/* ===== Botgo Beauty — design tokens ===== */
:root {
  --color-bg: #fdf8f4;
  --color-bg-alt: #ffffff;
  --color-blush: #f6dde1;
  --color-blush-dark: #e9b7c1;
  --color-sage: #dfe8dc;
  --color-sage-dark: #b9cdb4;
  --color-gold: #c6a15b;
  --color-gold-soft: #ecd9b3;
  --color-ink: #2b2320;
  --color-ink-soft: #746862;
  --color-ink-faint: #a89e98;
  --font-serif: 'Noto Serif', 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans', -apple-system, sans-serif;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 10px;
  --shadow-soft: 0 20px 45px -20px rgba(43, 35, 32, 0.18);
  --shadow-tight: 0 8px 20px -10px rgba(43, 35, 32, 0.2);
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.01em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 600;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--color-gold);
}

.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-head {
  max-width: 620px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-head h2 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 14px; }
.section-head p { color: var(--color-ink-soft); font-size: 1.05rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--color-ink);
  color: #fff;
  box-shadow: var(--shadow-tight);
}
.btn-primary:hover { box-shadow: var(--shadow-soft); }
.btn-gold {
  background: linear-gradient(135deg, var(--color-gold), #b3823c);
  color: #fff;
  box-shadow: 0 12px 24px -10px rgba(198, 161, 91, 0.55);
}
.btn-outline {
  background: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}
.btn-outline:hover { background: var(--color-ink); color: #fff; }
.btn-ghost {
  background: rgba(255,255,255,0.7);
  border-color: rgba(43,35,32,0.12);
  color: var(--color-ink);
  backdrop-filter: blur(6px);
}
.btn-sm { padding: 10px 20px; font-size: 0.82rem; }
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
}
.site-header.is-scrolled {
  background: rgba(253, 248, 244, 0.88);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(43,35,32,0.06);
  padding: 12px 0;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-serif); font-weight: 700; font-size: 1.35rem; letter-spacing: 0.03em; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(198,161,91,0.4);
  flex-shrink: 0;
}

.nav-links { display: flex; align-items: center; gap: 36px; font-size: 0.92rem; font-weight: 500; }
.nav-links a { position: relative; padding: 4px 0; color: var(--color-ink-soft); transition: color 0.2s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--color-ink); }
.nav-links a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; background: var(--color-gold);
  border-radius: 2px;
}

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(43,35,32,0.15);
  background: rgba(255,255,255,0.7);
  align-items: center; justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ''; display: block; width: 18px; height: 2px; background: var(--color-ink); position: relative; transition: 0.25s ease;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { transform: rotate(45deg); top: 0; }
.nav-toggle.is-open span::after { transform: rotate(-45deg); top: 0; }

.mobile-nav { display: none; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 168px 0 110px;
  overflow: hidden;
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(10px);
  opacity: 0.55;
  z-index: -1;
}
.hero-blob.b1 { width: 480px; height: 480px; background: var(--color-blush); top: -160px; right: -120px; }
.hero-blob.b2 { width: 360px; height: 360px; background: var(--color-sage); bottom: -140px; left: -140px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4.1rem);
  margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  color: var(--color-gold);
  position: relative;
}
.hero p.lead {
  font-size: 1.12rem;
  color: var(--color-ink-soft);
  max-width: 480px;
  margin-bottom: 34px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 46px; }

.hero-badges { display: flex; gap: 28px; flex-wrap: wrap; }
.hero-badges .badge { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: var(--color-ink-soft); font-weight: 500; }
.hero-badges .badge-icon { font-size: 1.15rem; }

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background: var(--color-blush);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.hero-visual::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  width: 160px; height: 160px;
  border: 1px solid rgba(255,255,255,0.55);
  bottom: 12%; right: 10%;
  pointer-events: none;
}
.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-float-card {
  position: absolute;
  bottom: 24px; left: 24px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-tight);
  display: flex; align-items: center; gap: 12px;
  max-width: 260px;
}
.hero-float-card .dot { width: 10px; height: 10px; border-radius: 50%; background: #5fbf7a; flex-shrink: 0; box-shadow: 0 0 0 4px rgba(95,191,122,0.18); }
.hero-float-card strong { display: block; font-size: 0.85rem; }
.hero-float-card span { font-size: 0.76rem; color: var(--color-ink-soft); }

