/* Responsive Design for Portfolio */

/* Large screens (1200px and up) */
@media (max-width: 1200px) {
    .projects-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .blogs-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }
    
    .profile-container {
        max-width: 800px;
        margin: 20px auto;
    }
}

/* Medium screens (768px to 1199px) */
@media (max-width: 768px) {
    /* Navbar */
    .navbar {
        padding: 10px 15px;
        flex-wrap: wrap;
    }
    
    .navbar .logo {
        font-size: 1.2rem;
    }
    
    .navbar .links {
        gap: 15px;
    }
    
    .navbar .links a {
        font-size: 0.85rem;
    }
    
    .navbar .button {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    /* Sections */
    .section {
        padding: 30px 0;
        height: auto;
        min-height: auto;
    }
    
    /* Profile Section */
    .profile-container {
        flex-direction: column;
        text-align: center;
        padding: 20px;
        margin: 20px 15px;
    }
    
    .profile-image {
        flex: none;
        margin-bottom: 15px;
    }
    
    .profile-image img {
        max-width: 180px;
    }
    
    .profile-info {
        flex: none;
        padding-left: 0;
    }
    
    .profile-info h2 {
        font-size: 18px;
        margin-bottom: 8px;
    }
    
    .profile-info p {
        font-size: 13px;
        margin-bottom: 10px;
    }
    
    .social-icons {
        margin-top: 10px;
    }
    
    .social-icons a {
        font-size: 20px;
        margin-right: 12px;
    }
    
    /* Projects Section */
    .projects-container {
        margin: 20px 15px;
    }
    
    .projects-container h2 {
        font-size: 1.6rem;
        margin-bottom: 15px;
    }
    
    .projects-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .project {
        /* Không ép position, min-width, min-height, float */
    }
    
    .project img {
        height: 160px;
        margin-bottom: 10px;
    }
    
    .project h3 {
        font-size: 1rem;
        margin-bottom: 6px;
    }
    
    .project p {
        font-size: 0.85rem;
        margin-bottom: 6px;
    }
    
    .project-link {
        font-size: 0.85rem;
        padding: 6px 12px;
        margin-top: 8px;
    }
    
    /* Blog Section */
    .blog-container {
        margin: 0 15px;
    }
    
    .blog-container h2 {
        font-size: 1.6rem;
        margin-bottom: 8px;
    }
    
    .blog-subtitle {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }
    
    .blogs-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .blog-card {
        margin: 0;
    }
    
    .blog-image {
        height: 160px;
    }
    
    .blog-content {
        padding: 15px;
    }
    
    .blog-date {
        font-size: 0.8rem;
        margin-bottom: 8px;
    }
    
    .blog-title {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .blog-summary {
        font-size: 0.85rem;
        margin-bottom: 12px;
    }
    
    .read-more-btn {
        font-size: 0.8rem;
    }
    
    .blog-actions {
        margin-top: 15px;
    }
    
    .view-all-blogs-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    /* Experience Section */
    .experience-container {
        margin: 20px 10px;
        padding: 0 10px;
    }
    
    .experience-container h2 {
        font-size: 1.6rem;
        margin-bottom: 20px;
    }
    
    .experience-item {
        padding: 15px;
        border-radius: 12px;
    }
    
    .experience-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .experience-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        width: 100%;
    }
    
    .company-logo {
        align-self: center;
    }
    
    .company-logo img {
        width: 50px;
        height: 50px;
    }
    
    .title-info {
        width: 100%;
        text-align: center;
    }
    
    .experience-title h3 {
        font-size: 1.2rem;
    }
    
    .company-name {
        font-size: 0.9rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .experience-period {
        font-size: 0.85rem;
        width: 100%;
        justify-content: center;
    }
    
    .experience-content {
        gap: 15px;
    }
    
    .highlight-achievement {
        flex-direction: column;
        padding: 12px;
        gap: 10px;
    }
    
    .highlight-achievement i {
        font-size: 20px;
        align-self: center;
    }
    
    .highlight-achievement h4 {
        font-size: 0.95rem;
        text-align: center;
    }
    
    .highlight-achievement p {
        font-size: 0.85rem;
        text-align: center;
        line-height: 1.5;
    }
    
    /* Experience Gallery Carousel */
    .experience-gallery {
        padding: 15px 10px;
        margin-top: 15px;
    }
    
