/* Custom Orange & Gray Theme for Protein Design Website */

/* Design System Override Variables */
:root {
  /* New primary color palette */
  --color-primary-orange: #f36f21;
  --color-primary-orange-hover: #e55a15;
  --color-primary-orange-active: #d14d0f;
  --color-dark-gray: #72635c;
  --color-light-gray: #aca6a2;
  --color-white: #ffffff;
  --color-accent-blue: #4A90E2;
  --color-accent-green: #7ED321;

  /* RGB versions for opacity control */
  --color-primary-orange-rgb: 243, 111, 33;
  --color-dark-gray-rgb: 114, 99, 92;
  --color-light-gray-rgb: 172, 166, 162;

  /* Override semantic color tokens with orange theme */
  --color-background: var(--color-light-gray);
  --color-surface: var(--color-white);
  --color-text: var(--color-primary-orange);
  --color-text-secondary: var(--color-dark-gray);
  --color-primary: var(--color-primary-orange);
  --color-primary-hover: var(--color-primary-orange-hover);
  --color-primary-active: var(--color-primary-orange-active);
  --color-secondary: rgba(var(--color-light-gray-rgb), 0.3);
  --color-secondary-hover: rgba(var(--color-light-gray-rgb), 0.5);
  --color-secondary-active: rgba(var(--color-light-gray-rgb), 0.7);
  --color-border: rgba(var(--color-light-gray-rgb), 0.6);
  --color-btn-primary-text: var(--color-white);
  --color-card-border: rgba(var(--color-light-gray-rgb), 0.4);
  --color-card-border-inner: rgba(var(--color-light-gray-rgb), 0.3);
  --color-focus-ring: rgba(var(--color-primary-orange-rgb), 0.4);

  /* Background color tokens with orange theme */
  --color-bg-1: rgba(var(--color-primary-orange-rgb), 0.08);
  --color-bg-2: rgba(var(--color-primary-orange-rgb), 0.12);
  --color-bg-3: rgba(var(--color-primary-orange-rgb), 0.06);
  --color-bg-4: rgba(var(--color-light-gray-rgb), 0.15);
  --color-bg-5: rgba(var(--color-light-gray-rgb), 0.10);
  --color-bg-6: rgba(var(--color-primary-orange-rgb), 0.10);
  --color-bg-7: rgba(var(--color-primary-orange-rgb), 0.14);
  --color-bg-8: rgba(var(--color-light-gray-rgb), 0.08);
}

/* Enhanced base styles with orange theme */
html {
  font-size: 14px;
  font-family: "FKGroteskNeue", "Geist", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  color: var(--color-dark-gray);
  background: linear-gradient(135deg, var(--color-light-gray) 0%, rgba(var(--color-light-gray-rgb), 0.8) 100%);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background: #fff;
  color: var(--color-dark-gray);
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography with orange theme */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 550;
  line-height: 1.2;
  color: var(--color-primary-orange);
  letter-spacing: -0.01em;
}

h1 { font-size: 30px; }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

p {
  margin: 0 0 16px 0;
  color: var(--color-dark-gray);
}

a {
  color: var(--color-primary-orange);
  text-decoration: none;
  transition: color 150ms cubic-bezier(0.16, 1, 0.3, 1);
}

a:hover {
  color: var(--color-primary-orange-hover);
}

/* Navigation with enhanced visibility */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(var(--color-light-gray-rgb), 0.5);
  box-shadow: 0 2px 10px rgba(var(--color-primary-orange-rgb), 0.1);
  z-index: 1000;
  transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  max-width: 1280px;
  margin: 0 auto;
}

.nav-brand h3 {
  margin: 0;
  color: var(--color-primary-orange);
  font-weight: 600;
  font-size: 20px;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-link {
  color: var(--color-dark-gray);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 6px;
  transition: all 150ms cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary-orange);
  background: rgba(var(--color-primary-orange-rgb), 0.08);
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: 16px;
  padding-left: 16px;
  max-width: 1280px;
}

/* Hero Section with orange theme */
.hero {
  padding: 120px 0 80px 0;
  background: linear-gradient(135deg, 
    rgba(var(--color-primary-orange-rgb), 0.08) 0%,
    rgba(var(--color-light-gray-rgb), 0.15) 50%,
    rgba(var(--color-primary-orange-rgb), 0.06) 100%);
  overflow: hidden;
  min-height: 80vh;
}

