/* TeDaCo Premium - Critical CSS */
/* Wird inline geladen für optimale Performance */

/* CSS Custom Properties */
:root {
  /* Colors */
  --primary: #38bdf8;
  --primary-dark: #0284c7;
  --secondary: #0f172a;
  --secondary-light: #1e293b;
  --accent: #00d4ff;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-900: #0f172a;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-base: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--white);
  background: var(--secondary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  text-align: center;
  max-width: 300px;
}

.loading-logo {
  margin-bottom: var(--space-8);
}

.tedaco-logo-animated {
  width: 200px;
  height: 60px;
  fill: var(--primary);
}

.loading-progress {
  width: 100%;
  height: 4px;
  background: rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-base);
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: var(--radius-base);
  width: 0%;
  animation: loading-progress 2s ease-in-out forwards;
}

.loading-text {
  color: var(--primary);
  font-size: var(--font-size-lg);
  font-weight: 500;
  opacity: 0;
  animation: fade-in 0.5s ease 1s forwards;
}

/* Video Intro */
.video-intro {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9998;
  background: var(--secondary);
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.video-intro.hidden {
  opacity: 0;
  visibility: hidden;
}

#intro-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.skip-intro-btn {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  background: rgba(0, 0, 0, 0.5);
  color: var(--white);
  border: 2px solid var(--primary);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.skip-intro-btn:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(56, 189, 248, 0.1);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo .logo {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  gap: var(--space-8);
}

.nav-link {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-base);
}

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

/* Mobile Navigation */
.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--white);
  transition: all var(--transition-base);
  border-radius: 2px;
}

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Animations */
@keyframes loading-progress {
  to {
    width: 100%;
  }
}

@keyframes fade-in {
  to {
    opacity: 1;
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 1.875rem;
    --font-size-5xl: 2.25rem;
    --space-6: 1rem;
  }
  
  .container {
    padding: 0 var(--space-4);
  }
  
  .nav-menu {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .skip-intro-btn {
    top: var(--space-4);
    right: var(--space-4);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
  }
}