    .experience-gallery h4 {
        font-size: 1rem;
        margin-bottom: 15px;
        text-align: center;
    }
    
    .gallery-carousel {
        gap: 8px;
    }
    
    .carousel-btn {
        width: 35px;
        height: 35px;
    }
    
    .carousel-btn i {
        font-size: 1rem;
    }
    
    .carousel-container {
        border-radius: 10px;
    }
    
    .carousel-slide img {
        height: 250px;
        border-radius: 10px;
    }
    
    .slide-caption {
        font-size: 0.85rem;
        padding: 20px 10px 10px;
    }
    
    .carousel-indicators {
        margin-top: 15px;
        gap: 8px;
    }
    
    .indicator {
        width: 10px;
        height: 10px;
    }
    
    /* Certifications Section */
    .certifications-container {
        margin: 20px 15px;
    }
    
    .certifications-container h2 {
        font-size: 1.6rem;
    }
    
    .cert-subtitle {
        font-size: 0.9rem;
    }
    
    .cert-categories {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .cert-category h3 {
        font-size: 1.2rem;
    }
    
    .cert-card {
        flex-direction: column;
        text-align: center;
        padding: 15px;
    }
    
    .cert-logo {
        margin-bottom: 10px;
    }
    
    .cert-info h4 {
        font-size: 1rem;
    }
    
    /* Education Section */
    .education-container {
        margin: 20px 15px;
    }
    
    .education-container h2 {
        font-size: 1.6rem;
    }
    
    .edu-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 15px;
    }
    
    .edu-icon {
        width: 50px;
        height: 50px;
    }
    
    .edu-icon i {
        font-size: 1.5rem;
    }
    
    .edu-info h3 {
        font-size: 1.2rem;
    }
    
    .edu-degree {
        font-size: 0.9rem;
    }
    
    .edu-period {
        font-size: 0.85rem;
    }
    
    .edu-details {
        padding: 15px;
    }
    
    .edu-highlight {
        font-size: 0.9rem;
        padding: 10px;
    }
    
    .coursework-tags {
        gap: 8px;
    }
    
    .coursework-tags span {
        font-size: 0.75rem;
        padding: 5px 10px;
    }
    
    /* Contact Section */
    .contact-container {
        margin: 0 15px;
    }
    
    .contact-container h2 {
        font-size: 1.6rem;
        margin-bottom: 8px;
    }
    
    .contact-container p {
        font-size: 0.9rem;
        margin-bottom: 15px;
    }
    
    .contact-methods {
        flex-direction: column;
        gap: 10px;
    }
    
    .contact-method {
        justify-content: center;
        font-size: 0.9rem;
    }
    
    .contact-method i {
        font-size: 16px;
        margin-right: 8px;
    }
    
    /* Footer */
    .footer-container {
        flex-direction: column;
        gap: 20px;
        padding: 20px 15px;
    }
    
    .footer-section {
        width: 100%;
        text-align: center;
    }
    
    .footer-section h2 {
        font-size: 1.2rem;
        margin-bottom: 10px;
    }
    
    .footer-section ul {
        gap: 6px;
    }
    
    .footer-section ul li a {
        font-size: 0.85rem;
    }
    
    .info p {
        font-size: 0.85rem;
        margin-bottom: 5px;
    }
    
    .cv-link {
        margin-top: 10px;
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .footer-bottom {
        padding: 10px 15px;
    }
    
    .footer-bottom p {
        font-size: 0.8rem;
    }
}

/* Small screens (480px to 767px) */
@media (max-width: 480px) {
    /* Hide Navbar */
    .navbar {
        display: none;
    }
    
    /* Sections */
    .section {
        padding: 20px 0;
        height: auto;
        min-height: auto;
    }
    
    /* Profile Section */
    .profile-container {
        margin: 15px 10px;
        padding: 15px;
    }
    
    .profile-image img {
        max-width: 140px;
    }
    
    .profile-info h2 {
        font-size: 16px;
        margin-bottom: 6px;
    }
    
    .profile-info p {
        font-size: 12px;
        margin-bottom: 8px;
    }
    
    .social-icons a {
        font-size: 18px;
        margin-right: 10px;
    }
    
    /* Projects Section */
    .projects-container {
        margin: 15px 10px;
    }
    
