/* Import Poppins font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;800&display=swap');

/* Basic reset and font */
body {
  margin: 0;
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
  background: linear-gradient(90deg, #06002e 0%, #009fe3 100%);
  min-height: 100vh;
}

/* Heading */
h1 {
  margin: 30px 0;
  text-align: center;
  font-weight: 800;
  padding-left: 15px;
  color: #fff;
  font-size: 2.5rem;
  letter-spacing: 2px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* Form */
#todo-form {
  display: flex;
  align-items: center;
  gap: 15px;
  width: 90%;
  max-width: 1400px;
  margin: 30px auto;
}

/* Input */
#todo-input {
  flex: 1;
  padding: 15px;
  font-size: 1.2rem;
  border-radius: 8px;
  border: 1px solid #ddd;
  outline: none;
  transition: border-color 0.2s;
}

#todo-input:focus {
  border-color: #009fe3;
}

/* Add Button */
.add-btn {
  background: #ff9800;
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 1.1rem;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.2s;
}

.add-btn:hover {
  background: #e67c00;
}

/* List Container */
#todo-list {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 40%;
  min-width: 350px;
  margin: 0 auto;
}

/* List Items */
#todo-list li {
  background: #fff;
  margin-bottom: 18px;
  padding: 18px 24px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
  font-size: 1.15rem;
  transition: box-shadow 0.2s;
}

#todo-list li:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* Checkbox */
input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: #ff2e2e;
  cursor: pointer;
}

/* Delete Button */
.delete-btn {
  background: #e57373;
  color: #fff;
  border: none;
  padding: 8px 22px;
  border-radius: 7px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.2s;
}

.delete-btn:hover {
  background: #c62828;
  font-size: 1.1rem;
  padding: 7px 12px;
  border-radius: 6px;
  border: 1px solid #bbb;
  margin-right: 10px;
  outline: none;
  transition: border-color 0.2s;
}

/* Edit Button */
.edit-btn {
  background: #64b5f6;
  color: #fff;
  border: none;
  padding: 8px 22px;
  border-radius: 7px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.2s;
}

.edit-btn:hover {
  background: #1976d2;
}

/* Edit Mode Input */
#todo-list li input[type="text"] {
  font-size: 1.1rem;
  padding: 8px 14px;
  border-radius: 7px;
  border: 1px solid #bbb;
  margin-right: 12px;
  outline: none;
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
  transition: border-color 0.2s;
}

#todo-list li input[type="text"]:focus {
  border-color: #009fe3;
}

/* Save and Cancel Buttons */
.save-btn,
.cancel-btn {
  background: #64b5f6;
  color: #fff;
  border: none;
  padding: 8px 22px;
  border-radius: 7px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 500;
  margin-right: 8px;
  transition: background 0.2s;
}

.save-btn:hover {
  background: #1976d2;
}

.cancel-btn {
  background: #e57373;
}

.cancel-btn:hover {
  background: #c62828;
}

/* Focus Accessibility */
input:focus-visible,
button:focus-visible {
  outline: 2px solid #009fe3;
  outline-offset: 2px;
}

/* Responsive design */
@media (max-width: 900px) {
  #todo-list {
    width: 50%;
    min-width: unset;
  }

  #todo-form {
    flex-direction: column;
    width: 80%;
    gap: 15px;
  }

  #todo-input,
  .add-btn {
    width: 60%;
  }

    h1 {
    font-size: 1.8 rem;
    padding-left: 0;
    margin: 18px 0;
  }
}

@media (max-width: 600px) {
  body {
    padding: 10px;
    font-size: 1rem;
  }

  h1 {
    font-size: 1.7rem;
    padding-left: 0;
    margin: 18px 0;
  }

  #todo-form {
    flex-direction: column;
    width: 80%;
    gap: 10px;
    margin: 18px auto;
  }

  #todo-input,
  .add-btn {
    width: 100%;
    font-size: 1rem;
    padding: 12px;
  }

  #todo-list {
    width: 100%;
    min-width: unset;
    font-size: 1rem;
  }

  #todo-list li {
    flex-direction: column;
    align-items: stretch;
    padding: 14px 10px;
    font-size: 1rem;
    gap: 10px;
  }

  .delete-btn,
  .edit-btn,
  .save-btn,
  .cancel-btn {
    width: 100%;
    padding: 10px 0;
    font-size: 1rem;
    margin: 4px 0;
  }

  input[type="checkbox"] {
    width: 28px;
    height: 28px;
  }
}

/* Edit Mode Styles */
.edit-mode {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.edit-mode input[type="text"] {
  padding: 10px;
  font-size: 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s;
}

.edit-mode input[type="text"]:focus {
  border-color: #009fe3;
}

.save-btn,
.cancel-btn {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.save-btn {
  background: #4caf50;
  color: #fff;
}

.save-btn:hover {
  background: #388e3c;
}

.cancel-btn {
  background: #f44336;
  color: #fff;
}

.cancel-btn:hover {
  background: #c62828;
}

/* Task Item in Edit Mode */
.task-item-edit {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.task-item-edit input[type="text"] {
  flex: 1;
  padding: 10px;
  font-size: 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s;
}

.task-item-edit input[type="text"]:focus {
  border-color: #009fe3;
}

.task-item-edit .save-btn,
.task-item-edit .cancel-btn {
  padding: 10px 15px;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.task-item-edit .save-btn {
  background: #4caf50;
  color: #fff;
}

.task-item-edit .save-btn:hover {
  background: #388e3c;
}

.task-item-edit .cancel-btn {
  background: #f44336;
  color: #fff;
}

.task-item-edit .cancel-btn:hover {
  background: #c62828;
}