/* =========================================
   ワタナベ写真館 スタイルシート
   ※色や余白を調整したい場合は、下記の :root の値を変更してください
   ========================================= */

:root {
  --c-bg:        #f7fbfc;   /* 全体背景：ほんのり水色がかった白 */
  --c-bg-soft:   #eaf5f7;   /* セクション背景：やさしい水色 */
  --c-white:     #ffffff;
  --c-blue:      #b6e0ea;   /* 薄い水色（アクセント） */
  --c-blue-d:    #7fc4d4;   /* 濃いめの水色 */
  --c-green:     #c8e3c7;   /* やさしいグリーン */
  --c-green-d:   #8bc28a;   /* 濃いめのグリーン */
  --c-text:      #44524f;   /* 本文：黒すぎないグレー */
  --c-text-l:    #7a8786;   /* 補足テキスト */
  --c-line:      #e4eef0;

  --font-jp:     'Zen Maru Gothic', 'Hiragino Maru Gothic ProN', sans-serif;
  --font-serif:  'Noto Serif JP', 'Hiragino Mincho ProN', serif;

  --radius:      24px;
  --radius-sm:   16px;
  --shadow:      0 8px 30px rgba(127, 196, 212, 0.15);
}

/* ========== リセット ========== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body {
  font-family: var(--font-jp);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: opacity .2s; }
a:hover { opacity: .7; }
ul, ol { list-style: none; }

/* ========== 共通 ========== */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow { max-width: 800px; }

.section {
  padding: 100px 0;
  position: relative;
}

.section-head {
  text-align: center;
  margin-bottom: 60px;
}
.section-en {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .25em;
  color: var(--c-blue-d);
  margin-bottom: 8px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 500;
  color: var(--c-text);
  letter-spacing: .1em;
  position: relative;
  display: inline-block;
  padding-bottom: 14px;
}
.section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--c-green-d);
  border-radius: 2px;
}
.section-lead {
  margin-top: 16px;
  color: var(--c-text-l);
  font-size: 15px;
}

/* ========== シャボン玉装飾 ========== */
.bubbles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.bubbles span {
  position: absolute;
  bottom: -100px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%,
    rgba(255,255,255,.9),
    rgba(182, 224, 234, .35) 60%,
    rgba(200, 227, 199, .15));
  box-shadow: inset 0 0 12px rgba(255,255,255,.6),
              0 0 20px rgba(127, 196, 212, .15);
  animation: floatUp 22s linear infinite;
  opacity: .7;
}
.bubbles span:nth-child(1) { left: 5%;  width: 80px;  height: 80px;  animation-duration: 25s; animation-delay: 0s; }
.bubbles span:nth-child(2) { left: 15%; width: 50px;  height: 50px;  animation-duration: 18s; animation-delay: 3s; }
.bubbles span:nth-child(3) { left: 25%; width: 110px; height: 110px; animation-duration: 28s; animation-delay: 6s; }
.bubbles span:nth-child(4) { left: 40%; width: 40px;  height: 40px;  animation-duration: 16s; animation-delay: 2s; }
.bubbles span:nth-child(5) { left: 55%; width: 70px;  height: 70px;  animation-duration: 22s; animation-delay: 8s; }
.bubbles span:nth-child(6) { left: 65%; width: 95px;  height: 95px;  animation-duration: 26s; animation-delay: 1s; }
.bubbles span:nth-child(7) { left: 75%; width: 55px;  height: 55px;  animation-duration: 20s; animation-delay: 4s; }
.bubbles span:nth-child(8) { left: 85%; width: 75px;  height: 75px;  animation-duration: 24s; animation-delay: 7s; }
.bubbles span:nth-child(9) { left: 92%; width: 45px;  height: 45px;  animation-duration: 19s; animation-delay: 5s; }
.bubbles span:nth-child(10){ left: 35%; width: 60px;  height: 60px;  animation-duration: 21s; animation-delay: 10s; }

@keyframes floatUp {
  0%   { transform: translateY(0) translateX(0); opacity: 0; }
  10%  { opacity: .7; }
  50%  { transform: translateY(-50vh) translateX(20px); }
  90%  { opacity: .7; }
  100% { transform: translateY(-110vh) translateX(-20px); opacity: 0; }
}

/* 全コンテンツをシャボン玉より前面に */
header, section, footer { position: relative; z-index: 1; }

/* ========== ヘッダー ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  box-shadow: 0 1px 0 rgba(127, 196, 212, .1);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo-jp {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: .1em;
  color: var(--c-text);
}
.logo-en {
  font-size: 10px;
  letter-spacing: .25em;
  color: var(--c-blue-d);
}

