body {
    overflow-x: hidden;
}
.sidebar {
    width: 280px;
    min-height: 100vh;
    background: linear-gradient(135deg, #3c362a 0%, #0f110c 100%);
    transition: all 0.3s ease;
}
.sidebar.collapsed {
    width: 80px;
}
.sidebar-link {
    color: #a0a3bd;
    transition: all 0.2s ease;
    border-radius: 8px;
    margin: 4px 16px;
    white-space: nowrap;
    overflow: hidden;
}
.sidebar-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}
.sidebar-link.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}
.profile-section {
    display: flex;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.main-content {
    background-color: #f8f9fa;
    min-height: 100vh;
    transition: all 0.3s ease;
}
.toggle-btn {
    background: white;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    z-index: 100;
    cursor: pointer;
    transition: transform 0.3s ease;
    margin: 10px 20px;
    vertical-align: middle;
    text-align: center;
}
.collapsed .toggle-btn {
    transform: rotate(180deg);
}
.collapsed .hide-on-collapse {
    display: none;
}
.collapsed .logo-text {
    opacity: 0;
}
.collapsed .profile-info {
    opacity: 0;
}
.collapsed .sidebar-link {
    text-align: center;
    padding: 1rem !important;
    margin: 4px 8px;
}
.collapsed .sidebar-link i {
    margin: 0 !important;
}
.profile-info {
    transition: opacity 0.2s ease;
}