:root {
  --base-bg: #0E1624;
  --corp-blue: #1A5493;
  --mid-blue: #234F84;
  --light-blue: #3E7CC4;
  --card-bg: #151F31;
  --hover-bg: #1D2940;
  --border-color: #28354E;
  
  --text-primary: #F2F4F8;
  --text-secondary: #B7C2D4;
  --text-soft: #8A96A8;
  
  --color-success: #22C55E;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  
  --hero-gradient: linear-gradient(180deg, #10203B 0%, #0E1624 50%, #0B111C 100%);
  
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 20px;
}

body {
  font-family: var(--font-family);
  background-color: var(--base-bg);
  color: var(--text-primary);
  line-height: 1.6;
}

a {
  color: var(--corp-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--light-blue);
}

h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(14, 22, 36, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
  height: 80px;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo img {
  height: 55px;
  display: block;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 1rem;
}

.nav-links a:hover {
  color: var(--light-blue);
}

/* Lang Selector */
.lang-selector {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  border-left: 1px solid var(--border-color);
  padding-left: 1.5rem;
  margin-left: 0.5rem;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-soft);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.lang-btn:hover {
  color: var(--text-primary);
}

.lang-btn.active {
  color: var(--light-blue);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  background: var(--hero-gradient);
  padding: 180px 0 100px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  max-width: 900px;
  margin-inline: auto;
}

.hero .subtitle {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 3rem;
  color: var(--text-secondary);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--corp-blue);
  color: #fff;
  border: 1px solid var(--mid-blue);
}

.btn-primary:hover {
  background-color: var(--mid-blue);
  color: #fff;
}

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

.btn-outline:hover {
  background-color: var(--hover-bg);
  border-color: var(--mid-blue);
  color: var(--text-primary);
}

/* Sections General */
section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.section-title h2 {
  color: var(--light-blue);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.section-title h3 {
  font-size: 2.5rem;
  color: var(--text-primary);
}

/* Story */
.story-content {
  max-width: 800px;
  margin: 0 auto;
}

.story-content p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

/* Focus Areas (Grid) */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.card:hover {
  background-color: var(--hover-bg);
  border-color: var(--mid-blue);
  transform: translateY(-5px);
}

.card-icon {
  font-size: 2rem;
  color: var(--light-blue);
  margin-bottom: 1.5rem;
}

/* Product Section */
.product-showcase {
  background-color: var(--card-bg);
  border: 1px solid var(--mid-blue);
  border-radius: 12px;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.product-showcase h3 {
  color: var(--light-blue);
  font-size: 2rem;
}

.product-features {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.product-features li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: bold;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
}

.contact-info p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.info-item {
  margin-bottom: 1.5rem;
}

.info-item h4 {
  color: var(--light-blue);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-size: 1rem;
}

.form-control {
  width: 100%;
  background-color: var(--base-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.875rem 1rem;
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--light-blue);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

#form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 6px;
  display: none;
}

#form-message.success {
  display: block;
  background-color: rgba(34, 197, 94, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

#form-message.error {
  display: block;
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* Footer */
.footer {
  background-color: var(--base-bg);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo img {
  height: 70px;
  margin-bottom: 1rem;
}

.footer-desc {
  color: var(--text-soft);
  font-size: 1rem;
  max-width: 300px;
}

.footer h4 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 1rem;
}

.footer-links a:hover {
  color: var(--light-blue);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-soft);
  font-size: 1rem;
}

/* Responsive */
@media (max-width: 992px) {
  .hero h1 {
    font-size: 2.8rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--base-bg);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
  }
  
  .nav-links.active {
    display: flex;
  }

  .lang-selector {
    border-left: none;
    padding-left: 0;
    margin-left: 0;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    width: 100%;
    justify-content: center;
  }

  .mobile-toggle {
    display: block;
  }

  .hero {
    padding: 140px 0 80px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}