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

body {
    background-color: #f4f7f6;
    color: #333;
    line-height: 1.6;
}

/* Header & Navigation */
header {
    background-color: #1a252f;
    padding: 20px 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

header .logo {
    color: #fff;
    font-size: 24px;
    font-weight: bold;
}

header nav a {
    color: #cbd5e1;
    text-decoration: none;
    margin-left: 20px;
    transition: color 0.3s;
}

header nav a:hover {
    color: #3498db;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: #fff;
    text-align: center;
    padding: 100px 20px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero .btn {
    background-color: #e74c3c;
    color: #fff;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.hero .btn:hover {
    background-color: #c0392b;
}

/* Features Section */
.features {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 80px 10%;
    flex-wrap: wrap;
}

.card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    flex: 1;
    min-width: 250px;
    text-align: center;
}

.card h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

/* Footer */
footer {
    background-color: #1a252f;
    color: #7f8c8d;
    text-align: center;
    padding: 20px;
    font-size: 14px;
}