/* ============================================================
   POP MONSTER × MISO — Black Gold Luxury Design System
   心理暗示型高質感 · 低調奢華 · 國際大牌感
   ============================================================ */

/* ── 1. CSS Variables ── */
:root {
  /* Gold Palette */
  --gold-light:    #F5D98B;
  --gold:          #C9A84C;
  --gold-mid:      #A8893A;
  --gold-dark:     #7A6128;
  --gold-glow:     rgba(201,168,76,0.18);
  --gold-border:   rgba(201,168,76,0.35);
  --gold-border-s: rgba(201,168,76,0.12);

  /* Black Palette */
  --black-deep:    #060608;
  --black-rich:    #0A0A0C;
  --black-card:    #111114;
  --black-elevated:#18181C;
  --black-surface: #1F1F24;
  --black-muted:   #2A2A30;
  --black-line:    rgba(255,255,255,0.06);

  /* Text */
  --text-primary:   #F2ECD6;
  --text-secondary: #B8A87A;
  --text-muted:     #706A56;
  --text-ghost:     rgba(242,236,214,0.35);

  /* Accent */
  --white:          #FFFFFF;
  --red-signal:     #C44;

  /* Typography */
  --font-display:  'Cinzel', 'Playfair Display', 'Noto Serif TC', serif;
  --font-body:     'Inter', 'Noto Sans TC', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl:6rem;

  /* Radius */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 16px;

  /* Shadows */
  --shadow-gold:    0 0 40px rgba(201,168,76,0.15), 0 2px 8px rgba(0,0,0,0.6);
  --shadow-card:    0 4px 32px rgba(0,0,0,0.5);
  --shadow-deep:    0 8px 60px rgba(0,0,0,0.8);

  /* Transitions */
  --t-fast: 0.2s ease;
  --t-med:  0.35s ease;
  --t-slow: 0.6s cubic-bezier(0.16,1,0.3,1);
}

/* ── 2. Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--black-deep);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ── 3. Typography Scale ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}
h1 { font-size: clamp(2rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 600; }
h4 { font-size: 1.15rem; font-weight: 600; }
p  { font-size: 0.97rem; color: var(--text-secondary); line-height: 1.8; }
small { font-size: 0.8rem; color: var(--text-muted); }

/* Gold text helper */
.gold { color: var(--gold); }
.gold-light { color: var(--gold-light); }

/* Section subtitles */
.eyebrow {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 0.75rem;
}

/* ── 4. Layout Utilities ── */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}
.container--narrow { max-width: 820px; }
.container--wide   { max-width: 1400px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }
.flex   { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ── 5. Gold Divider / Ornament ── */
.divider-gold {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: var(--space-lg) 0;
}
.divider-gold::before,
.divider-gold::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-border), transparent);
}
.divider-gold span {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-mid);
}

/* Thin horizontal rule */
hr.gold-rule {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--gold-border) 50%, transparent 100%);
  margin: var(--space-lg) 0;
}

/* ── 6. Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--r-sm);
  transition: all var(--t-med);
  white-space: nowrap;
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 40%, var(--gold-dark) 100%);
  color: var(--black-deep);
  box-shadow: 0 4px 20px rgba(201,168,76,0.3), inset 0 1px 0 rgba(255,255,255,0.2);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(201,168,76,0.45), inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn-gold:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold-border);
}
.btn-outline:hover {
  background: var(--gold-glow);
  border-color: var(--gold);
  box-shadow: 0 0 20px rgba(201,168,76,0.15);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(255,255,255,0.1);
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.2);
  color: var(--text-primary);
}

.btn-shopee {
  background: linear-gradient(135deg, #EE4D2D, #C73E1D);
  color: #fff;
  box-shadow: 0 4px 16px rgba(238,77,45,0.3);
}
.btn-shopee:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(238,77,45,0.4);
}

.btn-sm { padding: 0.55rem 1.25rem; font-size: 0.78rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 0.9rem; }

