:root {
  --primary-color: #6a4c93;
  --secondary-color: #e8e2ee;
  --text-color: #383049;
  --light-text-color: #b1a9c2;
  --background-color: #f2f0f7;
  --card-background-color: #eae6f0;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --border-radius: 10px;
}

body.dark-mode {
    --primary-color: #b39cd0;
    --secondary-color: #4a4159;
    --text-color: #e0e0e0;
    --light-text-color: #8c8c8c;
    --background-color: #2c2936;
    --card-background-color: #383545;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  display: flex;
  min-height: 100vh;
  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

#sidebar {
  width: 280px;
  background-color: var(--card-background-color);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 15px;
  border-right: 1px solid var(--secondary-color);
  transition: background-color 0.3s, box-shadow 0.3s, border-right 0.3s;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.sidebar-header h3 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary-color);
}

#themeToggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    transition: color 0.3s;
}

#dayList {
  flex-grow: 1;
  overflow-y: auto;
  margin-bottom: 10px;
}

.day-button {
  width: 100%;
  padding: 12px 15px;
  margin-bottom: 8px;
  background-color: var(--secondary-color);
  border: 1px solid var(--light-text-color);
  border-radius: var(--border-radius);
  text-align: left;
  font-size: 1rem;
  color: var(--text-color);
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.day-button:hover {
  background-color: #d8d4df;
  transform: translateY(-2px);
}

body.dark-mode .day-button:hover {
    background-color: #555060;
}

.day-button.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.sidebar-actions button {
  padding: 10px;
  font-size: 1rem;
  font-weight: bold;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color 0.2s;
}

.sidebar-actions button:hover {
  background-color: #5d4186;
}

.delete-day-btn {
  background-color: transparent;
  color: #c0392b;
  border: none;
  font-weight: bold;
  font-size: 1.2rem;
  padding: 5px;
  cursor: pointer;
  transition: color 0.2s;
}

.delete-day-btn:hover {
  color: #e74c3c;
}

.empty-state {
  text-align: center;
  color: var(--light-text-color);
  font-style: italic;
  font-size: 0.9rem;
}

#main {
  flex: 1;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

#dayTitle {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--primary-color);
  border-bottom: 2px solid var(--light-text-color);
  padding-bottom: 10px;
  margin-bottom: 20px;
  text-align: center;
  transition: color 0.3s;
}

.card {
  background-color: var(--card-background-color);
  padding: 25px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 15px;
  transition: background-color 0.3s, box-shadow 0.3s;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.card-header h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 600;
}

.card-header .unit {
  color: var(--light-text-color);
  font-size: 0.9rem;
  font-style: italic;
}

.counter-display {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--text-color);
  text-align: center;
}

.counter-display span {
  color: var(--primary-color);
}

.button-group {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.button-group button {
  padding: 10px 15px;
  border: 1px solid var(--light-text-color);
  border-radius: var(--border-radius);
  background-color: var(--secondary-color);
  color: var(--text-color);
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s;
}

.button-group button:hover {
  background-color: #d8d4df;
  transform: translateY(-1px);
}

body.dark-mode .button-group button:hover {
    background-color: #555060;
}

.checklist-card {
  gap: 20px;
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  border-bottom: 1px solid var(--secondary-color);
}

.checklist-item:last-child {
  border-bottom: none;
}

.checklist-item label {
  cursor: pointer;
  flex-grow: 1;
  font-size: 1rem;
  transition: color 0.2s;
}

.checklist-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  appearance: none;
  border: 1px solid var(--light-text-color);
  border-radius: 4px;
  transition: background-color 0.2s;
  position: relative;
}

.checklist-item input[type="checkbox"]:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.checklist-item input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 1rem;
}

.checklist-item input[type="checkbox"]:checked + label {
  text-decoration: line-through;
  color: var(--light-text-color);
}

.delete-task-btn {
  background-color: transparent;
  color: #c0392b;
  border: none;
  font-weight: bold;
  font-size: 1.2rem;
  cursor: pointer;
  transition: color 0.2s;
}

.delete-task-btn:hover {
  color: #e74c3c;
}

.task-input-group {
  display: flex;
  gap: 10px;
}

.task-input-group input[type="text"] {
  flex-grow: 1;
  padding: 10px;
  border: 1px solid var(--light-text-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
}

.task-input-group button {
  padding: 10px 15px;
  font-size: 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color 0.2s;
}

.task-input-group button:hover {
  background-color: #5d4186;
}

/* Mood Tracker */
.mood-card .mood-selector {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.mood-card .mood-button {
    background-color: var(--secondary-color);
    border: 1px solid var(--light-text-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
    padding: 12px 20px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.mood-card .mood-button:hover {
    background-color: #d8d4df;
}

body.dark-mode .mood-card .mood-button:hover {
    background-color: #555060;
}

.mood-card .mood-button.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.mood-display {
    text-align: center;
    font-style: italic;
    color: var(--light-text-color);
    margin-top: 10px;
}

/* Rewards Section */
.rewards-card .reward-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 15px;
    align-items: center;
    margin-bottom: 15px;
}

.rewards-card .reward-item h4 {
    margin: 0;
    display: flex;
    align-items: center;
    font-size: 1rem;
}

.rewards-card .badge {
    margin-left: 10px;
    font-size: 1.2rem;
}

.progress-bar-container {
    width: 100%;
    height: 15px;
    background-color: var(--secondary-color);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    width: 0;
    border-radius: 10px;
    transition: width 0.3s ease-in-out;
}

/* Encouragement Card */
.encouragement-card .quote {
    font-style: italic;
    font-size: 1.2rem;
    text-align: center;
    line-height: 1.5;
}

/* Modal and Analytics Styling */
.modal {
  display: none;
  position: fixed;
  z-index: 10;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(5px);
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: var(--card-background-color);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  width: 80%;
  max-width: 600px;
  position: relative;
  text-align: center;
}

.modal-content h2 {
    color: var(--primary-color);
    margin-top: 0;
}

.close-button {
  color: var(--light-text-color);
  font-size: 28px;
  font-weight: bold;
  position: absolute;
  top: 10px;
  right: 20px;
  cursor: pointer;
}

.close-button:hover,
.close-button:focus {
  color: var(--text-color);
  text-decoration: none;
}

#analyticsContent {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.analytics-card {
    background-color: var(--secondary-color);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: center;
}

.analytics-card h4 {
    margin-top: 0;
    color: var(--light-text-color);
    font-size: 1rem;
    font-weight: 500;
}

.analytics-card p {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
}

.badges-summary p {
  font-size: 2rem;
  padding: 10px 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.badges-summary p .badge-emoji {
  font-size: 1.8rem;
}

/* Streak Rescue Button */
.rescue-button {
  margin-top: 20px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: bold;
  background-color: #e74c3c;
  color: white;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color 0.2s;
}

.rescue-button:hover {
  background-color: #c0392b;
}

.rescue-button:disabled {
  background-color: #95a5a6;
  cursor: not-allowed;
}

.rescue-reason {
  margin-top: 10px;
  font-style: italic;
  color: var(--light-text-color);
}