.nav-menu {
  display: flex;
  gap: 28px;
}
.nav-menu a {
  font-size: 14px;
  color: var(--c-text);
  letter-spacing: .05em;
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--c-green-d);
  transition: width .3s, left .3s;
}
.nav-menu a:hover { opacity: 1; }
.nav-menu a:hover::after { width: 100%; left: 0; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: .3s;
}
.nav-toggle span:nth-child(1) { top: 12px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle.is-open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* ========== ボタン共通 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 16px 36px;
  border-radius: 999px;
  font-family: var(--font-jp);
  font-weight: 500;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
  line-height: 1.3;
}
.btn-tel {
  background: linear-gradient(135deg, var(--c-green) 0%, var(--c-blue) 100%);
  color: var(--c-text);
  box-shadow: var(--shadow);
}
.btn-tel:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(127, 196, 212, .25);
  opacity: 1;
}
.btn-label {
  font-size: 13px;
  letter-spacing: .15em;
}
.btn-number {
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: .05em;
  margin-top: 2px;
}
.btn-large { padding: 22px 48px; }
.btn-large .btn-number { font-size: 26px; }

/* ========== ファーストビュー ========== */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 64px;
  padding-bottom: 6vh;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}
.hero-image {
  position: absolute;
  inset: 0;
  /* ▼ メイン写真：images/hero-1.jpg を表示
        差し替える場合は、url(...) の中のファイル名を変更してください ▼ */
  background:
    linear-gradient(rgba(247, 251, 252, .25), rgba(247, 251, 252, .45)),
    url('../images/hero-1.jpg') center/cover no-repeat;
  z-index: 0;
}
.hero-text {
  position: relative;
  z-index: 2;
  text-align: center;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(10px);
  padding: 28px 32px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 420px;
  margin: 0 24px;
}
.hero-sub {
  font-family: var(--font-serif);
  letter-spacing: .25em;
  color: var(--c-blue-d);
  font-size: 12px;
  margin-bottom: 10px;
}
.hero-catch {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(22px, 4vw, 30px);
  letter-spacing: .12em;
  line-height: 1.5;
  margin-bottom: 10px;
}
.hero-name {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: .25em;
  color: var(--c-text-l);
  margin-bottom: 20px;
}
.hero-btn { margin-top: 4px; }
.hero-btn.btn-tel { padding: 12px 28px; }
.hero-btn .btn-label { font-size: 12px; }
.hero-btn .btn-number { font-size: 18px; }

/* ========== コンセプト ========== */
.concept { background: var(--c-bg); }
.concept-body {
  text-align: center;
  font-family: var(--font-serif);
  line-height: 2.2;
  color: var(--c-text);
  font-size: 15px;
}
.concept-body p + p { margin-top: 24px; }

/* ========== 選ばれる理由 ========== */
.reason { background: var(--c-bg-soft); }
.reason-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.reason-item {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .3s;
}
.reason-item:hover { transform: translateY(-4px); }
.reason-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-green));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.reason-icon svg {
  width: 40px;
  height: 40px;
  fill: none;
  stroke: var(--c-white);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.reason-item h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 12px;
  letter-spacing: .05em;
}
.reason-item p {
  font-size: 14px;
  color: var(--c-text-l);
  line-height: 1.8;
}

/* ========== 撮影メニュー ========== */
.menu { background: var(--c-bg); }
.menu-group { margin-bottom: 50px; }
.menu-group:last-of-type { margin-bottom: 30px; }
.menu-group-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  text-align: center;
  letter-spacing: .15em;
  color: var(--c-blue-d);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--c-line);
}
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
}
.menu-card {
  background: var(--c-white);
  border-radius: var(--radius-sm);
  padding: 28px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: 0 4px 20px rgba(127, 196, 212, .08);
  border: 1px solid var(--c-line);
  transition: transform .3s, box-shadow .3s;
}
.menu-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.menu-icon { font-size: 32px; }
.menu-name {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .08em;
}
.menu-note {
  text-align: center;
  margin-top: 30px;
  font-size: 13px;
  color: var(--c-text-l);
}

/* ========== ギャラリー ========== */
.gallery { background: var(--c-bg-soft); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 180px;
  gap: 16px;
}
.gallery-item {
  border-radius: var(--radius-sm);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
  transition: transform .4s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.gallery-item:hover { transform: scale(1.02); }

/* ▼ ギャラリー画像：images/ フォルダの写真を表示
      差し替える場合は、url(...) の中のファイル名を変更してください ▼ */
.gallery-item--1 { background-image: url('../images/hero-2.jpg');     grid-column: span 2; grid-row: span 2; }
.gallery-item--2 { background-image: url('../images/gallery-02.jpg'); }
.gallery-item--3 { background-image: url('../images/hero-3.jpg');     }
.gallery-item--4 { background-image: url('../images/gallery-03.jpg'); }
.gallery-item--5 { background-image: url('../images/gallery-01.png'); }
.gallery-item--6 { background-image: url('../images/hero-4.jpg');     grid-column: span 2; }

/* ========== 撮影の流れ ========== */
.flow { background: var(--c-bg); }
.flow-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: flow;
}
.flow-item {
  position: relative;
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 36px 24px 28px;
  text-align: center;
  box-shadow: var(--shadow);
}
.flow-num {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
  color: var(--c-blue-d);
  letter-spacing: .05em;
  margin-bottom: 10px;
  padding: 6px 18px;
  background: var(--c-bg-soft);
  border-radius: 999px;
}
.flow-item h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 10px;
}
.flow-item p {
  font-size: 14px;
  color: var(--c-text-l);
  line-height: 1.8;
}

