/* ============================================
   瞑茶茶房 千露利 — グローバルスタイル
   配色・タイポグラフィ・レイアウトの基盤
   ============================================ */

:root {
  --color-primary: #1b3a2f;
  --color-primary-soft: #234a3d;
  --color-bg: #faf8f4;
  --color-bg-alt: #f3efe6;
  --color-surface: #ffffff;
  --color-text: #2a2a2a;
  --color-muted: #5c5c5c;
  --color-accent: #b08d57;
  --color-accent-soft: #c6a56d;
  --color-matcha: #7d9a78;
  --color-line: rgba(27, 58, 47, 0.12);
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --space-section: clamp(4.5rem, 8vw, 7.5rem);
  --space-block: clamp(2rem, 4vw, 3rem);
  --container: 1120px;
  --header-height: 108px;
  --transition-fast: 0.25s ease;
  --transition-med: 0.45s ease;
  --shadow-soft: 0 18px 45px rgba(27, 58, 47, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

p {
  margin: 0 0 1.25em;
}

p:last-child {
  margin-bottom: 0;
}

/* ヘッダー */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--color-line);
}

.header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo:hover {
  color: inherit;
  opacity: 0.88;
}

.logo__img {
  display: block;
  height: 84px;
  width: auto;
  max-width: min(320px, 56vw);
  object-fit: contain;
}

/* ナビゲーション（デスクトップ） */
.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2vw, 2rem);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
}

.nav__list a {
  color: var(--color-primary);
  position: relative;
}

.nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.nav__list a:hover::after {
  transform: scaleX(1);
}

.nav__list a:hover {
  color: var(--color-accent);
}

.nav__cta {
  margin-left: 0.5rem;
}

/* ハンバーガー */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-surface);
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.nav-toggle:hover {
  border-color: var(--color-accent);
  background: #fffdf8;
}

.nav-toggle__bar {
  width: 18px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-med), opacity var(--transition-fast);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 85;
  background: rgba(27, 58, 47, 0.35);
}

body.nav-open .nav-backdrop {
  display: block;
}

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-med), color var(--transition-med), border-color var(--transition-med), opacity var(--transition-med), box-shadow var(--transition-med);
}

.btn--header {
  background: var(--color-primary);
  color: #f7f4ec;
  border-color: var(--color-primary);
}

.btn--header:hover {
  background: var(--color-primary-soft);
  color: #fff;
  border-color: var(--color-primary-soft);
  box-shadow: var(--shadow-soft);
}

.btn--hero {
  background: transparent;
  color: #fdfcf8;
  border-color: rgba(253, 252, 248, 0.65);
}

.btn--hero:hover {
  background: rgba(253, 252, 248, 0.12);
  color: #fff;
  border-color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: #fdfcf8;
  border-color: var(--color-primary);
}

/* ヒーロー / スライダー */
.hero {
  position: relative;
  min-height: min(78vh, 720px);
  background: var(--color-primary);
}

.hero__slider {
  position: relative;
  width: 100%;
  height: min(78vh, 720px);
  overflow: hidden;
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 1s ease;
}

.hero__slide.is-active {
  opacity: 1;
  pointer-events: auto;
  z-index: 1;
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transition: transform 8s ease;
}

.hero__slide.is-active .hero__img {
  transform: scale(1);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(27, 58, 47, 0.72) 0%, rgba(27, 58, 47, 0.35) 45%, rgba(27, 58, 47, 0.2) 100%);
}

.hero__content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
  color: #f8f6f0;
}

.hero__label {
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(248, 246, 240, 0.78);
  margin: 0 0 1rem;
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.18em;
  margin: 0 0 1rem;
}

.hero__title--sub {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
}

.hero__lead {
  font-size: 1rem;
  max-width: 26rem;
  margin: 0 0 2rem;
  color: rgba(248, 246, 240, 0.92);
}

.hero__dots {
  position: absolute;
  left: 50%;
  bottom: 1.75rem;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 0.5rem;
}

.hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: transparent;
  padding: 0;
  cursor: pointer;
  transition: background-color var(--transition-med), transform var(--transition-med);
}

.hero__dot.is-active {
  background: #fff;
  transform: scale(1.15);
}

.hero__dot:hover {
  background: rgba(255, 255, 255, 0.65);
}

/* セクション共通 */
.section {
  padding: var(--space-section) 0;
}

.section__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}

.section__eyebrow {
  font-size: 0.6875rem;
  letter-spacing: 0.35em;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

.section__heading {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 2.6vw, 2.25rem);
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin: 0 0 var(--space-block);
  line-height: 1.45;
}

.section__lead {
  margin: -1.5rem 0 2.5rem;
  color: var(--color-muted);
  max-width: 36rem;
}

.section__header {
  text-align: center;
}

.section__header .section__heading {
  margin-bottom: 0.5rem;
}

.section__header .section__lead {
  margin: 1rem auto 0;
}

.section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin-top: 3rem;
}

/* コンセプト */
.concept {
  background: var(--color-surface);
}

.concept__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.concept__br {
  display: none;
}

.concept__body {
  max-width: 38rem;
  margin: 0 auto;
  text-align: center;
  color: var(--color-muted);
}

