), transform 640ms var(--ease-standard);
  }

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