/* AI-Native Glass - Vanilla CSS */
:root {
  --primary: #2563EB;
  --secondary: #3B82F6;
  --cta: #F97316;
  --text: #FFFFFF;
  --text-muted: rgba(255, 255, 255, 0.7);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  background: url('assets/background.png') no-repeat center center fixed;
  background-size: cover;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

/* Typography */
h1,
h2,
h3 {
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
}

h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

p {
  color: var(--text-muted);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  font-weight: 300;
}

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

/* Glass Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: 1000;
  transition: background 0.3s;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: white;
}

.btn-primary:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.btn-cta {
  background: linear-gradient(135deg, var(--cta) 0%, #EA580C 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(249, 115, 22, 0.4);
}

.btn-cta:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 25px rgba(249, 115, 22, 0.6);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 4rem;
  position: relative;
}

/* Glass Card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 2rem;
  padding: 4rem;
  box-shadow: var(--glass-shadow);
  max-width: 900px;
  width: 100%;
  text-align: center;
  animation: fadeIn 1s ease-out;
}

.hero-content {
  position: relative;
  z-index: 10;
}

.cta-group {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

/* Typography Gradient */
.gradient-text {
  background: linear-gradient(135deg, #60A5FA 0%, #A78BFA 50%, #F472B6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Typing Effect Cursor */
.cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background-color: var(--cta);
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
  margin-left: 4px;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  .glass-card {
    padding: 2rem;
    margin: 0 1rem;
  }

  .cta-group {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}