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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0a0a1a; /* Dark blue/black space color */
    color: #e0e0e0; /* Light grey text */
    background-image: url('https://www.transparenttextures.com/patterns/stardust.png'); /* Subtle stardust texture */
    font-size: 16px;
}

.container {
    width: 1920px;
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    min-height: 1080px;
}

/* Header */
header {
    background-color: #1a1a2e;
    padding: 20px;
    border-bottom: 2px solid #3a3a5e;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title h1 {
    margin: 0;
}

.site-title a {
    color: #e0e0e0;
    text-decoration: none;
    font-size: 2rem;
}

.auth-buttons .button {
    color: #e0e0e0;
    background-color: #3a3a5e;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    margin-left: 10px;
    transition: background-color 0.3s;
}

.auth-buttons .button:hover {
    background-color: #5a5a7e;
}

/* Main Content Area */
.main-content {
    display: flex;
    flex: 1;
}

.left-sidebar, .right-sidebar {
    width: 250px;
    padding: 20px;
    background-color: #1a1a2e;
}

.left-sidebar {
    border-right: 2px solid #3a3a5e;
}

.right-sidebar {
    border-left: 2px solid #3a3a5e;
}

.left-sidebar h2, .right-sidebar h2 {
    color: #a0a0c0;
    margin-bottom: 20px;
}

.left-sidebar ul {
    list-style: none;
    padding: 0;
}

.left-sidebar ul li a {
    color: #e0e0e0;
    text-decoration: none;
    display: block;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 5px;
    transition: background-color 0.3s;
}

.left-sidebar ul li a:hover {
    background-color: #3a3a5e;
}

.left-sidebar ul li a.disabled-link {
    color: #888;
    cursor: not-allowed;
    pointer-events: none;
}

.left-sidebar ul li a.disabled-link:hover {
    background-color: transparent;
}

.disabled-link {
    color: #888;
    cursor: not-allowed;
    display: block;
    padding: 10px;
    text-decoration: none;
}

.content {
    flex: 1;
    padding: 40px;
}

.main-section h2, .content h2 {
    margin-bottom: 20px;
    font-size: 1.8rem;
    color: #a0a0c0;
}

/* Footer */
footer {
    background-color: #1a1a2e;
    text-align: center;
    padding: 20px;
    border-top: 2px solid #3a3a5e;
}