.hero-content {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: 32px;
  align-items: center;
  min-height: 600px;
}

.hero-text h1 {
  color: var(--color-primary-orange);
  font-size: 30px;
  margin-bottom: 16px;
  line-height: 1.1;
}

.hero-tagline {
  font-size: 18px;
  color: var(--color-primary-orange);
  font-weight: 550;
  margin-bottom: 16px;
}

.hero-description {
  font-size: 16px;
  color: var(--color-dark-gray);
  line-height: 1.6;
  margin-bottom: 32px;
}

/* Metrics with orange theme */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.metric-card {
  background: var(--color-white);
  padding: 16px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  box-shadow: 0 2px 8px rgba(var(--color-primary-orange-rgb), 0.1);
  text-align: center;
  transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--color-primary-orange-rgb), 0.15);
}

.metric-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-primary-orange);
  margin-bottom: 4px;
}

.metric-label {
  font-size: 12px;
  color: var(--color-dark-gray);
  font-weight: 500;
}

/* Buttons with orange theme */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(var(--color-primary-orange-rgb), 0.3);
}

.btn--primary {
  background: var(--color-primary-orange);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-primary-orange-hover);
}

.btn--primary:active {
  background: var(--color-primary-orange-active);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-primary-orange);
  color: var(--color-primary-orange);
}

.btn--outline:hover {
  background: var(--color-primary-orange);
  color: var(--color-white);
}

.btn--lg {
  padding: 10px 20px;
  font-size: 16px;
  border-radius: 10px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

/* Enhanced DNA Container and Animation Styles */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
  position: relative;
}

.dna-container {
  position: relative;
  width: 400px;
  height: 400px;
  display: flex;
  justify-content: center;
  align-items: center;
  filter: drop-shadow(0 10px 30px rgba(var(--color-primary-orange-rgb), 0.2));
}

.dna-strand {
  width: 100%;
  height: auto;
  max-height: 400px;
  border-radius: 12px;
  filter: hue-rotate(15deg) saturate(1.2) brightness(1.1);
  transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  z-index: 2;
}

.rotating-dna {
  animation: rotateDNA 20s linear infinite;
}

.dna-strand:hover {
  transform: scale(1.05);
  filter: hue-rotate(15deg) saturate(1.4) brightness(1.2) drop-shadow(0 15px 40px rgba(var(--color-primary-orange-rgb), 0.5));
  animation-play-state: paused;
}

.dna-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 420px;
  height: 420px;
  background: radial-gradient(
    circle,
    rgba(var(--color-primary-orange-rgb), 0.25) 0%,
    rgba(var(--color-primary-orange-rgb), 0.10) 50%,
    transparent 70%
  );
  border-radius: 50%;
  animation: glowPulse 4s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
}

/* DNA Animation Keyframes */
@keyframes rotateDNA {
  from {
    transform: rotateY(0deg);
  }
  to {
    transform: rotateY(360deg);
  }
}

@keyframes glowPulse {
  0%, 100% {
    opacity: 0.25;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.6;
    transform: translate(-50%, -50%) scale(1.05);
  }
}

/* Enhanced hover effects for DNA */
.dna-container:hover .dna-glow {
  animation-play-state: paused;
  opacity: 0.8;
  transform: translate(-50%, -50%) scale(1.1);
}

/* Section Styles with orange theme */
section {
  padding: 80px 0;
}

section:nth-child(even) {
  background: rgba(var(--color-primary-orange-rgb), 0.03);
}

.section-description {
  font-size: 16px;
  color: var(--color-dark-gray);
  text-align: center;
  margin-bottom: 32px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Feature cards with orange theme */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.feature-card {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  box-shadow: 0 2px 8px rgba(var(--color-primary-orange-rgb), 0.08);
  text-align: center;
  transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(var(--color-primary-orange-rgb), 0.15);
  border-color: rgba(var(--color-primary-orange-rgb), 0.3);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
  filter: hue-rotate(15deg) saturate(1.3);
}

.feature-card h4 {
  margin-bottom: 12px;
  color: var(--color-primary-orange);
}

.feature-card p {
  color: var(--color-dark-gray);
  margin: 0;
}

/* Technical Details with orange theme */
.technical-details {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  overflow: hidden;
}

.detail-tabs {
  display: flex;
  background: rgba(var(--color-primary-orange-rgb), 0.08);
}

