:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --background-color: #f0f2f5;
  --text-color: #333;
  --card-background: #ffffff;
  --shadow: 0 10px 20px rgba(0,0,0,0.1), 0 6px 6px rgba(0,0,0,0.1);
  --noise-texture: url('data:image/svg+xml,...');
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  background-image: var(--noise-texture);
}

header {
  background-color: var(--primary-color);
  color: white;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
}

h1 {
  font-size: 2.5rem;
  margin: 0;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
}

main {
  padding: 2rem;
}

.latest-section,
.recent-select-section {
  margin-bottom: 1rem;
  padding: 1.25rem;
  background-color: var(--card-background);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.latest-section h2,
.recent-select-section h2 {
  margin: 0 0 0.5rem;
}

.latest-meta {
  margin: 0 0 0.8rem;
  color: #555;
  font-weight: 700;
}

.recent-help {
  margin: 0 0 0.6rem;
  color: #666;
}

.recent-select {
  width: 100%;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 0.4rem;
  font-size: 0.95rem;
  background: #fff;
}

.selected-line {
  margin-top: 0.8rem;
}

.number-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.plus-sign {
  font-size: 1.1rem;
  font-weight: 700;
  color: #666;
  padding: 0 0.2rem;
}

.status {
  margin: 0 0 1rem;
  text-align: center;
  font-weight: 600;
}

.recommend-section {
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background-color: var(--card-background);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.partner-section {
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background-color: var(--card-background);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.comments-section {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background-color: var(--card-background);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.comments-section h2 {
  margin: 0 0 0.8rem;
}

.partner-section h2 {
  margin: 0 0 0.5rem;
}

.partner-help {
  margin: 0 0 1rem;
  color: #666;
}

.partner-form {
  display: grid;
  gap: 0.6rem;
}

.partner-form label {
  font-weight: 700;
}

.partner-form input,
.partner-form textarea {
  width: 100%;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  font-size: 0.95rem;
  box-sizing: border-box;
}

.partner-form textarea {
  resize: vertical;
  min-height: 120px;
}

.partner-form button {
  margin-top: 0.4rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-size: 1rem;
}

.recommend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.recommend-header h2 {
  margin: 0;
}

#recommend-btn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  cursor: pointer;
}

.recommend-meta {
  margin: 0.8rem 0 1rem;
  color: #666;
}

.recommend-container {
  display: grid;
  gap: 0.8rem;
}

.recommend-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.game-label {
  min-width: 52px;
  font-weight: 700;
  color: #555;
}

.ball {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background-color: #ffd54f;
  color: #2c3e50;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.ball-bonus {
  background-color: #ffb74d;
}

.controls {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.controls button {
  background-color: var(--secondary-color);
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.controls button:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

.controls button.active {
  background-color: #1a6aab;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
  transform: translateY(1px);
}

#stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  background-color: var(--card-background);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  main {
    padding: 1rem;
  }

  #stats-container {
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
  }

  .recommend-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .ball {
    width: 38px;
    height: 38px;
  }
}

@media (max-width: 480px) {
  .controls {
    flex-direction: column;
  }

  .controls button {
    width: 100%;
  }
}