@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;700&family=Bebas+Neue&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }

:root {
  --black: #0f0f0f;
  --dark: #1a1a1a;
  --mid: #2a2a2a;
  --gold: #c8a84b;
  --white: #f0f0f0;
  --gray: #888;
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 300;
  line-height: 1.8;
  overflow-x: hidden;
}

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

/* ===== HAMBURGER ===== */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
  z-index: 200;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s;
}
.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); }

/* ===== HEADER ===== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(15,15,15,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(200,168,75,0.2);
}

.header-logo img {
  height: 48px;
  width: auto;
}

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

nav a {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  transition: color 0.2s;
}
nav a:hover, nav a.active { color: var(--gold); }

.nav-sns {
  display: flex;
  gap: 16px;
}
.nav-sns a {
  font-size: 18px;
  color: var(--gray);
  transition: color 0.2s;
}
.nav-sns a:hover { color: var(--gold); }

/* ===== HERO ===== */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  filter: brightness(0.45);
}

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

.hero-content h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(56px, 10vw, 120px);
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--white);
}

.hero-content .sub {
  font-size: 13px;
  letter-spacing: 0.25em;
  color: var(--gold);
  margin-top: 12px;
  text-transform: uppercase;
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gray);
  text-transform: uppercase;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ===== SECTION ===== */
section { padding: 100px 40px; }

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(36px, 5vw, 60px);
  letter-spacing: 0.1em;
  color: var(--white);
}

.section-sub {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-lead {
  font-size: 14px;
  color: var(--gray);
  margin-top: 12px;
  max-width: 560px;
}

/* ===== HOME CARDS ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin-top: 60px;
}

.card {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}

.card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transition: transform 0.6s ease;
  filter: brightness(0.55);
}

.card:hover img {
  transform: scale(1.05);
  filter: brightness(0.7);
}

.card-label {
  position: absolute;
  bottom: 28px;
  left: 28px;
  z-index: 1;
}

.card-label .en {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(24px, 3vw, 40px);
  letter-spacing: 0.08em;
  line-height: 1;
}

.card-label .ja {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-top: 4px;
}

/* ===== PAGE HERO (inner pages) ===== */
.page-hero {
  height: 40vh;
  min-height: 280px;
  display: flex;
  align-items: flex-end;
  padding: 48px 40px;
  background: var(--dark);
  border-bottom: 1px solid var(--mid);
  margin-top: 80px;
}

/* ===== PRODUCT ===== */
.product-intro {
  max-width: 720px;
  margin: 0 auto 80px;
  text-align: center;
}

.product-intro p {
  font-size: 14px;
  color: var(--gray);
  line-height: 2;
  margin-top: 20px;
}

.product-notice {
  margin-top: 16px;
  padding: 16px 20px;
  background: var(--mid);
  border-left: 3px solid var(--gold);
  font-size: 13px;
  color: var(--gray);
  text-align: left;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}


.product-card {
  background: var(--dark);
  border: 1px solid var(--mid);
  overflow: hidden;
  transition: border-color 0.3s;
}
.product-card:hover { border-color: var(--gold); }

.product-card-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: #222;
  padding: 24px;
}

.product-card-body {
  padding: 24px;
}

.product-model {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 28px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.product-desc {
  font-size: 13px;
  color: var(--gray);
  margin-top: 8px;
  line-height: 1.8;
}

.product-spec {
  margin-top: 16px;
  font-size: 12px;
  color: var(--gray);
  border-top: 1px solid var(--mid);
  padding-top: 16px;
}
.product-spec span { color: var(--white); }

.product-price {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 32px;
  color: var(--white);
  margin-top: 16px;
}
.product-price small { font-size: 14px; font-family: 'Noto Sans JP', sans-serif; color: var(--gray); }

/* ===== PRODUCT GALLERY ===== */
.product-gallery {
  background: #f7f7f7;
}

.product-gallery-main {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  padding: 20px;
  transition: opacity 0.15s;
}

.product-thumbs {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  background: #efefef;
  border-top: 1px solid #e0e0e0;
}

.product-thumb {
  width: 56px;
  height: 56px;
  object-fit: contain;
  background: #fff;
  padding: 4px;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.2s, border-color 0.2s;
  border: 2px solid transparent;
  flex-shrink: 0;
}

.product-thumb:hover { opacity: 0.8; }
.product-thumb.active {
  opacity: 1;
  border-color: var(--gold);
}

.btn-amazon {
  display: block;
  margin-top: 16px;
  padding: 12px 0;
  text-align: center;
  background: var(--gold);
  color: var(--black);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: opacity 0.2s;
}
.btn-amazon:hover { opacity: 0.85; }

/* ===== MAKING ===== */
.making-intro {
  max-width: 720px;
  margin: 0 auto 80px;
  text-align: center;
}

