/* Enhanced Responsive Design CSS */

/* Mobile First Approach */

/* Base Mobile Styles (320px+) */
@media (max-width: 767px) {
    /* Container and Layout */
    .container {
        padding: 0 15px;
        max-width: 100%;
    }

    /* Navigation Mobile */
    .navbar {
        padding: 10px 0;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }

    .nav-container {
        padding: 0 15px;
        flex-wrap: wrap;
    }

    .nav-logo a {
        font-size: 1.2rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-darker);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding: 2rem 0;
        transition: left 0.3s ease;
        z-index: 1000;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        width: 80%;
        text-align: center;
        padding: 1rem;
        margin: 0.5rem 0;
        border-radius: var(--radius-normal);
        border: 1px solid transparent;
        transition: all var(--transition-normal) ease;
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--bg-card);
        border-color: var(--primary-color);
        transform: translateY(-2px);
    }

    .nav-toggle {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        padding: 5px;
    }

    .nav-toggle .bar {
        width: 25px;
        height: 3px;
        background: var(--text-primary);
        margin: 3px 0;
        transition: 0.3s;
        border-radius: 2px;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* Hero Section Mobile */
    .hero {
        padding: 100px 0 40px;
        min-height: 100vh;
        text-align: center;
    }

    .hero-content {
        gap: 2rem;
    }

    .profile-img {
        width: 180px;
        height: 180px;
        margin: 0 auto 2rem;
    }

    .hero-title {
        font-size: 2.2rem;
        margin-bottom: 1rem;
        line-height: 1.2;
    }

    .terminal-container {
        margin: 1.5rem 0;
    }

    .terminal-window-hero {
        max-width: 90%;
        font-size: 0.8rem;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        margin: 2rem 0;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .social-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem;
    }

    .social-link {
        min-width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        min-height: 50px;
        font-size: 1rem;
    }

    /* Skills Section Mobile */
    .skills-container {
        gap: 2rem;
    }

    .skill-category {
        margin-bottom: 2rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .skill-item {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
    }

    .skill-icon {
        margin: 0 auto 0.5rem;
    }

    .skill-bar {
        width: 100%;
        margin-top: 0.5rem;
    }

    /* About Section Mobile */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .about-highlights {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .highlight-item {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
        padding: 1.5rem;
    }

    .code-window {
        display: none; /* Hide complex code animation on mobile */
    }

    /* Experience Timeline Mobile */
    .timeline {
        position: relative;
        padding-left: 1rem;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        margin-left: 2rem;
        margin-bottom: 2rem;
    }

    .timeline-marker {
        left: -2.5rem;
        width: 40px;
        height: 40px;
    }

    .timeline-content {
        padding: 1rem;
    }

    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .timeline-skills {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    /* Portfolio Grid Mobile */
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .portfolio-filters {
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
    }

    .filter-btn {
        font-size: 0.9rem;
        padding: 0.6rem 1rem;
    }

    .portfolio-item {
        margin-bottom: 1rem;
    }

    .portfolio-overlay .portfolio-links { display: none; }

    .portfolio-btn {
        width: 100%;
        justify-content: center;
    }

    /* Contact Section Mobile */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-form {
        order: 2;
    }

    .contact-info-section {
        order: 1;
    }

    .contact-info {
        gap: 1.5rem;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
        padding: 1.5rem;
    }

    .quick-contact-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    .btn-submit {
        width: 100%;
        min-height: 50px;
    }

    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-social {
        justify-content: center !important;
    }
}

/* Tablet Styles (768px - 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }

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

    .contact-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

/* Large Tablet/Small Desktop (1025px - 1200px) */
@media (min-width: 1025px) and (max-width: 1200px) {
    .container {
        max-width: 1000px;
        padding: 0 40px;
    }

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

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

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

/* Extra Large Screens (1400px+) */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 5rem;
    }

    .section-title {
        font-size: 3.5rem;
    }

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

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

/* Landscape Mobile Optimization */
@media (max-width: 767px) and (orientation: landscape) {
    .hero {
        min-height: 70vh;
        padding: 80px 0 20px;
    }

    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }

    .nav-menu {
        height: calc(100vh - 60px);
        top: 60px;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .scroll-indicator,
    .back-to-top,
    .particles-js,
    .loading-screen {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: 2rem 0;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .section {
        page-break-inside: avoid;
        margin-bottom: 2rem;
    }
}

/* Focus Management for Mobile */
@media (max-width: 767px) {
    .nav-link:focus,
    .btn:focus,
    .social-link:focus,
    .portfolio-btn:focus {
        outline: 2px solid var(--primary-color);
        outline-offset: 2px;
    }

    /* Touch Target Optimization */
    .nav-link,
    .btn,
    .social-link,
    .portfolio-btn,
    .filter-btn {
        min-height: 44px;
        min-width: 44px;
    }

    /* Improved Touch Interactions */
    .portfolio-item {
        cursor: pointer;
    }

    .portfolio-overlay {
        opacity: 1;
        background: rgba(0, 0, 0, 0.9);
    }

    .portfolio-info {
        transform: translateY(0);
    }
}