/* DNA Helix Animation */

.dna-helix {

  position: relative;

  width: 200px;

  height: 400px;

  margin: 0 auto;

  perspective: 1200px;

  transform-style: preserve-3d;

  will-change: transform; /* Optimize animation performance */

}

.base-pair {

  position: absolute;

  width: 100%;

  height: 20px;

  animation: rotate 8s linear infinite;

  transform-style: preserve-3d;

  backface-visibility: hidden; /* Prevent flickering */

  will-change: transform;

}

.base {

  position: absolute;

  width: 25px;

  height: 25px;

  border-radius: 50%;

  display: flex;

  align-items: center;

  justify-content: center;

  font-weight: bold;

  color: white;

  text-shadow: 0 0 3px rgba(0,0,0,0.5);

  box-shadow: 0 0 15px rgba(0,0,0,0.2);

  backface-visibility: hidden;

}

.left-base {

  left: 35px;

  background: #FF0066;

  animation: pulse 3s ease-in-out infinite;

  filter: brightness(1.1);

}

.right-base {

  right: 35px;

  background: #00B7FF;

  animation: pulse 3s ease-in-out infinite;

  filter: brightness(1.1);

}

.base-connector {

  position: absolute;

  left: 50%;

  width: 90px;

  height: 3px;

  background: linear-gradient(90deg, 

      rgba(255, 0, 102, 0.8), 

      rgba(255, 255, 255, 0.3) 50%,

      rgba(0, 183, 255, 0.8)

  );

  transform: translateX(-50%);

  box-shadow: 0 0 8px rgba(0,0,0,0.15);

}

@keyframes rotate {

  0% { transform: rotateY(0deg) translateZ(40px) translateX(-20px); }

  12.5% { transform: rotateY(45deg) translateZ(40px) translateX(-15px); }

  25% { transform: rotateY(90deg) translateZ(40px) translateX(0px); }

  37.5% { transform: rotateY(135deg) translateZ(40px) translateX(15px); }

  50% { transform: rotateY(180deg) translateZ(40px) translateX(20px); }

  62.5% { transform: rotateY(225deg) translateZ(40px) translateX(15px); }

  75% { transform: rotateY(270deg) translateZ(40px) translateX(0px); }

  87.5% { transform: rotateY(315deg) translateZ(40px) translateX(-15px); }

  100% { transform: rotateY(360deg) translateZ(40px) translateX(-20px); }

}

@keyframes pulse {

  0% { transform: scale(1); opacity: 0.9; filter: brightness(1.1); }

  50% { transform: scale(1.15); opacity: 1; filter: brightness(1.3); }

  100% { transform: scale(1); opacity: 0.9; filter: brightness(1.1); }

}

/* DNAnalyzer - Main Stylesheet

* Global styles for all pages

*/

/* Notification Banner Styling */

.notification-banner {

  background: linear-gradient(135deg, #FF6F00, #FF9100);

  color: var(--white);

  padding: 0.75rem 1rem 0.75rem 0.75rem;

  text-align: center;

  font-size: 1rem;

  font-weight: 600;

  position: fixed;

  top: 0;

  left: 0;

  width: 100%;

  z-index: var(--z-navbar);

  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);

  animation: notifPulse 3s infinite;

  transition: transform 0.3s ease-in-out;

  display: flex;

  flex-wrap: wrap;

  justify-content: center;

  align-items: center;

}

.notification-banner.hide-notification {

  transform: translateY(-100%);

}

.notification-banner.closed {

  display: none !important;

}

.notification-banner .notification-link {

  color: inherit;

  text-decoration: none;

  font-weight: 700;

  background-color: rgba(255, 255, 255, 0.2);

  padding: 0.25rem 0.5rem;

  border-radius: 4px;

  margin: 0 0.5rem;

  transition: all 0.3s ease;

  white-space: nowrap;

}

.notification-banner .notification-link:hover {

  color: #FFD700;

  text-shadow: 0 0 5px rgba(255, 215, 0, 0.5);

