* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", sans-serif;
  background: #f0f4f8;
  color: #333;
  min-height: 100vh;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.4rem;
  color: #1a56db;
  text-align: center;
  padding: 16px 0 8px;
  border-bottom: 2px solid #1a56db;
  margin-bottom: 20px;
}

h2 {
  font-size: 1rem;
  color: #444;
  margin-bottom: 12px;
}

/* フォーム */
.form-section {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: #555;
}

.required {
  color: #e53e3e;
}

.form-group input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: #1a56db;
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-group {
  flex: 1;
}

.btn-primary {
  width: 100%;
  padding: 10px;
  background: #1a56db;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: #1447b3;
}

/* フィルター */
.filter-section {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-row label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #555;
}

.filter-row select {
  padding: 6px 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
}

/* イベント一覧 */
.event-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.event-card {
  background: #fff;
  border-radius: 8px;
  padding: 14px 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  border-left: 4px solid #1a56db;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.event-card.past {
  border-left-color: #aaa;
  opacity: 0.7;
}

.event-card.ongoing {
  border-left-color: #22c55e;
  background: #f0fdf4;
}

.event-info {
  flex: 1;
  min-width: 0;
}

.event-name {
  font-size: 1rem;
  font-weight: 700;
  color: #222;
  margin-bottom: 4px;
  word-break: break-all;
}

.event-period {
  font-size: 0.85rem;
  color: #555;
  margin-bottom: 2px;
}

.event-staff {
  font-size: 0.85rem;
  color: #777;
}

.event-memo {
  font-size: 0.8rem;
  color: #999;
  margin-top: 2px;
  word-break: break-all;
}

.event-status {
  display: inline-block;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 600;
  margin-bottom: 4px;
}

.status-ongoing {
  background: #dcfce7;
  color: #16a34a;
}

.status-upcoming {
  background: #dbeafe;
  color: #1d4ed8;
}

.status-past {
  background: #f3f4f6;
  color: #9ca3af;
}

.btn-delete {
  background: none;
  border: 1px solid #fca5a5;
  color: #ef4444;
  border-radius: 5px;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s;
}

.btn-delete:hover {
  background: #fee2e2;
}

.empty-message {
  text-align: center;
  color: #aaa;
  padding: 30px;
  font-size: 0.95rem;
}

/* トースト通知 */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #1a56db;
  color: #fff;
  padding: 10px 22px;
  border-radius: 20px;
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.2rem;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }
}