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

/* iOS Safari viewport fix */
@supports (-webkit-touch-callout: none) {
  .hero-section {
    min-height: -webkit-fill-available;
  }
}

/* ========================================
   Mobile Hero Section Optimization
======================================== */

/* Mobile Landscape and Portrait */
@media (max-width: 768px) {
  .hero-section {
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height for mobile */
    padding: 1rem 0;
    background: 
      linear-gradient(135deg, rgba(0, 245, 255, 0.06) 0%, rgba(191, 0, 255, 0.06) 50%, rgba(255, 20, 147, 0.06) 100%),
      radial-gradient(ellipse at top left, rgba(0, 245, 255, 0.08) 0%, transparent 60%),
      radial-gradient(ellipse at bottom right, rgba(191, 0, 255, 0.08) 0%, transparent 60%);
    background-attachment: fixed;
    background-size: cover, 120% 120%, 120% 120%;
    background-position: center center, top left, bottom right;
    background-repeat: no-repeat;
    animation: hero-bg-shift 20s ease-in-out infinite;
  }
  
  .hero-section::before {
    background-image: 
      linear-gradient(rgba(0,245,255,0.1) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,245,255,0.1) 1px, transparent 1px);
    background-size: 25px 25px;
    opacity: 0.15;
    animation: grid-move 30s linear infinite;
  }

  .hero-section::after {
    background: 
      radial-gradient(circle at 25% 40%, rgba(0, 245, 255, 0.08) 0%, transparent 45%),
      radial-gradient(circle at 75% 25%, rgba(191, 0, 255, 0.08) 0%, transparent 45%),
      radial-gradient(circle at 50% 75%, rgba(255, 20, 147, 0.08) 0%, transparent 45%);
    background-size: 150% 150%, 150% 150%, 150% 150%;
    background-position: center top, center center, center bottom;
    animation: ambient-glow 25s ease-in-out infinite;
  }
  
  .hero-container {
    padding: 0 1rem;
    max-width: 100%;
  }
  
  /* Mobile Hero Badge */
  .hero-badge {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
    margin-bottom: 1.5rem;
    gap: 0.3rem;
  }
  
  .badge-icon {
    font-size: 1rem;
  }
  
  /* Mobile Typography */
  .hero-greeting {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
  }
  
  .hero-name {
    font-size: clamp(2rem, 10vw, 4rem) !important;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
  }
  
  .hero-title {
    font-size: clamp(1.2rem, 6vw, 2rem) !important;
    margin-bottom: 1rem;
    line-height: 1.4;
    text-align: center;
  }
  
  .hero-university {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    flex-direction: column;
    gap: 0.3rem;
    text-align: center;
  }
  
  .university-icon {
    font-size: 1.2rem;
  }
  
  .hero-description {
    font-size: 1rem;
    margin: 0 auto 2rem;
    line-height: 1.6;
    max-width: 95%;
    text-align: center;
  }
  
  /* Mobile highlight words */
  .highlight-word::after {
    height: 1px;
  }
  
  /* Ensure responsive text wrapping */
  .hero-title,
  .hero-description {
    word-wrap: break-word;
    overflow-wrap: break-word;
  }
  
  /* Mobile Stats - Stacked Layout */
  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: center;
  }
  
  .stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(0, 245, 255, 0.05);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(0, 245, 255, 0.2);
    min-width: 200px;
    justify-content: center;
  }
  
  .stat-number {
    font-size: 2rem;
    margin-bottom: 0;
    line-height: 1;
  }
  
  .stat-label {
    font-size: 0.8rem;
    margin: 0;
    text-align: left;
  }
  
  /* Mobile Buttons */
  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    width: 100%;
    padding: 0 1rem;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    justify-content: center;
    min-height: 50px;
    border-radius: 12px;
  }
  
  /* Enhanced mobile button effects */
  .btn:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
  }
  
  .btn-primary {
    box-shadow: 0 4px 20px rgba(0, 245, 255, 0.3);
  }
  
  .btn-secondary {
    border-width: 2px;
  }
  
  /* Mobile Background Elements */
  .neural-network {
    display: none; /* Hide complex animations on mobile */
  }
  
