/* ============================================================
   SitioDeRubros.com - Main Stylesheet
   ============================================================ */

/* ----------------------------------------------------------
   CSS Variables / Theming
   ---------------------------------------------------------- */
:root {
    --primary: #2c3e50;
    --primary-light: #34495e;
    --primary-dark: #1a252f;
    --accent: #e74c3c;
    --accent-hover: #c0392b;
    --success: #27ae60;
    --warning: #f39c12;
    --info: #2980b9;
    --danger: #e74c3c;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --font-family-sans-serif: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-monospace: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --border-radius: 0.25rem;
    --border-radius-lg: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --transition: all 0.2s ease-in-out;
    --navbar-height: 56px;
    --footer-bg: #2c3e50;
    --footer-color: #ecf0f1;
    --featured-bg: #fff3cd;
    --featured-border: #ffc107;
    --sidebar-width: 250px;
    --content-max-width: 1200px;
}

/* ----------------------------------------------------------
   Base Reset & Defaults
   ---------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-sans-serif);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--gray-100);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--info);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.2;
    color: var(--primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ----------------------------------------------------------
   Layout / Container
   ---------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--content-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

.page-content {
    min-height: calc(100vh - var(--navbar-height) - 200px);
    padding-top: 1.5rem;
    padding-bottom: 2rem;
}

/* ----------------------------------------------------------
   Navbar
   ---------------------------------------------------------- */
.navbar {
    background-color: var(--primary);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1030;
    min-height: var(--navbar-height);
}

.navbar-brand {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand:hover {
    color: var(--light);
    text-decoration: none;
}

.navbar-brand .brand-icon {
    font-size: 1.75rem;
}

.navbar-nav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.25rem;
}

.navbar-nav .nav-item .nav-link {
    color: rgba(255, 255, 255, 0.85);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-decoration: none;
    display: block;
}

.navbar-nav .nav-item .nav-link:hover,
.navbar-nav .nav-item .nav-link.active {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.15);
    text-decoration: none;
}

.navbar-toggler {
    display: none;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.25rem 0.75rem;
    font-size: 1.25rem;
    line-height: 1;
    color: var(--white);
    border-radius: var(--border-radius);
    cursor: pointer;
}

.navbar-toggler:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-search {
    display: flex;
    align-items: center;
}

.navbar-search input[type="text"] {
    border: none;
    border-radius: var(--border-radius);
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    width: 200px;
    transition: var(--transition);
}

.navbar-search input[type="text"]:focus {
    outline: none;
    width: 260px;
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

.navbar-search button {
    background: var(--accent);
    color: var(--white);
    border: none;
    padding: 0.375rem 0.75rem;
    margin-left: 0.25rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.navbar-search button:hover {
    background-color: var(--accent-hover);
}

/* ----------------------------------------------------------
   Quick Info Bar (Weather / Exchange Rates)
   ---------------------------------------------------------- */
.quick-info-bar {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 0.4rem 0;
    font-size: 0.8rem;
    border-bottom: 2px solid var(--accent);
}

.quick-info-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.quick-info-bar .info-items {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.quick-info-bar .info-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.quick-info-bar .info-item i {
    color: var(--accent);
    font-size: 0.9rem;
}

.quick-info-bar .info-label {
    color: var(--gray-400);
}

.quick-info-bar .info-value {
    font-weight: 600;
    color: var(--white);
}

.quick-info-bar .last-updated {
    color: var(--gray-500);
    font-size: 0.75rem;
}

/* ----------------------------------------------------------
   Cards
   ---------------------------------------------------------- */
.card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--box-shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    background-color: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
    padding: 0.75rem 1rem;
    font-weight: 600;
}

.card-body {
    padding: 1rem;
}

.card-footer {
    background-color: var(--gray-100);
    border-top: 1px solid var(--gray-200);
    padding: 0.75rem 1rem;
}

.card-img-top {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.card-text {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.card-link {
    color: var(--info);
    font-weight: 500;
}

.card-link:hover {
    color: var(--accent-hover);
}

/* Article Card Grid */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* ----------------------------------------------------------
   Featured Section
   ---------------------------------------------------------- */
.featured-section {
    background: linear-gradient(135deg, var(--featured-bg) 0%, var(--white) 100%);
    border: 1px solid var(--featured-border);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.featured-section .section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--featured-border);
}

