/* ==========================================================================
   AD SPINE - Core Design System & Styles (2026)
   Estética: Glassmorphism / Tech-Medical Premium
   ========================================================================== */

/* Design Tokens & Theme Variables */
:root {
  --font-title: 'Raleway', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  /* Colors */
  --bg-primary: #070a13;
  --bg-secondary: #0b1120;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-cyan: #00f0ff;
  --accent-blue: #2563eb;
  --accent-cobalt: #1d4ed8;
  --accent-glow: rgba(0, 240, 255, 0.15);
  
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(0, 240, 255, 0.25);
  --glass-shadow: rgba(0, 0, 0, 0.4);
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Ambient Glow Backgrounds */
.glow-bg {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
}

.glow-1 {
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
  top: -10vw;
  right: -10vw;
}

.glow-2 {
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
  top: 40vw;
  left: -20vw;
}

.glow-3 {
  width: 35vw;
  height: 35vw;
  background: radial-gradient(circle, var(--accent-cobalt) 0%, transparent 70%);
  bottom: 10vw;
  right: -5vw;
}

/* Glassmorphism Component Base Style */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px 0 var(--glass-shadow);
  border-radius: 16px;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: 2.75rem;
  font-weight: 900;
}

h2 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

p {
  color: var(--text-secondary);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

ul {
  list-style: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-cobalt) 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37, 99, 235, 0.6), 0 0 12px var(--accent-cyan);
}

.btn-secondary {
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.btn-wa {
  background: rgba(37, 211, 102, 0.1);
  border: 1px solid rgba(37, 211, 102, 0.3);
  color: #25d366;
  gap: 0.5rem;
}

.btn-wa:hover {
  background: rgba(37, 211, 102, 0.25);
  border-color: #25d366;
  box-shadow: 0 0 15px rgba(37, 211, 102, 0.3);
  transform: translateY(-2px);
}

.btn-text {
  font-family: var(--font-title);
  font-weight: 600;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.btn-text:hover {
  color: #fff;
  transform: translateX(4px);
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.25rem 1rem;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 50px;
}

.brand-logo {
  height: 42px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-link {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  text-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.contact-btn-nav {
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  padding: 0.5rem 1.25rem;
  border-radius: 20px;
  color: var(--accent-cyan);
}

.contact-btn-nav:hover {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.mobile-menu-toggle .bar {
  width: 25px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-smooth);
}

/* Hero Section */
.hero-section {
  padding: 10rem 1rem 6rem;
  position: relative;
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.badge {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.4rem 1rem;
  color: var(--accent-cyan);
  border-radius: 30px;
  display: inline-block;
  margin-bottom: 1.5rem;
  border-color: rgba(0, 240, 255, 0.15);
}

.hero-title {
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 40%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
  perspective: 1000px;
}

.hero-card {
  padding: 2rem;
  text-align: center;
  position: relative;
  transition: var(--transition-smooth);
  transform: rotateY(-5deg) rotateX(5deg);
  width: 100%;
  max-width: 340px;
}

.hero-card:hover {
  transform: rotateY(0deg) rotateX(0deg) scale(1.03);
  border-color: var(--glass-border-hover);
  box-shadow: 0 15px 45px 0 rgba(0, 240, 255, 0.15);
}

.card-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(0, 240, 255, 0.1), transparent 60%);
  pointer-events: none;
  border-radius: inherit;
}

.hero-product-img {
  width: 80%;
  height: auto;
  max-height: 220px;
  object-fit: contain;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.5));
}

.hero-card-info h3 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.hero-card-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.card-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid rgba(0, 240, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
}

/* Slogan Banner */
.slogan-banner {
  max-width: var(--max-width);
  margin: 0 auto 6rem;
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.slogan-tagline {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.25em;
  margin-bottom: 0.5rem;
}

.slogan-text {
  font-size: 3rem;
  font-weight: 900;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: linear-gradient(90deg, #fff 0%, var(--accent-cyan) 50%, #fff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 10s linear infinite;
  background-size: 200% auto;
}

@keyframes shine {
  to { background-position: 200% center; }
}

.slogan-banner .divider {
  width: 80px;
  height: 2px;
  background-color: var(--accent-cyan);
  margin: 1.5rem auto;
}

.slogan-desc {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.1rem;
  font-style: italic;
}

/* Audience Section */
.audience-section {
  max-width: var(--max-width);
  margin: 0 auto 6rem;
  padding: 0 1rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  color: var(--accent-cyan);
  font-family: var(--font-title);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.5rem;
}

.tabs-container {
  padding: 2.5rem;
}

.tab-buttons {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  padding: 0.4rem;
  border-radius: 12px;
  margin-bottom: 3rem;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid var(--glass-border);
}

.tab-btn {
  background: none;
  border: none;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-secondary);
  padding: 0.75rem 2rem;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tab-btn.active {
  background: var(--accent-blue);
  color: #fff;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 4rem;
  align-items: center;
}

.tab-text h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: #fff;
}

.tab-intro {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.benefit-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.benefit-title {
  display: block;
  font-family: var(--font-title);
  font-size: 1.05rem;
  color: var(--accent-cyan);
  margin-bottom: 0.25rem;
}

.tab-visual-box .image-wrapper {
  padding: 0.5rem;
  border-radius: 20px;
  overflow: hidden;
  height: 380px;
}

