/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #2c3e50;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  overflow-x: hidden;
}
/* common */
.left{
  float: left;
}

.right{
  float: right;
}

.paused {
  animation-play-state: paused !important;
}

.border-red { border-left: 5px solid #e74c3c !important; }
.border-orange { border-left: 5px solid #f39c12 !important; }
.border-green { border-left: 5px solid #2ecc71 !important; }
.border-blue { border-left: 5px solid #3498db !important; }
.border-pink { border-left: 5px solid #fe2afe !important; }
.border-purple { border-left: 5px solid #c834db !important; }
.border-white { border-left: 5px solid #ffffff !important; }

/* main */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: fadeOut 3s ease-in-out 2s forwards;
}
@keyframes fadeOut {
  to {
    opacity: 0;
    visibility: hidden;
  }
}
.dna-loader {
  text-align: center;
  color: white;
}

.dna-helix-loader {
  width: 80px;
  height: 100px;
  position: relative;
  margin: 0 auto 20px;
}

.dna-base {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  animation: dnaRotate 2s linear infinite;
}
@keyframes dnaRotate {
  0% { transform: rotateY(0deg) rotateX(0deg) translateZ(40px); }
  100% { transform: rotateY(360deg) rotateX(360deg) translateZ(40px); }
}
.dna-base.a {
  background: #ff6b6b;
  top: 0;
  left: 0;
  animation-delay: 0s;
}

.dna-base.t {
  background: #4ecdc4;
  top: 0;
  right: 0;
  animation-delay: 0.5s;
}

.dna-base.g {
  background: #45b7d1;
  bottom: 0;
  left: 0;
  animation-delay: 1s;
}

.dna-base.c {
  background: #96ceb4;
  bottom: 0;
  right: 0;
  animation-delay: 1.5s;
}





/* Header */
.main-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.header-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.main-header:hover .header-background {
  opacity: 0.1;
}

.navigation {
  position: relative;
  z-index: 2;
}
/* navigation */
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-project {
  position: relative;
  width: auto;
  height: 40px;
}

.name-line {
  position: absolute;
  width: 5px;
  height: 100%;
  background: linear-gradient(to bottom, #667eea, #764ba2);
  border-radius: 2px;
  animation: mininame-line 3s linear infinite;
}

@keyframes mininame-line {
  0%, 100% { transform: rotateY(0deg); }
  50% { transform: rotateY(360deg); }
}

.name-line:first-child {
  left: 0;
}

.name-line:last-child {
  right: 0;
  animation-delay: 1.5s;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.dropdown {
  position: relative;
}


.nav-link {
  text-decoration: none;
  color: #2c3e50;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  transition: left 0.3s ease;
  z-index: -1;
  border-radius: 50px;
}

.nav-link:hover::before {
  left: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.nav-link.active{
    left: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateY(-2px);
}

.nav-link:hover {
  color: white;
}

.dropdown-content {
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  min-width: 200px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
}

.dropdown:hover .dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-content a {
  display: block;
  padding: 0.75rem 1rem;
  color: #2c3e50;
  text-decoration: none;
  transition: all 0.3s ease;
  border-radius: 8px;
  margin: 0.25rem;
}

.dropdown-content a:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.floating-molecules {
  position: absolute;
  width: 100%;
  height: 100%;
}

.molecule {
  position: absolute;
  font-size: 2rem;
  animation: float 6s ease-in-out infinite;
  opacity: 0.3;
}

.molecule-1 { top: 10%; left: 10%; animation-delay: 0s; }
.molecule-2 { top: 20%; right: 15%; animation-delay: 1s; }
.molecule-3 { top: 60%; left: 5%; animation-delay: 2s; }
.molecule-4 { bottom: 20%; right: 10%; animation-delay: 3s; }
.molecule-5 { top: 40%; left: 80%; animation-delay: 4s; }
.molecule-6 { bottom: 10%; left: 70%; animation-delay: 5s; }
.molecule-7 { bottom: 10%; left: 50%; animation-delay: 4s; }
.molecule-8 { top: 10%; right: 60%; animation-delay: 5s; }

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-20px) rotate(120deg); }
  66% { transform: translateY(10px) rotate(240deg); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 2;
      display: flex;
  align-items: center;
  justify-content: center;
}
.typewriter-container {
  font-size: 4rem;
  font-weight: bold;
  font-family: 'Poppins', Nunito;
  white-space: nowrap;
  overflow: hidden;
  border-right: 2px solid #000;
  width: fit-content;
  margin: 0 auto;
  color: #FFECB3;
  display: flex;

