/* ===============================================
   Responsive Design - Mobile & Tablet Styles
   =============================================== */

/* Large Desktop */
@media (max-width: 1400px) {
  :root {
    --container-max-width: 1100px;
  }
}

/* Desktop */
@media (max-width: 1200px) {
  :root {
    --container-max-width: 960px;
    --spacing-xl: 3rem;
  }
  
  .hero-content {
    gap: var(--spacing-lg);
  }
  
  .hero-3d-container, .hero-fallback {
    width: 350px;
    height: 350px;
  }
  
  .featured-grid {
    height: 500px;
  }
}

/* Tablet Landscape */
@media (max-width: 1024px) {
  :root {
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
  }
  
  .nav-container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }
  
  .hero-text {
    order: 1;
  }
  
  .hero-visual {
    order: 0;
  }
  
  .hero-3d-container, .hero-fallback {
    width: 300px;
    height: 300px;
  }
  
  .featured-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto;
    height: auto;
  }
  
  .featured-item.large {
    grid-column: 1 / 3;
    grid-row: 1;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .about-text .section-header {
    text-align: center;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .contact-info .section-header {
    text-align: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }
  
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Tablet Portrait */
@media (max-width: 768px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
  }
  
  /* Navigation */
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-xl);
    gap: var(--spacing-lg);
    transition: left var(--transition-medium);
    z-index: 999;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-link {
    font-size: 1.125rem;
  }
  
  .hamburger {
    display: flex;
  }
  
  /* Hero Section */
  .hero {
    padding: 120px 0 var(--spacing-xl);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
  }
  
  .btn {
    width: 100%;
    max-width: 250px;
    justify-content: center;
  }
  
  .hero-3d-container, .hero-fallback {
    width: 250px;
    height: 250px;
  }
  
  /* Featured Work */
  .featured-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .featured-item.large {
    grid-column: 1;
    grid-row: auto;
  }
  
  .featured-item {
    height: 250px;
  }
  
  /* Portfolio */
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .portfolio-filter {
    gap: var(--spacing-xs);
  }
  
  .filter-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
  }
  
  /* Skills Grid */
  .skills-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  /* Stats Grid */
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  /* Contact */
  .contact-details {
    margin-bottom: var(--spacing-md);
  }
  
  .social-links {
    justify-content: center;
    margin-top: var(--spacing-md);
  }
  
  /* Footer */
  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .footer-column {
    text-align: center;
  }
}

/* Mobile Large */
@media (max-width: 480px) {
  :root {
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.5rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .nav-container {
    padding: 0 var(--spacing-sm);
    height: 70px;
  }
  
  .nav-logo a {
    font-size: 1.25rem;
  }
  
  .nav-menu {
    top: 70px;
    height: calc(100vh - 70px);
    padding-top: var(--spacing-lg);
  }
  
  /* Typography */
  .section-title {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
  
  .hero-text h1 {
    font-size: clamp(2rem, 10vw, 3rem);
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  /* Hero */
  .hero {
    padding: 100px 0 var(--spacing-lg);
    min-height: 90vh;
  }
  
  .hero-3d-container, .hero-fallback {
    width: 200px;
    height: 200px;
  }
  
  .hero-buttons {
    gap: var(--spacing-sm);
  }
  
  /* Featured Work */
  .featured-item {
    height: 200px;
  }
  
  .featured-content h3 {
    font-size: 1.25rem;
  }
  
  .featured-overlay {
    padding: var(--spacing-sm);
  }
  
  /* Portfolio */
  .portfolio-filter {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
  }
  
  .filter-btn {
    width: 100%;
    max-width: 200px;
    text-align: center;
  }
  
  .portfolio-image {
    height: 200px;
  }
  
  .portfolio-content {
    padding: var(--spacing-sm);
  }
  
  /* Skills & Stats */
  .skill-icon {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }
  
  .skill-item,
  .stat-item {
    padding: var(--spacing-sm);
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  /* Services */
  .service-card {
    padding: var(--spacing-md);
  }
  
  .service-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .service-card h3 {
    font-size: 1.25rem;
  }
  
  /* Contact */
  .contact-form-container {
    padding: var(--spacing-md);
  }
  
  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .contact-icon {
    width: 40px;
    height: 40px;
  }
  
  .social-link {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  /* Form */
  .form-group input,
  .form-group textarea {
    padding: 14px 10px 6px;
  }
  