.featured-section .section-title i {
    color: var(--warning);
}

.featured-section .featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.featured-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1rem;
    transition: var(--transition);
    border-left: 4px solid var(--warning);
}

.featured-card:hover {
    box-shadow: var(--box-shadow);
    transform: translateY(-1px);
}

.featured-card .card-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.featured-card .card-title {
    font-size: 1rem;
    margin-bottom: 0.35rem;
}

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

.featured-card .card-title a:hover {
    color: var(--accent);
}

.featured-card .card-excerpt {
    font-size: 0.85rem;
    color: var(--gray-600);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-badge {
    display: inline-block;
    background: var(--warning);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

/* ----------------------------------------------------------
   Article / Detail Styles
   ---------------------------------------------------------- */
.article-detail {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.article-detail .article-header {
    padding: 1.5rem 1.5rem 0;
}

.article-detail .article-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.article-detail .article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    color: var(--gray-600);
    font-size: 0.85rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 1rem;
}

.article-detail .article-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.article-detail .article-meta .meta-item i {
    color: var(--gray-500);
}

.article-detail .article-body {
    padding: 0 1.5rem 1.5rem;
    line-height: 1.8;
    font-size: 1rem;
}

.article-detail .article-body img {
    border-radius: var(--border-radius);
    margin: 1rem 0;
    box-shadow: var(--box-shadow);
}

.article-detail .article-body h2,
.article-detail .article-body h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.article-detail .article-body p {
    margin-bottom: 1rem;
}

.article-detail .article-body ul,
.article-detail .article-body ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.article-detail .article-body li {
    margin-bottom: 0.35rem;
}

.article-detail .article-footer {
    padding: 1rem 1.5rem;
    background-color: var(--gray-100);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.article-tags .tag {
    display: inline-block;
    background: var(--gray-200);
    color: var(--gray-700);
    padding: 0.2rem 0.6rem;
    border-radius: 2px;
    font-size: 0.75rem;
    text-decoration: none;
    transition: var(--transition);
}

.article-tags .tag:hover {
    background: var(--primary);
    color: var(--white);
    text-decoration: none;
}

.article-category-badge {
    display: inline-block;
    background: var(--info);
    color: var(--white);
    padding: 0.2rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
}

.article-category-badge:hover {
    background: var(--accent-hover);
    color: var(--white);
    text-decoration: none;
}

/* Sidebar */
.article-sidebar {
    padding-left: 1.5rem;
}

.sidebar-widget {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.sidebar-widget .widget-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent);
}

.sidebar-widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-widget ul li {
    padding: 0.35rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-widget ul li:last-child {
    border-bottom: none;
}

.sidebar-widget ul li a {
    color: var(--gray-700);
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-widget ul li a:hover {
    color: var(--accent);
}

/* ----------------------------------------------------------
   Admin Panel
   ---------------------------------------------------------- */
.admin-wrapper {
    display: flex;
    min-height: calc(100vh - var(--navbar-height));
}

.admin-sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 1rem 0;
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 1020;
    transition: var(--transition);
}

.admin-sidebar .sidebar-header {
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
    font-weight: 600;
}

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

.admin-sidebar .sidebar-nav .nav-section {
    padding: 0.5rem 1rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
    margin-top: 0.5rem;
}

.admin-sidebar .sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1rem;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.admin-sidebar .sidebar-nav li a:hover,
.admin-sidebar .sidebar-nav li a.active {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--accent);
    text-decoration: none;
}

.admin-sidebar .sidebar-nav li a i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.admin-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 1.5rem;
    background-color: var(--gray-100);
    min-height: calc(100vh - var(--navbar-height));
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.admin-header h1 {
    font-size: 1.75rem;
    margin: 0;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    border-left: 4px solid var(--info);
}

.stat-card.primary { border-left-color: var(--primary); }
.stat-card.success { border-left-color: var(--success); }
.stat-card.warning { border-left-color: var(--warning); }
.stat-card.danger { border-left-color: var(--danger); }

