*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #fafaf8;
  --text: #1a1a1a;
  --muted: #888;
  --accent: #1a1a1a;
}

:root[data-theme="dark"] {
  --bg: #0e0e0e;
  --text: #ededeb;
  --muted: #777;
  --accent: #ededeb;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0e0e;
    --text: #ededeb;
    --muted: #777;
    --accent: #ededeb;
  }
}

body {
  transition: background 0.25s ease, color 0.25s ease;
}

.theme-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: 1px solid var(--muted);
  color: var(--muted);
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  text-transform: lowercase;
  transition: color 0.2s ease, border-color 0.2s ease;
  z-index: 10;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--text);
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

main {
  text-align: center;
  padding: 2rem;
  max-width: 600px;
}

h1 {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 300;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  letter-spacing: 0.04em;
  line-height: 1.2;
  margin-bottom: 0.6rem;
}

.tagline {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-weight: 300;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 3rem;
}

nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
}

nav a {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

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

.prompt {
  color: var(--muted);
  user-select: none;
}

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

.subtitle {
  font-size: 0.7rem;
  font-weight: 300;
  color: var(--muted);
  margin-left: 0.25rem;
}

.cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.1em;
  background: var(--muted);
  margin-left: 0.1em;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@media (max-width: 480px) {
  main {
    padding: 1.5rem;
  }

  .tagline {
    margin-bottom: 2.4rem;
  }

  nav {
    gap: 0.8rem;
  }
}