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

:root {
  --white: #ffffff;
  --off-white: #f5f5f5;
  --light-gray: #e0e0e0;
  --mid-gray: #999999;
  --dark-gray: #2a2a2a;
  --darker-gray: #1a1a1a;
  --black: #0d0d0d;
  --accent: #c9a84c;
  --accent-light: #e2c97e;
  --font-en: 'Cormorant Garamond', serif;
  --font-jp: 'Noto Sans JP', sans-serif;
}

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

body {
  font-family: var(--font-jp);
  font-weight: 300;
  color: var(--off-white);
  background-color: var(--black);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===================================
   Header
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.logo-img {
  height: 32px;
  width: auto;
}

.logo-yaneura {
  font-family: var(--font-en);
  font-size: 0.35rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--mid-gray);
  margin-top: -4px;
  align-self: center;
}

/* Nav */
.nav-list {
  display: flex;
  gap: 32px;
}

.nav-list a {
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid-gray);
  transition: color 0.3s;
}

.nav-list a:hover {
  color: var(--white);
}

/* Hamburger */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 20px;
  position: relative;
  z-index: 1100;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--white);
  position: absolute;
  left: 0;
  transition: all 0.3s;
}

.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);
}

/* ===================================
   Hero
   =================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--black) 0%, var(--darker-gray) 50%, #1c1c1c 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 30% 40%, rgba(201, 168, 76, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 500px 300px at 70% 60%, rgba(201, 168, 76, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-logo {
  max-width: clamp(280px, 50vw, 520px);
  width: 100%;
  height: auto;
  margin-bottom: 0;
}

.hero-yaneura {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--mid-gray);
  margin-top: -20px;
  margin-bottom: 48px;
}

.hero-btn {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 14px 48px;
  transition: all 0.3s;
}

.hero-btn:hover {
  background: var(--accent);
  color: var(--black);
}

/* ===================================
   Section Common
   =================================== */
.section {
  padding: 100px 0;
}

.section-title {
  font-family: var(--font-en);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-align: center;
  color: var(--white);
}

.section-divider {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin: 20px auto 48px;
}

/* ===================================
   Concept
   =================================== */
.concept {
  background-color: var(--black);
}

.concept-body {
  display: flex;
  gap: 48px;
  align-items: center;
}

.concept-text {
  flex: 1;
}

.concept-text p {
  font-size: 0.95rem;
  color: var(--light-gray);
  margin-bottom: 20px;
  line-height: 2;
}

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

.concept-image {
  flex: 1;
}

.concept-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: brightness(0.7) contrast(1.15) saturate(0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: filter 0.4s;
}

.concept-img:hover {
  filter: brightness(0.8) contrast(1.1) saturate(0.75);
}

/* ===================================
   Chips
   =================================== */
.chips {
  background-color: var(--darker-gray);
}

.price-subtitle {
  font-family: var(--font-en);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--white);
  margin-bottom: 20px;
  padding-left: 4px;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}

.price-subtitle + .chips-table-wrapper {
  margin-bottom: 48px;
}

.chips-table-wrapper {
  overflow-x: auto;
}

.chips-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
}

.chips-table th,
.chips-table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.chips-table th {
  font-weight: 500;
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.chips-table td {
  color: var(--light-gray);
}

.chips-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.chip-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: middle;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.chip-white { background: #f0f0f0; }
.chip-red { background: #c0392b; }
.chip-blue { background: #2980b9; }
.chip-green { background: #27ae60; }
.chip-black { background: #1a1a1a; border-color: rgba(255, 255, 255, 0.3); }

.chips-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--mid-gray);
  margin-top: 24px;
}

/* ===================================
   Info
   =================================== */
.info {
  background-color: var(--black);
}

.info-grid {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

.info-details {
  flex: 1;
}

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

.info-row {
  display: flex;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.info-row dt {
  width: 120px;
  flex-shrink: 0;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.info-row dd {
  font-size: 0.9rem;
  color: var(--light-gray);
  line-height: 1.7;
}

.info-row dd a {
  color: var(--light-gray);
  transition: color 0.3s;
}

.info-row dd a:hover {
  color: var(--white);
}

.info-map {
  flex: 1;
}

.info-map-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--darker-gray);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mid-gray);
  font-family: var(--font-en);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

/* ===================================
   Footer
   =================================== */
.footer {
  padding: 48px 24px;
  text-align: center;
  background: var(--darker-gray);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-logo-img {
  max-width: 180px;
  height: auto;
  margin: 0 auto 0;
}

.footer-yaneura {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--mid-gray);
  margin-top: -14px;
  margin-bottom: 16px;
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--mid-gray);
  letter-spacing: 0.05em;
}

/* ===================================
   Responsive (Tablet)
   =================================== */
@media (max-width: 768px) {
  /* Header */
  .menu-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: rgba(13, 13, 13, 0.97);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
  }

  .nav.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 40px;
  }

  .nav-list a {
    font-size: 1.1rem;
    color: var(--white);
  }

  /* Sections */
  .section {
    padding: 72px 0;
  }

  /* Concept */
  .concept-body {
    flex-direction: column;
    gap: 32px;
  }

  .sp-hide {
    display: none;
  }

  /* Info */
  .info-grid {
    flex-direction: column;
    gap: 32px;
  }

  .info-row {
    flex-direction: column;
    gap: 4px;
  }

  .info-row dt {
    width: auto;
    font-size: 0.8rem;
  }
}

/* ===================================
   Responsive (Small Mobile)
   =================================== */
@media (max-width: 480px) {
  .hero-catch {
    font-size: 0.85rem;
    letter-spacing: 0.12em;
  }

  .hero-btn {
    padding: 12px 36px;
  }

  .chips-table th,
  .chips-table td {
    padding: 12px 14px;
    font-size: 0.85rem;
  }
}