:root {
  color-scheme: dark;
  --bg: #101113;
  --panel: #1b1e22;
  --panel-strong: #24282e;
  --text: #f3f0e8;
  --muted: #b8b0a3;
  --line: #383d44;
  --accent: #2fbf71;
  --purple: #4b2594;
  --blue: #2876f0;
  --pink: #d83fb5;
  --danger: #ff4d4d;
  --warning: #f4b942;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(rgba(16, 17, 19, 0.38), rgba(16, 17, 19, 0.74)),
    radial-gradient(circle at 18% 18%, rgba(216, 63, 181, 0.42), transparent 18rem),
    radial-gradient(circle at 84% 28%, rgba(40, 118, 240, 0.34), transparent 22rem),
    linear-gradient(135deg, #20123e 0%, #5e3f82 48%, #17191f 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
textarea {
  font: inherit;
  min-width: 0;
}

button {
  min-height: 2.75rem;
  border: 0;
  border-radius: 8px;
  padding: 0 1rem;
  background: var(--accent);
  color: #08120c;
  font-weight: 800;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button:not(:disabled):hover {
  filter: brightness(1.08);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem 0.95rem;
  background: #111317;
  color: var(--text);
}

textarea {
  resize: vertical;
}

textarea.readonly {
  color: var(--muted);
  opacity: 0.82;
}

label {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(3rem, 11vw, 7rem);
  line-height: 0.9;
}

h2 {
  font-size: 1rem;
}

.shell {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  min-height: 22vh;
  padding-bottom: 1.5rem;
}

.game-screen {
  display: grid;
  gap: 1rem;
}

.join-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  border: 4px solid #111;
  border-radius: 8px;
  padding: 1rem;
  background: #f7f4ee;
  color: #24242a;
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.32);
}

.join-board p {
  color: #4c4655;
  font-weight: 900;
  text-transform: uppercase;
}

.join-board strong {
  display: block;
  margin-top: 0.2rem;
  font-size: clamp(3rem, 12vw, 7rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.join-board strong.active {
  color: var(--purple);
}

.join-board button {
  min-width: 5rem;
  background: #111;
  color: #fff;
}

.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.mode-card {
  display: grid;
  min-height: 10rem;
  place-items: center;
  gap: 0.35rem;
  border: 4px solid rgba(255, 255, 255, 0.88);
  box-shadow: 0 18px 0 rgba(0, 0, 0, 0.26);
  color: white;
}

.mode-card:first-child {
  background: var(--purple);
}

.mode-card:last-child {
  background: var(--blue);
}

.mode-card span {
  font-size: clamp(2rem, 7vw, 4.8rem);
  font-weight: 950;
}

.mode-card strong {
  font-size: 1rem;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 0.75rem;
  color: var(--warning);
  font-size: 0.85rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.connection {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.65rem 0.9rem;
  background: rgba(27, 30, 34, 0.9);
  color: var(--muted);
  font-weight: 800;
}

.panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  background: rgba(27, 30, 34, 0.92);
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.24);
}

.setup-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.wide {
  grid-column: 1 / -1;
}

.room-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.room-hint {
  color: var(--muted);
  font-size: 0.92rem;
}

.status-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 1rem;
  margin-top: 1rem;
}

.list,
.log {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.stats {
  display: grid;
  gap: 0.8rem;
  margin: 1rem 0 0;
}

.stats div {
  display: grid;
  gap: 0.25rem;
}

.stats dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.stats dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.count-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.count-card {
  display: grid;
  gap: 0.4rem;
  min-height: 6rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem;
  background: #111317;
}

.count-card span {
  color: var(--muted);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.count-card strong {
  align-self: end;
  font-size: 2.5rem;
  line-height: 1;
}

.empty-state {
  color: var(--muted);
}

.alert-panel {
  position: fixed;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  margin: 0;
  border-color: rgba(255, 77, 77, 0.7);
  background: var(--danger);
  color: white;
  text-align: center;
  animation: alert-pulse 0.32s steps(2, end) 8;
}

.alert-panel p {
  padding: 1rem;
  font-size: clamp(3rem, 16vw, 11rem);
  font-weight: 950;
  text-transform: uppercase;
}

@keyframes alert-pulse {
  0% {
    background: #ff1414;
  }

  50% {
    background: #ffffff;
    color: #ff1414;
  }

  100% {
    background: #ff1414;
  }
}

.panel + .panel {
  margin-top: 1rem;
}

.qr-dialog {
  max-width: min(92vw, 28rem);
  border: 0;
  border-radius: 8px;
  padding: 0;
  background: transparent;
}

.qr-dialog::backdrop {
  background: rgba(0, 0, 0, 0.68);
}

.qr-box {
  display: grid;
  gap: 1rem;
  padding: 1.25rem;
  border: 4px solid #111;
  border-radius: 8px;
  background: #f7f4ee;
  color: #24242a;
  text-align: center;
}

.qr-box h2 {
  font-size: 1.4rem;
}

.qr-box img {
  width: min(72vw, 20rem);
  height: min(72vw, 20rem);
  margin: 0 auto;
  border: 1px solid #ddd;
  background: white;
}

.qr-box p {
  color: #4c4655;
  font-size: 0.86rem;
  overflow-wrap: anywhere;
}

.qr-box button {
  background: var(--purple);
  color: white;
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 2rem, 980px);
    padding-top: 1rem;
  }

  .hero,
  .setup-panel,
  .mode-grid,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .join-board {
    grid-template-columns: 1fr;
  }

  .join-board button {
    width: 100%;
  }

  .room-row,
  .actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero {
    display: grid;
    min-height: 20vh;
  }

  .connection {
    width: fit-content;
  }

  .actions button {
    width: 100%;
  }
}