/**
 * Bingo En Linea - Main Stylesheet
 * Color Palette: #2d1b4e (purple), #ff6b35 (orange), #f7c948 (gold), #1a1a2e (dark)
 */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    --color-primary: #2d1b4e;
    --color-secondary: #1a1a2e;
    --color-accent: #f7c948;
    --color-highlight: #ff6b35;
    --color-white: #ffffff;
    --color-light: #f5f5f5;
    --color-gray: #6c757d;
    --color-dark: #212529;
    --color-success: #28a745;
    --color-purple-light: #4a2c7a;

    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-heading: 'Arial Black', 'Arial Bold', Gadget, sans-serif;

    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: all 0.3s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
}

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

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

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

ul, ol {
    list-style: none;
}

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-main {
    min-height: 60vh;
}

section {
    padding: 60px 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-highlight), var(--color-accent));
    border-radius: 2px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-highlight), #e55a2b);
    color: var(--color-white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #e55a2b, var(--color-highlight));
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--color-accent), #deb440);
    color: var(--color-primary);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #deb440, var(--color-accent));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* ============================================
   Header - Two Row Layout
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

/* Top Row - Logo & Info */
.header-top {
    background: var(--color-primary);
    padding: 12px 0;
}

.header-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo img {
    height: 40px;
    width: auto;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-badge {
    background: var(--color-highlight);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
}

.header-slogan {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.9rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-white);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 3px;
    background: var(--color-white);
    transition: var(--transition);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

/* Bottom Row - Navigation */
.header-nav {
    background: var(--color-purple-light);
    padding: 0;
}

.main-nav {
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    display: block;
    padding: 15px 20px;
    color: var(--color-white);
    font-weight: 500;
    font-size: 0.85rem;
    white-space: nowrap;
    transition: var(--transition);
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-accent);
}

/* Submenu */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-secondary);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li a {
    display: block;
    padding: 12px 20px;
    color: var(--color-white);
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.submenu li:last-child a {
    border-bottom: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.submenu li a:hover {
    background: var(--color-highlight);
    color: var(--color-white);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-purple-light) 50%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-decorations {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

/* Bingo Balls - positioned absolutely */
.bingo-ball {
    position: absolute;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 2rem;
    color: var(--color-white);
    animation: bounce 3s ease-in-out infinite;
    box-shadow: inset -5px -5px 15px rgba(0,0,0,0.3), 0 6px 20px rgba(0,0,0,0.4);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.bingo-ball::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 14px;
    width: 18px;
    height: 12px;
    background: rgba(255,255,255,0.5);
    border-radius: 50%;
}

.ball-b { background: linear-gradient(135deg, #3498db, #2980b9); animation-delay: 0s; }
.ball-i { background: linear-gradient(135deg, #e74c3c, #c0392b); animation-delay: 0.2s; }
.ball-n { background: linear-gradient(135deg, #f39c12, #d68910); animation-delay: 0.4s; }
.ball-g { background: linear-gradient(135deg, #27ae60, #1e8449); animation-delay: 0.6s; }
.ball-o { background: linear-gradient(135deg, #9b59b6, #8e44ad); animation-delay: 0.8s; }

@keyframes bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-15px) scale(1.08); }
}

/* Mini Balls */
.mini-ball {
    position: absolute;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--color-white);
    animation: float 4s ease-in-out infinite;
    box-shadow: inset -3px -3px 8px rgba(0,0,0,0.3), 0 3px 10px rgba(0,0,0,0.2);
}

/* Bingo Tickets */
.bingo-ticket {
    position: absolute;
    background: #fff;
    border-radius: 8px;
    padding: 8px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    animation: float 5s ease-in-out infinite;
}

.ticket-left {
    left: 8%;
    top: 15%;
    transform: rotate(-8deg);
    animation-delay: 0s;
}

.ticket-right {
    right: 8%;
    bottom: 15%;
    transform: rotate(5deg);
    animation-delay: 1s;
}

.ticket-header {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
    margin-bottom: 4px;
}

.ticket-header span {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--color-highlight), #e55a2b);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 0.7rem;
    border-radius: 3px;
}

.ticket-body {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
}

.ticket-body span {
    width: 22px;
    height: 22px;
    background: #f0f0f0;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.6rem;
    border-radius: 2px;
    border: 1px solid #ddd;
}

.ticket-body span:nth-child(8) {
    background: var(--color-accent);
    color: var(--color-primary);
    font-weight: 900;
    font-size: 0.5rem;
}

