/* =============================================
   HANA HAIR SALON — style.css
   Base: white (#FFFFFF) / dark-gray (#1a1a1a)
   Accent: warm-gray (#888) / off-white (#f5f4f2)
   ============================================= */

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

:root {
  --color-bg:       #ffffff;
  --color-dark:     #1a1a1a;
  --color-gray:     #888888;
  --color-light-bg: #f5f4f2;
  --color-border:   #e0dedd;
  --color-accent:   #c8b89a;   /* warm gold-beige */

  --font-en:  'Cormorant Garamond', serif;
  --font-ja:  'Noto Sans JP', sans-serif;

  --max-w:    1080px;
  --header-h: 64px;

  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
  font-family: var(--font-ja);
  font-weight: 300;
  color: var(--color-dark);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; }

.section-label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.section-label.light { color: var(--color-accent); }

.section-title {
  font-family: var(--font-en);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1.35;
  letter-spacing: 0.04em;
  margin-bottom: 60px;
}
.section-title.light { color: #fff; }

/* Placeholder image box */
.placeholder-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray);
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 40px;
  font-family: var(--font-en);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 50px;
  transition:
    background    0.3s var(--ease),
    color         0.3s var(--ease),
    border-color  0.3s var(--ease),
    transform     0.3s var(--ease),
    box-shadow    0.3s var(--ease);
  cursor: pointer;
}
.btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 100, 255, 0.25);
}
.btn:active {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0, 100, 255, 0.2);
}

.btn-primary {
  background: #1a6eff;
  color: #fff;
  border: 1px solid #1a6eff;
}
.btn-primary:hover {
  background: #3d84ff;
  border-color: #3d84ff;
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  box-shadow: 0 12px 28px rgba(255, 255, 255, 0.12);
}
.btn-outline-light .tel-num {
  font-family: var(--font-en);
  font-size: 1.05rem;
  letter-spacing: 0.1em;
}

/* ==============================================
   HEADER
   ============================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s;
}
.site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.06); }

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-dark);
  text-transform: none;
}

.global-nav ul {
  display: flex;
  gap: 36px;
  align-items: center;
}
.global-nav a {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-dark);
  transition: color 0.2s;
}
.global-nav a:hover { color: var(--color-accent); }
.global-nav .nav-cta {
  padding: 8px 20px;
  border: 1px solid #1a6eff;
  color: #1a6eff;
  border-radius: 50px;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.global-nav .nav-cta:hover {
  background: #1a6eff;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(26, 110, 255, 0.25);
}

/* Hamburger */
.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: 1.5px;
  background: var(--color-dark);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

/* ==============================================
   HERO
   ============================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1a1a1a;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.75);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(26,26,26,0.55) 0%,
    rgba(26,26,26,0.3) 60%,
    rgba(26,26,26,0.55) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 0 24px;
}

.hero-sub {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-ja);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 300;
  line-height: 1.6;
  letter-spacing: 0.08em;
  margin-bottom: 48px;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero-scroll-hint::after {
  content: '';
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.35);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ==============================================
   CONCEPT
   ============================================== */
.concept { background: var(--color-bg); }

.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}

.concept-text p {
  font-size: 0.95rem;
  line-height: 2.1;
  color: #444;
  margin-bottom: 1.5em;
}
.concept-text p:last-child { margin-bottom: 0; }

.concept-image-wrap { overflow: hidden; }
.concept-image {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
  display: block;
}

.map-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
  display: block;
}

.concept-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-top: 1px solid var(--color-border);
  padding-top: 60px;
}

.feature-card { text-align: center; }

.feature-icon {
  font-size: 1.1rem;
  color: var(--color-accent);
  margin-bottom: 16px;
  letter-spacing: 0;
}

.feature-card h3 {
  font-family: var(--font-ja);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--color-gray);
  line-height: 1.9;
}

/* ==============================================
   MENU
   ============================================== */
.menu { background: var(--color-light-bg); }

.menu-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px 64px;
  margin-bottom: 32px;
}

.category-title {
  font-family: var(--font-en);
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-dark);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.menu-table {
  width: 100%;
  border-collapse: collapse;
}
.menu-table thead {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
.menu-table tr {
  border-bottom: 1px solid var(--color-border);
}
.menu-table td {
  padding: 14px 4px;
  font-size: 0.9rem;
  color: #444;
}
.menu-table td:last-child {
  text-align: right;
  font-family: var(--font-en);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--color-dark);
  white-space: nowrap;
}

.menu-note {
  font-size: 0.78rem;
  color: var(--color-gray);
  padding-top: 8px;
}

/* ==============================================
   STORE INFO
   ============================================== */
.store-info { background: var(--color-bg); }

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.info-list { display: flex; flex-direction: column; gap: 0; }

.info-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}
.info-row:first-child { border-top: 1px solid var(--color-border); }

.info-row dt {
  font-weight: 500;
  color: var(--color-dark);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  padding-top: 2px;
}
.info-row dd {
  color: #444;
  line-height: 1.9;
}
.info-row dd a {
  border-bottom: 1px solid var(--color-border);
  transition: border-color 0.2s;
}
.info-row dd a:hover { border-color: var(--color-dark); }

