/* ==========================================================================
   「どんぐりの森について」ページ固有スタイル
   共通のヘッダー／フッター／ボタン／タイポグラフィは style.css を使用
   ========================================================================== */

.ab-container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.ab-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- 仮文字（レイアウト確認用）------------------------------------------ */
.ab-ph {
  color: #a9b5aa;
  font-size: 0.95rem;
  line-height: 1.9;
  letter-spacing: 0.04em;
  word-break: break-all;
  user-select: none;
}

.ab-ph__line {
  display: block;
}

.ab-ph--para + .ab-ph--para {
  margin-top: 1em;
}

.ab-badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 2px 12px;
  border: 1px dashed var(--color-accent-gold-dark);
  border-radius: 999px;
  color: var(--color-accent-gold-dark);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.ab-note {
  margin-top: 24px;
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

section[class^="ab-"] {
  padding: var(--section-gap-sp) 0;
}

@media (min-width: 900px) {
  section[class^="ab-"] {
    padding: var(--section-gap-pc) 0;
  }
}

/* --- パンくず ---------------------------------------------------------- */
.ab-breadcrumb {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 14px 24px;
  font-size: 0.85rem;
}

.ab-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ab-breadcrumb li + li::before {
  content: "＞";
  margin: 0 10px;
  color: var(--color-text-sub);
  font-size: 0.75rem;
}

.ab-breadcrumb a {
  display: inline-block;
  padding: 10px 0;
  color: var(--color-green-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.ab-breadcrumb [aria-current="page"] {
  color: var(--color-text-sub);
}

/* --- ページヒーロー ---------------------------------------------------- */
section.ab-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(300px, 42vw, 480px);
  padding: 0;
  overflow: hidden;
  color: var(--color-text-on-dark);
  background-color: var(--color-green-deep-dark);
}

.ab-hero__media {
  position: absolute;
  inset: 0;
}

.ab-hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
}

.ab-hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 32, 26, 0.78) 0%, rgba(20, 32, 26, 0.58) 38%, rgba(20, 32, 26, 0) 75%);
}

.ab-hero__content {
  position: relative;
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.ab-hero .section-eyebrow--light {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  background-color: rgba(20, 32, 26, 0.72);
  color: #f3dfaa;
}

.ab-hero__title {
  font-size: clamp(1.9rem, 1.4rem + 2.6vw, 3.2rem);
  font-weight: 700;
  margin-bottom: 12px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.ab-hero__lead p + p {
  margin-top: 0.4em;
}

.ab-hero__lead {
  max-width: 34em;
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.15rem);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
}

/* --- 代表メッセージ ---------------------------------------------------- */
.ab-message__inner {
  display: grid;
  gap: 32px;
}

.ab-message__figure {
  margin: 0;
}

.ab-message__image,
.ab-reason__image,
.ab-nature__image {
  width: 100%;
  border-radius: var(--radius-m);
  object-fit: cover;
}

.ab-message__image {
  aspect-ratio: 3 / 4;
  max-height: 560px;
}

.ab-message__figure figcaption {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

.ab-message__name {
  margin-top: 28px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-green-deep);
  text-align: right;
}

@media (min-width: 900px) {
  .ab-message__inner {
    grid-template-columns: 4fr 6fr;
    gap: 64px;
    align-items: start;
  }
}

/* --- 私たちの理念 ------------------------------------------------------ */
section.ab-philosophy {
  background-color: var(--color-green-deep);
  color: var(--color-text-on-dark);
  text-align: center;
}

.ab-philosophy__label {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  margin-bottom: 20px;
  color: rgba(245, 241, 232, 0.85);
}

.ab-philosophy__statement {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.45rem, 1rem + 2.2vw, 2.4rem);
  line-height: 1.7;
  margin-bottom: 56px;
}

.ab-pillars {
  display: grid;
  gap: 24px;
  text-align: left;
}

.ab-pillar {
  padding: 28px 24px;
  border: 1px solid rgba(245, 241, 232, 0.25);
  border-radius: var(--radius-m);
}

