* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f172a;
  color: #f8fafc;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(820px, 96vw);
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 24px;
}

.room-card,
.scoreboard,
.game-card {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 25px 50px -12px rgba(99, 102, 241, 0.25);
  display: grid;
  gap: 20px;
  margin-bottom: 24px;
}

.room-card h2,
.scoreboard h3 {
  margin: 0;
  color: #cbd5f5;
  text-align: center;
}

.panel {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.panel label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

.panel input {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.6);
  color: inherit;
  font-size: 1rem;
}

.panel input:focus {
  outline: 2px solid rgba(99, 102, 241, 0.8);
  outline-offset: 2px;
}

.scoreboard {
  gap: 16px;
}

.score-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.score-values {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.score-item {
  min-width: 120px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(99, 102, 241, 0.3);
  text-align: center;
}

.score-item .label,
.score-header .label {
  display: block;
  font-size: 0.75rem;
  color: #a5b4fc;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.score-item .value,
.score-header .value {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 4px;
  color: #e0e7ff;
}

.score-block {
  display: grid;
  gap: 4px;
}

.score-block .subvalue {
  font-size: 0.8rem;
  color: #a5b4fc;
  word-break: break-all;
}

.score-block {
  display: grid;
  gap: 4px;
}

.score-block .subvalue {
  font-size: 0.8rem;
  color: #a5b4fc;
  word-break: break-all;
}

.leaderboard table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(15, 23, 42, 0.6);
  border-radius: 12px;
  overflow: hidden;
}

.leaderboard th,
.leaderboard td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.leaderboard th {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #a5b4fc;
  background: rgba(59, 130, 246, 0.15);
}

.leaderboard tbody tr:last-child td {
  border-bottom: none;
}

.leaderboard tbody tr:nth-child(even) {
  background: rgba(15, 23, 42, 0.4);
}

.leaderboard tbody tr:hover {
  background: rgba(59, 130, 246, 0.2);
}

.leaderboard tbody tr.highlight {
  background: rgba(96, 165, 250, 0.3);
}

.subtitle {
  margin: 8px 0 0;
  color: #cbd5f5;
}

.context-controls {
  display: flex;
  justify-content: flex-end;
}

.context-btn {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(94, 122, 255, 0.5);
  background: rgba(59, 130, 246, 0.15);
  color: #bfdbfe;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.context-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(96, 165, 250, 0.7);
  box-shadow: 0 10px 18px rgba(96, 165, 250, 0.25);
}

.context-btn:disabled {
  cursor: default;
  opacity: 0.6;
  transform: none;
  box-shadow: none;
}

#message-container {
  background: rgba(30, 41, 59, 0.75);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.message {
  font-size: 1.05rem;
  line-height: 1.5;
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.meta {
  margin: 16px 0 0;
  color: #93c5fd;
  font-size: 0.85rem;
}

.attachments {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.embeds {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.choices {
  display: grid;
  gap: 12px;
}

.context {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.context-section {
  padding: 14px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.context-section h3 {
  margin: 0 0 8px;
  font-size: 0.9rem;
  color: #a5b4fc;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.context-entry {
  display: grid;
  gap: 6px;
  font-size: 0.95rem;
}

.context-author {
  font-weight: 600;
  color: #e0e7ff;
}

.context-timestamp {
  font-size: 0.8rem;
  color: #93c5fd;
}

.context-content {
  padding: 10px;
  border-radius: 10px;
  background: rgba(30, 41, 59, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.25);
  white-space: pre-wrap;
}

.context-empty {
  font-style: italic;
  color: #94a3b8;
}

.attachment {
  padding: 8px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.2);
  max-width: 180px;
}

.attachment-image {
  display: block;
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid rgba(30, 64, 175, 0.4);
}

.attachment-link {
  color: #bfdbfe;
  text-decoration: none;
  word-break: break-word;
}

.attachment-link:hover {
  text-decoration: underline;
}

.embed {
  padding: 14px;
  border-radius: 12px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.25);
  display: grid;
  gap: 10px;
}

.embed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.embed-title {
  font-weight: 600;
  margin: 0;
  color: #e0e7ff;
}

.embed-description {
  margin: 0;
  color: #cbd5f5;
  line-height: 1.45;
  white-space: pre-wrap;
}

.embed-thumbnail {
  max-width: 160px;
  border-radius: 10px;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.embed-video {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.35);
  max-height: 360px;
  object-fit: cover;
  background: #000;
}

.embed-iframe {
  width: 100%;
  border: none;
  border-radius: 12px;
  min-height: 240px;
}

.embed-link {
  color: #93c5fd;
  text-decoration: none;
  word-break: break-word;
}

.embed-link:hover {
  text-decoration: underline;
}

.choice-btn {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(15, 23, 42, 0.7);
  color: inherit;
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.choice-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(96, 165, 250, 0.6);
  box-shadow: 0 12px 20px rgba(96, 165, 250, 0.2);
}

.choice-btn:disabled {
  cursor: default;
  opacity: 0.7;
  transform: none;
  box-shadow: none;
}

.choice-btn.correct {
  border-color: rgba(74, 222, 128, 0.7);
  background: rgba(22, 163, 74, 0.25);
}

.choice-btn.incorrect {
  border-color: rgba(248, 113, 113, 0.7);
  background: rgba(220, 38, 38, 0.25);
}

.primary-btn,
.secondary-btn {
  padding: 12px 16px;
  border-radius: 999px;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.primary-btn {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  box-shadow: 0 12px 24px rgba(99, 102, 241, 0.35);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(99, 102, 241, 0.45);
}

.secondary-btn {
  background: rgba(59, 130, 246, 0.15);
  color: #bfdbfe;
  border: 1px solid rgba(96, 165, 250, 0.3);
}

.secondary-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(96, 165, 250, 0.5);
}

.actions {
  display: flex;
  justify-content: center;
}

.result {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: rgba(30, 41, 59, 0.7);
}

.result.correct {
  border-color: rgba(74, 222, 128, 0.6);
  background: rgba(22, 163, 74, 0.2);
}

.result.incorrect {
  border-color: rgba(248, 113, 113, 0.6);
  background: rgba(220, 38, 38, 0.2);
}

.result .result-title {
  font-size: 1.1rem;
}

.result .result-body {
  white-space: pre-wrap;
}

.hidden {
  display: none;
}

@media (max-width: 720px) {
  body {
    padding: 16px;
  }

  .room-card,
  .scoreboard,
  .game-card {
    padding: 20px;
  }

  .score-header {
    flex-direction: column;
    gap: 12px;
  }

  .score-values {
    flex-direction: column;
    gap: 12px;
  }

  .panel {
    gap: 16px;
  }

  .panel .primary-btn,
  .panel .secondary-btn,
  .actions .primary-btn,
  .actions .secondary-btn,
  .context-controls .context-btn {
    width: 100%;
  }

  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  .leaderboard table,
  .leaderboard thead,
  .leaderboard tbody,
  .leaderboard th,
  .leaderboard td,
  .leaderboard tr {
    display: block;
    width: 100%;
  }

  .leaderboard thead {
    position: absolute;
    height: 0;
    width: 0;
    overflow: hidden;
  }

  .leaderboard tbody tr {
    margin-bottom: 12px;
    background: rgba(15, 23, 42, 0.45);
    border-radius: 12px;
    padding: 12px;
  }

  .leaderboard tbody td {
    border: none;
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 0.95rem;
  }

  .leaderboard tbody td::before {
    content: attr(data-label);
    font-weight: 600;
    color: #a5b4fc;
  }
}