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

body {
  font-family: "Segoe UI", Arial, sans-serif;
  background: #fdfdfd;
  color: #222;
  line-height: 1.6;
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.site-header {
  background: #3776ab; /* Python mavisi */
  color: #fff;
}

.site-header .container {
  display: flex;
  justify-content: space-between; /* logo sola, nav sağa */
  align-items: center;            /* dikey ortalama */
  padding: 16px 0;
}

.logo a {
  color: #fff;
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
}

.main-nav a {
  color: #fff;
  margin-left: 20px;
  text-decoration: none;
  font-weight: 500;
}

.main-nav a:hover,
.main-nav .active {
  text-decoration: underline;
}

/* Hero */
.hero {
  background: #eceff1;
  padding: 60px 20px;
  text-align: center;
}

.hero h2 {
  font-size: 36px;
  margin-bottom: 16px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 24px;
}

.hero-buttons .btn {
  display: inline-block;
  padding: 12px 20px;
  margin: 8px;
  border-radius: 6px;
  font-weight: bold;
  text-decoration: none;
}

.btn.primary {
  background: #3776ab;
  color: #fff;
}

.btn.secondary {
  background: #fff;
  border: 2px solid #3776ab;
  color: #3776ab;
}

.btn.primary:hover {
  background: #28527a;
}

.btn.secondary:hover {
  background: #f0f0f0;
}

/* Highlights */
.highlights {
  padding: 40px 20px;
}

.grid {
  display: flex;
  gap: 20px;
}

.card {
  flex: 1;
  background: #fafafa;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}

.card h3 {
  margin-bottom: 12px;
  color: #3776ab;
}

/* Footer */
.site-footer {
  background: #f5f5f5;
  padding: 20px;
  text-align: center;
  font-size: 14px;
  color: #555;
}

.site-footer a {
  color: #3776ab;
}