@charset "UTF-8";

/* ==========================================================================
   CSS Variables & Design Tokens (御圓屋 トーン＆マナー)
========================================================================== */
:root {
  /* Color Palette */
  --bg-primary: #fdfbf7; /* 落ち着いたアイボリー・ベージュ */
  --bg-light: #f4f1eb; /* 温もりを感じる薄いグレー・ベージュ系 */
  --bg-warm: #e8e2d8; /* 木目を少し意識したウォームグレー */
  --bg-dark: #2a2624; /* フッターなどのチャコール */
  --text-color: #332f2c; /* 本文色（濃いチャコールグレー） */
  --color-accent: #b03a2e; /* 情熱の赤茶・エンジ色 */
  --color-accent-hover: #8f2b20;

  /* Typography */
  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;

  /* Spacing */
  --space-tight: 1rem;
  --space-normal: 2rem;
  --space-loose: 4rem;
  --space-xl: 6rem;

  /* Header Height */
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--text-color);
  background-color: var(--bg-primary);
  line-height: 1.8;
  letter-spacing: 0.05em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.4;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, opacity 0.3s ease;
}

ul {
  list-style: none;
}

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

/* Utilities */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 5%;
}
.text-center { text-align: center; }
.mb-normal { margin-bottom: var(--space-normal); }
.mb-loose { margin-bottom: var(--space-loose); }
.mt-loose { margin-top: var(--space-loose); }
.bg-primary { background-color: var(--bg-primary); }
.bg-light { background-color: var(--bg-light); }
.bg-warm { background-color: var(--bg-warm); }
.bg-dark { background-color: var(--bg-dark); }
.text-white { color: #fff; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 4px;
  font-weight: 500;
  font-family: var(--font-sans);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}
.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
  border-color: var(--color-accent-hover);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #fff;
  border: none;
  box-shadow: 0 4px 10px rgba(176, 58, 46, 0.3);
}
.btn-accent:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(176, 58, 46, 0.4);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-color);
  border: 1px solid var(--text-color);
}
.btn-outline:hover {
  background-color: var(--text-color);
  color: #fff;
}

.btn-large {
  padding: 1.2rem 3rem;
  font-size: 1.1rem;
}

/* ==========================================================================
   Header
========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(253, 251, 247, 0.95);
  backdrop-filter: blur(5px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.header-logo {
  font-size: 1.5rem;
  letter-spacing: 0.1em;
}

.header-nav ul {
  display: flex;
  gap: 2rem;
}

.header-nav a {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  position: relative;
}
.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}
.header-nav a:hover::after {
  width: 100%;
}

/* Hamburger */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: var(--text-color);
  transition: all 0.3s ease;
}
.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.menu-toggle span:nth-child(3) { bottom: 0; }

.menu-toggle.active span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* SP Navigation */
.sp-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  z-index: 999;
}
.sp-nav-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.sp-nav-overlay ul {
  text-align: center;
}
.sp-nav-overlay li {
  margin-bottom: 2rem;
}
.sp-nav-overlay a {
  font-family: var(--font-serif);
  font-size: 1.5rem;
}
.sp-nav-overlay a.btn {
  font-family: var(--font-sans);
  font-size: 1rem;
}

/* ==========================================================================
   Hero Section
========================================================================== */
.hero {
  height: 100vh;
  min-height: 600px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-color: var(--bg-dark);
  background-image: url('../img/line_oa_chat_260309_105003_group_3.jpg');
  background-size: cover;
  background-position: center;
  z-index: -2;
}
.hero-bg::after {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.5); /* Dark Overlay */
  z-index: -1;
}

.hero-content {
  text-align: center;
  color: #fff;
  z-index: 1;
}

.hero-copy {
  font-size: 3.5rem;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero-sub {
  font-size: 1.2rem;
  letter-spacing: 0.15em;
  font-family: var(--font-sans);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.scroll-indicator::after {
  content: '';
  width: 1px;
  height: 40px;
  background-color: #fff;
  margin-top: 10px;
  animation: scrollAnim 2s infinite ease-in-out;
}
@keyframes scrollAnim {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ==========================================================================
   Common Sections
========================================================================== */
.section {
  padding: var(--space-xl) 0;
}

