/* ==========================================================================
   CloudTasks — styles.css
   Dirección visual: SaaS moderno — acentos en degradado indigo/violeta,
   tarjetas flotantes con sombras suaves y coloreadas, tipografía Inter,
   control segmentado para filtros, cabecera flotante con efecto de cristal.
   Soporta tema claro/oscuro mediante [data-theme]. Sin emojis.
   ========================================================================== */

:root {
  --primary: #4f46e5;
  --primary-2: #7c3aed;
  --primary-hover: #4338ca;
  --primary-active: #3730a3;
  --primary-light: #eef2ff;
  --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);

  --text-main: #14141f;
  --text-muted: #6b7280;
  --bg-page: #f6f6fb;
  --bg-card: #ffffff;
  --border-color: #e6e6ef;
  --border-focus: #4f46e5;

  --shadow-sm: 0 1px 2px rgba(20, 20, 31, 0.05);
  --shadow-md: 0 10px 24px -8px rgba(20, 20, 31, 0.12);
  --shadow-lg: 0 24px 48px -16px rgba(20, 20, 31, 0.22);
  --shadow-card: 0 1px 1px rgba(20, 20, 31, 0.03), 0 20px 40px -20px rgba(79, 70, 229, 0.18);
  --shadow-primary: 0 10px 24px -8px rgba(79, 70, 229, 0.45);

  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-item: 18px;
  --radius-pill: 999px;
  --radius-full: 9999px;

  /* Prioridades */
  --priority-low-bg: #ecfdf5;
  --priority-low-text: #047857;
  --priority-low-border: #10b981;

  --priority-med-bg: #fffbeb;
  --priority-med-text: #b45309;
  --priority-med-border: #f59e0b;

  --priority-high-bg: #fff1f2;
  --priority-high-text: #be123c;
  --priority-high-border: #f43f5e;

  /* Estados */
  --success: #059669;
  --danger: #f43f5e;
  --danger-hover: #e11d48;

  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);

  /* Superficies auxiliares */
  --bg-header-glass: rgba(255, 255, 255, 0.75);
  --border-glass: rgba(230, 230, 239, 0.8);
  --bg-input: #fbfbfe;
  --bg-input-focus: #ffffff;
  --bg-input-error: #fff5f6;
  --bg-secondary: #f1f1f7;
  --bg-secondary-hover: #e6e6f0;
  --bg-completed: #fafafd;
  --border-completed: #d9d9e6;
  --border-subtle: #efeff5;
  --bg-code: #eeeef5;
  --bg-filter-active: #ffffff;
  --bg-blob-1: rgba(79, 70, 229, 0.10);
  --bg-blob-2: rgba(124, 58, 237, 0.10);
}

/* ==========================================================================
   Tema oscuro — activado con el botón del header (persistido en localStorage)
   o por defecto según la preferencia del sistema operativo.
   ========================================================================== */
:root[data-theme="dark"] {
  --primary: #818cf8;
  --primary-2: #c084fc;
  --primary-hover: #a5b4fc;
  --primary-active: #6366f1;
  --primary-light: rgba(129, 140, 248, 0.14);
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);

  --text-main: #f4f4f7;
  --text-muted: #9a9aad;
  --bg-page: #0a0a12;
  --bg-card: #15151f;
  --border-color: #27273a;
  --border-focus: #818cf8;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 24px -8px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 24px 48px -16px rgba(0, 0, 0, 0.7);
  --shadow-card: 0 1px 1px rgba(0, 0, 0, 0.3), 0 20px 40px -20px rgba(129, 140, 248, 0.35);
  --shadow-primary: 0 10px 24px -8px rgba(129, 140, 248, 0.35);

  --priority-low-bg: rgba(52, 211, 153, 0.14);
  --priority-low-text: #34d399;
  --priority-low-border: #34d399;

  --priority-med-bg: rgba(251, 191, 36, 0.14);
  --priority-med-text: #fbbf24;
  --priority-med-border: #fbbf24;

  --priority-high-bg: rgba(251, 113, 133, 0.14);
  --priority-high-text: #fb7185;
  --priority-high-border: #fb7185;

  --success: #34d399;
  --danger: #fb7185;
  --danger-hover: #fda4af;