  .geometric-shapes .shape {
    width: 15px;
    height: 15px;
  }
  
  .hexagon {
    width: 20px;
    height: 20px;
  }
  
  .triangle {
    border-left-width: 10px;
    border-right-width: 10px;
    border-bottom-width: 15px;
  }
  
  .circle {
    width: 12px;
    height: 12px;
  }
  
  .square {
    width: 15px;
    height: 15px;
  }
  
  .energy-particles {
    opacity: 0.6;
  }
  
  .particle {
    width: 3px;
    height: 3px;
  }
  
  /* Mobile Scroll Indicator */
  .scroll-indicator {
    bottom: 1.5rem;
  }
  
  .scroll-text {
    font-size: 0.8rem;
    margin-bottom: 0.8rem;
  }
  
  .scroll-animation {
    height: 40px;
  }
  
  .scroll-dot {
    width: 6px;
    height: 6px;
  }
}

/* Mobile Portrait Only */
@media (max-width: 480px) {
  .hero-section {
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height */
    padding: 1rem 0;
    margin-top: -60px;
    padding-top: 80px;
    background: 
      linear-gradient(135deg, rgba(0, 245, 255, 0.05) 0%, rgba(191, 0, 255, 0.05) 50%, rgba(255, 20, 147, 0.05) 100%),
      radial-gradient(ellipse at center top, rgba(0, 245, 255, 0.06) 0%, transparent 50%),
      radial-gradient(ellipse at center bottom, rgba(191, 0, 255, 0.06) 0%, transparent 50%);
    background-size: cover, 100% 100%, 100% 100%;
    background-position: center center, center top, center bottom;
    background-attachment: scroll; /* Better performance on small screens */
    background-repeat: no-repeat;
  }

  .hero-section::before {
    background-image: 
      linear-gradient(rgba(0,245,255,0.08) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,245,255,0.08) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.12;
    animation: grid-move 35s linear infinite;
  }

  .hero-section::after {
    background: 
      radial-gradient(circle at 30% 30%, rgba(0, 245, 255, 0.06) 0%, transparent 40%),
      radial-gradient(circle at 70% 70%, rgba(191, 0, 255, 0.06) 0%, transparent 40%);
    background-size: 120% 120%, 120% 120%;
    background-position: center center, center center;
    animation: ambient-glow 30s ease-in-out infinite;
  }

  /* Optimize background animations for smaller screens */
  .neural-network,
  .geometric-shapes,
  .energy-particles {
    opacity: 0.4;
    transform: scale(0.8);
  }

  /* Reduce motion for performance */
  .neural-node {
    animation-duration: 8s;
  }

  .particle {
    animation-duration: 12s;
  }
  
  /* Mobile Portrait About Section */
  .profile-circle {
    width: 180px;
    height: 180px;
  }
  
  .profile-inner {
    width: 160px;
    height: 160px;
  }
  
  .electrical-frame {
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
  }
  
  .frame-corner {
    width: 20px;
    height: 20px;
  }
  
  .about-heading {
    font-size: clamp(1.2rem, 7vw, 2rem);
  }
  
  .paragraph-block {
    padding: 1rem;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
  
  .paragraph-icon {
    margin: 0 auto;
  }
  
  .stat-card {
    padding: 1rem;
  }
  
  .stat-card .stat-number {
    font-size: 1.5rem;
  }
  
  .voltage-indicator {
    width: 100px;
    padding: 0.8rem;
  }
  
  .voltage-value {
    font-size: 1.2rem;
  }
  
  /* Hide some complex animations on small screens */
  .electrical-sparks,
  .voltage-waves {
    display: none;
  }
  
  .energy-orbs {
    opacity: 0.5;
  }
  
  /* Mobile Section Organization */
  .biography-section,
  .statistics-section,
  .expertise-section {
    padding: 1rem;
    margin-bottom: 1rem;
  }
  
  .section-divider {
    margin-bottom: 1rem;
  }
  
  .divider-icon {
    font-size: 1.2rem;
    padding: 0.4rem;
  }
  
  .divider-text {
    font-size: 0.9rem;
    letter-spacing: 1px;
  }
  
  .about-text-section {
    gap: 1.5rem;
  }

  .hero-name {
    font-size: clamp(1.8rem, 12vw, 3rem) !important;
    margin-bottom: 1rem;
  }
  