}

.notification-banner .notification-close {

  background: rgba(255, 255, 255, 0.1);

  border: none;

  color: var(--white);

  font-size: 1.25rem;

  line-height: 1;

  position: absolute;

  right: 0.5rem;

  top: 50%;

  transform: translateY(-50%);

  cursor: pointer;

  transition: all 0.3s ease;

  width: 24px;

  height: 24px;

  display: flex;

  align-items: center;

  justify-content: center;

  border-radius: 50%;

  padding: 0;

}

.notification-banner .notification-close::before {

  content: "×";

  display: block;

  position: relative;

  top: -1px;

}

.notification-banner .notification-close:hover {

  background: rgba(255, 255, 255, 0.2);

  transform: translateY(-50%) rotate(90deg);

  color: #FFD700;

  text-shadow: 0 0 5px rgba(255, 215, 0, 0.5);

}

:root {

  /* Brand colors from logo */

  --magenta: #ff0066;

  --blue: #00a4ef;

  --orange: #f48022;

  --white: #ffffff;

  --dark-bg: #001427;

  /* Additional UI colors */

  --dark-blue: #051e3e;

  --light-blue: #2596be;

  --light-gray: #f5f5f7;

  --medium-gray: #86868b;

  --dark-gray: #333333;

  /* Functional colors */

  --success: #34c759;

  --warning: #ff9500;

  --error: #ff3b30;

  /* Typography */

  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --font-mono: 'IBM Plex Mono', monospace;

  /* Spacing */

  --space-xs: 0.25rem;

  --space-sm: 0.5rem;

  --space-md: 1rem;

  --space-lg: 1.5rem;

  --space-xl: 2rem;

  --space-xxl: 3rem;

  /* Border radius */

  --radius-sm: 4px;

  --radius-md: 8px;

  --radius-lg: 12px;

  --radius-xl: 20px;

  /* Shadows */

  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.1);

  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);

  --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.2);

  /* Transitions */

  --transition-fast: 0.2s ease;

  --transition-normal: 0.3s ease;

  --transition-slow: 0.5s ease;

  /* Z-index layers */

  --z-tooltip: 100;

  --z-navbar: 200;

  --z-modal: 300;

}

/* Reset & Base Styles */

*, 

*::before, 

*::after {

  box-sizing: border-box;

  margin: 0;

  padding: 0;

}

html {

  font-size: 16px;

  scroll-behavior: smooth;

}

body {

  font-family: var(--font-body);

  background-color: var(--dark-bg);

  color: var(--white);

  line-height: 1.6;

  overflow-x: hidden;

  min-height: 100vh;

  display: flex;

  flex-direction: column;

  -webkit-font-smoothing: antialiased;

  -moz-osx-font-smoothing: grayscale;

}

h1, h2, h3, h4, h5, h6 {

  font-family: var(--font-heading);

  line-height: 1.2;

  font-weight: 700;

  margin-bottom: var(--space-md);

}

h1 {

  font-size: 3.5rem;

  margin-bottom: var(--space-lg);

}

h2 {

  font-size: 2.5rem;

  margin-bottom: var(--space-lg);

}

h3 {

  font-size: 1.75rem;

}

h4 {

  font-size: 1.375rem;

}

p {

  margin-bottom: var(--space-md);

  color: rgba(255, 255, 255, 0.85);

}

a {

  color: var(--blue);

  text-decoration: none;

  transition: color var(--transition-fast);

}

a:hover {

  color: var(--light-blue);

}

img {

  max-width: 100%;

  height: auto;

}

button {

  font-family: var(--font-body);

  cursor: pointer;

}

code, pre {

  font-family: var(--font-mono);

}

ul, ol {

  padding-left: var(--space-lg);

  margin-bottom: var(--space-md);

}

/* Container */

.container {

  width: 100%;

  max-width: 1200px;

  margin: 0 auto;

  padding: 0 var(--space-lg);

}

.container-sm {

  max-width: 800px;

}

.container-lg {

  max-width: 1400px;

}

/* Navbar */

.navbar {

  position: fixed;

  top: var(--notification-height, 0);

  left: 0;

  right: 0;

  background: var(--dark-bg);

  border-bottom: 1px solid rgba(255, 255, 255, 0.08);

  z-index: var(--z-navbar);

  padding: var(--space-md) 0;

  transition: all var(--transition-normal), top 0.3s ease-in-out;