.stat-card .stat-icon {
    font-size: 2rem;
    color: var(--gray-400);
}

.stat-card .stat-info .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.stat-card .stat-info .stat-label {
    font-size: 0.8rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-table {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.admin-table .table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.admin-table .table-header h2 {
    font-size: 1.1rem;
    margin: 0;
}

/* ----------------------------------------------------------
   Footer
   ---------------------------------------------------------- */
.site-footer {
    background-color: var(--footer-bg);
    color: var(--footer-color);
    padding: 2rem 0 1rem;
    margin-top: 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-section h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--gray-400);
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--white);
    padding-left: 0.25rem;
    text-decoration: none;
}

.footer-section p {
    color: var(--gray-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-section .social-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.footer-section .social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
}

.footer-section .social-links a:hover {
    background-color: var(--accent);
    transform: translateY(-2px);
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    color: var(--gray-500);
    font-size: 0.8rem;
}

.footer-bottom a {
    color: var(--gray-400);
}

.footer-bottom a:hover {
    color: var(--white);
}

/* ----------------------------------------------------------
   Forms
   ---------------------------------------------------------- */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--white);
    border: 1px solid var(--gray-400);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--info);
    box-shadow: 0 0 0 0.2rem rgba(41, 128, 185, 0.25);
}

.form-control::placeholder {
    color: var(--gray-500);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-valid {
    border-color: var(--success);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-right: 2.5rem;
}

.form-text {
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--gray-600);
}

.text-danger {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.validation-summary-errors {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.validation-summary-errors ul {
    margin: 0;
    padding-left: 1.25rem;
}

/* Form Row / Inline */
.form-row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -5px;
    margin-left: -5px;
}

.form-row .form-group {
    flex: 1;
    padding-right: 5px;
    padding-left: 5px;
    min-width: 200px;
}

/* ----------------------------------------------------------
   Buttons
   ---------------------------------------------------------- */
.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    transition: var(--transition);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: #217dbb;
    border-color: #1a68a1;
    color: var(--white);
}

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

.btn-success:hover {
    background-color: #219a52;
    border-color: #1e8848;
    color: var(--white);
}

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

.btn-danger:hover {
    background-color: #c0392b;
    border-color: #a93226;
    color: var(--white);
}

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

.btn-warning:hover {
    background-color: #e08e0b;
    border-color: #cb850a;
    color: var(--white);
}

.btn-outline-secondary {
    color: var(--gray-600);
    background-color: transparent;
    border-color: var(--gray-400);
}

.btn-outline-secondary:hover {
    color: var(--white);
    background-color: var(--gray-600);
    border-color: var(--gray-600);
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 0.6rem 1.25rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn + .btn {
    margin-left: 0.5rem;
}

/* ----------------------------------------------------------
   Tables
   ---------------------------------------------------------- */
.table-wrapper {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem 1rem;
    text-align: left;
    vertical-align: middle;
    border-top: 1px solid var(--gray-200);
}

.table thead th {
    background-color: var(--gray-100);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-300);
}

.table tbody tr:hover {
    background-color: var(--gray-100);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

.table-actions {
    display: flex;
    gap: 0.25rem;
}

.table-actions .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* ----------------------------------------------------------
   Badges
   ---------------------------------------------------------- */
.badge {
    display: inline-block;
    padding: 0.25em 0.65em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    color: var(--white);
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
}

.badge-primary { background-color: var(--primary); }
.badge-success { background-color: var(--success); }
.badge-warning { background-color: var(--warning); color: var(--gray-900); }
.badge-danger { background-color: var(--danger); }
.badge-info { background-color: var(--info); }
.badge-secondary { background-color: var(--gray-600); }

.badge-pill {
    border-radius: 10rem;
    padding-left: 0.65em;
    padding-right: 0.65em;
}

/* ----------------------------------------------------------
   Alerts
   ---------------------------------------------------------- */
.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-color: #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border-color: #ffeeba;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-color: #bee5eb;
}

.alert-dismissible {
    padding-right: 3rem;
    position: relative;
}

.alert-dismissible .close {
    position: absolute;
    top: 0.75rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: inherit;
    cursor: pointer;
    opacity: 0.5;
}