.tab-btn {
  flex: 1;
  padding: 16px 24px;
  border: none;
  background: transparent;
  color: var(--color-dark-gray);
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-btn:hover {
  background: rgba(var(--color-primary-orange-rgb), 0.1);
  color: var(--color-primary-orange);
}

.tab-btn.active {
  background: var(--color-white);
  color: var(--color-primary-orange);
  border-bottom: 2px solid var(--color-primary-orange);
  font-weight: 550;
}

.tab-content {
  padding: 24px;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.tab-panel h4 {
  margin-bottom: 16px;
  color: var(--color-primary-orange);
}

.tab-panel ul {
  padding-left: 20px;
}

.tab-panel li {
  margin-bottom: 8px;
  line-height: 1.6;
  color: var(--color-dark-gray);
}

/* Results section with orange theme */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.result-card {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  box-shadow: 0 2px 8px rgba(var(--color-primary-orange-rgb), 0.08);
}

.result-card h4 {
  margin-bottom: 16px;
  text-align: center;
  color: var(--color-primary-orange);
}

.result-card p {
  color: var(--color-dark-gray);
}

.chart-container {
  margin-bottom: 12px;
}

/* Detailed Analysis */
.detailed-analysis {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  margin-bottom: 32px;
  text-align: center;
}

.detailed-analysis h4 {
  margin-bottom: 16px;
  color: var(--color-primary-orange);
}

.detailed-analysis p {
  color: var(--color-dark-gray);
}

/* Performance Table with orange theme */
.benchmark-table {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
}

.benchmark-table h4 {
  margin-bottom: 16px;
  text-align: center;
  color: var(--color-primary-orange);
}

.performance-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.performance-table th,
.performance-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(var(--color-light-gray-rgb), 0.3);
}

.performance-table th {
  background: rgba(var(--color-primary-orange-rgb), 0.1);
  font-weight: 550;
  color: var(--color-primary-orange);
}

.performance-table td {
  color: var(--color-dark-gray);
}

.highlight-row {
  background: rgba(var(--color-primary-orange-rgb), 0.08);
}

.highlight-row td {
  color: var(--color-primary-orange);
  font-weight: 550;
}

/* Implementation Section with orange theme */
.code-section {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  overflow: hidden;
  margin-bottom: 32px;
}

.code-tabs {
  display: flex;
  background: rgba(var(--color-primary-orange-rgb), 0.08);
}

.code-tab-btn {
  flex: 1;
  padding: 16px 24px;
  border: none;
  background: transparent;
  color: var(--color-dark-gray);
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms cubic-bezier(0.16, 1, 0.3, 1);
}

.code-tab-btn:hover {
  background: rgba(var(--color-primary-orange-rgb), 0.1);
  color: var(--color-primary-orange);
}

.code-tab-btn.active {
  background: var(--color-white);
  color: var(--color-primary-orange);
  border-bottom: 2px solid var(--color-primary-orange);
  font-weight: 550;
}

.code-content {
  padding: 0;
}

.code-panel {
  display: none;
  padding: 24px;
}

.code-panel.active {
  display: block;
}

.code-panel h4 {
  margin-bottom: 16px;
  color: var(--color-primary-orange);
}

.code-panel pre {
  background: rgba(var(--color-light-gray-rgb), 0.1);
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.3);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  margin: 0;
}

.code-panel code {
  font-family: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  background: transparent;
  padding: 0;
  color: var(--color-dark-gray);
}

/* Implementation Details */
.implementation-details {
  margin-bottom: 32px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.detail-item {
  background: var(--color-white);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  box-shadow: 0 2px 8px rgba(var(--color-primary-orange-rgb), 0.05);
}

.detail-item h4 {
  margin-bottom: 12px;
  color: var(--color-primary-orange);
  display: flex;
  align-items: center;
  gap: 8px;
}

.detail-item ul {
  margin: 0;
  padding-left: 20px;
}

.detail-item li {
  margin-bottom: 6px;
  color: var(--color-dark-gray);
}

.github-section {
  text-align: center;
}

/* Applications Section with orange theme */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.application-card {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  box-shadow: 0 2px 8px rgba(var(--color-primary-orange-rgb), 0.08);
  text-align: center;
  transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

.application-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(var(--color-primary-orange-rgb), 0.15);
  border-color: rgba(var(--color-primary-orange-rgb), 0.3);
}

.app-icon {
  font-size: 48px;
  margin-bottom: 16px;
  filter: hue-rotate(15deg) saturate(1.2);
}