}

.navbar.scrolled {

  background: var(--dark-blue);

  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);

  padding: var(--space-sm) 0;

}

.navbar-container {

  display: flex;

  align-items: center;

  justify-content: space-between;

}

.logo {

  display: flex;

  align-items: center;

}

.logo img {

  height: 36px;

  margin-right: var(--space-sm);

}

.logo-text {

  font-size: 1.25rem;

  font-weight: 700;

  color: var(--white);

}

.nav-links {

  display: flex;

  align-items: center;

  list-style: none;

  margin: 0;

  padding: 0;

}

.nav-links li {

  margin: 0 var(--space-md);

}

.nav-links a {

  color: var(--white);

  font-weight: 500;

  position: relative;

  padding: var(--space-xs) 0;

}

.nav-links a::after {

  content: '';

  position: absolute;

  width: 0;

  height: 2px;

  bottom: 0;

  left: 0;

  background: linear-gradient(90deg, var(--magenta), var(--blue));

  transition: width var(--transition-normal);

}

.nav-links a:hover::after,

.nav-links a.active::after {

  width: 100%;

}

.nav-buttons {

  display: flex;

  align-items: center;

}

.mobile-toggle {

  display: none;

  background: none;

  border: none;

  color: var(--white);

  font-size: 1.5rem;

}

/* Buttons */

.btn {

  display: inline-flex;

  align-items: center;

  justify-content: center;

  padding: 0.75rem 1.5rem;

  border-radius: var(--radius-md);

  font-weight: 600;

  transition: all var(--transition-fast);

  border: none;

  text-align: center;

  cursor: pointer;

}

.btn-primary {

  background: linear-gradient(135deg, #FF7B00, #FFB347);

  color: var(--white);

}

.btn-primary:hover {

  transform: translateY(-2px);

  box-shadow: 0 5px 15px rgba(0, 164, 239, 0.4);

  color: var(--white);

}

.btn-secondary {

  background: rgba(255, 255, 255, 0.1);

  color: var(--white);

  border: 1px solid rgba(255, 255, 255, 0.2);

}

.btn-secondary:hover {

  background: rgba(255, 255, 255, 0.15);

  transform: translateY(-2px);

  color: var(--white);

}

.btn-sm {

  padding: 0.5rem 1rem;

  font-size: 0.875rem;

}

.btn-lg {

  padding: 1rem 2rem;

  font-size: 1.125rem;

}

.btn-icon {

  margin-right: var(--space-xs);

}

.btn-github {

  background: #24292e;

  color: var(--white);

}

.btn-github:hover {

  background: #2c3440;

  color: var(--white);

}

.btn-discord {

  background: #5865F2;

  color: var(--white);

}

.btn-discord:hover {

  background: #4752c4;

  color: var(--white);

}

/* Hero section */

.hero {

  padding: 160px 0 100px;

  position: relative;

  overflow: hidden;

}

.hero-content {

  display: grid;

  grid-template-columns: 1fr 1fr;

  gap: var(--space-xxl);

  align-items: center;

}

.hero-headings {

  position: relative;

  z-index: 2;

}

.hero h1 {

  margin-bottom: var(--space-md);

  letter-spacing: -0.02em;

  line-height: 1.1;

}

.hero h1 span {

  background: linear-gradient(135deg, var(--magenta), var(--blue));

  -webkit-background-clip: text;

  background-clip: text;

  -webkit-text-fill-color: transparent;

}

.hero-subtitle {

  font-size: 1.25rem;

  margin-bottom: var(--space-xl);

  color: rgba(255, 255, 255, 0.85);

  max-width: 500px;

}

.hero-buttons {

  display: flex;

  gap: var(--space-md);

  margin-bottom: var(--space-xl);

}

.hero-animation {

  position: relative;

  width: 100%;

  height: 500px;

  display: flex;

  align-items: center;

  justify-content: center;

}

/* DNA Helix Animation */

.dna-helix {

  position: relative;

  width: 100%;

  height: 100%;

  transform-style: preserve-3d;

  perspective: 1200px;

