/* ui-studio kit — base layer: reset, type, focus, layout primitives.
   Load after tokens.css (generated by scripts/tokens.py). No inline styles needed:
   spacing and layout come from the utility classes below. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: var(--fs-3)/var(--lh) var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
[hidden] { display: none !important; }

h1, h2, h3, h4 { margin: 0; line-height: var(--lh-tight); font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: var(--fs-6); }
h2 { font-size: var(--fs-5); }
h3 { font-size: var(--fs-4); }
h4 { font-size: var(--fs-3); }
p { margin: 0; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--accent-hover); }
img, svg, video, canvas { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
code, pre, kbd, samp { font-family: var(--mono); font-size: 0.92em; }
hr { border: 0; border-top: 1px solid var(--border); margin: var(--s-4) 0; }
::selection { background: var(--accent-soft); color: var(--text); }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: var(--r-1);
}

@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;
  }
}

/* --- text helpers --------------------------------------------------------- */
.muted { color: var(--muted); }
.secondary { color: var(--text-2); }
.small { font-size: var(--fs-2); }
.tiny { font-size: var(--fs-1); }
.strong { font-weight: 600; }
.num { font-variant-numeric: tabular-nums; }        /* only for aligned columns */
.mono { font-family: var(--mono); }
.nowrap { white-space: nowrap; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.break { overflow-wrap: anywhere; }
.center { text-align: center; }
.right { text-align: right; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* --- layout primitives ------------------------------------------------------ */
.stack { display: flex; flex-direction: column; gap: var(--s-3); }
.row { display: flex; align-items: center; gap: var(--s-3); min-width: 0; }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2); }
.between { justify-content: space-between; }
.end { justify-content: flex-end; }
.top { align-items: flex-start; }
.grow { flex: 1 1 auto; min-width: 0; }
.spacer { flex: 1 1 auto; }
.wrap { flex-wrap: wrap; }

.grid { display: grid; gap: var(--s-3); }
.grid-2 { display: grid; gap: var(--s-3); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { display: grid; gap: var(--s-3); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-auto { display: grid; gap: var(--s-3); grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); }
.grid-auto-sm { display: grid; gap: var(--s-3); grid-template-columns: repeat(auto-fill, minmax(min(100%, 160px), 1fr)); }
.grid-auto-lg { display: grid; gap: var(--s-4); grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); }
.span-all { grid-column: 1 / -1; }

.gap-0 { gap: 0; } .gap-1 { gap: var(--s-1); } .gap-2 { gap: var(--s-2); } .gap-3 { gap: var(--s-3); }
.gap-4 { gap: var(--s-4); } .gap-5 { gap: var(--s-5); } .gap-6 { gap: var(--s-6); } .gap-7 { gap: var(--s-7); }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: var(--s-1); } .mt-2 { margin-top: var(--s-2); }
.mt-3 { margin-top: var(--s-3); } .mt-4 { margin-top: var(--s-4); } .mt-6 { margin-top: var(--s-6); }
.mb-2 { margin-bottom: var(--s-2); } .mb-4 { margin-bottom: var(--s-4); }
.p-0 { padding: 0; }

@media (max-width: 719px) {
  .grid-2, .grid-3 { grid-template-columns: minmax(0, 1fr); }
  .hide-sm { display: none !important; }
}
@media (min-width: 720px) {
  .only-sm { display: none !important; }
}