.application-card h4 {
  margin-bottom: 12px;
  color: var(--color-primary-orange);
}

.application-card p {
  color: var(--color-dark-gray);
  margin-bottom: 16px;
}

.impact {
  background: rgba(var(--color-primary-orange-rgb), 0.1);
  padding: 12px;
  border-radius: 8px;
  font-size: 12px;
  border-left: 3px solid var(--color-primary-orange);
}

.impact strong {
  color: var(--color-primary-orange);
}

/* Future Directions with orange theme */
.future-directions {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
}

.future-directions h3 {
  text-align: center;
  margin-bottom: 24px;
  color: var(--color-primary-orange);
}

.directions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.direction-item {
  padding: 16px;
  background: rgba(var(--color-primary-orange-rgb), 0.06);
  border-radius: 8px;
  border-left: 3px solid var(--color-primary-orange);
}

.direction-item h5 {
  margin-bottom: 8px;
  color: var(--color-primary-orange);
}

.direction-item p {
  margin: 0;
  color: var(--color-dark-gray);
  font-size: 12px;
}

/* Team Section with orange theme */
.team-card {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  box-shadow: 0 2px 8px rgba(var(--color-primary-orange-rgb), 0.08);
  text-align: center;
  margin-bottom: 32px;
}

.team-card h4 {
  margin-bottom: 8px;
  color: var(--color-primary-orange);
}

.affiliation {
  color: var(--color-dark-gray);
  font-style: italic;
  margin-bottom: 16px;
}

.expertise h5 {
  margin-bottom: 12px;
  color: var(--color-primary-orange);
}

.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.tag {
  background: var(--color-primary-orange);
  color: var(--color-white);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

/* Publications with orange theme */
.publications {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  margin-bottom: 32px;
}

.publications h4 {
  margin-bottom: 16px;
  text-align: center;
  color: var(--color-primary-orange);
}

.publication-item {
  padding: 16px;
  margin-bottom: 12px;
  background: rgba(var(--color-primary-orange-rgb), 0.05);
  border-radius: 8px;
  border-left: 4px solid var(--color-primary-orange);
}

.publication-item:last-child {
  margin-bottom: 0;
}

.publication-item h5 {
  margin-bottom: 4px;
  color: var(--color-primary-orange);
}

.publication-item p {
  margin: 0;
  color: var(--color-dark-gray);
  font-style: italic;
}

/* Contact Section with orange theme */
.contact-section {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid rgba(var(--color-light-gray-rgb), 0.4);
  text-align: center;
}

.contact-section h4 {
  margin-bottom: 12px;
  color: var(--color-primary-orange);
}

.contact-section p {
  margin-bottom: 16px;
  color: var(--color-dark-gray);
}

/* Footer with orange theme */
.footer {
  background: var(--color-white);
  border-top: 1px solid rgba(var(--color-light-gray-rgb), 0.5);
  padding: 32px 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left h4 {
  margin-bottom: 8px;
  color: var(--color-primary-orange);
}

.footer-left p, .footer-right p {
  margin: 0;
  color: var(--color-dark-gray);
  font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }

  .dna-container {
    width: 300px;
    height: 300px;
  }

  .dna-strand {
    max-height: 300px;
  }

  .dna-glow {
    width: 320px;
    height: 320px;
  }

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

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

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

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

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

  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
  }

  .detail-tabs,
  .code-tabs {
    flex-direction: column;
  }

  .tab-btn,
  .code-tab-btn {
    text-align: left;
  }
}

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

  .hero {
    padding: 100px 0 60px 0;
  }

  section {
    padding: 60px 0;
  }

  .hero-text h1 {
    font-size: 24px;
  }

  .dna-container {
    width: 250px;
    height: 250px;
  }

  .dna-strand {
    max-height: 250px;
  }

  .dna-glow {
    width: 270px;
    height: 270px;
  }
}

/* Enhanced loading state */
.dna-strand.loading {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s ease-out;
}

.dna-strand.loaded {
  opacity: 1;
  transform: scale(1);
}

/* Accessibility and interaction improvements */
:focus-visible {
  outline: 2px solid var(--color-primary-orange);
  outline-offset: 2px;
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .rotating-dna {
    animation: none;
  }
  
  .dna-glow {
    animation: none;
    opacity: 0.3;
  }
  
  * {
    transition: none !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-primary-orange: #e55a15;
    --color-dark-gray: #2c2520;
    --color-light-gray: #8a7f79;
  }
}