.alert-dismissible .close:hover {
    opacity: 1;
}

/* ----------------------------------------------------------
   Breadcrumbs
   ---------------------------------------------------------- */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0.5rem 0;
    margin: 0 0 1rem;
    font-size: 0.85rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    padding: 0 0.5rem;
    color: var(--gray-500);
}

.breadcrumb-item a {
    color: var(--info);
}

.breadcrumb-item.active {
    color: var(--gray-600);
}

/* ----------------------------------------------------------
   Pagination
   ---------------------------------------------------------- */
.pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 1rem 0;
    gap: 0.25rem;
}

.pagination .page-item .page-link {
    display: block;
    padding: 0.4rem 0.75rem;
    color: var(--info);
    background-color: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
}

.pagination .page-item .page-link:hover {
    background-color: var(--gray-200);
    color: var(--primary);
    text-decoration: none;
}

.pagination .page-item.active .page-link {
    background-color: var(--info);
    border-color: var(--info);
    color: var(--white);
}

.pagination .page-item.disabled .page-link {
    color: var(--gray-500);
    pointer-events: none;
    background-color: var(--white);
}

/* ----------------------------------------------------------
   Utility Classes
   ---------------------------------------------------------- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--gray-600) !important; }

.font-weight-bold { font-weight: 700; }
.font-weight-normal { font-weight: 400; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: 0.25rem !important; }
.pt-2 { padding-top: 0.5rem !important; }
.pt-3 { padding-top: 1rem !important; }
.pt-4 { padding-top: 1.5rem !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: 0.25rem !important; }
.pb-2 { padding-bottom: 0.5rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pb-4 { padding-bottom: 1.5rem !important; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-block { display: inline-block !important; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

.overflow-auto { overflow: auto !important; }
.position-relative { position: relative !important; }

.rounded { border-radius: var(--border-radius) !important; }
.shadow { box-shadow: var(--box-shadow) !important; }

/* ----------------------------------------------------------
   No Results / Empty State
   ---------------------------------------------------------- */
.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--gray-600);
}

.no-results i {
    font-size: 3rem;
    color: var(--gray-400);
    margin-bottom: 1rem;
    display: block;
}

.no-results h3 {
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.no-results p {
    color: var(--gray-500);
}

/* ----------------------------------------------------------
   Loading Spinner
   ---------------------------------------------------------- */
.spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 0.25rem solid var(--gray-300);
    border-top-color: var(--info);
    border-radius: 50%;
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to { transform: rotate(360deg); }
}

/* ----------------------------------------------------------
   Responsive Breakpoints
   ---------------------------------------------------------- */
@media (max-width: 992px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }

    .admin-sidebar.show {
        transform: translateX(0);
    }

    .admin-content {
        margin-left: 0;
    }

    .article-detail .article-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 13px;
    }

    .navbar {
        flex-wrap: wrap;
    }

    .navbar-toggler {
        display: block;
    }

    .navbar-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
    }

    .navbar-nav.show {
        display: flex;
    }

    .navbar-nav .nav-item .nav-link {
        padding: 0.75rem 1rem;
        border-radius: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .navbar-search {
        width: 100%;
        margin-top: 0.5rem;
    }

    .navbar-search input[type="text"] {
        width: 100%;
    }

    .navbar-search input[type="text"]:focus {
        width: 100%;
    }

    .quick-info-bar .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .quick-info-bar .info-items {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

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

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

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

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

    .form-row .form-group {
        flex: 1 1 100%;
    }

    .btn + .btn {
        margin-left: 0;
        margin-top: 0.25rem;
    }

    .table-responsive {
        overflow-x: auto;
    }

    .article-detail .article-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-detail .article-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .card-body {
        padding: 0.75rem;
    }

    .page-content {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }

    .pagination {
        justify-content: center;
    }
}

/* ----------------------------------------------------------
   Print Styles
   ---------------------------------------------------------- */
@media print {
    .navbar,
    .quick-info-bar,
    .admin-sidebar,
    .site-footer,
    .btn,
    .pagination,
    .no-print {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    .article-detail .article-body {
        padding: 0;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }
}