/* ===== Product cards ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.product-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-tight);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  display: flex; flex-direction: column;
  color: inherit;
  text-decoration: none;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); }

.product-thumb {
  aspect-ratio: 1 / 1;
  position: relative;
  overflow: hidden;
  background: var(--color-blush);
}
.product-thumb img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.5s ease;
}
.product-thumb img.is-active { opacity: 1; }
.product-card:hover .product-thumb img.is-active { transform: scale(1.06); }

.product-info { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.product-brand { font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-gold); font-weight: 600; }
.product-name { font-family: var(--font-serif); font-size: 1.2rem; }
.product-foot { display: flex; align-items: center; margin-top: auto; padding-top: 14px; }
.product-more { font-size: 0.85rem; font-weight: 600; color: var(--color-gold); }
.product-card:hover .product-more { text-decoration: underline; }

/* ===== Brand strip ===== */
.brand-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 50px;
}
.brand-strip .brand-name {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  color: var(--color-ink-faint);
  letter-spacing: 0.03em;
  transition: color 0.25s ease;
}
.brand-strip .brand-name:hover { color: var(--color-ink); }

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.step-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  box-shadow: var(--shadow-tight);
  position: relative;
}
.step-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-ink);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 1.2rem;
  margin-bottom: 20px;
}
.step-card h3 { font-size: 1.3rem; margin-bottom: 10px; }
.step-card p { color: var(--color-ink-soft); font-size: 0.92rem; }

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.about-visual {
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: var(--color-sage);
}
.about-visual img { width: 100%; height: 100%; object-fit: cover; display: block; }
.about-copy p { color: var(--color-ink-soft); margin-bottom: 16px; }

/* ===== Instagram CTA band ===== */
.ig-band {
  background: linear-gradient(135deg, var(--color-ink) 0%, #4a3a34 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.ig-band h2 { color: #fff; font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 8px; }
.ig-band p { color: rgba(255,255,255,0.72); max-width: 420px; }
.ig-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 34px;
}
.ig-tile {
  aspect-ratio: 1/1;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.14);
  display: block;
}
.ig-tile img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.4s ease;
}
.ig-tile:hover img { transform: scale(1.08); }

/* ===== Product detail ===== */
.detail-back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.88rem; color: var(--color-ink-soft); margin-bottom: 28px;
}
.detail-back:hover { color: var(--color-ink); }

.detail-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: flex-start;
}

.carousel {
  position: relative;
  overflow: hidden;
  padding: 10px 0 26px;
}
.carousel-track {
  display: flex;
  align-items: center;
  gap: 18px;
  will-change: transform;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  touch-action: pan-y;
  cursor: grab;
}
.carousel-track.is-dragging { transition: none; cursor: grabbing; }
.carousel-slide {
  flex: 0 0 auto;
  width: min(76%, 420px);
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-blush);
  opacity: 0.5;
  transform: scale(0.86);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.carousel-slide.is-active { opacity: 1; transform: scale(1); box-shadow: var(--shadow-soft); }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; }

.carousel-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(43,35,32,0.1);
  box-shadow: var(--shadow-tight);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; cursor: pointer; z-index: 2;
  color: var(--color-ink);
}
.carousel-nav:disabled { opacity: 0.35; cursor: default; }
.carousel-prev { left: 6px; }
.carousel-next { right: 6px; }

.carousel-dots { display: flex; justify-content: center; gap: 8px; }
.carousel-dots button {
  width: 7px; height: 7px; border-radius: 50%; border: none;
  background: var(--color-ink-faint); opacity: 0.4; cursor: pointer; padding: 0;
}
.carousel-dots button.is-active { opacity: 1; background: var(--color-gold); width: 18px; border-radius: 5px; transition: width 0.3s ease; }

