/* Enhanced Navigation System - Glassmorphism Design */

/* FIXED: All CSS variables now in styles.css - this file uses inherited variables */

* {
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

/* Skip Navigation Link */
.skip-nav {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 0 0 8px 0;
    z-index: 9999;
    transition: top 0.3s ease;
}

.skip-nav:focus {
    top: 0;
    outline: 2px solid white;
    outline-offset: 2px;
}

/* Main Layout Container */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Mobile Hamburger Menu */
.mobile-menu-toggle {
    position: fixed;
    /* Add safe area padding for iOS devices */
    top: calc(1rem + constant(safe-area-inset-top)); /* iOS 11 */
    top: calc(1rem + env(safe-area-inset-top, 0px)); /* iOS 11.2+ */
    left: 1rem;
    width: 44px;
    height: 44px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    transition: var(--nav-transition);
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.mobile-menu-toggle:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Hamburger Icon Animation */
.hamburger {
    width: 24px;
    height: 20px;
    position: relative;
    transform: rotate(0deg);
    transition: 0.5s ease-in-out;
    cursor: pointer;
}

.hamburger span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: var(--text-primary);
    border-radius: 2px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: 0.25s ease-in-out;
}

.hamburger span:nth-child(1) {
    top: 0px;
}

.hamburger span:nth-child(2) {
    top: 8px;
}

.hamburger span:nth-child(3) {
    top: 16px;
}

.mobile-menu-toggle.is-active .hamburger span:nth-child(1) {
    top: 8px;
    transform: rotate(135deg);
}

.mobile-menu-toggle.is-active .hamburger span:nth-child(2) {
    opacity: 0;
    left: -60px;
}

.mobile-menu-toggle.is-active .hamburger span:nth-child(3) {
    top: 8px;
    transform: rotate(-135deg);
}

/* Dynamic Navigation Sidebar */
.nav-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height for mobile browsers */
    width: var(--nav-width-expanded);
    padding-top: env(safe-area-inset-top, 0px);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    transition: var(--nav-transition);
    z-index: 999;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    will-change: transform, width;
}

.nav-sidebar.is-collapsed {
    width: var(--nav-width-collapsed);
}

/* Removed hover expansion - sidebar stays collapsed until toggle is clicked */

/* Mobile Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 998;
}

.nav-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

/* User Profile Section */
.nav-profile {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
}

.profile-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--nav-transition);
}

.profile-info:hover {
    background: rgba(255, 255, 255, 0.05);
}

.profile-avatar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
    flex-shrink: 0;
}

.profile-details {
    flex: 1;
    min-width: 0;
    transition: opacity 0.3s ease;
}

.nav-sidebar.is-collapsed .profile-details {
    opacity: 0;
    pointer-events: none;
}

.profile-name {
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-status {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.status-dot {
    width: 6px;
    height: 6px;
    background: var(--success-color);
    border-radius: 50%;
}

.status-text {
    color: var(--text-secondary);
}

/* Profile Switcher Dropdown */
.profile-switcher {
    position: relative;
}

.profile-dropdown {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    font-size: 14px;
    transition: var(--nav-transition);
    min-height: 44px;
    width: 100%;
    color: var(--text-primary);
}

.profile-dropdown:hover {
    background: rgba(255, 255, 255, 0.08);
}

.profile-dropdown:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.nav-sidebar.is-collapsed .profile-dropdown span {
    display: none;
}

/* Main Navigation */
.nav-main {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
    overflow-x: hidden;
}

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

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

.nav-main::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

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

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

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--nav-transition);
    position: relative;
    min-height: var(--nav-item-height);
    font-size: 14px;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: -2px;
    color: var(--text-primary);
}

.nav-link.is-active {
    color: var(--accent-color);
    background: rgba(99, 102, 241, 0.1);
}

.nav-link.is-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-color);
    border-radius: 0 3px 3px 0;
}

.nav-icon {
    width: 24px;
    display: flex !important;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Ensure Font Awesome icons are visible */
.nav-icon i {
    display: inline-block !important;
    font-size: 18px;
    line-height: 1;
}

