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

:root {
  --cream: #f5f0e8;
  --cream-dark: #ede5d8;
  --brown: #5c3d2e;
  --brown-light: #8b6355;
  --brown-dark: #3a2218;
  --red: #8b2332;
  --red-light: #a83040;
  --green: #4a6741;
  --white: #ffffff;
  --text: #2c1810;
  --text-light: #6b4c3b;
  --border: #d4c4b0;
  --shadow: rgba(60, 30, 10, 0.12);
  --font-serif: 'Noto Serif JP', 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  --font-sans: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --transition: 0.3s ease;
  --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: opacity var(--transition); }
a:hover { opacity: 0.75; }

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Typography ===== */
.section-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 400;
  color: var(--brown-dark);
  margin-bottom: 20px;
  line-height: 1.3;
}

.section-desc {
  color: var(--text-light);
  font-size: 15px;
  max-width: 560px;
  margin-bottom: 48px;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block;
  padding: 14px 36px;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.1em;
  border-radius: 50px;
  border: 2px solid var(--red);
  transition: all var(--transition);
  cursor: pointer;
}
.btn-primary:hover {
  background: transparent;
  color: var(--red);
  opacity: 1;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1.5px solid var(--brown);
  color: var(--brown);
  font-size: 14px;
  letter-spacing: 0.05em;
  border-radius: 50px;
  transition: all var(--transition);
}
.btn-secondary:hover {
  background: var(--brown);
  color: var(--white);
  opacity: 1;
}

/* ===== Header / Nav ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.header.scrolled {
  background: rgba(245, 240, 232, 0.97);
  box-shadow: 0 2px 20px var(--shadow);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.logo-en {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--brown-dark);
  letter-spacing: 0.05em;
}
.logo-ja {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--brown-light);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--brown-dark);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1.5px;
  background: var(--red);
  transition: width var(--transition);
}
.nav-links a:hover::after { width: 100%; opacity: 1; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--brown-dark);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  background: rgba(245, 240, 232, 0.98);
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
}
.mobile-menu.open { max-height: 300px; padding: 16px 24px 24px; }
.mobile-menu ul { list-style: none; }
.mobile-menu li { border-bottom: 1px solid var(--border); }
.mobile-link {
  display: block;
  padding: 14px 0;
  font-size: 15px;
  color: var(--brown-dark);
  letter-spacing: 0.1em;
}

/* ===== Hero ===== */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--cream);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 65% 50%, #e2d5c3 0%, transparent 55%),
    radial-gradient(ellipse at 20% 80%, #ede0ce 0%, transparent 45%);
}

/* 青海波（せいがいは）パターン */
.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='28'%3E%3Cpath d='M56 26 Q42 14 28 26 Q14 14 0 26' fill='none' stroke='%235c3d2e' stroke-width='1.5'/%3E%3Cpath d='M56 14 Q42 2 28 14 Q14 2 0 14' fill='none' stroke='%235c3d2e' stroke-width='1.5'/%3E%3C/svg%3E");
  background-size: 56px 28px;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 120px 48px 80px 10%;
}

.hero-sub {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--red);
  font-weight: 500;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.hero-sub::before {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: var(--red);
}

.hero-title {
  display: flex;
  flex-direction: column;
  margin-bottom: 28px;
  line-height: 1;
}
.hero-title-en {
  font-family: var(--font-serif);
  font-size: clamp(64px, 8vw, 108px);
  font-weight: 300;
  color: var(--brown-dark);
  letter-spacing: -0.02em;
}
.hero-title-ja {
  font-family: var(--font-serif);
  font-size: clamp(16px, 2vw, 24px);
  font-weight: 300;
  color: var(--brown-light);
  letter-spacing: 0.5em;
  margin-top: 8px;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-light);
  line-height: 2.2;
  margin-bottom: 40px;
  border-left: 2px solid var(--border);
  padding-left: 16px;
}

/* おにぎりイラスト */
.hero-illust {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 80px 10% 80px 0;
}