.ticket-stamp {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-15deg);
    background: rgba(39, 174, 96, 0.9);
    color: white;
    padding: 3px 8px;
    font-weight: 900;
    font-size: 0.6rem;
    border-radius: 3px;
    border: 2px solid #1e8449;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(var(--rotate, -8deg)); }
    50% { transform: translateY(-12px) rotate(var(--rotate, -8deg)); }
}

.ticket-left { --rotate: -8deg; }
.ticket-right { --rotate: 5deg; }

/* Stars */
.star {
    position: absolute;
    color: var(--color-accent);
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
    opacity: 0.6;
}

.star:nth-child(odd) { animation-delay: 0.5s; }

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ============================================
   Carousel Section
   ============================================ */
.carousel-section {
    background: var(--color-secondary);
    padding: 30px 0;
    overflow: hidden;
}

.carousel-row {
    overflow: hidden;
    padding: 10px 0;
}

.carousel-track {
    display: flex;
    gap: 15px;
    animation: scroll var(--duration, 30s) linear infinite;
}

.carousel-row.reverse .carousel-track {
    animation-direction: reverse;
}

.carousel-row:hover .carousel-track {
    animation-play-state: paused;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.carousel-item {
    flex-shrink: 0;
}

.keyword-tag {
    display: inline-block;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--color-purple-light), var(--color-primary));
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    font-family: inherit;
}

.keyword-tag:hover {
    background: linear-gradient(135deg, var(--color-highlight), #e55a2b);
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

/* ============================================
   Categories Section
   ============================================ */
.categories-section {
    background: var(--color-light);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.category-card {
    background: var(--color-white);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--color-white);
}

.category-card h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.category-count {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ============================================
   Featured Articles Section
   ============================================ */
.featured-section {
    padding: 60px 0;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.article-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 25px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    border-left: 4px solid var(--color-highlight);
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--color-accent);
}

.article-category {
    font-size: 0.75rem;
    color: var(--color-highlight);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 10px;
}

.article-card h3 {
    font-size: 1rem;
    color: var(--color-dark);
    margin-bottom: 15px;
    line-height: 1.4;
    flex-grow: 1;
}

.read-more {
    font-size: 0.85rem;
    color: var(--color-highlight);
    font-weight: 600;
}

/* ============================================
   Trust Section
   ============================================ */
.trust-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple-light));
    color: var(--color-white);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.trust-item {
    text-align: center;
    padding: 20px;
}

.trust-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.trust-icon svg {
    width: 35px;
    height: 35px;
    fill: var(--color-accent);
}

.trust-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.trust-item p {
    font-size: 0.9rem;
    opacity: 0.85;
    line-height: 1.5;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about p {
    margin-top: 15px;
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.6;
}

.footer-links h3,
.footer-trust h3 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--color-accent);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.footer-links ul li a:hover {
    color: var(--color-highlight);
}

.trust-badges {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.badge svg {
    fill: var(--color-accent);
}

.badge span {
    font-size: 0.75rem;
    opacity: 0.8;
}

.responsible-text {
    font-size: 0.8rem;
    opacity: 0.7;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 5px;
}

.disclaimer {
    font-size: 0.75rem;
}

/* ============================================
   Page Header (Category, Subcategory pages)
   ============================================ */
.page-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple-light));
    color: var(--color-white);
    padding: 40px 0;
}

.breadcrumb {
    margin-bottom: 15px;
    font-size: 0.9rem;
}

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

.breadcrumb span {
    margin: 0 8px;
    opacity: 0.6;
}

.page-header h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.page-description {
    opacity: 0.9;
    max-width: 600px;
}

/* ============================================
   Subcategories Grid
   ============================================ */
.subcategories-section {
    padding: 60px 0;
}

.subcategories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.subcategory-card {
    background: var(--color-white);
    padding: 25px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

.subcategory-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-bottom-color: var(--color-highlight);
}

.subcategory-card h3 {
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.article-count {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ============================================
   Articles Grid
   ============================================ */
.articles-section {
    padding: 60px 0;
    background: var(--color-light);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

/* ============================================
   Article Page
   ============================================ */
.article-page {
    padding: 40px 0 60px;
}

.article-header {
    margin-bottom: 40px;
}

.article-header h1 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-primary);
    line-height: 1.3;
}

.article-content {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    line-height: 1.8;
}

.article-content h2 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: 30px 0 15px;
}

.article-content h3 {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin: 25px 0 12px;
}

