@charset "UTF-8";
/* ==========================================================================

   落葉 / RAKUYOU  ―  Home  (仕様書§15)

   固定ページテンプレート page-rakuyou-home.php 専用のスタイル。
   このCSSはトップページでのみ読み込まれます（functions.phpで制御）。

   --------------------------------------------------------------------------
   H-1   Layout Reset       Cocoonの本文枠を外して全幅を使う
   H-2   Section Heading    セクション見出し
   H-3   Card               記事カード
   H-4   Hero               §15 HERO
   H-5   Featured           §15 今夜、読みたいもの
   H-6   About              §15 落葉について
   H-7   Shelf              §15 好奇心の棚
   H-8   Latest             §15 最新記事
   H-9   Special            §15 特集
   H-10  Travel             §15 旅 / Vlog
   H-11  First Visit        §15 初めての方へ
   H-12  Profile            §15 プロフィール
   --------------------------------------------------------------------------

   ========================================================================== */


/* ==========================================================================
   H-1   Layout Reset
   ========================================================================== */

.rakuyou-home {
  background-color: var(--rk-bg);
}

.rakuyou-home .rakuyou-home__main,
#content.rakuyou-home #main {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  float: none;
  background: transparent;
  border: 0;
  box-shadow: none;
}

/* トップにパンくずは出さない */
.rakuyou-home .breadcrumb,
.rakuyou-home #breadcrumb {
  display: none;
}

/* 最初のセクションはHEROなので、上の余白を作らない */
.rakuyou-home .rk-hero + .rakuyou-section {
  padding-top: var(--rk-section-gap);
}


/* ==========================================================================
   H-2   Section Heading
   ========================================================================== */

.rk-heading {
  margin-bottom: var(--rk-space-xl);
  text-align: center;
}

.rk-heading--left {
  text-align: left;
}

.rk-heading--with-link {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--rk-space-md);
  flex-wrap: wrap;
}

.rk-heading .rakuyou-label {
  display: block;
  margin-bottom: var(--rk-space-sm);
}

.rk-heading__title {
  margin: 0;
  font-family: var(--rk-font-display);
  font-size: clamp(1.375rem, 1.15rem + 0.95vw, 1.875rem);
  font-weight: var(--rk-weight-bold);
  letter-spacing: 0.1em;
  line-height: 1.5;
  color: var(--rk-text);
  position: relative;
  display: inline-block;
  padding-bottom: var(--rk-space-sm);
}

/* 見出しの下に、真鍮の短い罫線 */
.rk-heading__title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 2.25rem;
  height: 1px;
  background-color: var(--rakuyou-brass);
}

.rk-heading:not(.rk-heading--left) .rk-heading__title::after {
  left: 50%;
  transform: translateX(-50%);
}

.rk-heading__note {
  margin: var(--rk-space-sm) 0 0;
  font-family: var(--rk-font-ui);
  font-size: var(--rk-text-base);
  line-height: 1.9;
  letter-spacing: var(--rk-tracking-wide);
  color: var(--rk-text-muted);
}


/* ==========================================================================
   H-3   Card
   仕様書§26「カードを大量に並べる」を避けるため、
   囲み枠は作らず、画像とテキストだけで構成する。
   ========================================================================== */

.rk-card {
  position: relative;
}

.rk-card__link {
  display: block;
  color: inherit;
  border: 0;
}

.rk-card__link:hover {
  color: inherit;
}

/* --- 画像 --------------------------------------------------------------- */

.rk-card__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--rk-radius-md);
  background-color: var(--rakuyou-brass-light);
  aspect-ratio: 3 / 2;
}

.rk-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 600ms var(--rk-ease), filter 600ms var(--rk-ease);
}

.rk-card__link:hover .rk-card__media img {
  transform: scale(1.035);
  filter: brightness(1.04);
}

/* アイキャッチが無いとき ― 真鍮の淡いグラデーションで埋める */
.rk-card__media-empty {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, var(--rakuyou-brass-light) 0%, var(--rk-bg-subtle) 100%);
}

.rk-card__media-empty::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2rem;
  height: 1px;
  transform: translate(-50%, -50%);
  background-color: var(--rakuyou-brass);
  opacity: 0.5;
}

/* --- 本体 --------------------------------------------------------------- */

.rk-card__body {
  padding-top: var(--rk-space-sm);
}

.rk-card__cat {
  display: block;
  margin-bottom: 0.5em;
  font-family: var(--rk-font-ui);
  font-size: var(--rk-text-xs);
  letter-spacing: var(--rk-tracking-wide);
  color: var(--rakuyou-brass-deep);
  line-height: 1;
}

