/* ============================================================
   BASE — element defaults. Everything visual comes from tokens.css.
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  /* The wall screen has no keyboard and no scrollbar; hiding the
     overscroll bounce keeps it from looking broken when someone
     drags it. */
  overscroll-behavior: none;
}

body {
  margin: 0;
  background: var(--bg-app);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-synthesis: none;
}

h1, h2, h3 {
  margin: 0;
  color: var(--text-strong);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
}
h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }

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

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: var(--radius-sm);
}

/* Times, dates and apartment numbers are compared down a column, so
   the digits have to line up. */
.tnum { font-variant-numeric: tabular-nums; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link — the calendar is a long list, and a keyboard user should
   not have to tab through a week to reach the resource switcher. */
.skip-link {
  position: absolute;
  left: var(--space-3);
  top: calc(-1 * var(--space-7));
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: var(--space-3); }

@keyframes ssb-shimmer { to { background-position: -200% 0; } }
@keyframes ssb-spin    { to { transform: rotate(360deg); } }
@keyframes ssb-rise    { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

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