.ab-pillar h3 {
  font-size: 1.2rem;
  margin: 16px 0 12px;
}

/* 線画アイコン（インラインSVG・装飾）：金色の線、線幅・サイズを3点で統一 */
.ab-pillar__icon {
  display: block;
  width: 56px;
  height: 56px;
  fill: none;
  stroke: #e4c98a;
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (min-width: 900px) {
  .ab-pillars {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}

/* --- 活動する理由 ------------------------------------------------------ */
section.ab-reason {
  background-color: var(--color-bg-natural-alt);
}

.ab-reason__inner {
  display: grid;
  gap: 32px;
}

.ab-reason__figure {
  margin: 0;
}

.ab-reason__image {
  aspect-ratio: 4 / 3;
}

@media (min-width: 900px) {
  .ab-reason__inner {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
}

/* --- 川崎町の自然 ------------------------------------------------------ */
.ab-nature__head {
  margin-bottom: 8px;
}

.ab-nature__grid {
  display: grid;
  gap: 12px;
}

.ab-nature__grid figure {
  margin: 0;
}

.ab-nature__main .ab-nature__image {
  aspect-ratio: 3 / 2;
}

.ab-nature__side {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.ab-nature__side .ab-nature__image {
  aspect-ratio: 3 / 2;
}

.ab-nature__text {
  margin-top: 32px;
  max-width: 44em;
}

@media (min-width: 900px) {
  .ab-nature__grid {
    grid-template-columns: 2fr 1fr;
    gap: 16px;
  }
  .ab-nature__main .ab-nature__image {
    aspect-ratio: auto;
    height: 100%;
    min-height: 360px;
  }
  .ab-nature__side {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* --- 活動姿勢 ---------------------------------------------------------- */
section.ab-stance {
  background-color: var(--color-bg-natural-alt);
}

.ab-stance__grid {
  display: grid;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--color-border);
}

.ab-stance__item {
  padding: 24px 8px 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.ab-stance__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-accent-gold-dark);
  letter-spacing: 0.1em;
}

.ab-stance__item h3 {
  margin: 4px 0 10px;
  font-size: 1.15rem;
  color: var(--color-green-deep);
}

@media (min-width: 900px) {
  .ab-stance__grid {
    grid-template-columns: repeat(3, 1fr);
    column-gap: 48px;
  }
}

/* --- 団体概要 ---------------------------------------------------------- */
.ab-profile__inner {
  max-width: 860px;
}

.ab-profile__list {
  margin: 28px 0 36px;
  border-top: 1px solid var(--color-border);
}

.ab-profile__list > div {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.ab-profile__list dt {
  font-weight: 700;
  color: var(--color-green-deep);
}

.ab-profile__list dd {
  margin: 4px 0 0;
}

@media (min-width: 640px) {
  .ab-profile__list > div {
    display: grid;
    grid-template-columns: 10em 1fr;
    gap: 16px;
  }
  .ab-profile__list dd {
    margin: 0;
  }
}

/* --- 情報公開 ---------------------------------------------------------- */
section.ab-disclosure {
  background-color: var(--color-bg-natural-alt);
}

.ab-docs {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.ab-doc {
  padding: 24px;
  border: 1px dashed var(--color-green-soft);
  border-radius: var(--radius-m);
  background-color: rgba(255, 255, 255, 0.5);
}

.ab-doc h3 {
  font-size: 1.1rem;
  color: var(--color-green-deep);
}

.ab-doc__status {
  margin-top: 6px;
  color: var(--color-text-sub);
  font-size: 0.9rem;
}

@media (min-width: 640px) {
  .ab-docs {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- 最後のCTA --------------------------------------------------------- */
section.ab-cta {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(360px, 44vw, 520px);
  padding: 0;
  overflow: hidden;
  color: var(--color-text-on-dark);
  background-color: var(--color-green-deep-dark);
  text-align: center;
}

