/* ###################################################################################################### */
/* CSS Variables - Modern Professional Theme */
:root {
    /* Typography & Layout */
    --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-family-mono: 'SF Mono', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace;
    --line-height: 1.6;
    --margin: 20px;

    /* Modern Professional Color Palette */
    --primary-color: #2563EB;           
    --primary-hover: #1D4ED8;           
    --secondary-color: #7C3AED;         
    --accent-color: #059669;            
    --accent-primary: #3B82F6;
    --warning-color: #D97706;           
    --danger-color: #DC2626;            
    
    /* Light professional backgrounds */
    --background-primary: #FAFBFC;      
    --background-secondary: #F8FAFC;    
    --background-tertiary: #F1F5F9;     
    --surface-primary: #FFFFFF;         
    --surface-secondary: #F8FAFC;       
    --surface-hover: #F1F5F9;           
    
    /* Subtle glass effect */
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(148, 163, 184, 0.2);
    --glass-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --glass-backdrop: blur(16px);
    
    /* Professional Text Colors */
    --text-primary: #0F172A;            
    --text-secondary: #475569;          
    --text-tertiary: #94A3B8;           
    --text-inverse: #FFFFFF;            
    
    /* Subtle Border & Shadow System */
    --border-color: rgba(148, 163, 184, 0.2);
    --border-radius: 12px;              
    --border-radius-sm: 6px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Professional shadow system */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 24px rgba(37, 99, 235, 0.2);

    /* Card System */
    --card-bg: var(--surface-primary);
    --card-border: var(--border-color);
    --card-shadow: var(--shadow-sm);
    --card-hover-shadow: var(--shadow-lg);
    --card-hover-transform: translateY(-4px);
    --card-padding: 24px;               
    --card-inner-spacing: 16px;         
    
    /* Transparent Navbar - Blends with background */
    --navbar-bg: rgba(250, 251, 252, 0.8); 
    --navbar-backdrop: blur(20px);
    --navbar-border: rgba(148, 163, 184, 0.1);
    --navbar-text: var(--text-primary);
    --navbar-height: 64px;
    --navbar-margin: 16px;              
    
    /* Smooth Professional Animations */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-normal: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* Z-index scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-notification: 9999;

    /* Professional spacing scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
}

/* ###################################################################################################### */
/* Reset and Base Styles */
*,
*::before,
*::after { 
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--background-primary) 0%, var(--background-secondary) 100%);
    background-attachment: fixed;
    padding-top: 0;
    opacity: 0;
    transition: opacity var(--transition-slow);
    overflow-x: hidden;
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-weight: 400;
    letter-spacing: -0.01em;
}

body.loaded {
    opacity: 1;
}

/* Modern minimal scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--background-secondary);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--secondary-color));
}

::-webkit-scrollbar-corner {
    background: var(--background-secondary);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--background-secondary);
}

/* ###################################################################################################### */
/* Professional Navbar - Seamlessly Blends with Background */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    height: var(--navbar-height);
    background: var(--navbar-bg);
    backdrop-filter: var(--navbar-backdrop);
    -webkit-backdrop-filter: var(--navbar-backdrop);
    border-bottom: 1px solid var(--navbar-border);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
    display: flex;
    align-items: center;
    overflow: visible;
}

.navbar.scrolled {
    background: rgba(248, 250, 252, 0.95);
    box-shadow: var(--shadow-md);
    border-bottom-color: rgba(148, 163, 184, 0.2);
}

.navbar .container-fluid {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    overflow: visible;
}

.navbar .navbar-nav {
    height: 100%;
    display: flex;
    align-items: center;
    margin: 0;
    gap: var(--space-1);
    padding: 0;
    overflow: visible;
}

.navbar .navbar-nav.me-auto {
    flex-grow: 1;
    justify-content: flex-start;
    min-width: 0;
}

.navbar .d-flex.flex-row {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: var(--space-3) !important;
    height: 100% !important;
    flex-shrink: 0 !important;
    overflow: visible !important;
    max-width: none !important;
}

.navbar .d-flex.flex-row .nav-item,
.navbar .d-flex.flex-row .websocket-status {
    flex-shrink: 0;
    white-space: nowrap;
    overflow: visible;
}

