body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-primary);
}
.app-container {
  max-width: 550px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  width: 100%;
  gap: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.app-header {
  margin-bottom: var(--spacing-xl);
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.app-header h1 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.app-header p {
  color: var(--color-text-secondary);
  font-size: 16px;
  margin: 0;
  font-weight: 500;
}

.app-main {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.todo-form-section {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(161, 188, 152, 0.2);
  box-shadow: var(--shadow-lg);
}

.todo-list-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.todo-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}