:root {
  --bg: #fdf6f0;
  --card: #fff8f2;
  --text: #5a4e4d;
  --btn: #d9a272;
  --btn-hover: #c08457;
  --task-bg: #f5e7de;
  --task-completed: #e1d3cb;
  --remove: #e87d6c;
  --remove-hover: #cc4b3c;
}

body.dark {
  --bg: #1e293b;
  --card: #334155;
  --text: #f1f5f9;
  --btn: #64748b;
  --btn-hover: #475569;
  --task-bg: #475569;
  --task-completed: #64748b;
  --remove: #f87171;
  --remove-hover: #ef4444;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  height: 100vh;
  padding-top: 60px;
  transition: background 0.3s ease;
}

.todo-container {
  background: var(--card);
  padding: 25px 35px;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 600px;
  transition: background 0.3s ease;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 28px;
}

#toggle-theme {
  background-color: var(--btn);
  color: white;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  margin-bottom: 20px;
}

#toggle-theme:hover {
  background-color: var(--btn-hover);
}

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

#task-input {
  flex: 1;
  padding: 12px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

#add-btn {
  padding: 12px 18px;
  background-color: var(--btn);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

#add-btn:hover {
  background-color: var(--btn-hover);
}

.suggestion-section {
  margin-top: 15px;
  text-align: center;
}

#suggest-task {
  background-color: var(--btn);
  color: white;
  border: none;
  padding: 10px 16px;
  font-size: 15px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease;
}

#suggest-task:hover {
  background-color: var(--btn-hover);
}

.filters {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.filter-btn {
  padding: 6px 10px;
  border: none;
  border-radius: 5px;
  background-color: var(--btn);
  color: white;
  cursor: pointer;
}

.filter-btn.active {
  background-color: var(--btn-hover);
}

#clear-completed {
  background-color: var(--remove);
  border: none;
  border-radius: 5px;
  color: white;
  padding: 6px 10px;
  cursor: pointer;
}

#clear-completed:hover {
  background-color: var(--remove-hover);
}

ul {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  margin-bottom: 10px;
  background: var(--task-bg);
  border-radius: 6px;
  transition: all 0.3s ease;
  opacity: 0;
  animation: fadeIn 0.4s forwards;
  gap: 10px;
}

.task-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.task-icon {
  width: 32px;
  height: 32px;
  background-color: #fcd5ce;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 18px;
  flex-shrink: 0;
}

li.completed .task-icon {
  background-color: #cfcfcf;
}

li.completed {
  text-decoration: line-through;
  background-color: var(--task-completed);
  color: #888;
}

li button {
  background: transparent;
  border: none;
  color: var(--remove);
  font-weight: bold;
  font-size: 16px;
  cursor: pointer;
}

li button:hover {
  color: var(--remove-hover);
}

.counters {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text);
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}