  --bg-header-glass: rgba(21, 21, 31, 0.72);
  --border-glass: rgba(39, 39, 58, 0.85);
  --bg-input: #1a1a26;
  --bg-input-focus: #1f1f2d;
  --bg-input-error: #241419;
  --bg-secondary: #1e1e2a;
  --bg-secondary-hover: #292939;
  --bg-completed: #121219;
  --border-completed: #34344a;
  --border-subtle: #21212f;
  --bg-code: #1e1e2a;
  --bg-filter-active: #23232f;
  --bg-blob-1: rgba(99, 102, 241, 0.18);
  --bg-blob-2: rgba(168, 85, 247, 0.14);
}

/* Reset básico */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Utilidad genérica para ocultar elementos (ej. botón de cancelar edición) */
.hidden {
  display: none !important;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  overflow-x: hidden;
}

/* Manchas de color muy sutiles de fondo, para dar profundidad sin distraer */
body::before,
body::after {
  content: "";
  position: fixed;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(90px);
  z-index: -1;
  pointer-events: none;
}

body::before {
  top: -220px;
  right: -160px;
  background: var(--bg-blob-1);
}

body::after {
  bottom: -220px;
  left: -160px;
  background: var(--bg-blob-2);
}

/* Transición suave de color al cambiar de tema */
body,
.card,
.app-header,
.task-item,
.form-control,
.btn,
.filter-bar,
.theme-toggle {
  transition: background-color 0.2s var(--ease-smooth), border-color 0.2s var(--ease-smooth), color 0.2s var(--ease-smooth);
}

/* Contenedor Principal */
.app-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 64px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ==========================================================================
   Pantalla de acceso (login / registro) — lo único visible sin sesión
   ========================================================================== */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
}

.auth-brand {
  justify-content: center;
  margin-bottom: 24px;
}

.auth-tabs {
  width: 100%;
  margin-bottom: 20px;
}

.auth-tabs .filter-btn {
  flex: 1;
  text-align: center;
}

.auth-form-error {
  display: block;
  margin-bottom: 4px;
  min-height: 0;
}

.auth-hint {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 18px;
}

.auth-link-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--primary);
  font-weight: 600;
  font-size: inherit;
  font-family: inherit;
  cursor: pointer;
}

.auth-link-btn:hover {
  text-decoration: underline;
}

/* Chip de usuario en el header (email + badge de rol) */
.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px;
}

.user-email {
  font-size: 0.8125rem;
  color: var(--text-muted);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.role-badge {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.role-badge.role-badge-admin {
  background: var(--primary-light);
  color: var(--primary);
}

@media (max-width: 640px) {
  .user-email {
    display: none;
  }
}

/* ==========================================================================
   Restricciones de UI por rol: los viewers solo pueden ver las tareas.
   La verdadera barrera de seguridad son las políticas RLS en Supabase
   (ver supabase/schema-auth.sql) — esto es solo para no mostrar controles
   que la API igual rechazaría.
   ========================================================================== */
body:not(.role-admin) .new-task-toggle,
body:not(.role-admin) .task-actions {
  display: none;
}

body:not(.role-admin) .task-toggle-checkbox {
  pointer-events: none;
  opacity: 0.55;
}

/* Encabezado — barra flotante con efecto de cristal */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 22px;
  background: var(--bg-header-glass);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 12px;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--primary-gradient);
  box-shadow: var(--shadow-primary);
}

.brand-text h1 {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.025em;
}

.subtitle {
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: -0.006em;
}

/* Botón circular de cambio de tema (claro/oscuro) */
.header-status {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
}

.theme-toggle:hover {
  background-color: var(--bg-secondary);
}

.theme-toggle:active {
  transform: scale(0.92);
}

.icon-moon {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: inline-flex;
}

/* Layout Principal (Grid responsive para dos columnas) */
.app-main {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Botón "Nueva tarea": vive en el header, a la izquierda del toggle de tema */
.new-task-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 16px 0 12px;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--primary-gradient);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 4px 14px -4px rgba(79, 70, 229, 0.5);
  transition: transform 0.15s var(--ease-smooth), box-shadow 0.15s var(--ease-smooth), filter 0.15s var(--ease-smooth);
}

.new-task-toggle:hover {
  filter: brightness(1.06);
  box-shadow: 0 6px 16px -4px rgba(79, 70, 229, 0.6);
}

