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

:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f3460;
  --text-primary: #eaeaea;
  --text-secondary: #a0a0a0;
  --accent: #e94560;
  --accent-hover: #ff6b6b;
  --success: #4ecca3;
  --border-radius: 12px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #666666;
    --accent: #e94560;
    --accent-hover: #d63850;
  }
}

html {
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: 100dvh;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
}

#app {
  max-width: 500px;
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Screens */
.screen {
  display: none;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.screen.active {
  display: flex;
}

/* Header */
header {
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1, header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  flex: 1;
  text-align: center;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-xs);
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Main content */
main {
  flex: 1;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  overflow-y: auto;
}

/* Form elements */
label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--spacing-xs);
}

select, input[type="text"], input[type="number"] {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  border: 2px solid var(--bg-card);
  border-radius: var(--border-radius);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a0a0a0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-sm) center;
  background-size: 20px;
  padding-right: 2.5rem;
}

select:focus, input:focus {
  outline: none;
  border-color: var(--accent);
}

.description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* Starting score and target score sections */
.starting-score-section input,
.target-score-section input {
  width: 100px;
  text-align: center;
}

/* Buttons */
button {
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

.primary-btn {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1.125rem;
  font-weight: 600;
  background-color: var(--accent);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  margin-top: auto;
}

.primary-btn:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

.primary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.secondary-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  font-weight: 500;
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: none;
  border-radius: var(--border-radius);
}

/* Player list */
.player-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  min-height: 40px;
}

.player-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--bg-card);
  border-radius: 20px;
  font-size: 0.875rem;
}

.player-chip button {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1;
  padding: 0;
  min-width: 20px;
  min-height: 20px;
}

.player-chip button:hover {
  color: var(--accent);
}

.add-player {
  display: flex;
  gap: var(--spacing-xs);
}

.add-player input {
  flex: 1;
}

.add-player button {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--accent);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-weight: 500;
}

/* Scoring area */
#scoring-area {
  gap: var(--spacing-md);
}

.player-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.player-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.player-name {
  font-weight: 600;
  font-size: 1.125rem;
}

.player-total {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

/* Simple score (generic game) */
.simple-score {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.score-display {
  font-size: 3rem;
  font-weight: 700;
  min-width: 100px;
  text-align: center;
}

.score-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  font-size: 1.5rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.score-btn.minus {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.score-btn.plus {
  background-color: var(--accent);
  color: white;
}

.score-btn:active {
  transform: scale(0.95);
}

.quick-btns {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.quick-btns-row {
  display: flex;
  gap: var(--spacing-xs);
}

.quick-btn {
  flex: 1;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border: none;
  border-radius: 4px;
  text-align: center;
}

.quick-btn:active {
  transform: scale(0.95);
}

/* Pending score area */
.pending-area {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--bg-secondary);
}

.pending-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  min-height: 44px;
}

.pending-value {
  font-size: 1.5rem;
  font-weight: 600;
  min-width: 80px;
  text-align: center;
  color: var(--text-secondary);
}

.pending-display.has-value .pending-value {
  color: var(--success);
}

.pending-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.pending-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--border-radius);
}

.pending-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pending-btn.clear {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
}

.pending-btn.double {
  background-color: var(--accent);
  color: white;
}

.pending-btn.apply {
  background-color: var(--success);
  color: var(--bg-primary);
}

.pending-btn:not(:disabled):active {
  transform: scale(0.95);
}

/* Category scoring */
.category-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.category-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.category-name {
  flex: 1;
  font-size: 0.875rem;
}

.category-input {
  width: 80px;
  text-align: center;
  padding: var(--spacing-xs);
  font-size: 1rem;
}

.category-btns {
  display: flex;
  gap: 2px;
}

.category-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-btn.minus {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.category-btn.plus {
  background-color: var(--accent);
  color: white;
}

/* Results */
.results-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.result-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
}

.result-rank {
  font-size: 1.5rem;
  font-weight: 700;
  min-width: 40px;
}

.result-rank.first {
  color: gold;
}

.result-rank.second {
  color: silver;
}

.result-rank.third {
  color: #cd7f32;
}

.result-name {
  flex: 1;
  font-weight: 500;
}

.result-score {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

.results-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: auto;
}

.results-actions button {
  flex: 1;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  z-index: 100;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  max-width: 320px;
  width: 100%;
  text-align: center;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.modal-content h2 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.modal-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.modal-actions button {
  flex: 1;
}

/* Utilities */
.hidden {
  display: none !important;
}