.onigiri-main {
  width: min(340px, 45vw);
  filter: drop-shadow(0 20px 40px rgba(44,24,16,0.18));
  animation: floatMain 5s ease-in-out infinite;
}
@keyframes floatMain {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.onigiri-mini {
  position: absolute;
  filter: drop-shadow(0 6px 12px rgba(44,24,16,0.12));
}
.onigiri-mini-1 {
  width: 80px;
  top: 18%;
  right: 14%;
  animation: floatMini1 4s 0.8s ease-in-out infinite;
}
.onigiri-mini-2 {
  width: 56px;
  bottom: 22%;
  right: 8%;
  animation: floatMini2 3.5s 1.6s ease-in-out infinite;
}
@keyframes floatMini1 {
  0%, 100% { transform: translateY(0) rotate(-6deg); }
  50% { transform: translateY(-10px) rotate(-6deg); }
}
@keyframes floatMini2 {
  0%, 100% { transform: translateY(0) rotate(8deg); }
  50% { transform: translateY(-8px) rotate(8deg); }
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--brown-light);
  font-size: 10px;
  letter-spacing: 0.2em;
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--brown-light), transparent);
  animation: scrollAnim 2s ease-in-out infinite;
}
@keyframes scrollAnim {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.4; }
}

/* ===== About ===== */
.about {
  padding: 120px 0;
  background: var(--white);
}

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

.about-img-wrap {
  position: relative;
  aspect-ratio: 4/5;
  background: var(--cream);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-img-placeholder {
  width: 60%;
  opacity: 0.6;
}
.about-img-deco {
  position: absolute;
  inset: -12px;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  pointer-events: none;
}

.about-text p {
  color: var(--text-light);
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 2;
}
.about-text .btn-secondary { margin-top: 12px; }

/* ===== Features ===== */
.features {
  padding: 80px 0;
  background: var(--brown-dark);
  position: relative;
  overflow: hidden;
}
.features::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='28'%3E%3Cpath d='M56 26 Q42 14 28 26 Q14 14 0 26' fill='none' stroke='%23f5f0e8' stroke-width='1.5'/%3E%3Cpath d='M56 14 Q42 2 28 14 Q14 2 0 14' fill='none' stroke='%23f5f0e8' stroke-width='1.5'/%3E%3C/svg%3E");
  background-size: 56px 28px;
}
.features .features-grid { position: relative; z-index: 1; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: 0 2px 20px var(--shadow);
  transition: transform var(--transition);
}
.feature-item:hover { transform: translateY(-4px); }

.feature-icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.feature-item h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--brown-dark);
  margin-bottom: 12px;
}
.feature-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.9;
}

/* featuresセクション内のカードは白ベース */
.features .feature-item {
  background: rgba(245, 240, 232, 0.95);
}

/* ===== Menu ===== */
.menu {
  padding: 120px 0;
  background: var(--white);
}

.menu-category { margin-bottom: 64px; }

.menu-cat-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--brown-dark);
  padding-bottom: 12px;
  border-bottom: 1.5px solid var(--border);
  margin-bottom: 32px;
  position: relative;
}
.menu-cat-title::after {
  content: '';
  position: absolute;
  bottom: -1.5px; left: 0;
  width: 60px; height: 1.5px;
  background: var(--red);
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.menu-grid-side {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.menu-card {
  background: var(--cream);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.menu-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px var(--shadow);
}

.menu-card-body {
  padding: 16px 18px 18px;
}
.menu-card-body h4 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--brown-dark);
  margin-bottom: 6px;
}
.menu-card-body p {
  font-size: 12.5px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 10px;
}

.price {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--red);
}

/* サイドメニュー横並びカード */
.menu-card.side-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--cream);
}
.menu-card.side-card .menu-card-body {
  padding: 0;
  flex: 1;
}
.menu-card.side-card .menu-card-body h4 {
  font-size: 15px;
  margin-bottom: 4px;
}
.menu-card.side-card .menu-card-body p {
  margin-bottom: 0;
}
.side-price {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--red);
  white-space: nowrap;
  margin-left: 16px;
}

.menu-image-wrap {
  text-align: center;
  margin-top: 8px;
}

.menu-image {
  max-width: 720px;
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 8px 40px var(--shadow);
  border: 1px solid var(--border);
}