.navbar .nav-link {
    white-space: nowrap;
    text-overflow: ellipsis;
}

.navbar .dropdown-menu {
    z-index: calc(var(--z-fixed) + 10);
    position: absolute;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--navbar-text) !important;
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    height: 100%;
}

.navbar-brand:hover {
    color: var(--primary-color) !important;
    transform: translateX(2px);
}

.brand-text {
    font-weight: 600;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.navbar-logo {
    max-height: 32px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-normal);
    border-radius: var(--border-radius-sm);
}

.navbar-brand:hover .navbar-logo {
    transform: scale(1.05);
}

/* Professional Nav Links */
.nav-link {
    color: var(--navbar-text) !important;
    font-weight: 500;
    font-size: 0.875rem;
    padding: var(--space-2) var(--space-4) !important;
    margin: 0 var(--space-1);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    height: auto;
    line-height: 1.4;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--primary-color) !important;
    background: rgba(37, 99, 235, 0.05);
    transform: translateY(-1px);
}

.nav-link.active {
    color: var(--primary-color) !important;
    background: rgba(37, 99, 235, 0.08);
}

.nav-link.active::after {
    width: 80%;
}

/* Special auth links */
.login-link, .logout-link, .admin-link {
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--border-radius-lg);
}

.login-link:hover, .logout-link:hover, .admin-link:hover {
    background: var(--primary-color);
    color: white !important;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* ###################################################################################################### */
/* Professional Dropdown */
.dropdown-menu {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border) !important;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--glass-shadow);
    padding: var(--space-3);
    margin-top: var(--space-2);
    min-width: 200px;
    animation: dropdown-appear 0.25s var(--transition-normal);
}

@keyframes dropdown-appear {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.dropdown-item {
    color: var(--text-primary) !important;
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-1);
    position: relative;
    overflow: hidden;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: var(--primary-color) !important;
    color: white !important;
    transform: translateX(4px);
}

/* Dropdown submenu */
.dropdown-submenu {
    position: relative;
}

.dropdown-submenu-menu {
    position: absolute;
    left: 100%;
    top: 0;
    background: var(--glass-bg) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--glass-shadow);
    padding: var(--space-3);
    min-width: 180px;
    display: none;
}

.dropdown-submenu-menu.show {
    display: block;
    animation: dropdown-appear 0.25s var(--transition-normal);
}

/* Professional Mobile Toggle */
.navbar-toggler {
    border: none;
    padding: var(--space-2);
    background: rgba(37, 99, 235, 0.08);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    border: 1px solid rgba(37, 99, 235, 0.15);
    height: auto;
    display: flex;
    align-items: center;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    outline: none;
}

.navbar-toggler:hover {
    background: rgba(37, 99, 235, 0.12);
    transform: scale(1.02);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ###################################################################################################### */
/* WebSocket Status */
.websocket-status {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    padding: var(--space-2) var(--space-3);
    margin-right: var(--space-3);
    opacity: 0.8;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius-lg);
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid rgba(148, 163, 184, 0.15);
    display: flex;
    align-items: center;
    height: auto;
}

.websocket-status.websocket-active {
    color: var(--accent-color);
    opacity: 1;
    animation: pulse-subtle 3s infinite;
    box-shadow: 0 0 12px rgba(5, 150, 105, 0.2);
}

@keyframes pulse-subtle {
    0%, 100% { 
        opacity: 1; 
        box-shadow: 0 0 12px rgba(5, 150, 105, 0.2);
    }
    50% { 
        opacity: 0.9; 
        box-shadow: 0 0 16px rgba(5, 150, 105, 0.3);
    }
}

/* ###################################################################################################### */
/* Main Content */
.main-content {
    margin-top: calc(var(--navbar-height) + var(--space-6));
    padding: var(--space-8) var(--space-6);
    min-height: calc(100vh - calc(var(--navbar-height) + var(--space-12)));
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ###################################################################################################### */
/* Professional Notifications */
.notification-toast {
    position: fixed;
    top: calc(var(--navbar-height) + var(--space-6));
    right: var(--space-6);
    z-index: var(--z-notification);
    max-width: 380px;
}

.notification-enhanced {
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    animation: notification-slide 0.4s var(--transition-normal);
}

@keyframes notification-slide {
    from {
        transform: translateX(100%) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
}

