/* ===== Design System ===== */
:root {
  /* Palette — Warm dark espresso, dominant gold character */
  --bg-primary: #0e0b07;
  --bg-secondary: #1c1610;
  --bg-tertiary: #26200f;
  --bg-elevated: #302818;
  --text-primary: #f4e8d0;
  --text-secondary: #c8aa7a;
  --text-muted: #8a7252;
  --border-subtle: rgba(212, 168, 60, 0.12);
  --border-hover: rgba(212, 168, 60, 0.3);

  /* Accent — burnished dark gold */
  --accent: #d4a820;
  --accent-light: #f0d060;
  --accent-muted: rgba(212, 168, 32, 0.14);
  --accent-glow: rgba(212, 168, 32, 0.22);

  /* Product accents */
  --accent-mate: #d4a820;
  --accent-lite: #e05a47;
  --accent-sticks: #34a873;

  /* Typography */
  --font-display: 'Outfit', -apple-system, sans-serif;
  --font-body: 'Outfit', -apple-system, sans-serif;

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  --space-4xl: 8rem;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 2rem;

  /* Shadows — warm gold-tinted depth */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.55);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.65);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.75);
  --shadow-glow-accent: 0 8px 40px var(--accent-glow);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 300ms var(--ease-out);
  --transition-slow: 500ms var(--ease-out);

  /* Z-index layers */
  --z-base: 1;
  --z-sticky: 200;
  --z-nav: 300;
  --z-overlay: 400;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 50% at 50% 0%, rgba(212, 168, 32, 0.04) 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(212, 168, 32, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

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

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

ul, ol {
  list-style: none;
}

/* ===== Layout ===== */
.container {
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

/* ===== Skip Link ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: 9999;
  padding: 1rem;
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
}
.skip-link:focus {
  top: 0;
}

/* ===== Focus ===== */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--space-lg) 0;
  background: rgba(12, 10, 6, 0.9);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid rgba(212, 168, 60, 0.12);
  transition: padding var(--transition-base);
}

.nav--scrolled {
  padding: var(--space-sm) 0;
}

.nav-container {
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 50%, #c09010 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: opacity var(--transition-fast);
}

.logo:hover .logo-text {
  opacity: 0.8;
}

.logo-tagline {
  font-size: 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  gap: var(--space-2xl);
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  position: relative;
  transition: color var(--transition-fast);
  padding-bottom: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-3xl);
  padding: calc(var(--space-4xl) + 60px) var(--space-xl) var(--space-4xl);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 75% 65% at 12% 45%, rgba(212, 168, 32, 0.14) 0%, transparent 60%),
    radial-gradient(ellipse 55% 45% at 88% 60%, rgba(212, 168, 32, 0.07) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 50% 90%, rgba(212, 168, 32, 0.04) 0%, transparent 50%),
    linear-gradient(180deg, transparent 55%, rgba(12, 10, 6, 0.5) 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 15% 25%, rgba(244, 216, 100, 0.65) 0%, transparent 50%),
    radial-gradient(2px 2px at 75% 15%, rgba(212, 168, 32, 0.7) 0%, transparent 50%),
    radial-gradient(1px 1px at 35% 65%, rgba(244, 216, 100, 0.45) 0%, transparent 50%),
    radial-gradient(1.5px 1.5px at 85% 55%, rgba(212, 168, 32, 0.55) 0%, transparent 50%),
    radial-gradient(1px 1px at 55% 85%, rgba(244, 216, 100, 0.4) 0%, transparent 50%),
    radial-gradient(1px 1px at 28% 78%, rgba(212, 168, 32, 0.5) 0%, transparent 50%),
    radial-gradient(2px 2px at 65% 32%, rgba(244, 216, 100, 0.6) 0%, transparent 50%),
    radial-gradient(1px 1px at 90% 80%, rgba(212, 168, 32, 0.4) 0%, transparent 50%);
  animation: particles 25s ease-in-out infinite;
}

@keyframes particles {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-15px) translateX(8px); }
}

.hero-content {
  position: relative;
  z-index: var(--z-base);
  max-width: 620px;
  padding-inline-start: var(--space-xl);
}

.hero-visual {
  position: relative;
  z-index: var(--z-base);
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(60px);
  opacity: 0.6;
}

.hero-visual-img {
  position: relative;
  z-index: var(--z-base);
  max-height: 420px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.hero-badge {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--accent-muted);
  border: 1px solid rgba(201, 169, 98, 0.2);
  border-radius: 50px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-light);
  margin-bottom: var(--space-xl);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.title-line {
  display: block;
}

.title-line.accent {
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 55%, #b08010 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
  max-width: 55ch;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-2xl);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

