/* ============================================================
   Base — reset, typography, primitives
   ============================================================ */

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

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text);
  background: var(--bg-app);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, figure { margin: 0; }

h1 { font-size: var(--fs-2xl); font-weight: var(--fw-bold); line-height: var(--lh-tight); }
h2 { font-size: var(--fs-xl); font-weight: var(--fw-semibold); line-height: var(--lh-tight); }
h3 { font-size: var(--fs-lg); font-weight: var(--fw-semibold); }

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

button { font-family: inherit; }

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

/* Tabular numbers everywhere numbers matter */
.mono, .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* Utilities */
.hidden { display: none !important; }
.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;
}
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.nowrap { white-space: nowrap; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.stack { display: flex; flex-direction: column; }
.row { display: flex; align-items: center; }
.gap-1 { gap: var(--sp-1); } .gap-2 { gap: var(--sp-2); } .gap-3 { gap: var(--sp-3); }
.gap-4 { gap: var(--sp-4); } .gap-6 { gap: var(--sp-6); }
.grow { flex: 1 1 auto; }
.wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.mt-2 { margin-top: var(--sp-2); } .mt-4 { margin-top: var(--sp-4); } .mt-6 { margin-top: var(--sp-6); }

/* Scrollbar (subtle, enterprise) */
* { scrollbar-width: thin; scrollbar-color: #C6CACE transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: #C6CACE; border-radius: 999px; border: 2px solid transparent; background-clip: content-box; }
*::-webkit-scrollbar-thumb:hover { background: #A8ADB2; background-clip: content-box; }

:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 3px; }