:root {
  --accent: #8b5cf6; /* violet */
  --accent-2: #06b6d4; /* cyan */
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.12);
  --text-glow: 0 0 0.5rem rgba(139, 92, 246, 0.6), 0 0 1rem rgba(6, 182, 212, 0.4);
}

/* Accent links and buttons */
a, .button {
  color: var(--accent);
}

a:hover, .button:hover {
  color: var(--accent-2);
}

/* Focus visibility */
:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  box-shadow: var(--text-glow);
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.project-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
  -webkit-backdrop-filter: saturate(160%) blur(6px);
  backdrop-filter: saturate(160%) blur(6px);
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.25), var(--text-glow);
  border-color: rgba(139, 92, 246, 0.45);
}

@media (prefers-reduced-motion: reduce) {
  .project-card { transition: none; }
  .project-card:hover { transform: none; }
}

.project-hero {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

.project-content {
  padding: 0.85rem 1rem 1rem;
}

.project-title {
  margin: 0 0 0.25rem 0;
}

.project-summary {
  margin: 0 0 0.5rem 0;
  opacity: 0.9;
}

.project-meta {
  font-size: 0.9em;
  opacity: 0.8;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Subtle background gradient overlay to add a futuristic feel */
#bg::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(1200px 600px at 10% 20%, rgba(139, 92, 246, 0.18), transparent 60%),
              radial-gradient(900px 600px at 90% 80%, rgba(6, 182, 212, 0.18), transparent 60%);
}

/* Page content card style */
.page-article {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 1.25rem;
}

/* Theme toggle placeholder (can be wired later) */
.theme-toggle {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 10;
}

/* About page image fix */
.about-image {
  width: 100%;       /* scale with container */
  height: auto;      /* maintain aspect ratio */
  object-fit: contain;
  display: block;
  max-width: 600px;  /* optional: limit image size */
  margin: 0 auto;    /* optional: center horizontally */
}

/* Only apply to Research page */
#research .research-gif {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  max-width: 600px;
  margin: 0 auto;
}