/* ================================================
   BASE RESET & VARIABLES
================================================== */

/* Dark mode variables */
:root {
    --bg-primary: #121212;
    --bg-primary-rgb: 18, 18, 18;
    --bg-secondary: #1e1e1e;
    --text-primary: #f0f0f0;
    --text-secondary: #b0b0b0;
    --text-btn: #fff;
    --text-code: #ff79c6;
    --border-radius: 8px;
    --border-color: #333;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --button-padding: 8px 12px;
    --button-gap: 8px;

    /* Button colors for dark mode */
    --btn-primary: #025df9;
    --btn-primary-hover: #0687ff;
    --link-color: #5dade2;
    --link-hover: #85c1e9;
    --btn-secondary: #757575;
    --btn-secondary-hover: #555555;
    --btn-success: #4caf50;
    --btn-success-hover: #388e3c;
    --btn-warning: #ff9800;
    --btn-warning-hover: #f57c00;
    --btn-danger: #f44336;
    --btn-danger-hover: #d32f2f;
    --btn-info: #2196f3;
    --btn-info-hover: #1976d2;
}

.light-mode {
    /* Light mode variables */
    --bg-primary: #f5f5f5;
    --bg-primary-rgb: 245, 245, 245;
    --bg-secondary: #e8e8e8;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-btn: #fff;
    --text-code: #ff79c6;
    --border-color: #333;

    /* Button colors for light mode */
    --btn-primary: #0255ee;
    --btn-primary-hover: #0128b3;
    --link-color: #0255ee;
    --link-hover: #0128b3;
    --btn-secondary: #757575;
    --btn-secondary-hover: #555555;
    --btn-success: #4caf50;
    --btn-success-hover: #388e3c;
    --btn-warning: #ff9800;
    --btn-warning-hover: #f57c00;
    --btn-danger: #f44336;
    --btn-danger-hover: #d32f2f;
    --btn-info: #2196f3;
    --btn-info-hover: #1976d2;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Base styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    padding: var(--spacing-xs);
    transition: background-color 0.3s, color 0.3s;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--link-hover);
}

/* ================================================
   LAYOUT & CONTAINER
================================================== */

/* Theme loading states - Critical for preventing flash */
body.theme-loading {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

body.theme-loading .content-container {
    visibility: hidden;
}

/* Ensure proper background color for all browsers during loading */
body:not(.theme-loading) {
    background-color: var(--bg-primary);
}

body.light-mode:not(.theme-loading),
body.dark-mode:not(.theme-loading) {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Ensure content visibility */
body:not(.theme-loading) .content-container {
    visibility: visible;
}

/* Force immediate background for all states */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.1s, color 0.1s;
}

/* Container - Single source of truth for layout */
.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Tablet and up: Add padding to account for fixed hamburger */
@media (min-width: 769px) {
    .content-container {
        padding-left: calc(var(--spacing-xs) + 24px + var(--spacing-xs));
    }
}

/* ================================================
   HEADER & NAVIGATION
================================================== */

/* Header styles */
.header-static {
    background-color: var(--bg-secondary);
    padding: 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xs);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-container h1 a {
    color: var(--text-primary);
    font-size: 1.5rem;
    text-decoration: none;
}

/* Header navigation */
.header-container nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.header-container nav ul li {
    margin: 0 0.5rem;
}

.header-container nav ul li a {
    color: var(--text-primary);
    transition: color 0.3s;
    padding: var(--spacing-xs);
    display: block;
    border-radius: 4px;
    line-height: 1.2;
    text-decoration: none;
}

.header-container nav ul li a:hover {
    color: var(--btn-primary-hover);
}

/* Header theme toggle */
.header-container .theme-toggle {
    position: static;
    width: auto;
    height: auto;
    border: none;
    background: transparent;
    margin-left: 1rem;
    cursor: pointer;
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.header-container .theme-toggle:hover {
    background: transparent;
    color: var(--btn-primary);
}

