.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    background: linear-gradient(180deg, #1e3a8a 0%, #1e40af 100%);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    transition: width 0.3s ease;
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

    .sidebar.collapsed {
        width: 70px;
    }

    .sidebar.expanded {
        width: 260px;
    }

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 15px;
    min-height: 70px;
}

.hamburger-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    transition: transform 0.3s;
    min-width: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

    .hamburger-btn:hover {
        transform: scale(1.1);
    }

    .hamburger-btn i {
        display: block;
        line-height: 1;
    }

.brand-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s;
    line-height: 1.5;
}

.sidebar.expanded .brand-text {
    opacity: 1;
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 10px 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-item {
    margin: 0;
}

    .nav-item.mt-auto {
        margin-top: auto;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-top: 10px;
    }

.nav-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
    white-space: nowrap;
    gap: 15px;
    min-height: 48px;
}

    .nav-link:hover {
        background: rgba(255, 255, 255, 0.1);
        color: white;
    }

    .nav-link.active {
        background: rgba(255, 255, 255, 0.15);
        color: white;
        border-left: 4px solid #60a5fa;
    }

.nav-icon {
    font-size: 1.25rem;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    line-height: 1;
    vertical-align: middle;
}

    .nav-icon::before {
        vertical-align: middle;
    }

.nav-text {
    opacity: 0;
    transition: opacity 0.3s;
    line-height: 1.5;
    flex: 1;
    display: inline-block;
    vertical-align: middle;
}

.sidebar.expanded .nav-text {
    opacity: 1;
}

/* Scrollbar personalizado */
.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

    .sidebar-nav::-webkit-scrollbar-thumb:hover {
        background: rgba(255, 255, 255, 0.3);
    }

/* Responsive */
@media (max-width: 768px) {
    .sidebar.collapsed {
        width: 0;
    }

    .sidebar.expanded {
        width: 260px;
    }
}

.nav-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    margin: 0 auto 10px auto;
    display: block;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar.expanded .nav-logo {
    opacity: 1;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 10px;
}

.sidebar.collapsed .nav-logo {
    visibility: hidden;
}

.sidebar.collapsed .sidebar-header {
    padding: 20px 10px;
}