    .projects-container h2 {
        font-size: 1.4rem;
        margin-bottom: 12px;
    }
    
    .projects-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .project {
        /* Không ép position, min-width, min-height, float */
    }
    
    .project img {
        height: 140px;
        margin-bottom: 8px;
    }
    
    .project h3 {
        font-size: 0.9rem;
        margin-bottom: 5px;
    }
    
    .project p {
        font-size: 0.8rem;
        margin-bottom: 5px;
    }
    
    .project-link {
        font-size: 0.8rem;
        padding: 5px 10px;
        margin-top: 6px;
    }
    
    /* Blog Section */
    .blog-container {
        margin: 0 10px;
    }
    
    .blog-container h2 {
        font-size: 1.4rem;
        margin-bottom: 6px;
    }
    
    .blog-subtitle {
        font-size: 0.8rem;
        margin-bottom: 15px;
    }
    
    .blog-image {
        height: 140px;
    }
    
    .blog-content {
        padding: 12px;
    }
    
    .blog-date {
        font-size: 0.75rem;
        margin-bottom: 6px;
    }
    
    .blog-title {
        font-size: 1rem;
        margin-bottom: 6px;
    }
    
    .blog-summary {
        font-size: 0.8rem;
        margin-bottom: 10px;
    }
    
    .read-more-btn {
        font-size: 0.75rem;
    }
    
    .view-all-blogs-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    /* Contact Section */
    .contact-container {
        margin: 0 10px;
    }
    
    .contact-container h2 {
        font-size: 1.4rem;
        margin-bottom: 6px;
    }
    
    .contact-container p {
        font-size: 0.8rem;
        margin-bottom: 12px;
    }
    
    .contact-method {
        font-size: 0.8rem;
    }
    
    .contact-method i {
        font-size: 14px;
        margin-right: 6px;
    }
    
    /* Footer */
    .footer-container {
        padding: 15px 10px;
        gap: 15px;
    }
    
    .footer-section h2 {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .footer-section ul {
        gap: 5px;
    }
    
    .footer-section ul li a {
        font-size: 0.8rem;
    }
    
    .info p {
        font-size: 0.75rem;
        margin-bottom: 4px;
    }
    
    .cv-link {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .footer-bottom {
        padding: 8px 10px;
    }
    
    .footer-bottom p {
        font-size: 0.75rem;
    }
}

/* Extra small screens (320px to 479px) */
@media (max-width: 320px) {
    .navbar {
        padding: 6px 8px;
    }
    
    .navbar .logo {
        font-size: 1rem;
    }
    
    .navbar .links a {
        font-size: 0.75rem;
    }
    
    .profile-container {
        margin: 10px 8px;
        padding: 12px;
    }
    
    .profile-image img {
        max-width: 120px;
    }
    
    .profile-info h2 {
        font-size: 14px;
    }
    
    .profile-info p {
        font-size: 11px;
    }
    
    .projects-container,
    .blog-container,
    .contact-container {
        margin: 10px 8px;
    }
    
    .project,
    .blog-card {
        padding: 8px;
    }
    
    .project img,
    .blog-image {
        height: 120px;
    }
    
    /* Carousel responsive */
    .carousel-slide img {
        height: 250px;
    }
    
    .carousel-btn {
        width: 35px;
        height: 35px;
    }
    
    .carousel-btn i {
        font-size: 1rem;
    }
    
    .slide-caption {
        font-size: 0.85rem;
        padding: 20px 15px 10px;
    }
    
    .footer-container {
        padding: 12px 8px;
    }
}

/* Landscape orientation for mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .section {
        height: auto;
        min-height: auto;
        padding: 20px 0;
    }
    
    .profile-container {
        flex-direction: row;
        text-align: left;
        margin: 15px;
        padding: 15px;
    }
    
    .profile-image {
        flex: 40%;
        margin-bottom: 0;
    }
    
    .profile-image img {
        max-width: 120px;
    }
    
    .profile-info {
        flex: 60%;
        padding-left: 15px;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .blogs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .project,
    .blog-card {
        padding: 10px;
    }
    
    .project img,
    .blog-image {
        height: 120px;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .project img,
    .blog-image img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .project:hover,
    .blog-card:hover {
        transform: none;
    }
    
    .blog-card:hover .blog-image img {
        transform: none;
    }
}