/* Hamburger menu for mobile */
.hamburger {
    display: none;
    flex-direction: column;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    justify-content: space-around;
    z-index: 100;
    border-radius: 4px;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* ================================================
   MAIN CONTENT & FOOTER
================================================== */

main {
    min-height: calc(100vh - 100px);
    padding: var(--spacing-xs);
    background-color: var(--bg-primary);
}

footer {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xs);
    margin-top: 2rem;
    border-top: 1px solid var(--bg-secondary);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xs);
    text-align: center;
}

/* ================================================
   HERO SECTION
================================================== */

.hero {
    text-align: center;
    padding: var(--spacing-sm) 0;
    margin-bottom: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ================================================
   BLOG LAYOUTS
================================================== */

/* Blog Two-Column Layout */
.blog-container {
    display: grid;
    grid-template-columns: 30% 70%;
    margin: var(--spacing-xs);
}

/* Reusable sidebar panel styles */
.sidebar-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
}

.sidebar-panel h3 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    max-height: 70vh;
}

.sidebar-content h4 {
    margin: 1rem 0 0.5rem 0;
    color: var(--text-primary);
}

.sidebar-content pre {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    overflow-x: auto;
    margin: 0.5rem 0;
}

.sidebar-content code {
    color: var(--text-code);
}

.blog-sidebar {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-xs);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.blog-sidebar h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.blog-sidebar p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.blog-content {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-xs);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.post-meta {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.post-content {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.post-content ul,
.post-content ol {
    margin-left: 1.6em;
    padding-left: 0;
}

.post-content li {
    margin-bottom: var(--spacing-xs);
}

.back-link {
    display: inline-block;
    color: var(--btn-primary);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
}

.back-link:hover {
    color: var(--btn-primary-hover);
    text-decoration: underline;
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.blog-post {
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
    transition: transform 0.3s, box-shadow 0.3s;
}

.blog-post:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.blog-post h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.blog-post h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.blog-post h3 a:hover {
    color: var(--btn-info-hover);
    text-decoration: none;
}

.read-more {
    display: inline-block;
    background-color: var(--btn-secondary);
    color: var(--text-btn);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-top: 0.5rem;
    transition: background-color 0.3s;
    border: 1px solid var(--btn-primary);
}

.read-more:hover {
    background-color: var(--btn-primary-hover);
}

/* Featured Posts */
.featured-posts {
    margin-top: var(--spacing-sm);
}

.featured-posts h2 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.featured-post {
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xs);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
}

.featured-post h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.featured-post h3 a {
    color: var(--text-primary);
}

.featured-post h3 a:hover {
    color: var(--btn-primary);
}

/* Blog Article */
.blog-article {
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
    margin: var(--spacing-md) auto;
    max-width: 100%;
}

/* Larger screens - more side margin from window edge */
@media (min-width: 1024px) {
    .blog-article {
        padding: var(--spacing-lg) var(--spacing-xl);
        margin: var(--spacing-xl) auto;
        max-width: 900px;
    }
}

.blog-article h1 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

/* ================================================
   BUTTONS
================================================== */

/* Buttons */
.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--button-gap);
    margin: var(--spacing-xs);
}

.btn {
    background-color: var(--bg-secondary);
    color: var(--text-btn);
    border: 1px solid currentColor;
    border-radius: var(--border-radius);
    padding: var(--button-padding);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    white-space: nowrap;
}

/* Button types */
.btn-primary {
    background-color: var(--btn-primary);
    color: var(--text-btn);
    border-color: var(--btn-primary);
}

.btn-primary:hover {
    background-color: var(--btn-primary-hover);
}

.btn-secondary {
    background-color: var(--btn-secondary);
    color: white;
    border-color: var(--btn-secondary);
}

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

.btn-success {
    background-color: var(--btn-success);
    color: white;
    border-color: var(--btn-success);
}

.btn-success:hover {
    background-color: var(--btn-success-hover);
}

.btn-warning {
    background-color: var(--btn-warning);
    color: white;
    border-color: var(--btn-warning);
}