/* ── 7. Navigation ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: all var(--t-med);
  padding: 0;
}
#navbar.scrolled {
  background: rgba(6,6,8,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gold-border-s);
  box-shadow: 0 4px 40px rgba(0,0,0,0.6);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1rem,4vw,2.5rem);
  max-width: 1400px;
  margin-inline: auto;
}

/* Logo */
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.nav-logo .brand-main {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-mid));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
}
.nav-logo .brand-sub {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--t-fast);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width var(--t-med);
}
.nav-links a:hover { color: var(--gold-light); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--gold); }

/* Nav CTA */
.nav-cta { display: flex; align-items: center; gap: 1rem; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--gold);
  transition: all var(--t-med);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(6,6,8,0.98);
  backdrop-filter: blur(24px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-med);
}
.mobile-nav.open {
  display: flex;
  opacity: 1;
  pointer-events: all;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}
.mobile-nav a:hover { color: var(--gold); }

/* ── 8. Notice Banner ── */
.notice-banner {
  background: linear-gradient(90deg, var(--black-muted), var(--black-elevated), var(--black-muted));
  border-bottom: 1px solid var(--gold-border-s);
  padding: 0.5rem 1rem;
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--gold-mid);
}
.notice-banner strong { color: var(--gold); }

/* ── 9. Hero Section ── */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--black-deep);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(201,168,76,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 60% 80% at 80% 80%, rgba(201,168,76,0.04) 0%, transparent 60%),
    linear-gradient(180deg, var(--black-rich) 0%, var(--black-deep) 100%);
}
/* Subtle grid overlay */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 0%, transparent 80%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 8rem;
  padding-bottom: 4rem;
  width: 100%;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 1rem;
  border: 1px solid var(--gold-border);
  background: rgba(201,168,76,0.05);
  border-radius: 2px;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}
.hero-tag::before {
  content: '';
  width: 20px; height: 1px;
  background: var(--gold);
}
.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: 0.03em;
}
.hero-title em {
  font-style: normal;
  display: block;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-mid) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 2.5rem;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}
.hero-proof {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--black-line);
}
.hero-proof-item {
  text-align: left;
}
.hero-proof-item .num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.hero-proof-item .label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 3px;
}
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--gold-border-s);
  animation: ring-pulse 4s ease-in-out infinite;
}
.hero-visual-ring:nth-child(1) { width: 300px; height: 300px; }
.hero-visual-ring:nth-child(2) { width: 450px; height: 450px; animation-delay: 1s; }
.hero-visual-ring:nth-child(3) { width: 600px; height: 600px; animation-delay: 2s; }
@keyframes ring-pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%       { opacity: 0.1; transform: scale(1.02); }
}
.hero-product-box {
  position: relative;
  z-index: 2;
  width: 320px; height: 320px;
  background: linear-gradient(135deg, var(--black-card) 0%, var(--black-elevated) 100%);
  border: 1px solid var(--gold-border);
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-gold);
}
.hero-product-box .brand-emblem {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}
.hero-product-box .brand-line {
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ── 10. Section Base ── */
.section {
  padding: var(--space-2xl) 0;
  position: relative;
}
.section--dark { background: var(--black-rich); }
.section--card { background: var(--black-card); }
.section--elevated { background: var(--black-elevated); }

.section-header {
  text-align: center;
  max-width: 620px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}
.section-header h2 { margin-bottom: 1rem; }
.section-header p  { font-size: 0.97rem; color: var(--text-secondary); }

/* ── 11. Product Cards ── */
.product-card {
  background: var(--black-card);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: all var(--t-med);
  position: relative;
}
.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201,168,76,0.04) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--t-med);
}
.product-card:hover {
  border-color: var(--gold-border);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}
.product-card:hover::before { opacity: 1; }

.product-card-img {
  width: 100%; aspect-ratio: 4/3;
  background: var(--black-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.product-card-img img { width: 100%; height: 100%; object-fit: cover; }
.product-card-img .product-icon {
  font-size: 3.5rem;
  opacity: 0.4;
}

.product-card-line {
  display: block;
  padding: 0.4rem 1rem;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(201,168,76,0.06);
  border-bottom: 1px solid var(--gold-border-s);
}

