/* The page is a drawing on paper, so the page is paper: --paper is the colour
   of the picture's edges (sampled from dzwoniec.png), and the picture fades
   into it. There is no dark scheme: the paper is the design. */
@font-face {
  font-family: "Gabarito Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 400 900;
  src: url("fonts/gabarito-latin-wght-normal.woff2") format("woff2-variations");
}

:root {
  color-scheme: light;
  --paper: #fbf8f2;
  --ink: #3a382f;
  --muted: #67634f;
  --up: #3f7357;
  --down: #857f70;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: 1fr auto;
  background: var(--paper);
  color: var(--ink);
  font-family: "Gabarito Variable", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

main {
  display: grid;
  place-items: center;
  padding: 1rem;
}

figure {
  margin: 0;
  width: min(100%, 600px);
}

img {
  display: block;
  width: 100%;
  height: auto;
  /* Fades the picture's paper into the page's. */
  mask-image: radial-gradient(ellipse closest-side, #000 90%, transparent);
}

figcaption {
  max-width: 34rem;
  margin: 0.5rem auto 0;
  padding: 0 0.5rem;
  text-align: center;
}

figcaption p {
  margin: 0;
  color: var(--muted);
}

figcaption strong {
  color: var(--ink);
}

footer {
  padding: 1.25rem 1rem 1.5rem;
  text-align: center;
  font-weight: 600;
}

a {
  color: var(--ink);
  text-underline-offset: 0.2em;
}

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

/* The status dot: about the size of a capital "O". Drawn only once the script
   has set data-state. Up is a filled dot, down a ring, so the two differ by
   more than colour. */
.dot {
  display: none;
  width: 0.75em;
  height: 0.75em;
  margin-right: 0.4em;
  border-radius: 50%;
  vertical-align: baseline;
}

.dot[data-state] {
  display: inline-block;
}

.dot[data-state="up"] {
  background: var(--up);
}

.dot[data-state="down"] {
  border: 0.14em solid var(--down);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (prefers-reduced-motion: no-preference) {
  /* The bird is drawn onto the paper. */
  img {
    animation: draw-in 900ms ease-out both;
  }

  @keyframes draw-in {
    from {
      opacity: 0;
      transform: translateY(0.5rem);
    }
  }
}