/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --black: #000000;
  --surface: #111111;
  --surface-2: #1A1A1A;
  --surface-3: #222222;
  --neon: #ADFF2F;
  --neon-dim: rgba(173, 255, 47, 0.15);
  --white: #FFFFFF;
  --text-primary: #FFFFFF;
  --text-secondary: #888888;
  --border: #2A2A2A;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-score: 'SF Mono', 'Menlo', 'Courier New', monospace;
}

html, body {
  font-family: var(--font);
  background: var(--black);
  color: var(--text-primary);
  height: 100%;
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* === SCREENS === */
.screen {
  display: none;
  width: 100%;
  height: 100%;
}
.screen.active {
  display: flex;
}

/* === SETUP SCREEN === */
#setup {
  align-items: center;
  justify-content: center;
  background: var(--black);
  padding: 24px;
}

.setup-inner {
  width: 100%;
  max-width: 380px;
}

.logo {
  text-align: center;
  margin-bottom: 40px;
}

.logo-img {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  display: block;
  border-radius: 16px;
  object-fit: contain;
  object-position: center top;
}

.logo h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.5px;
  text-transform: uppercase;
}

.subtitle {
  color: var(--neon);
  font-size: 13px;
  margin-top: 4px;
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 600;
}

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

.input-group label {
  display: block;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.input-group input {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--white);
  font-size: 18px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
}

.input-group input::placeholder {
  color: #444;
}

.input-group input:focus {
  border-color: var(--neon);
}

.vs-divider {
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin: 8px 0;
}

.btn-primary {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: var(--radius);
  background: var(--neon);
  color: var(--black);
  font-size: 17px;
  font-weight: 800;
  font-family: var(--font);
  cursor: pointer;
  margin-top: 24px;
  transition: transform 0.15s, opacity 0.15s;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.btn-primary:active {
  transform: scale(0.97);
  opacity: 0.85;
}

.btn-secondary {
  width: 100%;
  padding: 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  margin-top: 12px;
  transition: border-color 0.2s, color 0.2s;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.btn-secondary:active {
  border-color: var(--neon);
  color: var(--neon);
}

.btn-link {
  display: block;
  text-align: center;
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-decoration: none;
  transition: color 0.2s;
}
.btn-link:hover {
  color: var(--neon);
}

/* === SCOREBOARD SCREEN === */
#scoreboard {
  flex-direction: column;
  background: var(--black);
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
  color: var(--white);
  min-height: 56px;
  border-bottom: 1px solid var(--border);
}

.match-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--neon);
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-icon:active {
  background: var(--surface-2);
}

/* Settings Panel */
.settings-panel {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
  max-height: 300px;
  transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
  opacity: 1;
}
.settings-panel.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
}
.setting-row label {
  font-size: 14px;
  color: var(--text-secondary);
}

.setting-control {
  display: flex;
  gap: 6px;
}

.set-toggle, .toggle-btn {
  padding: 6px 16px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-secondary);
  font-family: var(--font);
  transition: all 0.15s;
}
.set-toggle.active, .toggle-btn.active {
  background: var(--neon);
  color: var(--black);
  border-color: var(--neon);
}

/* Scoreboard Table */
.scoreboard-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

#score-table {
  width: 100%;
  max-width: 500px;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

#score-table thead tr {
  background: var(--surface-2);
  color: var(--text-secondary);
}

#score-table th {
  padding: 10px 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-align: center;
}
#score-table th.player-col {
  text-align: left;
  padding-left: 16px;
  width: 40%;
}

.player-row {
  border-bottom: 1px solid var(--border);
}
.player-row:last-child {
  border-bottom: none;
}

.player-row.winner {
  background: linear-gradient(90deg, rgba(173, 255, 47, 0.08), transparent);
}

.player-name {
  padding: 16px 16px;
  font-size: 18px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
}

.set-score, .point-score {
  text-align: center;
  padding: 16px 4px;
  font-family: var(--font-score);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.point-score {
  font-size: 26px;
  color: var(--neon);
  min-width: 50px;
}

.point-score.is-tiebreak {
  color: var(--white);
}

/* Serve indicator */
.serve-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--neon);
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
  position: relative;
  top: -1px;
  box-shadow: 0 0 6px rgba(173, 255, 47, 0.4);
}

/* Tiebreak badge */
.tiebreak-badge {
  text-align: center;
  padding: 6px;
  background: var(--surface-3);
  color: var(--neon);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 4px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.tiebreak-badge.hidden { display: none; }

/* Score buttons */
.score-buttons {
  display: flex;
  gap: 2px;
  padding: 0 0 8px;
  background: var(--black);
}

.btn-score {
  flex: 1;
  padding: 28px 16px;
  border: none;
  font-family: var(--font);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: transform 0.1s, opacity 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.btn-score:active {
  transform: scale(0.96);
  opacity: 0.85;
}

.btn-p1 {
  background: var(--neon);
  color: var(--black);
}
.btn-p2 {
  background: var(--white);
  color: var(--black);
}