.nav-label {
    white-space: nowrap;
    overflow: hidden;
    transition: opacity 0.3s ease;
}

.nav-sidebar.is-collapsed .nav-label {
    opacity: 0;
    pointer-events: none;
}

/* Collapsed state - maintain exact same padding for consistent icon position */
.nav-sidebar.is-collapsed .nav-link {
    padding: 0.75rem 1rem;
    justify-content: flex-start;
    position: relative; /* Ensure active indicator shows */
}

.nav-sidebar.is-collapsed .nav-icon {
    margin: 0;
    width: 24px;
}

/* Ensure active indicator shows in collapsed state */
.nav-sidebar.is-collapsed .nav-link.is-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-color);
    border-radius: 0 3px 3px 0;
}

/* Tooltip for collapsed state */
.nav-sidebar.is-collapsed .nav-link::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 0.5rem;
    background: var(--secondary-bg);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    box-shadow: 0 2px 8px var(--shadow-color);
    z-index: 1000;
}

.nav-sidebar.is-collapsed .nav-link:hover::after {
    opacity: 1;
}

/* Quick Access Section */
.nav-quick-access {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
}

.quick-access-title {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    letter-spacing: 0.5px;
    transition: opacity 0.3s ease;
}

.nav-sidebar.is-collapsed .quick-access-title {
    opacity: 0;
}

.quick-profiles {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quick-profile-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--nav-transition);
}

.quick-profile-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.quick-profile-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--secondary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    flex-shrink: 0;
}

.quick-profile-name {
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity 0.3s ease;
}

.nav-sidebar.is-collapsed .quick-profile-name {
    opacity: 0;
}

/* Add Profile Button */
.add-profile-btn {
    width: 100%;
    padding: 0.75rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 14px;
    font-weight: 500;
    transition: var(--nav-transition);
    margin-top: 0.75rem;
    min-height: 44px;
}

.add-profile-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.add-profile-btn:focus {
    outline: 2px solid white;
    outline-offset: 2px;
}

.nav-sidebar.is-collapsed .add-profile-btn span {
    display: none;
}

/* Dynamic Main Content Area */
.main-content {
    position: fixed;
    left: var(--nav-width-expanded);
    right: 0;
    top: 0;
    bottom: 0;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height */
    background: var(--primary-bg);
    overflow-x: hidden;
    overflow-y: auto;
    margin: 0 !important; /* CRITICAL FIX: Prevent margin that causes gap */
}

.nav-sidebar.is-collapsed ~ .main-content,
.nav-sidebar.is-collapsed + .main-content,
body:has(.nav-sidebar.is-collapsed) .main-content {
    left: var(--nav-width-collapsed);
}

/* Desktop Collapse Toggle */
.nav-collapse-toggle {
    position: absolute;
    top: 50%;
    right: -16px;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    cursor: pointer;
    display: flex !important;
    align-items: center;
    justify-content: center;
    transition: var(--nav-transition);
    color: var(--text-primary);
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .nav-collapse-toggle {
        display: none !important; /* Hide on mobile since we have hamburger menu */
    }
}

.nav-collapse-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-collapse-toggle i {
    transition: transform 0.3s ease;
}

.nav-sidebar.is-collapsed .nav-collapse-toggle i {
    transform: rotate(180deg);
}

/* Enhanced Responsive Navigation System */

/* Small Mobile (< 480px) */
@media (max-width: 479px) {
    .mobile-menu-toggle {
        display: flex;
        width: 40px;
        height: 40px;
        top: calc(0.75rem + env(safe-area-inset-top, 0px));
        left: 0.75rem;
    }

    .nav-sidebar {
        width: min(85vw, 280px);
        transform: translateX(-100%);
        padding-top: calc(60px + env(safe-area-inset-top, 0px));
    }

    .nav-sidebar.is-open {
        transform: translateX(0);
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.5);
    }

