/* =============================================================================
   01. グローバル変数・リセット
   ============================================================================= */
:root {
  /* ===== カラー：ダーク／海系 ===== */
  --midnight:   #091726;
  --deep-sea:   #0d2137;
  --ocean:      #1b4965;
  --teal:       #3d8b9e;
  --turquoise:  #5ec4b6;

  /* ===== カラー：暖色／サンド系 ===== */
  --coral:       #e07850;
  --coral-light: #f09a70;
  --amber:       #f0b860;
  --sand:        #f4ead5;
  --sand-light:  #faf5ec;
  --cream:       #fffdf8;

  /* ===== カラー：ニュートラル ===== */
  --stone:       #a09888;
  --stone-light: #c8bfb0;
  --ink:         #2c2418;
  --ink-light:   #5a4e3c;

  /* ===== カラー：サービス ===== */
  --line-green:  #06c755;

  /* ===== フォント ===== */
  --ff-display: 'Cormorant Garamond', serif;      /* 見出し装飾（英字） */
  --ff-body:    'Zen Kaku Gothic New', sans-serif; /* 本文（和文） */
  --ff-label:   'Josefin Sans', sans-serif;        /* ラベル・ナビ（英字） */
  --ff-number:  'DM Sans', sans-serif;             /* 数値表示 */
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--ff-body);
  color: var(--ink);
  background: var(--cream);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 全画面にフィルムグレインを重ねて、印刷物のような質感を出す */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 128px;
}

/* =============================================================================
   02. タイポグラフィ・ボタン基底
   ============================================================================= */
.page-hero {
  position: relative;
  padding: 160px 40px 80px;
  background: linear-gradient(180deg, var(--midnight) 0%, var(--deep-sea) 100%);
  text-align: center;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(94,196,182,.08) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero .section-eyebrow {
  font-family: var(--ff-label);
  font-size: 13px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--turquoise);
  margin-bottom: 16px;
}
.page-hero .section-heading {
  font-family: var(--ff-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 300;
  color: #fff;
  letter-spacing: 4px;
  line-height: 1.3;
  margin-bottom: 20px;
}

/* =============================================================================
   03. ヘッダー・ナビゲーション
   ============================================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background .4s, padding .4s, backdrop-filter .4s;
  background: rgba(9,23,38,.85);
  backdrop-filter: blur(16px);
}
/* スクロール時に背景を付与してブラー化（JSで .is-scrolled を付け外し） */
.site-header.is-scrolled {
  padding: 14px 40px;
}

.site-header-logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
}
.site-header-logo-main {
  font-family: var(--ff-display);
  font-size: 28px;
  font-weight: 300;
  color: #fff;
  letter-spacing: 8px;
  line-height: 1;
}
.site-header-logo-sub {
  font-family: var(--ff-label);
  font-size: 11px;
  color: rgba(255,255,255,.5);
  letter-spacing: 5px;
  text-transform: uppercase;
}

.site-header-nav {
  display: flex;
  align-items: center;
  list-style: none;
}
.site-header-nav-list {
  display: flex;
  gap: 36px;
  align-items: center;
  list-style: none;
}
.site-header-nav-list a {
  font-family: var(--ff-label);
  font-size: 13px;
  color: rgba(255,255,255,.7);
  text-decoration: none;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: color .3s;
  position: relative;
}
.site-header-nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--coral);
  transition: width .3s;
}
.site-header-nav-list a:hover {
  color: #fff;
}
.site-header-nav-list a:hover::after {
  width: 100%;
}

/* ハンバーガーメニュー */
.site-header-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  align-items: center;
  justify-content: center;
}
.site-header-hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: rgba(255,255,255,.8);
  transition: transform .3s, opacity .3s;
}
.site-header-hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.site-header-hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.site-header-hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* モバイルメニュー（ドロワー） */
.site-nav-drawer {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(9,23,38,.96);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.site-nav-drawer.is-open {
  display: flex;
}
.site-nav-drawer a {
  font-family: var(--ff-display);
  font-size: 28px;
  font-weight: 300;
  color: rgba(255,255,255,.8);
  text-decoration: none;
  letter-spacing: 4px;
  transition: color .3s;
}
.site-nav-drawer a:hover {
  color: var(--coral-light);
}

