/* Main Unified Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors */
  --primary-bg: #0a0a0f;
  --secondary-bg: #131319;
  --accent-color: #6366f1;
  --accent-hover: #4f46e5;
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --border-color: #27272a;
  --border-hover: #3f3f46;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  /* Glass effect */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 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;
}

/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Page background: non-repeating radial gradient (center in -> outer out) */
html {
  height: 100%;
  background: radial-gradient(circle at 50% 30%, #2a3a4a 0%, #1B2735 15%, #111827 45%, #090A0F 100%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
}

body {
  font-family: var(--font-family);
  background: transparent; /* let html show through */
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
  margin: 0;
}

/* Parallax starfield layers: keep them small (1/2/3px) and use box-shadow generated by JS to place stars */
#stars,
#stars2,
#stars3 {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 0;
  transform: translateZ(0);
}

#stars {
  width: 1px;
  height: 1px;
  background: transparent;
  opacity: 0.85;
  animation: animStar 50s linear infinite;
}

#stars2 {
  width: 2px;
  height: 2px;
  background: transparent;
  opacity: 0.5;
  animation: animStar 100s linear infinite;
}

#stars3 {
  width: 3px;
  height: 3px;
  background: transparent;
  opacity: 0.25;
  animation: animStar 150s linear infinite;
}

@keyframes animStar {
  from { transform: translateY(0); }
  to { transform: translateY(-2000px); }
}

/* Shooting stars effect (from provided example) */
.shooting-stars {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  background-size: cover;
}

.shooting-stars span{
  position: absolute;
  top:50%;
  left:50%;
  width: 4px;
  height: 4px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(255,255,255,0.08), 0 0 0 8px rgba(255,255,255,0.04), 0 0 20px rgba(255,255,255,0.06);
  animation: shooting 3s linear infinite;
}
.shooting-stars span::before{
  content:'';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 300px;
  height: 1px;
  background: linear-gradient(90deg,#fff,transparent);
}

@keyframes shooting {
  0% { transform: rotate(315deg) translateX(0); opacity: 1; }
  70% { opacity: 1; }
  100% { transform: rotate(315deg) translateX(-1000px); opacity: 0; }
}

/* Place different shooting stars around the viewport with varied timing */
.shooting-stars span:nth-child(1){ top: 0; right: 0; left: auto; animation-delay: 0s; animation-duration: 1s; }
.shooting-stars span:nth-child(2){ top: 0; right: 80px; left: auto; animation-delay: 0.2s; animation-duration: 3s; }
.shooting-stars span:nth-child(3){ top: 80px; right: 0px; left: auto; animation-delay: 0.4s; animation-duration: 2s; }
.shooting-stars span:nth-child(4){ top: 0; right: 180px; left: auto; animation-delay: 0.6s; animation-duration: 1.5s; }
.shooting-stars span:nth-child(5){ top: 0; right: 400px; left: auto; animation-delay: 0.8s; animation-duration: 2.5s; }
.shooting-stars span:nth-child(6){ top: 0; right: 600px; left: auto; animation-delay: 1s; animation-duration: 3s; }
.shooting-stars span:nth-child(7){ top: 300px; right: 0px; left: auto; animation-delay: 1.2s; animation-duration: 1.75s; }
.shooting-stars span:nth-child(8){ top: 0px; right: 700px; left: auto; animation-delay: 1.4s; animation-duration: 1.25s; }
.shooting-stars span:nth-child(9){ top: 0px; right: 1000px; left: auto; animation-delay: 0.75s; animation-duration: 2.25s; }
.shooting-stars span:nth-child(10){ top: 0px; right: 450px; left: auto; animation-delay: 2.75s; animation-duration: 2.75s; }

/* Ensure main content sits above the star layers */
main, .container, .section, .nav, .card, .glass, .glass-subtle {
  position: relative;
  z-index: 1;
}

/* Advanced Custom Cursor */
#cursorPt {
  position: fixed;
  width: 7px;
  height: 7px;
  pointer-events: none;
  z-index: 9999;
  background: #ffffff;
  border-radius: 50%;
  visibility: hidden;
}

#cursor {
  --color: #ffffff;
  position: fixed;
  width: 30px;
  height: 30px;
  pointer-events: none;
  z-index: 9999;
  visibility: hidden;

  background-image: 
    linear-gradient(to right, var(--color) 10px, transparent 0),
    linear-gradient(to bottom, var(--color) 10px, transparent 0),
    linear-gradient(to left, var(--color) 10px, transparent 0),
    linear-gradient(to bottom, var(--color) 10px, transparent 0),
    linear-gradient(to right, var(--color) 10px, transparent 0),
    linear-gradient(to top, var(--color) 10px, transparent 0),
    linear-gradient(to left, var(--color) 10px, transparent 0),
    linear-gradient(to top, var(--color) 10px, transparent 0);

  background-repeat: no-repeat;
  background-position: top left, top left, top right, top right, bottom left,
    bottom left, bottom right, bottom right;
  background-size: 20px 2px, 2px 20px, 20px 2px, 2px 20px, 20px 2px, 2px 20px,
    20px 2px, 2px 20px;
}
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow);
}

.glass-subtle {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
}

/* Button system */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-glass {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-pulse {
  animation: pulse-effect 2s infinite;
}

@keyframes pulse-effect {
  0% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
  }
}

/* Form elements */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.form-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.checkbox-input {
  width: auto;
  margin: 0;
}

/* Card system */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--glass-shadow);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.card-header {
  margin-bottom: var(--space-lg);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card-description {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* Navigation */
.nav {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 1000;
}

.nav-toggle {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
}

.nav-toggle::before,
.nav-toggle::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
}

.nav-toggle::before {
  transform: translate(-50%, -50%) translateY(-4px);
}

.nav-toggle::after {
  transform: translate(-50%, -50%) translateY(4px);
}

.nav-toggle.active::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.nav-toggle.active::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.nav-menu {
  position: absolute;
  top: 60px;
  right: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  min-width: 200px;
  transform: translateY(-10px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  box-shadow: var(--glass-shadow);
}

.nav-menu.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.nav-link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-color);
}

/* Layout helpers */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-3xl) 0;
}

.text-center {
  text-align: center;
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.gap-4 {
  gap: var(--space-lg);
}

.gap-6 {
  gap: var(--space-xl);
}

.grid {
  display: grid;
}

.grid-cols-1 {
  grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Typography */
.heading-1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.heading-2 {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-md);
}

.heading-3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent-color), #8b5cf6, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Glass morphism components */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .heading-1 {
    font-size: var(--font-size-3xl);
  }
  
  .heading-2 {
    font-size: var(--font-size-2xl);
  }
  
  .grid-cols-2,
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
  
  .nav {
    top: var(--space-md);
    right: var(--space-md);
  }
}

/* Utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}