/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --mint: #20C6B7;
    --soft-gray: #A7B0BD;
    --graphite: #1A2230;
    --white: #FFFFFF;
    --accent-blue: #3AA7FF;
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --base-size: 1rem;
    --scale-ratio: 1.2;
    --scale-sm: calc(var(--base-size) * var(--scale-ratio));
    --scale-md: calc(var(--base-size) * var(--scale-ratio) * var(--scale-ratio));
    --scale-lg: calc(var(--base-size) * var(--scale-ratio) * var(--scale-ratio) * var(--scale-ratio));
    --scale-xl: calc(var(--base-size) * var(--scale-ratio) * var(--scale-ratio) * var(--scale-ratio) * var(--scale-ratio));
    
    /* Spacing */
    --container-max-width: 1200px;
    --gutter: clamp(20px, 4vw, 24px);
    --section-padding: clamp(4rem, 8vw, 8rem);
    
    /* Shadows */
    --shadow-card: 0 12px 28px rgba(0, 0, 0, 0.18);
    --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.24);
    
    /* Transitions */
    --transition-fast: 160ms ease;
    --transition-normal: 200ms ease;
    
    /* Border Radius */
    --radius-card: 16px;
    --radius-small: 8px;
    
    /* Grid */
    --grid-columns: 12;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-system);
    font-size: var(--base-size);
    line-height: 1.6;
    color: var(--graphite);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* Section */
.section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: var(--scale-lg);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-description {
    font-size: var(--scale-sm);
    color: var(--soft-gray);
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-small);
    font-size: var(--base-size);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 44px;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: #1fb5a5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-primary:focus {
    outline: 3px solid var(--accent-blue);
    outline-offset: 2px;
}

.btn-secondary {
    background-color: transparent;
    color: var(--graphite);
    border: 2px solid var(--soft-gray);
}

.btn-secondary:hover {
    background-color: var(--soft-gray);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-secondary:focus {
    outline: 3px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--scale-md);
    font-weight: 700;
    color: var(--graphite);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.nav-logo:hover {
    color: var(--mint);
}

.nav-logo svg {
    color: var(--mint);
}

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

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--graphite);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--mint);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--mint);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 1rem;
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    list-style: none;
    z-index: 100;
}

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

.dropdown-link {
    display: block;
    padding: 0.5rem 0;
    color: var(--graphite);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.dropdown-link:hover {
    color: var(--mint);
    padding-left: 0.5rem;
}

.nav-toggle,
.nav-close {
    display: none;
    background: none;
    border: none;
    color: var(--graphite);
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle:hover,
.nav-close:hover {
    color: var(--mint);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(26, 34, 48, 0.8) 0%,
        rgba(32, 198, 183, 0.7) 100%
    );
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.hero-title {
    font-size: var(--scale-xl);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-description {
    font-size: var(--scale-md);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Stats Section */
.stats {
    background-color: #f8fafc;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.stat-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--mint);
}

.stat-number {
    font-size: var(--scale-lg);
    font-weight: 800;
    color: var(--graphite);
    margin-bottom: 0.5rem;
}

.stat-text {
    font-size: var(--scale-sm);
    color: var(--soft-gray);
    font-weight: 500;
}

/* Featured Articles */
.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.featured-card {
    background-color: var(--white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.featured-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.featured-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

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

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

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--mint);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.featured-content {
    padding: 1.5rem;
}

.featured-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.category {
    background-color: rgba(32, 198, 183, 0.1);
    color: var(--mint);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
}

.read-time {
    color: var(--soft-gray);
}

.featured-title {
    font-size: var(--scale-md);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.featured-description {
    color: var(--soft-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.featured-link {
    color: var(--mint);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.featured-link:hover {
    color: #1fb5a5;
}

/* Advantages */
.advantages {
    background-color: #f8fafc;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-normal);
}

.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.advantage-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--mint);
}

.advantage-title {
    font-size: var(--scale-md);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 1rem;
}

.advantage-description {
    color: var(--soft-gray);
    line-height: 1.6;
}

/* Filter Chips */
.filter-chips {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.chip {
    padding: 0.5rem 1rem;
    border: 2px solid var(--soft-gray);
    background-color: transparent;
    color: var(--graphite);
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.chip:hover,
.chip.active {
    background-color: var(--mint);
    color: var(--white);
    border-color: var(--mint);
}

/* Popular Articles */
.popular-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.popular-card {
    background-color: var(--white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.popular-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

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

.popular-content {
    padding: 1.5rem;
}

.popular-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.popular-title {
    font-size: var(--scale-sm);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.popular-description {
    color: var(--soft-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.popular-link {
    color: var(--mint);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.popular-link:hover {
    color: #1fb5a5;
}

/* Reviews */
.reviews {
    background-color: #f8fafc;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.review-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-normal);
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.review-content {
    margin-bottom: 1.5rem;
}

.review-text {
    font-style: italic;
    color: var(--soft-gray);
    line-height: 1.6;
    font-size: var(--scale-sm);
}

.review-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.review-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.review-name {
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 0.25rem;
}

.review-role {
    color: var(--soft-gray);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.review-rating {
    color: #ffc107;
    font-size: 1.25rem;
}

/* Latest Articles */
.latest-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.latest-card {
    background-color: var(--white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.latest-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.latest-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.latest-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.latest-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background-color: var(--accent-blue);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.latest-content {
    padding: 1.5rem;
}

.latest-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.latest-title {
    font-size: var(--scale-sm);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.latest-description {
    color: var(--soft-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.latest-link {
    color: var(--mint);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.latest-link:hover {
    color: #1fb5a5;
}

/* Categories */
.categories {
    background-color: #f8fafc;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.category-card {
    display: block;
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    text-decoration: none;
    transition: all var(--transition-normal);
    text-align: center;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.category-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--mint);
}

