/* components.css — Componentes de UI (Tarea 5.2).
   header, hero, tarjetas de herramientas, dropzone, controles, botones,
   toasts, lista de progreso (batch), preview de metadatos y footer.
   Iconografía: SVG de línea con stroke: currentColor, sin emojis (Req 19.2, 19.3).
   Usa exclusivamente las variables de theme.css / base.css (sin colores
   hardcodeados que puenteen el theming).
   Requisitos: 4.1, 4.2, 4.3, 16.2, 16.3, 19.2, 19.3.

   Nota: el componente .theme-toggle vive en theme.css (sol/luna por tema).
*/

/* ---------------------------------------------------------------------------
   Iconos SVG de línea (Req 19.2)
   Toda la iconografía usa trazo (stroke) heredando el color de texto.
--------------------------------------------------------------------------- */
.icon {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  flex: none;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: middle;
}

/* ---------------------------------------------------------------------------
   Header
--------------------------------------------------------------------------- */
header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--container-pad);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
}

.brand:hover {
  text-decoration: none;
}

.brand svg,
.brand .brand-logo {
  width: 2rem;
  height: 2rem;
}

.brand-name {
  font-size: var(--fs-500);
  letter-spacing: 0.01em;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
}

.main-nav a {
  color: var(--color-text-muted);
  font-weight: 500;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.main-nav a:hover {
  color: var(--color-text);
  text-decoration: none;
  background-color: var(--color-surface-alt);
}

.header-controls {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  margin-inline-start: auto; /* empuja los controles al extremo */
}

.lang-select {
  display: inline-flex;
  align-items: center;
}

.lang-select select {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background-color: var(--color-surface);
  color: var(--color-text);
}

.lang-select select:hover {
  border-color: var(--color-border-strong);
}

/* Header mobile-first: la navegación pasa a una fila completa bajo la marca. */
@media (max-width: 599px) {
  .main-nav {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    gap: var(--space-1) var(--space-3);
  }
}

/* ---------------------------------------------------------------------------
   Hero
--------------------------------------------------------------------------- */
.hero {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-5);
}

.hero h1 {
  max-width: 20ch;
}

.hero p {
  max-width: 56ch;
  color: var(--color-text-muted);
  font-size: var(--fs-500);
}

/* La mascota como hero flotante (si se inyecta dentro de .hero). */
.hero .mascot,
.hero svg.rappy {
  width: clamp(120px, 28vw, 220px);
  height: auto;
}

/* ---------------------------------------------------------------------------
   Tarjetas de herramientas (home)
   Una columna en móvil; grid en tablet/escritorio (Req 4.1–4.3).
--------------------------------------------------------------------------- */
.tool-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 600px) {
  .tool-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .tool-cards {
    grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  }
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease,
    border-color 0.2s ease;
}

.tool-card:hover,
.tool-card:focus-within {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

/* Mejora progresiva: la tarjeta completa es activable con ratón (el enlace CTA
   sigue siendo el control accesible y el único tab stop). */
.tool-card--clickable {
  cursor: pointer;
}

.tool-card h2 {
  color: var(--color-text);
}

.tool-card p {
  color: var(--color-text-muted);
  flex: 1 1 auto;
}

.tool-card__cta {
  align-self: flex-start;
  margin-top: var(--space-2);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-primary);
  color: var(--color-primary-contrast);
  border-radius: 999px;
  font-weight: 600;
}

.tool-card__cta:hover {
  background-color: var(--color-primary-hover);
  text-decoration: none;
}

/* ---------------------------------------------------------------------------
   Herramienta (páginas HEIC / EXIF)
--------------------------------------------------------------------------- */
.tool {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  width: 100%;
  max-width: 46rem;
  margin-inline: auto;
}

/* Dropzone */
.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  min-height: 10rem;
  padding: var(--space-6) var(--space-5);
  text-align: center;
  color: var(--color-text-muted);
  background-color: var(--color-surface);
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease,
    color 0.2s ease;
}

.dropzone:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

/* Estado visual "arrastrando" (lo activa ui.js con la clase .is-dragging). */
.dropzone.is-dragging,
.dropzone.dragover {
  border-color: var(--color-primary);
  background-color: var(--color-surface-alt);
  color: var(--color-text);
}

.dropzone .icon {
  width: 2.25rem;
  height: 2.25rem;
  color: var(--color-primary);
}

/* Controles de la herramienta */
.tool-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-4);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 10rem;
}

.field > span {
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--color-text-muted);
}

