/* CSS Variables */
:root {
  --primary: #2563eb;
  --primary-light: #3b82f6;
  --primary-dark: #1d4ed8;
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
  --nav-height: 64px;
  --header-height: 56px;
}

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

/* Base */
html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 480px;
  margin: 0 auto;
  background: var(--bg);
}

/* Header */
.header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header h1 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

/* Main Content */
.main-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px;
  padding-bottom: calc(var(--nav-height) + 16px);
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  height: var(--nav-height);
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.nav-item.active {
  color: var(--primary);
}

.nav-icon {
  width: 24px;
  height: 24px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:active {
  background: var(--primary-dark);
  transform: scale(0.98);
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:active {
  background: var(--border);
  transform: scale(0.98);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:active {
  opacity: 0.9;
  transform: scale(0.98);
}

.btn-full {
  width: 100%;
}

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
}

/* Form Elements */
.input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 16px;
  background: var(--bg-card);
  color: var(--text);
  transition: border-color var(--transition);
}

.input:focus {
  outline: none;
  border-color: var(--primary);
}

.input-group {
  margin-bottom: 16px;
}

.input-label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Section Headers */
.section-header {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  margin-top: 24px;
}

.section-header:first-child {
  margin-top: 0;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state-text {
  font-size: 16px;
  margin-bottom: 24px;
}

/* List Items */
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  box-shadow: var(--shadow);
}

.list-item-content {
  flex: 1;
}

.list-item-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
}

.list-item-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.list-item-actions {
  display: flex;
  gap: 8px;
}

/* Icon Buttons */
.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.icon-btn:active {
  background: var(--bg);
  color: var(--text);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.2s ease forwards;
}

/* Page Transitions */
.page {
  animation: fadeIn 0.15s ease;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.hidden { display: none !important; }

/* Home Page Specific */
.home-hero {
  text-align: center;
  padding: 32px 16px;
}

.home-hero-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.home-hero-subtitle {
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* Game Summary Card */
.game-summary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.game-summary-title {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 8px;
}

.game-summary-players {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.game-summary-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
}

.game-summary-stat {
  text-align: center;
}

.game-summary-stat-value {
  font-size: 24px;
  font-weight: 700;
}

.game-summary-stat-label {
  font-size: 12px;
  opacity: 0.8;
}

.btn-continue {
  background: white;
  color: var(--primary);
  width: 100%;
}

.btn-continue:active {
  background: rgba(255,255,255,0.9);
}

/* Player Cards (Scoreboard) */
.players-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.player-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  overflow: hidden;
  cursor: pointer;
}

.player-card-main {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
}

.player-card.player-warning {
  background: #fef3c7;
  border-left: 4px solid var(--warning);
}

.player-card.player-out {
  opacity: 0.5;
  background: #f1f5f9;
}

.player-rank {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 16px;
}

.player-out .player-rank {
  background: var(--text-muted);
  font-size: 11px;
}

.player-info {
  flex: 1;
}

.player-name {
  font-size: 16px;
  font-weight: 600;
}

.player-margin {
  font-size: 13px;
  color: var(--text-muted);
}

.player-score {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.player-out .player-score {
  color: var(--text-muted);
}

.expand-icon {
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 8px;
}

/* Round History (expanded) */
.player-rounds {
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  background: var(--bg);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.round-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}

.round-row:active {
  background: var(--border);
}

.round-num {
  color: var(--text-muted);
  font-size: 12px;
}

.round-score {
  font-weight: 600;
}

.round-score.round-win {
  color: var(--success);
}

.round-score.round-reentry {
  color: var(--danger);
  font-weight: 700;
}

.reentry-row {
  background: #fee2e2;
  border: 1px solid #fecaca;
}

.reentry-badge {
  font-size: 10px;
  font-weight: 700;
  color: white;
  background: var(--danger);
  padding: 2px 4px;
  border-radius: 4px;
  margin-left: 4px;
}

.player-card.expanded {
  box-shadow: var(--shadow-md);
}

/* Game Over */
.game-over {
  text-align: center;
  padding: 32px 16px;
  background: linear-gradient(135deg, var(--success), #16a34a);
  color: white;
  border-radius: var(--radius);
  margin-top: 24px;
}