.toast {
    border-radius: var(--border-radius-lg);
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none; /* hidden by default */
    align-items: center;
    justify-content: center;
    z-index: 2000;
}
.modal-content {
    background: #fff;
    padding: 1.5rem;
    border-radius: 0.75rem;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}
.modal-content h5 {
    margin-bottom: 1rem;
}
.modal-content label {
    display: block;
    margin-top: 0.75rem;
    font-weight: 500;
}
.modal-content input {
    width: 100%;
    padding: 0.5rem;
    margin-top: 0.25rem;
    border: 1px solid #ccc;
    border-radius: 0.5rem;
}
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1.5rem;
}
.modal-actions button {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
}
.modal-actions button[type="submit"] {
    background: #007bff;
    color: #fff;
}
.modal-actions button#cancelModalBtn {
    background: #ccc;
}

/* ###################################################################################################### */
/* Professional Article Grid */
.article-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-8);
    padding: var(--space-6) 0;
    width: 100%;
}

/* Card Sizes */
.article-size-small {
    flex: 1 1 calc((100% / 3) - var(--space-8));
    min-width: 250px;
}

.article-size-medium {
    flex: 1 1 calc((100% / 2) - var(--space-8));
    min-width: 400px;
}

.article-size-large {
    flex: 1 1 100%;
}

/* Article Card Styling */
.article, .article-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
    position: relative;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    height: 100%;
    cursor: grab;
}

.article-card:active {
    cursor: grabbing;
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.article-card:hover {
    transform: var(--card-hover-transform);
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-color);
}

/* Container adjustments for full-width articles */
.article-container.full-width-mode {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 100%;
}

/* Full-width page adjustments */
.full-width-page {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
}

/* Individual full-width article styling */
.article-card.full-width {
    width: 100% !important;      /* override any fixed widths */
    max-width: 100% !important;
    height: auto !important;      /* allow height to adjust to content */
    margin: 0 auto;               /* center horizontally */
    display: block !important;
}

/* Admin controls position */
.admin-controls {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 100;
}

/* Responsive content inside the article */
.article-card.full-width .article-content {
    padding: 20px;
    box-sizing: border-box;
    width: 100%;
}


/* Center Editor.js Content */
.article-size-small .ce-block__content,
.article-size-medium .ce-block__content,
.article-size-large .ce-block__content {
    max-width: 90%; /* keeps spacing left and right */
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

/* Optional: adjust max-width per size for more control */
.article-size-small .ce-block__content { max-width: 400px; }
.article-size-medium .ce-block__content { max-width: 600px; }
.article-size-large .ce-block__content { max-width: 800px; }

.article-thumbnail {
  width: 100%;            /* full width of parent or adjust */
  max-width: 200px;       /* optional max width */
  margin: 0 auto 16px;    /* centers the thumbnail horizontally, adds bottom spacing */
  border-radius: 12px;
  overflow: hidden;
  background: #f5f5f5;    /* fallback background */

  display: flex;
  align-items: center;     /* vertical centering if img is smaller */
  justify-content: center; /* horizontal centering */
}

.article-thumbnail img {
  width: 100%;
  height: auto;           /* preserves aspect ratio */
  object-fit: contain;    /* fully shows image without cropping */
  display: block;
}

/* Hover zoom effect */
.article-thumbnail:hover img {
  transform: scale(1.05);
  filter: brightness(1.05);
}

/* Placeholder when image fails */
.thumbnail-placeholder {
  width: 100%;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  background: var(--background-muted);
  border-radius: var(--radius-lg);
}


/* ############################# Admin Controls ############################# */
.admin-controls {
    display: flex;
    gap: var(--space-2); /* spacing between buttons */
    position: absolute; /* overlay top-right of card/article */
    top: var(--space-3);
    right: var(--space-3);
    z-index: var(--z-modal); /* above content */
}

/* Base button styling */
.admin-btn {
    background: rgba(37, 99, 235, 0.08); /* subtle base background */
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--border-radius-lg);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-xs);
    position: relative;
}

.admin-btn span {
    display: inline-block;
    line-height: 1;
    pointer-events: none;
}

/* Hover effect */
.admin-btn:hover {
    transform: translateY(-1px) scale(1.05);
    box-shadow: var(--shadow-md);
}

/* Edit button specific styling */
.admin-btn.edit-btn {
    background: rgba(16, 185, 129, 0.08); /* subtle green */
    border-color: rgba(16, 185, 129, 0.2);
}

