:root {
  --bg: #fff8e7;
  --panel: #ffffff;
  --text: #1f2933;
  --muted: #52606d;
  --accent: #2b6cb0;
  --accent-dark: #1e4e8c;
  --focus: #d97706;
  --ok: #2f855a;
  --bad: #c53030;
  --back-1: #3b82f6;
  --back-2: #60a5fa;
  --owner-0: #2b6cb0;
  --owner-1: #b45309;
  --owner-2: #276749;
  --owner-3: #6b46c1;
  --radius: 16px;
  font-size: 18px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.45;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  font-weight: bold;
}
.conn { font-size: 0.8rem; font-weight: normal; opacity: 0.95; }
.conn::before { content: "● "; }
.conn[data-state="open"]::before { color: #9ae6b4; }
.conn[data-state="reconnecting"]::before, .conn[data-state="connecting"]::before { color: #fbd38d; }
.conn[data-state="closed"]::before { color: #feb2b2; }
.conn[data-state="idle"] { display: none; }

main { max-width: 1100px; margin: 0 auto; padding: 12px 16px 24px; }

h1 { font-size: 1.7rem; margin: 0.3em 0 0.4em; }
h2 { font-size: 1.25rem; margin: 0 0 0.5em; }
h1:focus, h2:focus { outline: none; }
h1:focus-visible, h2:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }

.card-box {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 16px;
  margin: 0 0 16px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.field { display: flex; flex-direction: column; gap: 4px; margin: 0 0 16px; }
label { font-weight: bold; }
input[type="text"] {
  font: inherit;
  padding: 12px;
  border: 2px solid #9aa5b1;
  border-radius: 10px;
  width: 100%;
  max-width: 32rem;
  background: #fff;
  color: var(--text);
}
input[type="range"] { width: 100%; max-width: 20rem; min-height: 44px; }

fieldset { border: 2px solid #d9e2ec; border-radius: 12px; margin: 0 0 16px; padding: 8px 12px 12px; }
legend { font-weight: bold; padding: 0 6px; }
.radio { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.radio input { width: 24px; height: 24px; margin: 0; flex: none; }
.radio label { font-weight: normal; }

button {
  font: inherit;
  font-weight: bold;
  min-height: 48px;
  padding: 10px 18px;
  border-radius: 12px;
  border: 0;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  touch-action: manipulation;
}
button:active { background: var(--accent-dark); transform: translateY(1px); }
button.big { font-size: 1.2rem; padding: 14px 28px; min-width: 12rem; }
.buttons { display: flex; flex-wrap: wrap; gap: 10px; }

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

.error { color: var(--bad); font-weight: bold; min-height: 0; }
.error:empty { display: none; }

.players { list-style: none; padding: 0; margin: 0; }
.players li { padding: 8px 0; border-bottom: 1px solid #e4e7eb; }
.players li:last-child { border-bottom: 0; }
.players li::before { content: "● "; }
.players li.online::before { color: var(--ok); }
.players li.offline::before { color: #9aa5b1; }
.players li.offline { color: var(--muted); }

summary { font-weight: bold; min-height: 44px; display: flex; align-items: center; cursor: pointer; }

/* ---------- Hra ---------- */

.game-title { font-size: 1.3rem; margin: 0.1em 0 0.2em; }
.game-status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  margin: 0 0 10px;
  font-size: 1.05rem;
}
.status-turn { font-weight: bold; padding: 4px 12px; border-radius: 999px; background: #e4e7eb; }
.status-turn.is-me { background: #fbd38d; animation: glow 1.6s ease-in-out infinite alternate; }
.status-score { font-weight: bold; }
.status-score.owner-0 { color: var(--owner-0); }
.status-score.owner-1 { color: var(--owner-1); }
.status-score.owner-2 { color: var(--owner-2); }
.status-score.owner-3 { color: var(--owner-3); }

.board { border-radius: var(--radius); padding: 4px; }
.board[role="application"]:focus { outline: none; }
.board[role="application"]:focus-visible { outline: 3px dashed var(--focus); outline-offset: 2px; }
body[data-mode="zvuk"] .board[role="application"] {
  min-height: 6rem;
  border: 3px dashed #9aa5b1;
}

.pexeso-grid {
  --card-w: 90px;
  display: grid;
  gap: 8px;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.card {
  width: var(--card-w);
  height: calc(var(--card-w) * 1.25);
  perspective: 800px;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.35s ease;
  transform-style: preserve-3d;
}
.card.is-up .card-inner { transform: rotateY(180deg); }
.card-face {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.18);
}
.card-back {
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.35) 0 18%, transparent 19%),
    repeating-linear-gradient(45deg, var(--back-1) 0 12px, var(--back-2) 12px 24px);
  border: 4px solid #fff;
}
.card-front {
  background: var(--animal-bg, #fff);
  border: 4px solid #e4e7eb;
  transform: rotateY(180deg);
  padding: 6%;
}
.card-front img { width: 88%; height: auto; max-height: 76%; object-fit: contain; }
.card-name {
  font-weight: bold;
  font-size: clamp(0.65rem, calc(var(--card-w) * 0.15), 1.2rem);
  line-height: 1.1;
  margin-top: 4%;
  text-align: center;
}
/* Safari při 3D otočení nespolehlivě skrývá rub, proto strany přepínáme i viditelností v půlce otočky. */
.card-front, .card-back { transition: visibility 0s linear 0.17s; }
.card:not(.is-up) .card-front { visibility: hidden; }
.card.is-up .card-back { visibility: hidden; }

