/* ============================================
   SIDEBAR - Design Moderno e Limpo
   ============================================ */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: white;
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    z-index: var(--z-fixed);
    transition: transform var(--transition-base);
}

/* === HEADER DO SIDEBAR === */
.sidebar-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.sidebar-logo:hover {
    opacity: 0.8;
}

.sidebar-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.sidebar-logo-text {
    flex: 1;
}

.sidebar-logo-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--gray-900);
    margin: 0;
    line-height: 1.2;
}

.sidebar-logo-subtitle {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin: 0;
    line-height: 1;
}

/* === NAVEGAÇÃO === */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-4) 0;
}

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-item {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-6);
    color: var(--gray-600);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--primary-600);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    transition: height var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-600);
    background-color: var(--primary-50);
}

.nav-link:hover::before {
    height: 24px;
}

.nav-link.active {
    color: var(--primary-600);
    background-color: var(--primary-50);
}

.nav-link.active::before {
    height: 32px;
}

.nav-link-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
}

.nav-link-text {
    flex: 1;
}

/* === FOOTER DO SIDEBAR === */
.sidebar-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.sidebar-user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--gray-900);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin: 0;
}

.sidebar-user-logout {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-user-logout:hover {
    background-color: var(--danger-50);
    color: var(--danger-600);
}

/* === MOBILE HEADER === */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 0 var(--spacing-6);
    align-items: center;
    justify-content: space-between;
    z-index: var(--z-sticky);
}

.mobile-header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
}

.mobile-header-logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.125rem;
}

.mobile-header-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--gray-900);
    margin: 0;
}

.mobile-menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--gray-600);
    font-size: 1.25rem;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

/* === OVERLAY === */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.overlay.active {
    display: block;
    opacity: 1;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .mobile-header {
        display: flex;
    }

    .main-content {
        padding-top: calc(var(--header-height) + var(--spacing-6));
    }
}