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

html, body { min-height: 100vh; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
  font-size: var(--fs-base);
  line-height: 1.45;
  color: var(--text-1);
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(51, 177, 255, 0.16), transparent 60%),
    radial-gradient(800px 460px at -10% 110%, rgba(47, 212, 131, 0.1), transparent 60%),
    linear-gradient(180deg, #0b1119 0%, #070d16 100%);
  background-attachment: fixed;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

h1, h2, h3, b, strong { font-weight: 700; }
h2 { font-size: var(--fs-lg); line-height: 1.3; }
p { margin: 0; }

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

small { font-size: var(--fs-sm); }

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

::selection { background: rgba(51, 177, 255, 0.3); }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.ic {
  width: 1.15em;
  height: 1.15em;
  flex: none;
  display: inline-block;
  vertical-align: -0.18em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.ic.lg { width: 1.4em; height: 1.4em; }

.hidden { display: none !important; }
.muted { color: var(--text-2); }
.err { color: var(--danger); margin-top: var(--s-2); font-size: var(--fs-md); }

.grow { flex: 1 1 auto; min-width: 0; }
.row { display: flex; align-items: center; gap: var(--s-2); }
.col { display: flex; flex-direction: column; gap: var(--s-1); }
.col.tight { gap: 2px; }
.center { text-align: center; }
.block { width: 100%; }
.mt-1 { margin-top: var(--s-1); }
.mt-15 { margin-top: var(--s-1-5); }
.mt-2 { margin-top: var(--s-2); }
.mt-25 { margin-top: var(--s-2-5); }
.mt-3 { margin-top: var(--s-3); }
.mb-2 { margin-bottom: var(--s-2); }
.mb-25 { margin-bottom: var(--s-2-5); }
.txt-sm { font-size: var(--fs-sm); }
.txt-md { font-size: var(--fs-md); }
.pre { white-space: pre-line; }
.prew { white-space: pre-wrap; overflow-wrap: anywhere; }
.nowrap { white-space: nowrap; }