:root {
  --bg: #0d1117;
  --card: #161b22;
  --fg: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --border: #30363d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
}

.cursor-glow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
  300px circle at var(--mx, 50%) var(--my, 50%),
  rgba(88, 166, 255, 0.4),
  transparent 25%
  );

  transition: background 0.1s ease;
}


.card {
  width: 100%;
  max-width: 420px;
  text-align: center;
  padding: 2.5rem 2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  position: relative;
  z-index: 1;
}

.avatar {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border);
  margin-bottom: 1rem;
}

h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}

.bio {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
}

.link {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 0;
  transition: transform 0.12s ease;
}

.link img {
  width: 40px;
  height: 40px;
  filter: brightness(0) invert(1);
  transition: filter 0.12s ease;
}

.link:hover {
  transform: translateY(-3px);
}

.link:hover img {
  filter: brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(175deg);
}

.link:hover svg {
  fill: var(--accent-hover);
}

.footer {
  margin-top: 2rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.45rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 10;
}

.tooltip::before,
.tooltip::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
}

.tooltip::before {
  top: -12px;
  border-bottom-color: var(--border);
}

.tooltip::after {
  top: -11px;
  border-bottom-color: var(--card);
}

.link:hover .tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.bg-video {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  pointer-events: none;
}

.bg-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 17, 23, 0.5);
  z-index: 0;
  pointer-events: none;
}