.btn-warning:hover {
    background-color: var(--btn-warning-hover);
}

.btn-danger {
    background-color: var(--btn-danger);
    color: white;
    border-color: var(--btn-danger);
}

.btn-danger:hover {
    background-color: var(--btn-danger-hover);
}

.btn-info {
    background-color: var(--btn-info);
    color: white;
    border-color: var(--btn-info);
}

.btn-info:hover {
    background-color: var(--btn-info-hover);
}

/* Edit and Delete buttons */
.edit-btn {
    background-color: var(--btn-info);
    color: white;
    border: 1px solid var(--btn-info);
    border-radius: var(--border-radius);
    padding: var(--button-padding);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-align: center;
}

.edit-btn:hover {
    background-color: var(--btn-info-hover);
}

.delete-btn {
    background-color: var(--btn-danger);
    color: white;
    border: 1px solid var(--btn-danger);
    border-radius: var(--border-radius);
    padding: var(--button-padding);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-align: center;
}

.delete-btn:hover {
    background-color: var(--btn-danger-hover);
}

/* ================================================
   CONTENT SECTIONS
================================================== */

/* Content sections */
.section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

h1, h2, h3 {
    margin-bottom: var(--spacing-xs);
}

p {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

/* Responsive grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xs);
    margin: var(--spacing-xs);
}

.card {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-xs);
    transition: none;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.card a {
    color: var(--text-primary);
    text-decoration: none;
}

.card a:hover {
    color: var(--btn-primary-hover);
    text-decoration: none;
}

/* Theme toggle */
.theme-toggle {
    position: fixed;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    background: var(--bg-secondary);
    border: 1px solid var(--btn-primary);
    border-radius: 20%;
    width: 16px;
    height: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    z-index: 100;
    font-size: 1.2rem;
    box-sizing: border-box;
}

.theme-toggle:hover {
    background: var(--btn-primary-hover);
}

/* ================================================
   FORMS
================================================== */

/* Forms */
form {
    max-width: 600px;
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
}

/* Contact page text constraints */
.contact-text {
    max-width: 800px;
    margin: 0 auto var(--spacing-xs);
}

.contact-text p {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

/* Input Fields */
input,
textarea,
select {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--bg-secondary);
    border-radius: 3px;
    display: inline-block;
    padding: 0.5rem 0.75rem;
    width: 92%;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.25;
}

/* Override for select in table forms */
.table-form-row select {
    width: auto;
    flex: 1;
    min-width: 150px;
    padding: 0.25rem 0.5rem;
    font-size: 0.9rem;
    line-height: 1;
    height: auto;
    border: 1px solid var(--bg-secondary);
}

input::placeholder {
    color: var(--text-secondary);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--btn-primary);
    box-shadow: 0 0 0 2px rgba(2, 85, 238, 0.25);
}

input[disabled],
textarea[disabled] {
    background-color: var(--bg-secondary);
    border: solid 1px var(--bg-secondary);
    box-shadow: none;
    color: var(--text-secondary);
    cursor: not-allowed;
}

/* Form groups */
.form-group {
    margin-bottom: var(--spacing-xs);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

/* Form display */
.form-inline {
    display: inline;
}

/* Form margin */
.form-bottom-margin {
    margin-bottom: var(--spacing-md);
}

/* Checkbox group - align checkboxes and labels on same line */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.checkbox-group div {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin: 0;
    flex-shrink: 0;
}

.checkbox-group label {
    margin: 0;
    font-weight: normal;
    cursor: pointer;
}

/* Upload status feedback */
.upload-status {
    margin-top: var(--spacing-xs);
}

/* Login page text */
.login-hint {
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Login header with title and button */
.login-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.login-header h2 {
    margin: 0;
}

/* ================================================
   PAGINATION
================================================== */

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    margin: var(--spacing-xs);
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.pagination a:hover {
    background-color: var(--bg-secondary);
    color: var(--btn-primary);
}

