@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;800&display=swap');

* { 
  margin:0; 
  padding:0; 
  box-sizing:border-box;
}

html { 
  scroll-behavior: smooth; 
}

body { 
  font-family:'Montserrat',sans-serif; 
  background:#000; 
  color:#fff; 
}

.scroll-reveal { 
  opacity:0; 
  transform: translateY(30px); 
  transition: all 0.8s ease-out; 
}

.scroll-reveal.active { 
  opacity:1; 
  transform: translateY(0); 
}

.navbar {
  min-width: 600px;
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  
  background: rgba(0, 0, 0, 0.4); 
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);

  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  padding: 12px 20px;

  display: flex;
  align-items: center;
  gap: 32px;

  z-index: 1000;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-text {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  letter-spacing: 0.8px;
  font-size: 15px;
}

.nav-logo img {
  height: 32px;
  width: auto;
  display: block;
}

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

.nav-links a {
  color: #fff;
  text-decoration: none;
  font-size: 14px;
}

.nav-links a,
.nav-btn {
  position: relative;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-links a::after,
.nav-btn::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: #fff;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.nav-links a:hover::after,
.nav-btn:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-links a:hover,
.nav-btn:hover {
  transform: translateY(-2px);
  opacity: 0.85;
}

.nav-btn {
  background: none;
  border: none;        
  color: #fff;           
  padding: 0;    
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;     
  cursor: pointer;
  opacity: 1;         
}

.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;

  animation: heroFadeUp 0.9s ease-out forwards;
  opacity: 0;
}

.hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero p {
  font-size: 16px;
  color: #aaa;
  margin-bottom: 32px;
  line-height: 1.6;
}

.cta {
  background: #fff;
  color: #000;
  border: none;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 12px;

  transition: 
    transform 0.25s ease,
    box-shadow 0.25s ease,
    background 0.25s ease;
}

.cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 255, 255, 0.25);
}

.cta:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow: 0 6px 14px rgba(255, 255, 255, 0.15);
}

.subtext {
  font-size: 12px;
  color: #666;
}

.hero h1,
.hero p,
.cta,
.subtext {
  opacity: 0;
  transform: translateY(20px);
}

.hero h1 {
  animation: fadeUp 0.8s ease-out forwards;
  animation-delay: 0.2s;
}

.hero p {
  animation: fadeUp 0.8s ease-out forwards;
  animation-delay: 0.4s;
}

.cta {
  animation: fadeUp 0.8s ease-out forwards;
  animation-delay: 0.6s;
}

.subtext {
  animation: fadeUp 0.8s ease-out forwards;
  animation-delay: 0.75s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroFadeUp {
  to {
    opacity: 1;
  }
}

.science {
  min-height: 100vh;
  padding: 140px 8vw;
  background: #000;
  color: #fff;
}

.science-header {
  max-width: 700px;
  margin-bottom: 80px;
}

.science-header h2 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
}

.science-header p {
  font-size: 16px;
  color: #aaa;
  line-height: 1.6;
}

.science-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.science-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 24px;
  transition: transform 0.3s ease, border 0.3s ease;
}

.science-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.2);
}

.app-preview {
  height: 280px;
  border-radius: 16px;
  margin-bottom: 24px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.15),
    rgba(255, 255, 255, 0.02)
  );
}

.science-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.science-card p {
  font-size: 14px;
  color: #aaa;
  line-height: 1.6;
}

.science,
.science-card {
  opacity: 0;
  transform: translateY(30px);
}

.science {
  animation: fadeUp 1s ease-out forwards;
}

.science-card {
  animation: fadeUp 0.8s ease-out forwards;
}

.science-card:nth-child(1) { animation-delay: 0.2s; }
.science-card:nth-child(2) { animation-delay: 0.35s; }
.science-card:nth-child(3) { animation-delay: 0.5s; }

.reviews {
  padding: 160px 8vw;
  background: #000;
  color: #fff;
}

.reviews-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
}

.reviews-main h2 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  margin-bottom: 32px;
}

.reviews-quote {
  font-size: 22px;
  line-height: 1.5;
  color: #ddd;
  margin-bottom: 16px;
}

.reviews-source {
  font-size: 14px;
  color: #888;
}

.reviews-side {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.review-item {
  padding-left: 24px;
  border-left: 2px solid rgba(255, 255, 255, 0.15);
}

.review-item p {
  font-size: 15px;
  line-height: 1.7;
  color: #ccc;
  margin-bottom: 8px;
}

.review-item span {
  font-size: 12px;
  color: #777;
}

.reviews-main,
.review-item {
  opacity: 0;
  transform: translateY(20px);
}

.reviews-main {
  animation: fadeUp 0.9s ease-out forwards;
}

.review-item:nth-child(1) { animation: fadeUp 0.7s ease-out 0.25s forwards; }
.review-item:nth-child(2) { animation: fadeUp 0.7s ease-out 0.4s forwards; }
.review-item:nth-child(3) { animation: fadeUp 0.7s ease-out 0.55s forwards; }

.team {
  padding: 160px 8vw;
  background: #000;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center; 
  text-align: center; 
}


.team-header {
  max-width: 600px;
  margin-bottom: 80px;
}


.team-header h2 {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  margin-bottom: 16px;
}

.team-header p {
  font-size: 16px;
  color: #aaa;
  line-height: 1.6;
}

.team-members {
  display: flex;
  gap: 64px;
  align-items: center;
  justify-content: center; 
  flex-wrap: wrap;        
}
.team-member {
  display: flex;
  align-items: center;
  gap: 20px;
}

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.18),
    rgba(255, 255, 255, 0.04)
  );
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.member-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.member-info span {
  font-size: 13px;
  color: #888;
}

.faq {
  padding: 160px 8vw;
  background: #000;
  color: #fff;
}

.faq-header {
  max-width: 700px;
  margin: 0 auto 80px auto;
  text-align: center;
}

.faq-header h2 {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  margin-bottom: 16px;
}

.faq-header p {
  font-size: 16px;
  color: #aaa;
  line-height: 1.6;
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
  transition: background 0.3s ease;
}

.faq-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 600;
  padding: 20px 24px;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.faq-question:hover {
  transform: translateY(-2px);
  opacity: 0.85;
}

.faq-toggle {
  font-weight: 800;
  font-size: 20px;
  transition: transform 0.3s ease;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
}

.faq-answer p {
  font-size: 15px;
  color: #ccc;
  line-height: 1.7;
  margin: 16px 0;
}

.faq-item.open .faq-answer {
  max-height: 500px; 
  padding-bottom: 16px;
}

.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}

.cta-section {
  padding: 120px 8vw;
  background: #000; 
  color: #fff;
  display: flex;
  justify-content: center;
  text-align: center;
}

.cta-container {
  max-width: 600px;
}

.cta-section h2 {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 16px;
  color: #aaa;
  margin-bottom: 32px;
  line-height: 1.6;
}

.cta-footer {
  background: #fff;
  color: #000;
  border: none;
  padding: 16px 36px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: 
    transform 0.25s ease,
    box-shadow 0.25s ease,
    background 0.25s ease;
}

.cta-footer:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 255, 255, 0.25);
}

.cta-footer:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow: 0 6px 14px rgba(255, 255, 255, 0.15);
}

.footer {
  padding: 80px 8vw 40px 8vw;
  background: #000;
  color: #888;
  font-family: 'Montserrat', sans-serif;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-line {
  width: 1000px; 
  height: 1px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 1px;

  margin-left: auto;
  margin-right: auto;
  margin-bottom: 32px; 
}

.footer-content p {
  font-size: 14px;
  line-height: 1.6;
  margin: 8px 0;
}

.footer-content a {
  color: #888;
  text-decoration: none;
  transition: color 0.25s ease;
}

.footer-content a:hover {
  color: #fff;
}

section {
  scroll-margin-top: 120px;
}

.download-menu {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;            
  visibility: hidden;    
  transform: translateY(-10px);
  
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 16px;
  gap: 12px;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  backdrop-filter: blur(8px);

  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

.download-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0); 
}
.download-link {
  color: #fff;
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  transition: background 0.25s ease, transform 0.25s ease;
}

.download-link:hover {
  background: #fff;
  color: #000;
  transform: translateY(-2px);
}

.store-icon {
  width: 20px; 
  height: 20px;
  margin-right: 12px;
  vertical-align: middle;
}

.download-link:hover {
  background: #fff;
  color: #000;
  transform: translateY(-2px);
}