.article-content p {
    margin-bottom: 15px;
}

.article-content ul,
.article-content ol {
    margin: 15px 0;
    padding-left: 25px;
}

.article-content li {
    margin-bottom: 8px;
    list-style: disc;
}

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

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.article-content th,
.article-content td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: left;
}

.article-content th {
    background: var(--color-primary);
    color: var(--color-white);
}

.article-footer {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.article-nav {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* ============================================
   Error Page
   ============================================ */
.error-page {
    padding: 100px 0;
    text-align: center;
}

.error-content h1 {
    font-size: 8rem;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 10px;
}

.error-content h2 {
    font-size: 2rem;
    color: var(--color-gray);
    margin-bottom: 20px;
}

.error-content p {
    margin-bottom: 30px;
    color: var(--color-gray);
}

.error-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* ============================================
   No Content
   ============================================ */
.no-content {
    padding: 80px 0;
    text-align: center;
}

.no-content p {
    margin-bottom: 20px;
    color: var(--color-gray);
}

/* ============================================
   Keyword Modal
   ============================================ */
.keyword-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.keyword-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-container {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 40px;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.keyword-modal.active .modal-container {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: var(--color-light);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--color-highlight);
    color: var(--color-white);
}

#modalTitle {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-right: 40px;
}

.modal-content {
    line-height: 1.7;
}

.modal-loading {
    text-align: center;
    padding: 40px;
    color: var(--color-gray);
}

body.modal-open {
    overflow: hidden;
}

/* ============================================
   SEO Content Section
   ============================================ */
.seo-content-section {
    background: var(--color-light);
    padding: 60px 0;
}

.seo-content {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    max-width: 900px;
    margin: 0 auto;
}

.seo-content h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--color-highlight);
}

.seo-content h3 {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin: 30px 0 15px;
    position: relative;
    padding-left: 15px;
}

.seo-content h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: linear-gradient(180deg, var(--color-highlight), var(--color-accent));
    border-radius: 2px;
}

.seo-content p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: var(--color-dark);
}

.seo-content ul,
.seo-content ol {
    margin: 15px 0 20px;
    padding-left: 0;
}

.seo-content ul li {
    padding: 8px 0 8px 25px;
    position: relative;
    list-style: none;
}

.seo-content ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 16px;
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, var(--color-highlight), var(--color-accent));
    border-radius: 50%;
}

.seo-content ol {
    counter-reset: seo-counter;
}

.seo-content ol li {
    padding: 8px 0 8px 35px;
    position: relative;
    list-style: none;
    counter-increment: seo-counter;
}

.seo-content ol li::before {
    content: counter(seo-counter);
    position: absolute;
    left: 0;
    top: 8px;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple-light));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

.seo-content a {
    color: var(--color-highlight);
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: rgba(255, 107, 53, 0.3);
    text-underline-offset: 2px;
    transition: var(--transition);
}

.seo-content a:hover {
    color: var(--color-primary);
    text-decoration-color: var(--color-accent);
}

.seo-content strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-stats {
        gap: 30px;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bingo-ball {
        width: 50px;
        height: 50px;
        font-size: 1.4rem;
    }

    .bingo-ticket {
        transform: scale(0.75);
    }

    .ticket-left {
        left: 12%;
        top: 10%;
    }

    .ticket-right {
        right: 12%;
        bottom: 10%;
    }

    .mini-ball {
        width: 28px;
        height: 28px;
        font-size: 0.65rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .header-info {
        display: none;
    }

    .header-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-purple-light);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .header-nav.active {
        max-height: 500px;
    }

    .nav-menu {
        flex-direction: column;
        padding: 10px 0;
    }

    .nav-menu > li > a {
        padding: 12px 20px;
    }

    .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .has-submenu.open .submenu {
        max-height: 500px;
    }

    .hero {
        padding: 60px 0;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .categories-grid,
    .subcategories-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .trust-badges {
        justify-content: center;
    }

    .article-content {
        padding: 25px;
    }

    .modal-container {
        padding: 25px;
        width: 95%;
    }

    .bingo-ball,
    .bingo-ticket,
    .mini-ball,
    .star {
        display: none;
    }

    .seo-content {
        padding: 25px;
    }

    .seo-content h2 {
        font-size: 1.4rem;
    }

    .seo-content h3 {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .article-header h1 {
        font-size: 1.5rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* ============================================
   Animations on Scroll
   ============================================ */
.animated {
    opacity: 1 !important;
    transform: translateY(0) !important;
}