/* SD — base y componentes. Carga después de tokens.css: todo valor de marca sale de un token. */

/* ——— Base ——— */
:root, [data-theme="light"] { --sd-logo-carbon: block; --sd-logo-cal: none; color-scheme: light; }
[data-theme="dark"] { --sd-logo-carbon: none; --sd-logo-cal: block; color-scheme: dark; }
[data-theme] { background-color: var(--surface); color: var(--ink-soft); }
body {
  margin: 0;
  background-color: var(--surface);
  color: var(--ink-soft);
  font-family: var(--font-sans);
  font-kerning: normal;
  font-synthesis: none; /* sin negritas ni cursivas falsas */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
::selection { background: var(--ink); color: var(--surface); }

/* ——— Tipografía ——— */
.eyebrow, .label { text-transform: uppercase; }
.display-xl, .display, .h1, .h2, .h3, .h4 { text-wrap: balance; }
.quote, .lead, .body-lg, .body, .body-sm { text-wrap: pretty; }
.numeral { font-variant-numeric: tabular-nums; }
q { quotes: "«" "»" "“" "”" "‘" "’"; }

/* ——— Flecha ——— */
.sd-arrow { display: block; flex: none; }

/* ——— Logo ——— */
.sd-logo { display: inline-block; line-height: 0; vertical-align: middle; }
.sd-logo__ink { width: 100%; height: 100%; }
.sd-logo__ink--carbon { display: var(--sd-logo-carbon, block); }
.sd-logo__ink--cal { display: var(--sd-logo-cal, none); }

/* ——— Button ——— */
.sd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  box-sizing: border-box;
  height: 48px;
  margin: 0;
  padding: 0 var(--space-6);
  border: var(--border-hairline) solid transparent;
  border-radius: var(--radius-none);
  font-family: var(--font-sans);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition:
    background-color var(--duration-fast) var(--easing-standard),
    border-color var(--duration-fast) var(--easing-standard),
    color var(--duration-fast) var(--easing-standard);
}
.sd-btn--sm { height: 40px; padding: 0 var(--space-4); }
.sd-btn__label { margin-right: -0.2em; } /* compensa el tracking final de `label` */
.sd-btn--primary { background: var(--action); border-color: var(--action); color: var(--on-action); }
.sd-btn--primary:hover { background: var(--action-hover); border-color: var(--action-hover); }
.sd-btn--secondary { background: transparent; border-color: var(--line-strong); color: var(--ink); }
.sd-btn--secondary:hover { background: var(--action); border-color: var(--action); color: var(--on-action); }
.sd-btn:focus-visible { outline: var(--border-strong) solid var(--focus); outline-offset: var(--focus-offset); }
.sd-btn:disabled,
.sd-btn[aria-disabled="true"] { background: transparent; border-color: var(--line); color: var(--ink-muted); cursor: not-allowed; }
.sd-btn--primary:disabled,
.sd-btn--primary[aria-disabled="true"] { background: var(--surface-alt); }
.sd-btn__arrow { transition: transform var(--duration-base) var(--easing-standard); }
.sd-btn:not(:disabled):hover .sd-btn__arrow { transform: translateX(var(--space-1)); }

/* ——— TextLink ——— */
.sd-link {
  color: var(--ink);
  text-decoration-line: underline;
  text-decoration-thickness: var(--border-hairline);
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.3em;
  transition: text-decoration-color var(--duration-fast) var(--easing-standard), border-color var(--duration-fast) var(--easing-standard);
}
.sd-link:hover { text-decoration-color: var(--ink); }
.sd-link:focus-visible { outline: var(--border-strong) solid var(--focus); outline-offset: var(--focus-offset); }
.sd-link--arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-hairline) solid var(--line-strong);
  text-decoration: none;
}
.sd-link--arrow:hover { border-bottom-color: var(--ink); }
.sd-link__arrow { transition: transform var(--duration-base) var(--easing-standard); }
.sd-link--arrow:hover .sd-link__arrow { transform: translateX(var(--space-1)); }

