/* ------------------------------------------------------------------
 * Layout de pantalla: columna centrada, contenido con scroll y pie
 * fijo abajo respetando las áreas seguras (notch y barra inferior).
 * ------------------------------------------------------------------ */
.screen {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: max(var(--gutter), env(safe-area-inset-left)) max(var(--gutter), env(safe-area-inset-right));
}

.screen__body {
  flex: 1 0 auto;
  padding-top: max(var(--space-10), env(safe-area-inset-top));
  padding-bottom: var(--space-3);
}

.screen__footer {
  position: sticky;
  bottom: 0;
  z-index: 1;
  margin-inline: calc(-1 * var(--space-2));
  padding: var(--space-3) var(--space-2) max(var(--space-5), env(safe-area-inset-bottom));
  background: var(--color-bg);
}

/* Hay contenido debajo del pie (pantallas bajas): un filo fino, de borde a borde de la
 * pantalla, indica que la página sigue. */
.screen__footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 100vw;
  height: 1px;
  background: var(--color-border);
  opacity: 0;
  transform: translateX(-50%);
  transition: opacity 160ms linear;
}

.screen__footer.is-covering::before {
  opacity: 1;
}

/* ------------------------------------------------------------------
 * Botón principal: píldora azul noche a ancho completo.
 * ------------------------------------------------------------------ */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  width: 100%;
  min-height: var(--button-h);
  padding: 0 var(--space-6);
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--color-primary-bg);
  color: var(--color-primary-fg);
  font: inherit;
  font-size: var(--text-button);
  font-weight: var(--weight-bold);
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  /* El cambio de atenuado a activo se funde: es el momento en que el formulario queda listo. */
  transition:
    transform 160ms var(--vt-ease),
    opacity 160ms var(--vt-ease),
    background-color 220ms var(--vt-ease),
    color 220ms var(--vt-ease);
}

.btn-primary .icon {
  width: 22px;
  height: 22px;
  stroke-width: 2.25;
  transition: transform 200ms var(--vt-ease);
}

@media (hover: hover) {
  .btn-primary:hover {
    opacity: 0.92;
  }

  .btn-primary:hover .icon {
    transform: translateX(3px);
  }
}

.btn-primary:active {
  transform: scale(0.985);
}

.btn-primary:focus-visible {
  outline-offset: 4px;
}

/* ------------------------------------------------------------------
 * Tarjeta y lista de características (ícono de línea + texto).
 * ------------------------------------------------------------------ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.feature-list {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-6);
}

.feature-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  min-height: 56px;
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  line-height: 1.3;
}

.feature-list__item .icon {
  flex: none;
  width: var(--icon-size);
  height: var(--icon-size);
}

.icon {
  fill: none;
  stroke: currentColor;
  stroke-width: var(--icon-stroke);
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ------------------------------------------------------------------
 * Logos: espacios configurables desde js/config.js.
 * ------------------------------------------------------------------ */
.logo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  min-height: var(--logo-max-h);
}

.logo {
  display: block;
  flex: 0 1 auto;
  min-width: 0;
  max-width: 40%;
  height: auto;
  max-height: var(--logo-h, var(--logo-max-h));
  object-fit: contain;
  object-position: left center;
}

.logo-row > .logo:last-child:not(:first-child) {
  object-position: right center;
}

.logo--placeholder {
  width: var(--logo-h, var(--logo-max-h));
  height: var(--logo-h, var(--logo-max-h));
  border-radius: var(--radius-logo);
  background: var(--color-placeholder);
}

/* Botón atenuado (formulario incompleto) y en envío. */
.btn-primary[aria-disabled="true"],
.btn-primary:disabled {
  background: var(--color-primary-bg-disabled);
  color: var(--color-primary-fg-disabled);
  cursor: not-allowed;
}

@media (hover: hover) {
  .btn-primary[aria-disabled="true"]:hover,
  .btn-primary:disabled:hover {
    opacity: 1;
  }

  .btn-primary[aria-disabled="true"]:hover .icon,
  .btn-primary:disabled:hover .icon {
    transform: none;
  }
}

.btn-primary[aria-disabled="true"]:active,
.btn-primary:disabled:active {
  transform: none;
}