.ab-cta__media {
  position: absolute;
  inset: 0;
}

.ab-cta__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 80%;
}

.ab-cta__scrim {
  position: absolute;
  inset: 0;
  background-color: rgba(20, 32, 26, 0.5);
}

.ab-cta__content {
  position: relative;
  width: calc(100% - 48px);
  max-width: 760px;
  margin: 48px 0;
  padding: 36px 24px;
  border-radius: var(--radius-m);
  background-color: rgba(20, 32, 26, 0.74);
}

@media (min-width: 900px) {
  .ab-cta__content {
    padding: 44px 48px;
  }
}

.ab-cta__title {
  font-size: clamp(1.6rem, 1.1rem + 2.2vw, 2.6rem);
  margin-bottom: 32px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.ab-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

@media (max-width: 599px) {
  .ab-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }
}


.ab-stance__grid {
  list-style: none;
}

/* スマホ・タブレット：写真の下に文字を配置（文量に左右されず、山並みと文字が重ならない） */
@media (max-width: 899px) {
  section.ab-hero {
    display: block;
    min-height: 0;
  }
  .ab-hero__media {
    position: relative;
    inset: auto;
  }
  .ab-hero__image {
    height: auto;
    aspect-ratio: 21 / 9;
    object-position: center 55%;
    -webkit-mask-image: linear-gradient(to bottom, #000 80%, transparent 100%);
    mask-image: linear-gradient(to bottom, #000 80%, transparent 100%);
  }
  .ab-hero__scrim {
    background: none;
  }
  .ab-hero__content {
    padding: 4px 24px 40px;
  }
}

@media (max-width: 599px) {
  .ab-hero__image {
    aspect-ratio: 5 / 4;
    object-position: center top;
  }
}

/* PC：文量が増えたため、ヒーローを少し高くし、文字の背後の暗幕を下から厚めにする */
@media (min-width: 900px) {
  section.ab-hero {
    min-height: clamp(540px, 48vw, 620px);
  }
  .ab-hero__scrim {
    background: linear-gradient(to top, rgba(20, 32, 26, 0.82) 0%, rgba(20, 32, 26, 0.66) 38%, rgba(20, 32, 26, 0) 72%);
  }
}

/* --- 本文（段落） ------------------------------------------------------- */
.ab-prose {
  max-width: 42em;
}

.ab-prose p {
  line-height: 1.95;
}

.ab-prose p + p {
  margin-top: 1.1em;
}

.ab-philosophy__body {
  margin: 0 auto 48px;
  text-align: left;
}

.ab-stance__lead,
.ab-profile__inner > .ab-prose,
.ab-disclosure .ab-prose {
  margin-bottom: 8px;
}

.ab-stance__item p {
  line-height: 1.9;
  font-size: 0.95rem;
}

.ab-cta__eyebrow {
  margin-bottom: 8px;
}

.ab-cta__text {
  max-width: 38em;
  margin: 0 auto 32px;
  text-align: left;
}

.ab-cta__text p + p {
  margin-top: 0.9em;
}

.ab-pillar p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(245, 241, 232, 0.92);
}

.ab-philosophy__statement,
.ab-reason .section-title,
.ab-nature .section-title,
.ab-message .section-title {
  text-wrap: balance;
}

/* --- 代表メッセージ（正式原稿） --------------------------------------- */
.ab-message__text { max-width: 40em; }

.ab-message__sub {
  margin: 28px 0 8px;
  padding-left: 12px;
  border-left: 4px solid var(--color-green-soft);
  font-size: 1.1rem;
  color: var(--color-green-deep);
  text-wrap: balance;
}

.ab-message__sub:first-child { margin-top: 8px; }

.ab-message__text p {
  line-height: 2;
  text-wrap: pretty;
  word-break: auto-phrase;
}

.ab-doc__link { display: inline-flex; gap: 8px; margin-top: 14px; color: var(--color-green-deep); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }