section {
  max-width: 1100px;
  margin: auto;
  padding: 70px 40px;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: #0f172a;
  color: white;
  margin: 0;
  padding: 0;
  background:
    linear-gradient(#020617, #0f172a),
    radial-gradient(
      circle at center,
      rgba(56, 189, 248, 0.07) 0%,
      rgba(0, 0, 0, 0) 60%
    );
  /* background-blend-mode: overlay; */
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: #020617;
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #38bdf8;
  font-weight: 500;
}

.hero {
  min-height: 60vh;
  padding: 40px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    radial-gradient(
      circle at center,
      rgba(56, 189, 248, 0.12) 0%,
      rgba(2, 6, 23, 0) 60%
    ),
    linear-gradient(#020617, #0f172a);
}

.hero-content {
  max-width: 700px;
  margin: auto;
  animation: fadeUp 0.8s ease;
}

.hero h1 {
  font-size: 52px;
  margin-bottom: 20px;
  line-height: 1.2;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  word-break: keep-all;
}

.hero p {
  color: #cbd5f5;
  margin-bottom: 25px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.btn {
  background: #38bdf8;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  color: black;
  font-weight: 600;
}

.btn:hover {
  background: #0ea5e9;
  transform: translateY(-2px);
}

.btn-outline {
  border: 2px solid #38bdf8;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  color: #38bdf8;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.btn-outline:hover {
  background: #38bdf8;
  color: black;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.7);
}

.btn,
.btn-outline {
  transition: 0.25s;
}

h2 {
  margin-bottom: 40px;
  font-size: 32px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.card {
  background: #020617;
  padding: 25px;
  border-radius: 12px;
  border: 1px solid rgba(56, 189, 248, 0.15);
  transition: all 0.35s ease;
}

.card:hover, 
.highlight:hover {
  transform: translateY(-8px);
  border-color: #38bdf8;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.card img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 15px;
}

.toolbtn {
  display: inline-block;
  margin-top: 10px;
  background: #38bdf8;
  padding: 10px 16px;
  border-radius: 6px;
  color: black;
  text-decoration: none;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

iframe {
  width: 100%;
  width: 100%;
  aspect-ratio: 16/9;
  border: none;
}

footer {
  text-align: center;
  padding: 40px;
  background: #020617;
  margin-top: 40px;
}

.menu-toggle {
  display: none;
  font-size: 28px;
  cursor: pointer;
}

/* MOBILE */

@media (max-width: 768px) {
  header {
    padding: 15px 20px;
  }

  .hero h1 {
    font-size: 30px;
    line-height: 1.25;
    max-width: 300px;
  }

  .hero {
    height: 60vh;
  }

  nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: #020617;
    padding: 20px;
  }

  nav a {
    margin: 10px 0;
  }

  .menu-toggle {
    display: block;
  }

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

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

  iframe {
    height: 200px;
  }

  section {
    padding: 40px 20px;
  }

  .card {
    padding: 18px;
  }

  .card h3 {
    font-size: 18px;
  }

  .card p {
    font-size: 14px;
  }
}

.video-grid iframe {
  width: 100%;
  aspect-ratio: 16/9;
}

nav.active {
  display: flex;
}

.powered {
  margin-top: 10px;
  font-size: 14px;
  color: #94a3b8;
}

.powered a {
  color: #38bdf8;
  text-decoration: none;
}

.powered a:hover {
  text-decoration: underline;
}

.logo {
  font-weight: 700;
  letter-spacing: 1px;
}

.btn {
  background: #38bdf8;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  color: black;
  font-weight: 600;

  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

.btn:hover {
  background: #0ea5e9;
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.8);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

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

.scroll-indicator {
  margin-top: 40px;
  font-size: 22px;
  opacity: 0.6;

  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(8px);
  }
}

.lab-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: -20px;
}

.highlight {
  background: #020617;
  padding: 25px;
  border-radius: 10px;
  border: 1px solid rgba(56, 189, 248, 0.15);
  transition: all 0.35s ease;
}

.highlight h3 {
  margin-bottom: 8px;
  color: #38bdf8;
}

.tiktok-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

section {
  max-width: 1100px;
  margin: auto;
  padding: 70px 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}