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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: transparent;
  overflow: hidden;
}

.container {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  color: white;
  max-height: 90vh;
  overflow-y: auto;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

h2 {
  margin-bottom: 20px;
  font-size: 20px;
  font-weight: 600;
}

.moods {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.mood-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  padding: 12px;
  font-size: 32px;
  cursor: pointer;
  transition: all 0.2s;
}

.mood-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.mood-btn.selected {
  background: rgba(255, 255, 255, 0.4);
  border-color: white;
  transform: scale(1.05);
}

.journal-section {
  margin-top: 16px;
  display: none;
}

.journal-section.active {
  display: block;
}

textarea {
  width: 100%;
  min-height: 80px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  padding: 12px;
  color: white;
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  margin-bottom: 12px;
}

textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

textarea:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.25);
}

.controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  gap: 8px;
}

button {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
  flex: 1;
}

button:hover {
  background: rgba(255, 255, 255, 0.3);
}

button.primary {
  background: rgba(255, 255, 255, 0.3);
  font-weight: 600;
}

select {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

select option {
  background: #667eea;
  color: white;
}

.history-list {
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: 16px;
}

.history-item {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 8px;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.history-mood {
  font-size: 24px;
}

.history-time {
  font-size: 12px;
  opacity: 0.8;
}

.history-note {
  font-size: 14px;
  line-height: 1.4;
  opacity: 0.9;
}

.no-history {
  text-align: center;
  opacity: 0.7;
  padding: 40px 20px;
}

.settings {
  display: none;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.settings.active {
  display: block;
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

label {
  font-size: 14px;
}

.nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.nav-tab {
  flex: 1;
  padding: 8px;
  text-align: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.nav-tab.active {
  background: rgba(255, 255, 255, 0.3);
  font-weight: 600;
}