}

#typewriter{
  white-space: nowrap;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-arrow {
  width: 30px;
  height: 30px;
  border: 2px solid white;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(45deg); }
  40% { transform: translateY(-10px) rotate(45deg); }
  60% { transform: translateY(-5px) rotate(45deg); }
}

/* Section Styles */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  font-size: 1.2rem;
  color: #7f8c8d;
  max-width: 600px;
  margin: 0 auto;
}

/* About Section */
.About-section {
  background: linear-gradient(135deg, #f5f5dc , #c3cfe2 );
}

.About-introduce {
  display: grid;
  grid-template-columns: 1fr ;
  gap: 9rem;
  margin-bottom: 6rem;
}

.About-type {
  background: #ffffff;
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  text-align: justify;
  overflow: hidden;
  position: relative;
  z-index: 1;


}

.About-type:hover {
  transform: translateY(-10px);
}
.About-type::before {
  content: '';
  position: absolute;
  top: 0;
  left: 100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  transition: left 0.3s ease-in-out;
  z-index: 1;
  opacity: 0.1;
}

.About-type:hover::before {
  left: 0;

}
.About-type h3 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: #2c3e50;
  text-align: center;
}

.About-type p {
  font-size: 1.3rem;
}
/* Key Features */
.Key-Features {
  margin-top: 4rem;
}

.Key-Features h3 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #2c3e50;
}

.Features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr ;
  gap: 2rem;
}

.Features-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}


.Features-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  transition: left 0.3s ease;
  z-index: 1;
  opacity: 0.1;
}

.Features-card:hover::before {
  left: 0;
}

.Features-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.Features-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  position: relative;
  z-index: 2;
}

.Features-orange-icon {
  background: linear-gradient(45deg, #ff6b6b, #e74c3c);
}

.Features-blue-icon {
  background: linear-gradient(45deg, #4ecdc4, #45b7d1);
}

.Features-green-icon {
  background: linear-gradient(45deg, #2ecc71, #27ae60);
}

.Features-purple-icon {
  background: linear-gradient(45deg, #9b59b6, #8e44ad);
}

.Features-card h4 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #2c3e50;
  position: relative;
  z-index: 2;
}

.Features-card p {
  color: #7f8c8d;
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.Features-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  position: relative;
  z-index: 2;
}

.Features-card:hover .Features-details {
  max-height: 200px;
}

.Features-details ul {
  list-style: none;
  text-align: left;
}

.Features-details li {
  padding: 0.25rem 0;
  color: #2c3e50;
  font-size: 0.9rem;
}

.Features-details li::before {
  content: '→';
  margin-right: 0.5rem;
  color: #667eea;
}
/* Benefits */
.Benefits-section {
  background: linear-gradient(135deg, #667eead9,#6a88eca9,#5e6fdfc9,#7e5bef , #764ba2 ,#8e44ad,#a678de,#9270d7,#6c5ce7,#ff0000);
animation: gradientShift 10s ease-out infinite;
  color: white;
   background-size: 800% 800%;
}
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.Benefits-section .section-header{
  display: grid;
}
.Benefits-section .section-title {
  color: white;
  -webkit-text-fill-color: white;
}

.Benefits-section .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.dna-structure-complex {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6rem;
  width: 100%;
}

.Benefits-info{
  position: relative;
  z-index: 100;
  width: 100%;
}

.Benefits-facts {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.Benefits-fact-card {
  background: rgba(255, 255, 255, 0.1);
  padding: 1.5rem;
  border-radius: 15px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
  width: 100%;
  overflow: hidden;
}

.Benefits-fact-card h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}
.Benefits-fact-card:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(10px);
}

.Benefits-fact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right,transparent,rgb(0, 255, 0) 20%,rgb(0, 255, 0) 70% );
  transition: all 0.5s ease;
  opacity: 0.1;
}

.Benefits-fact-card:hover::before {
  left: 0;
  opacity: 0.6;

}

.Benefits-fact-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.tick{
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  position: absolute;
  transition: all 0.3s ease;
  color: rgb(255, 255, 255);
  font-size: 100px;
  opacity: 0;
  transition: all 1s ease-out;
}
.Benefits-fact-card:hover .tick{
  opacity: 1;
}

.dna-helix-complex {
  display: flex;
  justify-content: center;
  align-items: center;
  position:absolute;
  z-index: 1;
margin-top: -50px;
}

