:root {
    --color-primary: #a7e614;
    --color-secondary: #77a708;
    --color-background: #fdfdfd;
    --color-surface: #ffffff;
    --color-text-primary: #000000;
    --color-text-secondary: #757575;
    --color-danger: #a7e614;
    --shadow: 0 4px 15px #81f003;
    --border-radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
}

.containerPrincipal {
    max-width: 1200px;
    margin: 40px auto;
    padding: 30px;
}

.app-header {
    display: flex; /* Cambiado a flex para mejor alineación */
    justify-content: space-between; /* Alinea título a la izq. y botones a la der. */
    align-items: center;
    width: 100%;
    margin-bottom: 30px;
    gap: 20px;
}

.app-header h1 {
    /* Se eliminan las propiedades de grid */
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-primary);
}

.input-container {
    display: flex;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.inputIngresar {
    flex-grow: 1;
    border: 1px solid #e0e0e0;
    border-right: none;
    padding: 15px 20px;
    font-size: 1rem;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    outline: none;
    transition: border-color 0.3s ease;
}

.inputIngresar:focus {
    border-color: var(--color-primary);
    z-index: 1;
    position: relative;
}

.btn-add {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    color: white;
    font-size: 1.8rem;
    font-weight: 400;
    padding: 15px 25px;
    cursor: pointer;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.btn-add:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(106, 17, 203, 0.3);
}

.btn-add:active {
    transform: scale(0.98);
    box-shadow: none;
}

/* Contenedor para los botones del header */
.header-actions {
    display: flex;
    gap: 10px;
}

/* Estilo base para los botones secundarios (Salir) */
.btn-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background-color: var(--color-surface);
    color: var(--color-text-secondary);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.btn-secondary svg {
    transition: stroke 0.3s ease;
}

/* Estilo específico para el botón de peligro (Salir) */
.btn-secondary.btn-danger:hover {
    border-color: var(--color-danger);
    color: var(--color-danger);
    background-color: #fff5f5;
}

.containerSecundario {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.columna {
    background-color: rgb(241, 239, 239);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.columna h2 {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #16fc02;
    color: var(--color-text-primary);
}

.tareas-container {
    background-color: rgba(0, 0, 0, 0.02);
    border-radius: var(--border-radius);
    padding: 15px;
    min-height: 200px;
}

.tarea {
    background-color: var(--color-surface);
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.tarea:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.tarea.dragging {
    opacity: 0.5;
    transform: rotate(3deg);
}

.tarea p {
    flex-grow: 1;
    margin: 0;
}

/* Estilos para el icono de eliminar */
.delete-icon {
    cursor: pointer;
    color: var(--color-text-secondary);
    font-weight: bold;
    padding-left: 10px; /* Añade un poco de espacio */
    transition: color 0.3s ease, transform 0.3s ease;
}

.delete-icon:hover {
    color: var(--color-danger);
    transform: scale(1.2);
}

/* --- ESTILOS DE AUTENTICACIÓN PARA ESCRITORIO Y MÓVIL --- */

.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100vh;
    background: var(--color-background);
}

.container-auth {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 768px;
    min-height: 480px;
}

.form-container {
    position: absolute;
    top: 0;
    height: 100%;
    transition: all 0.6s ease-in-out;
}

.sign-in-container {
    left: 0;
    width: 50%;
    z-index: 2;
}

.container-auth.right-panel-active .sign-in-container {
    transform: translateX(100%);
}

.sign-up-container {
    left: 0;
    width: 50%;
    opacity: 0;
    z-index: 1;
}

.container-auth.right-panel-active .sign-up-container {
    transform: translateX(100%);
    opacity: 1;
    z-index: 5;
    animation: show 0.6s;
}

@keyframes show {
    0%, 49.99% {
        opacity: 0;
        z-index: 1;
    }
    50%, 100% {
        opacity: 1;
        z-index: 5;
    }
}

.auth-form {
    background-color: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 50px;
    height: 100%;
    text-align: center;
}

.auth-form h1 {
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--color-text-primary);
}

.auth-form input {
    background-color: #eee;
    border: none;
    padding: 12px 15px;
    margin: 8px 0;
    width: 100%;
    border-radius: 8px;
}

