/* Main red-black-gray theme */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #111;
    color: #f5f5f5;
}

a {
    color: #ffcccc;
}

a.btn,
.btn {
    display: inline-block;
    padding: 8px 16px;
    margin: 5px 0;
    border-radius: 4px;
    text-decoration: none;
    border: 1px solid #ccc;
}

.btn.primary {
    background-color: #b30000;
    color: #fff;
    border-color: #ff4d4d;
}

/* Header / Nav */
.main-header {
    background-color: #990000;
    color: #ffffff;
    text-align: center;
    padding: 20px 10px;
}

.main-header h1 {
    margin: 0 0 8px 0;
}

.nav-bar a {
    margin: 0 8px;
    text-decoration: underline;
}

/* Layout */
.content-area {
    padding: 20px;
}

/* Catalog cards */
.card,
.catalog-card,
div[style*='border:1px solid'] {
    background-color: #222;
    border: 1px solid #444;
    margin: 10px 0;
    padding: 10px;
}

/* Hero section on index */
.hero {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

/* Footer */
.site-footer {
    text-align: center;
    padding: 15px;
    background-color: #000;
    color: #aaa;
    margin-top: 40px;
}


.sidebar-image {
    position: fixed;
    right: 20px;
    top: 150px;
    width: 180px;
    z-index: 999;
}
.sidebar-image img {
    width: 100%;
    border-radius: 6px;
    box-shadow: 0 0 12px rgba(0,0,0,0.7);
}