/* ===========================
   リセット・ベース
=========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #faf8f4;
  --color-surface: #f3efe8;
  --color-primary: #3d2b1f;
  --color-accent: #8b5e3c;
  --color-accent-light: #c49a6c;
  --color-text: #2d2117;
  --color-text-muted: #7a6a5a;
  --color-line: #06c755;
  --color-white: #ffffff;
  --font-serif: 'Noto Serif JP', 'Yu Mincho', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --max-width: 1080px;
  --radius: 4px;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ===========================
   共通
=========================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 48px;
  letter-spacing: 0.1em;
}

/* ===========================
   ボタン
=========================== */
.btn-primary {
  display: inline-block;
  padding: 14px 40px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.15em;
  border-radius: var(--radius);
  transition: background-color var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 40px;
  background-color: var(--color-line);
  color: var(--color-white);
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.1em;
  border-radius: var(--radius);
  transition: opacity var(--transition), transform var(--transition);
}

.btn-line:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

/* ===========================
   ヘッダー
=========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(250, 248, 244, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(61, 43, 31, 0.08);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 2px 16px rgba(61, 43, 31, 0.08);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-img {
  height: 52px;
  width: auto;
  display: block;
}

.logo-sub {
  font-family: var(--font-serif);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
}

.logo-main {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.15em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--color-text);
  transition: color var(--transition);
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}

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

.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
}

.nav a.active {
  color: var(--color-accent);
}

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

.nav-reserve {
  padding: 8px 20px;
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  border-radius: var(--radius);
  transition: background-color var(--transition) !important;
}

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

.nav-reserve:hover {
  background-color: var(--color-primary) !important;
  color: var(--color-white) !important;
}

/* ハンバーガー */
.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-color: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  background-color: var(--color-bg);
  border-top: 1px solid rgba(61, 43, 31, 0.08);
  padding: 16px 24px 24px;
  gap: 4px;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  padding: 12px 0;
  font-size: 15px;
  letter-spacing: 0.1em;
  border-bottom: 1px solid rgba(61, 43, 31, 0.06);
  color: var(--color-text);
  transition: color var(--transition);
}

.mobile-nav a:hover {
  color: var(--color-accent);
}

/* ===========================
   ヒーロー
=========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: #2d1f15;
}

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

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

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(20,12,6,0.55) 0%, rgba(20,12,6,0.72) 100%);
}

.hero-logo {
  width: min(220px, 55vw);
  height: auto;
  margin: 0 auto 24px;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.4));
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--color-white);
  padding: 0 24px;
}

.hero-catch {
  font-family: var(--font-serif);
  font-size: clamp(13px, 2vw, 15px);
  font-weight: 300;
  letter-spacing: 0.35em;
  color: rgba(255,255,255,0.75);
  margin-bottom: 20px;
}

.hero-location {
  font-size: 13px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.55);
  margin-bottom: 48px;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.45);
}

.hero-scroll span {
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.1); }
}

/* ===========================
   お店について
=========================== */
.about {
  background-color: var(--color-bg);
}

.about-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text p {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text);
  margin-bottom: 20px;
}

.about-text p:last-of-type {
  margin-bottom: 36px;
}

.about-sns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.sns-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: opacity var(--transition), transform var(--transition);
}

.sns-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sns-btn.line {
  background-color: var(--color-line);
  color: var(--color-white);
}

.sns-btn.instagram {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: var(--color-white);
}

.sns-btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.about-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-logo-img {
  width: 100%;
  max-width: 380px;
  height: auto;
  margin: 0 auto;
}

/* ===========================
   メニュー
=========================== */
.menu {
  background-color: var(--color-bg);
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.menu-item {
  overflow: hidden;
  border-radius: var(--radius);
}

.menu-img-wrap {
  aspect-ratio: 4/3;
  overflow: hidden;
  background-color: var(--color-surface);
}

.menu-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}

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

.menu-name {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  padding: 10px 4px 0;
  text-align: center;
}

.menu-intro {
  font-size: 14px;
  line-height: 2;
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

.menu-note {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-align: center;
}

/* ===========================
   営業時間
=========================== */
.hours {
  background-color: var(--color-surface);
}

.hours-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.hours-card {
  background-color: var(--color-white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(61, 43, 31, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.hours-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(61, 43, 31, 0.1);
}