.making-steps {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.making-step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 400px;
  border-bottom: 1px solid var(--mid);
}

.making-step:nth-child(even) .making-step-img { order: 2; }
.making-step:nth-child(even) .making-step-body { order: 1; }

.making-step-img {
  overflow: hidden;
}
.making-step-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.8);
  transition: transform 0.6s;
}
.making-step:hover .making-step-img img { transform: scale(1.03); }

.making-step-body {
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--dark);
}

.step-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 80px;
  color: var(--mid);
  line-height: 1;
  margin-bottom: 8px;
}

.step-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}

.step-desc {
  font-size: 14px;
  color: var(--gray);
  line-height: 2;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-person {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 60px;
  padding: 24px;
  background: var(--dark);
  border: 1px solid var(--mid);
}

.faq-person img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
}

.faq-person-info {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.8;
}
.faq-person-info strong { color: var(--white); font-size: 15px; }

.faq-item {
  border-bottom: 1px solid var(--mid);
  padding: 32px 0;
}

.faq-q {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  cursor: pointer;
}

.faq-icon {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 24px;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.faq-q-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.6;
}

.faq-a {
  margin-top: 20px;
  padding-left: 40px;
  font-size: 14px;
  color: var(--gray);
  line-height: 2;
}

/* ===== CONTACT ===== */
.contact-wrap {
  max-width: 640px;
  margin: 0 auto;
}

.contact-lead {
  text-align: center;
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 48px;
  line-height: 2;
}

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

.form-group label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.form-group label span { color: #e55; margin-left: 4px; }

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--dark);
  border: 1px solid var(--mid);
  color: var(--white);
  padding: 14px 16px;
  font-size: 14px;
  font-family: 'Noto Sans JP', sans-serif;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus { border-color: var(--gold); }

.form-group textarea { resize: vertical; min-height: 160px; }

.btn-submit {
  width: 100%;
  padding: 16px;
  background: var(--gold);
  color: var(--black);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
  font-family: 'Noto Sans JP', sans-serif;
}
.btn-submit:hover { opacity: 0.85; }

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
  background: var(--dark);
  border: 1px solid var(--gold);
  font-size: 14px;
  color: var(--gray);
  line-height: 2;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  max-width: 1000px;
  margin: 0 auto;
  align-items: center;
}

.about-img img {
  width: 100%;
  object-fit: cover;
  object-position: left center;
}

.about-body .section-sub { margin-bottom: 8px; }
.about-body .section-title { margin-bottom: 32px; }

.about-text {
  font-size: 14px;
  color: var(--gray);
  line-height: 2.2;
}

.about-text p + p { margin-top: 20px; }

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--mid);
  padding: 60px 40px 40px;
  text-align: center;
}

.footer-logo {
  display: flex;
  justify-content: center;
}

.footer-logo img {
  height: 80px;
  margin-bottom: 28px;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 24px;
}

.footer-nav a {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--gold); }

.footer-sns {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 32px;
}

.footer-sns a {
  font-size: 20px;
  color: var(--gray);
  transition: color 0.2s;
}
.footer-sns a:hover { color: var(--gold); }

.footer-copy {
  font-size: 11px;
  color: var(--gray);
  letter-spacing: 0.05em;
}

/* ===== RESPONSIVE ===== */

/* タブレット */
@media (max-width: 1024px) {
  header { padding: 12px 24px; }
  nav { gap: 18px; }
  nav a { font-size: 12px; }

  .about-grid { gap: 40px; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
}

/* スマホ */
@media (max-width: 768px) {
  header {
    padding: 12px 16px;
    position: fixed;
  }

  .hamburger { display: flex; }

  /* ナビはドロワーとして画面右から出現 */
  nav {
    position: fixed;
    top: 0; right: 0;
    width: 240px;
    height: 100vh;
    background: rgba(15,15,15,0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 28px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 150;
    border-left: 1px solid rgba(200,168,75,0.2);
  }
  nav.open { transform: translateX(0); }
  nav a { font-size: 15px; letter-spacing: 0.15em; }

  .nav-sns { gap: 12px; }

  section { padding: 60px 16px; }

  .cards-grid { grid-template-columns: 1fr; }

  .products-grid { grid-template-columns: 1fr; }

  .making-step {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .making-step:nth-child(even) .making-step-img { order: 0; }
  .making-step:nth-child(even) .making-step-body { order: 0; }
  .making-step-img { aspect-ratio: 16/9; }
  .making-step-body { padding: 32px 16px; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .faq-person {
    flex-direction: column;
    text-align: center;
  }

  .page-hero { padding: 32px 16px; min-height: 200px; }
  .footer-nav { flex-wrap: wrap; gap: 16px; }

  .hero-content h1 { font-size: clamp(40px, 14vw, 80px); }
}