@import url('https://fonts.googleapis.com/css2?family=Playpen+Sans+Arabic:wght@100..800&display=swap');


:root {
  --color-bg: hsla(240, 15%, 10%, 1);
  /* deep navy */
  --color-card: hsla(240, 15%, 15%, 1);
  /* soft charcoal */
  --color-item: hsla(240, 15%, 20%, 1);
  /* slate gray */
  --color-text: hsla(0, 0%, 95%, 1);
  /* near-white */
  --color-muted: hsla(0, 0%, 65%, 1);
  /* muted gray */
  --color-shadow: hsla(260, 100%, 60%, 0.08);
  /* violet glow */
  --color-primary: hsla(200, 100%, 60%, 1);
  /* neon blue */
  --color-primary-light: hsla(200, 100%, 60%, 0.2);
  /* translucent neon blue */
  --color-accent: hsla(340, 100%, 65%, 1);
  /* electric pink */
  --radius: 1.2rem;
  --radius-small: 0.6rem;
  --font-main: 'Quicksand', 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 50px 20px;
  font-family: var(--font-main);
  background: linear-gradient(to bottom, var(--color-bg), var(--color-bg) 60%, var(--color-bg) 100%);
  display: flex;
  font-family: "Playpen Sans Arabic", cursive;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  justify-content: center;
  min-height: 100vh;
}

.TodoApp {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px;
}

.app-container {
  background: var(--color-card);
  padding: 40px;
  border-radius: var(--radius);
  width: 100%;
  max-width: 800px;
  box-shadow: 0 10px 30px var(--color-shadow);
  border: 3px dashed var(--color-primary-light);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-5px);
  }
}

.app-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: var(--color-primary);
  text-shadow: 2px 2px 4px var(--color-primary-light);
}

.todo-form {
  display: flex;
  margin-bottom: 30px;
  width: 100%;
}

.todo-input {
  flex: 1;
  padding: 1.5rem 1.5rem;
  font-size: 18px;
  border: none;
  caret-color: var(--color-primary);
  border-radius: var(--radius-small);
  box-shadow: inset 0 1px 3px var(--color-shadow);
  background: var(--color-bg);
  color: var(--color-text);
}

.todo-input:focus {
  outline: none;
  border: 2px solid var(--color-primary);
  box-shadow: 0 0 5px 2px var(--color-primary-light);
}

.todo-list {
  list-style: none;
  padding: 1rem;
  margin: 0;
  width: 100%;
  max-height: 60vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.todo-list::-webkit-scrollbar {
  width: 10px;
}

.todo-list::-webkit-scrollbar-thumb {
  background-color: var(--color-primary);
  border-radius: 10px;
}

.todo-item {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  background: var(--color-item);
  border-radius: var(--radius-small);
  padding: 0.8rem 1rem;
  box-shadow: 0 3px 10px var(--color-shadow);
  transition: background 0.3s;
}

.todo-item:hover {
  background: var(--color-primary-light);
}

.todo-checkbox {
  transform: scale(1.3);
  cursor: pointer;
  accent-color: var(--color-primary);
  margin-right: 1rem;
}

.todo-text {
  font-size: 1rem;
  flex: 1;
  cursor: pointer;
  padding: 1rem;
  color: var(--color-text);
  transition: color 0.3s;
}

.todo-text.completed {
  text-decoration: line-through;
  font-style: italic;
}

.footer {
  display: flex;
  justify-content: space-between;
  background-color: var(--color-card);
  padding: 10px;
  font-size: medium;
  align-items: center;
  margin-top: 20px;
  width: 100%;
}

.count {
  font-size: 1rem;
  color: var(--color-accent);
  font-weight: bold;
}

.filters {
  display: flex;
  gap: 10px;
}

.filter-button {
  background: var(--color-primary-light);
  border: 1px solid var(--color-primary);
  font-size: 14px;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: var(--radius-small);
  color: var(--color-text);
  transition: background 0.2s, transform 0.2s;
}

.filter-button:hover {
  background: var(--color-primary);
  color: var(--color-text);
  transform: scale(1.05);
}

.filter-button.active {
  background: var(--color-primary);
  color: var(--color-text);
}

.clear-completed {
  background: var(--color-primary-light);
  border: 1px solid var(--color-primary);
  font-size: 14px;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: var(--radius-small);
  color: var(--color-primary);
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

.clear-completed:hover {
  background: var(--color-primary);
  color: var(--color-text);
  transform: scale(1.05);
}

.delete-todo {
  background: var(--color-item);
  border: 1px solid var(--color-primary);
  font-size: 14px;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: var(--radius-small);
  color: var(--color-accent);
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

@media screen and (max-width: 768px) {
  .app-container {
    padding: 20px;
  }

  .todo-form {
    flex-direction: column;
    gap: 10px;
  }

}