:root {
  /* Color Palette */
  --bg-dark: hsl(212, 70%, 14%); /* Duboka, bogata okeanska modra */
  --bg-card: hsla(212, 50%, 20%, 0.6);
  --text-main: hsl(0, 0%, 98%);
  --text-muted: hsl(212, 20%, 80%);
  
  --primary: hsl(190, 90%, 50%);
  --primary-glow: hsla(190, 90%, 50%, 0.4);
  --secondary: hsl(230, 80%, 65%);
  
  /* Glassmorphism */
  --glass-border: hsla(0, 0%, 100%, 0.12);
  --glass-bg: hsla(212, 55%, 18%, 0.5);
  --glass-shadow: 0 8px 32px 0 hsla(0, 0%, 0%, 0.4);
  
  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-dark);
  background-image: radial-gradient(circle at top, hsl(212, 60%, 18%) 0%, hsl(212, 80%, 8%) 100%);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, .logo-text {
  font-family: var(--font-display);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  color: var(--primary);
  font-size: 1.5rem;
  text-shadow: 0 0 10px var(--primary-glow);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 1px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 2rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transform: scale(1.05);
  animation: subtleZoom 20s infinite alternate ease-in-out;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, 
    hsla(220, 40%, 4%, 0.3) 0%, 
    hsla(220, 40%, 4%, 0.8) 70%, 
    var(--bg-dark) 100%);
}

.hero-content {
  text-align: center;
  max-width: 800px;
  z-index: 1;
}

.badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: hsla(190, 90%, 50%, 0.1);
  border: 1px solid var(--primary-glow);
  border-radius: 50px;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 800px;
  margin-inline: auto;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-family: var(--font-display);
  border-radius: 50px;
  box-shadow: 0 0 20px var(--primary-glow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px var(--primary-glow);
}

/* Sections */
.section {
  padding: 6rem 2rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 600px;
  margin-inline: auto;
}

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

.section-header p {
  color: var(--text-muted);
}

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

.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-glow);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: 2rem 2rem 6rem;
}

.cta-card {
  background: linear-gradient(135deg, hsla(190, 90%, 50%, 0.1), hsla(230, 80%, 65%, 0.05));
  border: 1px solid var(--primary-glow);
  padding: 4rem 2rem;
}

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

.cta-card p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Footer */
footer {
  border-top: 1px solid var(--glass-border);
  padding: 2rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

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

/* Animations */
@keyframes subtleZoom {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.15); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
}