/* Botón de marca (login, preguntas): píldora con el degradado del logo, un brillo sutil en la
 * mitad superior y sombras de color hacia los extremos. El degradado va en una capa (::after)
 * para que el paso de atenuado a activo se funda. Solo dentro de .brand-surface (tokens). */
.btn-primary--brand {
  position: relative;
  isolation: isolate;
  background: transparent;
  color: var(--brand-on-gradient);
  box-shadow:
    -14px 12px 30px -14px var(--brand-magenta-glow),
    14px 12px 30px -14px var(--brand-blue-glow);
  transition:
    transform 160ms var(--vt-ease),
    background-color 220ms var(--vt-ease),
    color 220ms var(--vt-ease),
    box-shadow 220ms var(--vt-ease);
}

.btn-primary--brand::before,
.btn-primary--brand::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  transition: opacity 220ms var(--vt-ease);
}

.btn-primary--brand::after {
  z-index: -2;
  background: linear-gradient(90deg, var(--brand-magenta), var(--brand-violet) 52%, var(--brand-blue));
}

.btn-primary--brand::before {
  z-index: -1;
  background: linear-gradient(180deg, var(--brand-sheen), transparent 55%);
}

.btn-primary--brand:focus-visible {
  outline-color: var(--brand-sky);
}

/* Atenuado (falta elegir o completar algo): vidrio con borde y texto secundario. */
.btn-primary--brand[aria-disabled="true"] {
  background: var(--brand-glass);
  color: var(--brand-text-muted);
  box-shadow: inset 0 0 0 1px var(--brand-glass-border-strong);
}

.btn-primary--brand[aria-disabled="true"]::before,
.btn-primary--brand[aria-disabled="true"]::after {
  opacity: 0;
}

/* En envío conserva el degradado, atenuado (no el vidrio del botón incompleto). */
.btn-primary--brand:disabled {
  background: transparent;
  color: var(--brand-on-gradient);
  opacity: 0.7;
  cursor: progress;
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary--brand,
  .btn-primary--brand::before,
  .btn-primary--brand::after {
    transition: none;
  }
}

.spinner {
  width: 20px;
  height: 20px;
  animation: spin 800ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Con el teclado virtual abierto el pie deja de ser fijo: no tapa los campos. */
.keyboard-open .screen__footer {
  position: static;
}

.keyboard-open .screen__footer::before {
  display: none;
}

/* ------------------------------------------------------------------
 * Barra superior: volver + progreso del paso.
 * ------------------------------------------------------------------ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--tap-min);
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: var(--tap-min);
  height: var(--tap-min);
  margin-left: calc(-1 * var(--space-3));
  border-radius: var(--radius-pill);
  color: var(--color-text);
}

.icon-button .icon {
  width: 26px;
  height: 26px;
  stroke-width: 2;
}

/* Lado derecho de la barra superior: progreso del paso + botón de tema. */
.topbar__end {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.topbar--end {
  justify-content: flex-end;
}

/* Switch de tema (js/theme.js): encendido = modo oscuro. El botón mide 48 × 48 px para el
 * toque; dentro, una pista de 44 × 26 px con la perilla, que lleva el sol (claro) o la luna
 * (oscuro). Solo se animan transform y opacity. */
.theme-toggle {
  display: inline-grid;
  flex: none;
  place-items: center;
  min-width: var(--tap-min);
  min-height: var(--tap-min);
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.theme-toggle__track {
  position: relative;
  display: block;
  width: 44px;
  height: 26px;
  border: 1.5px solid var(--switch-track-border);
  border-radius: var(--radius-pill);
  background: var(--switch-track-bg);
  transition: background-color 200ms var(--vt-ease);
}

.theme-toggle__thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  display: grid;
  place-items: center;
  width: 19px;
  height: 19px;
  border-radius: var(--radius-pill);
  background: var(--switch-thumb-bg);
  color: var(--switch-icon);
  transition: transform 240ms var(--vt-ease);
}

.theme-toggle[aria-checked="true"] .theme-toggle__thumb {
  transform: translateX(18px);
}

.theme-toggle__thumb .icon {
  grid-area: 1 / 1;
  width: 13px;
  height: 13px;
  stroke-width: 2.25;
  transition:
    opacity 200ms var(--vt-ease),
    transform 240ms var(--vt-ease);
}

.theme-toggle__moon,
.theme-toggle[aria-checked="true"] .theme-toggle__sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.6);
}

.theme-toggle[aria-checked="true"] .theme-toggle__moon {
  opacity: 1;
  transform: none;
}

@media (hover: hover) {
  .theme-toggle:hover {
    background: var(--switch-hover);
  }
}

