* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #111827;
  background: #f5f7fa;
  line-height: 1.7;
}

.hero {
  background: linear-gradient(135deg, #071b33, #102f55);
  color: white;
  padding-bottom: 70px;
}

.top-nav {
  padding: 22px 8%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.5px;
}

.nav-links a,
.nav-links button {
  margin-left: 18px;
  color: white;
  text-decoration: none;
  font-weight: 600;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 14px;
}

.nav-links button {
  border: 1px solid rgba(255,255,255,0.35);
  padding: 5px 9px;
  border-radius: 20px;
}

.hero-content {
  padding: 55px 8% 20px;
  display: grid;
  grid-template-columns: 1.7fr 0.8fr;
  gap: 50px;
  align-items: center;
}

.eyebrow {
  color: #9fc5ff;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 14px;
}

.hero h1 {
  font-size: 64px;
  margin: 10px 0;
  line-height: 1.05;
}

.subtitle {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 14px;
}

.info-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0;
}

.info-line span {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 14px;
}

.hero-description {
  max-width: 760px;
  color: #d9e6f7;
  font-size: 17px;
}

.hero-buttons a,
.buttons a,
.small-card a,
.cert-card a {
  display: inline-block;
  margin: 12px 10px 0 0;
  padding: 12px 18px;
  background: #0b1f3a;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 700;
}

.hero-buttons a {
  background: white;
  color: #0b1f3a;
}

.hero-buttons a:first-child {
  background: #2f80ed;
  color: white;
}

.profile-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 24px;
  padding: 30px;
  text-align: center;
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
}

.profile-card img {
  width: 230px;
  height: 230px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid white;
  box-shadow: 0 12px 28px rgba(0,0,0,0.3);
}

.profile-card h3 {
  font-size: 26px;
  margin-bottom: 4px;
}

.stats {
  margin: -45px 8% 30px;
  background: white;
  border-radius: 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
  overflow: hidden;
}

.stats div {
  padding: 28px;
  text-align: center;
  border-right: 1px solid #e5e7eb;
}

.stats div:last-child {
  border-right: none;
}

.stats h3 {
  margin: 0;
  font-size: 34px;
  color: #0b1f3a;
}

.stats p {
  margin: 6px 0 0;
  color: #6b7280;
  font-weight: 600;
}

.section {
  padding: 70px 8%;
}

.dark-section {
  background: #eef3f8;
}

h2 {
  font-size: 38px;
  color: #0b1f3a;
  margin-bottom: 28px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.8fr 0.9fr;
  gap: 30px;
}

.side-box,
.research-card,
.small-card,
.cert-card {
  background: white;
  padding: 30px;
  border-radius: 18px;
  border: 1px solid #dde3ea;
  box-shadow: 0 10px 24px rgba(0,0,0,0.06);
}

.side-box h3 {
  margin-top: 0;
  color: #0b1f3a;
}

.research-grid,
.grid,
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 18px;
}

.ticker {
  background: #eef4ff;
  color: #0b1f3a;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 800;
}

.rating {
  background: #dff5e7;
  color: #137333;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 800;
}

.research-card h3 {
  font-size: 30px;
  margin: 5px 0;
}

.meta {
  color: #c0392b;
  font-weight: 800;
}

.thesis {
  margin: 22px 0;
}

.thesis span {
  display: inline-block;
  background: #f0f2f5;
  padding: 8px 11px;
  border-radius: 7px;
  margin: 4px;
  font-size: 14px;
  font-weight: 600;
}

.coming-soon {
  opacity: 0.8;
}

.contact a {
  color: #0b1f3a;
  font-weight: 700;
}

footer {
  background: #071b33;
  color: white;
  padding: 36px 8%;
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-content,
  .about-grid,
  .research-grid,
  .grid,
  .cert-grid,
  .stats {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 44px;
  }

  .top-nav {
    display: block;
  }

  .nav-links {
    margin-top: 14px;
  }

  .nav-links a,
  .nav-links button {
    display: inline-block;
    margin: 6px 8px 6px 0;
  }

  .stats {
    margin: 20px 8%;
  }
}