.menu-card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.menu-card-header h4 {
  margin-bottom: 0;
}

.menu-card-special {
  border: 1.5px dashed var(--red);
  background: rgba(139, 35, 50, 0.03);
}

.menu-note {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 8px;
}

.menu-badge {
  display: inline-block;
  font-size: 10px;
  padding: 2px 8px;
  background: var(--red);
  color: white;
  border-radius: 50px;
  margin-left: 6px;
  vertical-align: middle;
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* ===== Instagram ===== */
.instagram {
  padding: 100px 0;
  background: var(--cream-dark);
  text-align: center;
}
.instagram .section-desc { margin: 0 auto 36px; }

.ig-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: white;
  border-radius: 50px;
  font-size: 15px;
  letter-spacing: 0.05em;
  transition: opacity var(--transition), transform var(--transition);
}
.ig-link:hover { opacity: 0.88; transform: scale(1.02); }

/* ===== Access ===== */
.access {
  padding: 120px 0;
  background: var(--white);
}

.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.access-item {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
}
.access-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.access-item h4 {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--red);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.access-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.9;
}

.access-map {
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 24px var(--shadow);
  border: 1px solid var(--border);
}

/* ===== Contact ===== */
.contact {
  padding: 120px 0;
  background: var(--cream-dark);
}

.contact-form {
  max-width: 680px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--brown-dark);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.required { color: var(--red); }

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--text);
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--brown);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #bbb;
}

/* ===== Footer ===== */
.footer {
  background: var(--brown-dark);
  color: var(--cream);
  padding: 64px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 48px;
}

.footer-brand .logo-en {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 300;
  color: var(--cream);
}
.footer-brand .logo-ja {
  font-family: var(--font-serif);
  font-size: 14px;
  color: rgba(245, 240, 232, 0.6);
  margin-left: 8px;
}
.footer-brand p {
  margin-top: 8px;
  font-size: 12px;
  color: rgba(245, 240, 232, 0.5);
  letter-spacing: 0.1em;
}

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 13px;
  color: rgba(245, 240, 232, 0.7);
  letter-spacing: 0.08em;
}
.footer-links a:hover { color: var(--cream); opacity: 1; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
}
.footer-bottom p {
  font-size: 12px;
  color: rgba(245, 240, 232, 0.4);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .about-grid, .access-grid { grid-template-columns: 1fr; gap: 40px; }
  .features-grid { grid-template-columns: 1fr; gap: 20px; }
  .about-img-wrap { max-width: 400px; margin: 0 auto; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 32px; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }

  .hero {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
  }
  .hero-content {
    padding: 100px 24px 32px;
    order: 2;
  }
  .hero-illust {
    order: 1;
    padding: 100px 0 0;
    height: auto;
  }
  .onigiri-main { width: 160px; }
  .onigiri-mini-1 { width: 56px; top: 10%; right: 12%; }
  .onigiri-mini-2 { width: 40px; bottom: 5%; right: 6%; }
  .hero-title-en { font-size: 64px; }

  .menu-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .menu-grid-side { grid-template-columns: 1fr; }

  .footer-links { gap: 16px; }
  .nav { padding: 16px 20px; }

  .about { padding: 72px 0; }
  .features { padding: 56px 0; }
  .menu { padding: 72px 0; }
  .instagram { padding: 72px 0; }
  .access { padding: 72px 0; }
  .contact { padding: 72px 0; }

  .access-map { aspect-ratio: 1/1; }

  .section-title { font-size: 26px; }

  .contact-form { width: 100%; }

  .ig-link { padding: 14px 28px; font-size: 14px; }
}

@media (max-width: 480px) {
  .menu-grid { grid-template-columns: 1fr; }
  .hero-title-en { font-size: 52px; }
  .hero-desc { font-size: 14px; }
  .btn-primary { padding: 13px 28px; font-size: 14px; }
  .feature-item { padding: 28px 20px; }
  .menu-card-body { padding: 14px 14px 16px; }
  .footer-inner { gap: 24px; }
  .footer-links { flex-direction: column; gap: 12px; }
}