.tab-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
  filter: brightness(0.85);
  transition: var(--transition-smooth);
}

.tab-visual-box:hover .tab-image {
  transform: scale(1.05);
  filter: brightness(1);
}

/* Products Section */
.products-section {
  max-width: var(--max-width);
  margin: 0 auto 6rem;
  padding: 0 1rem;
}

.category-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  padding: 0.75rem;
  border-radius: 50px;
}

.cat-filter-btn {
  padding: 0.6rem 1.4rem;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.cat-filter-btn:hover {
  border-color: var(--accent-cyan);
  color: #fff;
  background: rgba(0, 240, 255, 0.1);
}

.cat-filter-btn.active {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.35);
}

.section-subtitle {
  max-width: 600px;
  margin: 0 auto;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--glass-border-hover);
  box-shadow: 0 12px 40px rgba(0, 240, 255, 0.1);
}

.product-img-container {
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.15);
  padding: 2rem;
  border-bottom: 1px solid var(--glass-border);
}

.product-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.6));
  transition: var(--transition-smooth);
}

.product-card:hover .product-img {
  transform: scale(1.08);
}

.product-details {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.product-details h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: #fff;
}

.product-desc {
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.product-specs {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1rem;
  margin-bottom: 1rem;
}

.product-specs li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
}

.product-specs li strong {
  color: var(--text-primary);
}

.catalog-cta {
  text-align: center;
  padding: 3rem;
  border-radius: 20px;
  background: radial-gradient(circle at center, rgba(37, 99, 235, 0.05), transparent 70%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.catalog-cta p {
  font-size: 1.2rem;
  font-weight: 600;
}

/* Values & Technology Section */
.values-section {
  max-width: var(--max-width);
  margin: 0 auto 6rem;
  padding: 0 1rem;
}

.values-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.values-info p {
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.value-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.value-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.value-text h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: #fff;
}

.value-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.values-visual {
  position: relative;
  height: 480px;
}

.visual-stack {
  position: relative;
  width: 100%;
  height: 100%;
}

.visual-img-card {
  position: absolute;
  padding: 0.5rem;
  border-radius: 20px;
}

.visual-img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
}

.img-1 {
  width: 70%;
  height: 70%;
  top: 0;
  left: 0;
  z-index: 2;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.img-2 {
  width: 65%;
  height: 65%;
  bottom: 0;
  right: 0;
  z-index: 1;
  border-color: rgba(255, 255, 255, 0.05);
}

/* Contact Section */
.contact-section {
  max-width: var(--max-width);
  margin: 0 auto 6rem;
  padding: 0 1rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
}

.contact-info-panel {
  padding: 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.contact-info-panel h2 {
  font-size: 2.25rem;
  color: #fff;
  margin-bottom: 1.5rem;
}

.contact-info-panel p {
  font-size: 1.05rem;
  margin-bottom: 3rem;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.channel-item {
  display: flex;
  gap: 1.25rem;
}

.channel-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.channel-details span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.channel-link {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.channel-link:hover {
  color: var(--accent-cyan);
}

.whatsapp-direct h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: #fff;
}

.wa-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-form-panel {
  padding: 3.5rem;
}

.contact-form-panel h3 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
  color: #fff;
}

.contact-form-panel p {
  margin-bottom: 2.5rem;
  font-size: 0.95rem;
}

.quote-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

label {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

input, select, textarea {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
  background: rgba(0, 0, 0, 0.4);
}

select option {
  background-color: var(--bg-secondary);
  color: #fff;
}

textarea {
  resize: vertical;
}

.btn-block {
  width: 100%;
}

.form-success {
  display: none;
  padding: 3rem 2rem;
  text-align: center;
  border-color: var(--accent-cyan);
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.form-success.active {
  display: flex;
  animation: fadeIn 0.5s ease;
}

.form-success h4 {
  font-size: 1.35rem;
  color: #fff;
}

/* Footer */
.site-footer {
  background: #04060b;
  border-top: 1px solid var(--glass-border);
  padding: 5rem 1rem 2rem;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 0.6fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-logo {
  height: 60px;
  margin-bottom: 1rem;
}

.footer-tagline {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.footer-slogan {
  font-family: var(--font-title);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-nav h4, .footer-contact h4 {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.footer-nav h4::after, .footer-contact h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--accent-cyan);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-nav a {
  color: var(--text-secondary);
}

.footer-nav a:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

.footer-contact p {
  margin-bottom: 1rem;
}

.footer-contact a {
  color: var(--accent-cyan);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Responsive Media Queries (Mobile First approach logic adapted)
   ========================================================================== */

@media (max-width: 1024px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.85rem; }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .products-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .values-container {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  
  .values-visual {
    height: 380px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: span 2;
    margin-bottom: 1rem;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 5.5rem;
    left: 1rem;
    right: 1rem;
    background: rgba(11, 17, 32, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: 99;
    pointer-events: none;
    box-shadow: 0 15px 40px rgba(0,0,0,0.6);
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .nav-list {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }
  
  .contact-btn-nav {
    display: inline-block;
    width: 100%;
  }

  .mobile-menu-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .mobile-menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .slogan-text {
    font-size: 2rem;
  }
  
  .tab-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .tab-visual-box .image-wrapper {
    height: 280px;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
}