@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&display=swap');
/* ═══════════════════════════════════════════
   DESIGN TOKENS
   ═══════════════════════════════════════════ */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #0f0f0f;
  --bg-card: #141414;
  --bg-card-hover: #1a1a1a;
  --bg-primary: #ffffff;
  --bg-secondary: #f4f6f8;
  --bg-card: #ffffff;
  --bg-card-hover: #fafafa;
  --accent: #C9A84C;
  --accent-light: #E0C76E;
  --accent-dark: #A68A30;
  --accent-glow: rgba(201, 168, 76, 0.12);
  --accent-glow-strong: rgba(201, 168, 76, 0.25);
  --text-primary: #f0ece4;
  --text-secondary: #9a9590;
  --text-muted: #5a5550;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(201, 168, 76, 0.25);
  --glass-bg: rgba(255, 255, 255, 0.025);
  --glass-border: rgba(255, 255, 255, 0.06);
  --accent-glow-strong: rgba(201, 168, 76, 0.3);
  --text-primary: #2d3436;
  --text-secondary: #636e72;
  --text-muted: #b2bec3;
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-accent: rgba(201, 168, 76, 0.4);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 25px 60px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 50px rgba(201, 168, 76, 0.08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --container-width: 1200px;
  --section-padding: 120px;
  --nav-height: 80px;
}
/* ═══════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s var(--ease);
}
ul { list-style: none; }
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
/* Section base */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}
.section-header {
  text-align: center;
  margin-bottom: 70px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.section-label::before,
.section-label::after {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 18px;
  color: var(--text-primary);
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}
/* ═══════════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all 0.4s var(--ease);
  background: transparent;
}
#navbar.scrolled {
  background: rgba(10, 10, 10, 0.92);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  z-index: 10;
}
.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: #0a0a0a;
  font-weight: 700;
}
.nav-links {
  display: flex;
  gap: 8px;
}
.nav-links a {
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: all 0.3s var(--ease);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--glass-bg);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 10;
}
/* Language Toggle */
.lang-btn {
  display: flex;
  align-items: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 6px 4px;
  cursor: pointer;
  overflow: hidden;
}
.lang-option {
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-muted);
  border-radius: var(--radius-full);
  transition: all 0.3s var(--ease);
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--font-body);
}
.lang-option.active {
  background: var(--accent);
  color: #0a0a0a;
}
/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 10;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s var(--ease);
  border-radius: 2px;
}
.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}
/* ═══════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #ffffff;
}
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35) saturate(0.8);
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 10, 0.5) 0%,
    rgba(10, 10, 10, 0.3) 40%,
    rgba(10, 10, 10, 0.7) 80%,
    rgba(10, 10, 10, 1) 100%
    rgba(0, 0, 0, 0.6) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    rgba(0, 0, 0, 0.7) 100%
  );
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 900px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 30px;
  animation: fadeInDown 0.8s var(--ease-out) both;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.08;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s var(--ease-out) 0.2s both;
}
.hero-title .accent {
  display: block;
  background: linear-gradient(135deg, var(--accent-light), var(--accent), var(--accent-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--text-secondary);
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
  animation: fadeInUp 0.8s var(--ease-out) 0.4s both;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 0.8s var(--ease-out) 0.6s both;
}
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.35s var(--ease);
  border: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #0a0a0a;
  box-shadow: 0 4px 25px rgba(201, 168, 76, 0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 35px rgba(201, 168, 76, 0.4);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--glass-border);
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  color: #ffffff;
  transform: translateY(-2px);
  background: var(--accent-glow);
  background: rgba(201, 168, 76, 0.3);
}
/* Hero Stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  animation: fadeInUp 0.8s var(--ease-out) 0.8s both;
}
.stat {
  text-align: center;
}
.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.stat-suffix {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
}
.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  color: rgba(255, 255, 255, 0.7);
  margin-top: 6px;
  letter-spacing: 0.5px;
}
/* Divider line between hero stats */
.stat + .stat {
  position: relative;
}
.stat + .stat::before {
  content: '';
  position: absolute;
  left: -30px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background: var(--border-subtle);
}
/* ═══════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════ */
.about {
  background: var(--bg-secondary);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.about-image:hover img {
  transform: scale(1.05);
}
.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  pointer-events: none;
}
.about-image-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(10, 10, 10, 0.85);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 2;
}
.about-image-badge .badge-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.about-image-badge .badge-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.about-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}
.about-content .accent-text {
  color: var(--accent);
}
.about-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
  line-height: 1.8;
}
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease);
}
.about-feature:hover {
  border-color: var(--border-accent);
  background: var(--accent-glow);
}
.about-feature i {
  color: var(--accent);
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}
.about-feature span {
  font-size: 0.88rem;
  font-weight: 500;
}
/* ═══════════════════════════════════════════
   PRODUCTS SECTION
