/* ============================================
   quangit.online — Todo Module Styles
   ============================================ */

.todo-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.todo-toolbar__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.todo-filter {
  display: flex;
  gap: var(--space-1);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 3px;
}

.todo-filter__btn {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.todo-filter__btn:hover { color: var(--text-secondary); }
.todo-filter__btn--active {
  background: var(--primary-500);
  color: white;
}

/* Todo List */
.todo-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.todo-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: default;
  position: relative;
}

.todo-item:hover {
  border-color: rgba(255,255,255,0.12);
  background: var(--bg-hover);
}

.todo-item--done {
  opacity: 0.6;
}

.todo-item--done .todo-item__title {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

/* Checkbox */
.todo-check {
  width: 22px; height: 22px;
  border: 2px solid var(--border-strong);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  margin-top: 1px;
}

.todo-check:hover { border-color: var(--primary-500); }

.todo-check--checked {
  background: var(--primary-500);
  border-color: var(--primary-500);
}

.todo-check--checked::after {
  content: '';
  width: 6px; height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}

/* Content */
.todo-item__content { flex: 1; min-width: 0; }

.todo-item__title {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.todo-item__desc {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  line-height: 1.5;
}

.todo-item__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.todo-item__due {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.todo-item__due--overdue { color: var(--danger-500); }
.todo-item__due--today { color: var(--warning-500); }

/* Priority indicators */
.todo-priority {
  width: 4px;
  border-radius: 2px;
  align-self: stretch;
  flex-shrink: 0;
}

.todo-priority--low { background: var(--text-tertiary); }
.todo-priority--medium { background: var(--info-500); }
.todo-priority--high { background: var(--warning-500); }
.todo-priority--urgent { background: var(--danger-500); }

/* Actions */
.todo-item__actions {
  display: flex;
  gap: var(--space-1);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.todo-item:hover .todo-item__actions { opacity: 1; }

.todo-action {
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.todo-action:hover { background: var(--bg-hover); color: var(--text-primary); }
.todo-action--delete:hover { color: var(--danger-500); }

/* Quick add */
.todo-quick-add {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--bg-surface);
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  transition: border-color var(--transition-fast);
}

.todo-quick-add:focus-within {
  border-color: var(--primary-500);
  border-style: solid;
}

.todo-quick-add__input {
  flex: 1;
  font-size: var(--text-base);
  color: var(--text-primary);
}

.todo-quick-add__input::placeholder { color: var(--text-tertiary); }

/* Todo Form in modal */
.todo-form { display: flex; flex-direction: column; gap: var(--space-4); }

.todo-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.todo-form select {
  width: 100%; height: 44px;
  padding: 0 var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
}

.todo-form select option { background: var(--bg-elevated); }

/* Stats bar */
.todo-stats {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
}

.todo-stat__value {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
}

.todo-stat__label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

@media (max-width: 768px) {
  .todo-toolbar { flex-direction: column; align-items: stretch; }
  .todo-toolbar__left { flex-direction: column; }
  .todo-form__row { grid-template-columns: 1fr; }
  .todo-item__actions { opacity: 1; }
  .todo-stats { flex-wrap: wrap; gap: var(--space-3); }
  .todo-filter { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .todo-filter__btn { white-space: nowrap; font-size: var(--text-xs); }
  .todo-item { padding: var(--space-3); gap: var(--space-2); }
  .todo-quick-add { flex-direction: column; }
  .todo-quick-add__input { width: 100%; }
}