.admin-btn.edit-btn:hover {
    background: var(--accent-color);
    color: white;
}

/* Settings button specific styling */
.admin-btn.settings-btn {
    background: rgba(124, 58, 237, 0.08); /* subtle purple */
    border-color: rgba(124, 58, 237, 0.2);
}

.admin-btn.settings-btn:hover {
    background: var(--secondary-color);
    color: white;
}

/* Optional: Tooltip on hover */
.admin-btn[title]::after {
    content: attr(title);
    position: absolute;
    top: -30px;
    right: 50%;
    transform: translateX(50%);
    background: var(--surface-primary);
    color: var(--text-primary);
    padding: 4px 8px;
    font-size: 0.75rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.admin-btn[title]:hover::after {
    opacity: 1;
}

/* Article Link */
.article-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.article-link.disabled {
    cursor: default;
    pointer-events: none;
}

/* Article Content */
.article-content {
    padding: var(--card-padding);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(248, 250, 252, 0.95) 100%);
    overflow: hidden;
    min-height: 0;
}



/* Add Article Button */
.add-article-btn {
    font-size: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--primary-color, #2563eb);
    color: #fff;
    cursor: pointer;
    margin-top: 16px;
}

/* Save Notification */
.save-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #2563eb;
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s;
}

.save-notification.show { opacity: 1; }

.save-notification.error { background: #dc2626; }


/* EditorJS Centered Content */
.codex-editor__redactor {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
    box-sizing: border-box;
}

.codex-editor__redactor .ce-block__content {
    width: 100%;
    max-width: 750px;
    padding-left: 0;
    padding-right: 0;
}

.codex-editor__redactor .ce-paragraph,
.codex-editor__redactor .ce-header {
    text-align: left;
    padding-left: 0;
    padding-right: 0;
}

/* EditorJS Viewer Container */
.editorjs-viewer {
    flex-grow: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: var(--space-2);
    margin-right: -var(--space-2);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) transparent;
}

.editorjs-viewer::-webkit-scrollbar {
    width: 4px;
}

.editorjs-viewer::-webkit-scrollbar-track {
    background: transparent;
}

.editorjs-viewer::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 2px;
    opacity: 0.6;
}

.editorjs-viewer::-webkit-scrollbar-thumb:hover {
    opacity: 1;
}

/* Professional Content Spacing */
.editorjs-viewer .ce-block {
    margin-bottom: var(--card-inner-spacing);
    color: var(--text-primary);
    line-height: 1.6;
}

.editorjs-viewer .ce-block:last-child {
    margin-bottom: 0;
}

.editorjs-viewer > *:first-child {
    margin-top: 0;
}

.editorjs-viewer > *:last-child {
    margin-bottom: 0;
}

/* Professional Typography */
.editorjs-viewer h1, 
.editorjs-viewer h2, 
.editorjs-viewer h3,
.editorjs-viewer h4,
.editorjs-viewer h5,
.editorjs-viewer h6 {
    color: var(--text-primary);
    margin: var(--space-5) 0 var(--space-3) 0;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.025em;
}

.editorjs-viewer h1 { font-size: 1.875rem; }
.editorjs-viewer h2 { font-size: 1.625rem; }
.editorjs-viewer h3 { font-size: 1.375rem; }
.editorjs-viewer h4 { font-size: 1.125rem; }
.editorjs-viewer h5 { font-size: 1rem; }
.editorjs-viewer h6 { font-size: 0.9375rem; }

.editorjs-viewer p {
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
    word-wrap: break-word;
    hyphens: auto;
    text-align: left;
}

/* Professional Lists */
.editorjs-viewer ul,
.editorjs-viewer ol {
    color: var(--text-primary);
    margin: var(--space-4) 0;
    padding-left: var(--space-5);
}

.editorjs-viewer li {
    margin-bottom: var(--space-2);
    line-height: 1.5;
    word-wrap: break-word;
}

/* Professional Blockquotes */
.editorjs-viewer blockquote {
    border-left: 3px solid var(--primary-color);
    background: rgba(37, 99, 235, 0.04);
    padding: var(--space-5);
    margin: var(--space-5) 0;
    font-style: italic;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    color: var(--text-secondary);
    position: relative;
}