/* =============================================================================
   04. コンタクト情報バー
   ============================================================================= */
.contact-info-bar {
  background: var(--sand);
  padding: 32px 40px;
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}
.contact-info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--ink-light);
}
.contact-info-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ocean);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-info-item-icon svg {
  width: 18px;
  height: 18px;
  fill: #fff;
}
.contact-info-item strong {
  display: block;
  font-family: var(--ff-number);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 1px;
}
.contact-info-item a {
  color: inherit;
  text-decoration: none;
}
.contact-info-item a:hover strong {
  color: var(--coral);
}

/* =============================================================================
   05. フォームセクション
   ============================================================================= */
.form-section {
  padding: 80px 40px 100px;
  max-width: 800px;
  margin: 0 auto;
}

.form-back-link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  color: var(--stone);
  text-decoration: none;
  margin-bottom: 40px;
  transition: color .3s;
  font-family: var(--ff-body);
}
.form-back-link:hover {
  color: var(--coral);
}

/* フォーム要素 */
.form-group {
  margin-bottom: 28px;
}
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: .5px;
}
.form-group-label-required {
  display: inline-block;
  font-size: 11px;
  font-weight: 400;
  color: #fff;
  background: var(--coral);
  padding: 2px 8px;
  border-radius: 2px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 1px;
}
.form-group-label-optional {
  display: inline-block;
  font-size: 11px;
  font-weight: 400;
  color: var(--stone);
  background: var(--sand);
  padding: 2px 8px;
  border-radius: 2px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 1px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--ff-body);
  font-size: 15px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--sand);
  border-radius: 4px;
  outline: none;
  transition: border-color .3s, box-shadow .3s;
  -webkit-appearance: none;
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(61,139,158,.12);
}
textarea {
  min-height: 160px;
  resize: vertical;
  line-height: 1.8;
}
select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23a09888' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* プライバシーチェック */
.form-privacy-check {
  margin: 36px 0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.form-privacy-check input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--teal);
  margin-top: 2px;
  flex-shrink: 0;
}
.form-privacy-check label {
  font-size: 14px;
  color: var(--ink-light);
  line-height: 1.7;
  cursor: pointer;
}
.form-privacy-check label a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 送信ボタン */
.form-submit {
  text-align: center;
  margin-top: 40px;
}
.form-submit-button {
  display: inline-block;
  font-family: var(--ff-label);
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #fff;
  background: var(--coral);
  border: none;
  padding: 18px 64px;
  border-radius: 2px;
  cursor: pointer;
  transition: background .3s, transform .2s;
}
.form-submit-button:hover {
  background: var(--coral-light);
  transform: translateY(-1px);
}
.form-submit-button:active {
  transform: translateY(0);
}

/* 注記 */
.form-note {
  text-align: center;
  font-size: 13px;
  color: var(--stone);
  margin-top: 20px;
  line-height: 1.7;
}

/* =============================================================================
   06. ブレッドクラムバー
   ============================================================================= */
/* =============================================================================
   90. フッター
   ============================================================================= */
/* =============================================================================
   99. レスポンシブ
   ============================================================================= */
@media (max-width: 768px) {
  .site-header {
    padding: 16px 20px;
  }
  .site-header.is-scrolled {
    padding: 12px 20px;
  }
  .site-header-nav-list {
    display: none;
  }
  .site-header-hamburger {
    display: flex;
  }

  .page-hero {
    padding: 120px 20px 60px;
  }

  .contact-info-bar {
    padding: 24px 20px;
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }

  .form-section {
    padding: 48px 20px 72px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}