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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-shell);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

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

/* ── Scrollbars: finas, bajo contraste en reposo, sin flechas ──
   scrollbar-width/-color no se heredan (aplican por caja con scroll),
   así que van en `*` igual que los pseudo-elementos de WebKit/Blink. */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-subtle) transparent;
}

*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: var(--color-border-subtle);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* Sin flechas de paso (Chrome/Edge/Safari las dibujan si no se ocultan). */
*::-webkit-scrollbar-button {
  display: none;
  width: 0;
  height: 0;
}

*::-webkit-scrollbar-corner {
  background: transparent;
}