/* === General Reset === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html, body {
  height: 100%;
  background-color: #f4f4f4;
  color: #333;
}

/* === Header === */
header {
  background: #ffffff;
  padding: 20px 0;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  text-align: center;
}

header .logo {
  font-size: 1.8em;
  font-weight: 600;
  color: #2c3e50;
}

/* === Navigation === */
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 10px;
}

nav ul li a {
  color: #2c3e50;
  text-decoration: none;
  padding: 10px 18px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  transition: background 0.2s ease-in-out;
}

nav ul li a:hover {
  background-color: #e0e0e0;
}

/* === Hero Section === */
.hero {
  background-color: #ecf0f1;
  padding: 80px 0;
  text-align: center;
}

.hero .container {
  max-width: 700px;
  margin: 0 auto;
}

.hero h2 {
  font-size: 2.5em;
  color: #2c3e50;
  margin-bottom: 15px;
}

.hero p {
  font-size: 1.2em;
  color: #555;
  margin-bottom: 25px;
}

.hero .btn.primary {
  display: inline-block;
  padding: 12px 24px;
  background: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: background 0.2s;
}

.hero .btn.primary:hover {
  background: #2980b9;
}

/* === Features Section === */
.features {
  padding: 50px 0;
  background: #ffffff;
  text-align: center;
}

.features h3 {
  font-size: 2em;
  margin-bottom: 40px;
  color: #2c3e50;
}

.features .cards {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: center;
}

.features .card {
  background: #f9f9f9;
  border-radius: 10px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
  width: 260px;
  padding: 20px;
  text-align: left;
}

.features .card img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 15px;
}

.features .card h4 {
  font-size: 1.5em;
  margin-bottom: 10px;
  color: #333;
}

.features .card a {
  display: inline-block;
  margin-top: 5px;
  font-weight: 600;
  color: #3498db;
  text-decoration: none;
}

.features .card a:hover {
  text-decoration: underline;
}

.features .card p {
  font-size: 1em;
  color: #666;
  margin-top: 10px;
}

/* === Footer === */
footer {
  background: #ffffff;
  color: #999;
  padding: 20px 0;
  text-align: center;
  border-top: 1px solid #e0e0e0;
}

footer p {
  font-size: 0.9em;
}