/* ============================
   main.css — starter stylesheet
   ============================ */

/* CSS Variables */
:root {
  --color-primary: #0057ff;
  --color-dark: #111;
  --color-light: #f7f7f7;
  --max-width: 1200px;
}

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

/* Body Defaults */
body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-dark);
  background: var(--color-light);
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Headings */
h1, h2, h3, h4 {
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  transition: background .2s ease;
}

.btn:hover {
  background: #003fcc;
}

/* Utility Classes */
.hidden { display: none; }

/* Navigation (example) */
.navbar {
  background: #fff;
  padding: 15px 20px;
  border-bottom: 1px solid #eee;
}

.navbar a {
  color: var(--color-dark);
  margin-right: 20px;
  text-decoration: none;
}

.navbar a:hover {
  color: var(--color-primary);
}