/* ===================================
   SIDEBAR COMPONENT STYLES
   =================================== */

/* Sidebar Variables */
:root {
    --sidebar-width-1: 280px;
    --sidebar-collapsed-width-1: 70px;
    --sidebar-bg-1: var(--header-bg-1);
    --sidebar-border-1: var(--border-color-1);
    --sidebar-text-1: var(--nav-text-1);
    --sidebar-text-secondary-1: var(--text-secondary-1);
    --sidebar-hover-bg-1: rgba(76, 138, 137, 0.1);
    --sidebar-active-bg-1: var(--primary-color-1);
    --sidebar-active-text-1: #ffffff;
    --sidebar-transition-1: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode variables override */
[data-theme="dark"] {
    --sidebar-hover-bg-1: rgba(76, 138, 137, 0.2);
    --sidebar-active-text-1: #ffffff;
}

/* Main Sidebar Container */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width-1);
    height: 100vh;
    background-color: var(--sidebar-bg-1);
    border-right: 1px solid var(--sidebar-border-1);
    z-index: 1000;
    transform: translateX(-100%);
    transition: var(--sidebar-transition-1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar.sidebar-open {
    transform: translateX(0);
}

/* Sidebar Header */
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--sidebar-border-1);
    min-height: 70px;
    background-color: var(--sidebar-bg-1);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo-img {
    height: 60px;             /* Better size for visibility */
    width: auto;               /* Maintain proportions */
    object-fit: contain;       /* Prevent distortion */
    transition: transform 0.25s ease;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .logo-img {
        height: 80px;          /* smaller on tablets */
    }
}

@media (max-width: 480px) {
    .logo-img {
        height: 70px;          /* smaller on phones */
    }
}

/* Responsive Header */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        max-width: 280px;
    }
    
    .sidebar.sidebar-open {
        transform: translateX(0);
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 100%;
        max-width: 280px;
    }
}

/* Sidebar Content */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
    background-color: var(--sidebar-bg-1);
}

/* Sidebar Navigation */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Sidebar Sections */
.sidebar-section {
    padding: 0 1rem;
}

.sidebar-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--sidebar-text-secondary-1);
    margin-bottom: 0.75rem;
    font-style: italic;
    padding: 0 0.75rem;
}

/* Sidebar Menu */
.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu-item {
    margin-bottom: 0.25rem;
}

/* Sidebar Links */
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--sidebar-text-1);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: var(--sidebar-transition-1);
    font-size: 0.95rem;
    position: relative;
}

.sidebar-link:hover {
    background-color: var(--sidebar-hover-bg-1);
    color: var(--primary-color-1);
}

.sidebar-link.active {
    background-color: var(--sidebar-active-bg-1);
    color: var(--sidebar-active-text-1);
}

.sidebar-link i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.sidebar-link span {
    flex: 1;
}

/* Submenu Styles */
.sidebar-submenu-toggle {
    cursor: pointer;
}

.sidebar-submenu-toggle.active {
    color: var(--primary-color-1);
    background-color: var(--sidebar-hover-bg-1);
}

.submenu-icon {
    margin-left: auto !important;
    font-size: 0.875rem !important;
    transition: transform 0.2s ease;
}

.sidebar-submenu {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0 2.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: transparent;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.sidebar-submenu.sidebar-submenu-open {
    max-height: 500px;
    opacity: 1;
    transform: translateY(0);
    animation: slideInFromTop 0.3s ease-out;
}

.sidebar-submenu .sidebar-link {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.sidebar-submenu .sidebar-link i {
    width: 16px;
    font-size: 0.875rem;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--sidebar-border-1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background-color: var(--sidebar-bg-1);
}

/* Online Status */
.online-status {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    background: var(--sidebar-bg-secondary);
    border-radius: 1rem;
    color: var(--sidebar-text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
}

.status-indicator {
    width: 10px;
    height: 10px;
    background-color: #10b981; /* Green color for online */
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
    100% {
        opacity: 1;
    }
}

.status-text {
    font-size: 0.70rem;
}
/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

[data-theme="dark"] .sidebar-overlay {
    background-color: rgba(0, 0, 0, 0.7);
}

.sidebar-overlay.sidebar-overlay-open {
    opacity: 1;
    visibility: visible;
}

/* Body state when sidebar is open */
body.sidebar-open {
    overflow: hidden;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

/* Desktop - Sidebar always visible */
@media (min-width: 1024px) {
    .sidebar {
        transform: translateX(0);
    }
    .sidebar-overlay {
        display: none;
    }
    
    body.sidebar-open {
        overflow: auto;
    }
    
    /* Adjust main content for sidebar */
    .main-content {
        margin-left: var(--sidebar-width-1);
        transition: margin-left 0.3s ease;
    }
    
    /* Collapsed sidebar state for desktop */
    .sidebar.sidebar-collapsed {
        width: var(--sidebar-collapsed-width-1);
    }
    
    .sidebar.sidebar-collapsed .sidebar-logo span,
    .sidebar.sidebar-collapsed .sidebar-link span,
    .sidebar.sidebar-collapsed .sidebar-section-title,
    .sidebar.sidebar-collapsed .user-info,
    .sidebar.sidebar-collapsed .submenu-icon {
        display: none;
    }
    
    .sidebar.sidebar-collapsed .sidebar-submenu {
        display: none;
    }
    
    .main-content.sidebar-collapsed-margin {
        margin-left: var(--sidebar-collapsed-width-1);
    }
}

/* Tablet - Sidebar can be toggled */
@media (min-width: 768px) and (max-width: 1023px) {
    .sidebar {
        width: 260px;
    }
}

/* Mobile - Full overlay sidebar */
@media (max-width: 767px) {
    .sidebar {
        width: 85vw;
        max-width: 320px;
    }
    
    .sidebar-header {
        padding: 1rem;
    }
    
    .sidebar-logo {
        font-size: 1rem;
    }
    
    .sidebar-link {
        padding: 1rem;
        font-size: 1rem;
    }
    
    .sidebar-section {
        padding: 0 0.5rem;
    }
    
    .sidebar-submenu {
        margin-left: 2rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .sidebar {
        width: 90vw;
    }
}

/* ===================================
   ANIMATIONS & TRANSITIONS
   =================================== */

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.sidebar.sidebar-open {
    animation: slideInFromLeft 0.3s ease-out;
}

.sidebar-overlay.sidebar-overlay-open {
    animation: fadeIn 0.3s ease-out;
}

/* ===================================
   ACCESSIBILITY & FOCUS STATES
   =================================== */

.sidebar-link:focus,
.sidebar-submenu-toggle:focus,
.theme-toggle-btn:focus {
    outline: 2px solid var(--primary-color-1);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .sidebar {
        border-width: 2px;
    }
    
    .sidebar-link {
        border: 1px solid transparent;
    }
    
    .sidebar-link:focus {
        border-color: var(--primary-color-1);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .sidebar,
    .sidebar-overlay,
    .sidebar-link,
    .sidebar-submenu {
        transition: none;
        animation: none;
    }
}