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

:root {
  --gold: #C9A84C;
  --gold-light: #E8C96A;
  --black: #0A0A0A;
  --dark: #1A1A1A;
  --white: #FFFFFF;
  --gray: #F5F5F5;
  --text: #222222;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

/* ─── HERO ─── */
.hero {
  background: var(--black);
  color: var(--white);
  padding: 0;
  position: relative;
  overflow: hidden;
}

.hero-top-bar {
  background: var(--gold);
  text-align: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--black);
  letter-spacing: 0.05em;
}

/* ─── LOGO IMAGE ─── */
@keyframes logoFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.logo-img {
  display: block;
  width: 560px;
  max-width: 90vw;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  object-position: center;
}


/* ─── LOGO BLOCK ─── */
.logo-block {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  line-height: 1;
}

.logo-block .logo-script {
  font-family: 'Dancing Script', cursive;
  font-size: clamp(14px, 3.5vw, 22px);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.04em;
  margin-bottom: -2px;
}

.logo-block .logo-main {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(72px, 20vw, 140px);
  color: var(--white);
  letter-spacing: 0.01em;
  line-height: 0.85;
  /* distressed texture via text-shadow layering */
  text-shadow:
    2px 2px 0 rgba(0,0,0,0.5),
    -1px -1px 0 rgba(255,255,255,0.04),
    0 0 40px rgba(201,168,76,0.08);
  position: relative;
}

.logo-block .logo-main::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  color: transparent;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0,0,0,0.06) 3px,
    rgba(0,0,0,0.06) 4px
  );
  -webkit-background-clip: text;
  background-clip: text;
  pointer-events: none;
}

.logo-block .logo-dash {
  color: var(--gold);
}

.logo-block .logo-sub {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(11px, 2.8vw, 17px);
  letter-spacing: 0.35em;
  color: rgba(255,255,255,0.55);
  margin-top: 4px;
  text-transform: uppercase;
}

/* ─── LOGO DARK VARIANT (footer) ─── */
.logo-block.dark .logo-script { color: var(--gold); }
.logo-block.dark .logo-main   { color: var(--gold); text-shadow: 0 0 40px rgba(201,168,76,0.2); }
.logo-block.dark .logo-sub    { color: rgba(201,168,76,0.4); }

/* ─── HERO BACKGROUND IMAGE ─── */
.hero-bg-img {
  position: absolute;
  inset: 0;
  background: url('./img/1.jpg') center center / cover no-repeat;
  opacity: 0.13;
  z-index: 0;
  pointer-events: none;
}
.hero { position: relative; }
.hero-brand, .hero-center { position: relative; z-index: 1; }

/* ─── HERO BRAND ─── */
.hero-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 48px 24px 64px;
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

/* ─── PRODUCT WRAP (案④ グロー演出) ─── */
.product-wrap {
  position: relative;
  margin-bottom: 36px;
}

.glow-ring {
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  height: 44px;
  background: radial-gradient(ellipse, rgba(201,168,76,0.35) 0%, transparent 70%);
  filter: blur(14px);
  pointer-events: none;
}

.hero-number {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  margin-bottom: 32px;
  letter-spacing: 0.05em;
}

.hero-brand {
  background: #FFFFFF;
  padding: 16px 32px 12px;
  width: 100%;
  display: block;
  text-align: center;
  animation: logoFadeIn 1.2s ease-out both;
  line-height: 0;
}

.hero-product-img {
  display: block;
  width: 420px;
  max-width: 84vw;
  height: auto;
  filter: drop-shadow(0 0 80px rgba(201,168,76,0.22));
  animation: productFadeIn 1.4s ease-out 0.3s both;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

@keyframes productFadeIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-catch {
  text-align: center;
  padding: 0 16px 8px;
}

.hero-catch h2 {
  font-size: clamp(28px, 8vw, 52px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--white);
}

.hero-catch h2 em {
  color: var(--gold);
  font-style: normal;
}

/* (duplicate rule removed) */

.hero-cta {
  padding: 24px 16px 0;
  text-align: center;
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, var(--gold) 100%);
  color: var(--black);
  font-size: 18px;
  font-weight: 900;
  padding: 20px 48px;
  border-radius: 4px;
  text-decoration: none;
  letter-spacing: 0.05em;
  box-shadow: 0 8px 32px rgba(201,168,76,0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
  width: 100%;
  max-width: 440px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(201,168,76,0.5);
}

.btn-primary small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  margin-top: 4px;
  opacity: 0.7;
}

/* ─── SECTION BASE ─── */
section { padding: 72px 24px; }

.section-label {
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

h2.section-title {
  font-size: clamp(28px, 7vw, 48px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--black);
}

h2.section-title .accent {
  color: var(--gold);
}

.divider {
  width: 48px;
  height: 3px;
  background: var(--gold);
  margin: 24px 0;
}

