/* ===========================
   LaBelleVie - Main Stylesheet
   Black × Gold Luxury Design
   Mobile-First / 2025 最終版
   =========================== */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: #0a0a0a;
  color: #f0ece4;
  font-family: 'Noto Serif JP', serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* --- Layout --- */
.section-inner {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===========================
   FIXED HEADER
   =========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: #0a0a0a;
  border-bottom: 1px solid rgba(201, 168, 76, 0.2);
  padding: 12px 20px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto;
}

/* ブランド名のみ中央表示 */
.header-inner--brand {
  justify-content: center;
}

/* ヘッダーブランド名 */
.header-brand-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: rgba(201, 168, 76, 0.9);
  line-height: 1;
  white-space: nowrap;
}

/* ヘッダーナビ */
.header-inner--nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
  max-width: 600px;
  margin: 0 auto;
}

.header-nav-item {
  font-family: 'Noto Serif JP', serif;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: rgba(201, 168, 76, 0.9);
  line-height: 1;
  white-space: nowrap;
  transition: opacity 0.2s;
}

a.header-nav-item:hover {
  opacity: 0.7;
}

.header-nav-item--nolink {
  color: rgba(201, 168, 76, 0.7);
}

.header-nav-sep {
  font-size: 11px;
  color: rgba(201, 168, 76, 0.4);
  line-height: 1;
}

/* ===========================
   HEADER LINE BUTTON
   ※ ボタンは変更不可
   =========================== */
.btn-line-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background-color: #F2CA00;
  color: #111111;
  border-radius: 100px;
  padding: 8px 16px;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity 0.2s;
}

.btn-line-header:hover {
  opacity: 0.85;
}

.btn-line-header .line-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.btn-line-header .line-text {
  line-height: 1;
  font-size: 13px;
}

/* ===========================
   HERO SECTION
   =========================== */
.hero-section {
  background-color: #0a0a0a;
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 20px 32px;
  text-align: center;
}

.hero-content {
  max-width: 340px;
  margin: 0 auto;
}

.hero-salon-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: #C9A84C;
  margin-bottom: 16px;
  line-height: 1.6;
}

.hero-headline {
  font-family: 'Noto Serif JP', serif;
  font-weight: 400;
  color: #ffffff;
  letter-spacing: 0.05em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6em;
}

.hero-line1,
.hero-line2 {
  display: block;
  text-align: center;
}

.hero-line1 {
  font-size: 28px;
  line-height: 1.5;
  letter-spacing: 0.05em;
}

.hero-line2 {
  font-size: 16px;
  line-height: 1.7;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* ファーストビュー サブコピー */
.hero-subcopy {
  font-family: 'Noto Serif JP', serif;
  font-size: 14px;
  font-weight: 300;
  line-height: 2;
  color: rgba(240, 236, 228, 0.8);
  text-align: center;
  letter-spacing: 0.06em;
  margin-top: 28px;
}

/* ファーストビュー ボタングループ */
.hero-btn-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: 32px;
}

/* ファーストビュー 補助リンク */
.hero-aux-link {
  text-align: center;
  margin-top: 20px;
}

.hero-aux-anchor {
  font-family: 'Noto Serif JP', serif;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: rgba(201, 168, 76, 0.75);
  border-bottom: 1px solid rgba(201, 168, 76, 0.3);
  padding-bottom: 2px;
  transition: opacity 0.2s;
}

.hero-aux-anchor:hover {
  opacity: 0.7;
}

/* ===========================
   LEAD SECTION
   =========================== */
.lead-section {
  padding: 44px 0;
  border-top: 1px solid rgba(201, 168, 76, 0.15);
}

.lead-text {
  font-family: 'Noto Serif JP', serif;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.8;
  color: rgba(240, 236, 228, 0.85);
  text-align: center;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.lead-text:last-child {
  margin-bottom: 0;
}

/* ===========================
   BRANCH SECTIONS
   =========================== */
.branch-section {
  padding: 44px 0;
  border-top: 1px solid rgba(201, 168, 76, 0.15);
  text-align: center;
}

.branch-number {
  font-family: 'Cormorant Garamond', 'EB Garamond', serif;
  font-size: 12px;
  font-weight: 400;
  color: #C9A84C;
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}

.branch-divider {
  width: 28px;
  height: 1px;
  background-color: #C9A84C;
  margin: 0 auto 20px;
}

.branch-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 400;
  color: #ffffff;
  line-height: 1.6;
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}

.branch-desc {
  font-family: 'Noto Serif JP', serif;
  font-size: 16px;
  font-weight: 300;
  color: rgba(201, 168, 76, 0.85);
  line-height: 1.8;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.branch-sub {
  font-family: 'Noto Serif JP', serif;
  font-size: 13px;
  font-weight: 300;
  color: rgba(240, 236, 228, 0.6);
  line-height: 1.6;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}

/* Button group */
.btn-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ===========================
   MENU BUTTON
   ※ ボタンは変更不可
   =========================== */
.btn-menu {
  display: block;
  width: 100%;
  padding: 16px 20px;
  background-color: transparent;
  border: 1.5px solid #C9A84C;
  border-radius: 100px;
  font-family: 'Noto Serif JP', serif;
  font-size: 14px;
  font-weight: 400;
  color: #C9A84C;
  text-align: center;
  letter-spacing: 0.08em;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  margin-top: 20px;
}