.editorjs-viewer blockquote::before {
    content: '"';
    font-size: 2.5rem;
    color: var(--primary-color);
    font-family: Georgia, serif;
    line-height: 1;
    margin-right: var(--space-3);
    float: left;
    opacity: 0.6;
}

/* Professional Code */
.editorjs-viewer code {
    background: var(--surface-secondary);
    color: var(--accent-color);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-mono);
    font-size: 0.875rem;
    word-wrap: break-word;
}

.editorjs-viewer pre {
    background: var(--surface-secondary);
    color: var(--text-primary);
    padding: var(--space-5);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: var(--space-5) 0;
    border: 1px solid var(--border-color);
    max-height: 280px;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--surface-secondary);
}

.editorjs-viewer pre::-webkit-scrollbar {
    height: 4px;
}

.editorjs-viewer pre::-webkit-scrollbar-track {
    background: var(--surface-secondary);
}

.editorjs-viewer pre::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 2px;
}

.editorjs-viewer pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Professional Images */
.editorjs-viewer img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
    margin: var(--space-4) 0;
}

.editorjs-viewer img:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-md);
}

/* Professional Tables */
.editorjs-viewer table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin: var(--space-5) 0;
    overflow-x: auto;
    display: block;
}

.editorjs-viewer table tbody,
.editorjs-viewer table thead,
.editorjs-viewer table tfoot {
    display: table;
    width: 100%;
}

.editorjs-viewer table th,
.editorjs-viewer table td {
    border: 1px solid var(--border-color);
    padding: var(--space-3);
    color: var(--text-primary);
    text-align: left;
    word-wrap: break-word;
}

.editorjs-viewer table th {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 600;
}

.editorjs-viewer table tbody tr:hover td {
    background-color: rgba(37, 99, 235, 0.04);
}

/* EditorJS toolbars */
/* Base toolbar (container for + and ⋮) */
.ce-toolbar {
  position: absolute;
  left: -100px;
  top: 0;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
  z-index: var(--z-dropdown);
}

/* Open state: styled panel */
.ce-toolbar--opened {
  background: var(--surface-primary) !important;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: 6px; /* spacing inside the menu */
}

/* Inline formatting toolbar */
.ce-inline-toolbar {
  background: var(--surface-primary) !important;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

/* Block settings (⋮) menu */
.ce-settings {
  background: var(--surface-primary) !important;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

/* Block conversion menu (paragraph -> heading, list, etc.) */
.ce-conversion-toolbar {
  background: var(--surface-primary) !important;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

/* Toolbar buttons (+, ⋮, inline buttons, etc.) */
.ce-toolbar__plus,
.ce-toolbar__settings-btn,
.ce-inline-toolbar button,
.ce-settings button,
.ce-conversion-toolbar__item {
  color: var(--text-primary) !important;
  background: transparent !important;
  transition: background var(--transition-fast), color var(--transition-fast);
  border-radius: var(--border-radius-sm);
}

/* Hover state for buttons */
.ce-toolbar__plus:hover,
.ce-toolbar__settings-btn:hover,
.ce-inline-toolbar button:hover,
.ce-settings button:hover,
.ce-conversion-toolbar__item:hover {
  background: var(--primary-color) !important;
  color: #fff !important;
}

/* ###################################################################################################### */
/* Codex */
.codex-editor__redactor {
    align-items: stretch !important;
}

.ce-popover {
    background: var(--surface-primary) !important;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-modal);
}

.ce-popover-item {
    color: var(--text-primary) !important;
}

.ce-popover-item:hover {
    background: rgba(37, 99, 235, 0.08) !important;
    color: var(--primary-color) !important;
}

/* ###################################################################################################### */
/* Professional Loading States */
.loading {
    text-align: center;
    padding: var(--space-16) 0;
    color: var(--text-secondary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
}

.loading::after {
    content: '';
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 2px solid var(--surface-secondary);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin-professional 1s linear infinite;
}

@keyframes spin-professional {
    to { transform: rotate(360deg); }
}

.no-articles {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    color: var(--text-secondary);
    font-size: 1rem;
    background: var(--surface-primary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    margin: var(--space-6) 0;
}

.no-articles::before {
    content: '📄';
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--space-3);
    opacity: 0.6;
}