    .nav-profile {
        padding: 1rem;
    }

    .nav-link {
        padding: 0.65rem 1rem;
        font-size: 14px;
    }

    .main-content {
        left: 0 !important; /* CRITICAL FIX: Override for mobile */
        width: 100vw !important;
        margin-left: 0;
        padding-top: calc(56px + env(safe-area-inset-top, 0px));
    }
}

/* Mobile (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-sidebar {
        width: min(75vw, 300px);
        transform: translateX(-100%);
        padding-top: calc(20px + env(safe-area-inset-top, 0px));
    }

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

    .main-content {
        left: 0 !important; /* CRITICAL FIX: Override for mobile */
        width: 100vw !important;
        margin-left: 0;
        padding-top: env(safe-area-inset-top, 0px);
    }
}

/* Tablet Portrait (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .mobile-menu-toggle {
        display: none;
    }

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

    .nav-sidebar.is-expanded {
        width: var(--nav-width-expanded);
    }

    .main-content {
        margin-left: var(--nav-width-collapsed);
        transition: margin-left 0.3s ease;
    }

    .nav-sidebar.is-expanded ~ .main-content {
        margin-left: var(--nav-width-expanded);
    }

    /* Show tooltips on collapsed state */
    .nav-sidebar:not(.is-expanded) .nav-link::after {
        opacity: 1;
    }
}

/* Tablet Landscape & Small Desktop (992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .nav-sidebar {
        width: var(--nav-width-expanded);
    }

    .nav-sidebar.is-collapsed {
        width: var(--nav-width-collapsed);
    }

    .main-content {
        margin-left: var(--nav-width-expanded);
    }

    .nav-sidebar.is-collapsed ~ .main-content {
        margin-left: var(--nav-width-collapsed);
    }
}

/* Desktop (1200px - 1919px) */
@media (min-width: 1200px) and (max-width: 1919px) {
    .nav-sidebar {
        width: var(--nav-width-expanded);
    }

    .nav-link {
        padding: 0.875rem 1.25rem;
        font-size: 15px;
    }

    .nav-profile {
        padding: 2rem 1.25rem;
    }
}

/* Large Desktop (>= 1920px) */
@media (min-width: 1920px) {
    :root {
        --nav-width-expanded: 280px;
        --nav-width-collapsed: 70px;
    }

    .nav-sidebar {
        width: var(--nav-width-expanded);
    }

    .nav-sidebar.is-collapsed {
        width: var(--nav-width-collapsed);
    }

    .nav-link {
        padding: 1rem 1.5rem;
        font-size: 16px;
        min-height: 56px;
    }

    .nav-icon i {
        font-size: 20px;
    }

    .avatar-circle {
        width: 48px;
        height: 48px;
        font-size: 18px;
    }
}

/* Focus Visible Polyfill */
.js-focus-visible :focus:not(.focus-visible) {
    outline: none;
}

/* Animations */
@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

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

/* Mobile Safe Area Adjustments */
@media (max-width: 768px) {
    /* Add padding to account for mobile browser bottom bar */
    .nav-quick-access {
        padding-bottom: env(safe-area-inset-bottom, 20px);
        padding-bottom: max(env(safe-area-inset-bottom), 80px);
        margin-bottom: 20px;
    }
    
    /* Ensure the navigation sidebar doesn't get cut off */
    .nav-sidebar {
        padding-bottom: env(safe-area-inset-bottom, 20px);
        max-height: calc(100vh - env(safe-area-inset-bottom, 0px));
        height: calc(100vh - env(safe-area-inset-bottom, 0px));
    }
    
    /* Additional spacing for the button itself */
    .nav-quick-access .add-profile-btn {
        margin-bottom: 10px;
    }
}

/* For iOS devices specifically */
@supports (padding: max(0px)) {
    @media (max-width: 768px) {
        .nav-quick-access {
            padding-bottom: max(20px, env(safe-area-inset-bottom, 20px));
            padding-bottom: max(80px, env(safe-area-inset-bottom));
        }
    }
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}