:root {
  color-scheme: light;
  --bg: #e6ebe8;
  --text: #2a2a2a;
  --muted: #6b6b6b;
  --card: #ffffff;
  --card-border: #cfd6d2;
  --accent: #3157c8;
  --select: #f2b705;
  --good: #0b9447;
  --bad: #d6283a;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

h1 { margin: 0 0 12px; font-size: 1.6rem; letter-spacing: 0.02em; }
h2 { margin: 0 0 8px; }

button {
  font: inherit;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button.secondary { background: #fff; color: var(--accent); }
button.secondary.active { background: var(--accent); color: #fff; }
button.link { background: none; border: none; padding: 0; color: var(--muted); text-decoration: underline; }
button:disabled { opacity: 0.5; cursor: default; }

input {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  min-width: 0;
}

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

#name-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
#name-form label { width: 100%; font-weight: 600; }
#name-input { flex: 1 1 180px; }

#invite { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 4px; }
#invite span { width: 100%; }
#invite-link { flex: 1 1 200px; }
#connection { margin: 4px 0 8px; font-size: 0.9rem; }

#players {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
#players li {
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 4px 12px;
  display: flex;
  gap: 6px;
  align-items: center;
}
#players li.offline { opacity: 0.5; }
#players li.me { border-color: var(--accent); }
#players .score { font-weight: 700; }
#players .wants-row { font-size: 0.8rem; color: var(--accent); }

#message { min-height: 1.4em; margin: 0 0 8px; font-weight: 600; }
#message.bad { color: var(--bad); }
#message.good { color: var(--good); }

#board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

/* On wider screens, lay the cards out like a table: three rows, with
   extra cards making the rows longer. */
@media (min-width: 720px) {
  #board { grid-template-columns: repeat(var(--cols, 4), minmax(0, 190px)); }
}

.card {
  background: var(--card);
  border: 2px solid var(--card-border);
  border-radius: 10px;
  padding: 0;
  aspect-ratio: 7 / 5;
  display: block;
  width: 100%;
  cursor: pointer;
  transition: transform 0.08s, border-color 0.08s;
}
.card svg { width: 100%; height: 100%; display: block; }
.card .corner { font: 700 17px system-ui, sans-serif; fill: #555; }
.card:hover { border-color: #9fb0a8; }
.card.selected { border-color: var(--select); box-shadow: 0 0 0 3px var(--select); transform: translateY(-2px); }
.card.fresh { animation: fresh 1.2s ease-out; }
.card.wrong { animation: shake 0.35s; }

@keyframes fresh {
  from { box-shadow: 0 0 0 4px var(--good); }
  to { box-shadow: 0 0 0 0 transparent; }
}
@keyframes shake {
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

#settings { display: grid; gap: 6px; max-width: 420px; margin-bottom: 8px; }
#settings label { font-weight: 600; }
#settings label.check { font-weight: 400; display: flex; gap: 8px; align-items: center; margin-top: 6px; }
#settings select { font: inherit; padding: 6px 8px; border-radius: 8px; border: 1px solid var(--card-border); background: #fff; }

.card { position: relative; }
.card.hinted { border-color: var(--accent); border-style: dashed; }
.card.hinted::after {
  content: "hint";
  position: absolute;
  top: 6px;
  right: 8px;
  font: 700 0.7rem system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

#controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin: 14px 0 8px;
}

#game-over {
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 16px;
  margin: 12px 0;
  text-align: center;
}