  .hero-title {
    font-size: clamp(1rem, 7vw, 1.5rem) !important;
  }
  
  .hero-description {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
  }
  
  /* Stack stats vertically on very small screens */
  .hero-stats {
    gap: 1rem;
  }
  
  .stat-item {
    min-width: 180px;
    padding: 0.8rem 1rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .stat-label {
    font-size: 0.75rem;
  }
  
  /* Simplify buttons for small screens */
  .btn {
    padding: 0.8rem 1.2rem;
    font-size: 0.9rem;
    max-width: 250px;
  }
  
  /* Reduce background animation complexity */
  .geometric-shapes {
    opacity: 0.3;
  }
  
  .energy-particles {
    opacity: 0.4;
  }
  
  /* Hide some decorative elements on very small screens */
  .shape-3, .shape-4 {
    display: none;
  }
  
  .particle-4, .particle-5, .particle-6 {
    display: none;
  }
  
  /* Mobile loading optimization */
  .loading-screen {
    background-size: 30px 30px;
  }
  
  .loading-logo {
    font-size: 1.5rem;
  }
  
  /* Improve mobile performance */
  .hero-section::after {
    display: none;
  }
  
  /* Mobile safe areas for newer phones */
  .hero-container {
    padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 1rem) env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 1rem);
  }
  
  /* Mobile hero spacing */
  .hero-content > * {
    margin-left: auto;
    margin-right: auto;
  }
}

/* Large Tablets */
@media (max-width: 1024px) {
  .container {
    padding: 0 1.5rem;
  }

  .section-title {
    font-size: clamp(2rem, 4vw, 3rem);
  }

  .hero-name {
    font-size: clamp(2.5rem, 6vw, 4rem);
  }

  .hero-title {
    font-size: clamp(1.2rem, 3vw, 2rem);
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  /* Mobile About Section - Electrical Theme */
  .about-content {
    grid-template-columns: 1fr !important;
    gap: 2rem;
  }
  
  .electrical-background {
    opacity: 0.3;
  }
  
  .circuit-line {
    width: 150px !important;
    height: 100px !important;
  }
  
  .circuit-node {
    width: 8px;
    height: 8px;
  }
  
  .spark {
    width: 30px;
    height: 2px;
  }
  
  .voltage-wave {
    width: 100px;
    height: 50px;
  }
  
  .profile-circle {
    width: 200px;
    height: 200px;
    margin: 0 auto;
  }
  
  .profile-inner {
    width: 180px;
    height: 180px;
  }
  
  .electrical-frame {
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
  }
  
  .frame-corner {
    width: 25px;
    height: 25px;
  }
  
  .voltage-indicator {
    width: 120px;
    margin: 0 auto;
  }
  
  .about-text-section {
    text-align: left;
  }
  
  /* Mobile Organization */
  .biography-section,
  .statistics-section,
  .expertise-section {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  .section-divider {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
  }
  
  .divider-text {
    font-size: 1rem;
    letter-spacing: 1px;
  }
  
  .divider-line {
    width: 100%;
    margin-top: 0.5rem;
  }
  
  .about-text-section {
    gap: 2rem;
  }
  
  .engineer-badge {
    margin: 0 auto;
  }
  
  .about-heading {
    text-align: center;
    font-size: clamp(1.5rem, 6vw, 2.5rem);
  }
  
  .engineering-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .spec-grid {
    grid-template-columns: 1fr;
  }

  .profile-circle {
    width: 280px;
    height: 280px;
    margin: 0 auto;
  }

  .profile-initials {
    font-size: 3rem;
  }

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

  .projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }

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

/* Tablets */
@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
    --element-spacing: 1.5rem;
  }

  .container {
    padding: 0 1rem;
  }

  /* Navigation */
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    transition: right 0.3s ease;
    z-index: 999;
    border-left: 1px solid rgba(0, 245, 255, 0.2);
  }