}

.base-pair {

  position: absolute;

  width: 100%;

  height: 30px;

  display: flex;

  justify-content: center;

  align-items: center;

  animation: rotate3D 12s linear infinite;

}

@keyframes rotate3D {

  0% { transform: rotateY(0deg); }

  100% { transform: rotateY(360deg); }

}

.base {

  width: 35px;

  height: 35px;

  border-radius: 50%;

  display: flex;

  align-items: center;

  justify-content: center;

  font-weight: bold;

  color: white;

  position: absolute;

  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);

}

.left-base {

  background: var(--magenta);

  left: calc(50% - 120px);

  animation: moveLeft 6s ease-in-out infinite;

}

.right-base {

  background: var(--blue);

  right: calc(50% - 120px);

  animation: moveRight 6s ease-in-out infinite;

}

.base-connector {

  width: 200px;

  height: 3px;

  background: linear-gradient(90deg, var(--magenta), var(--blue));

  position: absolute;

  animation: stretch 6s ease-in-out infinite;

  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);

}

@keyframes moveLeft {

  0%, 100% { transform: translateX(-12px); }

  50% { transform: translateX(12px); }

}

@keyframes moveRight {

  0%, 100% { transform: translateX(12px); }

  50% { transform: translateX(-12px); }

}

@keyframes stretch {

  0%, 100% { width: 200px; }

  50% { width: 220px; }

}

/* Section styling */

.section {

  padding: var(--space-xxl) 0;

  position: relative;

}

.section-title {

  text-align: center;

  margin-bottom: var(--space-xxl);

}

.section-title h2 {

  margin-bottom: var(--space-md);

}

.section-title p {

  max-width: 700px;

  margin: 0 auto;

  font-size: 1.1rem;

}

.section-bg-dark {

  background-color: var(--dark-blue);

}

.section-bg-gradient {

  background: linear-gradient(135deg, rgba(5, 30, 62, 0.7), rgba(0, 20, 39, 0.7));

}

/* Cards */

.card {

  background: rgba(255, 255, 255, 0.05);

  border-radius: var(--radius-lg);

  padding: var(--space-xl);

  transition: all var(--transition-normal);

  border: 1px solid rgba(255, 255, 255, 0.1);

}

.card:hover {

  transform: translateY(-5px);

  background: rgba(255, 255, 255, 0.08);

  box-shadow: var(--shadow-md);

  border-color: rgba(255, 255, 255, 0.15);

}

.card-title {

  font-size: 1.3rem;

  margin-bottom: var(--space-md);

}

.card-icon {

  width: 60px;

  height: 60px;

  background: linear-gradient(135deg, var(--magenta), var(--blue));

  border-radius: var(--radius-md);

  display: flex;

  align-items: center;

  justify-content: center;

  font-size: 1.5rem;

  color: var(--white);

  margin-bottom: var(--space-md);

}

.card-grid {

  display: grid;

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

  gap: var(--space-xl);

}

/* Feature cards */

.feature-card {

  display: flex;

  align-items: flex-start;

  gap: var(--space-lg);

  padding: var(--space-xl);

  background: rgba(255, 255, 255, 0.05);

  border-radius: var(--radius-lg);

  transition: all var(--transition-normal);

  border: 1px solid rgba(255, 255, 255, 0.1);

  margin-bottom: var(--space-xl);

}

.feature-card:hover {

  transform: translateY(-5px);

  background: rgba(255, 255, 255, 0.08);

  box-shadow: var(--shadow-md);

  border-color: rgba(255, 255, 255, 0.15);

}

.feature-icon {

  min-width: 60px;

  height: 60px;

  border-radius: var(--radius-md);

  display: flex;

  align-items: center;

  justify-content: center;

  font-size: 1.5rem;

}

.feature-icon-blue {

  background: rgba(0, 164, 239, 0.15);

  color: var(--blue);

  border: 1px solid rgba(0, 164, 239, 0.3);

}

.feature-icon-magenta {

  background: rgba(255, 0, 102, 0.15);

  color: var(--magenta);

  border: 1px solid rgba(255, 0, 102, 0.3);

