/* ========================================
   炭焔 TANEN - Portfolio Site
   Base: Deep Black / Charcoal
   Accent: Fire Red / Orange / Gold
   ======================================== */

:root {
  --black: #0A0A0A;
  --charcoal: #1C1C1C;
  --charcoal-light: #2A2A2A;
  --fire-red: #C41E3A;
  --fire-orange: #E85D04;
  --gold: #C9A227;
  --gold-light: #D4AF37;
  --off-white: #F5F0E8;
  --soft-gray: #A8A29E;
  --text-main: #F5F0E8;
  --text-muted: #A8A29E;
}

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

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

body {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  background-color: var(--black);
  color: var(--text-main);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(1100px, 90%);
  margin: 0 auto;
}

/* ----------------------------------------
   固定ヘッダー
   ---------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 18px 0;
  background: linear-gradient(to bottom, rgba(10,10,10,0.85), transparent);
  transition: background 0.4s ease, padding 0.4s ease;
}

.site-header.scrolled {
  background: rgba(10, 10, 10, 0.95);
  padding: 12px 0;
  border-bottom: 1px solid rgba(201, 162, 39, 0.12);
}

.header-inner {
  width: min(1200px, 92%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  font-size: 1.35rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  font-weight: 500;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header-nav a {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--soft-gray);
  transition: color 0.3s ease;
}

.header-nav a:hover {
  color: var(--off-white);
}

.header-cta {
  padding: 8px 20px !important;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  letter-spacing: 0.15em;
  transition: background 0.35s ease, color 0.35s ease !important;
}

.header-cta:hover {
  background: var(--gold);
  color: var(--black) !important;
}

/* ----------------------------------------
   FV / HERO
   ---------------------------------------- */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--black);
}

.hero-visual {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transform-origin: center center;
  will-change: transform;
  animation: slowZoom 28s ease-in-out infinite alternate;
}

@keyframes slowZoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.07); }
}

/* FV内ご予約ボタン */
.hero-cta {
  position: absolute;
  bottom: 48px;
  right: 48px;
  z-index: 20;
  padding: 14px 36px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  background: rgba(10, 10, 10, 0.4);
  backdrop-filter: blur(4px);
  transition: background 0.35s ease, color 0.35s ease;
}

.hero-cta:hover {
  background: var(--gold);
  color: var(--black);
}

/* ----------------------------------------
   無限横スクロール
   ---------------------------------------- */
.marquee-section {
  width: 100%;
  background: #0A0A0A;
  padding: 88px 0; /* 上下に広い黒い余白 → 黒い空間の中を作品が流れる印象 */
  overflow: hidden;
  border-top: 1px solid rgba(201, 162, 39, 0.06);
  border-bottom: 1px solid rgba(201, 162, 39, 0.06);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 100s linear infinite; /* さらにゆったり */
  will-change: transform;
}

.marquee-track:hover {
  animation-play-state: paused;
}

.marquee-item {
  flex-shrink: 0;
  width: 290px;   /* 当初の約55%程度 */
  height: 160px;
  margin-right: 48px; /* 間隔を大きく取り、帯ではなく独立した作品として見せる */
  overflow: hidden;
  position: relative;
  background: transparent;
  border-radius: 0;
}

.marquee-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s ease;
}

.marquee-item:hover img {
  transform: scale(1.04);
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ----------------------------------------
   共通セクション
   ---------------------------------------- */
section {
  padding: 120px 0;
}

.section-en {
  font-family: "Cormorant Garamond", serif;
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  margin-bottom: 16px;
  font-weight: 400;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.08em;
  margin-bottom: 48px;
  color: var(--off-white);
}

/* ----------------------------------------
   CONCEPT（画像にテキスト入りのため、画像を主役に）
   ---------------------------------------- */
.concept {
  background: var(--black);
  padding: 0;
}

.concept-visual-wrap {
  width: 100%;
  overflow: hidden;
}

.concept-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ----------------------------------------
   MENU
   ---------------------------------------- */
.menu {
  background: var(--charcoal);
}

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

.menu-card {
  background: var(--black);
  border: 1px solid rgba(201, 162, 39, 0.12);
  transition: border-color 0.4s ease, transform 0.4s ease;
}

.menu-card:hover {
  border-color: rgba(201, 162, 39, 0.35);
  transform: translateY(-4px);
}

.menu-img-wrap {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.menu-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s ease;
}

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

.menu-card h3 {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  padding: 24px 24px 8px;
  color: var(--off-white);
}

.menu-card p {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--soft-gray);
  padding: 0 24px 28px;
  letter-spacing: 0.04em;
}

/* ----------------------------------------
   SPACE
   ---------------------------------------- */
.space {
  background: var(--black);
}