/* ###################################################################################################### */
/* Professional Error States */
.error-message {
    text-align: center;
    padding: var(--space-10) var(--space-6);
    color: var(--danger-color);
    background: linear-gradient(135deg, 
        rgba(220, 38, 38, 0.04) 0%, 
        rgba(220, 38, 38, 0.08) 100%);
    border: 2px solid rgba(220, 38, 38, 0.15);
    border-radius: var(--border-radius-lg);
    margin: var(--space-6) 0;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
}

.error-message::before {
    content: 'âš ';
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--space-3);
    animation: pulse-error 2s infinite;
}

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

/* ###################################################################################################### */
/* Professional Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: var(--border-radius-lg);
    padding: var(--space-3) var(--space-5);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
    letter-spacing: -0.01em;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s var(--bounce);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.05);
    color: white;
    text-decoration: none;
}

/* Button container: fixed at bottom-right and aligns buttons horizontally */
.button-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    display: flex;
    gap: var(--space-3); /* spacing between buttons */
    z-index: var(--z-fixed);
}

/* ############################# Base button style ############################# */
.save-button {
    position: relative; /* for ::before hover overlay */
    overflow: hidden;   /* prevents pseudo-element from spilling outside */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    letter-spacing: -0.01em;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: white;
}

/* Hover gradient overlay */
.save-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s var(--bounce);
}

.save-button:hover::before {
    left: 100%;
}

/* Hover effect */
.save-button:hover {
    transform: translateY(-2px) scale(1.02);
    filter: brightness(1.05);
}

/* Disabled state */
.save-button:disabled {
    background: var(--surface-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
    filter: none;
    opacity: 0.6;
}

.save-button:disabled::before {
    display: none;
}

/* ############################# Specific button colors ############################# */

/* Save button (green/brand) */
.save-button.save-button {
    background: linear-gradient(135deg, var(--accent-color), #047857);
}

.save-button.save-button:hover {
    box-shadow: var(--shadow-lg), 0 0 24px rgba(5, 150, 105, 0.3);
}

/* Cancel button (gray) */
.save-button.cancel-button {
    background: linear-gradient(135deg, #6b7280, #4b5563);
}

.save-button.cancel-button:hover {
    box-shadow: var(--shadow-lg), 0 0 24px rgba(107, 114, 128, 0.3);
}

/* Delete button (red) */
.save-button.delete-button {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
}

.save-button.delete-button:hover {
    box-shadow: var(--shadow-lg), 0 0 24px rgba(220, 38, 38, 0.3);
}

/* ############################# Mobile responsiveness ############################# */
@media (max-width: 640px) {
    .button-container {
        flex-direction: column; /* stack buttons vertically */
        bottom: var(--space-4);
        right: var(--space-4);
    }
    .save-button {
        width: 100%; /* full width on mobile */
        justify-content: center;
    }
}

/* + Button */
.add-article-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background-color: #007bff;
    color: white;
    font-size: 2rem;
    font-weight: bold;
    border: none;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    cursor: pointer;
    transition: background 0.2s ease;
    z-index: 1000;
}
.add-article-btn:hover {
    background-color: #0056b3;
}

/* ###################################################################################################### */
/* Professional Editor */
.editor-container {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    min-height: 380px;
    background: var(--surface-primary);
    margin-bottom: var(--space-6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.editor-container:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.editor-container.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.editor-container.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 32px;
    height: 32px;
    margin: -16px 0 0 -16px;
    border: 3px solid rgba(37, 99, 235, 0.2);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin-professional 1s linear infinite;
}

/* ###################################################################################################### */
/* Professional Footer */
.footer {
    background: linear-gradient(135deg, var(--background-primary) 0%, var(--background-secondary) 100%);
    color: var(--text-secondary);
    padding: var(--space-10) var(--space-6);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.footer-social a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.125rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal), color var(--transition-normal);
}

.footer-social a:hover {
    transform: scale(1.2);
    color: var(--primary-color);
}

.footer-text {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

/* ###################################################################################################### */
/* Professional Forms */
.form-control {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-3);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
    background: var(--surface-primary);
    color: var(--text-primary);
    width: 100%;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    color: var(--text-primary);
    background: var(--surface-secondary);
}

.form-control::placeholder {
    color: var(--text-tertiary);
    opacity: 0.8;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    font-size: 0.875rem;
    letter-spacing: -0.01em;
    display: block;
}

