/* ============================================
   INFOHP.WEB.ID - PREMIUM MODERN DESIGN
   ============================================ */

/* ============ CSS VARIABLES ============ */
:root {
    /* Colors */
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary: #0f172a;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    /* Background & Text (Light Mode) */
    --bg-main: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    --bg-footer: #0f172a;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    --border-color: #e2e8f0;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px 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 48px rgba(0,0,0,0.16);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-max: 1200px;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-main: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --bg-header: #0f172a;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.6);
}

/* ============ RESET & BASE ============ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-main);
    transition: background-color var(--transition-medium), color var(--transition-medium);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ============ CONTAINER ============ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }


/* ============ HEADER ============ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-medium);
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.header-logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.header-logo-text span {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-search {
    display: flex;
    align-items: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 6px 12px;
    transition: border-color var(--transition-fast);
}

.header-search:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.header-search input {
    border: none;
    background: transparent;
    padding: 6px 8px;
    font-size: var(--text-sm);
    color: var(--text-primary);
    width: 200px;
    outline: none;
}

.header-search button {
    color: var(--text-muted);
    padding: 4px;
    transition: color var(--transition-fast);
}

.header-search button:hover {
    color: var(--primary);
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.header-nav {
    border-top: 1px solid var(--border-color);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.header-nav ul {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    white-space: nowrap;
}

.header-nav a {
    display: block;
    padding: 8px 16px;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.header-nav a:hover,
.header-nav a.active {
    color: var(--primary);
    background-color: rgba(26, 86, 219, 0.08);
}



/* ============ HERO SECTION ============ */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--secondary) 100%);
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.03);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
}

.hero h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero p {
    color: rgba(255,255,255,0.85);
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-lg);
}

.hero-search {
    display: flex;
    background: white;
    border-radius: var(--radius-full);
    padding: 4px;
    box-shadow: var(--shadow-xl);
    max-width: 500px;
}

.hero-search input {
    flex: 1;
    border: none;
    padding: 12px 20px;
    font-size: var(--text-base);
    outline: none;
    border-radius: var(--radius-full);
}

.hero-search button {
    background: var(--primary);
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: background-color var(--transition-fast);
}

.hero-search button:hover {
    background: var(--primary-dark);
}

/* ============ SECTION ============ */
.section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.section-title {
    font-size: var(--text-3xl);
    margin-bottom: 0;
}

.section-title span {
    color: var(--primary);
}

.section-link {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ============ ARTICLE CARD ============ */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-sm);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.article-card-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.article-card:hover .article-card-image img {
    transform: scale(1.05);
}

.article-card-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

.article-card-content {
    padding: var(--spacing-lg);
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.article-card-title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.article-card-title a {
    color: var(--text-primary);
}

.article-card-title a:hover {
    color: var(--primary);
}

.article-card-excerpt {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.article-card-author {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.article-card-author img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.article-card-read-more {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary);
}

/* ============ FEATURED ARTICLE ============ */
.featured-article {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-2xl);
}

.featured-article-image {
    position: relative;
    min-height: 400px;
}

.featured-article-image img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-article-content {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-article-badge {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    width: fit-content;
}

.featured-article h2 {
    font-size: var(--text-3xl);
    margin-bottom: var(--spacing-md);
}

.featured-article p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}



/* ============ ARTICLE PAGE ============ */
.article-page {
    padding: var(--spacing-2xl) 0;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
}

.article-main {
    max-width: 100%;
}

.article-header {
    margin-bottom: var(--spacing-lg);
}

.article-category-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.article-title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta-item svg {
    width: 16px;
    height: 16px;
}

.article-featured-image {
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.article-featured-image img {
    width: 100%;
    height: auto;
}

.article-content {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--text-primary);
}

.article-content h2 {
    font-size: var(--text-2xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 2px solid var(--border-color);
}

.article-content h3 {
    font-size: var(--text-xl);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.article-content p {
    margin-bottom: var(--spacing-md);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

.article-content ul {
    list-style: disc;
}

.article-content ol {
    list-style: decimal;
}

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

.article-content img {
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    background: var(--bg-secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
}

.article-content table th,
.article-content table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    text-align: left;
}

.article-content table th {
    background: var(--bg-secondary);
    font-weight: 600;
}

/* ============ AD SPACE ============ */
.ad-space {
    background: var(--bg-secondary);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    margin: var(--spacing-md) 0;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-space.horizontal {
    min-height: 90px;
}