.helix-container {

  margin-top: 60px;
  position: relative;
  width: 200px;
  height: 485px;
  animation: helixRotate 10s linear infinite;
  z-index: 1;
}

@keyframes helixRotate {
  from { transform: rotateY(0deg); }
  to { transform: rotateY(360deg); }
}

.base-pair {
  position: absolute;
  width: 100%;
  height: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

.bp-1 { top: 10px; }
.bp-2 { top: 70px; }
.bp-3 { top: 130px; }
.bp-4 { top: 190px; }
.bp-5 { top: 250px; }
.bp-6 { top: 310px; }
.bp-7 { top: 370px; }
.bp-8 { top: 430px; }

.base {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: white;
  font-size: 1.2rem;
  animation: basePulse 2s ease-in-out infinite;
}

.adenine { background: #ff6b6b; }
.thymine { background: #4ecdc4; }
.guanine { background: #45b7d1; }
.cytosine { background: #96ceb4; }

@keyframes basePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.hydrogen-bond {
  flex: 1;
  height: 2px;
  background: rgba(255, 255, 255, 0.6);
  margin: 0 10px;
  position: relative;
}

.hydrogen-bond.triple::before,
.hydrogen-bond.triple::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.6);
}

.hydrogen-bond.triple::before {
  top: -4px;
}

.hydrogen-bond.triple::after {
  bottom: -4px;
}

.sugar-phosphate {
  position: absolute;
  width: 8px;
  height: 100%;
  background: linear-gradient(to bottom,#ffdda3, #ffedcf, #ffffff,#ffdda3, #ffedcf);
  border-radius: 4px;
}

.sugar-phosphate.left { left: 16px; }
.sugar-phosphate.right { right: 16px; }

/* Learning roadmap */
.Learning-roadmap {
  margin: 6rem 0;
}

.Learning-roadmap h3 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
}

.Learning-roadmap-block {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.Learning-roadmap-step {
  background: rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  min-width: 200px;
  transition: all 0.3s ease;
}

.Learning-roadmap-step:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-10px);
}

.Learning-roadmap-step-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.Learning-roadmap-step h4 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.Learning-roadmap-step p {
  font-size: 1.1rem;
  opacity: 0.8;
  margin-bottom: 1rem;
}

.Learning-roadmap-step-animation {
  height: 60px;
  position: relative;
  overflow: hidden;
}

.load-strand.original,
.load-strand.new {
  position: absolute;
  width: 80%;
  height: 4px;
  border-radius: 2px;
  top: 50%;
  left: 10%;
}

.load-strand.original {
  background: #fa8787;
  transform: translateY(-50%);
}

.load-strand.new {
  background: #4ecdc4;
  transform: translateY(-50%);
  animation: changecolorloading-process 7s ease-in-out infinite;
}

@keyframes changecolorloading-process {
  0% { width: 0; background: red; }
  50%{width: 40%; background: yellowgreen;}
  100% { width: 80%; }
}


.arrow-right {
  width: 0;
  height: 0;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 25px solid rgba(255, 255, 255, 0.6);
  animation: bounce-route 1s ease-in-out infinite;
}

@keyframes bounce-route {
  0%   { transform: translateX(0); }
  30%  { transform: translateX(-15px); }
  50%  { transform: translateX(0); }
  70%  { transform: translateX(-7px); }
  100% { transform: translateX(0); }
}
/* testimonial */
.testimonial-section {
  padding: 50px 20px 3rem;
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: white;
  overflow: hidden;

}
.testimonial-section .section-title {
  color: white;
  -webkit-text-fill-color: white;
}

.testimonial-section .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.cursor-wrapper {
  overflow: hidden;
  position: relative;
  margin-bottom: 3rem;

}

.cursor-track {
  display: flex;
  width: max-content;
animation: scroll 70s linear infinite;
}
.delay-animation-avaluate{
animation-delay: 2s !important;

}
@keyframes scroll {
  0% {
  transform: translateX(0);
  }
  100% {
  transform: translateX(-50%);
  }
}
.testimonial {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 2rem;
  margin: 0 10px;
  min-width: 300px;
  flex-shrink: 0;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: all 0.4s ease;
  backdrop-filter: blur(10px);
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

.testimonial:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(5px);

}

.stars {
  color: #facc15;
  margin-bottom: 5px;
  font-size: 25px;
}

.testimonial .user-avatar img {
width: 50px;
height: 50px;
border-radius: 50%;
    }

