/* BASE */
body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background: #0D0D0D;
    color: #FFFFFF;
    display: flex;
}

a { color: #00D4FF; text-decoration: none; }

/* SIDEBAR */
.sidebar {
    width: 250px;
    background: #111;
    height: 100vh;
    padding-top: 20px;
    position: fixed;
    top: 0;
    left: 0;
    border-right: 1px solid #1f1f1f;
}

.sidebar-header h2 {
    margin: 0;
    color: #00FF95;
    text-align: center;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin-top: 30px;
}

.sidebar-menu li {
    padding: 12px 20px;
}

.sidebar-menu li a {
    color: #CCC;
    font-size: 15px;
}

.sidebar-menu li:hover {
    background: #1A1A1A;
}

/* HEADER */
.header {
    height: 60px;
    background: #111;
    width: calc(100% - 250px);
    margin-left: 250px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    position: fixed;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid #1f1f1f;
}

.header .panel-title {
    font-size: 20px;
    color: #00D4FF;
}

.user-name { margin-right: 10px; }

.user-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
}

/* MAIN CONTENT */
.main-content {
    margin-left: 250px;
    margin-top: 60px;
    padding: 30px;
}