body.dark-theme {
    background-color: #050505;
    color: #e0e0e0;
    font-family: 'Courier New', Courier, monospace;
    margin: 0;
    display: flex;
}
.sidebar {
    width: 250px;
    background: #111;
    padding: 20px;
    height: 100vh;
    border-right: 1px solid #333;
}
.sidebar-logo {
    width: 100%;
    margin-bottom: 30px;
}
.sidebar a {
    display: block;
    color: #888;
    text-decoration: none;
    padding: 10px 0;
    border-bottom: 1px solid #222;
}
.sidebar a:hover, .sidebar a.active {
    color: #00ffcc;
}
.main-content {
    flex: 1;
    padding: 20px;
}
.btn-neon {
    background: transparent;
    border: 1px solid #00ffcc;
    color: #00ffcc;
    padding: 10px 20px;
    cursor: pointer;
    text-transform: uppercase;
}
.btn-neon:hover {
    background: #00ffcc;
    color: #000;
}
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { border: 1px solid #333; padding: 10px; text-align: left; }
.profit { color: #00ffcc; }
.loss { color: #ff3366; }
.admin-form input, .admin-form select {
    display: block; margin-bottom: 10px; padding: 10px; width: 300px;
    background: #111; color: #fff; border: 1px solid #333;
}
.login-box {
    margin: 100px auto; width: 300px; text-align: center;
}
.login-box input {
    display: block; width: 100%; margin-bottom: 15px; padding: 10px;
    background: #111; border: 1px solid #333; color: white;
}