.forgot-password {
    color: var(--color-text-secondary);
    font-size: 14px;
    text-decoration: none;
    margin: 15px 0;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: var(--color-primary);
}

.auth-form button {
    border-radius: 20px;
    border: 1px solid var(--color-primary);
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    color: #FFFFFF;
    font-size: 12px;
    font-weight: bold;
    padding: 12px 45px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: transform 80ms ease-in;
    cursor: pointer;
    margin-top: 10px;
}

.auth-form button:active {
    transform: scale(0.95);
}

.auth-form button:focus {
    outline: none;
}

.ghost {
    border-radius: 20px;
    border: 2px solid #FFFFFF;
    background-color: transparent;
    color: #FFFFFF;
    font-size: 12px;
    font-weight: bold;
    padding: 12px 45px;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
}

.ghost:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.ghost:active {
    transform: scale(0.95);
}

.overlay-container {
    position: absolute;
    top: 0;
    left: 50%;
    width: 50%;
    height: 100%;
    overflow: hidden;
    transition: transform 0.6s ease-in-out;
    z-index: 100;
}

.container-auth.right-panel-active .overlay-container {
    transform: translateX(-100%);
}

.overlay {
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 0 0;
    color: #FFFFFF;
    position: relative;
    left: -100%;
    height: 100%;
    width: 200%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
}

.container-auth.right-panel-active .overlay {
    transform: translateX(50%);
}

.overlay-panel {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 40px;
    text-align: center;
    top: 0;
    height: 100%;
    width: 50%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
}

.overlay-panel p {
    font-size: 14px;
    font-weight: 100;
    line-height: 20px;
    letter-spacing: 0.5px;
    margin: 20px 0 30px;
}

.overlay-left {
    transform: translateX(-20%);
}

.container-auth.right-panel-active .overlay-left {
    transform: translateX(0);
}

.overlay-right {
    right: 0;
    transform: translateX(0);
}

.container-auth.right-panel-active .overlay-right {
    transform: translateX(20%);
}

.register-link-mobile {
    display: none; /* Oculto en escritorio por defecto */
}

/* Estilos para los inputs dentro de SweetAlert2 */
.swal2-input {
    margin: 0.5em auto !important;
}

/* --- ESTILOS PARA MENÚ DE ACCIÓN DE TAREAS (MÓVIL) --- */
.swal-move-menu {
    border-radius: var(--border-radius) !important;
    padding: 15px !important;
    width: 90% !important;
    max-width: 350px !important;
}

.swal-move-menu .swal2-title {
    font-size: 1.2rem !important;
    padding: 0 0 15px !important;
    border-bottom: 1px solid #eee;
}

.swal-move-menu .swal2-html-container {
    margin: 0 !important;
}

.swal-button-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 15px;
}

.swal-move-button {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    border-radius: 8px;
    border: none;
    background-color: transparent;
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.2s ease;
}

.swal-move-button:hover {
    background-color: #f4f7f6;
}

.swal-move-button svg {
    width: 22px;
    height: 22px;
    stroke: var(--color-primary);
    flex-shrink: 0; /* Evita que el icono se encoja */
}

/* --- ESTILOS PARA NOTIFICACIÓN DE ACTUALIZACIÓN (MODO DIÁLOGO) --- */
.update-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.update-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.update-toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 15px;
  z-index: 1000;
  width: 90%;
  max-width: 380px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.update-toast.show {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  pointer-events: auto;
}

.update-toast span {
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.5;
}

.update-toast-actions {
  display: flex;
  align-items: center;
  gap: 15px;
  width: 100%;
  margin-top: 10px;
}

.update-toast .btn-update,
.update-toast .btn-dismiss {
  flex-grow: 1;
  padding: 12px 15px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
  border: none;
  transition: transform 0.2s ease, background-color 0.2s ease;
  font-size: 1rem;
}

.update-toast .btn-update {
  background-color: var(--color-primary);
  color: white;
}

.update-toast .btn-dismiss {
  background-color: #e9ecef;
  color: var(--color-text-secondary);
}

