/**
 * Responsive Side Menu Styles
 * Task #2 Implementation
 * 
 * Breakpoints:
 * - Desktop: > 992px
 * - Tablet: 480px - 992px  
 * - Mobile: <= 480px
 */

/* CSS Variables for consistent styling */
:root {
    --side-menu-width: 400px;
    --side-menu-bg: #F2F2F2;
    --side-menu-border: #CCCCCC;
    --side-menu-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition-duration: 0.3s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --header-height: 60px;
    --z-index-side-menu: 1000;
    --z-index-overlay: 999;
}

/* Side Menu Container */
#issue-side-menu {
    position: fixed;
    left: 0;
    width: var(--side-menu-width);
    height: 100vh;
    background-color: var(--side-menu-bg);
    border-right: 1px solid var(--side-menu-border);
    box-shadow: var(--side-menu-shadow);
    z-index: var(--z-index-side-menu);
    transform: translateX(-100%);
    transition: transform var(--transition-duration) var(--transition-easing);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
}

/* Side Menu Header */
.side-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--side-menu-border);
    background-color: #f8f9fa;
    position: sticky;
    top: 0;
    z-index: 10;
}

.side-menu-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
    color: #333;
}

/* Close Button */
.side-menu-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: background-color 0.2s;
    color: #666;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.side-menu-close:hover {
    background-color: #e9ecef;
    color: #333;
}

.side-menu-close:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Side Menu Content */
.side-menu-content {
    padding: 1rem;
}

/* Article List */
.side-menu-articles {
    list-style: none;
    padding: 0;
    margin: 0;
}

.side-menu-article-item {
    margin-bottom: 0.75rem;
}

.side-menu-article-link {
}
.side-menu-article-link a {
  text-align: left;
}

.side-menu-article-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
    line-height: 1.3;
}

.side-menu-article-meta {
    font-size: 0.8rem;
    color: #666;
    margin: 0;
}

/* Main Content Wrapper */
.main-content-wrapper {
    transition: margin-left var(--transition-duration) var(--transition-easing);
    min-height: 100vh;
    width: 100%;
    box-sizing: border-box;
}

/* Overlay for mobile/tablet when menu is open */
.side-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-index-overlay);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-duration) var(--transition-easing),
                visibility var(--transition-duration) var(--transition-easing);
}

/* Menu Toggle Button (for when menu is hidden) */
.side-menu-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.75rem;
    cursor: pointer;
    z-index: 1001;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
    transition: all 0.2s;
    font-size: 1rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.side-menu-toggle:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.4);
}

.side-menu-toggle:focus {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Hamburger Icon */
.hamburger-icon {
    display: flex;
    flex-direction: column;
    width: 18px;
    height: 14px;
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background-color: currentColor;
    margin: 1px 0;
    transition: transform 0.2s;
}

/* Desktop Styles (> 992px) */
@media (min-width: 993px) {
    /* Show side menu by default on desktop - fully visible */
    #issue-side-menu {
        transform: translateX(0);
    }
    
    /* When hidden on desktop, show 20% of the menu */
    #issue-side-menu.desktop-hidden {
        transform: translateX(-80%);
    }
    
    /* Main content takes full remaining width when side menu is visible */
    .main-content-wrapper {
        margin-left: var(--side-menu-width);
        width: calc(100vw - var(--side-menu-width));
    }
    
    /* When side menu is partially hidden, adjust main content to take remaining space */
    .main-content-wrapper.side-menu-partial {
        margin-left: calc(var(--side-menu-width) * 0.2);
        width: calc(100vw - (var(--side-menu-width) * 0.2));
    }
    
    /* Hide overlay on desktop */
    .side-menu-overlay {
        display: none;
    }
    
    /* Position toggle button on desktop - fixed position to prevent jumping */
    .side-menu-toggle {
        position: fixed;
        top: 1rem;
        left: calc(var(--side-menu-width) - 3rem);
        z-index: 1002;
    }
    
    /* Adjust toggle position when menu is partially hidden */
    body.side-menu-partial .side-menu-toggle {
        left: calc((var(--side-menu-width) * 0.2) - 1rem);
    }
}

/* Tablet Styles (480px - 992px) */
@media (min-width: 481px) and (max-width: 992px) {
    /* Reset desktop width constraints */
    .main-content-wrapper {
        margin-left: 0 !important;
        width: 100% !important;
    }
    
    /* Side menu slides in from left, partially visible by default */
    #issue-side-menu {
        transform: translateX(-80%);
        width: min(var(--side-menu-width), 85vw);
    }
    
    #issue-side-menu.tablet-visible {
        transform: translateX(0);
    }
    
    /* Show overlay when menu is fully open on tablet */
    .side-menu-overlay.visible {
        opacity: 1;
        visibility: visible;
    }
    
    /* Reset toggle button position for tablet */
    .side-menu-toggle {
        position: fixed;
        top: 1rem;
        left: 1rem;
    }
}

/* Mobile Styles (<= 480px) */
@media (max-width: 480px) {
    /* Reset desktop width constraints */
    .main-content-wrapper {
        margin-left: 0 !important;
        width: 100% !important;
    }
    
    /* Full width menu on mobile, hidden by default */
    #issue-side-menu {
        width: min(var(--side-menu-width), 90vw);
        transform: translateX(-100%);
    }
    
    #issue-side-menu.mobile-visible {
        transform: translateX(0);
    }
    
    /* Show overlay when menu is open on mobile */
    .side-menu-overlay.visible {
        opacity: 1;
        visibility: visible;
    }
    
    /* Smaller toggle button on mobile */
    .side-menu-toggle {
        position: fixed;
        width: 44px;
        height: 44px;
        top: 0.75rem;
        left: 0.75rem;
    }
    
    /* Reduce side menu padding on mobile */
    .side-menu-content {
        padding: 0.75rem;
    }
    
    .side-menu-header {
        padding: 0.75rem;
    }

}

/* States */
.side-menu-open #issue-side-menu {
    transform: translateX(0);
}

.side-menu-open .side-menu-overlay {
    opacity: 1;
    visibility: visible;
}
.side-menu-open #articles-main-container {
  margin-left: var(--side-menu-width);
  transition: margin-left 0.3s ease-in-out, width 0.3s ease-in-out;
}

.has-side-menu .oxy-header-wrapper {
  position: fixed;
  width: 100%;
  z-index: 999;
}
.has-side-menu .ct-inner-content {
  padding-top: 104px;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    #issue-side-menu,
    .main-content-wrapper,
    .side-menu-overlay,
    .side-menu-close,
    .side-menu-toggle,
    .hamburger-line {
        transition: none;
    }
}


/* Print styles */
@media print {
    #issue-side-menu,
    .side-menu-toggle,
    .side-menu-overlay {
        display: none !important;
    }
    
    .main-content-wrapper {
        margin-left: 0 !important;
    }
}