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

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

/* Desktop (1200px to 1399px) */
@media (max-width: 1399px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Large Tablet (992px to 1199px) */
@media (max-width: 1199px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 60px;
        margin-right: 0;
        text-align: left;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -45px;
    }
}

/* Tablet (768px to 991px) */
@media (max-width: 991px) {
    /* Navigation */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--background-primary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-medium);
        padding: var(--spacing-lg) 0;
        height: calc(100vh - 70px);
        overflow-y: auto;
    }

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

    .nav-toggle {
        display: flex;
    }

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

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Hero Section */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .profile-image {
        width: 250px;
        height: 250px;
    }

    /* About Section */
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

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

    /* Projects Section */
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

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

    /* Contact Section */
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
    
    /* Timeline adjustments */
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 50px;
        margin-right: 0;
        text-align: left;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -35px;
    }
}

/* Mobile (576px to 767px) */
@media (max-width: 767px) {
    /* Typography */
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: var(--font-size-xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    /* Spacing */
    .container {
        padding: 0 var(--spacing-sm);
    }

    section {
        padding: var(--spacing-xl) 0;
    }

    /* Navigation */
    .nav-container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-logo a {
        font-size: var(--font-size-lg);
    }

    /* Hero Section */
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }

    .profile-image {
        width: 200px;
        height: 200px;
    }

    /* About Section */
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .stat {
        padding: var(--spacing-md);
    }

    /* Projects Section */
    .project-filters {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .filter-btn {
        width: 100%;
        max-width: 200px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .project-card {
        margin: 0 auto;
        max-width: 400px;
        padding: var(--spacing-lg);
    }

    /* Skills Section */
    .skills-grid {
        grid-template-columns: 1fr;
    }

    .skill-item {
        padding: var(--spacing-md);
    }

    /* Timeline */
    .timeline::before {
        left: 20px;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 50px;
        margin-right: 0;
        text-align: left;
    }

    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -35px;
    }

    /* Contact Section */
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .social-links {
        flex-wrap: wrap;
    }

    .social-link {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    /* Back to top button */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* Small Mobile (up to 575px) */
@media (max-width: 575px) {
    /* Typography */
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .nav-logo a {
        font-size: var(--font-size-base);
    }

    /* Hero adjustments */
    .hero-content {
        gap: var(--spacing-lg);
    }

    .profile-image {
        width: 150px;
        height: 150px;
    }

    .scroll-indicator {
        display: none;
    }

    /* About text */
    .about-text p {
        font-size: var(--font-size-base);
    }

    /* Project cards */
    .project-card {
        padding: var(--spacing-md);
        margin: 0;
    }

    .project-content {
        padding: var(--spacing-sm);
    }

    .project-title {
        font-size: var(--font-size-lg);
    }

    .project-description {
        font-size: var(--font-size-sm);
    }

    /* Skill items */
    .skill-item {
        padding: var(--spacing-sm);
    }

    .skill-item i {
        font-size: var(--font-size-2xl);
    }

    /* Contact items */
    .contact-item {
        padding: var(--spacing-sm);
    }

    .contact-item i {
        font-size: var(--font-size-lg);
    }

    /* Back to top */
    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
}

/* Extra Small Mobile (up to 375px) */
@media (max-width: 375px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .profile-image {
        width: 120px;
        height: 120px;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .project-card {
        padding: var(--spacing-sm);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

/* Landscape Mobile (height < 500px) */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    .hero-content {
        gap: var(--spacing-md);
    }

    .profile-image {
        width: 100px;
        height: 100px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-description {
        font-size: var(--font-size-sm);
    }
}

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

/* Print Styles */
@media print {
    .navbar,
    .nav-toggle,
    .theme-toggle,
    .back-to-top,
    .social-links,
    .scroll-indicator {
        display: none !important;
    }

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

    .project-card:hover,
    .skill-item:hover,
    .timeline-content:hover,
    .contact-item:hover,
    .social-link:hover,
    .btn:hover,
    .stat:hover,
    .about-banner:hover,
    .profile-image:hover,
    .project-image:hover {
        transform: none !important;
    }
    
    .project-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .loader-circle {
        animation: none !important;
    }

    .scroll-indicator {
        animation: none !important;
    }

    .highlight::after {
        animation: none !important;
    }
}

/* Dark Mode Preference */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #d4a574;
        --secondary-color: #c19a6b;
        --accent-color: #b8860b;
        --text-primary: #f1f5f9;
        --text-secondary: #94a3b8;
        --background-primary: #2d1b0e;
        --background-secondary: #1a1108;
        --background-tertiary: #4a3a2c;
        --border-color: #5d4a3a;
        --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.4);
        --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.5);
    }
}

/* Focus Management */
@media (prefers-reduced-motion: no-preference) {
    .nav-link:focus,
    .btn:focus,
    .filter-btn:focus,
    .theme-toggle:focus,
    .social-link:focus,
    .back-to-top:focus {
        outline: 2px solid var(--primary-color);
        outline-offset: 2px;
        transition: outline-offset 0.2s ease;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #8b4513;
        --text-primary: #2d1b0e;
        --background-primary: #f5f1eb;
        --border-color: #8b4513;
        --shadow-light: 0 2px 10px rgba(139, 69, 19, 0.5);
        --shadow-medium: 0 4px 20px rgba(139, 69, 19, 0.7);
        --shadow-heavy: 0 8px 30px rgba(139, 69, 19, 0.9);
    }

    [data-theme="dark"] {
        --primary-color: #d4a574;
        --text-primary: #f7f5e6;
        --background-primary: #2d1b0e;
        --border-color: #d4a574;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .nav-link,
    .btn,
    .filter-btn,
    .social-link,
    .back-to-top {
        min-height: 44px;
        min-width: 44px;
    }
    
    .project-card:hover,
    .skill-item:hover,
    .timeline-content:hover,
    .contact-item:hover,
    .stat:hover {
        transform: none;
    }
}

/* Large Touch Targets for Mobile */
@media (max-width: 767px) {
    .nav-link {
        padding: 1rem 0;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .btn {
        min-height: 48px;
        padding: 1rem 1.5rem;
    }
    
    .filter-btn {
        min-height: 44px;
        padding: 0.75rem 1.5rem;
    }
    
    .social-link {
        min-width: 50px;
        min-height: 50px;
    }
}

/* Safe Area Support for Notched Devices */
@supports (padding: max(0px)) {
    .navbar {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    }
    
    .container {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    }
    
    .back-to-top {
        bottom: max(30px, env(safe-area-inset-bottom));
        right: max(30px, env(safe-area-inset-right));
    }
}