.update-toast .btn-update:hover,
.update-toast .btn-dismiss:hover {
  transform: translateY(-2px);
}

input[type="checkbox"] {
    -webkit-appearance: none;
    appearance: none;
    background-color: #fff;
    margin: 0;
    font: inherit;
    color: currentColor;
    width: 1.15em;
    height: 1.15em;
    border: 0.15em solid currentColor;
    border-radius: 0.15em;
    transform: translateY(-0.075em);
    display: grid;
    place-content: center;
    cursor: pointer;
}

input[type="checkbox"]::before {
    content: "";
    width: 0.65em;
    height: 0.65em;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    box-shadow: inset 1em 1em var(--color-primary);
    transform-origin: bottom left;
    clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

input[type="checkbox"]:checked::before {
    transform: scale(1);
}

input[type="checkbox"]:disabled {
    border-color: #ccc;
    cursor: not-allowed;
}

input[type="checkbox"]:disabled::before {
    box-shadow: inset 1em 1em #ccc;
}

@media (max-width: 768px) {
    .containerPrincipal {
        margin: 20px 10px;
        padding: 20px;
    }

    .app-header {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .app-header h1 {
       text-align: center;
    }

    .header-actions {
        width: 100%;
        max-width: 320px;
        flex-direction: column;
    }

    /* Mostrar el texto en móvil y centrar contenido */
    .btn-secondary span {
        display: inline;
    }

    .btn-secondary {
        width: 100%;
        justify-content: center;
        padding: 12px 15px;
    }

    .containerSecundario {
        grid-template-columns: 1fr;
    }

    /* --- LÓGICA PARA VISTA MÓVIL (MODAL) --- */
    .container-auth {
        max-width: 420px;
        min-height: auto;
        padding: 40px 25px;
        box-shadow: none;
        background: none;
    }

    /* Ocultar los componentes de la animación de escritorio */
    .overlay-container,
    .sign-up-container {
        display: none;
    }

    /* El formulario de inicio de sesión ocupa todo el espacio */
    .form-container,
    .sign-in-container {
        position: static;
        width: 100%;
        height: auto;
        transform: none;
        background-color: var(--color-surface);
        padding: 30px;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
    }
    
    .auth-form {
        padding: 0 30px;
    }

    /* Mostrar el enlace de registro para móvil */
    .register-link-mobile {
        display: block;
        margin-top: 25px;
        color: var(--color-text-secondary);
    }

    .register-link-mobile a {
        color: var(--color-primary);
        font-weight: 600;
        text-decoration: none;
    }

    .tarea {
        cursor: pointer; /* Indica que la tarea es interactiva al tacto */
    }
}

/* ============================================
   ESTILOS PARA NOTIFICACIONES
============================================ */

/* Banner de permisos de notificación */
.notification-permission-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    padding: 15px 20px;
    z-index: 10000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
    animation: slideDown 0.3s ease-out;
}

.permission-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    gap: 15px;
}

.btn-enable-notifications {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-enable-notifications:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
}

.btn-dismiss-notifications {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.btn-dismiss-notifications:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Contenedor de toasts */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
}

/* Estilos base del toast */
.toast {
    background: var(--color-surface);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid var(--color-primary);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.8), 
        rgba(255, 255, 255, 0.6));
    pointer-events: none;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-message {
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: 14px;
    line-height: 1.4;
}

.toast-close {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.toast-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--color-text-primary);
}

/* Estados del toast */
.toast-show {
    opacity: 1;
    transform: translateX(0);
}

.toast-hide {
    opacity: 0;
    transform: translateX(100%);
}

/* Variantes de color para diferentes tipos */
.toast-success {
    border-left-color: #27ae60;
}

.toast-error {
    border-left-color: var(--color-danger);
}

.toast-warning {
    border-left-color: #f39c12;
}

.toast-info {
    border-left-color: var(--color-secondary);
}

/* Animaciones */
@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsivo para móviles */
@media (max-width: 768px) {
    .notification-permission-banner {
        padding: 12px 15px;
    }
    
    .permission-content {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .permission-content span {
        font-size: 14px;
    }
    
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .toast {
        padding: 14px 16px;
    }
    
    .toast-message {
        font-size: 13px;
    }
}

/* Botón para configurar recordatorios (opcional) */
.reminder-btn {
    background: linear-gradient(135deg, #358585 0%, #16ad3c 100%);
    border: none;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-left: 8px;
}

.reminder-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(9, 255, 0, 0.4);
}

.reminder-btn:active {
    transform: translateY(0);
}