.nav-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--nav-bg);
    width: 280px;
    box-shadow: 2px 0 12px var(--shadow);
}

/* Header */
.nav-header {
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 2px solid var(--border);
    background-color: var(--nav-header-bg);
    position: relative;
    overflow: hidden;
    height: 66px;
    min-height: 64px;
    flex-shrink: 0;
}

    .nav-header::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -20%;
        width: 200px;
        height: 200px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
    }

.nav-logo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    border: 2px solid rgba(255, 255, 255, 0.3);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.nav-brand h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.nav-brand p {
    margin: 0;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

/* Menu Navigation */
.nav-menu {
    flex: 1;
    overflow-y: auto;
    padding: 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.company-switcher-shell {
    padding: 10px 12px 0;
}

.company-switcher-modern {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0.65rem;
    border-radius: 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

.company-switcher-modern.is-loading {
    opacity: 0.7;
}

.company-switcher-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: rgba(50, 91, 179, 0.12);
    color: var(--primary);
    display: grid;
    place-items: center;
}

.company-switcher-icon i {
    font-size: 0.95rem;
}

.company-switcher-select-wrap {
    position: relative;
    flex: 1;
    min-width: 0;
}

.company-select-modern {
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    outline: none;
    cursor: pointer;
    border-radius: 10px;
    padding: 0.6rem 2.2rem 0.6rem 0.8rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.company-select-modern:hover {
    border-color: #9db5ea;
}

.company-select-modern:focus {
    border-color: #325bb3;
    box-shadow: 0 0 0 4px rgba(50, 91, 179, 0.12);
}

.company-select-modern:disabled {
    cursor: progress;
    opacity: 0.75;
}

.company-select-chevron {
    position: absolute;
    top: 50%;
    right: 0.95rem;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 0.9rem;
    pointer-events: none;
}

/* Nav Items */
.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.nav-item:hover {
    background: linear-gradient(135deg, #325bb3 0%, #4a73c9 100%);
    color: #ffffff;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(50, 91, 179, 0.25);
}

.nav-item:hover .nav-icon {
    color: #ffffff !important;
}

.nav-item.active {
    background: linear-gradient(135deg, #325bb3 0%, #4a73c9 100%);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(50, 91, 179, 0.3);
}

.nav-item.active .nav-icon {
    color: #ffffff !important;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 70%;
    background: #ffffff;
    border-radius: 0 4px 4px 0;
}

/* Nav Groups */
.nav-group {
    margin: 4px 0;
}

.nav-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-group-header:hover {
    background: var(--bg-secondary);
    transform: translateX(2px);
}

.nav-group-title {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
}

.nav-expand-icon {
    color: var(--text-secondary);
    transition: transform 0.3s ease;
    font-size: 20px;
}

.nav-group.expanded .nav-expand-icon {
    transform: rotate(180deg);
}

.nav-group-content {
    margin-top: 4px;
    padding-left: 12px;
    border-left: 3px solid var(--border);
    margin-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    animation: slideDown 0.18s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
    overflow: hidden;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-item-child {
    padding: 10px 16px;
    font-size: 14px;
}

/* Nav Icons */
.nav-icon {
    font-size: 18px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.nav-expand-icon {
    font-size: 16px;
    transition: transform 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.menu-icon {
    color: var(--primary) !important;
}

.success-icon {
    color: #22c55e !important;
}

.info-icon {
    color: #3b82f6 !important;
}

.warning-icon {
    color: #f59e0b !important;
}

.secondary-icon {
    color: #9333ea !important;
}

.dark-icon {
    color: #475569 !important;
}

.tertiary-icon {
    color: #06b6d4 !important;
}

.nav-text {
    flex: 1;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    letter-spacing: 0.02em;
}

.nav-tutorial-mobile {
    padding: 12px;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

/* Footer */
.nav-footer {
    padding: 20px 24px;
    border-top: 2px solid var(--border);
    background: var(--bg-secondary);
}

.nav-divider {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin-bottom: 16px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px;
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
    background: var(--card-bg);
    box-shadow: 0 2px 8px var(--shadow);
}

.user-info:hover {
    background: linear-gradient(135deg, #325bb3 0%, #4a73c9 100%);
    box-shadow: 0 4px 12px rgba(50, 91, 179, 0.3);
    transform: translateY(-2px);
}

.user-info:hover .user-name,
.user-info:hover .user-role {
    color: #ffffff;
}

.user-info:hover .user-avatar {
    background: rgba(255, 255, 255, 0.3);
    color: #ffffff;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #325bb3 0%, #4a73c9 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(50, 91, 179, 0.3);
}

.user-details {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.user-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

@media (max-width: 768px) {
    .company-switcher-shell {
        padding: 10px 12px 0;
    }
}

.user-role {
    font-size: 13px;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

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

.nav-menu::-webkit-scrollbar-track {
    background: transparent;
}

.nav-menu::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.nav-menu::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Animations */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
    100% {
        transform: scale(1);
    }
}

.nav-item:hover .nav-icon {
    animation: pulse 0.5s ease-in-out;
}

/* Responsividade */
@media (max-width: 768px) {
    .nav-container {
        width: 280px;
    }

    .nav-tutorial-mobile {
        margin-top: 10px;
        padding: 12px 12px 4px;
    }
    
    .nav-item {
        padding: 10px 14px;
        font-size: 14px;
    }
    
    .nav-icon {
        font-size: 20px !important;
    }
}