:root {
  --bg: #fafaf9;
  --text: #2b2b2b;
  --muted: #8a8a8a;
  --transition: 0.2s ease;
}

:root[data-theme="dark"] {
  --bg: #1c1c1c;
  --text: #f2f2f2;
  --muted: #9a9a9a;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-weight: 400;
  transition: background-color var(--transition), color var(--transition);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.theme-toggle {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: 1px solid var(--muted);
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  font-size: 1rem;
  opacity: 0.7;
  transition: opacity var(--transition), border-color var(--transition), color var(--transition);
}

.theme-toggle:hover {
  opacity: 1;
}

.page {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding: 2rem;
  text-align: center;
}

.portrait-link {
  display: inline-block;
  border-radius: 50%;
  transition: transform var(--transition), opacity var(--transition);
}

.portrait-link:hover {
  transform: scale(1.03);
  opacity: 0.9;
}

.portrait {
  display: block;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
}

.name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--text);
}

.footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.75rem;
  color: var(--muted);
}

@media (max-width: 480px) {
  .portrait {
    width: 140px;
    height: 140px;
  }

  .name {
    font-size: 0.95rem;
  }
}