.card.is-matched .card-front { border-color: var(--owner-0); border-width: 5px; }
.card.is-matched[data-owner="1"] .card-front { border-color: var(--owner-1); }
.card.is-matched[data-owner="2"] .card-front { border-color: var(--owner-2); }
.card.is-matched[data-owner="3"] .card-front { border-color: var(--owner-3); }
.card.is-cursor .card-face { outline: 4px solid var(--focus); outline-offset: 2px; }


.card.pop .card-inner { animation: pop 0.5s ease; }
.card.wiggle { animation: wiggle 0.4s ease; }

@keyframes pop {
  0% { transform: rotateY(180deg) scale(1); }
  50% { transform: rotateY(180deg) scale(1.12); }
  100% { transform: rotateY(180deg) scale(1); }
}
@keyframes wiggle {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}
@keyframes glow {
  from { box-shadow: 0 0 0 0 rgba(217, 119, 6, 0.0); }
  to { box-shadow: 0 0 0 6px rgba(217, 119, 6, 0.35); }
}

@media (prefers-reduced-motion: reduce) {
  .card-inner, .card-front, .card-back { transition: none; }
  .card.pop .card-inner, .card.wiggle, .status-turn.is-me { animation: none; }
}

/* Na úzkém displeji šetříme místem nad mřížkou. */
@media (max-width: 600px) {
  :root { font-size: 17px; }
  main { padding: 8px 10px 16px; }
  .game-title {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; margin: 0;
  }
}

/* Telefon na šířku: málo výšky, schováme nadpis a zmenšíme lištu. */
@media (max-height: 500px) {
  .topbar { padding: 2px 16px; font-size: 0.85rem; }
  main { padding-top: 4px; }
  .game-status { margin-bottom: 4px; font-size: 0.95rem; }
  .game-title {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; margin: 0;
  }
}

/* Posluchačská stránka */
.sfx-variants { list-style: none; padding: 0; margin: 0 0 8px; display: grid; gap: 8px; }
button.pick[aria-pressed="true"] { background: var(--ok); box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--ok); }

/* ---------- UNO ---------- */

.uno-table { display: flex; flex-direction: column; gap: 12px; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; position: relative; }
.uno-table [data-id], .uno-table [data-action], .uno-table [data-color] { cursor: pointer; touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
.uno-table svg { display: block; width: 100%; height: auto; }

.uno-opponents { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.uno-opp { background: var(--panel); border-radius: 12px; padding: 6px 10px; border: 3px solid transparent; }
.uno-opp.is-turn { border-color: var(--focus); }
.uno-opp-name { font-weight: bold; text-align: center; }
.uno-fan { display: flex; justify-content: center; padding-left: 14px; }
.uno-mini { width: 26px; margin-left: -14px; }

.uno-center { display: flex; justify-content: center; align-items: flex-start; gap: clamp(16px, 6vw, 48px); }
.uno-upper { display: flex; flex-direction: column; gap: 12px; }
.uno-pile, .uno-top { width: clamp(64px, min(24vw, 22vh), 130px); }
.uno-pile { position: relative; }
.uno-pile-label {
  position: absolute; left: 50%; bottom: 8%; transform: translateX(-50%);
  background: #fff; color: var(--text); font-weight: bold; border-radius: 999px; padding: 2px 10px; white-space: nowrap; font-size: 0.9rem;
}
.uno-top-wrap { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.uno-top.pop { animation: uno-pop 0.35s ease; }
.uno-color-chip, .uno-color-tile { font-weight: bold; border-radius: 999px; padding: 4px 12px; color: #fff; }
.color-r { background: #c62828; }
.color-y { background: #f9c80e; color: #1f2933; }
.color-g { background: #1b7a32; }
.color-b { background: #1565c0; }

.uno-hint { min-height: 1.5em; text-align: center; font-weight: bold; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; align-items: center; }
.uno-button { background: var(--accent); color: #fff; border-radius: 12px; padding: 10px 18px; min-height: 48px; display: inline-flex; align-items: center; font-weight: bold; }

.uno-hand { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; padding-top: 14px; }
.uno-card { width: clamp(50px, min(17vw, 16vh), 100px); transition: transform 0.15s ease; }
.uno-table.my-turn .uno-card.is-playable { transform: translateY(-12px); filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.35)); }
.uno-card.is-drawn { outline: 4px solid var(--focus); outline-offset: 2px; border-radius: 12px; }
.uno-card.is-cursor, .uno-color-tile.is-cursor { outline: 4px dashed var(--focus); outline-offset: 3px; border-radius: 12px; }
.uno-card.wiggle, .uno-pile.wiggle { animation: wiggle 0.4s ease; }

.uno-picker {
  position: absolute; inset: 0; background: rgba(255, 248, 231, 0.96); border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 16px;
}
.uno-picker-title { font-size: 1.4rem; font-weight: bold; }
.uno-picker-grid { display: grid; grid-template-columns: repeat(2, minmax(120px, 1fr)); gap: 12px; width: min(100%, 420px); }
.uno-color-tile { border-radius: 16px; min-height: 80px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }

/* Telefon na šířku: soupeři, stůl a nápověda v jedné řadě, malé karty soupeře schované. */
@media (max-height: 500px) and (orientation: landscape) {
  .uno-upper { flex-direction: row; align-items: center; justify-content: center; gap: 16px; }
  .uno-fan { display: none; }
  .uno-pile, .uno-top { width: clamp(56px, 18vh, 100px); }
  .uno-card { width: clamp(46px, 17vh, 80px); }
  .uno-hand { padding-top: 10px; }
  .uno-hint { max-width: 14rem; }
}

@keyframes uno-pop { 0% { transform: scale(0.85); } 60% { transform: scale(1.08); } 100% { transform: scale(1); } }
@media (prefers-reduced-motion: reduce) {
  .uno-card { transition: none; }
  .uno-top.pop, .uno-card.wiggle, .uno-pile.wiggle { animation: none; }
}