.pagination a.active,
.pagination span.active {
    background-color: var(--btn-primary);
    color: white;
    border-color: var(--btn-primary);
}

.pagination span.ellipsis {
    background: none;
    border: none;
    padding: 0.5rem 0.25rem;
    color: var(--text-secondary);
}

.pagination span.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-button {
    padding: 0.5rem 1rem;
    border: none;
    background-color: var(--btn-primary);
    color: white;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.3s ease-in-out;
}

.pagination-button.active {
    background-color: var(--btn-primary-hover);
}

/* Desktop pagination (hidden on mobile) */
.pagination-desktop {
    display: flex;
}

.pagination-mobile {
    display: none;
}

/* Mobile Load More button */
.load-more-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    border: none;
    background-color: var(--btn-primary);
    color: white;
    cursor: pointer;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s ease-in-out;
}

.load-more-btn:hover:not(:disabled) {
    background-color: var(--btn-primary-hover);
}

.load-more-btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

/* ================================================
   ADMIN STYLES
================================================== */

/* Admin Styles */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--bg-secondary);
    flex-wrap: wrap;
}

.admin-header h1 {
    margin: 0;
    font-size: 1rem;
}

.admin-header a {
    color: var(--btn-primary);
}

.admin-header a:hover {
    color: var(--btn-primary-hover);
}

/* Secondary Navigation (shared by admin and user nav) */
.nav-secondary ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: var(--spacing-sm);
    margin: 0;
    gap: var(--spacing-md);
}

.nav-secondary li {
    margin: 0;
}

.nav-secondary a {
    color: var(--text-primary);
    display: block;
    padding: 0.25rem 0.5rem;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s;
    font-size: 0.85rem;
}

.nav-secondary a:hover {
    background: var(--bg-secondary);
    color: var(--btn-primary-hover);
}

.nav-secondary a.active {
    color: var(--btn-primary);
    font-weight: 600;
    border-bottom: 2px solid var(--btn-primary);
}

.nav-secondary a.logout-btn {
    color: var(--btn-warning);
    font-weight: 600;
}

.nav-secondary a.logout-btn:hover {
    background: rgba(255, 68, 68, 0.15);
    color: var(--btn-warning-hover);
}

.post-item {
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xs);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
}

.message {
    padding: var(--spacing-xs);
    margin: var(--spacing-xs);
    border-radius: 4px;
}

.success {
    background: var(--btn-success);
    color: white;
}

.error {
    background: var(--btn-danger);
    color: white;
}

/* Button group with spacing */
.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--button-gap);
    margin-top: var(--spacing-lg);
}

/* Modal hidden state */
.modal {
    display: none;
}

/* Admin footer spacing */
.admin-footer {
    margin-top: var(--spacing-lg);
}

.no-posts {
    color: var(--text-secondary);
    text-align: center;
    padding: var(--spacing-xs);
}

/* ================================================
   DATA TABLES & LISTS
================================================== */

/* Statistics grid */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    margin: var(--spacing-xs) 0;
}

/* Tablet: 2 columns */
@media (min-width: 600px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop: 3 columns */
@media (min-width: 900px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.stat-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--bg-secondary);
}

.stat-label {
    font-weight: 500;
    color: var(--text-primary);
}

.stat-value {
    font-weight: 600;
    color: var(--btn-primary);
    min-width: 30px;
    text-align: right;
}

.stat-active {
    border-color: var(--btn-success);
}

.stat-expired {
    border-color: var(--btn-warning);
}

/* Data Table (generic for all data lists) */
.data-container {
    margin-top: var(--spacing-xs);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-top: var(--spacing-xs);
}

.data-table th,
.data-table td {
    padding: var(--spacing-xs);
    text-align: left;
    border-bottom: 1px solid var(--bg-secondary);
}

.data-table th {
    background-color: var(--bg-primary);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
}

