/* Minimal Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 80px;
    height: 100vh;
    background: #050505;
    border-right: var(--border-gold);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 0;
    z-index: 100;
    overflow: visible; /* Allow tooltips to overflow */
    transition: all 0.3s ease;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
    list-style: none;
    align-items: center;
}

.nav-item {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
}

.nav-link {
    width: 45px;
    height: 45px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-dim);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid transparent;
    cursor: pointer;
    border-radius: 12px;
    transform-style: preserve-3d;
    transform: perspective(400px) rotateY(0deg) scale(1);
}

.nav-link svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: drop-shadow(0 0 0 rgba(212, 175, 55, 0));
}

.nav-link:hover, .nav-link.active {
    color: var(--gold-primary);
    border-color: rgba(212, 175, 55, 0.4);
    background: linear-gradient(145deg, rgba(212, 175, 55, 0.1), rgba(0, 0, 0, 0.5));
    transform: perspective(400px) rotateY(15deg) rotateX(10deg) scale(1.1);
    box-shadow: 
        -5px 5px 15px rgba(0,0,0,0.8), 
        inset 0 0 10px rgba(212, 175, 55, 0.2),
        0 0 15px rgba(212, 175, 55, 0.3);
}

.nav-link:hover svg, .nav-link.active svg {
    transform: translateZ(12px) scale(1.15);
    filter: drop-shadow(0 4px 8px rgba(212, 175, 55, 0.7));
}

.nav-tooltip {
    position: absolute;
    left: 80px;
    top: 50%;
    transform-origin: left center;
    transform: translateY(-50%) translateX(-15px) perspective(400px) rotateY(-20deg);
    background: linear-gradient(135deg, rgba(10,10,10,0.9), rgba(0,0,0,0.95));
    color: var(--gold-primary);
    padding: 0.5rem 1.2rem;
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 6px;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    white-space: nowrap;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(0,0,0,0.8), 0 0 10px rgba(212,175,55,0.1);
}

.nav-item:hover .nav-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(10px) perspective(400px) rotateY(0deg);
}