.field select,
.field input[type="range"],
.field input[type="text"],
.field input[type="number"] {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.field input[type="range"] {
  padding: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Campo deshabilitado (p. ej. la calidad JPG cuando el formato es PNG).
   Lo activa el controlador HEIC con la clase .is-disabled. */
.field.is-disabled {
  opacity: 0.55;
}

.field.is-disabled input[type="range"] {
  cursor: not-allowed;
}

/* En móvil, los campos ocupan todo el ancho para seguir siendo usables. */
@media (max-width: 599px) {
  .tool-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .field {
    width: 100%;
  }
}

/* ---------------------------------------------------------------------------
   Botones
--------------------------------------------------------------------------- */
button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  min-height: 2.75rem; /* objetivo táctil cómodo */
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 999px;
  background-color: var(--color-primary);
  color: var(--color-primary-contrast);
  transition: background-color 0.2s ease, border-color 0.2s ease,
    opacity 0.2s ease;
}

button:hover,
.btn:hover {
  background-color: var(--color-primary-hover);
}

button:disabled,
.btn:disabled,
button[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Variante secundaria (p. ej. "Descargar todo"). */
.btn-secondary,
button.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover,
button.btn-secondary:hover {
  background-color: var(--color-surface-alt);
}

/* ---------------------------------------------------------------------------
   Toasts (role="status" / role="alert")
--------------------------------------------------------------------------- */
.toast-region {
  position: fixed;
  inset-block-end: var(--space-5);
  inset-inline-end: var(--space-5);
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: min(26rem, calc(100vw - 2 * var(--space-5)));
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-inline-start: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  pointer-events: auto;
}

.toast--success {
  border-inline-start-color: var(--color-success);
}

.toast--error {
  border-inline-start-color: var(--color-error);
}

.toast--info {
  border-inline-start-color: var(--color-accent);
}

.toast .icon {
  margin-top: 0.15rem;
}

.toast--success .icon {
  color: var(--color-success);
}

.toast--error .icon {
  color: var(--color-error);
}

/* ---------------------------------------------------------------------------
   Lista de progreso / batch
--------------------------------------------------------------------------- */
.progress-title,
.metadata-title {
  font-size: var(--fs-500);
  margin-top: var(--space-2);
}

/* Cabecera de la lista de progreso: título + contador de archivos. */
.progress-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
}

.progress-head .progress-title {
  margin-top: 0;
}

.batch-count {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  background-color: var(--color-surface-alt);
  color: var(--color-text-muted);
  font-size: var(--fs-300);
  font-weight: 600;
}

/* Botón de descarga dentro de una fila de la lista (variante compacta). */
.batch-item-download {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: var(--space-1);
  padding: var(--space-2) var(--space-4);
  min-height: 2.25rem;
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  font-size: var(--fs-300);
}

.batch-item-download:hover {
  background-color: var(--color-surface-alt);
}

.batch-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.batch-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "name status"
    "bar  bar";
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.batch-item__name {
  grid-area: name;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.batch-item__status {
  grid-area: status;
  font-size: var(--fs-300);
  color: var(--color-text-muted);
}

.batch-item--done .batch-item__status {
  color: var(--color-success);
}

.batch-item--error {
  border-color: var(--color-error);
}

.batch-item--error .batch-item__status {
  color: var(--color-error);
}

/* Barra de progreso */
.batch-item__bar,
.progress {
  grid-area: bar;
  width: 100%;
  height: 0.5rem;
  border-radius: 999px;
  background-color: var(--color-surface-alt);
  overflow: hidden;
}

.batch-item__bar-fill,
.progress__fill {
  display: block;
  height: 100%;
  width: 0;
  background-color: var(--color-primary);
  border-radius: inherit;
  transition: width 0.25s ease;
}

.batch-item--done .batch-item__bar-fill {
  background-color: var(--color-success);
}

.batch-item--error .batch-item__bar-fill {
  background-color: var(--color-error);
}

/* ---------------------------------------------------------------------------
   Preview de metadatos (EXIF)
--------------------------------------------------------------------------- */
.metadata-preview {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.metadata-card {
  padding: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.metadata-card h3 {
  margin-bottom: var(--space-2);
  overflow-wrap: anywhere;
}

.metadata-list {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(6rem, auto) 1fr;
  gap: var(--space-1) var(--space-4);
  font-size: var(--fs-300);
}

.metadata-list dt,
.metadata-list .metadata-key {
  color: var(--color-text-muted);
  font-weight: 600;
}

.metadata-list dd,
.metadata-list .metadata-value {
  margin: 0;
  overflow-wrap: anywhere;
}