.btn-player-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.btn-hint {
  font-size: 12px;
  opacity: 0.5;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* Undo button */
.btn-undo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px;
  border: none;
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.btn-undo:active { background: var(--surface-2); }
.btn-undo.hidden { display: none; }

/* Winner overlay */
.winner-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 0.4s ease;
}
.winner-overlay.hidden { display: none; }

.winner-content {
  text-align: center;
  color: var(--white);
}

.trophy {
  font-size: 64px;
  margin-bottom: 16px;
  animation: bounce 0.6s ease;
}

.winner-name {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.winner-sub {
  font-size: 14px;
  color: var(--neon);
  margin-bottom: 32px;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 600;
}

.winner-content .btn-primary {
  max-width: 260px;
  margin: 0 auto;
}

/* Hidden utility */
.hidden { display: none !important; }
.set-col-4, .set-col-5 { display: none; }
.set-col-4.visible, .set-col-5.visible { display: table-cell !important; }

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

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* Score flash animation */
.flash {
  animation: flashScore 0.3s ease;
}

@keyframes flashScore {
  0% { background: rgba(173, 255, 47, 0.2); transform: scale(1.15); }
  100% { background: transparent; transform: scale(1); }
}

/* === HISTORY SCREEN === */
#history {
  flex-direction: column;
  background: var(--black);
}

.history-inner {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
  color: var(--white);
  min-height: 56px;
  border-bottom: 1px solid var(--border);
}

.history-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
  -webkit-overflow-scrolling: touch;
}

.history-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  gap: 8px;
}
.history-empty-icon {
  font-size: 48px;
  opacity: 0.4;
}
.history-empty p {
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.history-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 10px;
  cursor: default;
}

.history-card-date {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.history-card-players {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.history-card-player {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.history-card-player.winner-player .history-player-name {
  color: var(--neon);
}

.history-player-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.history-player-sets {
  font-size: 13px;
  color: var(--text-secondary);
  font-family: var(--font-score);
}

.history-card-vs {
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0 12px;
}

.history-card-score {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.history-set {
  display: flex;
  gap: 4px;
  font-family: var(--font-score);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.history-set span {
  min-width: 16px;
  text-align: center;
}

.history-set span.won {
  color: var(--text-primary);
}

/* Responsive */
@media (max-width: 380px) {
  .player-name { font-size: 15px; max-width: 100px; }
  .set-score, .point-score { font-size: 18px; }
  .point-score { font-size: 22px; }
  .btn-player-name { font-size: 17px; }
}

@media (min-width: 768px) {
  .scoreboard-container { padding: 32px; }
  .player-name { font-size: 22px; padding: 20px 24px; }
  .set-score, .point-score { font-size: 28px; padding: 20px 8px; }
  .point-score { font-size: 32px; }
  .btn-score { padding: 36px; }
  .btn-player-name { font-size: 24px; }
}

/* === DEDUCT POINT === */
.btn-deduct {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: transparent;
  border: 1px solid #EF5B5B;
  border-radius: 8px;
  color: #EF5B5B;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin: 0 auto 8px;
}
.btn-deduct.hidden { display: none; }
.btn-deduct:active { background: rgba(239, 91, 91, 0.15); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 100;
  display: flex;
  align-items: flex-end;
  animation: fadeIn 0.2s ease;
}
.modal.hidden { display: none; }
.modal-content {
  width: 100%;
  max-height: 80vh;
  background: var(--surface, #111);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  padding: 24px;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.modal-header h3 { font-size: 20px; font-weight: 700; }
.btn-icon {
  background: none;
  border: none;
  color: #888;
  cursor: pointer;
  padding: 8px;
  font-size: 18px;
}

.deduct-player-select {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.deduct-player-btn {
  flex: 1;
  padding: 14px;
  border: 1px solid #333;
  border-radius: 10px;
  background: #1a1a1a;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.deduct-player-btn.selected {
  border-color: #EF5B5B;
  background: rgba(239, 91, 91, 0.15);
  color: #EF5B5B;
}
.deduct-player-btn:active { opacity: 0.85; }

.input-group { margin-bottom: 16px; }
.input-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.input-group input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #333;
  border-radius: 10px;
  background: #1a1a1a;
  color: #fff;
  font-size: 16px;
  outline: none;
}
.input-group input:focus { border-color: #EF5B5B; }
.input-group input::placeholder { color: #444; }

.btn-danger {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 12px;
  background: #EF5B5B;
  color: #fff;
  font-size: 17px;
  font-weight: 800;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.btn-danger:active { opacity: 0.85; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }

/* === DEDUCTION HISTORY === */
.history-deductions {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid #222;
}
.deduction-entry {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 4px 0;
  font-size: 12px;
}
.deduction-icon { color: #EF5B5B; flex-shrink: 0; }
.deduction-text { color: #888; }
.deduction-text strong { color: #EF5B5B; }
.deduction-time { color: #555; font-size: 11px; }