/* Base Styles and Variables */
:root {
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --accent: #38bdf8;
  --dark: #0f172a;
  --card-bg: #1e293b;
  --light: #f8fafc;
  --gray: #94a3b8;
  --border-light: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  --blur: blur(10px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--dark);
  color: var(--light);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Container */
.container {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

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

/* Buttons */
.btn-primary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--light);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--light);
  transform: translateY(-2px);
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2rem;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

/* Sections */
.section {
  padding: 100px 0;
}

.section-title {
  font-size: clamp(2rem, 5vw, 2.5rem);
  text-align: center;
  margin-bottom: 3rem;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Utilities */
.text-primary { color: var(--primary); }
.text-light { color: var(--light); }
.text-gray { color: var(--gray); }

.bg-primary { background: var(--primary); }
.bg-dark { background: var(--dark); }
.bg-card { background: var(--card-bg); }

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

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

/* Media Queries */
@media (max-width: 1024px) {
  .container {
    padding: 0 1.5rem;
  }

  .section {
    padding: 80px 0;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  .section {
    padding: 60px 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
}