:root {
  --ink: #111111;
  --paper: #ffffff;
  --muted: #6b6b6b;
  --line: #e6e6e6;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
}

.wordmark {
  font-weight: 600;
  font-size: 1.05rem;
}

.login {
  position: relative;
}

.login-btn {
  font: inherit;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.login-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.login-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  overflow: hidden;
  min-width: 10rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.login-menu a {
  display: block;
  padding: 0.65rem 1rem;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
}

.login-menu a:hover {
  background: #f5f5f5;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.hero h1 {
  font-size: 2rem;
  margin: 0 0 1rem;
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
}

.about {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

.about h2 {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}

.about p {
  color: var(--muted);
}

.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}