/* ─── ABOUT / LEAD ─── */
.about {
  background: var(--black);
  color: var(--white);
}

.about h2.section-title { color: var(--white); }

.about p {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
}

/* ─── FORMULA ─── */
.formula {
  background: var(--gray);
}

.formula-headline {
  font-size: clamp(32px, 9vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  color: var(--black);
  margin-bottom: 8px;
}

.formula-headline .gold { color: var(--gold); }

.formula-badge {
  display: inline-block;
  background: var(--black);
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: 2px;
  letter-spacing: 0.1em;
  margin-bottom: 32px;
}

/* ─── FEATURES GRID ─── */
.features { background: var(--black); }

.feature-year {
  font-size: clamp(80px, 22vw, 160px);
  font-weight: 900;
  color: var(--gold);
  line-height: 0.85;
}

.feature-year-label {
  font-size: clamp(24px, 6vw, 40px);
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.1em;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.feature-card {
  background: var(--dark);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 4px;
  padding: 24px 16px;
  text-align: center;
}

.feature-card .icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
}

/* ─── EASY APPLICATION ─── */
.easy { background: var(--white); }

.step-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid #eee;
}

.step-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  min-width: 48px;
}

.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--black);
}

.step-content p {
  font-size: 13px;
  color: #666;
  line-height: 1.7;
}

/* ─── MONITOR SECTION ─── */
.monitor { background: var(--gray); }

.monitor-header {
  margin-bottom: 32px;
}

.monitor-quote {
  background: var(--white);
  border-left: 4px solid var(--gold);
  padding: 20px 24px;
  margin-top: 32px;
  border-radius: 0 4px 4px 0;
}

.monitor-quote p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.monitor-quote .attribution {
  margin-top: 12px;
  font-size: 13px;
  color: #999;
}

.photo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin: 32px 0;
}

.photo-grid .photo-card {
  background: var(--dark);
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/3;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.photo-card-label {
  background: var(--black);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 2px;
  position: absolute;
  bottom: 8px;
  left: 8px;
  letter-spacing: 0.05em;
}

.callout-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold);
  color: var(--black);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 2px;
  margin-bottom: 16px;
}

/* ─── LIFESTYLE ─── */
.lifestyle { background: var(--black); padding: 72px 0; }

.lifestyle-inner { padding: 0 24px; }

.lifestyle-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin-top: 40px;
}

.lifestyle-item {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--dark);
  background-size: 100% !important;
  background-position: center !important;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  transition: background-size 1.8s ease-out;
}

.lifestyle-item.is-visible {
  background-size: 108% !important;
}

.lifestyle-item-text {
  padding: 24px;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  width: 100%;
}

.lifestyle-item-text h3 {
  font-size: clamp(20px, 5vw, 32px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
}

/* ─── COATING DIAGRAM ─── */
.coating { background: var(--white); }

.coating-diagram {
  margin: 40px auto;
  max-width: 480px;
}

.droplets {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 24px;
}

.droplet {
  width: 48px;
  height: 60px;
  background: linear-gradient(135deg, #a8d8f0 0%, #5bb8e8 40%, #2196c8 100%);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  box-shadow: inset -8px -8px 16px rgba(0,0,0,0.15), 0 8px 24px rgba(33,150,200,0.3);
  position: relative;
  animation: dropFall 2s ease-in-out infinite;
}

.droplet:nth-child(2) { animation-delay: 0.3s; }
.droplet:nth-child(3) { animation-delay: 0.6s; }

@keyframes dropFall {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.layer-stack {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,0.12);
}

.layer {
  position: relative;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.layer-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.layer-product {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-align: right;
}

.layer-1 { background: linear-gradient(135deg, #d4af5a 0%, #c9a84c 100%); }
.layer-1 .layer-label, .layer-1 .layer-product { color: #000; }

.layer-2 { background: linear-gradient(135deg, #8a7fa0 0%, #6e6280 100%); }
.layer-2 .layer-label { color: #fff; }
.layer-2 .layer-product { color: rgba(255,255,255,0.85); }

.layer-3 { background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%); height: 40px; }
.layer-3 .layer-label { color: rgba(255,255,255,0.5); }
.layer-3 .layer-product { color: rgba(255,255,255,0.4); }

.coating-copy {
  text-align: center;
  margin-top: 32px;
  font-size: clamp(18px, 5vw, 26px);
  font-weight: 900;
  line-height: 1.5;
  color: var(--black);
}

.coating-copy small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: #999;
  margin-top: 8px;
}

/* ─── OFFER SECTION ─── */
.offer {
  background: var(--black);
  text-align: center;
  padding: 72px 24px;
}

.offer-badge {
  display: inline-block;
  background: #C0392B;
  color: var(--white);
  font-size: 13px;
  font-weight: 900;
  padding: 6px 20px;
  border-radius: 2px;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.offer h2 {
  font-size: clamp(22px, 6vw, 40px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 8px;
}