.btn:active {
  transform: scale(0.98) translateY(1px);
}

.btn-primary {
  background: linear-gradient(135deg, #e8c840 0%, var(--accent) 45%, #a07818 100%);
  color: #0c0a06;
  font-weight: 600;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-muted);
}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2.5s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== Section Headers ===== */
.section-header {
  margin-bottom: var(--space-3xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.section-label::before {
  content: '';
  display: block;
  width: 1.5rem;
  height: 1px;
  background: linear-gradient(to right, var(--accent), rgba(212, 168, 32, 0.3));
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ===== Features Overview ===== */
.features-overview {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.feature-card {
  padding: var(--space-xl);
  background: rgba(212, 168, 32, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: rgba(212, 168, 32, 0.25);
  background: rgba(212, 168, 32, 0.04);
  transform: translateY(-4px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  margin-bottom: var(--space-lg);
  color: var(--accent);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.feature-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 40ch;
}

/* ===== Products Section ===== */
.products {
  padding: var(--space-4xl) 0;
}

.products-grid {
  display: grid;
  gap: var(--space-2xl);
}

.product-card {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 0;
  padding: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  overflow: hidden;
}

.product-card:hover {
  border-color: rgba(212, 168, 32, 0.22);
  box-shadow: 0 0 40px rgba(212, 168, 32, 0.05);
}

.product-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  min-height: 360px;
  overflow: hidden;
}

.product-glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.4;
  transition: opacity var(--transition-base);
}

.product-card:hover .product-glow {
  opacity: 0.6;
}

.product-visual--mate .product-glow {
  background: radial-gradient(circle, var(--accent-mate) 0%, transparent 70%);
}

.product-visual--lite .product-glow {
  background: radial-gradient(circle, var(--accent-lite) 0%, transparent 70%);
}

.product-visual--sticks .product-glow {
  background: radial-gradient(circle, var(--accent-sticks) 0%, transparent 70%);
}

.product-image {
  position: absolute;
  inset: 0;
  z-index: var(--z-base);
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}

/* Product Info */
.product-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-3xl);
}

.product-badge {
  display: inline-block;
  width: fit-content;
  padding: var(--space-xs) var(--space-md);
  background: var(--accent-muted);
  color: var(--accent-light);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.product-badge--accent {
  background: rgba(224, 90, 71, 0.12);
  color: var(--accent-lite);
}

.product-badge--warm {
  background: rgba(52, 168, 115, 0.12);
  color: var(--accent-sticks);
}

.product-name {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.product-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

.product-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  max-width: 55ch;
}

.product-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.product-highlights li {
  position: relative;
  padding-left: var(--space-md);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.product-highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
}

/* ===== Tech Preview ===== */
.tech-preview {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.tech-content {
  text-align: center;
  max-width: 750px;
  margin-inline: auto;
}

.tech-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  color: var(--accent);
}

.tech-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-3xl);
  max-width: 60ch;
  margin-inline: auto;
}

.tech-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.tech-feature {
  text-align: center;
  padding: var(--space-xl);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: rgba(212, 168, 32, 0.05);
}

.tech-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.tech-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ===== Product Page Hero ===== */
.product-hero {
  min-height: 75dvh;
  padding: calc(var(--space-4xl) + 60px) var(--space-xl) var(--space-4xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-3xl);
  position: relative;
  overflow: hidden;
}

.product-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 18% 50%, rgba(212, 168, 32, 0.11) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 82% 30%, rgba(212, 168, 32, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, transparent 60%, rgba(12, 10, 6, 0.4) 100%);
}

.product-hero-content {
  position: relative;
  z-index: 2;
  max-width: 580px;
  padding-inline-start: var(--space-xl);
}

.product-hero-image {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-product-img {
  max-height: 420px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  transition: opacity 0.3s ease;
}

.product-hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.product-hero-tagline {
  font-size: 1.15rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

.product-hero-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
  max-width: 52ch;
}

/* Color Options */
.color-options {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.color-option {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.color-option:hover,
.color-option.active {
  border-color: var(--accent);
  transform: scale(1.15);
  box-shadow: 0 0 12px var(--accent-glow);
}

.color-option:active {
  transform: scale(0.95);
}

.color-option--silver { background: linear-gradient(135deg, #c0c0c0, #808080); }
.color-option--gold { background: linear-gradient(135deg, #d4af37, #aa8a2e); }
.color-option--blue { background: linear-gradient(135deg, #5a8fb4, #3a6f94); }
.color-option--aqua { background: linear-gradient(135deg, #4db6ac, #00897b); }
.color-option--red { background: linear-gradient(135deg, #e05a47, #c0392b); }
.color-option--purple { background: linear-gradient(135deg, #9b59b6, #8e44ad); }
.color-option--black { background: linear-gradient(135deg, #2a2a2a, #1a1a1a); }