.hours-day {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hours-time {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3.5vw, 30px);
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.hours-lo {
  font-size: 13px;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

.hours-note {
  text-align: center;
  font-size: 14px;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

/* 営業カレンダー */
.calendar {
  max-width: 780px;
  margin: 44px auto 0;
  background-color: var(--color-white);
  border-radius: var(--radius);
  padding: 32px 28px 26px;
  box-shadow: 0 2px 12px rgba(61, 43, 31, 0.06);
}

.calendar-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 400;
  text-align: center;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.calendar-legend {
  display: flex;
  justify-content: center;
  gap: 22px;
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 22px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.legend-mark {
  width: 15px;
  height: 15px;
  border-radius: 3px;
  display: inline-block;
}

.legend-mark.is-open {
  background-color: var(--color-white);
  border: 1px solid #ddd2c4;
}

.legend-mark.is-closed {
  background-color: var(--color-accent-light);
}

.calendar-loading {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
  padding: 20px 0;
}

.calendar-months {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 34px;
}

.cal-caption {
  font-family: var(--font-serif);
  font-size: 15px;
  text-align: center;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-head {
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  padding-bottom: 4px;
}

.cal-head.is-sun { color: #b4462f; }
.cal-head.is-sat { color: #4a6b8a; }

.cal-cell {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  line-height: 1;
  border-radius: 3px;
  color: var(--color-text);
}

.cal-cell.is-blank { visibility: hidden; }
.cal-cell.is-sun { color: #b4462f; }
.cal-cell.is-sat { color: #4a6b8a; }

.cal-cell.is-closed {
  background-color: var(--color-accent-light);
  color: var(--color-white);
}

.cal-cell.is-past { opacity: 0.38; }

.cal-cell.is-today {
  box-shadow: inset 0 0 0 2px var(--color-accent);
  font-weight: 600;
}

.calendar-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  margin-top: 20px;
}

/* ===========================
   ご予約
=========================== */
.reserve {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.reserve .section-label {
  color: var(--color-accent-light);
}

.reserve .section-title {
  color: var(--color-white);
}

.reserve-text {
  font-size: 15px;
  line-height: 2;
  color: rgba(255,255,255,0.75);
  margin-bottom: 40px;
  max-width: 520px;
}

.reserve-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===========================
   アクセス
=========================== */
.access {
  background-color: var(--color-bg);
}

.access-body {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.access-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 24px;
  margin-bottom: 32px;
}

.access-list dt {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  padding-top: 2px;
  white-space: nowrap;
}

.access-list dd {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text);
}

.access-list dd a {
  color: var(--color-accent);
  transition: opacity var(--transition);
}

.access-list dd a:hover {
  opacity: 0.75;
}

.sns-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--color-accent);
  transition: opacity var(--transition);
}

.sns-link:hover {
  opacity: 0.7;
}

.access-map {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(61, 43, 31, 0.1);
}

.access-map iframe {
  display: block;
}

/* ===========================
   フッター
=========================== */
.footer {
  background-color: var(--color-primary);
  color: rgba(255,255,255,0.65);
  padding: 56px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 40px;
  align-items: start;
  margin-bottom: 40px;
}

.footer .logo-sub {
  color: var(--color-accent-light);
}

.footer .logo-main {
  color: var(--color-white);
}

.footer-info p {
  font-size: 13px;
  line-height: 2;
}

.footer-info a {
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}

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

.invoice {
  font-size: 11px !important;
  color: rgba(255,255,255,0.4) !important;
  margin-top: 8px;
}

.footer-sns {
  display: flex;
  gap: 16px;
}

.footer-sns a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  transition: background-color var(--transition), color var(--transition);
}

.footer-sns a:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.copyright {
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  letter-spacing: 0.1em;
}

/* ===========================
   フェードイン
=========================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* ===========================
   レスポンシブ
=========================== */
@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

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

  .about-image {
    order: -1;
    aspect-ratio: 16/9;
  }

  .image-placeholder {
    min-height: 240px;
  }

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

  .hours-grid {
    grid-template-columns: 1fr;
    max-width: 340px;
    margin: 0 auto 24px;
  }

  .calendar {
    padding: 26px 16px 22px;
  }

  .calendar-months {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .reserve-btns {
    flex-direction: column;
    align-items: flex-start;
  }

  .access-body {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .btn-primary,
  .btn-line {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}