.testimonial-content p {
font-style: italic;
color: #ffffff;
    }

.testimonial-content strong {
display: block;
margin-top: 10px;
color: #3b6cffd8;
    }
.fade-container {
  position: relative;
  overflow: hidden;
}
.fade-left,
.fade-right {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 600px;
  z-index: 10;
  pointer-events: none;

}

.fade-left {
  left: 0;
  background: linear-gradient(to right, #304457 0%, transparent 100%);
  width: 50%;
}

.fade-right {
  right: 0;
  background: linear-gradient(to left, #33475C 0%, transparent 100%);
  width: 50%;
}

.Mission-Statement-section{
    padding: 5px 20px;
  margin: auto;
  display: flex;
align-items: center;
justify-content: center;
}

blockquote {
  background: #e3f2fd;
  color: #000;
  border-left: 5px solid #1e90ff;
  padding: 20px 30px;
  border-radius: 8px;
  font-style: italic;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  animation: fadeUp 1s ease forwards;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.note {
  font-size: 0.75rem;
  color: #ccc;
  text-align: center;
  margin-top: 16px;
  font-style: italic;
  opacity: 0.6;
}

.footer {
  background: #121212;
  color: #aaa;
  text-align: center;
  padding: 20px 12px;
  font-size: 0.88rem;
}
.inspire-footer {
  padding: 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  text-align: center;
}

.inspire-footer a{
  color: #ccc;
  font-weight: 400;
  font-size: 1rem;
}

/* Media Queries for Responsive Design */
@media (min-width: 1024px) {
  .invisible{
    display: none
  }
}
@media (min-width:740px) and (max-width: 1023px) {

  .nav-container {
    flex-direction: column;
    position: relative;
  padding: 1rem 50px 1rem 0;
  }

  .logo-container{
  }
  .nav-toggle {
    display: none;
  }

  .menu {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    cursor: pointer;
    z-index: 1002;
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
  }

  .menu span {
    width: 100%;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
    transition: all 0.3s ease;
  }

  .nav-toggle:checked ~ .menu span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle:checked ~ .menu span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked ~ .menu span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .nav-menu-wrapper {
    position: fixed;
    top: 0;
    left: -300px;
    width: 250px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 2px 0 32px rgba(0, 0, 0, 0.2);
    z-index: 1001;
    transition: left 0.3s ease-in-out;
    overflow-y: auto;
  }

  .nav-toggle:checked ~ .nav-menu-wrapper {
    left: 0;
  }

  .nav-toggle:checked ~ .nav-container::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(2px);
  }

  .nav-menu {
    flex-direction: column;
    width: 100%;
    padding: 2rem 1rem;
    margin-top: 50px;
  }

  .nav-menu li {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .nav-link {
    font-size: clamp(1rem, 3vw, 1.1rem);
    padding: 0.8rem 1rem;
    display: block;
    text-align: left;
  }

  .dropdown-content {
    position: static;
    width: 100%;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    display: none;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    margin: 0.5rem 0;
    padding: 0.5rem;
  }

  .dropdown:hover .dropdown-content,
  .dropdown:active .dropdown-content {
    display: block;
  }

  .dropdown-content a {
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    padding: 0.5rem 1rem;
    text-align: left;
  }

  .logo-container {
    margin-left: 3rem;
  }

  .hero-content {
    flex-direction: column;
    text-align: center;
    padding: 0 1.5rem;
  }

  .typewriter-container {
    font-size: clamp(2.5rem, 6vw, 3rem);
  }

  .Features-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
  }

  .invisible{
    visibility: hidden;
  }

  .dna-structure-complex {
    flex-direction: column;
    align-items: center;
  }

  .helix-container {
    width: 180px;
    height: 450px;
  }

  .Learning-roadmap-block {
    flex-direction: row;
    gap: 7rem;
  }

  .arrow-right {
    display: block;
    position: absolute;
  }

  .top-arrow-learning{
    top: 63%;
  }

  .right-arrow-learning{
    left: 67%;
    rotate: 90deg;

  }
  .bottom-arrow-learning{
    bottom: 17%;
    rotate: 180deg;

  }
  .testimonial {
    min-width: clamp(260px, 45vw, 280px);
  }

  .fade-left,
  .fade-right {
    width:40%;
  }


}

@media (max-width: 740px) {
  .nav-container {
    flex-direction: column;
    position: relative;
  padding: 1rem 0px 1rem 0;
  }

