* {
  margin: 0;
  padding: 0;
  font-family: helvetica;
  color: #333;
  box-sizing: border-box;
}

html {
  height: 100vh;
}

body {
    min-height: 100vh;
    background:
      linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,.55)),
      url("https://images.pexels.com/photos/39811/pexels-photo-39811.jpeg");
    background-size: cover;
    background-position: center;
}

button {
    background-color: transparent;
    border: 1px solid #ccc;
    color: #444;
    padding: .35rem .6rem;
    border-radius: 6px;
    transition: .2s;
}

button:hover {
    background-color: #102f5e;
    border-color: #102f5e;
    color: #fff;
}

button i {
    color: inherit;
    pointer-events: none;
}

input,
select {
  padding: 0.25rem 0.5rem;
}


.hide {
  display: none;
}

.todo-container {
    max-width: 460px;
    margin: 6rem auto;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(6px);
    padding: 1.6rem;
    border-radius: 18px;
    box-shadow: 0 20px 40px rgba(0,0,0,.35);
}

.todo-container header {
  text-align: center;
  padding: 0 1rem 1rem;
  border-bottom: 1px solid #ccc;
}

#todo-form .form-control {
  text-align: center;
  margin: 0 auto;
}

#todo-form {
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#todo-form,
#edit-form {
  padding: 1rem;
  border-bottom: 1px solid #ccc;
}

#todo-form p,
#edit-form p {
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.form-control {
  display: flex;
}

.form-control input {
  margin-right: 0.3rem;
}

#cancel-edit-btn {
  margin-top: 1rem;
}

#toolbar {
  padding: 1rem;
  border-bottom: 1px solid #ccc;
  display: flex;
}

#toolbar h4 {
  margin-bottom: 0.5rem;
}

#search {
  border-right: 1px solid #ddd;
  padding-right: 1rem;
  margin-right: 1rem;
  width: 65%;
  display: flex;
  flex-direction: column;
}

#search form {
  display: flex;
}

#search-input {
  width: 100%;
  margin-right: 0.3rem;
}

#filter {
  width: 35%;
  display: flex;
  flex-direction: column;
}

#filter select {
  flex: 1;
}

.todo {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .9rem;
    border-radius: 10px;
    margin-bottom: .4rem;
    background-color: #f5f5f5;
    border: 1px solid #ddd;
}

.todo.fixed { 
    border: 2px solid rgb(70, 70, 70); 
    background-color: #969696; 
}

.todo h3 {
  flex: 1;
  font-size: 0.9rem;
}

.todo button {
  margin-left: 0.4rem;
}

.todo.done {
    background-color: #2f4f6f;
    border-color: #2f4f6f;
}

.todo.done h3 {
    color: #fff;
    text-decoration: line-through;
    opacity: .85;
}