/* =====================================================
   CSS カスタムプロパティ（変数）
   ===================================================== */
:root {
  --bg:          #0a0a0a;
  --bg-card:     #111111;
  --bg-section:  #141414;
  --accent:      #c9a96e;
  --accent-lt:   #e8d5b0;
  --text:        #e8e4dc;
  --text-muted:  #888880;
  --border:      rgba(255,255,255,0.08);

  --font-serif:   'Noto Serif JP', 'Georgia', serif;
  --font-sans:    'Noto Sans JP', 'Hiragino Sans', 'Meiryo', sans-serif;
  --font-display: 'Cormorant Garamond', 'Georgia', serif;

  --header-h:    68px;
  --section-py:  120px;
  --cont-w:      1100px;
  --cont-px:     40px;

  --ease:        0.3s ease;
  --ease-slow:   0.6s ease;
}

/* =====================================================
   リセット
   ===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img  { max-width: 100%; height: auto; display: block; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
address { font-style: normal; }

/* =====================================================
   レイアウトユーティリティ
   ===================================================== */
.container {
  max-width: var(--cont-w);
  margin: 0 auto;
  padding: 0 var(--cont-px);
}
.container-narrow { max-width: 760px; }

.section         { padding: var(--section-py) 0; }
.section-dark    { background: var(--bg-section); }

/* =====================================================
   フェードインアニメーション（Intersection Observer用）
   ===================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   セクションヘッダー（共通）
   ===================================================== */
.section-header { text-align: center; margin-bottom: 64px; }

.section-eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--text);
  display: inline-block;
}
.section-title::after {
  content: '';
  display: block;
  width: 36px;
  height: 1px;
  background: var(--accent);
  margin: 18px auto 0;
}

/* =====================================================
   ヘッダー
   ===================================================== */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  transition: background var(--ease), backdrop-filter var(--ease);
}
.header.is-scrolled {
  background: rgba(10,10,10,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--cont-px);
  max-width: var(--cont-w);
  margin: 0 auto;
}

/* ロゴ */
.logo { display: flex; flex-direction: column; gap: 2px; line-height: 1; }
.logo-en {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
}
.logo-ja {
  font-family: var(--font-serif);
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: var(--accent);
}

/* ナビゲーション */
.nav-list { display: flex; align-items: center; gap: 36px; }
.nav-link {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  transition: color var(--ease);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--ease);
}
.nav-link:hover,
.nav-link.is-active { color: var(--text); }
.nav-link:hover::after,
.nav-link.is-active::after { width: 100%; }

/* ハンバーガーボタン */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 1px;
  background: var(--text);
  transition: transform var(--ease), opacity var(--ease);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* =====================================================
   ヒーロー
   ===================================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  animation: heroZoom 14s ease-out both;
}
@keyframes heroZoom {
  from { transform: scale(1.06); }
  to   { transform: scale(1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,10,10,0.0) 0%,
    rgba(10,10,10,0.15) 55%,
    rgba(10,10,10,0.5) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  animation: fadeUp 1.2s ease 0.4s both;
  align-self: flex-end;
  padding-bottom: 120px;
  width: 100%;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(36px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.45em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 22px;
}
.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--text-muted);
}

/* スクロールインジケーター */
.hero-scroll {
  position: absolute;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeUp 1.2s ease 1.2s both;
  cursor: pointer;
}
.hero-scroll-line {
  display: block;
  width: 1px; height: 52px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollPulse 1.6s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
  50%       { opacity: 1;   transform: scaleY(1); }
}
.hero-scroll-text {
  font-family: var(--font-display);
  font-size: 0.58rem;
  letter-spacing: 0.35em;
  color: var(--text-muted);
}

/* =====================================================
   コンセプト
   ===================================================== */
.concept-body { text-align: center; }

.concept-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 3.5vw, 1.95rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  line-height: 1.75;
  color: var(--text);
  padding: 44px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
  position: relative;
}
.concept-quote::before {
  content: '\201C';
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 5rem;
  color: var(--accent);
  opacity: 0.18;
  line-height: 1;
}

.concept-text {
  font-size: 0.92rem;
  line-height: 2.3;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* =====================================================
   メニュー
   ===================================================== */

/* スノーアイス */
.snowice-wrap { margin-bottom: 80px; text-align: center; }

.menu-sub-header { margin-bottom: 44px; }
.menu-sub-title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 6px;
}
.menu-sub-desc {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.snowice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 840px;
  margin: 0 auto;
}

.snowice-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform var(--ease), border-color var(--ease);
}
.snowice-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,169,110,0.5);
}