.ad-space.rectangle {
    min-height: 250px;
}

.ad-space.vertical {
    min-height: 600px;
}

/* ============ ARTICLE TAGS ============ */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.article-tag {
    display: inline-block;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    transition: all var(--transition-fast);
}

.article-tag:hover {
    background: var(--primary);
    color: white;
}

/* ============ AUTHOR BOX ============ */
.author-box {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.author-box img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

.author-box-info h4 {
    margin-bottom: 4px;
}

.author-box-info p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ============ RELATED ARTICLES ============ */
.related-articles {
    margin-top: var(--spacing-xl);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

/* ============ SIDEBAR ============ */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sidebar-widget {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.sidebar-widget-title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary);
    display: inline-block;
}

.sidebar-widget ul li {
    margin-bottom: var(--spacing-sm);
}

.sidebar-widget ul li a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

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

.sidebar-widget ul li a::before {
    content: '→';
    color: var(--primary);
    font-weight: 700;
}

.popular-post {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.popular-post img {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.popular-post-info h6 {
    font-size: var(--text-sm);
    margin-bottom: 4px;
    line-height: 1.3;
}

.popular-post-info span {
    font-size: var(--text-xs);
    color: var(--text-muted);
}


/* ============ BREADCRUMB ============ */
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm) 0;
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.breadcrumb-separator {
    color: var(--text-muted);
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 600;
}

/* ============ PAGINATION ============ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.pagination .current {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ============ FOOTER ============ */
.footer {
    background: var(--bg-footer);
    color: #94a3b8;
    padding: var(--spacing-3xl) 0 0;
    margin-top: var(--spacing-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-2xl);
}

.footer-brand h3 {
    color: white;
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-md);
}

.footer-brand h3 span {
    color: var(--primary-light);
}

.footer-brand p {
    font-size: var(--text-sm);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    color: white;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-column h4 {
    color: white;
    font-size: var(--text-base);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li a {
    color: #94a3b8;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: var(--spacing-lg) 0;
    text-align: center;
    font-size: var(--text-sm);
}

.footer-bottom a {
    color: var(--primary-light);
}

/* ============ NEWSLETTER ============ */
.newsletter {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    color: white;
    margin-bottom: var(--spacing-2xl);
}

.newsletter h3 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.newsletter p {
    color: rgba(255,255,255,0.85);
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-md);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-full);
    outline: none;
    font-size: var(--text-sm);
}

.newsletter-form button {
    padding: 12px 24px;
    background: var(--secondary);
    color: white;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: background-color var(--transition-fast);
}

.newsletter-form button:hover {
    background: #1e293b;
}


/* ============ RESPONSIVE DESIGN ============ */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .featured-article {
        grid-template-columns: 1fr;
    }
    
    .featured-article-image {
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .header-search {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-header);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }
    
    .header-nav.active {
        display: block;
    }
    
    .header-nav ul {
        flex-direction: column;
        padding: var(--spacing-sm);
        gap: 4px;
    }
    
    .header-nav a {
        padding: 12px 16px;
        border-radius: var(--radius-md);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: var(--text-base);
    }
    
    .article-title {
        font-size: 1.75rem;
    }
    
    .article-content {
        font-size: var(--text-base);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
    
    .hero-search input {
        font-size: var(--text-sm);
        padding: 10px 14px;
    }
    
    .hero-search button {
        padding: 10px 16px;
        font-size: var(--text-sm);
    }
    
    .article-title {
        font-size: 1.5rem;
    }
    
    .article-meta {
        font-size: var(--text-xs);
        gap: var(--spacing-sm);
    }
    
    .featured-article-content {
        padding: var(--spacing-lg);
    }
    
    .featured-article h2 {
        font-size: var(--text-xl);
    }
}

/* ============ UTILITIES ============ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* ============ SCROLL TO TOP ============ */
.scroll-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    z-index: 999;
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ============ LOADING SKELETON ============ */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--border-color) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============ NOTIFICATION ============ */
.notification {
    position: fixed;
    top: 80px;
    right: 20px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transform: translateX(120%);
    transition: transform var(--transition-medium);
}

.notification.active {
    transform: translateX(0);
}

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.error {
    border-left: 4px solid var(--danger);
}

/* ============ PRINT STYLES ============ */
@media print {
    .header,
    .footer,
    .sidebar,
    .ad-space,
    .scroll-top,
    .newsletter {
        display: none !important;
    }
    
    .article-layout {
        grid-template-columns: 1fr;
    }
    
    .article-content {
        font-size: 12pt;
        line-height: 1.6;
    }
}