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

  .nav-item {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.3s ease;
  }

  .nav-menu.active .nav-item {
    opacity: 1;
    transform: translateX(0);
  }

  .nav-menu.active .nav-item:nth-child(1) { transition-delay: 0.1s; }
  .nav-menu.active .nav-item:nth-child(2) { transition-delay: 0.2s; }
  .nav-menu.active .nav-item:nth-child(3) { transition-delay: 0.3s; }
  .nav-menu.active .nav-item:nth-child(4) { transition-delay: 0.4s; }
  .nav-menu.active .nav-item:nth-child(5) { transition-delay: 0.5s; }
  .nav-menu.active .nav-item:nth-child(6) { transition-delay: 0.6s; }

  .nav-link {
    font-size: 1.3rem;
    padding: 1rem 2rem;
    border-radius: 8px;
    transition: all var(--transition-normal);
  }

  .nav-link:hover {
    background: rgba(0, 245, 255, 0.1);
  }

  .hamburger {
    display: flex;
    z-index: 1001;
  }

  .hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
    border-radius: 3px;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
    background: var(--accent);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
    background: var(--accent);
  }

  .nav-actions {
    gap: 0.75rem;
  }

  .navbar-brand {
    gap: 0.5rem;
  }

  .brand-image {
    width: 35px;
    height: 35px;
  }

  .logo-text {
    font-size: 1.5rem;
  }

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

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  /* Timeline */
  .timeline-line {
    left: 2rem;
  }

  .timeline-item {
    justify-content: flex-start;
    padding-left: 4rem;
  }

  .timeline-item:nth-child(even) {
    justify-content: flex-start;
  }

  .timeline-item:nth-child(even) .timeline-content {
    text-align: left;
  }

  .timeline-dot {
    left: 2rem;
  }

  .timeline-content {
    width: 100%;
  }

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

  /* Projects */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* Forms */
  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form-container {
    padding: 1.5rem;
  }

  /* Footer */
  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }

  .footer-social {
    gap: 2rem;
  }
}

/* Mobile Phones */
@media (max-width: 480px) {
  :root {
    --section-padding: 60px 0;
    --element-spacing: 1rem;
  }

  .container {
    padding: 0 0.75rem;
  }

  /* Typography */
  .section-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    margin-bottom: 2rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  /* Navigation */
  .nav-container {
    padding: 0 1rem;
  }

  .logo-text {
    font-size: 1.5rem;
  }

  .nav-menu {
    width: 100%;
    right: -100%;
  }

  /* Hero */
  .hero-greeting {
    font-size: 1rem;
  }

  .hero-name {
    font-size: clamp(2rem, 8vw, 3.5rem);
    line-height: 1.1;
  }

  .hero-title {
    font-size: clamp(1rem, 4vw, 1.5rem);
  }

  .hero-university {
    font-size: 1rem;
  }

  .hero-description {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .hero-buttons {
    gap: 1rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }

  /* About */
  .profile-circle {
    width: 220px;
    height: 220px;
  }

  .profile-initials {
    font-size: 2.5rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-item {
    padding: 1rem;
  }

  .stat-item h4 {
    font-size: 1.5rem;
  }

  /* Skills */
  .skill-category {
    padding: 1.5rem;
  }

  .category-header h3 {
    font-size: 1.2rem;
  }

  .category-icon {
    font-size: 2rem;
  }

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

  .skills-tags {
    gap: 0.5rem;
  }

  .skill-tag {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }

  /* Projects */
  .project-card {
    padding: 1.5rem;
  }

  .project-card h3 {
    font-size: 1.2rem;
  }

  .project-tech {
    gap: 0.3rem;
  }

  .project-tech span {
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
  }

  /* Contact */
  .contact-item {
    padding: 1rem;
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .contact-icon {
    width: 40px;
    height: 40px;
  }

  .contact-icon svg {
    width: 20px;
    height: 20px;
  }

  .social-icons {
    justify-content: center;
    flex-wrap: wrap;
  }

  .social-icon {
    width: 45px;
    height: 45px;
    font-size: 1.3rem;
  }

  .contact-form h3 {
    font-size: 1.3rem;
  }

  /* Footer */
  .footer-header h3 {
    font-size: 1.5rem;
  }

  .footer-links {
    gap: 0.5rem;
  }

  .footer-social {
    gap: 1.5rem;
  }

  .footer-social-link {
    font-size: 1.3rem;
  }

  /* Floating elements - reduce on mobile */
  .floating-elements {
    display: none;
  }