.rk-card__title {
  margin: 0;
  font-family: var(--rk-font-display);
  font-size: 1.0625rem;
  font-weight: var(--rk-weight-bold);
  line-height: var(--rk-leading-snug);
  letter-spacing: 0.045em;
  color: var(--rk-text);
  transition: color var(--rk-transition);

  /* 3行で省略。タイトルが長い記事が多いため */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}

.rk-card__link:hover .rk-card__title {
  color: var(--rakuyou-wood);
}

.rk-card__excerpt {
  margin: var(--rk-space-sm) 0 0;
  font-size: var(--rk-text-base);
  line-height: 1.9;
  color: var(--rk-text-muted);

  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}

.rk-card__date {
  display: block;
  margin-top: var(--rk-space-sm);
  font-family: var(--rk-font-latin);
  font-size: var(--rk-text-sm);
  letter-spacing: 0.1em;
  color: var(--rk-text-muted);
}

/* --- サイズ違い --------------------------------------------------------- */

.rk-card--large .rk-card__media {
  aspect-ratio: 16 / 9;
}

.rk-card--large .rk-card__title {
  font-size: clamp(1.25rem, 1.05rem + 0.85vw, 1.625rem);
  -webkit-line-clamp: 3;
  line-clamp: 3;
}

.rk-card--large .rk-card__body {
  padding-top: var(--rk-space-md);
}

.rk-card--small .rk-card__title {
  font-size: 1rem;
}


/* ==========================================================================
   H-4   Hero
   ========================================================================== */

.rk-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(24rem, 18rem + 22vw, 34rem);
  padding-block: var(--rk-space-xl);
  overflow: hidden;
  background-color: var(--rakuyou-dark);
  color: var(--rakuyou-ivory);
}

/* 画像を指定していないとき ― 紙と木の落ち着いた面 */
.rk-hero:not(.rk-hero--image) {
  background:
    radial-gradient(120% 100% at 15% 30%, rgba(118, 84, 64, 0.55) 0%, transparent 60%),
    linear-gradient(160deg, #3E2E24 0%, var(--rakuyou-dark) 55%, #241A14 100%);
}

.rk-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.rk-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}

/* 画像の上に文字を置くための膜。
   左から右へ、濃い茶が薄れていく。文字側だけを確実に読ませる */
.rk-hero--image .rk-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      95deg,
      rgba(35, 39, 31, 0.94) 0%,
      rgba(53, 39, 31, 0.86) 32%,
      rgba(53, 39, 31, 0.45) 62%,
      rgba(53, 39, 31, 0.30) 100%
    );
}

.rk-hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
}

.rk-hero__title {
  margin: 0;
  font-family: var(--rk-font-display);
  font-size: var(--rk-text-hero);
  font-weight: var(--rk-weight-bold);
  line-height: 1.45;
  letter-spacing: 0.06em;
  color: var(--rakuyou-ivory);
}

.rk-hero__sub {
  margin: var(--rk-space-md) 0 0;
  font-family: var(--rk-font-display);
  font-size: clamp(1rem, 0.9rem + 0.5vw, 1.25rem);
  font-weight: var(--rk-weight-normal);
  letter-spacing: 0.14em;
  line-height: 1.8;
  color: var(--rakuyou-brass-light);
}

.rk-hero__text {
  max-width: 34em;
  margin: var(--rk-space-lg) 0 0;
  font-family: var(--rk-font-ui);
  font-size: var(--rk-text-base);
  line-height: 2;
  letter-spacing: 0.06em;
  color: rgba(244, 240, 230, 0.82);
}

.rk-hero__cta {
  margin-top: var(--rk-space-lg);
  color: var(--rakuyou-ivory);
  border-color: rgba(244, 240, 230, 0.45);
}

.rk-hero__cta:hover {
  color: var(--rakuyou-dark);
  background-color: var(--rakuyou-ivory);
  border-color: var(--rakuyou-ivory);
}


/* ==========================================================================
   H-5   Featured  ―  今夜、読みたいもの
   大きな1記事 + 小さな2記事
   ========================================================================== */

.rk-featured__grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: var(--rk-space-lg);
  align-items: start;
}

/* 1枚目を左に大きく、縦2段ぶん使う */
.rk-featured__grid > .rk-card--large {
  grid-row: span 2;
}


/* ==========================================================================
   H-6   About  ―  落葉について
   ========================================================================== */

