/* ============================================================
   NIROKU - Okonomiyaki & Teppanyaki Restaurant
   Dark + Red Bold Theme
   ============================================================ */

:root {
  --color-bg: #0a0a0a;
  --color-bg-alt: #111111;
  --color-red: #c41e1e;
  --color-red-bright: #e62e2e;
  --color-red-dark: #8b1515;
  --color-white: #ffffff;
  --color-gray-light: #cccccc;
  --color-gray: #888888;
  --color-gray-dark: #333333;
  --color-gold: #d4a843;
  --font-sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --header-h: 60px;
  --container-max: 960px;
  --transition: 0.3s ease;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-white); text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================================
   HEADER
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(10, 10, 10, 0.95);
  border-bottom: 2px solid var(--color-red);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background var(--transition);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.hex-logo {
  width: 40px;
  height: 40px;
  background: var(--color-red);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hex-text {
  font-size: 14px;
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: -1px;
}
.logo-name {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 3px;
  color: var(--color-white);
}

.header-nav {
  display: flex;
  gap: 16px;
}
.header-nav a {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-gray-light);
  transition: color var(--transition);
}
.header-nav a:hover { color: var(--color-red-bright); }

.lang-switcher {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}
.lang-btn {
  font-size: 18px;
  padding: 2px;
  opacity: 0.5;
  transition: opacity var(--transition), transform var(--transition);
  line-height: 1;
}
.lang-btn:hover { opacity: 0.8; transform: scale(1.15); }
.lang-btn.active { opacity: 1; transform: scale(1.15); }

/* ============================================================
   HERO
   ============================================================ */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(10,10,10,0.6) 0%, rgba(10,10,10,0.3) 40%, rgba(10,10,10,0.7) 80%, rgba(10,10,10,1) 100%),
    radial-gradient(ellipse at center, transparent 0%, rgba(10,10,10,0.5) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
}

.hero-tagline {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 8px;
  color: var(--color-red);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero-heading {
  font-size: clamp(32px, 8vw, 64px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.hero-sub {
  font-size: 16px;
  color: var(--color-gray-light);
  letter-spacing: 4px;
  margin-bottom: 40px;
}

.btn-cta {
  display: inline-block;
  background: var(--color-red);
  color: var(--color-white);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 16px 48px;
  border: 2px solid var(--color-red);
  transition: background var(--transition), transform var(--transition);
}
.btn-cta:hover {
  background: var(--color-red-bright);
  transform: translateY(-2px);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-section {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

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

.about-images {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 8px;
}

.about-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

.about-img-main {
  aspect-ratio: 4/3;
}

.about-img-sub {
  aspect-ratio: 3/4;
}

.section-title-left {
  text-align: left;
}

.about-desc {
  font-size: 15px;
  color: var(--color-gray-light);
  line-height: 1.9;
  margin-top: 16px;
}

.about-highlights {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.highlight {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 20px;
  background: rgba(196, 30, 30, 0.1);
  border: 1px solid var(--color-red-dark);
  border-radius: 4px;
  flex: 1;
  min-width: 100px;
}

.highlight-num {
  font-size: 20px;
  font-weight: 900;
  color: var(--color-red-bright);
}

.highlight-label {
  font-size: 12px;
  color: var(--color-gray);
  margin-top: 4px;
}

/* ============================================================
   PHOTO STRIP
   ============================================================ */
.photo-strip {
  overflow: hidden;
  background: var(--color-bg);
  padding: 4px 0;
}

.photo-strip-inner {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.photo-strip-inner::-webkit-scrollbar {
  display: none;
}

.photo-strip-inner img {
  flex: 0 0 auto;
  width: 200px;
  height: 200px;
  object-fit: cover;
  scroll-snap-align: start;
  transition: transform 0.3s ease;
}

.photo-strip-inner img:hover {
  transform: scale(1.05);
  z-index: 1;
}

/* ============================================================
   SECTION TITLES
   ============================================================ */
.section-title {
  font-size: clamp(28px, 6vw, 48px);
  font-weight: 900;
  letter-spacing: 6px;
  text-align: center;
  color: var(--color-white);
  margin-bottom: 8px;
}
.section-subtitle {
  text-align: center;
  color: var(--color-gray);
  font-size: 14px;
  letter-spacing: 4px;
  margin-bottom: 12px;
}

.tax-note {
  text-align: center;
  color: var(--color-gray);
  font-size: 11px;
  letter-spacing: 1px;
  margin-bottom: 48px;
}

/* ============================================================
   MENU
   ============================================================ */
.menu-section {
  padding: 80px 0;
  background: var(--color-bg);
}

.menu-category {
  margin-bottom: 8px;
  border: 1px solid var(--color-gray-dark);
  border-left: 3px solid var(--color-red);
}

.category-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--color-bg-alt);
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  transition: background var(--transition);
}
.category-header:hover { background: #1a1a1a; }

.category-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.cat-ja { font-size: 16px; font-weight: 900; }
.cat-en {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-gray);
  letter-spacing: 1px;
}

.accordion-icon {
  width: 16px;
  height: 16px;
  position: relative;
  flex-shrink: 0;
}
.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: var(--color-gray-light);
  transition: transform var(--transition);
}
.accordion-icon::before {
  width: 16px; height: 2px;
  top: 7px; left: 0;
}
.accordion-icon::after {
  width: 2px; height: 16px;
  top: 0; left: 7px;
}
.category-header.active .accordion-icon::after {
  transform: rotate(90deg);
}

.category-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.category-body.open {
  max-height: 5000px;
}

