/* Left Sidebar Navigation Styles */

:root {
    --sidebar-width: 320px;
    --sidebar-width-collapsed: 70px;
    --sidebar-bg: rgba(0, 0, 0, 0.95);
    --sidebar-bg-secondary: rgba(17, 17, 17, 0.9);
    --sidebar-border: rgba(239, 68, 68, 0.2);
    --sidebar-text: #ffffff;
    --sidebar-text-secondary: #9ca3af;
    --sidebar-hover: rgba(239, 68, 68, 0.1);
    --sidebar-active: rgba(239, 68, 68, 0.2);
    --sidebar-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
    
    --transition-sidebar: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s ease;
}

/* Main Sidebar Container */
.left-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--sidebar-border);
    box-shadow: var(--sidebar-shadow);
    z-index: 999;
    transform: translateX(-100%);
    transition: transform var(--transition-sidebar);
    overflow: hidden;
}

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

.left-sidebar.collapsed {
    width: var(--sidebar-width-collapsed);
    transform: translateX(0);
}

.sidebar-container {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

/* Sidebar Header */
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--sidebar-border);
    background: var(--sidebar-bg-secondary);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-logo-icon {
    width: 35px;
    height: 35px;
    background: linear-gradient(135deg, #8b0000, #660000);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    border: 1px solid var(--sidebar-border);
}

.sidebar-logo-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--sidebar-text);
    transition: opacity var(--transition-fast);
}

.left-sidebar.collapsed .sidebar-logo-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar-toggle {
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--sidebar-border);
    border-radius: 6px;
    color: var(--sidebar-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    background: var(--sidebar-hover);
    color: #8b0000;
    border-color: rgba(239, 68, 68, 0.4);
}

.toggle-icon {
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
}

.left-sidebar.collapsed .toggle-icon {
    transform: rotate(180deg);
}

/* Authentication Section */
.sidebar-auth {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--sidebar-border);
    transition: all var(--transition-fast);
}

.left-sidebar.collapsed .sidebar-auth {
    opacity: 0;
    height: 0;
    padding: 0 1.25rem;
    overflow: hidden;
}

.auth-container {
    text-align: center;
}

.auth-welcome {
    margin-bottom: 1.5rem;
}

.auth-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--sidebar-text);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #8b0000, #ffffff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-subtitle {
    font-size: 0.9rem;
    color: var(--sidebar-text-secondary);
    line-height: 1.4;
}

.auth-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.btn-auth {
    position: relative;
    padding: 0.875rem 1.25rem;
    border-radius: 8px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
    overflow: hidden;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #8b0000, #660000);
    color: white;
    border: 1px solid transparent;
}

.btn-outline {
    background: transparent;
    color: var(--sidebar-text);
    border: 1px solid var(--sidebar-border);
}

.btn-outline:hover {
    background: var(--sidebar-hover);
    border-color: rgba(239, 68, 68, 0.4);
    color: #8b0000;
}

.btn-auth .btn-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-auth:hover .btn-glow {
    opacity: 1;
}

.btn-icon {
    font-size: 1rem;
}

.btn-text {
    font-size: 0.95rem;
}

.auth-divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--sidebar-border);
}

.divider-text {
    background: var(--sidebar-bg);
    padding: 0 1rem;
    font-size: 0.8rem;
    color: var(--sidebar-text-secondary);
    position: relative;
}

.social-auth {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: transparent;
    border: 1px solid var(--sidebar-border);
    border-radius: 6px;
    color: var(--sidebar-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
    justify-content: flex-start;
}

.social-btn:hover {
    background: var(--sidebar-hover);
    border-color: rgba(239, 68, 68, 0.4);
}

.social-icon {
    font-size: 1.1rem;
}

/* User Profile Section */
.sidebar-profile {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--sidebar-border);
    transition: all var(--transition-fast);
}

.sidebar-profile.hidden {
    display: none;
}

.profile-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.profile-avatar {
    position: relative;
    margin-bottom: 1rem;
}

.avatar-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--sidebar-border);
    object-fit: cover;
}

.avatar-status {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--sidebar-bg);
}

.avatar-status.online {
    background: #10b981;
}

.avatar-status.away {
    background: #f59e0b;
}

.avatar-status.offline {
    background: #6b7280;
}

.profile-info {
    width: 100%;
}

.profile-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--sidebar-text);
    margin-bottom: 0.25rem;
}

.profile-level {
    font-size: 0.8rem;
    color: var(--sidebar-text-secondary);
    margin-bottom: 0.75rem;
}

.profile-stats {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.stat {
    font-size: 0.8rem;
    color: var(--sidebar-text-secondary);
}