.rk-about {
  background-color: var(--rk-bg-content);
}

.rk-about__grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: var(--rk-space-xl);
  align-items: center;
}

.rk-about__text {
  margin-top: var(--rk-space-lg);
  font-size: var(--rk-text-body);
  line-height: var(--rk-leading-body);
  color: var(--rk-text);
}

.rk-about__text p {
  margin-bottom: 1.5em;
}

.rk-about__text p:last-child {
  margin-bottom: 0;
}

.rk-about__body .rakuyou-button {
  margin-top: var(--rk-space-lg);
}

.rk-about__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--rk-radius-md);
}


/* ==========================================================================
   H-7   Shelf  ―  好奇心の棚
   本棚から選ぶ感覚。均等に並んだ「棚板」に見せる。
   ========================================================================== */

/* カテゴリーが増減しても崩れないように、列数は自動で決める。
   （記事0件のカテゴリーはテンプレート側で除外されるため、
     並ぶ数は6つだったり7つだったりする） */
.rk-shelf__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr));
  gap: 0;
  border: 1px solid var(--rk-line);
  border-radius: var(--rk-radius-md);
  overflow: hidden;
  background-color: var(--rk-bg-content);
}

.rk-shelf__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0.4rem;
  padding: var(--rk-space-md) 0.5rem;
  text-align: center;
  color: var(--rk-text);
  border-right: 1px solid var(--rk-line);
  transition: background-color var(--rk-transition);
}

.rk-shelf__item:last-child {
  border-right: 0;
}

.rk-shelf__item:hover {
  background-color: var(--rk-bg-subtle);
  color: var(--rk-text);
}

.rk-shelf__icon {
  font-size: 1.125rem;
  color: var(--rakuyou-brass);
  line-height: 1;
  margin-bottom: 0.2rem;
  transition: color var(--rk-transition);
}

.rk-shelf__item:hover .rk-shelf__icon {
  color: var(--rakuyou-wood);
}

.rk-shelf__name {
  font-family: var(--rk-font-display);
  font-size: 1rem;
  font-weight: var(--rk-weight-bold);
  letter-spacing: 0.08em;
  line-height: 1.4;
}

.rk-shelf__sub {
  font-family: var(--rk-font-ui);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: var(--rakuyou-brass-deep);
}

.rk-shelf__count {
  margin-top: 0.35rem;
  font-family: var(--rk-font-ui);
  font-size: var(--rk-text-xs);
  letter-spacing: 0.06em;
  color: var(--rk-text-muted);
}


/* ==========================================================================
   H-8   Latest  ―  最新記事
   ここだけは比較的ふつうのブログ型（仕様書§15）
   ========================================================================== */

.rk-latest__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rk-space-lg) var(--rk-space-md);
}


/* ==========================================================================
   H-9   Special  ―  特集
   ========================================================================== */

.rk-special {
  background-color: var(--rakuyou-dark);
  color: var(--rakuyou-ivory);
}

.rk-special .rk-heading__title {
  color: var(--rakuyou-ivory);
}

.rk-special .rk-heading__note {
  color: rgba(244, 240, 230, 0.7);
}

.rk-special__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rk-space-md);
}

.rk-special__item {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--rk-radius-md);
  border: 1px solid rgba(167, 131, 69, 0.3);
  min-height: 15rem;
  color: var(--rakuyou-ivory);
  transition: border-color var(--rk-transition);
}

.rk-special__item:hover {
  border-color: var(--rakuyou-brass);
  color: var(--rakuyou-ivory);
}

.rk-special__media {
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, rgba(118, 84, 64, 0.5), rgba(35, 27, 20, 0.9));
}

.rk-special__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  opacity: 0.55;
  transition: opacity var(--rk-transition), transform 600ms var(--rk-ease);
}

.rk-special__item:hover .rk-special__media img {
  opacity: 0.7;
  transform: scale(1.04);
}

.rk-special__body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  min-height: 15rem;
  padding: var(--rk-space-md);
  background: linear-gradient(to top, rgba(35, 27, 20, 0.92) 0%, rgba(35, 27, 20, 0.1) 70%);
}

.rk-special__title {
  display: block;
  font-family: var(--rk-font-display);
  font-size: 1.125rem;
  font-weight: var(--rk-weight-bold);
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--rakuyou-ivory);
}

.rk-special__text {
  display: block;
  margin-top: 0.5em;
  font-family: var(--rk-font-ui);
  font-size: var(--rk-text-sm);
  line-height: 1.8;
  letter-spacing: 0.06em;
  color: rgba(244, 240, 230, 0.75);
}