  .logo-container .logo{
    font-size: 20px;
    text-align: center;
  }
  .logo-project .name-line{
    display: none;
  }
  .nav-toggle {
    display: none;
  }

  .menu {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    cursor: pointer;
    z-index: 1002;
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
  }

  .menu span {
    width: 100%;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
    transition: all 0.3s ease;
  }

  .nav-toggle:checked ~ .menu span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle:checked ~ .menu span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked ~ .menu span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .nav-menu-wrapper {
    position: fixed;
    top: 0;
    left: -300px;
    width: 250px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 2px 0 32px rgba(0, 0, 0, 0.2);
    z-index: 1001;
    transition: left 0.3s ease-in-out;
    overflow-y: auto;
  }

  .nav-toggle:checked ~ .nav-menu-wrapper {
    left: 0;
  }

  .nav-toggle:checked ~ .nav-container::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(2px);
  }

  .nav-menu {
    flex-direction: column;
    width: 100%;
    padding: 2rem 1rem;
    margin-top: 50px;
  }

  .nav-menu li {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .nav-link {
    font-size: clamp(1rem, 3vw, 1.1rem);
    padding: 0.8rem 1rem;
    display: block;
    text-align: left;
  }

  .dropdown-content {
    position: static;
    width: 100%;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    display: none;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    margin: 0.5rem 0;
    padding: 0.5rem;
  }

  .dropdown:hover .dropdown-content,
  .dropdown:active .dropdown-content {
    display: block;
  }

  .dropdown-content a {
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    padding: 0.5rem 1rem;
    text-align: left;
  }


  .typewriter-container {
    font-size:1rem;
  }

  .section-title {
    font-size: clamp(1.8rem, 4.5vw, 2.2rem);
  }

  .section-subtitle {
    font-size: clamp(0.9rem, 2.5vw, 1rem);
  }


  .About-type {
    padding: 1.3rem;
  }

  .About-type h3 {
    font-size: 1.4rem;
  }

  .About-type p {
    font-size: 0.95rem;
  }

  .Key-Features h3 {
    font-size: 1.4rem;
  }
  .Features-grid{
    grid-template-columns: 1fr;
  }
  .invisible{
    display: none;
  }

  .Features-card {
    padding: 1.5rem;
  }

  .Features-card h4 {
    font-size: 1.1rem;
  }

  .Features-card p {
    font-size: 0.85rem;
  }

  .Features-details li {
    font-size: 0.8rem;
  }

  .Benefits-facts {
    grid-template-columns: 1fr;
  }

  .Benefits-fact-card {
    padding: 1.2rem;
  }

  .Benefits-fact-card h4 {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
  }

  .Benefits-fact-card p {
    font-size: clamp(0.85rem, 2vw, 0.9rem);
  }

  .Benefits-fact-icon {
    font-size: clamp(1.5rem, 3vw, 1.8rem);
  }

  .tick {
    font-size: clamp(60px, 10vw, 70px);
  }

  .helix-container {
    width: 160px;
    height: 400px;
  }

  .base {
    width: 35px;
    height: 35px;
    font-size: clamp(0.9rem, 2vw, 1rem);
  }


  .Learning-roadmap h3 {
    font-size: clamp(1.4rem, 3.5vw, 1.6rem);
  }

  .Learning-roadmap-step {
    padding: 1.2rem;
    min-width: 180px;
    margin-bottom: 30px;
  }

  .Learning-roadmap-step-icon {
    font-size: clamp(2rem, 5vw, 2.5rem);
  }

  .Learning-roadmap-step h4 {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
  }

  .Learning-roadmap-step p {
    font-size: clamp(0.85rem, 2.5vw, 0.95rem);
  }
  .arrow-right{
    position: absolute;
  }
  .top-arrow-learning{
    rotate: 90deg;
    top: 54.5%;
  }
  .right-arrow-learning{
    rotate: 90deg;
    top: 79.2%;
  }
  .bottom-arrow-learning{
    rotate: 90deg;
    top: 66.9%;
  }
  .testimonial {
    padding: 1.2rem;
    min-width: clamp(220px, 80vw, 260px);
  }

  .stars {
    font-size: clamp(18px, 4vw, 20px);
  }

  .testimonial-content p {
    font-size: clamp(0.85rem, 2.5vw, 0.95rem);
  }

  .testimonial-content strong {
    font-size: clamp(0.8rem, 2vw, 0.9rem);
  }

  .fade-left,
  .fade-right {
    width: 30%;
  }
}