/* ==========================================
   中嶋造園 / style.css
   ========================================== */

/* --- 変数 --- */
:root {
  --green:    #3a6b33;
  --green-lt: #5a8f52;
  --black:    #1a1a1a;
  --gray:     #888;
  --gray-lt:  #bbb;
  --border:   #e0e0e0;
  --bg:       #fafaf8;
  --white:    #ffffff;

  --inner-width: 1280px;
  --section-padding: 5rem 0;
}

/* --- リセット --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; height: auto; }
button { cursor: pointer; background: none; border: none; font-family: inherit; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  color: var(--black);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* --- .inner --- */
.inner {
  max-width: var(--inner-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- 共通ラベル・タイトル --- */
.label-en {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--green);
  font-weight: 400;
  margin-bottom: 1.2rem;
}

.section-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 300;
  color: var(--black);
  letter-spacing: 0.12em;
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  white-space: nowrap;
}

.section-title::before {
  content: '';
  width: 2rem;
  height: 1px;
  background: var(--black);
  flex-shrink: 0;
  opacity: 0.4;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--black);
  opacity: 0.4;
}


/* ==========================================
   HEADER
   ========================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  height: 68px;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo { text-decoration: none; }

.header__logo-ja {
  display: block;
  font-family: 'Noto Serif JP', serif;
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--black);
  letter-spacing: 0.08em;
}

.header__logo-en {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gray);
  font-weight: 400;
  margin-top: 1px;
}

.header__nav { display: flex; gap: 2.5rem; }

.header__nav a {
  text-decoration: none;
  color: var(--gray);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  transition: color 0.2s;
  font-weight: 400;
}

.header__nav a:hover { color: var(--black); }

.header__tel { text-align: right; }

.header__tel a {
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  color: var(--black);
  letter-spacing: 0.04em;
  display: block;
}

.header__tel span {
  font-size: 0.65rem;
  color: var(--gray);
}

/* ハンバーガーボタン（PC では非表示） */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
}

.header__burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center;
}

.header__burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.header__burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header__burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* モバイルナビ */
.mobile-nav {
  position: fixed;
  inset: 0;
  top: 68px;
  background: var(--white);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.mobile-nav.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav__menu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
}

.mobile-nav__link {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--black);
  text-decoration: none;
  letter-spacing: 0.12em;
  transition: color 0.2s;
}

.mobile-nav__link:hover { color: var(--green); }

/* スマホ固定フッター（PC では非表示） */
.sp-footer {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 80;
  grid-template-columns: 1fr 1fr;
  height: 56px;
}

.sp-footer__tel {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  background: var(--black);
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.sp-footer__contact {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  background: var(--green);
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ==========================================
   HERO SLIDESHOW
   ========================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1e3d1a 0%, #2d5a27 40%, #4a7c3f 100%);
}

/* スライド群 */
.hero__slides {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.8s ease-in-out;
  will-change: opacity, transform;
}

/* フェードイン */
.hero__slide.is-active {
  opacity: 1;
}

/* ---- Ken Burns: スライドごとに異なる動き ---- */
.hero__slide--1.kb-play {
  animation: kb-zoom-in   8s ease-out both;
}
.hero__slide--2.kb-play {
  animation: kb-pan-left  8s ease-out both;
}
.hero__slide--3.kb-play {
  animation: kb-zoom-out  8s ease-out both;
}
.hero__slide--4.kb-play {
  animation: kb-pan-right 8s ease-out both;
}

/* ズームイン（中央から少し引く） */
@keyframes kb-zoom-in {
  from { transform: scale(1.12); }
  to   { transform: scale(1.0);  }
}
/* ズームアウト（ゆっくり近づく） */
@keyframes kb-zoom-out {
  from { transform: scale(1.0);  }
  to   { transform: scale(1.1);  }
}
/* 右から左へパン + 微ズーム */
@keyframes kb-pan-left {
  from { transform: scale(1.08) translateX(2%); }
  to   { transform: scale(1.04) translateX(-2%); }
}
/* 左から右へパン + 微ズーム */
@keyframes kb-pan-right {
  from { transform: scale(1.08) translateX(-2%); }
  to   { transform: scale(1.04) translateX(2%);  }
}

/* 各スライドの背景画像 */
.hero__slide--1 { background-image: url('../../images/slide1.jpg'); }
.hero__slide--2 { background-image: url('../../images/slide2.jpg'); }
.hero__slide--3 { background-image: url('../../images/slide3.jpg'); }
.hero__slide--4 { background-image: url('../../images/slide4.jpg'); }

/* 暗めのオーバーレイ（文字を読みやすくする） */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.5) 0%,
    rgba(0, 0, 0, 0.2) 60%,
    rgba(0, 0, 0, 0.05) 100%
  );
  z-index: 1;
}

