/* ============================================
   やきにく - Premium Yakiniku Restaurant
   Style inspired by ushigoro.com
   ============================================ */

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

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

body {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  color: #111;
  background: #fff;
  line-height: 1.8;
  font-weight: 300;
  overflow-x: hidden;
}

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

a:hover {
  opacity: 0.7;
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

/* --- Loading Screen --- */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  text-align: center;
}

.loading-text {
  display: block;
  font-size: 2rem;
  color: #fff;
  letter-spacing: 0.3em;
  margin-bottom: 30px;
  font-weight: 300;
}

.loading-bar {
  width: 120px;
  height: 1px;
  background: rgba(255,255,255,0.2);
  margin: 0 auto;
  overflow: hidden;
}

.loading-bar-inner {
  width: 0%;
  height: 100%;
  background: #fff;
  animation: loadingProgress 1.8s ease-in-out forwards;
}

@keyframes loadingProgress {
  0% { width: 0%; }
  100% { width: 100%; }
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.header.scrolled {
  background: rgba(0, 0, 0, 0.92);
  box-shadow: 0 1px 20px rgba(0,0,0,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 50px;
  height: 90px;
  transition: height 0.4s ease;
}

.header.scrolled .header-inner {
  height: 70px;
}

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

.logo-jp {
  font-size: 1.5rem;
  color: #fff;
  letter-spacing: 0.15em;
  font-weight: 400;
}

.nav-desktop {
  display: block;
}

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

.nav-list a {
  color: #fff;
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  font-weight: 400;
  position: relative;
  padding-bottom: 4px;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: #fff;
  transition: width 0.3s ease;
}

.nav-list a:hover {
  opacity: 1;
}

.nav-list a:hover::after {
  width: 100%;
}

.nav-reserve {
  border: 1px solid rgba(255,255,255,0.6);
  padding: 10px 24px !important;
  transition: background 0.3s ease, color 0.3s ease;
}

.nav-reserve:hover {
  background: #fff;
  color: #000 !important;
}

.nav-reserve::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: #fff;
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.hamburger span:nth-child(3) { bottom: 0; }

.hamburger.active span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* Mobile Nav */
.nav-mobile {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.95);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.nav-mobile.active {
  opacity: 1;
  visibility: visible;
}

.nav-mobile-inner {
  text-align: center;
}

.nav-mobile-list li {
  margin-bottom: 30px;
}

.nav-mobile-list a {
  color: #fff;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  letter-spacing: 0.2em;
}

.nav-mobile-info {
  margin-top: 50px;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
}

.nav-mobile-tel {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: 0.1em;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
  transform: scale(1.05);
  animation: heroZoom 8s ease-in-out infinite alternate;
}

.hero-slide.active {
  opacity: 1;
}

@keyframes heroZoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.3) 0%,
    rgba(0,0,0,0.1) 40%,
    rgba(0,0,0,0.4) 100%
  );
  z-index: 1;
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  z-index: 2;
}

.hero-sub {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem;
  letter-spacing: 0.3em;
  margin-bottom: 20px;
  font-weight: 300;
  opacity: 0;
  animation: fadeInUp 1s 2.2s forwards;
}

.hero-title {
  font-size: 4rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeInUp 1s 2.5s forwards;
}

.hero-desc {
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  line-height: 2;
  font-weight: 300;
  opacity: 0;
  animation: fadeInUp 1s 2.8s forwards;
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  z-index: 2;
  text-align: center;
  opacity: 0;
  animation: fadeInUp 1s 3.2s forwards;
}

.hero-scroll span {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 10px;
}

.hero-scroll-line {
  width: 1px;
  height: 50px;
  background: rgba(255,255,255,0.4);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.hero-scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: #fff;
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  100% { top: 100%; }
}

/* --- Section Common --- */
.section {
  padding: 120px 0;
}

.section-header {
  margin-bottom: 80px;
}

.section-header.center {
  text-align: center;
}

.section-header.light .section-label,
.section-header.light .section-title,
.section-header.light .section-subtitle {
  color: #fff;
}