.menu-item {
  padding: 12px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.menu-item:first-child { border-top: 1px solid var(--color-gray-dark); }

/* Menu items with photos */
.menu-item.has-photo {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.menu-item-photo {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
  border: 1px solid var(--color-gray-dark);
}

.menu-item-info {
  flex: 1;
  min-width: 0;
}

.item-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.item-name {
  font-weight: 700;
  font-size: 14px;
}
.item-name-en {
  font-weight: 400;
  font-size: 12px;
  color: var(--color-gray);
  margin-left: 4px;
}
.item-price {
  font-weight: 700;
  font-size: 14px;
  color: var(--color-red-bright);
  white-space: nowrap;
  flex-shrink: 0;
}

.item-desc {
  font-size: 12px;
  color: var(--color-gray);
  margin-top: 4px;
  line-height: 1.5;
}

.popular-badge {
  display: inline-block;
  background: var(--color-red);
  color: var(--color-white);
  font-size: 10px;
  font-weight: 900;
  padding: 2px 8px;
  letter-spacing: 1px;
  margin-top: 4px;
}

.menu-item.premium .item-name { color: var(--color-gold); }
.menu-item.premium .item-price { color: var(--color-gold); }

.item-toppings {
  margin-top: 8px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.03);
  border-left: 2px solid var(--color-gray-dark);
}
.toppings-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-gray);
  margin-bottom: 4px;
}
.toppings-list {
  font-size: 11px;
  color: var(--color-gray);
  line-height: 1.6;
}

.drink-sub {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-red);
  padding: 12px 20px 4px;
  letter-spacing: 1px;
}
.drink-list {
  font-size: 11px;
  line-height: 1.8;
}

.nomihoudai-sub {
  background: rgba(196, 30, 30, 0.1);
  padding: 12px 20px;
  margin-top: 8px;
}

.nomihoudai-item {
  background: rgba(196, 30, 30, 0.05);
}

.nomihoudai-item .item-price {
  font-size: 18px;
  color: var(--color-red-bright);
}

/* ============================================================
   ATMOSPHERE
   ============================================================ */
.atmosphere-section {
  padding: 40px 0;
  background: var(--color-bg-alt);
}

.atmosphere-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.atm-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 4px;
  transition: transform 0.3s ease;
}

.atm-img:hover {
  transform: scale(1.03);
}

/* ============================================================
   ACCESS
   ============================================================ */
.access-section {
  padding: 80px 0;
  background: var(--color-bg);
}

.access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

.access-map iframe {
  width: 100%;
  border-radius: 4px;
}

.info-list dt {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-red);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 16px;
}
.info-list dt:first-child { margin-top: 0; }
.info-list dd {
  font-size: 14px;
  color: var(--color-gray-light);
  margin-top: 4px;
}
.phone-link {
  color: var(--color-white);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 2px;
}

/* ============================================================
   RESERVE
   ============================================================ */
.reserve-section {
  padding: 80px 0;
  background: var(--color-bg-alt);
  text-align: center;
}

.reserve-text {
  color: var(--color-gray-light);
  font-size: 14px;
  margin-bottom: 32px;
  letter-spacing: 2px;
}

.reserve-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.btn-reserve {
  font-size: 16px;
  padding: 20px 64px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(196, 30, 30, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(196, 30, 30, 0); }
}

.btn-phone {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--color-gray-light);
  transition: color var(--transition);
}
.btn-phone:hover { color: var(--color-white); }
.phone-icon { font-size: 20px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer-section {
  padding: 48px 0 24px;
  background: #050505;
  border-top: 2px solid var(--color-red);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 24px;
  margin-bottom: 24px;
}
.footer-links a {
  font-size: 13px;
  color: var(--color-gray);
  transition: color var(--transition);
  letter-spacing: 1px;
}
.footer-links a:hover { color: var(--color-red-bright); }

.footer-payment {
  text-align: center;
  margin-bottom: 24px;
}
.footer-payment p:first-child {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-gray);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.payment-icons {
  font-size: 11px;
  color: var(--color-gray);
  line-height: 1.8;
}

.footer-info {
  text-align: center;
  margin-bottom: 24px;
}
.smoking {
  font-size: 12px;
  color: var(--color-gray);
  margin-bottom: 8px;
}
.footer-phone a {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-gray-light);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--color-gray-dark);
}
.footer-bottom p {
  font-size: 11px;
  color: var(--color-gray);
}

/* ============================================================
   RESPONSIVE — Tablet+
   ============================================================ */
@media (min-width: 640px) {
  .header-nav { gap: 24px; }
  .header-nav a { font-size: 13px; }
  .lang-btn { font-size: 20px; gap: 6px; }
  .access-grid { grid-template-columns: 1fr 1fr; }
  .photo-strip-inner img {
    width: 240px;
    height: 240px;
  }
  .atmosphere-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .menu-item-photo {
    width: 100px;
    height: 100px;
  }
}

@media (min-width: 768px) {
  :root { --header-h: 70px; }
  .hex-logo { width: 46px; height: 46px; }
  .hex-text { font-size: 16px; }
  .logo-name { font-size: 22px; letter-spacing: 4px; }
  .category-header { padding: 20px 24px; }
  .cat-ja { font-size: 18px; }
  .cat-en { font-size: 13px; }
  .menu-item { padding: 14px 24px; }
  .item-name { font-size: 15px; }
  .item-price { font-size: 15px; }
  .reserve-buttons { flex-direction: row; justify-content: center; }
  .about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .hero-heading { letter-spacing: 4px; }
  .photo-strip-inner img {
    width: 280px;
    height: 280px;
  }
}