/* For large desktops */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
    
    .hero-text h1 {
        font-size: 4.2rem;
    }
    
    .hero-text .lead {
        font-size: 1.6rem;
    }
    
    .btn-lg {
        padding: 1rem 2.5rem;
    }
    
    .portfolio-container {
        margin-top: 2rem;
    }
}

/* For medium desktops */
@media (max-width: 1199px) {
    .hero-text h1 {
        font-size: 3.5rem;
    }
    
    .section-padding {
        padding: 7rem 0;
    }
}

/* For tablets and small desktops */
@media (max-width: 992px) {
    .navbar {
        padding: 0.8rem 1rem;
    }
    
    .navbar-brand {
        font-size: 1.6rem;
    }

    .hero-section {
        height: auto;
        min-height: 90vh;
    }

    .hero-text h1 {
        font-size: 3rem;
    }
    
    .hero-text .lead {
        font-size: 1.2rem;
        margin-bottom: 2rem;
    }
    
    .btn-lg {
        padding: 0.7rem 1.8rem;
        font-size: 1rem;
    }

    #portfolio, #about, #contact {
        padding: 6rem 0;
    }
    
    #portfolio h2, #about h2, #contact h2 {
        font-size: 2.2rem;
    }
    
    .portfolio-filters {
        margin-bottom: 2rem;
    }
    
    .btn-filter {
        padding: 8px 20px;
        margin-bottom: 10px;
    }
    
    .card-body {
        padding: 1.5rem;
    }
}

/* For tablets */
@media (max-width: 768px) {
    .navbar {
        background-color: rgba(12, 17, 26, 0.95);
        padding: 0.6rem 1rem;
    }
    
    .navbar-collapse {
        background-color: rgba(12, 17, 26, 0.98);
        border-radius: 0 0 10px 10px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        padding: 1rem;
        margin-top: 0.5rem;
        max-height: 80vh;
        overflow-y: auto;
    }
    
    .navbar-nav {
        padding: 0.5rem 0;
    }
    
    .nav-item {
        text-align: center;
        margin: 0.5rem 0;
    }
    
    .navbar-dark .navbar-nav .nav-link {
        padding: 0.8rem 1rem;
    }
    
    .navbar-dark .navbar-nav .nav-link::after {
        bottom: 5px;
    }
    
    .navbar-toggler {
        border: none;
        padding: 0.4rem 0;
    }
    
    .navbar-toggler:focus {
        outline: none;
        box-shadow: none;
    }

    .hero-section {
        text-align: center;
        padding-top: 80px;
        height: 100vh;
    }
    
    .hero-text {
        padding: 2rem 1rem;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-text .lead {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-bg {
        object-position: center;
    }
    
    #portfolio, #about, #contact {
        padding: 5rem 0;
    }
    
    .portfolio-card {
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .social-icon {
        width: 40px;
        height: 40px;
        line-height: 40px;
        margin: 0 8px;
    }
    
    /* Improve touch interactions */
    .portfolio-card.touch-hover {
        transform: translateY(-5px);
    }
    
    .portfolio-card.touch-active .card-overlay {
        opacity: 1;
    }
    
    .portfolio-card.touch-active .card-img-top {
        transform: scale(1.1);
    }
    
    .btn {
        padding: 0.6rem 1.5rem;
    }
    
    /* Enhance scroll animations */
    .container > h2.visible,
    .portfolio-item.visible,
    .social-links.visible {
        animation: fadeInUp 0.8s ease forwards;
    }
}

/* For mobile phones */
@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    .navbar {
        padding: 0.4rem 0.5rem;
    }
    .navbar-toggler {
        font-size: 1.1rem;
        padding: 0.3rem 0.6rem;
    }
    .hero-section {
        padding-top: 90px;
        min-height: 60vh;
        height: auto;
        background-size: cover;
        background-position: center;
        text-align: center;
    }
    .hero-text {
        padding: 1.2rem 0.5rem;
    }
    .hero-text h1 {
        font-size: 1.45rem;
        line-height: 1.2;
        margin-bottom: 1.2rem;
    }
    .hero-text .lead {
        font-size: 1rem;
        margin-bottom: 1.2rem;
    }
    .btn-lg, .btn {
        padding: 0.7rem 1.2rem;
        font-size: 1rem;
        border-radius: 2rem;
        margin-bottom: 0.6rem;
        width: 100%;
        box-sizing: border-box;
    }
    .portfolio-container {
        margin-top: 1rem;
    }
    .portfolio-item {
        margin-bottom: 2rem;
        width: 100%;
        max-width: 100%;
        padding-left: 0;
        padding-right: 0;
    }
    .portfolio-card {
        max-width: 100%;
        margin-left: 0;
        margin-right: 0;
        box-shadow: 0 4px 20px rgba(0,0,0,0.13);
        border-radius: 1rem;
    }
    .card-body {
        padding: 1rem 0.7rem;
    }
    .portfolio-filters {
        flex-direction: column;
    }
    .btn-filter {
        width: 100%;
        margin-bottom: 0.7rem;
    }
    #portfolio, #about, #contact {
        padding: 3.5rem 0;
    }
    #portfolio h2, #about h2, #contact h2 {
        font-size: 1.3rem;
        margin-bottom: 1.2rem;
    }
    .social-icon {
        width: 36px;
        height: 36px;
        line-height: 36px;
        font-size: 1.2rem;
        margin: 0 5px;
    }
    .contact-form input, .contact-form textarea {
        font-size: 1rem;
        padding: 0.6rem 0.9rem;
    }
    .footer {
        font-size: 0.95rem;
        padding: 1.2rem 0.4rem;
    }
}

/* For small mobile phones */
@media (max-width: 400px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .hero-text h1 {
        font-size: 1.8rem;
    }
    
    .hero-text .lead {
        font-size: 0.9rem;
    }
    
    .btn-lg {
        padding: 0.5rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .portfolio-item {
        padding-left: 8px;
        padding-right: 8px;
    }
    
    .form-control {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
}

/* High resolution screens and Retina displays */
@media only screen and (-webkit-min-device-pixel-ratio: 2),
       only screen and (min-resolution: 192dpi) {
    .hero-bg {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
}

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