/* テキストコンテンツ */
.hero__inner {
  position: relative;
  z-index: 2;
}

.hero__content { max-width: 560px; }

.hero__eyebrow {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 2rem;
  font-weight: 600;
}

.hero__title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.65;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 2rem;
}

.hero__desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 2;
  margin-bottom: 3rem;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--white);
  background: rgba(255, 255, 255, 0.32);
  border: 1px solid rgba(255, 255, 255, 0.7);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  font-weight: 400;
  padding: 1.1rem 2.4rem;
  backdrop-filter: blur(4px);
  transition: background 0.3s, gap 0.25s;
}

.hero__cta:hover {
  background: rgba(255, 255, 255, 0.28);
  gap: 1.5rem;
}

/* インジケーター */
.hero__indicators {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
  z-index: 2;
}

.hero__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transition: background 0.3s, transform 0.3s;
  padding: 0;
}

.hero__dot.is-active {
  background: var(--white);
  transform: scale(1.3);
}

/* ==========================================
   SERVICES
   ========================================== */
.services { padding: var(--section-padding); background: var(--white); }

.services__heading { margin-bottom: 3rem; }

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.services__card {
  padding: 2.5rem 2rem;
  background: var(--white);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
  transition: background 0.25s, box-shadow 0.25s;
  display: flex;
  flex-direction: column;
}

.services__card:hover {
  background: var(--bg);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

.services__num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  color: var(--green);
  letter-spacing: 0.15em;
  margin-bottom: 1.2rem;
  font-weight: 400;
}

.services__name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--black);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.services__text {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.9;
  flex: 1;
  margin-bottom: 1.5rem;
}

.services__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--green);
  border-bottom: 1px solid var(--green);
  padding-bottom: 2px;
  align-self: flex-start;
  transition: gap 0.25s;
}

.services__btn:hover { gap: 0.9rem; }

/* ==========================================
   FEATURES
   ========================================== */
.features { padding: var(--section-padding); background: var(--white); }

.features__inner > .section-title { margin-bottom: 4rem; }

.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--border);
}

.features__item {
  padding: 3.5rem;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.features__item:nth-child(even) { border-right: none; }

.features__num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  font-weight: 400;
  color: var(--border);
  line-height: 1;
  margin-bottom: 1.5rem;
}

.features__name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1rem;
  font-weight: 400;
  color: var(--black);
  margin-bottom: 0.8rem;
  letter-spacing: 0.04em;
}

.features__text { font-size: 0.82rem; color: var(--gray); line-height: 2; }

/* ==========================================
   WORKS
   ========================================== */
.works { padding: var(--section-padding); background: var(--bg); }

.works__inner > .section-title { margin-bottom: 4rem; }

.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.works__img {
  aspect-ratio: 365 / 434;
  overflow: hidden;
  margin-bottom: 0;
}

.works__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}

/* カード：細い線で囲む */
.works__card {
  background: var(--white);
  border: 1px solid var(--border);
}

.works__card:hover .works__img img { transform: scale(1.04); }

/* カテゴリー：画像下の細い区切り線の上に小さく表示 */
.works__category {
  display: block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--gray);
  margin-bottom: 0.6rem;
}

/* 画像の直下・テキストの直上に細い横線 */
.works__body {
  padding: 0.375rem 1rem 1.4rem;
  border-top: 1px solid var(--border);
}

.works__name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--black);
  letter-spacing: 0.04em;
  margin-bottom: 0.8rem;
  line-height: 1.6;
}

.works__text {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.9;
  margin-bottom: 1.4rem;
}

.works__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  transition: gap 0.25s;
}

.works__btn:hover { gap: 1rem; }

/* 施工事例 無限スクロールスライダー */
.works__slider {
  margin-top: 4rem;
  overflow: hidden;
  border-top: 1px solid var(--border);
  padding-top: 3rem;
}

.works__track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: works-marquee 28s linear infinite;
}

.works__track:hover { animation-play-state: paused; }

.works__slide-item {
  flex: 0 0 340px;
  height: 230px;
  overflow: hidden;
}

.works__slide-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}

.works__slide-item:hover img { transform: scale(1.05); }

@keyframes works-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ==========================================
   FLOW
   ========================================== */
.flow { padding: var(--section-padding); background: #fafaf8; }

.flow__heading { margin-bottom: 3rem; }

.flow__body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.flow__visual img {
  display: block;
  max-height: 520px;
  width: auto;
}

/* 各ステップ */
.flow__step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0 1.5rem;
}

/* 左カラム：ラベル・丸・点線 */
.flow__step-left {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flow__step-label {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--green);
  margin-bottom: 0.4rem;
  align-self: flex-start;
}

