/* ============================
   RESPONSIVE DESIGN
============================ */

/* Extra Large Screens */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large Screens */
@media (max-width: 1199px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-avatar {
        width: 280px;
        height: 280px;
    }
    
    .floating-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* Medium Screens */
@media (max-width: 991px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 2.5rem;
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-avatar {
        width: 250px;
        height: 250px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skills-categories {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

/* Small Screens */
@media (max-width: 767px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
        --spacing-md: 1.5rem;
    }
    
    /* Global mobile improvements */
    html {
        scroll-padding-top: 80px;
    }
    
    section {
        scroll-margin-top: 80px;
    }
    
    /* Navigation Mobile */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-card);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-lg);
        transition: var(--transition);
        box-shadow: var(--shadow);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: var(--spacing-sm) 0;
    }
    
    .nav-link {
        font-size: 1.2rem;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    /* Hero Section Mobile */
    .hero {
        padding-top: 70px;
        min-height: auto;
        padding-bottom: var(--spacing-xl);
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .stat {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .hero-avatar {
        width: 200px;
        height: 200px;
        margin-bottom: var(--spacing-md);
    }
    
    .floating-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    /* Sections Mobile */
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    /* About Section Mobile */
    .about {
        padding-top: calc(70px + var(--spacing-lg));
        scroll-margin-top: 80px;
    }
    
    .story-card {
        padding: var(--spacing-md);
    }
    
    .timeline-item {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .timeline-item::before {
        display: none;
    }
    
    .timeline-year {
        align-self: flex-start;
    }
    
    .values {
        grid-template-columns: 1fr;
    }
    
    /* Projects Section Mobile */
    .projects {
        scroll-margin-top: 80px;
    }
    
    .project-filters {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .project-filters::-webkit-scrollbar {
        display: none;
    }
    
    .filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
        min-width: fit-content;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .project-card {
        max-width: 100%;
    }
    
    .project-image {
        height: 180px;
    }
    
    .project-content {
        padding: var(--spacing-sm);
    }
    
    .project-title {
        font-size: 1.1rem;
    }
    
    .project-tech {
        gap: 5px;
    }
    
    .tech-tag {
        font-size: 0.75rem;
        padding: 2px 6px;
    }
    
    /* Skills Section Mobile */
    .skills {
        scroll-margin-top: 80px;
    }
    
    .skills-categories {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs);
        margin-bottom: var(--spacing-md);
    }
    
    .skill-category {
        padding: var(--spacing-xs);
        font-size: 0.9rem;
        text-align: center;
    }
    
    .skill-category i {
        font-size: 1.2rem;
        margin-bottom: var(--spacing-xs);
        display: block;
    }
    
    .skills-grid {
        padding: 0;
    }
    
    .skill-item {
        margin-bottom: var(--spacing-sm);
    }
    
    .skill-header {
        font-size: 0.9rem;
    }
    
    .soft-skills-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .soft-skill {
        text-align: center;
        padding: var(--spacing-sm);
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Contact Section Mobile */
    .contact {
        scroll-margin-top: 80px;
    }
    
    .contact-method {
        align-items: flex-start;
        text-align: left;
    }
    
    .contact-form {
        padding: var(--spacing-md);
    }
    
    .form-group {
        margin-bottom: var(--spacing-sm);
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 1rem;
    }
    
    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-section h4 {
        margin-bottom: var(--spacing-sm);
    }
    
    .footer-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }
    
    .social-links {
        justify-content: center;
        margin-top: var(--spacing-sm);
    }
    
    .footer-quote {
        max-width: 100%;
        margin: 0;
    }
}

/* Extra Small Screens */
@media (max-width: 575px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 1.5rem;
        --spacing-md: 1rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-avatar {
        width: 180px;
        height: 180px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .story-card {
        padding: var(--spacing-sm);
    }
    
    .project-image {
        height: 160px;
    }
    
    .skills-categories {
        grid-template-columns: 1fr;
    }
    
    .skill-category {
        justify-content: center;
    }
    
    .contact-form {
        padding: var(--spacing-sm);
    }
    
    .btn {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }
}

/* Landscape Phone Orientation */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-content {
        gap: var(--spacing-md);
    }
    
    .hero-avatar {
        width: 150px;
        height: 150px;
    }
    
    .floating-elements {
        display: none;
    }
    
    .nav-menu {
        height: calc(100vh - 60px);
        top: 60px;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .floating-elements,
    .back-to-top,
    .project-overlay,
    .contact-form,
    #loading-screen {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-md) 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    section {
        padding: var(--spacing-md) 0;
        page-break-inside: avoid;
    }
    
    .project-card {
        page-break-inside: avoid;
        margin-bottom: var(--spacing-md);
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .section-title {
        font-size: 18pt;
    }
    
    .hero-title {
        font-size: 24pt;
    }
}

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

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .hover-lift:hover,
    .hover-scale:hover,
    .hover-rotate:hover {
        transform: none;
    }
    
    .project-overlay {
        opacity: 1;
        background: rgba(255, 107, 53, 0.1);
    }
    
    .project-links {
        position: static;
        margin-top: var(--spacing-sm);
        justify-content: center;
    }
    
    .project-link {
        position: relative;
        background: var(--primary-color);
        color: white;
    }
    
    .image-overlay {
        transform: translateY(0);
        position: static;
        background: var(--bg-secondary);
        color: var(--text-primary);
    }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .floating-icon,
    .morphing-shape,
    .gradient-animation {
        animation: none !important;
    }
    
    .typing-text {
        border-right: none;
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --shadow: 0 2px 8px rgba(0,0,0,0.5);
        --shadow-hover: 0 4px 16px rgba(0,0,0,0.6);
    }
    
    .btn-outline {
        border-width: 3px;
    }
    
    .nav-link,
    .project-link,
    .filter-btn {
        border: 2px solid currentColor;
    }
}

/* Dark Mode Responsive Adjustments */
.dark-mode {
    @media (max-width: 767px) {
        .nav-menu {
            background: var(--dark-bg-card);
            border-top: 1px solid rgba(255,255,255,0.1);
        }
    }
}

/* Container Queries (Future-proofing) */
@container (max-width: 600px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes for Responsive */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

@media (max-width: 767px) {
    .d-md-none { display: none; }
    .d-md-block { display: block; }
    .d-md-flex { display: flex; }
    .d-md-grid { display: grid; }
}

@media (max-width: 575px) {
    .d-sm-none { display: none; }
    .d-sm-block { display: block; }
    .d-sm-flex { display: flex; }
    .d-sm-grid { display: grid; }
}

/* Pricing Toggle Responsive */
@media (max-width: 991px) {
    .pricing-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .pricing-card.popular {
        transform: none;
        grid-column: span 2;
    }
}

@media (max-width: 767px) {
    .pricing-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .pricing-card.popular {
        grid-column: span 1;
    }
    
    .toggle-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto var(--spacing-md);
    }
    
    .toggle-btn {
        width: 100%;
        justify-content: center;
        margin-bottom: 4px;
    }
    
    .toggle-btn:last-child {
        margin-bottom: 0;
    }
    
    .price-badge {
        position: static;
        display: inline-block;
        margin-top: var(--spacing-xs);
    }
    
    .pricing-header {
        text-align: center;
        margin-bottom: var(--spacing-md);
    }
}

@media (max-width: 575px) {
    .toggle-description p {
        font-size: 0.8rem;
        padding: var(--spacing-xs);
    }
    
    .pricing-card {
        padding: var(--spacing-md);
    }
    
    .price .price-amount {
        font-size: 2rem;
    }
    
    .pricing-note {
        font-size: 0.85rem;
    }
}