.data-table tr:hover {
    background-color: rgba(2, 85, 238, 0.05);
    cursor: pointer;
}

.data-table tr:nth-child(even) {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Records per page selector */
.records-per-page-selector {
    margin: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.records-per-page-selector label {
    font-weight: 500;
}

.records-per-page-selector select {
    padding: 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--bg-secondary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Pagination controls */
.pagination-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: var(--spacing-xs);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

/* Record link styling */
.record-link {
    color: var(--btn-primary);
    text-decoration: none;
}

.record-link:hover {
    color: var(--btn-primary-hover);
    text-decoration: underline;
}

/* ================================================
   FORM LAYOUTS
================================================== */

/* Form layout - Two-column layout for forms with reference panel */
.form-layout {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-layout > .data-form {
    flex: 2;
    min-width: 0;
}

.form-layout > .sidebar-panel {
    flex: 1;
    min-width: 0;
}

.form-layout > .sidebar-panel h3 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

/* Responsive: Stack elements on small screens */
@media (max-width: 768px) {
    .form-layout {
        flex-direction: column;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }

    .form-layout > .sidebar-panel {
        margin-top: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .form-layout > .sidebar-panel h3 {
        margin-bottom: var(--spacing-sm);
        padding-bottom: var(--spacing-xs);
    }

    .form-layout > .sidebar-panel .sidebar-content pre {
        padding: 0.5rem;
    }
}

/* Data form - Generic form styles */
.data-form {
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xs);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
}

/* Reference panel - Generic reference content container */
.reference-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-xs);
}

.reference-panel h2 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

/* ================================================
   DETAILS/VIEWS
================================================== */

/* Detail container - Generic container for record detail views */
.detail-container {
    margin-top: var(--spacing-xs);
}

.detail-container h2 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

/* Detail content - Generic content area for record details */
.detail-content {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--bg-secondary);
}

/* Responsive: Adjust detail content on small screens */
@media (max-width: 768px) {
    .detail-content {
        padding: var(--spacing-sm) var(--spacing-xs);
    }
}

/* Detail actions - Generic action buttons container */
.detail-actions {
    margin-top: var(--spacing-md);
    text-align: center;
}

/* Detail row - Generic field display */
.detail-row {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--bg-primary);
}

.detail-row strong {
    display: inline-block;
    width: 120px;
    font-weight: 600;
    color: var(--text-primary);
}

.detail-row span {
    display: inline-block;
    margin-left: var(--spacing-md);
    color: var(--text-primary);
}

/* Responsive: Adjust detail row on small screens */
@media (max-width: 768px) {
    .detail-row {
        padding: var(--spacing-xs) 0;
    }

    .detail-row strong {
        width: 100px;
        font-size: 0.9rem;
    }

    .detail-row span {
        margin-left: var(--spacing-xs);
        font-size: 0.9rem;
    }
}

/* ================================================
   RESPONSIVE - MOBILE (max-width: 768px)
================================================== */

@media (max-width: 768px) {
    /* Custom Properties for mobile */
    :root {
        --spacing-xs: 2px;
        --spacing-sm: 4px;
        --spacing-md: 12px;
        --spacing-lg: 16px;
        --button-padding: 6px 10px;
        --button-gap: 6px;
    }

    /* Global Body & Layout */
    body {
        padding: var(--spacing-xs);
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .content-container {
        padding: var(--spacing-md) var(--spacing-xs);
        width: 100%;
        max-width: 100%;
    }

    .header-static {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        position: sticky;
        top: 0;
        z-index: 200;
    }

    /* Buttons & Forms */
    .button-group {
        gap: var(--button-gap);
    }

    .btn {
        font-size: 0.8rem;
        padding: var(--button-padding);
    }

    .pagination a,
    .pagination span {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
    }

    /* Responsive pagination - mobile view */
    .pagination-desktop {
        display: none;
    }