}

.feature-icon-orange {

  background: rgba(244, 128, 34, 0.15);

  color: var(--orange);

  border: 1px solid rgba(244, 128, 34, 0.3);

}

.feature-content h3 {

  margin-bottom: var(--space-sm);

}

/* Stats */

.stats-section {

  padding: var(--space-xxl) 0;

  text-align: center;

  position: relative;

  background: linear-gradient(135deg, rgba(5, 30, 62, 0.7), rgba(0, 20, 39, 0.7));

  border-top: 1px solid rgba(255, 255, 255, 0.05);

  border-bottom: 1px solid rgba(255, 255, 255, 0.05);

}

.stats-grid {

  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));

  gap: var(--space-xl);

  text-align: center;

  max-width: 1000px;

  margin: 0 auto;

}

.stat-item {

  padding: var(--space-md);

}

.stat-number {

  font-size: 3rem;

  font-weight: 700;

  margin-bottom: var(--space-xs);

  background: linear-gradient(135deg, var(--magenta), var(--blue));

  -webkit-background-clip: text;

  background-clip: text;

  -webkit-text-fill-color: transparent;

}

.stat-label {

  color: rgba(255, 255, 255, 0.8);

  font-size: 1rem;

  font-weight: 500;

}

/* Steps */

.steps-container {

  counter-reset: step;

  position: relative;

}

.step-item {

  position: relative;

  padding-left: 70px;

  margin-bottom: var(--space-xl);

}

.step-item::before {

  counter-increment: step;

  content: counter(step);

  position: absolute;

  left: 0;

  top: 0;

  width: 50px;

  height: 50px;

  background: linear-gradient(135deg, var(--magenta), var(--blue));

  border-radius: 50%;

  display: flex;

  align-items: center;

  justify-content: center;

  font-weight: 700;

  font-size: 1.25rem;

  color: var(--white);

}

.step-item:not(:last-child)::after {

  content: '';

  position: absolute;

  left: 25px;

  top: 50px;

  bottom: -40px;

  width: 2px;

  background: linear-gradient(to bottom, var(--blue), transparent);

}

.step-content h3 {

  margin-bottom: var(--space-sm);

}

/* Footer */

.footer {

  background: var(--dark-blue);

  padding: var(--space-xxl) 0 var(--space-md);

  border-top: 1px solid rgba(255, 255, 255, 0.1);

}

.footer-grid {

  display: grid;

  grid-template-columns: 2fr 1fr 1fr 1fr;

  gap: var(--space-xl);

}

.footer-brand {

  display: flex;

  flex-direction: column;

}

.footer-brand img {

  height: 40px;

  margin-bottom: var(--space-md);

}

.footer-brand p {

  margin-bottom: var(--space-lg);

  color: rgba(255, 255, 255, 0.7);

}

.footer-social {

  display: flex;

  gap: var(--space-md);

}

.social-link {

  width: 36px;

  height: 36px;

  border-radius: 50%;

  background: rgba(255, 255, 255, 0.1);

  display: flex;

  align-items: center;

  justify-content: center;

  color: var(--white);

  transition: all var(--transition-fast);

}

.social-link:hover {

  background: rgba(255, 255, 255, 0.2);

  transform: translateY(-2px);

  color: var(--white);

}

.footer-nav h4 {

  margin-bottom: var(--space-lg);

  color: var(--white);

  font-size: 1.1rem;

}

.footer-nav ul {

  list-style: none;

  padding: 0;

  margin: 0;

}

.footer-nav li {

  margin-bottom: var(--space-sm);

}

.footer-nav a {

  color: rgba(255, 255, 255, 0.7);

  transition: color var(--transition-fast);

}

.footer-nav a:hover {

  color: var(--white);

}

.footer-bottom {

  margin-top: var(--space-xxl);

  padding-top: var(--space-md);

  border-top: 1px solid rgba(255, 255, 255, 0.1);

  display: flex;

  justify-content: space-between;

  align-items: center;

  flex-wrap: wrap;

  gap: var(--space-md);

}

.footer-copyright {

  color: rgba(255, 255, 255, 0.6);

  font-size: 0.875rem;

}

.footer-links {

  display: flex;

  gap: var(--space-lg);

