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

body {
    background: #f4f6fb;
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2937;
    min-height: 100vh;
}

/* Back Button */

.back-button {
    position: fixed;
    top: 25px;
    left: 25px;

    text-decoration: none;
    color: #111827;

    background: white;
    padding: 12px 18px;

    border-radius: 12px;

    box-shadow: 0 6px 18px rgba(0,0,0,0.08);

    transition: 0.3s;
}

.back-button:hover {
    transform: translateY(-2px);
}

/* Layout */

.article-container {
    width: min(90%, 850px);
    margin: 60px auto;
}

/* Card */

.article-card {
    background: white;

    padding: 50px;

    border-radius: 24px;

    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
}

/* Date */

.article-date {
    text-align: center;

    color: #6b7280;

    font-size: 15px;

    margin-bottom: 12px;
}

/* Title */

.article-title {
    text-align: center;

    font-size: 42px;

    margin-bottom: 35px;

    color: #111827;
}

/* Content */

.article-content {
    font-size: 18px;

    line-height: 1.9;

    color: #374151;
}

.article-content p {
    margin-bottom: 25px;
}

/* Mobile */

@media (max-width: 768px) {

    .article-card {
        padding: 30px;
    }

    .article-title {
        font-size: 30px;
    }

    .article-content {
        font-size: 16px;
    }

    .back-button {
        top: 15px;
        left: 15px;
    }
}