/* ========== よくある質問 ========== */
.faq { background: var(--c-bg-soft); }
.faq-list { display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--c-white);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 20px rgba(127, 196, 212, .08);
  overflow: hidden;
}
.faq-q {
  position: relative;
  padding: 22px 60px 22px 60px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 16px;
  cursor: pointer;
  user-select: none;
  transition: background .2s;
}
.faq-q:hover { background: var(--c-bg); }
.faq-q::before {
  content: 'Q';
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  background: var(--c-blue);
  color: var(--c-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}
.faq-q::after {
  content: '＋';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-blue-d);
  font-size: 20px;
  transition: transform .3s;
}
.faq-item.is-open .faq-q::after { transform: translateY(-50%) rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  padding: 0 60px 0 60px;
  font-size: 14px;
  color: var(--c-text-l);
  line-height: 1.9;
  transition: max-height .35s ease, padding .35s ease;
  position: relative;
}
.faq-item.is-open .faq-a {
  max-height: 200px;
  padding: 0 60px 22px 60px;
}
.faq-a::before {
  content: 'A';
  position: absolute;
  left: 22px;
  top: 0;
  width: 28px;
  height: 28px;
  background: var(--c-green);
  color: var(--c-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

/* ========== アクセス ========== */
.access { background: var(--c-bg); }
.access-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: stretch;
}
.access-info {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}
.access-info dl {
  display: grid;
  grid-template-columns: 90px 1fr;
  row-gap: 16px;
  margin-bottom: 28px;
}
.access-info dt {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--c-blue-d);
  letter-spacing: .15em;
  padding-top: 2px;
}
.access-info dd {
  font-size: 15px;
  line-height: 1.7;
}
.access-info .btn { width: 100%; }
.access-map {
  min-height: 380px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--c-bg-soft);
}
.access-map iframe { display: block; width: 100%; height: 100%; min-height: 380px; }

/* ========== お問い合わせ ========== */
.contact { background: var(--c-bg-soft); }
.contact-body {
  text-align: center;
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 50px 40px;
  box-shadow: var(--shadow);
}
.contact-body > p {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 2;
  margin-bottom: 30px;
}
.contact-note {
  margin-top: 24px;
  font-size: 13px;
  color: var(--c-text-l);
}

/* ========== フッター ========== */
.site-footer {
  background: linear-gradient(135deg, var(--c-blue) 0%, var(--c-green) 100%);
  padding: 50px 0 30px;
  text-align: center;
  color: var(--c-text);
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: .2em;
  margin-bottom: 12px;
}
.footer-address {
  font-size: 13px;
  margin-bottom: 20px;
  line-height: 1.8;
}
.copyright {
  font-size: 11px;
  letter-spacing: .15em;
  color: rgba(68, 82, 79, .7);
}

/* =========================================
   レスポンシブ（スマホ表示）
   ========================================= */
@media (max-width: 860px) {
  .section { padding: 70px 0; }
  .section-head { margin-bottom: 40px; }

  /* スマホメニュー */
  .nav-toggle { display: block; }
  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, .98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    gap: 0;
    padding: 20px 0;
    transform: translateY(-120%);
    transition: transform .35s ease;
    box-shadow: 0 8px 20px rgba(127, 196, 212, .15);
  }
  .nav-menu.is-open { transform: translateY(0); }
  .nav-menu li { width: 100%; }
  .nav-menu a {
    display: block;
    padding: 14px 24px;
    text-align: center;
    border-bottom: 1px dashed var(--c-line);
  }
  .nav-menu a::after { display: none; }

  .hero { min-height: 90vh; padding-top: 80px; }
  .hero-text { padding: 40px 28px; margin: 0 16px; }

  .access-wrap {
    grid-template-columns: 1fr;
  }
  .access-map { min-height: 280px; }
  .access-map iframe { min-height: 280px; }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 150px;
  }
  .gallery-item--1 { grid-column: span 2; grid-row: span 2; }
  .gallery-item--6 { grid-column: span 2; }

  .contact-body { padding: 36px 24px; }
  .btn-large { padding: 18px 32px; }
  .btn-large .btn-number { font-size: 22px; }

  .access-info dl { grid-template-columns: 80px 1fr; }
}

@media (max-width: 480px) {
  .menu-grid { grid-template-columns: repeat(2, 1fr); }
  .menu-card { padding: 22px 12px; }
  .menu-icon { font-size: 28px; }
  .reason-list { grid-template-columns: 1fr; }
  .flow-list { grid-template-columns: 1fr; }
  .faq-q { padding: 18px 50px 18px 56px; font-size: 15px; }
  .faq-q::before, .faq-a::before { left: 16px; width: 26px; height: 26px; font-size: 13px; }
  .faq-item.is-open .faq-a { padding: 0 24px 18px 56px; max-height: 300px; }
  .faq-a { padding: 0 24px 0 56px; }
}