    .pagination-mobile {
        display: block;
    }

    /* Headers & Navigation */
    .header-container {
        flex-direction: column;
        text-align: center;
        padding: 0 var(--spacing-xs);
    }

    .header-container nav ul {
        margin-top: var(--spacing-xs);
    }

    .header-container nav ul li {
        margin: 0 var(--spacing-xs);
    }

    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
        padding-bottom: var(--spacing-xs);
    }

    .admin-header h1 {
        font-size: 1.25rem;
    }

    .nav-secondary a {
        padding: 0.25rem 0.5rem;
        font-size: 0.8rem;
    }

    #listings-header h1 {
        font-size: 1.5rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    /* Cards & Content Blocks */
    .blog-article,
    .post-item,
    .featured-post,
    .blog-post,
    .card,
    .section,
    footer {
        padding: var(--spacing-xs);
    }

    /* Header container on mobile - match content padding */
    .header-container {
        padding: 0 var(--spacing-xs);
        max-width: 100%;
    }

    /* Tables & Scrollable Areas */
    .data-container {
        overflow-x: auto;
        padding: 0;
    }

    .data-table {
        width: 100%;
        min-width: auto;
        font-size: 0.85rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem 0.25rem;
    }

    /* Data Table - Card layout for mobile */
    .data-table {
        display: block;
    }

    .data-table thead {
        display: none;
    }

    .data-table tbody tr {
        display: block;
        background-color: var(--bg-secondary);
        border-radius: var(--border-radius);
        margin-bottom: var(--spacing-md);
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        border: 1px solid var(--bg-secondary);
    }

    .data-table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 0.75rem;
        border-bottom: 1px solid var(--bg-primary);
        font-size: 0.85rem;
    }

    .data-table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        margin-right: var(--spacing-xs);
        flex: 0 0 80px;
    }

    .data-table tbody td:last-child {
        border-bottom: none;
    }

    .data-table tbody td.actions {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .data-table tbody td.actions .edit-btn,
    .data-table tbody td.actions .delete-btn {
        width: 100%;
    }

    /* Form inputs and textarea on mobile */
    .data-form input,
    .data-form textarea,
    .form-layout input,
    .form-layout textarea {
        width: 100%;
        box-sizing: border-box;
    }

    /* Mobile Menu (Hamburger) */
    .hamburger {
        display: flex;
        position: fixed;
        top: var(--spacing-lg);
        left: var(--spacing-xs);
        z-index: 201;
        background-color: var(--bg-primary);
        border: 1px solid var(--border-color);
        border-radius: 4px;
    }

    /* Hide nav menu on mobile by default */
    #nav-menu {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: 0;
        width: 150px;
        height: 100vh;
        max-height: 100vh;
        background-color: var(--bg-secondary);
        padding: var(--spacing-xs);
        z-index: 99;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        overflow-x: hidden;
    }

    /* Show nav menu when active class is added */
    #nav-menu.active {
        display: block;
        transform: translateX(0);
    }

    #nav-menu li {
        margin: 1rem 0;
        text-align: center;
    }

    #nav-menu a {
        padding: 0.75rem 0;
        display: block;
        font-size: 1.2rem;
    }

    /* Theme toggle inside mobile menu */
    #nav-menu li .theme-toggle {
        margin: 0;
        padding: 0.5rem;
        border-radius: 50%;
        background: var(--bg-secondary);
        transition: all 0.3s;
    }

    #nav-menu li .theme-toggle:hover {
        background: rgba(2, 85, 238, 0.1);
        color: var(--btn-primary);
    }
}

/* ================================================
   RESPONSIVE - SMALL MOBILE (max-width: 480px)
================================================== */

@media (max-width: 480px) {
    :root {
        --button-gap: 4px;
        --button-padding: 4px 8px;
    }

    .btn {
        font-size: 0.75rem;
        padding: var(--button-padding);
    }

    #listings-header h1 {
        font-size: 1.3rem;
    }

    .pagination a,
    .pagination span {
        padding: 0.3rem 0.5rem;
    }

    .section {
        padding: 0;
    }

    .blog-article {
        padding: 4px;
        margin: var(--spacing-xs) auto;
        max-width: 100%;
    }