.section-label {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: #888;
  display: block;
  margin-bottom: 20px;
}

.section-title {
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  line-height: 1.6;
}

.section-subtitle {
  font-size: 0.9rem;
  color: #888;
  margin-top: 20px;
  line-height: 2;
  font-weight: 300;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Concept Section --- */
.concept {
  background: #fff;
}

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

.concept-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.concept-lead {
  font-size: 1.1rem;
  line-height: 2.2;
  letter-spacing: 0.08em;
  margin-bottom: 30px;
  font-weight: 400;
}

.concept-body {
  font-size: 0.9rem;
  line-height: 2;
  color: #555;
  margin-bottom: 20px;
}

/* --- Features Section --- */
.features {
  background: #f9f8f6;
  padding: 120px 0;
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
}

.feature-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 500px;
}

.feature-item.reverse {
  direction: rtl;
}

.feature-item.reverse > * {
  direction: ltr;
}

.feature-image {
  overflow: hidden;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.feature-item:hover .feature-image img {
  transform: scale(1.05);
}

.feature-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 80px;
}

.feature-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  color: #ddd;
  font-weight: 300;
  margin-bottom: 20px;
  line-height: 1;
}

.feature-title {
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.feature-desc {
  font-size: 0.9rem;
  line-height: 2;
  color: #666;
}

/* --- Menu Section --- */
.menu {
  background: #fff;
}

.menu-categories {
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.menu-category {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.menu-category.reverse {
  direction: rtl;
}

.menu-category.reverse > * {
  direction: ltr;
}

.menu-category-image {
  overflow: hidden;
}

.menu-category-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.menu-category:hover .menu-category-image img {
  transform: scale(1.03);
}

.menu-category-title {
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.menu-category-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: #aaa;
  margin-bottom: 30px;
}

.menu-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.menu-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.menu-item-name {
  font-size: 0.95rem;
  white-space: nowrap;
  letter-spacing: 0.05em;
}

.menu-item-line {
  flex: 1;
  border-bottom: 1px dotted #ccc;
  min-width: 20px;
  position: relative;
  top: -4px;
}

.menu-item-price {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem;
  white-space: nowrap;
  letter-spacing: 0.05em;
}

.menu-note {
  text-align: center;
  font-size: 0.8rem;
  color: #999;
  margin-top: 60px;
}

/* --- Interior Section --- */
.interior {
  background: #000;
  color: #fff;
}

.interior .section-label {
  color: rgba(255,255,255,0.5);
}

.interior .section-subtitle {
  color: rgba(255,255,255,0.6);
}

.interior-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 16px;
}

.interior-item {
  position: relative;
  overflow: hidden;
}

.interior-item img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.interior-item.large img {
  height: 400px;
}

.interior-item:hover img {
  transform: scale(1.05);
}

.interior-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  font-weight: 300;
}

/* --- Parallax Divider --- */
.parallax-divider {
  position: relative;
  height: 50vh;
  min-height: 400px;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
}

.parallax-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
}

.parallax-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.parallax-text {
  color: #fff;
  font-size: 1.8rem;
  letter-spacing: 0.2em;
  font-weight: 300;
}

/* --- Info Section --- */
.info {
  background: #f9f8f6;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.info-map {
  min-height: 400px;
  overflow: hidden;
}

.info-map iframe {
  min-height: 400px;
}

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

.info-table tr {
  border-bottom: 1px solid #e0e0e0;
}

.info-table th,
.info-table td {
  padding: 18px 0;
  font-size: 0.9rem;
  vertical-align: top;
  text-align: left;
}

.info-table th {
  width: 100px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: #333;
  white-space: nowrap;
  padding-right: 24px;
}

.info-table td {
  color: #555;
  line-height: 1.8;
}

.info-table a {
  color: #555;
}

.info-table a:hover {
  color: #000;
  opacity: 1;
}

/* --- Reservation Section --- */
.reservation {
  position: relative;
  padding: 140px 0;
  overflow: hidden;
}