.btn-menu:hover {
  background-color: rgba(201, 168, 76, 0.08);
}

.btn-group .btn-menu {
  margin-top: 0;
}

/* ===========================
   LINE BUTTON IN SECTION
   ※ ボタンは変更不可
   =========================== */
.btn-line-section {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: #F2CA00;
  color: #111111;
  border-radius: 100px;
  padding: 16px 24px;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.03em;
  width: 100%;
  margin-top: 20px;
  transition: opacity 0.2s;
}

.btn-line-section:hover {
  opacity: 0.85;
}

.line-icon-sm {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

/* ===========================
   SUPPLEMENT SECTION
   =========================== */
.supplement-section {
  padding: 44px 0;
  border-top: 1px solid rgba(201, 168, 76, 0.15);
}

.supplement-text {
  font-family: 'Noto Serif JP', serif;
  font-size: 13px;
  font-weight: 300;
  color: rgba(240, 236, 228, 0.6);
  line-height: 1.6;
  text-align: center;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}

.supplement-text:last-child {
  margin-bottom: 0;
}

/* ===========================
   SALON INFO SECTION
   =========================== */
.salon-info-section {
  padding: 44px 0;
  border-top: 1px solid rgba(201, 168, 76, 0.15);
  text-align: center;
}

.salon-header-line {
  width: 100%;
  max-width: 432px;
  margin: 0 auto 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #C9A84C 30%, #C9A84C 70%, transparent);
}

.salon-info-title {
  font-family: 'Cormorant Garamond', 'EB Garamond', serif;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: #C9A84C;
  margin-bottom: 18px;
  text-transform: uppercase;
}

.salon-name-text {
  font-family: 'Noto Serif JP', serif;
  font-size: 16px;
  font-weight: 400;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: 0.06em;
  text-align: center;
}

.salon-details {
  text-align: left;
}

.salon-detail-row {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.8;
}

.detail-label {
  flex-shrink: 0;
  color: #C9A84C;
  font-size: 16px;
  letter-spacing: 0.04em;
  width: 64px;
}

.detail-value {
  color: rgba(240, 236, 228, 0.85);
  letter-spacing: 0.02em;
}

.btn-map {
  margin-top: 16px;
  display: block;
}

/* ===========================
   FOOTER
   =========================== */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid rgba(201, 168, 76, 0.15);
  text-align: center;
}

.btn-top {
  display: inline-block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 11px;
  font-weight: 300;
  color: rgba(201, 168, 76, 0.6);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  padding: 7px 14px;
  border: 1px solid rgba(201, 168, 76, 0.25);
  border-radius: 100px;
  transition: color 0.2s, border-color 0.2s;
}

.btn-top:hover {
  color: #C9A84C;
  border-color: rgba(201, 168, 76, 0.6);
}

.footer-copy {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 10px;
  font-weight: 300;
  color: rgba(240, 236, 228, 0.3);
  letter-spacing: 0.06em;
}

/* ===========================
   RESPONSIVE — MOBILE ≤480px
   =========================== */
@media (max-width: 480px) {

  .section-inner {
    padding: 0 16px;
  }

  /* Header */
  .btn-line-header {
    font-size: 12px;
    padding: 8px 13px;
    gap: 6px;
  }

  .btn-line-header .line-text {
    font-size: 12px;
  }

  /* Hero */
  .hero-section {
    padding: 64px 16px 24px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-salon-name {
    font-size: 9px;
    margin-bottom: 12px;
    letter-spacing: 0.08em;
  }

  .hero-line1 {
    font-size: 22px;
    line-height: 1.5;
  }

  .hero-line2 {
    font-size: 14px;
    line-height: 1.7;
  }

  /* Lead */
  .lead-section {
    padding: 36px 0;
  }

  .lead-text {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 16px;
  }

  /* Branch */
  .branch-section {
    padding: 36px 0;
  }

  .branch-number {
    font-size: 11px;
  }

  .branch-divider {
    margin: 0 auto 16px;
  }

  .branch-title {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 10px;
  }

  .branch-desc {
    font-size: 14px;
    line-height: 1.8;
  }

  .branch-sub {
    font-size: 12px;
    line-height: 1.6;
    margin-bottom: 16px;
  }

  /* Buttons — 変更不可のためpaddingのみ微調整 */
  .btn-menu {
    font-size: 14px;
    padding: 15px 16px;
    margin-top: 16px;
  }

  .btn-group .btn-menu {
    margin-top: 0;
  }

  .btn-line-section {
    font-size: 14px;
    padding: 15px 20px;
    margin-top: 16px;
  }

  /* Supplement */
  .supplement-section {
    padding: 36px 0;
  }

  .supplement-text {
    font-size: 12px;
    line-height: 1.6;
  }

  /* Salon Info */
  .salon-info-section {
    padding: 36px 0;
  }

  .salon-info-title {
    font-size: 10px;
  }

  .salon-name-text {
    font-size: 15px;
    margin-bottom: 14px;
  }

  .salon-detail-row {
    font-size: 14px;
    line-height: 1.8;
    gap: 10px;
  }

  .detail-label {
    font-size: 14px;
    width: 58px;
  }

  /* Footer */
  .site-footer {
    padding: 32px 0;
  }

  .btn-top {
    font-size: 10px;
  }

  .footer-copy {
    font-size: 9px;
  }
}

/* ===========================
   FADE-IN ANIMATION
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}