.concept__figure {
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.concept__figure img {
  width: 100%;
  display: block;
}

/* 商品グリッド */
.products {
  background: var(--color-bg-alt);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.25rem, 2vw, 1.75rem);
}

.product-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 920px;
  margin: 0 auto;
}

.product-card {
  background: var(--color-surface);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(27, 58, 47, 0.06);
}

.product-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}

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

.product-card__link:hover .product-card__name {
  color: var(--color-accent);
}

.product-card__image {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: #e8e4dc;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-med), opacity var(--transition-med);
}

.product-card__link:hover .product-card__image img {
  transform: scale(1.05);
  opacity: 0.95;
}

.product-card__name {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  margin: 1.25rem 1.25rem 0.4rem;
  transition: color var(--transition-fast);
}

.product-card__desc {
  margin: 0 1.25rem 1.35rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--color-muted);
}

.product-card__price {
  margin: 0 1.25rem 1.35rem;
  font-size: 0.875rem;
  color: var(--color-primary);
}

.product-card__price .tax {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-left: 0.25rem;
}

/* 抹茶体験・茶房・枯山水（横並びブロック） */
.feature-block {
  padding: var(--space-section) 0;
}

.feature-block--surface {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
}

.feature-block--alt {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-line);
}

.feature-block__header {
  text-align: center;
  margin-bottom: clamp(2rem, 4vw, 2.75rem);
}

.feature-block__header .section__heading {
  margin-bottom: 0;
}

.feature-block__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.feature-block__text {
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--color-muted);
}

.feature-block__text p {
  margin: 0 0 1.1em;
}

.feature-block__reserve-note {
  margin: 1.25rem 0 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

.feature-block__actions {
  margin-top: 0.25rem;
}

.feature-block__btn {
  min-width: 200px;
}

.feature-block__figure {
  margin: 0;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.feature-block__figure img {
  width: 100%;
  height: auto;
  display: block;
}

/* ニュース */
.news {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
}

.news__layout {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.news__header {
  text-align: left;
}

.news__header .section__heading {
  margin-bottom: 0;
}

.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-line);
}

.news-list__link {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-line);
  align-items: baseline;
}

.news-list__link:hover .news-list__title {
  color: var(--color-accent);
}

.news-list__date {
  font-size: 0.8125rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

.news-list__title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  margin: 0;
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
}

/* フッター */
.footer {
  background: var(--color-primary);
  color: #e9e4d9;
  padding: clamp(3rem, 6vw, 4.5rem) 0 2rem;
}

.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}

.footer__brand {
  margin-bottom: 2.5rem;
}

.footer__logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.2em;
  color: #fdfcf8;
}

.footer__logo:hover {
  color: var(--color-accent-soft);
}

.footer__tagline {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  color: rgba(233, 228, 217, 0.85);
}

.footer__columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__heading {
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin: 0 0 1rem;
  color: #fff;
}

.footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
}

.footer__links li + li {
  margin-top: 0.5rem;
}

.footer a {
  color: rgba(233, 228, 217, 0.9);
}

.footer a:hover {
  color: var(--color-accent-soft);
}

.footer__address {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(233, 228, 217, 0.85);
}

.footer__copy {
  margin: 1.5rem 0 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(233, 228, 217, 0.55);
  text-align: center;
}

/* スクロールフェードイン */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* 1024px 未満：ハンバーガー表示・ナビをドロワー風に */
@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(320px, 86vw);
    background: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--header-height) + 1.5rem) 1.75rem 2rem;
    gap: 2rem;
    box-shadow: -12px 0 40px rgba(27, 58, 47, 0.12);
    transform: translateX(100%);
    transition: transform var(--transition-med);
    z-index: 90;
  }

  body.nav-open {
    overflow: hidden;
  }

  body.nav-open .nav {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    font-size: 0.9375rem;
  }

  .nav__cta {
    margin-left: 0;
    width: 100%;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .news__layout {
    grid-template-columns: 1fr;
  }

  .news__header {
    text-align: center;
  }

  .footer__columns {
    grid-template-columns: 1fr 1fr;
  }
}

/* 768px 未満：1カラム商品・ニュース調整 */
@media (max-width: 767px) {
  :root {
    --header-height: 88px;
  }

  .header__inner {
    height: var(--header-height);
  }

  .logo__img {
    height: 64px;
    max-width: min(260px, 62vw);
  }

  .hero__slider {
    height: min(70vh, 560px);
  }

  .hero {
    min-height: min(70vh, 560px);
  }

  .hero__content {
    padding-bottom: 3rem;
  }

  .concept__br {
    display: inline;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .product-grid--two {
    max-width: none;
  }

  .feature-block__grid {
    grid-template-columns: 1fr;
  }

  /* 枯山水：見出しの直下に写真 → 本文（デスクトップは左テキスト・右画像のまま） */
  #karesansui-experience .feature-block__figure {
    order: 1;
  }

  #karesansui-experience .feature-block__text {
    order: 2;
  }

  .news-list__link {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .footer__columns {
    grid-template-columns: 1fr;
  }
}