/* ============================================
   Sidebar Styles
   ============================================ */

/* Top & Bottom Bar */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    z-index: 1001;
    animation: shimmer 3s infinite;
}

.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--secondary), var(--primary));
    z-index: 1001;
}

@keyframes shimmer {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #FFFFFF 0%, #F8F9FE 100%);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    z-index: 1000;
    transition: width var(--transition-normal), box-shadow var(--transition-normal);
    overflow: hidden;
}

.sidebar:hover {
    width: var(--sidebar-hover-width);
    box-shadow: var(--shadow-lg);
}

.sidebar-logo {
    font-size: 16px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 30px;
    opacity: 0;
    transition: opacity var(--transition-normal);
    white-space: nowrap;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar:hover .sidebar-logo {
    opacity: 1;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    padding: 0 12px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.sidebar-nav a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--primary);
    border-radius: 0 4px 4px 0;
    transition: height var(--transition-fast);
}

.sidebar-nav a:hover {
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.1), rgba(162, 155, 254, 0.1));
    color: var(--primary);
}

.sidebar-nav a:hover::before {
    height: 60%;
}

.sidebar-nav a.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
}

.sidebar-nav a.active::before {
    display: none;
}

.sidebar-nav a svg {
    min-width: 24px;
    width: 24px;
    height: 24px;
}

.sidebar:hover .sidebar-nav a span {
    opacity: 1;
}