base.css

@charset "utf-8";

button {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  font-size: 100%;
  vertical-align: baseline;
  font-family: inherit;
  font-weight: inherit;
  color: inherit;
  -webkit-appearance: none;
  -ms-appearance: none;
  appearance: none;
  -webkit-font-smoothing: antialiased;
  -moz-font-smoothing: antialiased;
  -ms-font-smoothing: antialiased;
  font-smoothing: antialiased;
}

button,
input[type="checkbox"] {
  outline: none;
}

.hidden {
  display: none;
}

.visible {
  display: block !important;
}

#todoapp {
  background: #fff;
  margin: 130px 0 40px 0;
  position: relative;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.2),
  0 25px 50px 0 rgba(0, 0, 0, 0.1);
}

#todoapp input::-webkit-input-placeholder {
  font-style: italic;
  font-weight: 300;
  color: #e6e6e6;
}

#todoapp input::-moz-placeholder {
  font-style: italic;
  font-weight: 300;
  color: #e6e6e6;
}

#todoapp input::input-placeholder {
  font-style: italic;
  font-weight: 300;
  color: #e6e6e6;
}

#todoapp h1 {
  position: absolute;
  top: -155px;
  width: 100%;
  font-size: 100px;
  font-weight: 100;
  text-align: center;
  color: rgba(175, 47, 47, 0.15);
  -webkit-text-rendering: optimizeLegibility;
  -moz-text-rendering: optimizeLegibility;
  -ms-text-rendering: optimizeLegibility;
  text-rendering: optimizeLegibility;
}

#new-todo,
.edit {
  position: relative;
  margin: 0;
  width: 100%;
  font-size: 24px;
  font-family: inherit;
  font-weight: inherit;
  line-height: 1.4em;
  border: 0;
  outline: none;
  color: inherit;
  padding: 6px;
  border: 1px solid #999;
  box-shadow: inset 0 -1px 5px 0 rgba(0, 0, 0, 0.2);
  -ms-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-font-smoothing: antialiased;
  -ms-font-smoothing: antialiased;
  font-smoothing: antialiased;
}

#new-todo {
  padding: 16px 16px 16px 60px;
  border: none;
  background: rgba(0, 0, 0, 0.003);
  box-shadow: inset 0 -2px 1px rgba(0,0,0,0.03);
}

#main {
  position: relative;
  z-index: 2;
  border-top: 1px solid #e6e6e6;
}

label[for='toggle-all'] {
  display: none;
}

#toggle-all {
  position: absolute;
  top: -55px;
  left: -12px;
  width: 60px;
  height: 34px;
  text-align: center;
  border: none; /* Mobile Safari */
}

#toggle-all:before {
  content: '❯';
  font-size: 22px;
  color: #e6e6e6;
  padding: 10px 27px 10px 27px;
}

#toggle-all:checked:before {
  color: #737373;
}

#todo-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

#todo-list li {
  position: relative;
  font-size: 24px;
  border-bottom: 1px solid #ededed;
}

#todo-list li:last-child {
  border-bottom: none;
}

#todo-list li.editing {
  border-bottom: none;
  padding: 0;
}

#todo-list li.editing .edit {
  display: block;
  width: 506px;
  padding: 13px 17px 12px 17px;
  margin: 0 0 0 43px;
}

#todo-list li.editing .view {
  display: none;
}

#todo-list li .toggle {
  text-align: center;
  width: 40px;
  /* auto, since non-WebKit browsers doesn't support input styling */
  height: auto;
  position: absolute;
  top: 0;
  bottom: 0;
  margin: auto 0;
  border: none; /* Mobile Safari */
  -webkit-appearance: none;
  -ms-appearance: none;
  appearance: none;
}

#todo-list li .toggle:after {
  content: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="-10 -18 100 135"><circle cx="50" cy="50" r="50" fill="none" stroke="#ededed" stroke-width="3"/></svg>');
}

#todo-list li .toggle:checked:after {
  content: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="-10 -18 100 135"><circle cx="50" cy="50" r="50" fill="none" stroke="#bddad5" stroke-width="3"/><path fill="#5dc2af" d="M72 25L42 71 27 56l-4 4 20 20 34-52z"/></svg>');
}

#todo-list li label {
  white-space: pre;
  word-break: break-word;
  padding: 15px 60px 15px 15px;
  margin-left: 45px;
  display: block;
  line-height: 1.2;
  transition: color 0.4s;
}

#todo-list li.completed label {
  color: #d9d9d9;
  text-decoration: line-through;
}

#todo-list li .destroy {
  display: none;
  position: absolute;
  top: 0;
  right: 10px;
  bottom: 0;
  width: 40px;
  height: 40px;
  margin: auto 0;
  font-size: 30px;
  color: #cc9a9a;
  margin-bottom: 11px;
  transition: color 0.2s ease-out;
}

#todo-list li .destroy:hover {
  color: #af5b5e;
}

#todo-list li .destroy:after {
  content: '×';
}

#todo-list li:hover .destroy {
  display: block;
}

#todo-list li .edit {
  display: none;
}

#todo-list li.editing:last-child {
  margin-bottom: -1px;
}

#footer {
  color: #777;
  padding: 10px 15px;
  height: 20px;
  text-align: center;
  border-top: 1px solid #e6e6e6;
}

#footer:before {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 50px;
  overflow: hidden;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2),
  0 8px 0 -3px #f6f6f6,
  0 9px 1px -3px rgba(0, 0, 0, 0.2),
  0 16px 0 -6px #f6f6f6,
  0 17px 2px -6px rgba(0, 0, 0, 0.2);
}

#todo-count {
  float: left;
  text-align: left;
}

#todo-count strong {
  font-weight: 300;
}

#filters {
  margin: 0;
  padding: 0;
  list-style: none;
  position: absolute;
  right: 0;
  left: 0;
}

#filters li {
  display: inline;
}

#filters li a {
  color: inherit;
  margin: 3px;
  padding: 3px 7px;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 3px;
}

#filters li a.selected,
#filters li a:hover {
  border-color: rgba(175, 47, 47, 0.1);
}

#filters li a.selected {
  border-color: rgba(175, 47, 47, 0.2);
}

#clear-completed,
html #clear-completed:active {
  float: right;
  position: relative;
  line-height: 20px;
  text-decoration: none;
  cursor: pointer;
  visibility: hidden;
  position: relative;
}

#clear-completed::after {
  visibility: visible;
  content: 'Clear completed';
  position: absolute;
  right: 0;
  white-space: nowrap;
}

#clear-completed:hover::after {
  text-decoration: underline;
}

#info {
  margin: 65px auto 0;
  color: #bfbfbf;
  font-size: 10px;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
  text-align: center;
}

#info p {
  line-height: 1;
}

#info a {
  color: inherit;
  text-decoration: none;
  font-weight: 400;
}

#info a:hover {
  text-decoration: underline;
}

/*
Hack to remove background from Mobile Safari.
Can't use it globally since it destroys checkboxes in Firefox
*/
@media screen and (-webkit-min-device-pixel-ratio:0) {
  #toggle-all,
  #todo-list li .toggle {
    background: none;
  }

  #todo-list li .toggle {
    height: 40px;
  }

  #toggle-all {
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
    -webkit-appearance: none;
    appearance: none;
  }
}

@media (max-width: 430px) {
  #footer {
    height: 50px;
  }

  #filters {
    bottom: 10px;
  }
}