/* The class display rules below beat the UA [hidden] rule on equal
   specificity, so hidden toggles need this to actually hide. */
[hidden] { display: none !important; }

/* The wallpaper uploader, page-scoped. Leans on styles.css for the palette,
   the type and the topbar; only what is particular to converting a picture
   lives here. Paper and ink, 3px controls, Jersey 25 and Instrument Serif,
   the same as the two bridge sign-in pages. */

.wp-main {
  max-width: 62rem;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem) var(--gutter) 5rem;
}

.wp-head {
  margin-bottom: 2rem;
}
.wp-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.02;
  margin: 0.2rem 0 0.6rem;
}
.wp-lede {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 42rem;
  margin: 0;
}

/* The two-column working area: controls and preview on wide screens, stacked
   on a phone. */
.wp-work {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
}
@media (min-width: 820px) {
  .wp-work {
    grid-template-columns: 1fr auto;
  }
}

.wp-drop {
  border: 3px solid var(--ink);
  background: var(--paper-2);
  border-radius: 4px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: background 0.12s ease;
}
.wp-drop:hover,
.wp-drop:focus-visible {
  background: var(--paper);
  outline: none;
}
.wp-drop.is-over {
  background: var(--ink);
  color: var(--paper);
}
.wp-drop-big {
  font-family: var(--display);
  font-size: 1.6rem;
  letter-spacing: 0.02em;
  margin: 0 0 0.4rem;
}
.wp-drop-small {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0;
}
.wp-drop.is-over .wp-drop-small {
  color: var(--paper);
}

.wp-controls {
  margin-top: 1.5rem;
  display: grid;
  gap: 1.1rem;
}
.wp-ctl-title {
  font-family: var(--display);
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
}
.wp-seg {
  display: inline-flex;
  border: 3px solid var(--ink);
  border-radius: 4px;
  overflow: hidden;
}
.wp-seg button {
  appearance: none;
  border: 0;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
}
.wp-seg button + button {
  border-left: 3px solid var(--ink);
}
.wp-seg button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

.wp-check {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.98rem;
  cursor: pointer;
}
.wp-check input {
  width: 1.15rem;
  height: 1.15rem;
}

.wp-actions {
  margin-top: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.wp-btn {
  appearance: none;
  font: inherit;
  font-family: var(--display);
  letter-spacing: 0.03em;
  font-size: 1.05rem;
  padding: 0.7rem 1.4rem;
  border: 3px solid var(--ink);
  border-radius: 4px;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
}
.wp-btn.is-secondary {
  background: var(--paper);
  color: var(--ink);
}
.wp-btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}

/* The preview: the actual 1-bit result the device will show, drawn at the
   panel's own pixels and scaled down to fit. A checkered mat around it so a
   white wallpaper still reads as an image and not as empty space. */
.wp-preview {
  justify-self: center;
}
.wp-frame {
  border: 3px solid var(--ink);
  border-radius: 6px;
  background: var(--paper-2);
  padding: 0.9rem;
  display: inline-block;
  line-height: 0;
}
.wp-canvas {
  width: 210px;
  height: 350px;
  image-rendering: pixelated;
  background: #fff;
  display: block;
}
.wp-canvas.is-empty {
  display: flex;
}
.wp-preview-cap {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0.6rem 0 0;
}
.wp-empty-note {
  width: 210px;
  height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
  padding: 1rem;
  box-sizing: border-box;
}

.wp-error {
  color: #a11;
  font-weight: 600;
  margin: 1rem 0 0;
}
/* THE DARK COLOUR IS INSIDE THE MEDIA QUERY, and it has to be.
   `:root:not([data-theme="light"])` is not a dark-mode selector: it matches on
   a light system too, because the attribute is absent by default. Unguarded,
   every refusal on this page was drawn in the dark paper's hot pink on cream,
   which reads as a decoration rather than as something that went wrong. The
   shape is styles.css's own for tokens: the media query for the system, the
   explicit attribute for the toggle. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .wp-error {
    color: #f2a; /* readable on the dark paper */
  }
}
:root[data-theme="dark"] .wp-error {
  color: #f2a;
}

/* The transfer steps: how the BMP gets from this page onto the card. A numbered
   rail, the same shape the bridge pages use for anything with stages. */
.wp-steps {
  margin-top: 3rem;
  border-top: 3px solid var(--ink);
  padding-top: 1.75rem;
}
.wp-steps h2 {
  font-family: var(--display);
  letter-spacing: 0.03em;
  font-size: 1.3rem;
  margin: 0 0 1rem;
}
/* The shorter route, said before the numbered one rather than after it: the
   device converts a phone photo over its own QR, so the steps below are for
   making a wallpaper on a computer, not the only way in. */
.wp-note {
  max-width: 58ch;
  margin: 0 0 1.5rem;
  color: var(--muted);
  line-height: 1.55;
}
.wp-rail {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.wp-rail li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.9rem;
  align-items: start;
}
.wp-rail li::before {
  content: counter(step);
  font-family: var(--display);
  font-size: 1.1rem;
  width: 2.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  border: 3px solid var(--ink);
  border-radius: 50%;
}
.wp-rail p {
  margin: 0;
  padding-top: 0.2rem;
}
.wp-rail code {
  font-family: var(--mono);
  background: var(--paper-2);
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
}