.product-card-body {
  padding: 1.4rem;
}
.product-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}
.product-card-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.product-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}
.tag {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.65rem;
  border-radius: 2px;
  border: 1px solid var(--gold-border-s);
  color: var(--text-muted);
}
.tag.tag-gold {
  border-color: var(--gold-border);
  color: var(--gold);
  background: rgba(201,168,76,0.05);
}
.product-card-footer {
  display: flex;
  gap: 0.75rem;
  padding: 1rem 1.4rem;
  border-top: 1px solid var(--black-line);
  background: rgba(0,0,0,0.2);
}

/* ── 12. Feature/Info Blocks ── */
.feature-list { display: flex; flex-direction: column; gap: 1rem; }
.feature-item {
  display: flex;
  gap: 1.25rem;
  padding: 1.25rem;
  background: var(--black-elevated);
  border: 1px solid var(--black-line);
  border-radius: var(--r-md);
  transition: all var(--t-med);
}
.feature-item:hover {
  border-color: var(--gold-border-s);
  background: var(--black-surface);
}
.feature-icon {
  flex-shrink: 0;
  width: 42px; height: 42px;
  background: var(--gold-glow);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.feature-text h4 { font-size: 0.95rem; margin-bottom: 0.25rem; color: var(--text-primary); }
.feature-text p  { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

/* ── 13. Stat / Number Block ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--gold-border-s);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-md);
  overflow: hidden;
}
.stat-item {
  background: var(--black-card);
  padding: 2rem 1.5rem;
  text-align: center;
}
.stat-item .stat-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.stat-item .stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ── 14. Brand Principles ── */
.principle-card {
  background: var(--black-card);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-md);
  padding: 2rem 1.75rem;
  position: relative;
  overflow: hidden;
  transition: all var(--t-med);
}
.principle-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}
.principle-card:hover { border-color: var(--gold-border); }
.principle-card:hover::after { transform: translateX(0); }

.principle-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--gold-border);
  line-height: 1;
  margin-bottom: 1rem;
}
.principle-card h3 {
  font-size: 1.05rem;
  color: var(--gold-light);
  margin-bottom: 0.6rem;
}
.principle-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin: 0;
}

/* ── 15. Testimony / Cases ── */
.case-card {
  background: var(--black-elevated);
  border: 1px solid var(--black-line);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  padding: 1.5rem;
  transition: all var(--t-med);
}
.case-card:hover {
  border-color: var(--gold-border);
  background: var(--black-surface);
  box-shadow: var(--shadow-gold);
}
.case-quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 1.25rem;
}
.case-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.case-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gold-glow);
  border: 1px solid var(--gold-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--gold);
  font-weight: 700;
}
.case-author-info .name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}
.case-author-info .role {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.case-stars { color: var(--gold); font-size: 0.75rem; margin-bottom: 0.75rem; letter-spacing: 2px; }

/* ── 16. FAQ Accordion ── */
.faq-list { display: flex; flex-direction: column; }
.faq-item {
  border-bottom: 1px solid var(--black-line);
}
.faq-item:first-child { border-top: 1px solid var(--black-line); }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}
.faq-question:hover { color: var(--gold-light); }
.faq-question.open { color: var(--gold); }
.faq-icon {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border: 1px solid var(--gold-border-s);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--gold);
  transition: all var(--t-med);
}
.faq-question.open .faq-icon {
  background: var(--gold-glow);
  border-color: var(--gold-border);
  transform: rotate(45deg);
}
.faq-answer {
  display: none;
  padding: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq-answer.open { display: block; }

/* ── 17. Steps / Process ── */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}
.steps::before {
  content: '';
  position: absolute;
  top: 2.2rem;
  left: calc(12.5% + 1.5rem);
  right: calc(12.5% + 1.5rem);
  height: 1px;
  background: linear-gradient(90deg, var(--gold), var(--gold-border), var(--gold));
  z-index: 0;
}
.step-item {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: var(--black-deep);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin: 0 auto 1rem;
  box-shadow: 0 0 20px rgba(201,168,76,0.3);
}
.step-item h4 { font-size: 0.9rem; color: var(--text-primary); margin-bottom: 0.4rem; }
.step-item p  { font-size: 0.8rem; color: var(--text-muted); line-height: 1.7; margin: 0; }