/* Navigation Sections */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

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

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(239, 68, 68, 0.3);
    border-radius: 2px;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--sidebar-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 1.25rem;
    margin-bottom: 0.75rem;
    transition: opacity var(--transition-fast);
}

.left-sidebar.collapsed .nav-section-title {
    opacity: 0;
    height: 0;
    margin: 0;
    overflow: hidden;
}

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

.nav-item {
    margin-bottom: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--sidebar-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
    border-radius: 0;
}

.nav-link:hover {
    background: var(--sidebar-hover);
    color: #8b0000;
    padding-left: 1.5rem;
}

.nav-link.active {
    background: var(--sidebar-active);
    color: #8b0000;
    border-right: 3px solid #8b0000;
}

.nav-icon {
    font-size: 1rem;
    min-width: 1.2rem;
    text-align: center;
    transition: transform var(--transition-fast);
}

.nav-link:hover .nav-icon {
    transform: scale(1.1);
}

.nav-text {
    flex: 1;
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.left-sidebar.collapsed .nav-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.nav-badge {
    background: #8b0000;
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    min-width: 1.2rem;
    text-align: center;
    transition: opacity var(--transition-fast);
}

.nav-badge.new {
    background: #10b981;
    animation: pulse 2s infinite;
}

.left-sidebar.collapsed .nav-badge {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--sidebar-border);
    background: var(--sidebar-bg-secondary);
}

.footer-links {
    display: flex;
    justify-content: space-around;
    margin-bottom: 1rem;
}

.footer-link {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sidebar-text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.footer-link:hover {
    background: var(--sidebar-hover);
    color: #8b0000;
}

.footer-icon {
    font-size: 1.1rem;
}

.notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: #8b0000;
    border-radius: 50%;
    display: none; /* Hidden by default */
    animation: none;
    transition: all 0.3s ease;
    box-shadow: 0 0 4px rgba(139, 0, 0, 0.5);
}

.notification-dot.pulse {
    animation: pulse 2s infinite;
}

/* Enhanced pulse animation for new notifications */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.left-sidebar.collapsed .footer-social {
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.social-link {
    color: var(--sidebar-text-secondary);
    text-decoration: none;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: #8b0000;
    transform: scale(1.1);
}

/* Floating Toggle Button */
.sidebar-floating-toggle {
    position: fixed;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #8b0000, #660000);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 998;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.3);
}

.sidebar-floating-toggle:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 25px rgba(239, 68, 68, 0.5);
}

.left-sidebar.active + .sidebar-floating-toggle {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-50%) scale(0.8);
}

.floating-toggle-icon {
    font-size: 1.2rem;
    font-weight: 500;
}

.floating-toggle-glow {
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #8b0000, #a50000);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-fast);
    filter: blur(8px);
}

.sidebar-floating-toggle:hover .floating-toggle-glow {
    opacity: 0.6;
}

/* Sidebar Backdrop */
.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.left-sidebar.active ~ .sidebar-backdrop {
    opacity: 1;
    visibility: visible;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .left-sidebar {
        width: 300px;
    }
    
    .left-sidebar.collapsed {
        transform: translateX(-100%);
    }
    
    .sidebar-floating-toggle {
        left: 15px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 768px) {
    .left-sidebar {
        width: 280px;
    }
    
    .sidebar-header {
        padding: 1rem;
    }
    
    .sidebar-auth {
        padding: 1rem;
    }
    
    .nav-link {
        padding: 0.625rem 1rem;
    }
}

@media (max-width: 480px) {
    .left-sidebar {
        width: 100%;
        max-width: 320px;
    }
    
    .sidebar-floating-toggle {
        width: 40px;
        height: 40px;
        left: 10px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus States */
.sidebar-toggle:focus,
.nav-link:focus,
.footer-link:focus,
.btn-auth:focus,
.social-btn:focus,
.sidebar-floating-toggle:focus {
    outline: 2px solid #8b0000;
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --sidebar-border: #8b0000;
        --sidebar-text-secondary: #ffffff;
    }
}

/* Theme Adjustments */
.theme-dark {
    --sidebar-bg: rgba(0, 0, 0, 0.98);
    --sidebar-bg-secondary: rgba(10, 10, 10, 0.95);
}

.theme-light {
    --sidebar-bg: rgba(255, 255, 255, 0.95);
    --sidebar-bg-secondary: rgba(250, 250, 250, 0.9);
    --sidebar-text: #1f2937;
    --sidebar-text-secondary: #6b7280;
    --sidebar-border: rgba(239, 68, 68, 0.2);
}