body {
  font-family: 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f4f6f8;
  color: #333;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
  gap: 10px;
}

h1 {
  font-size: 2.4rem;
  color: #1a237e;
  margin: 0;
  flex: 1;
}

h1 .year {
  color: #0d47a1;
}

.reset-button {
  background: #e53935;
  color: white;
  border: none;
  padding: 10px 15px;
  font-size: 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
  display: none;
  align-items: center;
  gap: 6px;
}

.reset-button:hover {
  background: #c62828;
}

.download-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin: 30px 0 10px 0;
  justify-content: center;
}

.download-buttons a {
  background: #1976d2;
  color: white;
  padding: 10px 15px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s;
  white-space: nowrap;
}

.download-buttons a:hover {
  background: #1259a7;
}

.banner img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.month-header {
  font-size: 1.6rem;
  color: #2c3e50;
  border-left: 6px solid #3498db;
  padding-left: 12px;
  margin-top: 50px;
  margin-bottom: 20px;
}

.calendar-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: flex-start;
}

.calendar-block {
  flex: 1 1 calc(33.333% - 20px);
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  min-width: 260px;
  max-width: 100%;
}

.calendar-header {
  background: #64b5f6;
  color: white;
  font-weight: 600;
  padding: 12px;
  text-align: center;
  border-radius: 12px 12px 0 0;
  font-size: 1rem;
}

.calendar-cell {
  padding: 15px;
}

.stage-block {
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid #f0f0f0;
}

.stage-name {
  font-weight: 600;
  color: #719d;
  margin-bottom: 8px;
}

.performance {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 4px;
}

.time {
  font-weight: 600;
  color: #555;
  white-space: nowrap;
}

.artist {
  flex-grow: 1;
  color: #333;
}

.favorite-btn {
  background: none;
  border: none;
  color: #ccc;
  font-size: 1rem;
  cursor: pointer;
  transition: color 0.2s;
}

.favorite-btn.favorited {
  color: #f1c40f;
}

.favorite-btn:hover {
  color: #f1c40f;
  transform: scale(1.1);
}

.favorites-box {
  display: none;
  background: #fff;
  border: 1px solid #dfe6e9;
  border-radius: 10px;
  padding: 15px 20px;
  margin-bottom: 30px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.favorites-box h2 {
  margin-top: 0;
  color: #e67e22;
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.favorites-box ul {
  padding-left: 20px;
  margin: 0;
}

.favorites-box li {
  margin-bottom: 6px;
}

@media (max-width: 768px) {
  .calendar-wrapper {
    flex-direction: column;
  }
  .calendar-block {
    flex: 1 1 100%;
  }
  h1 {
    font-size: 1.8rem;
    text-align: center;
    width: 100%;
  }
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .reset-button {
    margin: 10px auto;
    display: flex;
  }
  .download-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .download-buttons a {
    text-align: center;
  }
}