@import url('https://fonts.googleapis.com/css2?family=Urbanist:wght@400;500;600;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css');

:root {
  --bg-deep: #010602;
  --bg-dusk: #1E3A2F;
  --edge-color: #A7B0B3;
  --accent: #A08A5A;
  --muted: #c2d0c4;
  --panel: rgba(30, 58, 47, 0.9);
  --content-max-width: 845px;
  --content-mobile-width: 92vw;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Urbanist', sans-serif;
  background-color: var(--bg-dusk);
  color: #e6ffe8;
}

#vanta-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-dusk);
  z-index: -1;
  pointer-events: none;
}


.site-shell {
  position: relative;
  padding: 1.5rem 1.25rem 4rem;
}

.site-header {
  padding: 3rem 1.25rem 2rem;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--edge-color);
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  max-width: var(--content-max-width);
  margin: 0 auto 1.5rem;
  width: 100%;
}

.site-title {
  font-size: clamp(2.4rem, 4vw, 3.5rem);
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-tagline {
  color: var(--muted);
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding: 0.35rem 0.5rem;
}

.site-nav a {
  position: relative;
  padding: 0.35rem 0.75rem;
  color: #d4f7c6;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.site-nav a.active,
.site-nav a:hover {
  color: #010602;
  background-color: var(--accent);
  border-color: var(--accent);
}

.page-content {
  max-width: var(--content-max-width);
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--edge-color);
  padding: 2rem;
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.page-content h1 {
  color: #f0ffe5;
  text-align: center;
}
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5 {
  color: #f0ffe5;
}

.page-content p {
  line-height: 1.35;
  color: #e4ffe6;
}

.page-content ul,
.page-content ol {
  margin-left: 0;
  padding-left: 1rem;
}

.page-content li {
  padding-left: 0.25rem;
}

.page-content a {
  color: #dde663;
  text-decoration: none;
}

.page-content a:hover {
  text-decoration: underline;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--edge-color);
  color: var(--edge-color);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  transition: background-color 0.2s ease, color 0.2s ease;
}

  .button:hover {
  background-color: var(--edge-color);
  color: #0c1b17;
}

.abstract {
  display: none;
  margin-top: 0.75rem;
  padding: 1rem;
  background-color: rgba(255, 255, 255, 0.07);
  border-left: 3px solid var(--edge-color);
  border-radius: 4px;
}

hr {
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin: 2rem 0;
}

.site-footer {
  margin-top: 3rem;
  text-align: center;
  color: #a2d6a1;
  font-size: 0.85rem;
}

.social-links {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.social-links a {
  color: #e4ffe6;
  font-size: 1.2rem;
}

@media (max-width: 1024px) {
  .site-header,
  .page-content {
    padding-left: 1rem;
    padding-right: 1rem;
    max-width: var(--content-mobile-width);
  }
}

@media (max-width: 768px) {
  .site-header,
  .page-content {
    padding: 2rem 1rem;
    border-radius: 12px;
  }

  .site-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  .site-nav a {
    border-radius: 12px;
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: 1.8rem 0 1.5rem;
  }
  .page-content {
    padding: 1.5rem 0.75rem;
  }
}

@media (max-width: 768px) {
  .page-content {
    padding: 1.5rem;
  }

  .site-nav {
    gap: 0.5rem;
  }
}