:root {
  --court-green: #2e7d32;
  --court-dark: #1b5e20;
  --line-white: #fafafa;
  --accent: #ffd54f;
  --danger: #e53935;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  background: linear-gradient(160deg, var(--court-green), var(--court-dark));
  color: var(--line-white);
  display: flex;
  justify-content: center;
  padding: 24px 16px;
}

.container {
  width: 100%;
  max-width: 640px;
}

h1 {
  margin: 0 0 4px;
  font-size: 1.8rem;
}

.subtitle {
  margin: 0 0 20px;
  opacity: 0.8;
  font-size: 0.9rem;
}

.winner-banner {
  background: var(--accent);
  color: #333;
  font-weight: bold;
  font-size: 1.2rem;
  text-align: center;
  padding: 14px;
  border-radius: 8px;
  margin-bottom: 16px;
  animation: pop 0.4s ease;
}

.hidden {
  display: none;
}

@keyframes pop {
  from { transform: scale(0.8); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

.scoreboard {
  width: 100%;
  border-collapse: collapse;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  overflow: hidden;
}

.scoreboard th,
.scoreboard td {
  padding: 12px 10px;
  text-align: center;
}

.scoreboard thead th {
  background: rgba(0, 0, 0, 0.3);
  font-size: 0.8rem;
  font-weight: normal;
  letter-spacing: 0.05em;
}

.player-col {
  text-align: left !important;
  width: 40%;
}

.player-col input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.4);
  color: var(--line-white);
  font-size: 1rem;
  padding: 4px 2px;
}

.player-col input:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.num {
  font-size: 1.3rem;
  font-variant-numeric: tabular-nums;
}

.point {
  color: var(--accent);
  font-weight: bold;
  min-width: 3.5em;
}

.point-btn {
  background: var(--accent);
  color: #333;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.1s ease;
}

.point-btn:hover:not(:disabled) {
  transform: scale(1.05);
}

.point-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.status {
  text-align: center;
  min-height: 1.5em;
  font-size: 1rem;
  margin: 16px 0;
}

.controls {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.controls button {
  background: transparent;
  color: var(--line-white);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
}

.controls button:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.15);
}

.controls button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

#reset-btn:hover {
  border-color: var(--danger);
  color: #ffcdd2;
}

.set-history h2 {
  font-size: 1rem;
  margin: 24px 0 8px;
  opacity: 0.85;
}

.set-log {
  margin: 0;
  padding-left: 24px;
}

.set-log li {
  padding: 2px 0;
  font-variant-numeric: tabular-nums;
}