  .form-group label {
    top: 14px;
    left: 10px;
  }
  
  .form-group input:focus + label,
  .form-group input:not(:placeholder-shown) + label,
  .form-group textarea:focus + label,
  .form-group textarea:not(:placeholder-shown) + label {
    top: 2px;
  }
  
  /* Footer */
  .footer {
    padding: var(--spacing-lg) 0 var(--spacing-sm);
  }
  
  .footer-content {
    gap: var(--spacing-md);
  }
  
  .footer-links {
    gap: var(--spacing-sm);
  }
}

/* Mobile Small */
@media (max-width: 360px) {
  :root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.25rem;
  }
  
  .nav-container {
    height: 60px;
  }
  
  .nav-menu {
    top: 60px;
    height: calc(100vh - 60px);
  }
  
  .hero {
    padding: 80px 0 var(--spacing-lg);
  }
  
  .hero-3d-container, .hero-fallback {
    width: 180px;
    height: 180px;
  }
  
  .section-header {
    margin-bottom: var(--spacing-lg);
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 0.875rem;
  }
  
  .featured-item,
  .portfolio-image {
    height: 180px;
  }
  
  .service-card,
  .contact-form-container {
    padding: var(--spacing-sm);
  }
}

/* Landscape Orientation Adjustments */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: 100px 0 var(--spacing-md);
  }
  
  .hero-content {
    gap: var(--spacing-md);
  }
  
  .hero-3d-container, .hero-fallback {
    width: 200px;
    height: 200px;
  }
  
  .nav-menu {
    padding-top: var(--spacing-md);
    gap: var(--spacing-sm);
  }
  
  .nav-menu.active {
    overflow-y: auto;
  }
}

/* High Resolution Displays */
@media (min-width: 1400px) {
  :root {
    --container-max-width: 1300px;
  }
  
  .hero-3d-container, .hero-fallback {
    width: 450px;
    height: 450px;
  }
  
  .featured-grid {
    height: 700px;
  }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .floating-element,
  .hero-gradient,
  .scroll-arrow {
    animation: none;
  }
  
  .hero-3d-container, .hero-fallback {
    animation: none;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-light: #9ca3af;
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-dark: #030712;
    --border-color: #374151;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-large: 0 10px 25px rgba(0, 0, 0, 0.4);
  }
  
  .navbar {
    background: rgba(17, 24, 39, 0.95);
    border-bottom-color: var(--border-color);
  }
  
  .navbar.scrolled {
    background: rgba(17, 24, 39, 0.98);
  }
  
  .hero {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  }
  
  .btn-secondary {
    background: var(--bg-secondary);
  }
  
  .btn-secondary:hover {
    background: var(--bg-primary);
  }
  
  .service-card,
  .portfolio-item,
  .contact-form-container {
    background: var(--bg-secondary);
  }
  
  .form-group input,
  .form-group textarea {
    background: var(--bg-primary);
    border-color: var(--border-color);
    color: var(--text-primary);
  }
  
  .filter-btn {
    background: var(--bg-secondary);
    border-color: var(--border-color);
  }
}

/* Modal Responsive Styles */
@media (max-width: 768px) {
  .modal-content {
    width: 95vw;
    height: 85vh;
  }
  
  .modal-3d-viewer {
    min-height: 300px;
  }
  
  .detail-grid {
    grid-template-columns: 1fr;
  }
  
  .viewer-controls {
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    top: auto;
  }
}

@media (max-width: 480px) {
  .modal-content {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
  }
  
  .control-btn {
    width: 35px;
    height: 35px;
  }
  
  .modal-info {
    padding: var(--spacing-sm);
  }
}

/* Print Styles */
@media print {
  * {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
  }
  
  .navbar,
  .hamburger,
  .scroll-indicator,
  .btn,
  .contact-form,
  .social-links {
    display: none !important;
  }
  
  .hero {
    min-height: auto;
    page-break-inside: avoid;
  }
  
  .section {
    page-break-inside: avoid;
    margin-bottom: 2rem;
  }
  
  .featured-grid,
  .portfolio-grid,
  .services-grid {
    display: block;
  }
  
  .featured-item,
  .portfolio-item,
  .service-card {
    display: inline-block;
    width: 100%;
    margin-bottom: 1rem;
    page-break-inside: avoid;
  }
}