/* ==========================================================
   X'ana（シャナ）ホームページ スタイルシート
   背景：ブラック / 文字：ホワイト / アクセント：シアン
   PC幅：900px固定コンテナ / レスポンシブ対応
   ========================================================== */

:root {
  --color-bg: #000000;
  --color-bg-alt: #313328;
  --color-text: #f5f5f5;
  --color-text-dim: #b9b9bd;
  --color-accent: #5be3f0;
  --color-text-accent: #fffbe0;
  --color-accent-soft: rgba(91, 227, 240, 0.15);
  --color-border: rgba(255, 255, 255, 0.14);
  --container-width: 900px;
  --font-en: Georgia, "Times New Roman", serif;
  --font-jp: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --font-logo: "Kaushan Script", cursive;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-jp);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-text-accent);
  text-decoration: none;
}

/* ---------- レイアウト共通 ---------- */

.section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 72px 24px;
  border-bottom: 1px solid var(--color-border);
}

.section:last-of-type {
  border-bottom: none;
}

.section-title {
  font-family: var(--font-en);
  font-size: 28px;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--color-text-accent);
  margin: 0 0 40px;
  position: relative;
  padding-bottom: 16px;
}

.section-title::before {
  content: "";
  position: absolute;
  top: 40%;
  left: 50%;
  width: 420px;
  height: 120px;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at 50% 50%, rgba(153, 51, 204, 0.45) 0%, rgba(153, 51, 204, 0.18) 45%, transparent 75%);
  z-index: -1;
  pointer-events: none;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 2px;
  background: var(--color-text-accent);
}

/* ---------- ヘッダー ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(6px);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-logo);
  font-size: 26px;
  line-height: 1;
  color: var(--color-text);
}

.brand-kana {
  font-family: var(--font-jp);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
}

.site-nav {
  display: flex;
  gap: 28px;
}

.site-nav a {
  color: var(--color-text);
  font-size: 14px;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--color-text-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ---------- ヒーロー ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px;
  background: var(--color-bg);
}

.hero-scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  display: inline-flex;
  color: var(--color-text-dim);
  opacity: 0.8;
  animation: hero-scroll-bounce 2s ease-in-out infinite;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.hero-scroll-cue:hover {
  color: var(--color-text-accent);
  opacity: 1;
}

@keyframes hero-scroll-bounce {
  0%, 100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 10px);
  }
}

.hero-inner {
  position: relative;
  max-width: 560px;
}

.hero-inner::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 900px;
  height: 900px;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at 50% 50%, rgba(153, 51, 204, 0.6) 0%, rgba(153, 51, 204, 0.28) 30%, rgba(153, 51, 204, 0.12) 50%, transparent 74%);
  z-index: -1;
  pointer-events: none;
}

.hero-logo {
  width: 240px;
  max-width: 60vw;
  margin: 0 auto 32px;
  box-shadow:
    0 0 30px rgba(153, 51, 204, 1),
    0 0 70px rgba(153, 51, 204, 0.7),
    0 0 140px rgba(153, 51, 204, 0.4),
    0 0 220px rgba(153, 51, 204, 0.2);
}

.hero-copy {
  font-family: var(--font-en);
  font-size: 26px;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin: 0 0 12px;
}

.hero-sub {
  font-size: 14px;
  color: var(--color-text-dim);
  letter-spacing: 0.08em;
  margin: 0 0 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- ボタン ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.05em;
  transition: all 0.25s ease;
  border: 1px solid var(--color-accent);
}

.btn-primary {
  background: var(--color-accent);
  color: #000;
}

.btn-primary:hover {
  background: transparent;
  color: var(--color-accent);
}

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

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-text-accent);
}

.btn-instagram {
  background: rgba(153, 51, 204, 0.5);
  border-color: rgba(153, 51, 204, 0.5);
  color: #fff;
}

.btn-instagram:hover {
  background: rgba(153, 51, 204, 0.8);
  border-color: rgba(153, 51, 204, 0.8);
  color: #fff;
}

/* ---------- お店について ---------- */

.about-text {
  text-align: center;
  font-size: 15px;
  color: var(--color-text-dim);
}

/* ---------- 料金 ---------- */

.menu-block {
  margin-bottom: 70px;
}

.menu-block:last-child {
  margin-bottom: 0;
}

.menu-block-title {
  font-family: var(--font-jp);
  font-size: 18px;
  letter-spacing: 0.05em;
  color: #fff;
  margin: 0 0 16px;
  text-align: center;
}

.info-table {
  width: 100%;
  height: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.info-table th,
.info-table td {
  border: 1px solid var(--color-border);
  padding: 14px 16px;
  text-align: left;
}

.info-table th {
  width: 30%;
  color: var(--color-text-accent);
  font-weight: 500;
  background: var(--color-bg-alt);
  text-align: center;
}

/* ---------- セット料金カード ---------- */

.price-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.price-card {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, var(--color-accent-soft) 0%, transparent 70%);
}

.price-card-title {
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.2;
  color: #fff;
  margin: 0;
  padding: 16px;
  min-height: 1.4em;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
}

.price-card-list {
  margin: 0;
}

.price-card-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 16px;
  min-height: 1.4em;
  font-size: 14px;
  line-height: 1.2;
}

.price-card-row + .price-card-row {
  border-top: 1px solid var(--color-border);
}

.price-card-row dt {
  margin: 0;
  color: #fff;
  font-weight: 500;
}

.price-card-row dd {
  margin: 0;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
}

.price-card-time {
  margin: 0;
  padding: 16px;
  min-height: 1.4em;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
  color: #fff;
  text-align: center;
}

.menu-note {
  font-size: 12px;
  color: var(--color-text-dim);
  margin-top: 12px;
  text-align: center;
}

.note {
  font-size: 12px;
  color: var(--color-text-dim);
}

/* ---------- ギャラリー ---------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.gallery-item {
  overflow: hidden;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 5;
  box-shadow: 0 0 4px rgba(153, 51, 204, 0.9), 0 0 18px rgba(153, 51, 204, 0.7);
}

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

.gallery-item:hover img {
  transform: scale(1.06);
}

/* ---------- アクセス ---------- */

.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.access-info {
  height: 100%;
  border-radius: 6px;
  overflow: hidden;
}

.access-map {
  height: 100%;
}

.access-map iframe {
  width: 100%;
  height: 280px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  filter: grayscale(40%) invert(92%) contrast(90%);
}

@media (min-width: 721px) {
  .access-map iframe {
    height: 100%;
  }
}

.text-white {
  color: #fff;
}

/* ---------- お問い合わせ ---------- */

.contact-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- フッター ---------- */

.site-footer {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-dim);
  font-size: 12px;
}

.footer-wordmark {
  font-size: 30px;
  margin: 0 auto 16px;
  justify-content: center;
  opacity: 0.85;
}

.copyright {
  margin-top: 8px;
  letter-spacing: 0.05em;
}

/* ---------- ページトップボタン ---------- */

.page-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.page-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-top:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.page-top-arrow {
  font-size: 18px;
  line-height: 1;
}

/* ==========================================================
   レスポンシブ対応
   ========================================================== */

@media (max-width: 720px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.96);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 18px;
    display: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

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

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

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

  .section {
    padding: 56px 20px;
  }

  .section-title {
    font-size: 24px;
  }

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

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-actions .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    min-height: 100vh;
    min-height: 100dvh;
  }

  .hero-copy {
    font-size: 22px;
  }

  .btn {
    padding: 11px 22px;
    font-size: 13px;
  }

  .price-cards {
    grid-template-columns: 1fr;
  }
}