}

.footer-links a {

  color: rgba(255, 255, 255, 0.6);

  font-size: 0.875rem;

}

.footer-links a:hover {

  color: var(--white);

}

/* Background effects */

.bg-gradient {

  position: absolute;

  top: 0;

  left: 0;

  width: 100%;

  height: 100%;

  overflow: hidden;

  z-index: -1;

}

.bg-blob {

  position: absolute;

  border-radius: 50%;

  filter: blur(60px);

  opacity: 0.5;

}

.bg-blob-1 {

  top: -200px;

  right: -100px;

  width: 600px;

  height: 600px;

  background: linear-gradient(135deg, rgba(255, 0, 102, 0.2), rgba(0, 0, 0, 0));

  animation: float 20s ease-in-out infinite alternate;

}

.bg-blob-2 {

  bottom: -150px;

  left: -100px;

  width: 500px;

  height: 500px;

  background: linear-gradient(135deg, rgba(0, 164, 239, 0.2), rgba(0, 0, 0, 0));

  animation: float 15s ease-in-out infinite alternate-reverse;

}

@keyframes float {

  0% { transform: translate(0, 0) rotate(0deg); }

  100% { transform: translate(40px, 40px) rotate(15deg); }

}

/* Utilities */

.text-center {

  text-align: center;

}

.mb-sm {

  margin-bottom: var(--space-sm);

}

.mb-md {

  margin-bottom: var(--space-md);

}

.mb-lg {

  margin-bottom: var(--space-lg);

}

.mb-xl {

  margin-bottom: var(--space-xl);

}

.mt-sm {

  margin-top: var(--space-sm);

}

.mt-md {

  margin-top: var(--space-md);

}

.mt-lg {

  margin-top: var(--space-lg);

}

.mt-xl {

  margin-top: var(--space-xl);

}

.gradient-text {

  background: linear-gradient(135deg, var(--magenta), var(--blue));

  -webkit-background-clip: text;

  background-clip: text;

  -webkit-text-fill-color: transparent;

}

/* Responsive styles */

@media screen and (max-width: 1024px) {

  h1 {

    font-size: 3rem;

  }

  h2 {

    font-size: 2.25rem;

  }

  .hero-content {

    grid-template-columns: 1fr;

    text-align: center;

  }

  .hero-subtitle {

    margin-left: auto;

    margin-right: auto;

  }

  .hero-buttons {

    justify-content: center;

  }

  .hero-animation {

    margin-top: var(--space-xl);

  }

  .footer-grid {

    grid-template-columns: 1fr 1fr;

    gap: var(--space-xl) var(--space-xxl);

  }

}

@media screen and (max-width: 768px) {

  h1 {

    font-size: 2.5rem;

  }

  h2 {

    font-size: 2rem;

  }

  .navbar-container {

    position: relative;

  }

  .nav-links {

    position: absolute;

    top: 100%;

    left: 0;

    right: 0;

    flex-direction: column;

    background: var(--dark-bg);

    padding: var(--space-lg);

    transform: translateY(-100%);

    opacity: 0;

    visibility: hidden;

    transition: all var(--transition-normal);

    border-bottom: 1px solid rgba(255, 255, 255, 0.1);

  }

  .nav-links.active {

    transform: translateY(0);

    opacity: 1;

    visibility: visible;

  }

  .nav-links li {

    margin: var(--space-sm) 0;

  }

  .mobile-toggle {

    display: block;

  }

  .hero-buttons {

    flex-direction: column;

    width: 100%;

    max-width: 300px;

    margin-left: auto;

    margin-right: auto;

  }

  .feature-card {

    flex-direction: column;

  }

  .footer-grid {

    grid-template-columns: 1fr;

    gap: var(--space-xl);

  }

  .footer-bottom {

    flex-direction: column;

    align-items: center;

    text-align: center;

  }

}

@media screen and (max-width: 480px) {

  .container {

    padding: 0 var(--space-md);

  }

  h1 {

    font-size: 2rem;

  }

  h2 {

    font-size: 1.75rem;

  }

  .stats-grid {

    grid-template-columns: 1fr;

  }

}

@media screen and (max-width: 768px) {