/*
 * Classic Style.css - v1.0
 */

/* 1. CSS Variables */
:root {
  --primary-color: #1a73e8;
  --primary-hover: #1558b0;
  --text-main: #333333;
  --text-muted: #666666;
  --bg-body: #f9f9f9;
  --bg-card: #ffffff;
  --border-radius: 8px;
  --max-width: 1100px;
}

/* 2. Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 0.7;
  padding: 20px;
}

/* 3. Container & Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* 4. Typography */
h1, h2, h3 {
  margin-bottom: 15px;
  color: #111111;
}

p {
  margin-bottom: 20px;
  color: var(--text-muted);
}

/* 5. Buttons */
.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.2s ease;
  border: none;
  cursor: pointer;
}

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

/* 6. Cards */
.card {
  background-color: var(--bg-card);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  margin-bottom: 20px;
}

/* 7. Responsive Utilities */
@media (max-width: 768px) {
  body {
    padding: 10px;
  }
  
  .card {
    padding: 20px;
  }
}