body {
    margin: 0;
    padding: 0;
    font-family: "Inter", Arial, sans-serif;
    background: #f5f7fa;
    color: #2d3748;
    line-height: 1.7;
}

header {
    background: #4c6ef5;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 40px;
    font-weight: 700;
}

header p {
    margin-top: 10px;
    font-size: 18px;
    opacity: 0.95;
}

.navbar {
    background: white;
    padding: 15px 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    display: flex;
    justify-content: center;
    gap: 30px;
}

.navbar a {
    text-decoration: none;
    color: #2d3748;
    font-weight: 600;
}

.navbar a:hover {
    color: #4c6ef5;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
}

h2 {
    font-size: 28px;
    margin-top: 0;
}

h3 {
    font-size: 22px;
    margin-top: 30px;
}

.button {
    display: inline-block;
    padding: 14px 28px;
    background: #4c6ef5;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    transition: 0.2s;
}

.button:hover {
    background: #364fc7;
}

footer {
    text-align: center;
    padding: 30px;
    font-size: 14px;
    color: #a0aec0;
    margin-top: 40px;
}