.section-title {
  font-size: 2.2rem;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
  color: var(--color-accent);
}

.section-desc {
  font-size: 1.05rem;
}

/* ==========================================================================
   Concept Section
========================================================================== */
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.concept-subtitle {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
}

.img-placeholder {
  width: 100%;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(0,0,0,0.4);
  background-color: var(--bg-warm);
}

/* ==========================================================================
   Menu Section
========================================================================== */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.menu-card {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.03);
  transition: transform 0.3s ease;
}
.menu-card:hover {
  transform: translateY(-5px);
}

.menu-img {
  height: 220px;
}

.menu-body {
  padding: 1.5rem;
  text-align: center;
}

.menu-name {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent);
}

/* ==========================================================================
   Commitment Section (Slideshow)
========================================================================== */
.commitment-slider {
  padding: 1rem 0 4rem;
}

.commitment-card {
  background: #fff;
  padding: 3rem 2rem;
  border-radius: 8px;
  text-align: center;
  height: auto;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  margin: 10px; /* Space for box-shadow */
}

.commitment-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.commitment-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.commitment-icon img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.commitment-card-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--color-accent);
  position: relative;
  padding-bottom: 0.8rem;
}

.commitment-card-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background-color: var(--color-accent);
}

.commitment-card-text {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-color);
  text-align: left;
}

/* Swiper Pagination Customization */
.commitment-slider .swiper-pagination-bullet {
  background: var(--color-accent);
  opacity: 0.3;
}

.commitment-slider .swiper-pagination-bullet-active {
  opacity: 1;
}

/* ==========================================================================
   Gallery Section
========================================================================== */
.gallery-wrapper {
  width: 100%;
  overflow: hidden;
}

/* Basic implementation for grid/carousel placeholder */
.gallery-track {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  scroll-snap-type: x mandatory;
}
.gallery-item {
  flex: 0 0 calc(33.333% - 1rem);
  height: 250px;
  scroll-snap-align: start;
}

/* ==========================================================================
   Information Section
========================================================================== */
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 1.2rem 0;
  border-bottom: 1px solid rgba(0,0,0,0.1);
  text-align: left;
  vertical-align: top;
}

.info-table th {
  font-family: var(--font-serif);
  width: 30%;
  font-weight: 500;
  color: var(--color-accent);
}

.map-wrap {
  width: 100%;
  height: 100%;
  min-height: 350px;
  background: #eee;
}

/* ==========================================================================
   Footer
========================================================================== */
.footer {
  padding: var(--space-loose) 0 2rem;
}
.footer-logo {
  font-size: 2rem;
  color: #fff;
}
.sns-icon {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 4px;
}
.sns-icon:hover {
  background-color: #fff;
  color: var(--bg-dark);
}
.copyright {
  font-size: 0.8rem;
  opacity: 0.6;
}

/* ==========================================================================
   Animations
========================================================================== */
.reveal {
  opacity: 0;
  transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal.fade-up {
  transform: translateY(30px);
}
.reveal.fade-left {
  transform: translateX(30px);
}
.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}
.d-delay-1 { transition-delay: 0.1s; }
.d-delay-2 { transition-delay: 0.3s; }
.d-delay-3 { transition-delay: 0.5s; }

/* ==========================================================================
   Responsive (SP)
========================================================================== */
.pc-only { display: block; }
.sp-only { display: none; }

@media screen and (max-width: 768px) {
  .pc-only { display: none !important; }
  .sp-only { display: block; }
  
  :root {
    --space-xl: 4rem;
    --space-loose: 3rem;
  }
  
  .hero-copy {
    font-size: 2rem;
  }
  
  .access-grid,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .menu-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-item {
    flex: 0 0 calc(80% - 1rem); /* Larger scroll items on SP */
  }
  
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
  }
}