.offer h2 .gold { color: var(--gold); }

.offer-detail {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 40px;
  line-height: 1.7;
}

.offer-product {
  display: inline-block;
  background: var(--dark);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 8px;
  padding: 24px 32px;
  margin-bottom: 40px;
  width: 100%;
  max-width: 360px;
}

.offer-product .product-name {
  font-size: 28px;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.offer-product .product-sub {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  margin-top: 4px;
}

.offer-free-items {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.free-item {
  background: var(--dark);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  padding: 12px 20px;
  text-align: center;
}

.free-item .free-tag {
  font-size: 10px;
  font-weight: 700;
  color: #C0392B;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 4px;
}

.free-item .free-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
}

/* ─── FINAL CTA ─── */
.final-cta {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, var(--gold) 100%);
  padding: 72px 24px;
  text-align: center;
}

.final-cta h2 {
  font-size: clamp(28px, 8vw, 56px);
  font-weight: 900;
  color: var(--black);
  line-height: 1.1;
  margin-bottom: 24px;
}

.final-cta p {
  font-size: 14px;
  color: rgba(0,0,0,0.6);
  margin-bottom: 40px;
  line-height: 1.7;
}

.btn-dark {
  display: inline-block;
  background: var(--black);
  color: var(--gold);
  font-size: 18px;
  font-weight: 900;
  padding: 20px 48px;
  border-radius: 4px;
  text-decoration: none;
  letter-spacing: 0.05em;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  transition: transform 0.2s;
  cursor: pointer;
  border: none;
  width: 100%;
  max-width: 440px;
}

.btn-dark:hover { transform: translateY(-2px); }

.btn-dark small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: rgba(201,168,76,0.7);
  margin-top: 4px;
}

/* ─── ONLINE SHOP ─── */
.online-shop {
  background: #0f0f0f;
  padding: 72px 24px;
  text-align: center;
}

.online-shop-subtitle {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  line-height: 1.8;
  margin: 16px auto 36px;
  max-width: 760px;
}

.online-shop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 820px;
  margin: 0 auto;
}

.shop-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  background: linear-gradient(135deg, #1a1a1a 0%, #111 100%);
  border: 1px solid rgba(201,168,76,0.28);
  border-radius: 8px;
  padding: 16px 18px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.shop-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  box-shadow: 0 8px 24px rgba(201,168,76,0.2);
}

.shop-name {
  color: var(--white);
  font-weight: 700;
  font-size: 16px;
  text-align: left;
}

.shop-arrow {
  color: var(--gold);
  font-weight: 900;
  font-size: 18px;
}

.shop-card--official {
  background: linear-gradient(135deg, #1a140a 0%, #2a1f0a 100%);
  border-color: var(--gold);
}

/* ─── FOOTER ─── */
footer {
  background: var(--black);
  padding: 32px 24px;
  text-align: center;
  border-top: 1px solid rgba(201,168,76,0.2);
}

footer .notes {
  font-size: 10px;
  color: rgba(255,255,255,0.25);
  line-height: 1.8;
  margin-top: 20px;
}

/* ─── STICKY CTA BAR ─── */
.sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(201,168,76,0.3);
  padding: 12px 16px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sticky-bar-text {
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
}

.sticky-bar-text span {
  color: var(--gold);
}

.btn-sticky {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--black);
  font-size: 14px;
  font-weight: 900;
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  flex-shrink: 0;
}

@media (max-width: 1024px) {
  .mobile-full-bleed-wrap {
    width: 100vw !important;
    max-width: 100vw !important;
    min-width: 100vw !important;
    flex: 0 0 100vw !important;
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
  }

  .mobile-full-bleed-img {
    width: 100% !important;
    max-width: none !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    border-radius: 8px !important;
  }

  .easy-image-wrap {
    position: static !important;
    top: auto !important;
  }
}

@media (max-width: 767px) {
  .formula-image-wrap {
    width: 100% !important;
    max-width: 320px !important;
    min-width: 0 !important;
    flex: 0 1 320px !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }

  .formula-image {
    border-radius: 12px !important;
  }
}

/* ─── RESPONSIVE ─── */
@media (min-width: 768px) {
  section { padding: 96px 48px; }

  .hero-catch h2 { font-size: 72px; }

  .feature-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .photo-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .lifestyle-item { aspect-ratio: 4/3; }

  .coating-diagram { max-width: 560px; }

  .online-shop-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .hero { display: grid; grid-template-columns: 1fr; }

  .hero-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 48px;
  }

  .hero-product-img { width: 100%; max-width: 480px; margin: 0; }

  section { padding: 120px 64px; }

  .content-wide { max-width: 1100px; margin: 0 auto; }

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

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