/* ansatz / chrome
 *
 * the structural shell: header, main content, and the celestial bracket
 * marks that frame the whole viewport. the look is "engraved on the
 * inside of a brass case": thin warm hairlines, generous whitespace,
 * tracked small caps for ui labels.
 */

.page {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  z-index: var(--z-content);
}

/* -- header -- */

.chrome-header {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: var(--s-4) var(--s-8);
}

.chrome-nav {
  display: flex;
  gap: var(--s-8);
}

.chrome-nav-link {
  font-family: var(--sans);
  font-size: var(--t-tiny);
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-dim);
  border: none;
  padding-block: var(--s-1);
  position: relative;
}

.chrome-nav-link::after {
  content: '';
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--t-soft) var(--ease-mech);
}

.chrome-nav-link:hover,
.chrome-nav-link:focus-visible {
  color: var(--accent);
  text-shadow: 0 0 14px var(--bronze-glow);
}

.chrome-nav-link:hover::after,
.chrome-nav-link:focus-visible::after {
  transform: scaleX(1);
}

.chrome-still {
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-family: var(--sans);
  font-size: var(--t-tiny);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.chrome-still[aria-pressed='true'] {
  color: var(--accent);
}

/* -- main -- */

.page-main {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  padding: var(--s-8);
  min-height: 0;
}

/* -- celestial bracket marks -- */

.chrome-brackets {
  position: fixed;
  inset: var(--s-2);
  pointer-events: none;
  z-index: var(--z-chrome);
}

.chrome-bracket {
  position: absolute;
  width: var(--s-6);
  height: var(--s-6);
  border-color: var(--bronze-faint);
  border-style: solid;
  border-width: 0;
}

.chrome-bracket-tl {
  top: 0; left: 0;
  border-top-width: 1px;
  border-left-width: 1px;
}
.chrome-bracket-tr {
  top: 0; right: 0;
  border-top-width: 1px;
  border-right-width: 1px;
}
.chrome-bracket-bl {
  bottom: 0; left: 0;
  border-bottom-width: 1px;
  border-left-width: 1px;
}
.chrome-bracket-br {
  bottom: 0; right: 0;
  border-bottom-width: 1px;
  border-right-width: 1px;
}

/* -- responsive -- */

@media (max-width: 640px) {
  .chrome-header {
    padding-inline: var(--s-4);
  }

  .chrome-nav {
    gap: var(--s-4);
  }
}