.category-title {
    font-size: var(--scale-sm);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 1rem;
}

.category-description {
    color: var(--soft-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.category-count {
    font-size: 0.875rem;
    color: var(--mint);
    font-weight: 600;
}

/* Newsletter */
.newsletter {
    background: linear-gradient(135deg, var(--graphite) 0%, var(--mint) 100%);
    color: var(--white);
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

.newsletter-text {
    text-align: center;
}

.newsletter-title {
    font-size: var(--scale-lg);
    font-weight: 800;
    margin-bottom: 1rem;
}

.newsletter-description {
    font-size: var(--scale-sm);
    opacity: 0.9;
    line-height: 1.6;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--radius-small);
    font-size: var(--base-size);
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--graphite);
}

.form-input:focus {
    outline: 3px solid var(--accent-blue);
    background-color: var(--white);
}

.form-message {
    text-align: center;
    padding: 0.75rem;
    border-radius: var(--radius-small);
    font-weight: 600;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.form-message.success {
    background-color: #10b981;
    color: var(--white);
    opacity: 1;
}

.form-message.error {
    background-color: #ef4444;
    color: var(--white);
    opacity: 1;
}

/* Footer */
.footer {
    background-color: var(--graphite);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--scale-md);
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo svg {
    color: var(--mint);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.footer-contact {
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact p {
    margin-bottom: 0.5rem;
}

.footer-title {
    font-size: var(--scale-sm);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--mint);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--mint);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--mint);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #1fb5a5;
    transform: translateY(-2px);
}

.back-to-top:focus {
    outline: 3px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-normal);
}

.preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

.preloader-content {
    text-align: center;
    color: var(--graphite);
}

.coffee-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--soft-gray);
    border-top: 3px solid var(--mint);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero-bg::after {
        background: rgba(26, 34, 48, 0.9);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .hero-title {
        font-size: var(--scale-lg);
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .form-group {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 4rem 0;
        --gutter: 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        justify-content: center;
        transition: right var(--transition-normal);
        z-index: 1000;
    }
    
    .nav-menu.show {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .nav-close {
        display: block;
        position: absolute;
        top: 2rem;
        right: 2rem;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero {
        min-height: 80vh;
        text-align: center;
    }
    
    .hero-title {
        font-size: var(--scale-md);
    }
    
    .hero-description {
        font-size: var(--base-size);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .featured-grid,
    .popular-grid,
    .latest-grid,
    .advantages-grid,
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .filter-chips {
        gap: 0.5rem;
    }
    
    .chip {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero-title {
        font-size: var(--scale-sm);
    }
    
    .hero-description {
        font-size: var(--base-size);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .nav-menu,
    .newsletter,
    .back-to-top,
    .preloader {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .hero-bg {
        display: none;
    }
    
    .hero-content {
        color: var(--graphite);
    }
    
    .section {
        padding: 2rem 0;
        break-inside: avoid;
    }
    
    .featured-card,
    .popular-card,
    .latest-card {
        break-inside: avoid;
        margin-bottom: 1rem;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --mint: #00a896;
        --soft-gray: #495057;
        --graphite: #212529;
        --accent-blue: #0056b3;
    }
    
    .btn-primary {
        border: 2px solid var(--graphite);
    }
    
    .nav-link:focus,
    .btn:focus,
    .form-input:focus {
        outline: 3px solid var(--accent-blue);
    }
}

/* Focus Visible */
.focus-visible {
    outline: 3px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--mint);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1fb5a5;
}

/* Selection */
::selection {
    background-color: rgba(32, 198, 183, 0.2);
    color: var(--graphite);
}

::-moz-selection {
    background-color: rgba(32, 198, 183, 0.2);
    color: var(--graphite);
}

/* Additional styles for category pages */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.article-card {
    background-color: var(--white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.article-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

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

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

.article-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--mint);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.article-content {
    padding: 1.5rem;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.article-title {
    font-size: var(--scale-md);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.article-description {
    color: var(--soft-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.article-link {
    color: var(--mint);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.article-link:hover {
    color: #1fb5a5;
}

/* Category Navigation */
.category-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.category-nav-card {
    display: block;
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    text-decoration: none;
    transition: all var(--transition-normal);
    text-align: center;
}

.category-nav-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.category-nav-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--mint);
}

.category-nav-title {
    font-size: var(--scale-sm);
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 1rem;
}

.category-nav-description {
    color: var(--soft-gray);
    line-height: 1.6;
}

/* Responsive adjustments for category pages */
@media (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .category-nav-grid {
        grid-template-columns: 1fr;
    }
    
    .article-title {
        font-size: var(--scale-sm);
    }
    
    .category-nav-title {
        font-size: var(--scale-sm);
    }
}

/* Footer links active state */
.footer-links .active {
    color: var(--mint);
    font-weight: 600;
}

/* Additional accessibility styles */
.focus-visible {
    outline: 3px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Cookie consent banner */
.cookie-consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--graphite);
    color: var(--white);
    padding: 1rem;
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-consent-banner.show {
    transform: translateY(0);
}

.cookie-consent-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.cookie-consent-content p {
    margin: 0;
    flex: 1;
}

.cookie-consent-buttons {
    display: flex;
    gap: 1rem;
}

.cookie-consent-buttons .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .cookie-consent-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cookie-consent-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .cookie-consent-buttons .btn {
        flex: 1;
        max-width: 120px;
    }
}

/* Connection status */
.connection-status {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 9999;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    color: white;
    font-weight: 600;
}

.connection-status.show {
    transform: translateX(0);
}

.connection-status.success {
    background-color: #10b981;
}

.connection-status.error {
    background-color: #ef4444;
}