:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --text: #1f2937;
  --muted: #5f6b7a;
  --accent: #1f5faa;
  --accent-dark: #17477f;
  --border: #d9e0ea;
  --soft: #edf3fb;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

header {
  background: linear-gradient(135deg, #123b63, #1f5faa);
  color: white;
  padding: 28px 20px 72px;
}

nav {
  max-width: 1120px;
  margin: 0 auto 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 800;
  letter-spacing: .02em;
}

.menu {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: .95rem;
}

.menu a {
  color: white;
  text-decoration: none;
  opacity: .9;
}

.menu a:hover {
  opacity: 1;
  text-decoration: underline;
}

.hero {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr);
  gap: 36px;
  align-items: end;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 1.05;
  margin: 0 0 20px;
  max-width: 850px;
}

.lead {
  font-size: 1.25rem;
  max-width: 760px;
  margin: 0;
  color: rgba(255,255,255,.9);
}

.hero-card {
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 22px;
  padding: 24px;
  backdrop-filter: blur(8px);
}

.hero-card p {
  margin: 0 0 10px;
  color: rgba(255,255,255,.95);
}

.hero-card p:last-child {
  margin-bottom: 0;
}

.hero-card a {
  color: #ffffff;
  font-weight: 700;
  text-decoration: underline;
}

.hero-card .small {
  color: rgba(255,255,255,.82);
}

main {
  max-width: 1120px;
  margin: -40px auto 0;
  padding: 0 20px 64px;
}

section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 34px;
  margin-bottom: 24px;
  box-shadow: 0 16px 36px rgba(31,41,55,.06);
}

h2 {
  margin: 0 0 16px;
  font-size: 2rem;
  line-height: 1.2;
  color: #17324d;
}

h3 {
  margin: 26px 0 10px;
  font-size: 1.25rem;
  color: #17324d;
}

p { margin: 0 0 14px; }

ul, ol { padding-left: 1.4rem; }
li { margin-bottom: 8px; }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--soft);
  border-radius: 18px;
  padding: 20px;
  border: 1px solid #d7e5f5;
}

.card h3 { margin-top: 0; }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.tag-list li {
  background: #eef4fb;
  border: 1px solid #d3e1f1;
  padding: 8px 12px;
  border-radius: 999px;
  margin: 0;
}

.institutes {
  columns: 2;
  column-gap: 40px;
}

.institutes p {
  break-inside: avoid;
}

.small {
  color: var(--muted);
  font-size: .95rem;
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 32px 20px 48px;
}

@media (max-width: 800px) {
  .hero, .grid {
    grid-template-columns: 1fr;
  }

  .institutes {
    columns: 1;
  }

  section {
    padding: 24px;
  }

  nav {
    margin-bottom: 40px;
  }
}