.snowice-img-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  background: #181818;
}
.snowice-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--ease-slow);
}
.snowice-card:hover .snowice-img-wrap img { transform: scale(1.06); }

.snowice-info { padding: 20px; text-align: center; }
.snowice-name {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.snowice-price {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent);
}
.snowice-price span {
  font-size: 0.62rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 4px;
}

/* ドリンク一覧 */
.beverages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-top: 1px solid var(--border);
  padding-top: 56px;
}

.bev-heading {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.bev-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.86rem;
}
.bev-name  { color: var(--text); letter-spacing: 0.04em; }
.bev-price { font-family: var(--font-display); font-size: 0.88rem; color: var(--accent); font-weight: 600; }

.menu-note {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 48px;
  letter-spacing: 0.12em;
}

/* =====================================================
   OFFICIAL PHOTO
   ===================================================== */
.photo-body { text-align: center; }

.photo-lead {
  font-size: 0.88rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 32px;
}

.btn-instagram {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 36px;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  transition: background var(--ease), color var(--ease);
}
.btn-instagram:hover {
  background: var(--accent);
  color: var(--bg);
}

/* =====================================================
   INFO
   ===================================================== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 60px;
  margin-bottom: 70px;
}

.info-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.info-dl dt {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 5px;
}
.info-dl dd {
  font-size: 0.92rem;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.info-address {
  font-size: 0.92rem;
  line-height: 2.1;
  color: var(--text);
  letter-spacing: 0.06em;
}

/* 連絡先ボタン */
.contact { text-align: center; margin-bottom: 76px; }

.contact-heading {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 28px;
}

.contact-btns {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.c-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 26px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  transition: all var(--ease);
}

.c-btn--ig {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: #fff;
}
.c-btn--ig:hover  { opacity: 0.82; transform: translateY(-2px); }

.c-btn--line {
  background: #06C755;
  color: #fff;
}
.c-btn--line:hover { opacity: 0.82; transform: translateY(-2px); }

.c-btn--tel {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.c-btn--tel:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* Darts Cafe */
.darts { border-top: 1px solid var(--border); padding-top: 56px; }

.darts-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.darts-img { overflow: hidden; }
.darts-img img {
  width: 100%; height: 300px;
  object-fit: cover;
  transition: transform var(--ease-slow);
}
.darts-img:hover img { transform: scale(1.04); }

.darts-eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--accent);
  margin-bottom: 8px;
}
.darts-title {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 18px;
}
.darts-body {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 2.1;
  margin-bottom: 28px;
}
.darts-link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  border-bottom: 1px solid rgba(201,169,110,0.4);
  padding-bottom: 2px;
  transition: border-color var(--ease);
}
.darts-link:hover { border-color: var(--accent); }

/* =====================================================
   フッター
   ===================================================== */
.footer {
  background: #000;
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-inner {
  max-width: var(--cont-w);
  margin: 0 auto;
  padding: 0 var(--cont-px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.footer-sub {
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: var(--text-muted);
}

.footer-sns { display: flex; align-items: center; gap: 18px; }
.footer-sns a { color: var(--text-muted); transition: color var(--ease); }
.footer-sns a:hover { color: var(--accent); }

.footer-copy {
  font-size: 0.66rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}

/* =====================================================
   モバイル対応（〜768px）
   ===================================================== */
@media (max-width: 768px) {
  :root {
    --section-py: 80px;
    --cont-px:    22px;
  }

  /* モバイルメニュー */
  .nav-toggle { display: flex; }

  .nav {
    position: fixed;
    inset: 0;
    background: rgba(10,10,10,0.97);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--ease);
    z-index: 99;
  }
  .nav.is-open { opacity: 1; pointer-events: auto; }
  .nav-list    { flex-direction: column; gap: 32px; }
  .nav-link    { font-size: 1.1rem; letter-spacing: 0.32em; }

  /* Snow Ice */
  .snowice-grid { grid-template-columns: 1fr; max-width: 300px; }

  /* ドリンク */
  .beverages { grid-template-columns: 1fr; gap: 36px; }

  /* INFO */
  .info-grid { grid-template-columns: 1fr; gap: 36px; }

  /* Darts */
  .darts-inner { grid-template-columns: 1fr; gap: 28px; }

  /* フッター */
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .contact-btns { flex-direction: column; align-items: stretch; }
  .c-btn         { justify-content: center; }
  .hero-title    { font-size: 2.1rem; }
}

/* タブレット（769px〜1024px） */
@media (min-width: 769px) and (max-width: 1024px) {
  :root { --cont-px: 30px; }
  .nav-list { gap: 22px; }
  .snowice-grid  { gap: 20px; }
  .beverages     { gap: 28px; }
  .darts-inner   { gap: 36px; }
}