/* base — reset + html/body/typography. ≤ 100 LOC. */

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

html, body {
  margin: 0; padding: 0;
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  font-family: var(--font-ui);
  font-size: var(--font-size-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--motion-fast) var(--ease-standard);
}
a:hover { color: var(--color-accent-cool); text-decoration: underline; text-underline-offset: 3px; }

p { margin: 0 0 var(--space-3); }

h1, h2, h3, h4 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}
h1 { font-size: var(--font-size-display); line-height: 1.05; }
h2 { font-size: var(--font-size-xl); line-height: 1.15; }
h3 { font-size: var(--font-size-lg); line-height: 1.25; }
h4 { font-size: var(--font-size-md); line-height: 1.3; }

code, pre, kbd, samp { font-family: var(--font-mono); font-size: 0.92em; }

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

/* Skip-link for keyboard users. */
.iblis-skip {
  position: absolute; top: -100px; left: 0;
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-3);
  z-index: 100;
}
.iblis-skip:focus { top: 0; }

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

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}