html { scroll-behavior: smooth; }
:root {
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #080b14;
  color: #f4f6fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  line-height: 1.6;
  background: radial-gradient(circle at top, rgba(64, 144, 255, 0.14), transparent 22%),
    linear-gradient(180deg, #080b14 0%, #0e1424 48%, #090b12 100%);
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(5, 10, 22, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.page-inner {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand img {
  height: 40px;
  width: auto;
}

nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

nav a {
  color: rgba(244, 246, 251, 0.85);
  transition: color 0.2s ease;
}

nav a:hover {
  color: #81a8ff;
}

.hero {
  padding: 6rem 0 3rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.7rem, 5vw, 4.6rem);
  line-height: 0.98;
}

.hero p {
  max-width: 680px;
  margin: 1.5rem 0 0;
  color: #c8d1ff;
  font-size: 1.05rem;
}

.hero .hero-meta {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

.hero .meta-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(12, 19, 34, 0.75);
  padding: 1.4rem;
  border-radius: 18px;
}

.hero .meta-card strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: #edf2ff;
}

.hero .meta-card span {
  font-size: 0.92rem;
  color: #a9b3d8;
}

.section {
  padding: 4rem 0;
  scroll-margin-top: 88px;
}

.section h1,
.section h2 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3rem);
}

.section p.lead,
.section p,
.card p {
  max-width: 760px;
  color: #b8c4e8;
}

.section-image {
  width: 100%;
  max-width: 600px;
  margin-top: 3rem;
}

.grid {
  display: grid;
  gap: 1.4rem;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: rgba(11, 17, 31, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 1.6rem;
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1rem;
}

.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: #bfc8e5;
}

.card span {
  display: block;
  margin-top: 0.75rem;
  color: #8e9fca;
  font-size: 0.92rem;
}

.publication-filter {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  max-width: 420px;
}

.publication-filter label {
  color: #d3d9f5;
  font-size: 0.95rem;
}

.publication-filter input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 15, 27, 0.95);
  color: #f4f6fb;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  font-size: 1rem;
}

.publication-filter input:focus {
  outline: 2px solid rgba(102, 153, 255, 0.5);
  outline-offset: 2px;
}

.publication-list {
  display: grid;
  gap: 1rem;
}

.publication-item {
  border-left: 3px solid #6d8dff;
  padding: 1rem 1rem 1rem 1rem;
  background: rgba(12, 18, 32, 0.75);
  border-radius: 16px;
}

.publication-item p {
  margin: 0;
  color: #dfe5ff;
}

.publication-item a {
  color: #96b6ff;
}

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(48, 89, 255, 0.16), rgba(55, 149, 255, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.cta h3 {
  margin: 0;
  font-size: 1.3rem;
}

.cta p {
  margin: 0.6rem 0 0;
  color: #c5d1f8;
}

footer {
  padding: 2rem 0 3rem;
  color: #8c9dd1;
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (max-width: 800px) {
  .nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero .hero-meta,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .cta {
    flex-direction: column;
    align-items: flex-start;
  }
}