:root {
  --bg-color: #ffffff;
  --text-color: #212529;
  --primary-color: #0d6efd;
  --primary-color-rgb: 13, 110, 253;
  --card-bg: #ffffff;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --header-bg: rgba(255, 255, 255, 0.8);
  --header-text-color: #212529;
  --header-scrolled-bg: rgba(209, 207, 207, 0.5);
}

[data-theme="dark"] {
  --bg-color: #121212;
  --text-color: #f8f9fa;
  --primary-color: #6ea8fe;
  --primary-color-rgb: 110, 168, 254;
  --card-bg: #1e1e1e;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --header-bg: rgba(30, 30, 30, 0.8);
  --header-text-color: #f8f9fa;
  --header-scrolled-bg: rgba(99, 99, 99, 0.7);
}

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: all 0.3s ease;
  padding-top: 80px;
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(var(--primary-color-rgb), 0.1);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(var(--primary-color-rgb), 0.8);
}