:root {
  --primary-color: #4a6bff;
  --secondary-color: #f5f7ff;
  --text-color: #333;
  --border-color: #e0e0e0;
  --box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

h1 {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--primary-color);
}

h2 {
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.categories-section,
.plan-section {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--box-shadow);
  margin-bottom: 2rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.btn.primary {
  background-color: var(--primary-color);
  color: white;
}

.btn.primary:hover {
  background-color: #3a5bef;
}

.btn.secondary {
  background-color: var(--secondary-color);
  color: var(--primary-color);
}

.btn.secondary:hover {
  background-color: #e0e5ff;
}

.category {
  background: var(--secondary-color);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}

.category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.category-name {
  font-size: 1.2rem;
  font-weight: 600;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  width: 100%;
  background: white;
}

.goal {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 0.5rem;
  background: white;
  border-radius: 4px;
}

.goal-name {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  width: 100%;
  background: white;
}

.occurrences-boxes {
  display: flex;
  gap: 0.5rem;
}

.occurrence-box {
  width: 20px;
  height: 20px;
  border: 1px solid var(--border-color);
  border-radius: 2px;
  background: white;
}

.date-selection {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 2rem;
}

.date-input,
.name-input {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.date-input input,
.name-input input {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  background: white;
}

.name-input {
  margin-bottom: 1rem;
}

#plan-output {
  margin-top: 2rem;
}

.plan-category {
  margin-bottom: 2rem;
}

.plan-category h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.plan-goal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.plan-goal-name {
  min-width: 200px;
}

.plan-occurrences {
  display: flex;
  gap: 0.5rem;
}

.plan-box {
  width: 20px;
  height: 20px;
  border: 1px solid var(--border-color);
  border-radius: 2px;
  background: white;
}

.goal-occurrences {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  width: 80px;
  background: white;
}

.plan-heading {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border-color);
}

.plan-heading h2 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.plan-dates {
  color: var(--text-color);
  font-size: 1.1rem;
}