/* ========== Base Styles (Used in all pages) ========== */

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

html,
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background-color: #1b2838;
  color: #c7d5e0;
}

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

a:hover {
  text-decoration: underline;
}

img {
  display: block;
  max-width: 100%;
}

input,
button,
textarea {
  font-family: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5 {
  color: #66c0f4;
  font-weight: 600;
}

/* Header */
.main-header {
  background-color: #171a21;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 30px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  z-index: 999;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #66c0f4;
}

.main-nav a {
  margin-left: 20px;
  color: white;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

.main-nav a:hover {
  color: #66c0f4;
}

/* Footer */
footer {
  margin-top: 60px;
  padding: 30px;
  background-color: #171a21;
  color: #a5c7dc;
  text-align: center;
  font-size: 0.9rem;
  border-top: 1px solid #2a475e;
}

footer a {
  color: #66c0f4;
  text-decoration: none;
  margin: 0 10px;
}

footer a:hover {
  text-decoration: underline;
}