  /* Reduce animations on mobile for performance */
  .reduce-motion {
    animation: none !important;
    transition: none !important;
  }
}

/* Very Small Mobile Phones */
@media (max-width: 360px) {
  .container {
    padding: 0 0.5rem;
  }

  .hero-name {
    font-size: clamp(1.8rem, 8vw, 3rem);
  }

  .profile-circle {
    width: 180px;
    height: 180px;
  }

  .profile-initials {
    font-size: 2rem;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }

  .skill-category {
    padding: 1rem;
  }

  .project-card {
    padding: 1rem;
  }

  .contact-form-container {
    padding: 1rem;
  }
}

/* ========================================
   Landscape Mobile Orientation
======================================== */
@media (max-width: 768px) and (orientation: landscape) {
  .hero-section {
    min-height: 100vh;
    padding: 2rem 0;
  }

  .hero-name {
    font-size: clamp(2rem, 6vw, 3rem);
  }

  .hero-description {
    margin-bottom: 2rem;
  }

  .hero-buttons {
    gap: 1rem;
  }

  .section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
  }
}

/* ========================================
   Print Styles
======================================== */
@media print {
  * {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  .navbar,
  .floating-elements,
  .loading-screen,
  .btn,
  #particles-canvas,
  .scroll-indicator {
    display: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.4;
  }

  h1, h2, h3 {
    page-break-after: avoid;
  }

  .timeline-item,
  .project-card,
  .skill-category {
    page-break-inside: avoid;
  }

  a {
    text-decoration: underline;
  }

  a[href]:after {
    content: " (" attr(href) ")";
  }
}

/* ========================================
   Accessibility & Motion Preferences
======================================== */
@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;
  }

  .animate-float,
  .animate-pulse,
  .animate-rotate,
  .animate-bounce {
    animation: none;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --accent: #00ffff;
    --border: #ffffff;
  }

  .btn-primary {
    background: #ffffff;
    color: #000000;
    border: 2px solid #ffffff;
  }

  .btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
  }
}

/* ========================================
   Mobile Landscape Optimization
======================================== */
@media (max-width: 768px) and (orientation: landscape) {
  .hero-section {
    min-height: 100vh;
    padding: 0.5rem 0;
  }

  .hero-container {
    padding: 1rem 2rem;
  }

  .hero-name {
    font-size: clamp(1.5rem, 8vw, 3rem) !important;
    margin-bottom: 1rem;
  }

  .hero-description {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
  }
}

/* ========================================
   Ultra Small Screens (Very Small Phones)
======================================== */
@media (max-width: 320px) {
  .hero-section {
    background: 
      linear-gradient(135deg, rgba(0, 245, 255, 0.04) 0%, rgba(191, 0, 255, 0.04) 100%),
      radial-gradient(ellipse at center, rgba(0, 245, 255, 0.05) 0%, transparent 60%);
    background-size: cover, 100% 100%;
    background-position: center center, center center;
  }

  .hero-section::before {
    background-size: 15px 15px;
    opacity: 0.1;
  }

  .hero-section::after {
    opacity: 0.8;
    background: radial-gradient(circle at center, rgba(0, 245, 255, 0.04) 0%, transparent 50%);
  }

  .hero-container {
    padding: 0 0.75rem;
  }
}

/* Dark Mode Preference */
@media (prefers-color-scheme: light) {
  body:not(.dark-theme) {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border: #e2e8f0;
  }
}

/* ========================================
   Container Queries (Future-proofing)
======================================== */
@container (max-width: 768px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

@container (max-width: 480px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Utility Classes for Responsive Design
======================================== */
.hidden-mobile {
  display: block;
}

.visible-mobile {
  display: none;
}

@media (max-width: 768px) {
  .hidden-mobile {
    display: none;
  }
  
  .visible-mobile {
    display: block;
  }
}

.text-center-mobile {
  text-align: left;
}

@media (max-width: 768px) {
  .text-center-mobile {
    text-align: center;
  }
}

/* Responsive text sizes */
.text-responsive-lg {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

.text-responsive-md {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
}

.text-responsive-sm {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
}