@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&display=swap');

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

:root {
  --bg:     #f7f5f2;
  --fg:     #1a1a18;
  --muted:  rgba(26, 26, 24, 0.65);
  --accent: #1a1a18;
  --accent-hover: #3a3a38;
  --nav-h:  48px;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--fg);
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  animation: page-in 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 2.5rem;
  gap: 2rem;
  justify-content: flex-end;
  background: var(--bg);
  z-index: 100;
}

#navbar a {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.15s;
}

#navbar a:hover { color: var(--fg); opacity: 1; }
#navbar a.active { color: var(--fg); font-weight: 600; pointer-events: none; }

@media (prefers-color-scheme: dark) {
  :root {
    --bg:           #111;
    --fg:           #f0f0f0;
    --muted:        rgba(240, 240, 240, 0.6);
    --accent:       #f0f0f0;
    --accent-hover: #d0d0d0;
  }
}

@keyframes page-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

h1 {
  font-size: clamp(1.75rem, 6vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  #navbar { padding: 0 1.25rem; }
}

p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--muted);
}

a {
  color: var(--fg);
  text-underline-offset: 3px;
  transition: opacity 0.15s;
}

a:hover { opacity: 0.6; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}