.reservation-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.reservation-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.75);
}

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

.reservation-methods {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  max-width: 700px;
  margin: 0 auto;
}

.reservation-method {
  text-align: center;
  color: #fff;
}

.reservation-icon {
  width: 50px;
  height: 50px;
  margin: 0 auto 24px;
}

.reservation-icon svg {
  width: 100%;
  height: 100%;
  color: #fff;
}

.reservation-method h3 {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.reservation-tel {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  letter-spacing: 0.1em;
  color: #fff;
  display: block;
  margin-bottom: 8px;
}

.btn-reserve {
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.6);
  color: #fff;
  padding: 14px 50px;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  transition: background 0.3s ease, color 0.3s ease;
}

.btn-reserve:hover {
  background: #fff;
  color: #000;
  opacity: 1;
}

.reservation-hours {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-top: 12px;
}

/* --- Footer --- */
.footer {
  background: #000;
  color: #fff;
  padding: 60px 0 40px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  font-size: 1.3rem;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 12px;
}

.footer-address {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
}

.footer-social {
  display: flex;
  gap: 20px;
}

.social-link {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.social-link svg {
  width: 20px;
  height: 20px;
  color: rgba(255,255,255,0.6);
  transition: color 0.3s ease;
}

.social-link:hover svg {
  color: #fff;
}

.footer-bottom {
  padding-top: 30px;
  text-align: center;
}

.copyright {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em;
  font-family: 'Cormorant Garamond', serif;
}

/* ===========================================
   Responsive Design
   =========================================== */

@media (max-width: 1024px) {
  .concept-grid {
    gap: 50px;
  }

  .feature-content {
    padding: 40px 50px;
  }

  .feature-item {
    min-height: 400px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }

  .section {
    padding: 80px 0;
  }

  /* Header */
  .nav-desktop {
    display: none;
  }

  .hamburger {
    display: block;
  }

  .header-inner {
    padding: 0 24px;
    height: 70px;
  }

  .header.scrolled .header-inner {
    height: 60px;
  }

  .logo-jp {
    font-size: 1.2rem;
  }

  /* Hero */
  .hero-title {
    font-size: 2.5rem;
    letter-spacing: 0.3em;
  }

  .hero-sub {
    font-size: 0.8rem;
  }

  .hero-desc {
    font-size: 0.85rem;
  }

  /* Section Headers */
  .section-title {
    font-size: 1.6rem;
  }

  .section-header {
    margin-bottom: 50px;
  }

  /* Concept */
  .concept-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .concept-image img {
    height: 300px;
  }

  /* Features */
  .feature-item,
  .feature-item.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    min-height: auto;
  }

  .feature-image img {
    height: 280px;
  }

  .feature-content {
    padding: 40px 24px;
  }

  .feature-number {
    font-size: 2.5rem;
  }

  /* Menu */
  .menu-category,
  .menu-category.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 30px;
  }

  .menu-category-image img {
    height: 250px;
  }

  .menu-categories {
    gap: 60px;
  }

  /* Interior */
  .interior-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .interior-item img,
  .interior-item.large img {
    height: 250px;
  }

  /* Parallax */
  .parallax-divider {
    height: 40vh;
    min-height: 300px;
    background-attachment: scroll;
  }

  .parallax-text {
    font-size: 1.3rem;
  }

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

  .info-map {
    min-height: 300px;
  }

  .info-map iframe {
    min-height: 300px;
  }

  /* Reservation */
  .reservation {
    padding: 100px 0;
  }

  .reservation-methods {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .reservation-tel {
    font-size: 1.6rem;
  }

  /* Footer */
  .footer-top {
    flex-direction: column;
    gap: 24px;
    align-items: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
    letter-spacing: 0.2em;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .feature-content {
    padding: 30px 20px;
  }

  .info-table th {
    display: block;
    padding-bottom: 4px;
    width: auto;
  }

  .info-table td {
    display: block;
    padding-top: 0;
  }
}