/* Desktop / Mobile toggles */
.desktop-only { /* visible by default — don't override display */ }
.mobile-colors, .mobile-cta { display: none; }

/* ===== Gallery Section ===== */
.gallery-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.gallery-grid {
  display: grid;
  gap: var(--space-lg);
}

.gallery-item {
  text-align: center;
}

.gallery-item img {
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  transition: transform var(--transition-base);
}

.gallery-item:hover img {
  transform: scale(1.02);
}

.gallery-item p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== Benefits Section ===== */
.benefits-section {
  padding: var(--space-4xl) 0;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.benefit-card {
  padding: var(--space-2xl);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  box-shadow: inset 0 1px 0 rgba(212, 168, 32, 0.06);
}

.benefit-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.benefit-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

.benefit-icon svg {
  width: 100%;
  height: 100%;
}

.benefit-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.benefit-text {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
  max-width: 50ch;
}

/* ===== Specs Grid ===== */
.specs-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.spec-item {
  padding: var(--space-xl);
  background: rgba(212, 168, 32, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base);
}

.spec-item:hover {
  border-color: var(--border-hover);
}

.spec-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.spec-value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

/* ===== Compatibility ===== */
.compat-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.compat-grid {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  flex-wrap: wrap;
}

.compat-item {
  text-align: center;
  padding: var(--space-xl);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  min-width: 160px;
  transition: all var(--transition-base);
}

.compat-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.compat-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.compat-name {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ===== SEO Content ===== */
.seo-section {
  padding: var(--space-4xl) 0;
}

.seo-content {
  max-width: 760px;
  margin-inline: auto;
}

.seo-content h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.seo-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.seo-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
  font-size: 0.95rem;
}

.seo-content ul {
  margin-bottom: var(--space-md);
}

.seo-content li {
  position: relative;
  padding-left: var(--space-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 0.95rem;
}

.seo-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: var(--space-4xl) 0;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(212, 168, 32, 0.09) 0%, rgba(212, 168, 32, 0.03) 50%, transparent 100%),
    radial-gradient(ellipse 60% 40% at 50% 50%, rgba(212, 168, 32, 0.05) 0%, transparent 70%);
  border-top: 1px solid var(--border-subtle);
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.cta-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 50ch;
  margin-inline: auto;
}

/* ===== Footer ===== */
.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid rgba(212, 168, 60, 0.14);
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(12, 10, 6, 0) 0%);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(212, 168, 32, 0.4), transparent);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand .logo-text {
  font-size: 1.35rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.footer-links {
  display: flex;
  gap: var(--space-3xl);
}

.footer-column h4 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.footer-column a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--accent);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-disclaimer {
  margin-top: var(--space-xs);
  font-size: 0.75rem !important;
  color: var(--text-muted) !important;
}

/* ===== Scroll-Triggered Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger-reveal > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
  transition-delay: calc(var(--index, 0) * 80ms);
}

.stagger-reveal.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
    padding-top: calc(var(--space-3xl) + 60px);
  }

  .hero-content {
    padding-inline-start: 0;
    max-width: 100%;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .hero-visual-img {
    max-height: 280px;
  }

  .product-card {
    grid-template-columns: 1fr;
  }

  .product-visual {
    min-height: 260px;
    align-self: auto;
  }

  .product-info {
    padding: var(--space-xl);
  }

  .product-hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: calc(var(--space-3xl) + 60px);
  }

  .product-hero-content {
    padding-inline-start: 0;
    max-width: 100%;
    order: 3;
  }

  .product-hero-image {
    order: 1;
  }

  .mobile-colors {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    order: 2;
  }

  .mobile-cta {
    display: block;
    text-align: center;
    margin-top: var(--space-md);
    order: 4;
  }

  .hero-product-img {
    max-height: 300px;
  }

  .desktop-only {
    display: none;
  }

  .color-options {
    justify-content: center;
  }

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

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

  .product-highlights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  :root {
    --space-xl: 1.25rem;
    --space-2xl: 2rem;
    --space-3xl: 3rem;
    --space-4xl: 5rem;
  }

  .container {
    padding-inline: var(--space-lg);
  }

  .nav-links {
    gap: var(--space-lg);
  }

  .nav-link {
    font-size: 0.75rem;
  }

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

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

  .tech-features {
    grid-template-columns: 1fr;
  }

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

  .hero-title {
    font-size: 2rem;
  }

  .product-hero-name {
    font-size: 2rem;
  }

  .footer-links {
    gap: var(--space-2xl);
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .stagger-reveal > * {
    opacity: 1;
    transform: none;
  }
}