* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #fff;
  min-height: 100vh;
  padding: 16px;
  color: #000;
  line-height: 1.4;
}

#app {
  max-width: 600px;
  margin: 0 auto;
}

.loading {
  text-align: center;
  color: #333;
  font-size: 16px;
  padding: 40px;
}

.container {
  background: #fff;
  border: 1px solid #000;
  padding: 24px;
}

h1 {
  font-size: 28px;
  margin-bottom: 8px;
  text-align: center;
  font-weight: 700;
}

h2 {
  font-size: 22px;
  margin: 24px 0 12px;
  font-weight: 700;
}

h3 {
  font-size: 16px;
  margin: 16px 0 8px;
  font-weight: 700;
}

.subtitle {
  text-align: center;
  color: #555;
  margin-bottom: 24px;
  font-size: 14px;
}

input, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #000;
  font-size: 16px;
  font-family: inherit;
  margin-bottom: 12px;
}

input:focus, textarea:focus {
  outline: none;
  border-width: 2px;
}

button {
  background: #fff;
  color: #000;
  border: 1px solid #000;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  width: 100%;
  margin-bottom: 8px;
  text-align: left;
}

button:hover {
  background: #f0f0f0;
}

button:active {
  background: #e0e0e0;
}

button.secondary {
  background: #fff;
  color: #000;
}

button.danger {
  background: #fff;
  color: #000;
  border-color: #000;
}

button.success {
  background: #000;
  color: #fff;
  border-color: #000;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.share-section {
  border: 1px solid #000;
  padding: 16px;
  margin-bottom: 24px;
}

.share-link {
  font-family: monospace;
  word-break: break-all;
  background: #f5f5f5;
  padding: 8px;
  font-size: 12px;
  margin: 8px 0;
  border: 1px solid #000;
}

.card-list {
  list-style: none;
  margin: 16px 0;
}

.card-item {
  border: 1px solid #000;
  padding: 10px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.player-list {
  list-style: none;
  margin: 16px 0;
}

.player-item {
  border: 1px solid #000;
  padding: 10px;
  margin-bottom: 8px;
}

.player-item button {
  margin: 0;
  border: none;
  padding: 0;
  width: auto;
}

.player-item button:hover {
  background: transparent;
  text-decoration: underline;
}

.team-badge {
  display: inline-block;
  padding: 2px 6px;
  border: 1px solid #000;
  font-size: 12px;
  font-weight: 600;
  margin-left: 8px;
}

.team-1 {
  background: #fff;
  color: #000;
}

.team-2 {
  background: #000;
  color: #fff;
}

.round-header {
  border: 1px solid #000;
  padding: 20px;
  text-align: center;
  margin-bottom: 24px;
}

.round-header h2 {
  margin: 0 0 8px;
}

.round-rules {
  font-size: 14px;
  color: #333;
}

.scoreboard {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.score-box {
  border: 1px solid #000;
  padding: 16px;
  text-align: center;
}

.score-box.active {
  border-width: 2px;
  background: #f5f5f5;
}

.score-label {
  font-size: 14px;
  color: #555;
  margin-bottom: 4px;
}

.score-value {
  font-size: 28px;
  font-weight: bold;
  color: #000;
}

.card-display {
  border: 2px solid #000;
  padding: 40px 20px;
  text-align: center;
  margin: 24px 0;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-text {
  font-size: 24px;
  font-weight: bold;
  line-height: 1.3;
}

.timer {
  border: 1px solid #000;
  padding: 14px;
  text-align: center;
  margin-bottom: 16px;
  font-size: 22px;
  font-weight: bold;
}

.timer.urgent {
  background: #000;
  color: #fff;
}

.button-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}

.stats {
  text-align: center;
  color: #555;
  margin: 16px 0;
  font-size: 14px;
}

.winner {
  border: 2px solid #000;
  padding: 28px;
  text-align: center;
  margin-bottom: 24px;
}

.winner h2 {
  margin: 0 0 8px;
}

.error {
  border: 1px solid #000;
  background: #f5f5f5;
  color: #000;
  padding: 10px;
  margin-bottom: 16px;
}

.info {
  border: 1px solid #000;
  background: #f5f5f5;
  color: #000;
  padding: 10px;
  margin-bottom: 16px;
  font-size: 14px;
}

.team-section {
  margin: 24px 0;
}

.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.empty-state {
  text-align: center;
  color: #555;
  padding: 24px;
}

.copy-status {
  font-size: 14px;
  color: #555;
  margin-top: 8px;
}