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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: var(--fs-15);
  line-height: var(--lh-normal);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: var(--lh-tight);
}

h1 { font-size: var(--fs-28); letter-spacing: -0.02em; }
h2 { font-size: var(--fs-22); }
h3 { font-size: var(--fs-18); }
h4 { font-size: var(--fs-16); }

p {
  margin: 0;
  color: var(--text);
}

small,
.text-muted {
  color: var(--text-muted);
}

.text-faint { color: var(--text-faint); }
.text-strong { color: var(--text-strong); }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--motion-fast) var(--ease-standard),
              border-color var(--motion-fast) var(--ease-standard);
}

a:hover {
  color: var(--accent-strong);
  border-bottom-color: currentColor;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

::selection {
  background: var(--accent-soft);
  color: var(--text-strong);
}

img, svg, video, canvas {
  max-width: 100%;
  display: block;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: var(--space-6) 0;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}