.space-content {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: center;
}

.space-text p {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--soft-gray);
  margin-bottom: 1.6em;
  letter-spacing: 0.05em;
}

.space-text p:last-child {
  margin-bottom: 0;
  color: var(--off-white);
}

.space-img-wrap {
  overflow: hidden;
  border: 1px solid rgba(201, 162, 39, 0.15);
}

.space-img-wrap img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 1.2s ease;
}

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

/* ----------------------------------------
   ACCESS
   ---------------------------------------- */
.access {
  background: var(--charcoal);
  text-align: center;
  padding-bottom: 60px;
}

.access-info {
  max-width: 480px;
  margin: 0 auto;
}

.brand-sub {
  font-family: "Cormorant Garamond", serif;
  font-size: 1rem;
  letter-spacing: 0.5em;
  color: var(--gold);
  margin-bottom: 32px;
}

.access-info address {
  font-style: normal;
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--soft-gray);
  line-height: 2;
  margin-bottom: 28px;
  letter-spacing: 0.05em;
}

.hours {
  font-size: 0.9rem;
  color: var(--soft-gray);
  letter-spacing: 0.04em;
}

/* ----------------------------------------
   予約フォーム
   ---------------------------------------- */
.reserve {
  background: var(--black);
  padding-bottom: 140px;
}

.reserve-note {
  font-size: 0.8rem;
  color: var(--soft-gray);
  margin-bottom: 48px;
  letter-spacing: 0.04em;
  opacity: 0.8;
}

.reserve-form {
  max-width: 720px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  margin-bottom: 28px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--soft-gray);
  margin-bottom: 10px;
}

.form-group .req {
  color: var(--gold);
  font-size: 0.75rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--charcoal);
  border: 1px solid rgba(201, 162, 39, 0.2);
  color: var(--off-white);
  font-family: inherit;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border-radius: 0;
  transition: border-color 0.3s ease, background 0.3s ease;
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  background: #222;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #666;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23C9A227' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.btn-submit {
  display: block;
  width: 100%;
  max-width: 360px;
  margin: 16px auto 0;
  padding: 18px 32px;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: inherit;
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: background 0.35s ease, color 0.35s ease;
}

.btn-submit:hover {
  background: var(--gold);
  color: var(--black);
}

.form-success {
  text-align: center;
  padding: 60px 20px;
  color: var(--off-white);
}

.form-success p {
  margin-bottom: 32px;
  letter-spacing: 0.06em;
}

/* ----------------------------------------
   FOOTER
   ---------------------------------------- */
.footer {
  background: var(--charcoal);
  padding: 48px 0;
  text-align: center;
  border-top: 1px solid rgba(201, 162, 39, 0.1);
}

.footer-logo {
  font-size: 1.4rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-bottom: 12px;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--soft-gray);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.footer-note {
  font-size: 0.7rem;
  color: #666;
  letter-spacing: 0.03em;
}

/* ----------------------------------------
   スマホ固定ご予約ボタン
   ---------------------------------------- */
.mobile-reserve-btn {
  display: none;
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
  padding: 14px 40px;
  background: rgba(10, 10, 10, 0.9);
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  transition: background 0.3s ease, color 0.3s ease;
}

.mobile-reserve-btn:hover {
  background: var(--gold);
  color: var(--black);
}

/* ----------------------------------------
   RESPONSIVE
   ---------------------------------------- */
@media (max-width: 900px) {
  .header-nav a:not(.header-cta) {
    display: none;
  }

  .menu-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .space-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .marquee-item {
    width: 240px;
    height: 132px;
  }

  .marquee-section {
    padding: 56px 0;
  }

  .hero-cta {
    bottom: 32px;
    right: 24px;
    padding: 12px 28px;
    font-size: 0.8rem;
  }
}

@media (max-width: 600px) {
  section {
    padding: 80px 0;
  }

  .marquee-item {
    width: 200px;
    height: 110px;
  }

  .marquee-section {
    padding: 48px 0;
  }

  .section-title {
    margin-bottom: 36px;
  }

  .mobile-reserve-btn {
    display: block;
  }

  .hero-cta {
    display: none; /* スマホは下部固定ボタンに任せる */
  }

  .header-cta {
    padding: 7px 16px !important;
    font-size: 0.75rem;
  }
}

/* ----------------------------------------
   写真の静かなフェードイン
   ---------------------------------------- */
.fade-photo {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 1.1s ease, transform 1.1s ease;
}

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

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
  .hero-img {
    animation: none;
  }
  .marquee-track {
    animation: none;
  }
  .fade-photo {
    opacity: 1;
    transform: none;
    transition: none;
  }
}