/* Tap Party styles. Big targets, strong focus rings, no flashing. */
:root {
  --bg: #fdfbf7; --fg: #1b1b1b; --muted: #4a4a4a; --accent: #14213d; --accent-fg: #fff;
  --pad: #fca311; --pad-down: #e07a00; --line: #c9c4bb; --focus: #0b57d0;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111418; --fg: #f2f2f2; --muted: #c6c6c6; --accent: #8ab4f8; --accent-fg: #111418; --pad: #f6b73c; --pad-down: #ffd27a; --line: #3b4048; --focus: #8ab4f8; }
}
* { box-sizing: border-box; }
html { font-size: 112.5%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 1rem/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
#app { max-width: 46rem; margin: 0 auto; padding: 0 1rem 4rem; }
.top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem; padding: .75rem 0; border-bottom: 1px solid var(--line); }
.nav { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .25rem 1rem; }
.nav a { color: var(--fg); font-weight: 600; text-underline-offset: .2em; display: inline-block; padding: .5rem .1rem; }
.nav a[aria-current="page"] { text-decoration-thickness: .2em; }
h1 { font-size: 2rem; line-height: 1.2; margin: 1.25rem 0 .5rem; }
h2 { font-size: 1.3rem; margin: 1.75rem 0 .5rem; }
a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
h1:focus { outline: none; }
.btn { font: inherit; font-weight: 600; min-height: 48px; padding: .5rem 1rem; border-radius: .6rem; border: 2px solid var(--fg); background: transparent; color: var(--fg); cursor: pointer; }
.btn.primary, .btn.big { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn.big { font-size: 1.2rem; padding: .8rem 1.4rem; }
.btn.small { min-height: 40px; padding: .3rem .8rem; }
.row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin: .5rem 0; }
.keys .btn { flex: 1 1 8rem; }
.pad {
  display: block; width: 100%; min-height: 42vh; margin: .5rem 0; border-radius: 1.25rem; border: 3px solid var(--fg);
  background: var(--pad); color: #1b1b1b; font: 700 1.6rem/1.2 inherit; cursor: pointer;
  touch-action: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none;
  transition: background-color .08s linear;
}
.pad.small-pad { min-height: 28vh; }
.pad.is-down { background: var(--pad-down); }
.hint { color: var(--muted); }
.join { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.join label { flex-basis: 100%; font-weight: 600; }
input[type="text"] { font: inherit; min-height: 48px; padding: .4rem .6rem; border: 2px solid var(--fg); border-radius: .5rem; background: var(--bg); color: var(--fg); flex: 1 1 14rem; }
input[type="checkbox"], input[type="radio"] { width: 1.4rem; height: 1.4rem; margin: 0 .5rem 0 0; vertical-align: middle; }
fieldset { border: 2px solid var(--line); border-radius: .6rem; margin: 1rem 0; padding: .5rem 1rem; }
fieldset div { padding: .35rem 0; }
legend { font-weight: 700; padding: 0 .3rem; }
.field label { display: block; font-weight: 600; margin-bottom: .25rem; }
.field input { width: 100%; }
.log { padding-left: 1.5rem; }
.log li { margin: .5rem 0; }
.log p { margin: 0 0 .25rem; }
.letters { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr)); gap: .5rem; }
.letters .btn { width: 100%; text-align: left; }
.braille { font-size: 1.8rem; letter-spacing: .1em; word-break: break-all; }
.error { color: #b00020; font-weight: 600; }
@media (prefers-color-scheme: dark) { .error { color: #ff8a80; } }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0; }
/* a11y-dialog */
.dialog, .dialog-overlay { position: fixed; inset: 0; }
.dialog { z-index: 10; display: flex; align-items: center; justify-content: center; }
.dialog[aria-hidden="true"] { display: none; }
.dialog-overlay { background: rgba(0, 0, 0, .6); }
.dialog-content { position: relative; z-index: 1; background: var(--bg); color: var(--fg); width: min(32rem, 94vw); max-height: 90vh; overflow: auto; padding: 1rem 1.25rem 1.25rem; border-radius: 1rem; border: 2px solid var(--fg); }
.dialog-content h2 { margin-top: .25rem; }
.dialog-content h2:focus { outline: none; }
.credits-list { padding-left: 1.25rem; }
.credits-list > li { margin-bottom: 1.25rem; }
.credits-list h3 { margin: .25rem 0; font-size: 1.1rem; }
.credits-list ul { padding-left: 1.25rem; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}