.map-placeholder { aspect-ratio: 4 / 3; }

/* ==============================================
   RESERVE
   ============================================== */
.reserve {
  background: var(--color-dark);
  text-align: center;
}

.reserve-inner { max-width: 640px; }

.reserve-lead {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  line-height: 2;
  margin-bottom: 48px;
}

.reserve-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==============================================
   FOOTER
   ============================================== */
.site-footer {
  background: #111;
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: #fff;
}

.footer-copy {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.1em;
}

/* ==============================================
   MODAL
   ============================================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.modal.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 26, 0.6);
  backdrop-filter: blur(6px);
}

.modal-box {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  max-width: 440px;
  width: 100%;
  padding: 56px 48px;
  text-align: center;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.4s var(--ease);
}
.modal.open .modal-box {
  transform: translateY(0) scale(1);
}

.modal-icon {
  font-size: 1.2rem;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.modal-label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.modal-title {
  font-family: var(--font-ja);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.modal-body {
  font-size: 0.85rem;
  color: var(--color-gray);
  line-height: 2;
  margin-bottom: 40px;
}

/* ×ボタン */
.modal-x {
  position: absolute;
  top: 16px; right: 20px;
  background: none;
  border: none;
  font-size: 1rem;
  color: var(--color-gray);
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
}
.modal-x:hover { color: var(--color-dark); }

/* 戻るリンク */
.modal-back {
  background: none;
  border: none;
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--color-gray);
  cursor: pointer;
  margin-bottom: 16px;
  padding: 0;
  transition: color 0.2s;
}
.modal-back:hover { color: var(--color-dark); }

/* 閉じるボタン（共通） */
.modal-close-btn {
  font-family: var(--font-ja);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  padding: 12px 48px;
  border: none;
  width: 100%;
}

/* 電話モーダル */
.modal-tel-num {
  display: block;
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: #1a6eff;
  margin: 8px 0 12px;
  transition: opacity 0.2s;
}
.modal-tel-num:hover { opacity: 0.75; }

.modal-tel-hours {
  font-size: 0.78rem;
  color: var(--color-gray);
  letter-spacing: 0.04em;
}

/* --- カレンダー --- */
.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
#cal-month-label {
  font-family: var(--font-en);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--color-dark);
}
.cal-nav {
  background: none;
  border: 1px solid var(--color-border);
  width: 32px; height: 32px;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--color-dark);
  border-radius: 50%;
  transition: background 0.2s, color 0.2s;
  line-height: 1;
}
.cal-nav:hover { background: var(--color-dark); color: #fff; }

.cal-dow-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  text-align: center;
  margin-bottom: 4px;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  text-align: center;
}
.cal-dow {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--color-gray);
  padding-bottom: 8px;
}
.cal-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.2s;
  color: var(--color-dark);
}
.cal-cell:hover {
  background: #1a6eff;
  color: #fff;
  transform: scale(1.1);
}
.cal-cell.empty { cursor: default; }
.cal-cell.past  { color: var(--color-border); pointer-events: none; }
.cal-cell.today { border: 1px solid var(--color-accent); color: var(--color-accent); font-weight: 500; }
.cal-cell.sun   { color: #c0392b; }
.cal-cell.sun:hover { color: #fff; }
.cal-cell.sat   { color: #1a6eff; }

/* --- 時間選択 --- */
.time-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 8px;
}
.time-slot {
  padding: 12px 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-align: center;
  font-family: var(--font-en);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  color: var(--color-dark);
}
.time-slot:hover {
  background: #1a6eff;
  color: #fff;
  border-color: #1a6eff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(26,110,255,0.2);
}
.time-slot.full {
  color: var(--color-border);
  pointer-events: none;
  text-decoration: line-through;
}

/* ==============================================
   SCROLL ANIMATION
   ============================================== */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.feature-card:nth-child(2) { transition-delay: 0.12s; }
.feature-card:nth-child(3) { transition-delay: 0.24s; }

/* ==============================================
   RESPONSIVE — Tablet (≤ 900px)
   ============================================== */
@media (max-width: 900px) {
  .concept-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .concept-image { aspect-ratio: 16 / 9; }

  .concept-features {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .menu-categories {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .info-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ==============================================
   RESPONSIVE — Mobile (≤ 600px)
   ============================================== */
@media (max-width: 600px) {
  :root { --header-h: 56px; }

  .section { padding: 72px 0; }
  .section-title { margin-bottom: 40px; }

  /* Header / Nav */
  .nav-toggle { display: flex; }

  .global-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(10px);
    padding: 32px 24px 40px;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.4s var(--ease), opacity 0.4s;
    border-bottom: 1px solid var(--color-border);
    pointer-events: none;
  }
  .global-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .global-nav ul {
    flex-direction: column;
    gap: 28px;
    align-items: flex-start;
  }
  .global-nav a { font-size: 1rem; }
  .global-nav .nav-cta {
    padding: 12px 28px;
    align-self: stretch;
    text-align: center;
  }

  /* Nav toggle open state */
  .nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  /* Hero */
  .hero-title { font-size: 2rem; }

  /* Concept */
  .concept-features {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .feature-card { text-align: left; }

  /* Menu */
  .menu-categories { gap: 36px; }

  /* Info */
  .info-row { grid-template-columns: 72px 1fr; }

  /* Reserve */
  .reserve-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 320px; text-align: center; }
}