   ═══════════════════════════════════════════ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.4s var(--ease);
  position: relative;
}
.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}
.product-card-image {
  position: relative;
  aspect-ratio: 16/12;
  overflow: hidden;
}
.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.product-card:hover .product-card-image img {
  transform: scale(1.08);
}
.product-card-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, var(--bg-card), transparent);
}
.product-card-body {
  padding: 28px;
}
.product-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.product-card-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
  line-height: 1.7;
}
.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.spec-tag {
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent-light);
}
/* ═══════════════════════════════════════════
   TECHNOLOGY SECTION (PYROLYSIS)
   ═══════════════════════════════════════════ */
.process {
  background: var(--bg-secondary);
}
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.tech-benefits {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.tech-benefits li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.tech-benefits i {
  color: var(--accent);
  font-size: 1.5rem;
  margin-top: 4px;
  flex-shrink: 0;
}
.tech-benefits strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.tech-benefits p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}
.tech-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tech-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}
.tech-flow {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.9);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-accent);
}
.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}
.flow-step span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all 0.3s var(--ease);
}
.flow-step.active span {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
  box-shadow: 0 0 15px var(--accent-glow-strong);
}
.flow-step p {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}
.flow-step.active p {
  color: var(--accent);
}
.flow-arrow {
  color: var(--border-subtle);
  font-size: 1.2rem;
}
/* ═══════════════════════════════════════════
   ADVANTAGES SECTION
   ═══════════════════════════════════════════ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.advantage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}
.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.advantage-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}
.advantage-card:hover::before {
  opacity: 1;
}
.advantage-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  margin-bottom: 22px;
  font-size: 1.3rem;
  color: var(--accent);
  transition: all 0.3s var(--ease);
}
.advantage-card:hover .advantage-icon {
  background: var(--accent);
  color: #0a0a0a;
}
.advantage-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.advantage-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
/* ═══════════════════════════════════════════
   CTA SECTION
   ═══════════════════════════════════════════ */
.cta-section {
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}
.cta-content h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 18px;
  line-height: 1.2;
}
.cta-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 36px;
  line-height: 1.8;
}
/* ═══════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}
.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.8;
}
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}
.contact-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  color: var(--accent);
  flex-shrink: 0;
}
.contact-item-text h4 {
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.contact-item-text p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.5;
}
/* Contact Form */
.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.form-group input,
.form-group textarea {
  padding: 14px 18px;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: all 0.3s var(--ease);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}
.btn-submit {
  width: 100%;
  justify-content: center;
}
/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 50px;
  margin-bottom: 50px;
}
.footer-brand .nav-logo {
  margin-bottom: 18px;
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 24px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all 0.3s var(--ease);
}
.footer-social a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-primary);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all 0.3s var(--ease);
}
.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}
/* ═══════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s var(--ease-out);
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s var(--ease-out);
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s var(--ease-out);
}
.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}
/* Stagger animation delay for children */
.stagger-children > *:nth-child(1) { transition-delay: 0s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.4s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.5s; }
/* ═══════════════════════════════════════════
   KEYFRAME ANIMATIONS
   ═══════════════════════════════════════════ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
/* Grain texture overlay for premium feel */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.02'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}
/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tech-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}
@media (max-width: 768px) {
  :root {
    --section-padding: 60px;
    --nav-height: 70px;
  }
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    z-index: 5;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    font-size: 1.2rem;
    padding: 14px 24px;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }
  .stat + .stat::before {
    display: none;
  }
  .products-grid {
    grid-template-columns: 1fr;
  }
  .tech-flow {
    flex-direction: column;
    gap: 15px;
  }
  
  .flow-arrow {
    transform: rotate(90deg);
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .about-features {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .hero-title {
    font-size: clamp(2.2rem, 8vw, 3.5rem);
  }
}
@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .contact-form-wrapper {
    padding: 24px;
  }
}
/* ═══════════════════════════════════════════
   SCROLL BAR CUSTOM
   ═══════════════════════════════════════════ */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dark);
}
/* Selection color */
::selection {
  background: var(--accent);
  color: #0a0a0a;
}