/* StirCraft Side Panel Navigation Styles */

/* =============================================================================
   MAIN NAVIGATION BAR
   ============================================================================= */

.navbar-stircraft {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-stircraft .navbar-brand {
    color: white !important;
    font-weight: bold;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.navbar-stircraft .navbar-brand:hover {
    opacity: 0.9;
}

.navbar-stircraft .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: color 0.2s ease;
    text-decoration: none;
}

.navbar-stircraft .nav-link:hover {
    color: white !important;
}

.navbar-text {
    color: rgba(255, 255, 255, 0.8) !important;
}

.menu-toggle {
    border-color: rgba(255, 255, 255, 0.3) !important;
    color: white !important;
    transition: all 0.2s ease;
}

.menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1) !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
    color: white !important;
}

/* =============================================================================
   SIDE PANEL OVERLAY
   ============================================================================= */

.side-panel-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    z-index: 1049;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.side-panel-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* =============================================================================
   SIDE PANEL
   ============================================================================= */

.side-panel {
    position: fixed;
    top: 80px; /* Start below navbar */
    right: -400px; /* Start hidden off-screen */
    width: 350px;
    max-width: 85vw;
    height: calc(100vh - 100px); /* Leave space at top and bottom */
    max-height: 600px; /* Cap the maximum height */
    background: var(--background-primary);
    /* Fallback for browsers without backdrop-filter support */
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    /* Use CSS custom property if available, fallback to white */
    background: var(--background-primary, rgba(255, 255, 255, 0.98));
    border: 2px solid var(--primary-color);
    border-radius: 12px 0 0 12px;
    box-shadow: -5px 5px 20px rgba(0, 0, 0, 0.4), 
                inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    z-index: 1050;
    transition: right 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    /* Ensure full opacity */
    opacity: 1;
}

.side-panel.active {
    right: 20px; /* Leave margin from edge */
    box-shadow: -8px 8px 25px rgba(0, 0, 0, 0.5),
                inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

/* Side Panel Header */
.side-panel-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--secondary-color);
    flex-shrink: 0;
    border-radius: 10px 0 0 0;
}

.side-panel-header h5 {
    margin: 0;
    font-weight: 600;
}

.side-panel-header .btn {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.25rem 0.5rem;
}

.side-panel-header .btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

/* Side Panel Content */
.side-panel-content {
    flex: 1;
    padding: 0;
    overflow-y: auto;
    background: var(--background-primary);
    /* Ensure content background is fully opaque */
    position: relative;
}

.side-panel-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--background-primary);
    z-index: -1;
}

/* =============================================================================
   MENU SECTIONS
   ============================================================================= */

.menu-section {
    border-bottom: 1px solid var(--border-color);
    background: var(--background-primary);
    position: relative;
}

.menu-section:last-child {
    border-bottom: none;
}

.menu-section-title {
    background: var(--background-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.875rem 1.5rem 0.625rem;
    margin: 0;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    opacity: 1;
    /* Ensure full text visibility */
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
    position: relative;
    z-index: 1;
}

.menu-section-title .bi {
    color: var(--secondary-color);
}

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

.menu-list li {
    border-bottom: 1px solid var(--border-color);
}

.menu-list li:last-child {
    border-bottom: none;
}

.menu-list a {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
    position: relative;
    background-color: var(--background-primary);
    opacity: 1;
    /* Ensure maximum text contrast */
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.3);
    z-index: 1;
}

.menu-list a:hover {
    background-color: var(--background-hover);
    color: var(--primary-color);
    transform: translateX(4px);
    /* Strengthen text on hover */
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

/* Active page indicator */
.menu-list a.active {
    background-color: rgba(75, 44, 59, 0.15);
    color: var(--primary-color);
    font-weight: 600;
    /* Enhanced text visibility for active items */
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.6);
}

.menu-list a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--primary-color);
}

.menu-list a .bi {
    margin-right: 0.75rem;
    font-size: 1.1em;
    width: 1.2em;
    text-align: center;
    color: var(--secondary-color);
    transition: color 0.2s ease;
}

.menu-list a:hover .bi,
.menu-list a.active .bi {
    color: var(--primary-color);
}

/* Special styling for logout link */
.menu-list a.text-danger:hover {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--bs-danger);
}

.menu-list a.text-danger:hover .bi {
    color: var(--bs-danger);
}

/* Special styling for login link */
.menu-list a.text-success:hover {
    background-color: rgba(25, 135, 84, 0.1);
    color: var(--bs-success);
}

.menu-list a.text-success:hover .bi {
    color: var(--bs-success);
}

/* =============================================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================================= */

/* Tablet and Mobile - Larger but still bounded panel */
@media (max-width: 991.98px) {
    .side-panel {
        width: 90vw;
        max-width: 400px;
        right: -100%;
        top: 70px;
        height: calc(100vh - 90px);
        max-height: 700px;
    }
    
    .side-panel.active {
        right: 5vw;
    }
    
    /* Hide wide-screen nav links on mobile */
    .navbar-nav.d-none.d-lg-flex {
        display: none !important;
    }
    
    .menu-list a {
        padding: 1.125rem 1.5rem;
        font-size: 1.05rem;
    }
    
    .menu-section-title {
        padding: 1rem 1.5rem 0.875rem;
        font-size: 0.9rem;
    }
}

/* Small Mobile */
@media (max-width: 575.98px) {
    .side-panel {
        width: 95vw;
        max-width: 320px;
        top: 60px;
        height: calc(100vh - 80px);
        max-height: 600px;
    }
    
    .side-panel.active {
        right: 2.5vw;
    }
    
    .side-panel-header {
        padding: 0.875rem 1.25rem;
    }
    
    .menu-list a {
        padding: 1rem 1.25rem;
        font-size: 1rem;
    }
    
    .menu-section-title {
        padding: 0.875rem 1.25rem 0.75rem;
        font-size: 0.85rem;
    }
    
    /* Make navbar text smaller on very small screens */
    .navbar-text {
        font-size: 0.9rem;
    }
}

/* =============================================================================
   ANIMATIONS AND TRANSITIONS
   ============================================================================= */

/* Smooth scrolling for side panel */
.side-panel {
    scroll-behavior: smooth;
}

/* Fade in animation for menu items */
.side-panel.active .menu-list a {
    animation: fadeInUp 0.3s ease forwards;
    opacity: 0;
    transform: translateY(10px);
}

.side-panel.active .menu-list li:nth-child(1) a { animation-delay: 0.1s; }
.side-panel.active .menu-list li:nth-child(2) a { animation-delay: 0.15s; }
.side-panel.active .menu-list li:nth-child(3) a { animation-delay: 0.2s; }
.side-panel.active .menu-list li:nth-child(4) a { animation-delay: 0.25s; }
.side-panel.active .menu-list li:nth-child(5) a { animation-delay: 0.3s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =============================================================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================================================= */

/* Focus states */
.menu-toggle:focus,
.side-panel-header .btn:focus,
.menu-list a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .side-panel {
        border-left: 2px solid var(--text-primary);
    }
    
    .menu-list a {
        border-bottom: 1px solid var(--text-primary);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .side-panel,
    .side-panel-overlay,
    .menu-list a,
    .menu-toggle {
        transition: none;
    }
    
    .side-panel.active .menu-list a {
        animation: none;
        opacity: 1;
        transform: none;
    }
}