/* Сброс и базовая типографика */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-15);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
/* Глубина фона: два мягких источника света, без движения */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60vmax 40vmax at 12% -10%, var(--ambient-a), transparent 70%),
    radial-gradient(50vmax 40vmax at 110% 110%, var(--ambient-b), transparent 70%),
    var(--bg);
}
h1, h2, h3, h4, p { margin: 0; }
h1 { font-size: var(--fs-34); line-height: var(--lh-tight); letter-spacing: var(--tracking-display); font-weight: var(--fw-bold); }
h2 { font-size: var(--fs-20); line-height: var(--lh-tight); letter-spacing: -0.012em; font-weight: var(--fw-semibold); }
h3 { font-size: var(--fs-15); font-weight: var(--fw-semibold); }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--accent); }
:focus { outline: none; }
:focus-visible { box-shadow: var(--focus-ring); border-radius: var(--r-xs); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: var(--tracking-mono); }
.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.stack { display: flex; flex-direction: column; gap: var(--row-gap); }
.row { display: flex; align-items: center; gap: var(--sp-2); }
.grow { flex: 1 1 auto; min-width: 0; }
.wrap { flex-wrap: wrap; }

@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;
  }
}