.game-over h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.game-over .btn {
  background: white;
  color: var(--success);
}

/* Player Checkboxes (New Game Setup) */
.player-checkboxes {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.player-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.player-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
}

.player-checkbox-name {
  font-size: 16px;
  font-weight: 500;
}

/* Score Entry */
.score-entry-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.score-entry-player {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.score-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.score-entry-name {
  font-size: 16px;
  font-weight: 600;
}

.score-entry-total {
  font-size: 14px;
  color: var(--text-muted);
}

.score-entry-buttons {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.btn-score {
  flex: 1;
  padding: 10px 12px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-winner {
  background: #dcfce7;
  color: #166534;
}

.btn-winner:active {
  background: #bbf7d0;
}

.btn-drop {
  background: #fef3c7;
  color: #92400e;
}

.btn-drop:active {
  background: #fde68a;
}

.btn-mdrop {
  background: #fee2e2;
  color: #991b1b;
}

.btn-mdrop:active {
  background: #fecaca;
}

.score-input {
  font-size: 18px;
  text-align: center;
  font-weight: 600;
}

/* History Cards */
.history-card {
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.history-card:active {
  transform: scale(0.98);
}

/* Game Details */
.game-detail-header {
  text-align: center;
  padding: 16px 0 24px;
}

.game-detail-header h2 {
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 4px;
}

/* Scorecard Table */
.scorecard {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.scorecard-header {
  display: flex;
  background: var(--primary);
  color: white;
  font-weight: 600;
  font-size: 14px;
}

.scorecard-row {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.scorecard-row:last-child {
  border-bottom: none;
}

.scorecard-total {
  background: var(--bg);
  font-weight: 700;
}

.scorecard-cell {
  flex: 1;
  padding: 12px 8px;
  text-align: center;
  font-size: 14px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scorecard-round {
  flex: 0 0 60px;
  background: var(--bg);
  font-weight: 500;
  color: var(--text-secondary);
}

.scorecard-header .scorecard-round {
  background: var(--primary-dark);
  color: white;
}

.scorecard-cell.score-win {
  color: var(--success);
  font-weight: 600;
}

.scorecard-cell.score-reentry {
  color: var(--danger);
  font-weight: 700;
  background: #fee2e2;
}

.stat-reentry {
  color: var(--danger) !important;
}

/* Player Stats */
.stats-header {
  text-align: center;
  padding: 16px 0 24px;
}

.stats-header h2 {
  font-size: 24px;
  margin-bottom: 4px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.list-item-content {
  cursor: pointer;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  animation: fadeInOverlay 0.2s ease;
}

.modal-overlay.hidden {
  display: none;
}

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

.modal {
  background: var(--bg-card);
  border-radius: var(--radius);
  width: 100%;
  max-width: 340px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  padding: 20px 20px 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.modal-body {
  padding: 12px 20px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
}

.modal-body .input {
  margin-top: 12px;
}

.modal-actions {
  display: flex;
  border-top: 1px solid var(--border);
}

.modal-actions .btn {
  flex: 1;
  border-radius: 0;
  padding: 16px;
  font-size: 16px;
  background: none;
  color: var(--primary);
  border: none;
}

.modal-actions .btn:first-child {
  border-bottom-left-radius: var(--radius);
  color: var(--text-muted);
}

.modal-actions .btn:last-child {
  border-bottom-right-radius: var(--radius);
  border-left: 1px solid var(--border);
  font-weight: 600;
}

.modal-actions .btn:active {
  background: var(--bg);
}

.modal-actions .btn.btn-danger-text {
  color: var(--danger);
}

/* Toast */
#toast-container {
  position: fixed;
  top: calc(var(--header-height) + 16px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  width: 100%;
  max-width: 400px;
  padding: 0 16px;
}

.toast {
  background: var(--text);
  color: white;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
  animation: toastIn 0.3s ease;
  text-align: center;
}

.toast.toast-success {
  background: var(--success);
}

.toast.toast-error {
  background: var(--danger);
}

.toast.toast-out {
  animation: toastOut 0.2s ease forwards;
}

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

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