/* ── 18. Comparison Table ── */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.compare-table thead th {
  padding: 1rem 1.25rem;
  text-align: left;
  background: var(--black-elevated);
  border-bottom: 1px solid var(--gold-border);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}
.compare-table thead th:first-child { color: var(--text-muted); }
.compare-table tbody td {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--black-line);
  color: var(--text-secondary);
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover td { background: rgba(201,168,76,0.02); }
.compare-table .highlight-col {
  color: var(--gold-light);
  font-weight: 500;
}
.compare-table .check { color: var(--gold); }
.compare-table .cross { color: var(--text-muted); }

/* ── 19. Contact / CTA Strip ── */
.cta-strip {
  background: linear-gradient(135deg, var(--black-elevated) 0%, var(--black-muted) 100%);
  border-top: 1px solid var(--gold-border-s);
  border-bottom: 1px solid var(--gold-border-s);
  padding: var(--space-xl) 0;
  text-align: center;
}
.cta-strip h2 { margin-bottom: 0.75rem; }
.cta-strip p { margin-bottom: 2rem; }
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* ── 20. Footer ── */
footer {
  background: var(--black-rich);
  border-top: 1px solid var(--gold-border-s);
  padding: var(--space-xl) 0 var(--space-md);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: var(--space-lg);
}
.footer-brand .brand-main {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.18em;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
}
.footer-brand .brand-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-top: 0.75rem;
  margin-bottom: 1.5rem;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.footer-contact-item .icon {
  width: 28px; height: 28px;
  background: var(--gold-glow);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.footer-contact-item span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.footer-col h5 {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}
.footer-col ul li {
  margin-bottom: 0.6rem;
}
.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--t-fast);
}
.footer-col ul li a:hover { color: var(--gold-light); }
.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid var(--black-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
}
.footer-brand-tag {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-mid);
}

/* ── 21. Floating Contacts ── */
.float-contacts {
  position: fixed;
  right: 1.25rem;
  bottom: 1.75rem;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.float-btn {
  width: 46px; height: 46px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--black-deep);
  transition: all var(--t-med);
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  text-decoration: none;
}
.float-btn.shopee { background: #EE4D2D; }
.float-btn.line   { background: #06C755; }
.float-btn.wp     { background: #25D366; }
.float-btn:hover  { transform: scale(1.1) translateX(-4px); }

/* ── 22. Product Hero (Individual Pages) ── */
.product-hero {
  padding-top: 8rem;
  padding-bottom: 4rem;
  background: var(--black-rich);
  border-bottom: 1px solid var(--gold-border-s);
}
.product-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.product-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.85rem;
  border: 1px solid var(--gold-border);
  background: rgba(201,168,76,0.05);
  border-radius: 2px;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.product-hero h1 { margin-bottom: 0.5rem; }
.product-hero-subtitle {
  font-size: 1.1rem;
  color: var(--gold-mid);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}
.product-hero-desc {
  font-size: 0.97rem;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}
.product-hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.highlight-chip {
  padding: 0.35rem 0.85rem;
  background: rgba(201,168,76,0.06);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-sm);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}
.product-img-box {
  position: relative;
  background: linear-gradient(135deg, var(--black-card), var(--black-elevated));
  border: 1px solid var(--gold-border);
  border-radius: var(--r-lg);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-gold);
}
.product-img-box img { width: 90%; height: 90%; object-fit: contain; }
.product-img-box .product-emblem {
  font-family: var(--font-display);
  font-size: 6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.5;
}
.product-img-corner {
  position: absolute;
  width: 20px; height: 20px;
  border-color: var(--gold);
  border-style: solid;
}
.product-img-corner.tl { top: 12px; left: 12px; border-width: 1px 0 0 1px; }
.product-img-corner.tr { top: 12px; right: 12px; border-width: 1px 1px 0 0; }
.product-img-corner.bl { bottom: 12px; left: 12px; border-width: 0 0 1px 1px; }
.product-img-corner.br { bottom: 12px; right: 12px; border-width: 0 1px 1px 0; }