/* ==========================================================================
   H-10  Travel
   ========================================================================== */

.rk-travel__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rk-space-md);
}


/* ==========================================================================
   H-11  First Visit
   ========================================================================== */

.rk-first {
  background-color: var(--rk-bg-content);
}

.rk-first__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rk-space-md);
}


/* ==========================================================================
   H-12  Profile
   ========================================================================== */

.rk-profile-card {
  padding: var(--rk-space-xl) var(--rk-space-lg);
  text-align: center;
  border-top: 1px solid var(--rk-line);
  border-bottom: 1px solid var(--rk-line);
}

.rk-profile-card__message {
  margin: 0;
  font-family: var(--rk-font-display);
  font-size: clamp(1.125rem, 1rem + 0.7vw, 1.4375rem);
  font-weight: var(--rk-weight-bold);
  line-height: 2;
  letter-spacing: 0.1em;
  color: var(--rakuyou-wood);
}

.rk-profile-card__lead {
  margin: var(--rk-space-lg) 0 0;
  font-size: var(--rk-text-body);
  line-height: 2;
  letter-spacing: 0.06em;
  color: var(--rk-text);
}

.rk-profile-card__sign {
  margin: var(--rk-space-lg) 0 0;
  font-family: var(--rk-font-latin);
  font-size: var(--rk-text-sm);
  letter-spacing: 0.18em;
  color: var(--rk-text-muted);
}


/* ==========================================================================
   Responsive  ―  タブレット
   ========================================================================== */

@media screen and (max-width: 1023px) {

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

  .rk-shelf__item {
    border-bottom: 1px solid var(--rk-line);
  }

  .rk-shelf__item:nth-child(4n) {
    border-right: 0;
  }

  .rk-latest__grid,
  .rk-special__grid,
  .rk-travel__grid,
  .rk-first__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .rk-about__grid {
    grid-template-columns: 1fr;
    gap: var(--rk-space-lg);
  }

  .rk-about__media {
    order: -1;
  }
}


/* ==========================================================================
   Responsive  ―  スマートフォン
   ========================================================================== */

@media screen and (max-width: 834px) {

  .rk-hero {
    min-height: 0;
    padding-block: var(--rk-space-2xl);
  }

  /* スマホでは画像の上に文字が乗るので、膜を全面に均一にかける */
  .rk-hero--image .rk-hero__bg::after {
    background: linear-gradient(
      to bottom,
      rgba(35, 39, 31, 0.82) 0%,
      rgba(53, 39, 31, 0.88) 100%
    );
  }

  .rk-heading {
    margin-bottom: var(--rk-space-lg);
  }

  /* 大1+小2 の組み方をやめて、縦1列にする */
  .rk-featured__grid {
    grid-template-columns: 1fr;
    gap: var(--rk-space-lg);
  }

  .rk-featured__grid > .rk-card--large {
    grid-row: auto;
  }

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

  .rk-shelf__item:nth-child(4n) {
    border-right: 1px solid var(--rk-line);
  }

  .rk-shelf__item:nth-child(2n) {
    border-right: 0;
  }

  .rk-special__item,
  .rk-special__body {
    min-height: 12rem;
  }

  .rk-profile-card {
    padding: var(--rk-space-lg) 0;
  }
}

@media screen and (max-width: 560px) {

  /* 最新記事は横並びリストにして、縦に長くなりすぎないようにする */
  .rk-latest__grid,
  .rk-travel__grid,
  .rk-first__grid {
    grid-template-columns: 1fr;
    gap: var(--rk-space-md);
  }

  .rk-latest__grid .rk-card,
  .rk-travel__grid .rk-card,
  .rk-first__grid .rk-card {
    display: block;
  }

  .rk-latest__grid .rk-card__link,
  .rk-travel__grid .rk-card__link,
  .rk-first__grid .rk-card__link {
    display: grid;
    grid-template-columns: 7.5rem 1fr;
    gap: var(--rk-space-sm);
    align-items: start;
  }

  .rk-latest__grid .rk-card__body,
  .rk-travel__grid .rk-card__body,
  .rk-first__grid .rk-card__body {
    padding-top: 0;
  }

  .rk-latest__grid .rk-card__title,
  .rk-travel__grid .rk-card__title,
  .rk-first__grid .rk-card__title {
    font-size: 0.9375rem;
  }

  .rk-special__grid {
    grid-template-columns: 1fr;
  }
}