@import url("https://fonts.googleapis.com/css2?family=Bitcount+Single:wght@100;200;300;400;500;600;700;800;900&display=swap");

html {
  scroll-behavior: smooth;
}

:root {
  /* Modern Color Palette - Dark Theme */
  --primary-color: #00d4ff;
  --primary-light: #4de3ff;
  --primary-dark: #0099cc;
  --primary-gradient: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
  --primary-gradient-hover: linear-gradient(135deg, #0099cc 0%, #0066cc 100%);
  
  --secondary-color: #ff6b6b;
  --secondary-light: #ff8e8e;
  --secondary-dark: #e55555;
  --secondary-gradient: linear-gradient(135deg, #ff6b6b 0%, #ff8e8e 100%);
  
  --accent-color: #4ecdc4;
  --accent-light: #6eddd6;
  --accent-dark: #3db8b0;
  
  /* Neutral Colors - Dark Theme */
  --gray-50: #0a0a0a;
  --gray-100: #1a1a1a;
  --gray-200: #2a2a2a;
  --gray-300: #3a3a3a;
  --gray-400: #4a4a4a;
  --gray-500: #5a5a5a;
  --gray-600: #6a6a6a;
  --gray-700: #7a7a7a;
  --gray-800: #8a8a8a;
  --gray-900: #9a9a9a;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-tertiary: #b0b0b0;
  --text-inverted: #0a0a0a;
  --text-accent: #00d4ff;
  
  /* Background Colors */
  --background-primary: #0a0a0a;
  --background-secondary: #1a1a1a;
  --background-tertiary: #2a2a2a;
  --background-dark: #000000;
  --background-gradient: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  --background-card: rgba(255, 255, 255, 0.05);
  
  /* Border & Shadow */
  --border-color: rgba(255, 255, 255, 0.1);
  --border-radius-sm: 12px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --border-radius-xl: 32px;
  --border-radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px -8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px -16px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 32px 128px -32px rgba(0, 0, 0, 0.6);
  --shadow-2xl: 0 64px 256px -64px rgba(0, 0, 0, 0.7);
  
  /* Typography */
  --font-primary: "Bitcount Single", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-secondary: "Bitcount Single", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-accent: "Bitcount Single", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  width: 100%;
  background: var(--background-primary);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 107, 107, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(78, 205, 196, 0.05) 0%, transparent 50%);
}

body:has(.mobile-menu-active) {
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
  line-height: 1.2;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  transition: var(--transition-normal);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

section {
  overflow-x: hidden;
}

/* Typography Classes */
.title {
  font-family: var(--font-secondary);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.descr {
  font-family: var(--font-primary);
  font-weight: 400;
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.section-name {
  font-family: var(--font-accent);
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
  color: var(--primary-color);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Layout Classes */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-flex {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xl);
}

/* Button Classes */
.primary-btn {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  text-align: center;
  color: var(--text-inverted);
  background: var(--primary-gradient);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--border-radius-full);
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.primary-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: var(--transition-slow);
}

.primary-btn:hover::before {
  left: 100%;
}

.primary-btn:hover {
  background: var(--primary-gradient-hover);
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.primary-btn:active {
  transform: translateY(-1px) scale(1.01);
}

.secondary-btn {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  text-align: center;
  color: var(--primary-color);
  background: transparent;
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--border-radius-full);
  border: 2px solid var(--primary-color);
  cursor: pointer;
  transition: var(--transition-normal);
  backdrop-filter: blur(20px);
}

.secondary-btn:hover {
  background: var(--primary-color);
  color: var(--text-inverted);
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.secondary-btn:active {
  transform: translateY(-1px) scale(1.01);
}

/* Utility Classes */
.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient {
  background: var(--background-gradient);
}

.card {
  background: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-lg);
  transition: var(--transition-normal);
  backdrop-filter: blur(20px);
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  color: var(--text-primary);
  transition: var(--transition-normal);
  font-weight: 700;
  font-size: 1.75rem;
  font-family: var(--font-secondary);
}

.logo:hover {
  color: var(--primary-color);
  transform: scale(1.05);
}

.logo img {
  width: 60px;
  height: 40px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.3));
}

.logo-img {
  border-radius: 50%;
}

/* Link Styles */
.link {
  display: inline-flex;
  gap: var(--space-xs);
  align-items: center;
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--primary-color);
  text-decoration: none;
  position: relative;
  transition: var(--transition-normal);
}

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

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

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

.link svg {
  width: 20px;
  height: 20px;
  transition: var(--transition-normal);
  transform: translateX(0);
}

.link:hover svg {
  transform: translateX(6px);
}

/* Responsive Design */
@media screen and (max-width: 1024px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .container-flex {
    flex-direction: column;
    text-align: center;
  }
  
  .title {
    font-size: clamp(2rem, 5vw, 3.5rem);
  }
  
  .subtitle {
    font-size: clamp(1.25rem, 3vw, 2rem);
  }
  
  .descr {
    font-size: 1.125rem;
  }
}

@media screen and (max-width: 768px) {
  .container {
    padding: 0 var(--space-sm);
  }
  
  .primary-btn,
  .secondary-btn {
    font-size: 0.875rem;
    padding: var(--space-sm) var(--space-lg);
  }
  
  .space-xs { margin: var(--space-xs); }
  .space-sm { margin: var(--space-sm); }
  .space-md { margin: var(--space-md); }
  .space-lg { margin: var(--space-lg); }
  .space-xl { margin: var(--space-xl); }
}

/* Animation Classes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fade-in-left {
  animation: fadeInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fade-in-right {
  animation: fadeInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Glassmorphism Effect */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(30px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
}

/* Neon Effects */
.neon-glow {
  box-shadow: 
    0 0 20px rgba(0, 212, 255, 0.3),
    0 0 40px rgba(0, 212, 255, 0.2),
    0 0 60px rgba(0, 212, 255, 0.1);
}

.neon-text {
  text-shadow: 
    0 0 10px currentColor,
    0 0 20px currentColor,
    0 0 30px currentColor;
}