/* ###################################################################################################### */
/* Professional Responsive Design */
@media (max-width: 1400px) {
    .article-container {
        grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
        gap: var(--space-6);
    }
}

@media (max-width: 1200px) {
    .article-container {
        grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
        gap: var(--space-5);
    }
    
    .container {
        padding: 0 var(--space-4);
    }
}

@media (max-width: 991px) {
    :root {
        --card-padding: 20px;
        --card-inner-spacing: 14px;
    }
    
    .navbar-collapse {
        background: var(--glass-bg);
        border-radius: var(--border-radius-lg);
        margin-top: var(--space-3);
        padding: var(--space-5);
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--glass-border);
        backdrop-filter: var(--glass-backdrop);
        -webkit-backdrop-filter: var(--glass-backdrop);
    }
    
    .dropdown-menu {
        background: var(--surface-secondary) !important;
        margin: var(--space-2) 0;
        border: 1px solid var(--border-color);
        position: static !important;
        transform: none !important;
        box-shadow: none !important;
        width: 100% !important;
    }
    
    .dropdown-item {
        color: var(--text-primary) !important;
    }
    
    .navbar-nav .nav-link {
        padding: var(--space-3) !important;
        margin: var(--space-1) 0;
        border-bottom: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        display: block;
        width: 100%;
    }
    
    .navbar-nav .nav-link:last-child {
        border-bottom: none;
    }
    
    .main-content {
        margin-top: calc(var(--navbar-height) + var(--space-8));
        padding: var(--space-5) var(--space-4);
    }
    
    .save-button {
        bottom: var(--space-5);
        right: var(--space-5);
        padding: var(--space-3) var(--space-4);
    }
    
    .article-container {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --card-padding: 18px;
        --card-inner-spacing: 12px;
    }
    
    .article-container {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }
    
    .main-content {
        padding: var(--space-4) var(--space-3);
    }
    
    .notification-toast {
        right: var(--space-3);
        left: var(--space-3);
        top: calc(var(--navbar-height) + var(--space-5));
        max-width: none;
    }
    
    .editorjs-viewer h1 { font-size: 1.625rem; }
    .editorjs-viewer h2 { font-size: 1.375rem; }
    .editorjs-viewer h3 { font-size: 1.125rem; }
}

@media (max-width: 576px) {
    :root {
        --card-padding: 16px;
        --card-inner-spacing: 10px;
    }
    
    .navbar-logo {
        max-height: 28px;
    }
    
    .brand-text {
        font-size: 0.9375rem;
    }
    
    .save-button {
        bottom: var(--space-4);
        right: var(--space-4);
        padding: var(--space-3) var(--space-4);
        font-size: 0.8125rem;
    }
    
    .article-container {
        gap: var(--space-4);
    }
    
    .editorjs-viewer h1 { font-size: 1.375rem; }
    .editorjs-viewer h2 { font-size: 1.25rem; }
    .editorjs-viewer h3 { font-size: 1rem; }
    
    .loading {
        padding: var(--space-12) 0;
        font-size: 0.9375rem;
    }
    
    .no-articles {
        padding: var(--space-12) var(--space-5);
        font-size: 0.9375rem;
    }
}

/* ###################################################################################################### */
/* Professional Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

.nav-link:focus,
.dropdown-item:focus,
.btn:focus,
.form-control:focus,
.article-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.article-link:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--border-radius-lg);
}

@media (prefers-contrast: high) {
    :root {
        --navbar-bg: #FFFFFF;
        --navbar-text: #000000;
        --text-primary: #000000;
        --background-primary: #FFFFFF;
        --border-color: #000000;
        --primary-color: #0000FF;
        --surface-primary: #FFFFFF;
        --surface-secondary: #F0F0F0;
    }
}

/* ###################################################################################################### */
/* Professional Performance Optimizations */
.article-card {
    contain: layout style paint;
    will-change: transform;
    transform: translateZ(0);
}

.article-card img {
    contain: layout style paint;
}

.navbar,
.save-button {
    transform: translateZ(0);
}

.article-container {
    contain: layout style paint;
}

/* ###################################################################################################### */
/* Professional Animation Keyframes */
@keyframes fade-in-professional {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card {
    animation: fade-in-professional 0.5s ease-out;
}