.new-task-toggle:active {
  transform: scale(0.96);
}

.new-task-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  transition: transform 0.25s var(--ease-smooth);
}

.new-task-toggle[aria-expanded="true"] .new-task-toggle-icon {
  transform: rotate(45deg);
}

/* Modal del formulario de creación/edición: aparece por encima de todo
   (incluida la lista de tareas), centrado, con un fondo oscuro detrás. */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 72px 20px 40px;
  background: rgba(0, 0, 0, 0.55);
  overflow-y: auto;
  opacity: 1;
  transition: opacity 0.25s var(--ease-smooth), background-color 0.2s var(--ease-smooth);
}

.modal-backdrop.collapsed {
  opacity: 0;
  pointer-events: none;
}

body.modal-open {
  overflow: hidden;
}

.modal-panel {
  width: 100%;
  max-width: 520px;
  max-height: none;
  transform: translateY(0) scale(1);
  box-shadow: 0 24px 60px -12px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s var(--ease-smooth), background-color 0.2s var(--ease-smooth), border-color 0.2s var(--ease-smooth), color 0.2s var(--ease-smooth);
}

.modal-backdrop.collapsed .modal-panel {
  transform: translateY(-12px) scale(0.96);
}

/* Tarjetas (Cards) */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.card-header {
  margin-bottom: 22px;
}

.card-header h2 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.018em;
}

.card-description {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Formulario */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-main);
}

.required {
  color: var(--danger);
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--text-main);
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color 0.15s var(--ease-smooth), box-shadow 0.15s var(--ease-smooth), background-color 0.15s var(--ease-smooth);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  background-color: var(--bg-input-focus);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.form-control.input-error {
  border-color: var(--danger);
  background-color: var(--bg-input-error);
}

.form-control.input-error:focus {
  box-shadow: 0 0 0 4px rgba(244, 63, 94, 0.15);
}

.textarea {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  display: flex;
  gap: 12px;
}

.col-half {
  flex: 1;
}

@media (max-width: 420px) {
  .form-row {
    flex-direction: column;
  }
}

.field-error {
  display: block;
  font-size: 0.78rem;
  color: var(--danger);
  margin-top: 4px;
  min-height: 1.1em;
}

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: background-color 0.18s var(--ease-smooth), transform 0.12s var(--ease-smooth), box-shadow 0.18s var(--ease-smooth), filter 0.18s var(--ease-smooth);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  flex: 2;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-primary:active {
  filter: brightness(0.96);
}

.btn-secondary {
  background-color: var(--bg-secondary);
  color: var(--text-main);
  border: 1px solid transparent;
  flex: 1;
}

.btn-secondary:hover {
  background-color: var(--bg-secondary-hover);
}

/* Cabecera de la lista & Resumen */
.list-header-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 18px;
}

@media (min-width: 600px) {
  .list-header-wrap {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.tasks-counter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.stat {
  font-size: 0.8125rem;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.stat strong {
  color: var(--text-main);
  font-weight: 700;
}

.stat-completed strong {
  color: var(--success);
}

.stat-pending strong {
  color: var(--primary);
}

/* Barra de Filtros — control segmentado */
.filter-bar {
  display: inline-flex;
  gap: 2px;
  margin-bottom: 20px;
  margin-top: 16px;
  padding: 3px;
  background: var(--bg-secondary);
  border-radius: 11px;
}

.filter-btn {
  padding: 7px 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 0.2s var(--ease-smooth), color 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth);
}

.filter-btn:hover {
  color: var(--text-main);
}

.filter-btn.active {
  background-color: var(--bg-filter-active);
  color: var(--primary);
  box-shadow: 0 1px 3px rgba(20, 20, 31, 0.12), 0 1px 1px rgba(20, 20, 31, 0.06);
}

/* Lista de Tareas */
.task-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Elemento de Tarea (Tarjeta Individual) */
.task-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-item);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: box-shadow 0.2s var(--ease-smooth), transform 0.2s var(--ease-smooth), border-color 0.2s var(--ease-smooth);
  border-left: 3px solid var(--border-color);
}

.task-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Prioridades (Borde izquierdo) */
.task-item.priority-low {
  border-left-color: var(--priority-low-border);
}

