/**
 * BingoEnLinea.org - Main Stylesheet
 * Color Palette: #4635B1 (violet), #B771E5 (purple), #AEEA94 (lime), #FFFBCA (cream)
 */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    --color-primary: #4635B1;
    --color-secondary: #B771E5;
    --color-accent: #AEEA94;
    --color-cream: #FFFBCA;
    --color-white: #ffffff;
    --color-dark: #1a1a2e;
    --color-gray: #6b7280;
    --color-light-gray: #f3f4f6;
    --color-purple-dark: #2d2270;
    --color-purple-light: #d4a5f9;

    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --font-heading: 'Arial Black', 'Arial Bold', Gadget, sans-serif;

    --shadow-sm: 0 1px 2px rgba(70, 53, 177, 0.1);
    --shadow-md: 0 4px 12px rgba(70, 53, 177, 0.15);
    --shadow-lg: 0 10px 30px rgba(70, 53, 177, 0.2);

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

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

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

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

ul, ol {
    list-style: none;
}

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

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    gap: 30px;
}

.logo img {
    height: 50px;
    width: auto;
}

.main-nav {
    flex: 1;
}

.nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

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

.nav-menu > li > a {
    display: block;
    padding: 10px 16px;
    color: var(--color-dark);
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.nav-menu > li > a:hover {
    background: var(--color-cream);
    color: var(--color-primary);
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    padding: 10px;
    z-index: 100;
}

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

.dropdown li a {
    display: block;
    padding: 10px 15px;
    color: var(--color-dark);
    font-size: 0.9rem;
    border-radius: var(--radius-sm);
    -webkit-tap-highlight-color: transparent;
}

.dropdown li a:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
}

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

.age-badge {
    background: linear-gradient(135deg, var(--color-accent), #7bc96f);
    color: var(--color-dark);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.85rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    -webkit-tap-highlight-color: transparent;
}

.menu-icon {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    position: relative;
    transition: var(--transition);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.menu-icon::before { top: -7px; }
.menu-icon::after { bottom: -7px; }

.menu-toggle[aria-expanded="true"] .menu-icon {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
    bottom: 0;
    transform: rotate(-45deg);
}

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

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-ball {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.ball-1 { background: var(--color-secondary); top: 10%; left: 5%; animation-delay: 0s; opacity: 0.6; }
.ball-2 { background: var(--color-accent); top: 60%; left: 8%; animation-delay: 1s; opacity: 0.5; width: 40px; height: 40px; }
.ball-3 { background: var(--color-cream); top: 30%; right: 45%; animation-delay: 2s; opacity: 0.4; width: 30px; height: 30px; }
.ball-4 { background: var(--color-secondary); bottom: 20%; right: 10%; animation-delay: 0.5s; opacity: 0.5; width: 50px; height: 50px; }
.ball-5 { background: var(--color-accent); top: 15%; right: 8%; animation-delay: 1.5s; opacity: 0.6; width: 45px; height: 45px; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(255,255,255,0.2);
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--color-white), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-cta .btn-outline {
    border-color: var(--color-white);
    color: var(--color-white);
}

.hero-cta .btn-outline:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

.hero-visual {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
}

.bingo-card-3d {
    perspective: 1000px;
}

.bingo-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 15px;
    box-shadow: var(--shadow-lg);
    transform: rotateY(-10deg) rotateX(5deg);
    transition: var(--transition);
}

.bingo-card:hover {
    transform: rotateY(0) rotateX(0);
}

.card-header {
    display: flex;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 10px;
    letter-spacing: 15px;
    padding-left: 15px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(5, 45px);
    gap: 5px;
}

.card-cell {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-cream);
    border-radius: var(--radius-sm);
    font-weight: 700;
    color: var(--color-dark);
    font-size: 0.9rem;
}

.card-cell.free {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    font-size: 0.7rem;
}

/* ============================================
   Carousel Section
   ============================================ */
.carousel-section {
    background: var(--color-purple-dark);
    padding: 25px 0;
    overflow: hidden;
}

.carousel-wrapper {
    overflow: hidden;
    padding: 8px 0;
    touch-action: pan-y;
}

.carousel-track {
    display: flex;
    gap: 12px;
    animation: scroll 40s linear infinite;
    will-change: transform;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

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

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

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

.carousel-tag {
    flex-shrink: 0;
    padding: 10px 22px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    font-family: inherit;
    -webkit-tap-highlight-color: transparent;
}

.carousel-tag:hover {
    background: var(--color-accent);
    color: var(--color-dark);
    border-color: var(--color-accent);
    transform: scale(1.05);
}

/* ============================================
   Categories Section
   ============================================ */
.categories-section {
    padding: 80px 0;
    background: var(--color-light-gray);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.section-header p {
    color: var(--color-gray);
    font-size: 1.1rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 30px;
    text-align: center;
}

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

.category-card {
    background: var(--color-white);
    padding: 35px 25px;
    border-radius: var(--radius-lg);
    text-align: center;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
    -webkit-tap-highlight-color: transparent;
}

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

.card-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--color-cream), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--color-primary);
}

.category-card h3 {
    font-size: 1.15rem;
    color: var(--color-dark);
    margin-bottom: 8px;
}

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

/* ============================================
   Articles Section
   ============================================ */
.articles-section {
    padding: 80px 0;
}

.articles-section.alt {
    background: var(--color-light-gray);
}

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

.article-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    border-left: 4px solid var(--color-secondary);
}

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

.card-label {
    font-size: 0.75rem;
    color: var(--color-secondary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.article-card h3 {
    font-size: 1.05rem;
    line-height: 1.5;
    margin-bottom: 15px;
    flex-grow: 1;
}