.detail-info .eyebrow { margin-bottom: 10px; }
.detail-info h1 { font-size: clamp(1.8rem, 3vw, 2.5rem); margin-bottom: 14px; }
.detail-price { font-size: 1.05rem; font-weight: 600; color: var(--color-gold); margin-bottom: 20px; }
.detail-desc { color: var(--color-ink-soft); line-height: 1.8; margin-bottom: 30px; white-space: pre-line; }
.detail-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { padding: 70px 0 30px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(43,35,32,0.1);
}
.footer-brand p { color: var(--color-ink-soft); font-size: 0.88rem; margin-top: 14px; max-width: 260px; }
.footer-col h4 { font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px; color: var(--color-ink-faint); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { font-size: 0.9rem; color: var(--color-ink-soft); transition: color 0.2s ease; }
.footer-col a:hover { color: var(--color-ink); }
.footer-bottom {
  padding-top: 26px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 0.78rem; color: var(--color-ink-faint);
}
.footer-socials { display: flex; gap: 14px; }
.footer-socials a {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--color-blush);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.95rem;
}


/* ===== Shop page filters ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 50px;
}
.filter-btn {
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid rgba(43,35,32,0.15);
  background: var(--color-bg-alt);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: 0.2s ease;
}
.filter-btn:hover { border-color: var(--color-ink); }
.filter-btn.active { background: var(--color-ink); color: #fff; border-color: var(--color-ink); }

/* ===== Page hero (shop/legal) ===== */
.page-hero {
  padding: 150px 0 70px;
  text-align: center;
}
.page-hero h1 { font-size: clamp(2.2rem, 4vw, 3rem); margin-bottom: 14px; }
.page-hero p { color: var(--color-ink-soft); max-width: 560px; margin: 0 auto; }

/* ===== Legal page ===== */
.legal-block { max-width: 780px; margin: 0 auto 60px; }
.legal-block h2 { font-size: 1.5rem; margin-bottom: 18px; }
.legal-table { width: 100%; border-collapse: collapse; margin-bottom: 10px; }
.legal-table th, .legal-table td { text-align: left; padding: 14px 16px; border-bottom: 1px solid rgba(43,35,32,0.1); font-size: 0.92rem; }
.legal-table th { width: 34%; color: var(--color-ink-soft); font-weight: 500; }
.legal-note {
  background: var(--color-blush);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 0.85rem;
  color: var(--color-ink);
  margin-bottom: 30px;
}
.legal-block p { color: var(--color-ink-soft); margin-bottom: 14px; font-size: 0.94rem; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 420px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 460px; margin: 0 auto; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ig-grid { grid-template-columns: repeat(4, 1fr); }
  .detail-grid { grid-template-columns: 1fr; gap: 8px; }
}

@media (max-width: 720px) {
  .nav-links, .header-actions .btn-outline { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 120px 0 56px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .hero-badges { gap: 16px 22px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .product-info { padding: 14px 14px 16px; }
  .product-name { font-size: 1.02rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .ig-band { flex-direction: column; text-align: center; padding: 34px 22px; }
  .ig-band p { margin: 0 auto; }
  .ig-grid { grid-template-columns: repeat(4, 1fr); gap: 10px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 40px; }
  .steps-grid { gap: 16px; }
  .step-card { padding: 26px 22px; }
  .carousel-slide { width: min(80%, 340px); }
  .carousel-nav { width: 36px; height: 36px; font-size: 1rem; }
  .detail-cta .btn { width: 100%; }
}

@media (max-width: 420px) {
  .product-grid { grid-template-columns: 1fr 1fr; }
  .btn { padding: 14px 22px; }
}

@media (max-width: 720px) {
  .mobile-nav {
    position: fixed; inset: 0; top: 74px;
    background: var(--color-bg);
    padding: 30px 24px;
    display: none;
    flex-direction: column;
    gap: 22px;
    font-size: 1.1rem;
    z-index: 95;
  }
  .mobile-nav.is-open { display: flex; }
  .mobile-nav a { padding: 6px 0; }
}