/* Critical CSS - загружается инлайн для LCP оптимизации */
/* Размер < 5KB */

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

/* Base Typography */
html {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  color: #1f2937;
  background: #ffffff;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  width: 100%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  color: #111827;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Hero Gradient */
.hero-gradient {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

/* CTA Gradient */
.cta-gradient {
  background: linear-gradient(90deg, #2563eb 0%, #60a5fa 100%);
}

/* Button Base */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(90deg, #2563eb 0%, #60a5fa 100%);
  color: #ffffff;
  box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3);
}

/* Grid Base */
.grid {
  display: grid;
  gap: 1.5rem;
}

/* Flex Base */
.flex {
  display: flex;
}

/* Colors */
:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-400: #60a5fa;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-700: #374151;
  --gray-900: #111827;
  --yellow-50: #fefce8;
  --green-500: #10b981;
}