/* Importar tipografía limpia y moderna */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');
@import url("https://cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/bootstrap-icons.min.css");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

/* MODO DÍA */
body {
  background: linear-gradient(135deg, #e0e0e0, #b3b3b3);
  color: #222;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 30px;
}

#global_content {
  background: #ffffff;
  padding: 25px;
  border-radius: 15px;
  width: 100%;
  max-width: 500px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

h1 {
  text-align: center;
  margin-bottom: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #222;
}

h2 {
  margin: 20px 0 10px;
  font-weight: 500;
  font-size: 1.2rem;
  color: #333;
}

/* Línea divisoria */
hr {
  border: none;
  height: 1px;
  background: rgba(0, 0, 0, 0.2);
  margin: 10px 0 20px;
}

/* Inputs y botones */
form {
  display: flex;
  gap: 10px;
}

form input {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ccc;
  outline: none;
  background: #f9f9f9;
  color: #222;
  font-size: 1rem;
}

form input::placeholder {
  color: #777;
}

form button {
  padding: 10px 15px;
  border: none;
  background: #441de0;
  color: #fff;
  font-size: 1.2rem;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

form button:hover {
  background: #5a3dff;
}

/* Contenedores de listas */
#cont-to-do-list,
#cont-chet {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Estilos para cada ítem */
.itm-to-do {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f1f1f1;
  padding: 10px 15px;
  border-radius: 10px;
  transition: 0.3s ease;
}

.itm-to-do:hover {
  transform: translateX(5px);
  background: #e1e1e1;
}

/* Checkbox */
.itm-to-do input[type="checkbox"] {
  accent-color: #5a3dff;
  transform: scale(1.3);
  cursor: pointer;
}

/* Texto de la tarea */
.itm-to-do p {
  flex: 1;
  margin: 0;
  font-size: 1rem;
  word-break: break-word;
  color: #222;
}

/* Botón de eliminar */
.itm-to-do button {
  background: transparent;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.bi-x {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: red;
  color: #fff;
  width: 28px;
  height: 28px;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.bi-x:hover {
  background: #fff;
  color: rgb(163, 4, 4);
  transform: scale(1.1);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

/* MODO NOCHE */
body.dark-mode {
  background: linear-gradient(135deg, #242463, #0e0e3f);
  color: #f5f5f5;
}

body.dark-mode #global_content {
  background: #151528;
  color: #f5f5f5;
}

body.dark-mode h1,
body.dark-mode h2 {
  color: #fff;
}

body.dark-mode form input {
  background: #1e1e2f;
  border: none;
  color: #fff;
}

body.dark-mode form input::placeholder {
  color: #9393ad;
}

body.dark-mode .itm-to-do {
  background: #1e1e2f;
}

body.dark-mode .itm-to-do:hover {
  background: #22223a;
}

body.dark-mode .itm-to-do p {
  color: #f5f5f5;
}

/* Botón para cambiar modo */
#change-style {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 20px;
  background: #000;
  font-weight: 800;
  color: #fff;
  cursor: pointer;
  border-radius: 20px;
  border: none;
  transition: background 0.3s, transform 0.2s;
}

#change-style:hover {
  background: #444;
  transform: scale(1.05);
}

body.dark-mode #change-style {
  background: #fff;
  color: #000;
}