/* Responsividade para tablets */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }

    .content-grid {
        grid-template-columns: 1fr 300px;
        gap: 20px;
    }

    .highlight-news {
        grid-column: 1;
    }

    .secondary-news {
        grid-column: 2;
    }

    .trending-news {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .article-title {
        font-size: 24px;
    }

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

    .search-bar {
        width: 250px;
    }

    .nav-menu {
        gap: 15px;
    }
}

/* Responsividade para tablets pequenos */
@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .secondary-news {
        grid-column: 1;
    }

    .trending-news {
        grid-column: 1;
    }

    .header-main .container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .search-bar {
        width: 100%;
        max-width: 300px;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        padding: 20px;
        gap: 0;
    }

        .nav-menu.active {
            display: flex;
        }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-link {
        padding: 12px 0;
        border-bottom: 1px solid #e5e7eb;
    }

        .nav-link:last-child {
            border-bottom: none;
        }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .date-weather {
        flex-direction: column;
        gap: 5px;
        font-size: 12px;
    }

    .user-actions {
        gap: 5px;
    }

    .btn-login, .btn-subscribe {
        padding: 4px 12px;
        font-size: 12px;
    }
}

/* Responsividade para celulares */
@media (max-width: 480px) {
    .logo h1 {
        font-size: 24px;
    }

    .article-title {
        font-size: 20px;
    }

    .article-content {
        padding: 20px;
    }

    .article-image img {
        height: 250px;
    }

    .article-summary {
        font-size: 14px;
    }

    .article-meta {
        flex-direction: column;
        gap: 8px;
    }

    .secondary-article img {
        height: 120px;
    }

    .article-info {
        padding: 15px;
    }

        .article-info h3 {
            font-size: 14px;
        }

    .category-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .category-title {
        font-size: 20px;
    }

    .category-article h3 {
        font-size: 16px;
        margin: 15px 15px 8px 15px;
    }

    .category-article p {
        font-size: 13px;
        margin: 0 15px 15px 15px;
    }

    .trending-news {
        padding: 20px;
    }

    .aside-title {
        font-size: 16px;
    }

    .header-top .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .main-content {
        padding: 20px 0;
    }

    .category-sections {
        margin-top: 30px;
    }

    .main-footer {
        padding: 30px 0 15px 0;
        margin-top: 50px;
    }
}

/* Responsividade para telas muito pequenas */
@media (max-width: 320px) {
    .container {
        padding: 0 10px;
    }

    .logo h1 {
        font-size: 20px;
    }

    .article-title {
        font-size: 18px;
    }

    .article-content {
        padding: 15px;
    }

    .article-image img {
        height: 200px;
    }

    .search-bar {
        max-width: 250px;
    }

    .nav-link {
        font-size: 14px;
    }

    .category-title {
        font-size: 18px;
    }

    .trending-news {
        padding: 15px;
    }

    .secondary-article img {
        height: 100px;
    }

    .article-info {
        padding: 12px;
    }

        .article-info h3 {
            font-size: 13px;
        }

        .article-info p {
            font-size: 12px;
        }
}

/* Orientação paisagem para celulares */
@media (max-width: 768px) and (orientation: landscape) {
    .article-image img {
        height: 300px;
    }

    .secondary-article img {
        height: 140px;
    }

    .nav-menu {
        max-height: 60vh;
        overflow-y: auto;
    }
}

/* Ajustes para telas grandes */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }

    .content-grid {
        grid-template-columns: 2fr 1fr 300px;
    }

    .article-title {
        font-size: 32px;
    }

    .article-summary {
        font-size: 18px;
    }

    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Ajustes de impressão */
@media print {
    .main-header, .main-footer, .search-bar, .user-actions, .social-links {
        display: none;
    }

    .main-content {
        padding: 20px 0;
    }

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

    .article-image img {
        height: auto;
        max-height: 300px;
    }

    .category-section {
        page-break-inside: avoid;
    }
}

/* Acessibilidade */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Alto contraste */
@media (prefers-contrast: high) {
    .main-header, .main-footer, .main-article, .secondary-article,
    .trending-news, .category-article {
        border: 2px solid #000;
    }

    .nav-link, .btn-login, .btn-subscribe, .see-more, .footer-section a {
        text-decoration: underline;
    }
}

/* Modo escuro */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e5e7eb;
    }

    .main-header, .main-article, .secondary-article, .trending-news,
    .category-article {
        background: #2d3748;
        color: #f7fafc;
    }

    .article-title, .category-title {
        color: #f7fafc;
    }

    .article-summary, .article-info p, .category-article p {
        color: #cbd5e0;
    }

    .nav-link {
        color: #cbd5e0;
    }

        .nav-link:hover, .nav-link.active {
            background: #4a5568;
        }
}