/* Center all main content in hero section on all screen sizes */
.hero {
    background: none;
    color: inherit;
    text-align: center;
    padding: 56px 0 32px 0;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.btn {
    display: inline-block;
    background: #162447;
    color: #fff !important;
    border-radius: 10px;
    padding: 16px 32px;
    .subject-card {
        background: #162447 !important;
    }
    font-size: 18px;
    padding: 10px;
    transition: color 0.3s;
}
.bottom-nav a:hover {
    color: #ffd60a;
}
body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    text-align: center;
    margin: 0;
    padding: 0;
}

.dark body {
    background: #10182b !important;
    color: #e0e6ed !important;
}

header {
    background: #343a40;
    color: white;
    padding: 15px;
    font-size: 24px;
}

.container {
    padding: 20px;
}

.buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}