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

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #000;
    color: #ddd;
    font-size: 15px;
    line-height: 1.7;
    min-height: 100vh;
}

canvas { display: block; vertical-align: bottom; }

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0; left: 0;
    background-color: #000;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 50%;
    z-index: 0;
}

.content {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 auto;
    padding: 48px 32px 80px;
    color: #ddd;
}

.content h1 {
    font-size: 28px;
    font-weight: 900;
    color: #fff;
    letter-spacing: 2px;
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 18px;
    border-bottom: 2px solid rgba(185,28,28,0.4);
}

.content h2,
.content h4 {
    font-size: 13px;
    font-weight: bold;
    color: #b91c1c;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin: 32px 0 10px;
    padding-left: 12px;
    border-left: 3px solid #b91c1c;
}

.content p {
    color: #aaa;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 8px;
}

.content p strong {
    color: #eee;
    font-size: 14px;
}

.content a {
    color: #fca5a5;
    text-decoration: none;
    border-bottom: 1px solid rgba(252,165,165,0.3);
    transition: color .2s, border-color .2s;
}
.content a:hover {
    color: #b91c1c;
    border-bottom-color: #b91c1c;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
    color: #555;
    text-decoration: none;
    font-size: 13px;
    border: none !important;
    transition: color .2s;
}
.back-link:hover { color: #eee; }

@media (max-width: 600px) {
    .content { padding: 28px 18px 60px; }
    .content h1 { font-size: 22px; }
}