.flow__step-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.03em;
}

/* 点線コネクター */
.flow__step-line {
  flex: 1;
  width: 0;
  border-left: 2px dashed rgba(58, 107, 51, 0.25);
  margin: 0.6rem 0;
  min-height: 2.5rem;
}

.flow__step:last-child .flow__step-line { display: none; }

/* 右カラム：タイトル・カード */
.flow__step-right { padding-bottom: 2rem; }

.flow__step-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--black);
  letter-spacing: 0.04em;
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.flow__step-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.1rem 1.4rem;
}

.flow__step-text { font-size: 0.84rem; color: var(--gray); line-height: 1.9; }

/* 無料バッジ */
.flow__free {
  display: inline-block;
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 0.65rem;
  padding: 0.1rem 0.5rem;
  letter-spacing: 0.06em;
  vertical-align: middle;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  white-space: nowrap;
}

/* 下部CTA */
.flow__cta {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.flow__cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--white);
  background: var(--green);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  padding: 1.2rem 3rem;
  transition: background 0.25s, gap 0.25s;
}

.flow__cta-btn:hover {
  background: var(--green-lt);
  gap: 1.4rem;
}

/* ==========================================
   VOICE
   ========================================== */
.voice { padding: var(--section-padding); background: var(--white); }

.voice__inner > .section-title { margin-bottom: 4rem; }

.voice__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.voice__card {
  border: 1px solid var(--border);
  padding: 2.5rem;
}

.voice__stars {
  font-size: 0.85rem;
  color: #b5a040;
  letter-spacing: 0.1em;
  margin-bottom: 1.2rem;
}

.voice__text {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 2;
  margin-bottom: 1.5rem;
}

.voice__name {
  font-size: 0.75rem;
  color: var(--gray-lt);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  letter-spacing: 0.04em;
}

/* ==========================================
   CONTACT
   ========================================== */
.contact { padding: var(--section-padding); background: var(--white); }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8rem;
  align-items: start;
}

.contact__info > .label-en { margin-bottom: 1.2rem; }

.contact__title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 700;
  color: var(--black);
  line-height: 1.7;
  letter-spacing: 0.06em;
  margin-bottom: 2rem;
}

.contact__desc { font-size: 0.83rem; color: var(--gray); line-height: 2; }

.contact__tel-wrap {
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.contact__tel-label { font-size: 0.72rem; color: var(--gray); letter-spacing: 0.1em; margin-bottom: 0.5rem; }

.contact__tel-num {
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--black);
  letter-spacing: 0.05em;
  display: block;
}

.contact__tel-note { font-size: 0.72rem; color: var(--gray-lt); margin-top: 0.3rem; }

.contact__label {
  display: block;
  font-size: 0.75rem;
  color: var(--gray);
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.contact__input,
.contact__textarea {
  width: 100%;
  padding: 0.8rem 0;
  border: none;
  border-bottom: 1px solid var(--border);
  background: transparent;
  font-family: inherit;
  font-size: 0.88rem;
  color: var(--black);
  outline: none;
  margin-bottom: 2rem;
  border-radius: 0;
  transition: border-color 0.2s;
  appearance: none;
}

.contact__input:focus,
.contact__textarea:focus { border-bottom-color: var(--black); }

.contact__textarea { height: 100px; resize: none; }

.contact__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  background: var(--black);
  color: var(--white);
  padding: 1rem 2.5rem;
  font-family: inherit;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  transition: background 0.25s;
  border: none;
}

.contact__btn:hover { background: #333; }

.contact__note { font-size: 0.72rem; color: var(--gray-lt); margin-top: 1rem; }

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  background: var(--black);
  padding: 3rem 0;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__logo {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

.footer__address {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.8;
}

.footer__copy {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 900px) {
  :root { --section-padding: 3.5rem 0; }

  .header__nav { display: none; }
  .header__tel { display: none; }
  .header__burger { display: flex; }
  .sp-footer { display: grid; }
  body { padding-bottom: 56px; }

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

.features__grid { grid-template-columns: 1fr; }
  .features__item { border-right: none; }

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

  .flow__body { grid-template-columns: 1fr; }
  .flow__visual { display: none; }
  .voice__grid { grid-template-columns: 1fr; }

  .contact__inner { grid-template-columns: 1fr; gap: 3rem; }

  .footer__inner { flex-direction: column; text-align: center; }
}

/* アクセシビリティ: アニメーション無効化設定 */
@media (prefers-reduced-motion: reduce) {
  .hero__slide.is-active { animation: none; }
  .hero__slide { transition: opacity 0.3s; }
  .works__track { animation: none; }
}