*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #0a0a0a;
  --color-bg-light: #141414;
  --color-text: #d4d0c8;
  --color-text-light: #9a9689;
  --color-accent: #b8a47e;
  --color-white: #f0ede6;
  --color-line: rgba(184, 164, 126, 0.3);
  --font-en: 'Cormorant Garamond', serif;
  --font-jp: 'Noto Serif JP', serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-jp);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 2;
  letter-spacing: 0.08em;
  font-weight: 300;
  overflow-x: hidden;
}

/* ===== Loading ===== */
#loading {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
#loading.hidden {
  opacity: 0;
  visibility: hidden;
}
#loading span {
  font-family: var(--font-en);
  font-size: 1.2rem;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ===== Header ===== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.4s ease;
}
header.scrolled {
  background-color: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(10px);
}
.logo {
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.35em;
  color: var(--color-white);
  text-decoration: none;
  text-transform: uppercase;
}
nav {
  display: flex;
  gap: 32px;
  align-items: center;
}
nav a {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}
nav a:hover {
  color: var(--color-accent);
}

/* ===== Hamburger ===== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Mobile Nav Overlay ===== */
.nav-mobile {
  display: none;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('img/hero.jpg') center center / cover no-repeat;
  transform: scale(1.05);
  transition: transform 8s ease-out;
}
.hero.loaded .hero-bg {
  transform: scale(1);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0.4) 0%,
    rgba(10, 10, 10, 0.2) 40%,
    rgba(10, 10, 10, 0.6) 100%
  );
}
.hero-content {
  position: relative;
  text-align: center;
  z-index: 1;
}
.hero-title-jp {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 200;
  color: var(--color-white);
  letter-spacing: 0.3em;
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1.2s ease 0.5s forwards;
}
.hero-title-en {
  font-family: var(--font-en);
  font-size: clamp(0.7rem, 1.2vw, 0.85rem);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1.2s ease 0.8s forwards;
}
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeUp 1.2s ease 1.2s forwards;
}
.hero-scroll span {
  font-family: var(--font-en);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--color-text-light);
  text-transform: uppercase;
}
.hero-scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: var(--color-accent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Sections ===== */
section {
  padding: 120px 40px;
}
.section-inner {
  max-width: 900px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header h2 {
  font-family: var(--font-en);
  font-size: clamp(0.65rem, 1vw, 0.75rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
  font-weight: 400;
}
.section-header .jp-title {
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  font-weight: 200;
  letter-spacing: 0.15em;
  color: var(--color-white);
}
.section-line {
  width: 40px;
  height: 1px;
  background: var(--color-accent);
  margin: 24px auto 0;
}

/* ===== Fade In ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Concept ===== */
#concept {
  background: var(--color-bg);
}
.concept-text {
  text-align: center;
  font-size: 0.95rem;
  line-height: 2.4;
  color: var(--color-text);
}
.concept-text p + p {
  margin-top: 2em;
}
.concept-catchphrase {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-white);
  text-align: center;
  margin-bottom: 48px;
  line-height: 2.2;
}

/* ===== Image Sections ===== */
.full-image {
  width: 100%;
  padding: 0;
  overflow: hidden;
}
.full-image img {
  width: 100%;
  height: 50vh;
  object-fit: cover;
  display: block;
}

/* ===== Chef ===== */
#chef {
  background: var(--color-bg-light);
}
.chef-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.chef-image {
  overflow: hidden;
}
.chef-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  display: block;
}
.chef-info h3 {
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-white);
  margin-bottom: 8px;
}
.chef-info .chef-name-en {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 32px;
  text-transform: uppercase;
}
.chef-info p {
  font-size: 0.85rem;
  line-height: 2.2;
  color: var(--color-text);
}
.chef-info p + p {
  margin-top: 1.5em;
}

/* ===== Menu ===== */
#menu {
  background: var(--color-bg);
}
.menu-content {
  text-align: center;
}
.menu-course {
  margin-bottom: 48px;
}
.menu-course h3 {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-white);
  margin-bottom: 8px;
}
.menu-course .price {
  font-family: var(--font-en);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.menu-course p {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 2;
}
.menu-note {
  font-size: 0.8rem;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-line);
  padding-top: 32px;
  margin-top: 16px;
  line-height: 2.2;
}

/* ===== Gallery ===== */
#gallery {
  background: var(--color-bg-light);
  padding: 120px 0;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}
.gallery-grid img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.gallery-grid img:hover {
  transform: scale(1.03);
}

/* ===== Info ===== */
#info {
  background: var(--color-bg);
}
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.info-block h3 {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
  font-weight: 400;
}
.info-block dl {
  font-size: 0.85rem;
}
.info-block dt {
  color: var(--color-text-light);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
  margin-top: 20px;
}
.info-block dt:first-child {
  margin-top: 0;
}
.info-block dd {
  color: var(--color-text);
  line-height: 1.8;
}
.info-map {
  width: 100%;
  height: 100%;
  min-height: 350px;
  border: none;
  filter: none;
}

/* ===== Reservation ===== */
#reservation {
  background: var(--color-bg-light);
  text-align: center;
}
.reservation-text {
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: 40px;
  line-height: 2.2;
}
.btn-reserve {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 16px 56px;
  text-decoration: none;
  transition: background-color 0.4s ease, color 0.4s ease;
}
.btn-reserve:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

/* ===== Footer ===== */
footer {
  background: var(--color-bg);
  padding: 60px 40px 40px;
  text-align: center;
  border-top: 1px solid var(--color-line);
}
.footer-logo {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--color-white);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}
.footer-links a {
  font-size: 0.75rem;
  color: var(--color-text-light);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.3s ease;
}
.footer-links a:hover {
  color: var(--color-accent);
}
.footer-company {
  font-size: 0.7rem;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.footer-copy {
  font-family: var(--font-en);
  font-size: 0.65rem;
  color: var(--color-text-light);
  letter-spacing: 0.1em;
}

/* ===== Fixed Reserve Button ===== */
.fixed-reserve {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #fff;
  background: var(--color-accent);
  padding: 16px 28px;
  border-radius: 4px;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  transition: background-color 0.3s ease, box-shadow 0.3s ease, opacity 0.4s ease, transform 0.4s ease;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}
.fixed-reserve.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.fixed-reserve:hover {
  background: #a08f6a;
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.6);
}
.fixed-reserve svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  header {
    padding: 16px 20px;
    z-index: 300;
  }
  .nav-desktop {
    display: none;
  }
  .nav-mobile {
    display: flex;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(10, 10, 10, 0.97);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 28px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
  }
  .nav-mobile.open {
    opacity: 1;
    visibility: visible;
  }
  .nav-mobile a {
    font-family: var(--font-en);
    font-size: 0.8rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-text-light);
    text-decoration: none;
    transition: color 0.3s ease;
  }
  .nav-mobile a:hover {
    color: var(--color-accent);
  }
  .hamburger {
    display: flex;
  }
  section {
    padding: 80px 24px;
  }
  .chef-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .chef-image img {
    height: 350px;
  }
  .info-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .gallery-grid img {
    height: 200px;
  }
  .full-image img {
    height: 35vh;
  }
}