*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --color-bg: #0a0a0a;
  --color-surface: #141414;
  --color-text: #e0e0e0;
  --color-text-muted: #888;
  --color-accent: #00d4aa;
  --color-accent-dim: #00a080;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-text);
}

header {
  margin-bottom: 3rem;
}

h1 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 400;
  margin: 0 0 0.5rem;
  color: var(--color-accent);
}

.tagline {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0;
}

.about {
  margin-bottom: 3rem;
}

.about p {
  margin: 0;
}

h2 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.experiment-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.experiment-list li {
  background: var(--color-surface);
  border: 1px solid #222;
  border-radius: 4px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.experiment-list li:last-child {
  margin-bottom: 0;
}

.experiment-list .placeholder {
  border-style: dashed;
}

.experiment-list .status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.experiment-list p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.experiment-link {
  display: block;
  color: inherit;
}

.experiment-link:hover {
  color: inherit;
}

.experiment-list li:hover {
  border-color: var(--color-accent-dim);
}

.experiment-list h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  margin: 0 0 0.5rem;
  color: var(--color-accent);
}

footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #222;
}

footer nav {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

footer nav a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

footer nav a:hover {
  color: var(--color-accent);
}

.copyright {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0;
}

@media (max-width: 480px) {
  main {
    padding: 2rem 1rem;
  }

  h1 {
    font-size: 1.25rem;
  }

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