/* ——— NavBar ——— */
.sd-nav { position: relative; background: var(--surface); border-bottom: var(--border-hairline) solid var(--line); }
.sd-nav__bar {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: var(--space-12);
  height: 88px;
  max-width: var(--layout-max);
  margin: 0 auto;
  padding: 0 var(--space-12);
}
.sd-nav__brand { display: inline-flex; margin-right: auto; line-height: 0; }
.sd-nav__links ul { display: flex; gap: var(--space-8); margin: 0; padding: 0; list-style: none; }
.sd-nav__link {
  position: relative;
  display: inline-block;
  padding: var(--space-2) 0;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color var(--duration-fast) var(--easing-standard);
}
.sd-nav__link:hover, .sd-nav__link.is-active { color: var(--ink); }
.sd-nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0.2em;
  bottom: 0;
  height: var(--border-strong);
  background: var(--ink);
}
.sd-nav__toggle {
  display: none;
  margin: 0;
  padding: var(--space-2) 0;
  border: 0;
  background: none;
  color: var(--ink);
  font-family: var(--font-sans);
  cursor: pointer;
}
.sd-nav__brand:focus-visible,
.sd-nav__link:focus-visible,
.sd-nav__toggle:focus-visible,
.sd-nav__panel-link:focus-visible { outline: var(--border-strong) solid var(--focus); outline-offset: var(--focus-offset); }
.sd-nav__panel { padding: 0 var(--space-6) var(--space-8); border-top: var(--border-hairline) solid var(--line); }
.sd-nav__panel[hidden] { display: none; }
.sd-nav__panel ul { margin: 0 0 var(--space-8); padding: 0; list-style: none; }
.sd-nav__panel li { border-bottom: var(--border-hairline) solid var(--line); }
.sd-nav__panel-link { display: block; padding: var(--space-4) 0; color: var(--ink-soft); text-decoration: none; }
.sd-nav__panel-link.is-active { color: var(--ink); }
@media (max-width: 760px) {
  .sd-nav__bar { height: 72px; padding: 0 var(--space-6); }
  .sd-nav__links, .sd-nav__cta { display: none; }
  .sd-nav__toggle { display: inline-flex; }
}
@media (min-width: 761px) {
  .sd-nav__panel { display: none; }
}

/* ——— SectionHeading ——— */
.sd-heading__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0 0 var(--space-4);
  color: var(--ink-muted);
}
.sd-heading__index { color: var(--ink); font-variant-numeric: tabular-nums; }
.sd-heading__rule { width: var(--space-8); height: var(--border-hairline); background: var(--line-strong); }
.sd-heading__title { margin: 0; color: var(--ink); text-wrap: balance; }
.sd-heading__lead { margin: var(--space-6) 0 0; max-width: var(--layout-measure); color: var(--ink-soft); }
.sd-heading--display-xl .sd-heading__eyebrow,
.sd-heading--display .sd-heading__eyebrow { margin-bottom: var(--space-6); }
.sd-heading--center { text-align: center; }
.sd-heading--center .sd-heading__eyebrow { justify-content: center; }
.sd-heading--center .sd-heading__label { margin-right: -0.375em; } /* compensa el tracking final de `eyebrow` */
.sd-heading--center .sd-heading__lead { margin-left: auto; margin-right: auto; }

/* ——— ProjectCard ——— */
.sd-card { position: relative; display: flex; flex-direction: column; }
.sd-card__media { position: relative; overflow: hidden; background: var(--surface-alt); }
.sd-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--easing-standard);
}
.sd-card:hover .sd-card__media img { transform: scale(1.03); }
.sd-card__void { position: absolute; inset: 0; width: 100%; height: 100%; }
.sd-card__void path { fill: none; stroke: var(--line); stroke-width: var(--border-hairline); }
.sd-card__body { padding-top: var(--space-6); }
.sd-card__kicker { display: flex; gap: var(--space-3); margin: 0 0 var(--space-3); color: var(--ink-muted); }
.sd-card__index { color: var(--ink); font-variant-numeric: tabular-nums; }
.sd-card__title { margin: 0; color: var(--ink); }
.sd-card__link {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-thickness: var(--border-hairline);
  text-decoration-color: transparent;
  text-underline-offset: 0.2em;
  transition: text-decoration-color var(--duration-fast) var(--easing-standard);
}
.sd-card__link::after { content: ""; position: absolute; inset: 0; }
.sd-card:hover .sd-card__link { text-decoration-color: var(--ink); }
.sd-card__link:focus-visible { outline: none; }
.sd-card:has(.sd-card__link:focus-visible) { outline: var(--border-strong) solid var(--focus); outline-offset: var(--focus-offset); }
.sd-card__meta { margin: var(--space-2) 0 0; color: var(--ink-muted); }