    .blog-posts {
        padding: 0;
        grid-template-columns: 1fr;
    }

    .header-static {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        padding: 0;
    }

    .content-container {
        width: 100%;
        max-width: 100%;
    }
}

/* ================================================
   TYPOGRAPHY & CONTENT STYLES
================================================== */

/* Horizontal rule (markdown separator) */
hr {
    border: 0;
    border-top: 1px solid var(--text-secondary);
    margin: 1.5em 0;
    opacity: 0.5;
}

/* Code blocks */
pre {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm) var(--spacing-xs);
    margin: var(--spacing-sm) 0;
    overflow-x: auto;
}

pre code {
    color: var(--text-primary);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    white-space: pre;
    display: block;
    background-color: transparent;
    margin: 0;
    padding: 0;
}

/* Inline code */
code {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
}

/* ================================================
   IMAGE VALIDATION STYLES
================================================== */

.image-validation {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.image-validation h4 {
    margin: var(--spacing-xs);
    color: var(--text-primary);
    font-size: 1em;
}

.validation-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.validation-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-xs);
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.validation-item.exists {
    border-left: 4px solid var(--btn-success);
}

.validation-item.missing {
    border-left: 4px solid var(--btn-danger);
}

.status-icon {
    font-size: 1.2em;
    margin-right: var(--spacing-xs);
    min-width: 24px;
    text-align: center;
}

.image-info {
    flex: 1;
    font-size: 0.9em;
    color: var(--text-secondary);
}

.image-info strong {
    color: var(--text-primary);
}

.status-text {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85em;
    font-weight: 600;
}

.status-text.exists {
    background-color: var(--btn-success);
    color: white;
}

.status-text.missing {
    background-color: var(--btn-danger);
    color: white;
}

/* ================================================
   MARKDOWN TABLE STYLES
================================================== */

/* Markdown Tables */
.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-sm) 0;
    overflow-x: auto;
    display: block;
    min-width: 600px;
}

.post-content th,
.post-content td {
    padding: var(--spacing-xs);
    border: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
}

.post-content th {
    background-color: var(--bg-primary);
    font-weight: 600;
}

.post-content tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.05);
}

.post-content tbody tr:hover {
    background-color: rgba(2, 85, 238, 0.1);
}

/* ================================================
   ERROR PAGE STYLES
================================================== */

/* Error page container */
.error-page-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
    box-sizing: border-box;
}

.error-page-content {
    max-width: 500px;
    text-align: center;
}

.error-page-note {
    display: block;
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
}

.error-page-link {
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
}

.error-page-link:hover {
    color: var(--btn-primary-hover);
    border-bottom-color: var(--btn-primary-hover);
}

/* ================================================
   ANCHOR SCROLL MARGIN
================================================== */

/* Add scroll margin to all headings to account for fixed header */
h1, h2, h3, h4, h5, h6 {
    scroll-margin-top: 80px;
}

/* ================================================
   AVATAR & PROFILE ELEMENTS
================================================== */

/* Avatar container - centered avatar display with metadata */
.avatar-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.avatar-container p {
    margin: var(--spacing-xs) 0;
    color: var(--text-secondary);
}

/* Avatar image - generic avatar styling */
.avatar-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-color);
    margin-bottom: var(--spacing-sm);
}

/* Avatar selection area */
.avatar-selection {
    text-align: center;
}

/* Password strength indicator */
.password-strength {
    margin-top: var(--spacing-xs);
    font-size: 0.85rem;
}

.password-strength span {
    font-weight: 600;
}

/* Narrow page container - for centered layouts with max width */
.page-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xxl);
}

/* Responsive adjustments for narrow containers */
@media (max-width: 600px) {
    .page-container {
        padding: var(--spacing-md);
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
        box-sizing: border-box;
    }
}