.article-card h3 a {
    color: var(--color-dark);
}

.article-card h3 a:hover {
    color: var(--color-primary);
}

.card-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
}

.articles-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.article-row {
    background: var(--color-white);
    padding: 20px 25px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.article-row:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.article-row h3 {
    font-size: 1rem;
    flex: 1;
}

.article-row h3 a {
    color: var(--color-dark);
}

.article-row h3 a:hover {
    color: var(--color-primary);
}

.row-link {
    color: var(--color-primary);
    font-weight: 600;
    white-space: nowrap;
}

/* ============================================
   Trust Section
   ============================================ */
.trust-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple-dark));
    color: var(--color-white);
}

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

.trust-card {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
}

.trust-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.trust-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--color-accent);
}

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

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

/* ============================================
   SEO Content Section
   ============================================ */
.seo-section {
    padding: 80px 0;
    background: var(--color-cream);
}

.seo-content {
    background: var(--color-white);
    padding: 50px;
    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: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--color-accent);
}

.seo-content h3 {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin: 30px 0 15px;
}

.seo-content p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.seo-content ul,
.seo-content ol {
    margin: 20px 0;
    padding-left: 25px;
}

.seo-content li {
    margin-bottom: 10px;
    list-style: disc;
}

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

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

.seo-content a:hover {
    color: var(--color-secondary);
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple-dark));
    color: var(--color-white);
    padding: 50px 0;
}

.page-header.article-header {
    padding: 40px 0;
}

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

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

.breadcrumb span {
    margin: 0 10px;
    opacity: 0.6;
}

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

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

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

.subcategories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.subcategory-card {
    background: var(--color-white);
    padding: 25px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-decoration: none;
    border: 2px solid transparent;
    -webkit-tap-highlight-color: transparent;
}

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

.subcategory-card h3 {
    color: var(--color-dark);
    font-size: 1rem;
    margin-bottom: 5px;
}

.subcategory-card span {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ============================================
   Article Content
   ============================================ */
.article-section {
    padding: 60px 0;
}

.article-content {
    background: var(--color-white);
    padding: 50px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    line-height: 1.8;
}

.article-content h1,
.article-content h2 {
    font-size: 1.6rem;
    color: var(--color-primary);
    margin: 35px 0 15px;
}

.article-content h3 {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin: 30px 0 12px;
}

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

.article-content ul,
.article-content ol {
    margin: 20px 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: 25px 0;
    display: block;
    overflow-x: auto;
}

.article-content th,
.article-content td {
    padding: 12px 15px;
    border: 1px solid #e5e7eb;
    text-align: left;
}

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

.article-content figure {
    margin: 25px 0;
}

.article-content figcaption {
    font-size: 0.85rem;
    color: var(--color-gray);
    font-style: italic;
    margin-top: 8px;
}

.article-footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #e5e7eb;
}

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

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

.error-content {
    max-width: 500px;
    margin: 0 auto;
}

.error-icon {
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.error-content h1 {
    font-size: 6rem;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 10px;
}

.error-content h2 {
    font-size: 1.5rem;
    color: var(--color-gray);
    margin-bottom: 15px;
}

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

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

/* ============================================
   Empty Section
   ============================================ */
.empty-section {
    padding: 80px 0;
    text-align: center;
}

.empty-section p {
    color: var(--color-gray);
    margin-bottom: 20px;
}

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

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand p {
    margin-top: 15px;
    font-size: 0.9rem;
    opacity: 0.7;
    line-height: 1.6;
}

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

.footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--color-accent);
}

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

.footer-col ul li a {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.footer-col ul li a:hover {
    color: var(--color-accent);
}

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

.footer-badges {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    opacity: 0.8;
}

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

.copyright {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 8px;
}

.disclaimer {
    font-size: 0.8rem;
    opacity: 0.5;
}

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

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

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.modal-dialog {
    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);
}

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

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: var(--color-light-gray);
    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-accent);
}

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

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

.loading-spinner {
    width: 40px;
    height: 40px;
    margin: 40px auto;
    border: 4px solid var(--color-light-gray);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

body.modal-open {
    overflow: hidden;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 2;
        margin-top: 40px;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

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

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

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

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

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

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

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

    .nav-menu {
        flex-direction: column;
        padding: 20px;
        gap: 0;
    }

    .nav-menu > li > a {
        padding: 12px 0;
    }

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

    .has-dropdown.open .dropdown {
        max-height: 500px;
        padding: 10px 0 10px 15px;
    }

    .age-badge {
        display: none;
    }

    .hero {
        padding: 60px 0 80px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-visual {
        display: none;
    }

    .floating-ball {
        display: none;
    }

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

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

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

    .footer-badges {
        flex-direction: column;
        gap: 15px;
    }

    .badge-item {
        justify-content: center;
    }

    .article-content,
    .seo-content {
        padding: 30px 20px;
    }

    .modal-dialog {
        padding: 30px 20px;
        width: 95%;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .logo img {
        max-width: 160px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .section-header h2,
    .section-title {
        font-size: 1.5rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .error-content h1 {
        font-size: 4rem;
    }

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

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

    .logo img {
        max-width: 140px;
    }
}

/* ============================================
   Safe Area Support
   ============================================ */
@supports (padding: env(safe-area-inset-bottom)) {
    .site-footer {
        padding-bottom: calc(30px + env(safe-area-inset-bottom));
    }

    .modal-dialog {
        padding-bottom: calc(40px + env(safe-area-inset-bottom));
    }

    .main-nav.active {
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .site-header,
    .site-footer,
    .hero-bg,
    .carousel-section,
    .modal,
    .menu-toggle {
        display: none !important;
    }

    .article-content,
    .seo-content {
        box-shadow: none;
        padding: 0;
    }

    a {
        text-decoration: underline;
    }
}