/* ——— SpecList ——— */
.sd-specs { margin: 0; border-bottom: var(--border-hairline) solid var(--line); }
.sd-specs__row {
  display: grid;
  grid-template-columns: minmax(128px, 2fr) 3fr;
  gap: var(--space-6);
  align-items: baseline;
  padding: var(--space-4) 0;
  border-top: var(--border-hairline) solid var(--line);
}
.sd-specs__term { margin: 0; color: var(--ink-muted); }
.sd-specs__value { margin: 0; color: var(--ink); font-variant-numeric: tabular-nums; }
.sd-specs--2 { display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--space-8); border-bottom: 0; }
.sd-specs--2 .sd-specs__row:nth-last-child(-n+2) { border-bottom: var(--border-hairline) solid var(--line); }
@media (max-width: 560px) {
  .sd-specs--2 { grid-template-columns: 1fr; border-bottom: var(--border-hairline) solid var(--line); }
  .sd-specs--2 .sd-specs__row:nth-last-child(-n+2) { border-bottom: 0; }
  .sd-specs__row { grid-template-columns: 1fr; gap: var(--space-1); }
}

/* ——— Tag ——— */
.sd-tag {
  display: inline-flex;
  align-items: center;
  box-sizing: border-box;
  height: 32px;
  margin: 0;
  padding: 0 var(--space-3);
  border: var(--border-hairline) solid var(--line-strong);
  border-radius: var(--radius-none);
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--font-sans);
  text-decoration: none;
  white-space: nowrap;
}
.sd-tag--interactive {
  cursor: pointer;
  transition:
    background-color var(--duration-fast) var(--easing-standard),
    border-color var(--duration-fast) var(--easing-standard),
    color var(--duration-fast) var(--easing-standard);
}
.sd-tag--interactive:hover { border-color: var(--ink); color: var(--ink); }
.sd-tag.is-selected { background: var(--action); border-color: var(--action); color: var(--on-action); }
.sd-tag.is-selected:hover { background: var(--action-hover); border-color: var(--action-hover); color: var(--on-action); }
.sd-tag:focus-visible { outline: var(--border-strong) solid var(--focus); outline-offset: var(--focus-offset); }

/* ——— TextField ——— */
.sd-field { display: flex; flex-direction: column; gap: var(--space-1); }
.sd-field__label { color: var(--ink); }
.sd-field__req { color: var(--ink-muted); }
.sd-field__control {
  box-sizing: border-box;
  width: 100%;
  margin: 0;
  padding: var(--space-2) 0 var(--space-3);
  border: 0;
  border-bottom: var(--border-hairline) solid var(--line-strong);
  border-radius: var(--radius-none);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-appearance: none;
  appearance: none;
  transition: border-color var(--duration-fast) var(--easing-standard), box-shadow var(--duration-fast) var(--easing-standard);
}
textarea.sd-field__control { resize: vertical; min-height: 96px; }
.sd-field__control::placeholder { color: var(--ink-muted); opacity: 1; }
.sd-field__control:hover { border-bottom-color: var(--ink-soft); }
.sd-field__control:focus { outline: none; border-bottom-color: var(--focus); box-shadow: 0 var(--border-hairline) 0 0 var(--focus); }
.sd-field__control:disabled { border-bottom-style: dashed; color: var(--ink-muted); cursor: not-allowed; }
.sd-field.is-invalid .sd-field__control { border-bottom-color: var(--error); box-shadow: 0 var(--border-hairline) 0 0 var(--error); }
.sd-field__help { display: flex; align-items: center; gap: var(--space-2); margin: var(--space-1) 0 0; color: var(--ink-muted); }
.sd-field.is-invalid .sd-field__help { color: var(--error); }
.sd-field__mark { flex: none; }

/* ——— Movimiento reducido ——— */
@media (prefers-reduced-motion: reduce) {
  .sd-btn, .sd-btn__arrow, .sd-link, .sd-link__arrow, .sd-nav__link, .sd-card__media img, .sd-card__link, .sd-tag, .sd-field__control { transition: none; }
  .sd-btn:not(:disabled):hover .sd-btn__arrow,
  .sd-link--arrow:hover .sd-link__arrow,
  .sd-card:hover .sd-card__media img { transform: none; }
}