.task-item.priority-medium {
  border-left-color: var(--priority-med-border);
}

.task-item.priority-high {
  border-left-color: var(--priority-high-border);
}

/* Estado Completada */
.task-item.completed {
  background-color: var(--bg-completed);
  opacity: 0.7;
  border-left-color: var(--border-completed);
}

.task-item.completed .task-title-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Pulso breve al marcar una tarea como completada, antes de que pase
   a la lista de "Completadas" (ver js/app.js: scheduleCompletedRemoval) */
@keyframes task-just-completed-pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  60% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.task-item.just-completed {
  animation: task-just-completed-pulse 0.7s var(--ease-smooth);
}

/* Desvanecido al retirarse de la vista actual (Pendientes) tras el pulso */
.task-item.leaving {
  opacity: 0;
  transform: scale(0.96) translateY(-4px);
  pointer-events: none;
  transition: opacity 0.25s var(--ease-smooth), transform 0.25s var(--ease-smooth);
}

/* Contenido de la tarea */
.task-content-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.task-checkbox-wrap {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1 1 200px;
}

.task-toggle-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--primary);
}

.task-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.task-title-text {
  font-size: 0.9688rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: -0.006em;
  word-break: break-word;
}

.task-desc-text {
  font-size: 0.8438rem;
  line-height: 1.5;
  color: var(--text-muted);
  word-break: break-word;
  white-space: pre-line;
}

/* Metadatos (fechas y prioridad) */
.task-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
}

.task-meta-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--text-muted);
}

.deadline-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.deadline-overdue {
  color: var(--danger);
  font-weight: 600;
}

/* Prioridad como indicador de punto + texto */
.badge-priority {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-priority::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-priority.priority-low {
  color: var(--priority-low-text);
}
.badge-priority.priority-low::before {
  background-color: var(--priority-low-border);
}

.badge-priority.priority-medium {
  color: var(--priority-med-text);
}
.badge-priority.priority-medium::before {
  background-color: var(--priority-med-border);
}

.badge-priority.priority-high {
  color: var(--priority-high-text);
}
.badge-priority.priority-high::before {
  background-color: var(--priority-high-border);
}

.badge-status {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.badge-status.status-pending {
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.badge-status.status-done {
  background: var(--priority-low-bg);
  color: var(--success);
}

/* Acciones de la tarea */
.task-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon-action {
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  padding: 6px 12px;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s var(--ease-smooth), color 0.15s var(--ease-smooth);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-edit {
  color: var(--primary);
  background-color: transparent;
}

.btn-edit:hover {
  background-color: var(--primary-light);
}

.btn-delete {
  color: var(--danger);
  background-color: transparent;
}

.btn-delete:hover {
  background-color: var(--danger);
  color: #ffffff;
}

/* Estado vacío */
.empty-state {
  text-align: center;
  padding: 56px 24px;
  color: var(--text-muted);
}

.empty-state.hidden {
  display: none;
}

.empty-icon {
  display: block;
  margin: 0 auto 14px;
  color: var(--primary);
  opacity: 0.55;
}

.empty-state h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.empty-state p {
  font-size: 0.875rem;
  max-width: 360px;
  margin: 0 auto;
}

/* Pie de página — fluye después del contenido, sin quedar anclado al viewport */
.app-footer {
  text-align: center;
  padding: 28px 16px 8px;
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-note {
  font-size: 0.75rem;
  margin-top: 4px;
}

.footer-note code {
  background-color: var(--bg-code);
  color: var(--text-main);
  padding: 2px 6px;
  border-radius: 5px;
}

/* ==========================================================================
   Accesibilidad: foco visible para navegación por teclado
   ========================================================================== */
.btn:focus-visible,
.filter-btn:focus-visible,
.btn-icon-action:focus-visible,
.theme-toggle:focus-visible,
.task-toggle-checkbox:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* Respeta la preferencia del usuario de reducir animaciones */
@media (prefers-reduced-motion: reduce) {
  .task-item,
  .btn,
  .filter-btn,
  .btn-icon-action,
  .form-control,
  .modal-backdrop,
  .modal-panel,
  .new-task-toggle-icon {
    transition: none;
  }

  .task-item:hover {
    transform: none;
  }

  .task-item.just-completed {
    animation: none;
  }
}