/* ── 23. Dilution Table / Spec Box ── */
.spec-box {
  background: var(--black-card);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-md);
  overflow: hidden;
}
.spec-box-header {
  padding: 0.85rem 1.25rem;
  background: linear-gradient(90deg, var(--black-elevated), var(--black-muted));
  border-bottom: 1px solid var(--gold-border-s);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table td {
  padding: 0.8rem 1.25rem;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--black-line);
}
.spec-table tr:last-child td { border-bottom: none; }
.spec-table td:first-child { color: var(--text-muted); font-weight: 500; }
.spec-table td:last-child { color: var(--text-secondary); }

/* Dilution chips */
.dilution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.dilution-chip {
  background: var(--black-elevated);
  border: 1px solid var(--gold-border-s);
  border-radius: var(--r-md);
  padding: 1.25rem;
  transition: all var(--t-med);
}
.dilution-chip:hover {
  border-color: var(--gold-border);
  background: var(--black-surface);
}
.dilution-chip .scene {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.4rem;
  display: block;
}
.dilution-chip .ratio {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}
.dilution-chip .note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* ── 24. Tab System ── */
.tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--black-line);
  margin-bottom: var(--space-lg);
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-nav::-webkit-scrollbar { display: none; }
.tab-btn {
  padding: 0.85rem 1.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  transition: all var(--t-fast);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── 25. Material Grid ── */
.material-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.75rem;
}
.material-item {
  background: var(--black-elevated);
  border: 1px solid var(--black-line);
  border-radius: var(--r-md);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: all var(--t-med);
}
.material-item:hover {
  border-color: var(--gold-border-s);
  background: var(--black-surface);
}
.material-item .mat-icon { font-size: 1.75rem; margin-bottom: 0.5rem; }
.material-item .mat-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

/* ── 26. Breadcrumb ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 1rem 0;
}
.breadcrumb a { transition: color var(--t-fast); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb span { color: var(--gold-border); }

/* ── 27. VIP / Member Block ── */
.vip-banner {
  background: linear-gradient(135deg, var(--black-elevated) 0%, rgba(201,168,76,0.05) 50%, var(--black-elevated) 100%);
  border: 1px solid var(--gold-border);
  border-radius: var(--r-md);
  padding: 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.vip-banner::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse 40% 40% at 50% 50%, rgba(201,168,76,0.05), transparent);
  pointer-events: none;
}
.vip-banner .crown { font-size: 2.5rem; margin-bottom: 1rem; }
.vip-banner h3 { color: var(--gold-light); margin-bottom: 0.75rem; }
.vip-banner p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 1.5rem;
}
.vip-benefits {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.vip-benefit-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.vip-benefit-item::before {
  content: '✦';
  color: var(--gold);
  font-size: 0.7rem;
}

/* ── 28. Scroll Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── 29. Page-specific top padding ── */
.page-top { padding-top: 5.5rem; }

/* ── 30. Utility ── */
.text-center { text-align: center; }
.text-gold  { color: var(--gold); }
.text-muted { color: var(--text-muted); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-lg { margin-top: var(--space-lg); }
.hidden { display: none !important; }

/* ── 31. Responsive ── */
@media (max-width: 1024px) {
  .stat-grid { grid-template-columns: repeat(2,1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(2,1fr); }
  .steps::before { display: none; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero-inner, .product-hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .stat-grid { grid-template-columns: repeat(2,1fr); }
  .steps { grid-template-columns: 1fr 1fr; }
  .float-contacts { bottom: 1rem; right: 0.75rem; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-proof { flex-wrap: wrap; gap: 1.5rem; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .btn-lg { padding: 0.85rem 1.75rem; }
}