/* Resalta la presencia de GPS (dato sensible). */
.metadata-gps {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  background-color: var(--color-surface-alt);
  color: var(--color-error);
  font-weight: 600;
  font-size: var(--fs-300);
}

.metadata-gps .icon {
  color: var(--color-error);
}

/* ---------------------------------------------------------------------------
   Contenido (instrucciones + FAQ) — páginas HEIC / EXIF
   Alinea el ancho y el margen con la sección .tool (upload) para una lectura
   ordenada y consistente. Los pasos y las preguntas frecuentes se presentan
   como tarjetas legibles en lugar de texto a todo lo ancho.
--------------------------------------------------------------------------- */
.content {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  width: 100%;
  max-width: 46rem;        /* mismo ancho que .tool */
  margin-inline: auto;     /* mismo centrado/margen que .tool */
}

.content h2 {
  margin-top: var(--space-2);
}

.content-desc {
  color: var(--color-text-muted);
  font-size: var(--fs-500);
}

/* Pasos de uso: lista numerada con buena separación y jerarquía clara. */
.steps {
  list-style: none;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.steps li {
  position: relative;
  counter-increment: step;
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  padding-inline-start: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.steps li::before {
  content: counter(step);
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background-color: var(--color-primary);
  color: var(--color-primary-contrast);
  font-weight: 700;
  font-size: var(--fs-400);
  line-height: 1;
}

/* Preguntas frecuentes: cada par pregunta/respuesta como una tarjeta clara.
   La tarjeta (borde/fondo/radio) la aporta .faq-item, que envuelve el <dt> y
   el <dd> para que ambos queden dentro de una única caja. */
.faq {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.faq-item dt {
  font-weight: 700;
  color: var(--color-text);
}

.faq-item dd {
  margin: var(--space-2) 0 0;
  color: var(--color-text-muted);
}

.content-privacy {
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--fs-300);
}

/* ---------------------------------------------------------------------------
   Página de error (404)
--------------------------------------------------------------------------- */
.error-page {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-7);
  max-width: 46rem;
  margin-inline: auto;
}

.error-code {
  font-size: clamp(4rem, 12vw, 7rem);
  font-weight: 800;
  line-height: 1;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.error-lead {
  color: var(--color-text-muted);
  font-size: var(--fs-500);
  max-width: 48ch;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3) var(--space-4);
  margin-top: var(--space-2);
}

.error-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-primary);
  color: var(--color-primary-contrast);
  border-radius: 999px;
  font-weight: 600;
}

.error-cta:hover {
  background-color: var(--color-primary-hover);
  text-decoration: none;
}

.error-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  color: var(--color-text);
  font-weight: 600;
}

.error-link:hover {
  background-color: var(--color-surface-alt);
  text-decoration: none;
}

/* ---------------------------------------------------------------------------
   Banner de actualización del service worker
   Aviso visible cuando hay una versión nueva en espera (sw-register.js).
--------------------------------------------------------------------------- */
.sw-update-banner {
  position: fixed;
  inset-block-end: var(--space-5);
  inset-inline: var(--space-5);
  z-index: 70;
  margin-inline: auto;
  max-width: 32rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3) var(--space-4);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  border-inline-start: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.sw-update-banner__text {
  font-weight: 600;
  flex: 1 1 14rem;
}

.sw-update-banner__actions {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.sw-update-banner__update {
  padding: var(--space-2) var(--space-4);
  min-height: 2.25rem;
  background-color: var(--color-primary);
  color: var(--color-primary-contrast);
}

.sw-update-banner__update:hover {
  background-color: var(--color-primary-hover);
}

.sw-update-banner__dismiss {
  padding: var(--space-2) var(--space-4);
  min-height: 2.25rem;
  background-color: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.sw-update-banner__dismiss:hover {
  background-color: var(--color-surface-alt);
}

/* ---------------------------------------------------------------------------
   Footer
--------------------------------------------------------------------------- */
footer {
  margin-top: auto;
  padding: var(--space-6) var(--container-pad);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-privacy {
  color: var(--color-text);
  font-weight: 600;
}

.footer-bug-note {
  color: var(--color-text-muted);
  font-size: var(--fs-300);
  max-width: 48ch;
  margin-inline: auto;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-4);
}

.footer-bug {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  color: var(--color-text);
  font-weight: 600;
  font-size: var(--fs-300);
}

.footer-bug:hover {
  background-color: var(--color-surface-alt);
  text-decoration: none;
}

.footer-copyright {
  color: var(--color-text-muted);
  font-size: var(--fs-300);
}