.theme-toggle:focus-visible {
  outline-offset: 0;
}

@media (prefers-reduced-motion: reduce) {
  .theme-toggle__track,
  .theme-toggle__thumb,
  .theme-toggle__thumb .icon {
    transition: none;
  }
}

.step-progress {
  display: grid;
  justify-items: end;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-small);
  font-variant-numeric: tabular-nums;
}

.step-progress__rail {
  width: 96px;
  height: 5px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
  overflow: hidden;
}

.step-progress__fill {
  height: 100%;
  border-radius: inherit;
  background: var(--color-text);
}

/* Cuatro puntos con los colores de los estilos (decorativos). */
.style-dots {
  display: flex;
  gap: 10px;
}

.style-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.style-dots span:nth-child(1) { background: var(--style-resolutivo); }
.style-dots span:nth-child(2) { background: var(--style-expresivo); }
.style-dots span:nth-child(3) { background: var(--style-tranquilo); }
.style-dots span:nth-child(4) { background: var(--style-analitico); }

/* ------------------------------------------------------------------
 * Campos de formulario.
 * ------------------------------------------------------------------ */
.field {
  display: grid;
  gap: var(--space-2);
}

.field__label {
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  line-height: 1.3;
}

.field__control,
.phone-input {
  width: 100%;
  min-height: var(--field-h);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-field);
  background: var(--color-surface);
  color: var(--color-text);
  /* La sombra interna suma 1 px al borde al enfocar, sin mover el contenido. */
  transition: border-color 120ms linear, box-shadow 120ms linear;
}

.field__control {
  padding: 0 var(--space-4);
  font: inherit;
  font-size: var(--text-body);
  -webkit-appearance: none;
  appearance: none;
}

.field__control::placeholder,
.phone-input__number::placeholder {
  color: var(--color-text-muted);
  opacity: 1;
}

.field__control:focus,
.phone-input:focus-within {
  border-color: var(--color-text);
  box-shadow: inset 0 0 0 1px var(--color-text);
  outline: none;
}

.field__control[aria-invalid="true"],
.phone-input:has([aria-invalid="true"]) {
  border-color: var(--color-error);
}

.field__control[aria-invalid="true"]:focus,
.phone-input:has([aria-invalid="true"]):focus-within {
  box-shadow: inset 0 0 0 1px var(--color-error);
}

/* Campo con ícono a la izquierda y, opcional, un botón a la derecha (p. ej. ver contraseña). */
.field__box {
  position: relative;
}

.field__box .field__control {
  padding-left: calc(var(--space-4) + 22px + var(--space-3));
}

.field__box:has(.field__action) .field__control {
  padding-right: calc(var(--tap-min) + var(--space-1));
}

.field__icon {
  position: absolute;
  top: 50%;
  left: var(--space-4);
  width: 22px;
  height: 22px;
  color: var(--color-text);
  transform: translateY(-50%);
  pointer-events: none;
}

.field__action {
  position: absolute;
  top: 50%;
  right: 2px;
  display: grid;
  place-items: center;
  width: var(--tap-min);
  height: var(--tap-min);
  padding: 0;
  border: 0;
  border-radius: var(--radius-field);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transform: translateY(-50%);
  touch-action: manipulation;
}

.field__action .icon {
  width: 24px;
  height: 24px;
}

.field__action:focus-visible {
  outline-offset: -4px;
}

.field__error {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  color: var(--color-error);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  line-height: var(--text-small-leading);
}

.field__error:empty {
  display: none;
}

/* Celular: indicativo de país + separador + número, en un solo campo. */
.phone-input {
  display: flex;
  align-items: stretch;
}

.phone-input__prefix {
  position: relative;
  display: flex;
  align-items: center;
  flex: none;
  min-width: 76px;
  padding: 0 var(--space-3) 0 var(--space-5);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
}

.phone-input__prefix .icon {
  width: 12px;
  height: 12px;
  margin-left: 6px;
  color: var(--color-text-muted);
  stroke-width: 2;
}

/* El select nativo cubre el indicativo visible: abre la lista del sistema al tocarlo. */
.phone-input__select {
  position: absolute;
  inset: 0;
  width: 100%;
  opacity: 0;
  /* 16 px evita que iOS haga zoom al abrir el selector. */
  font-size: var(--text-label);
  cursor: pointer;
}

.phone-input__divider {
  align-self: center;
  width: 1px;
  height: 28px;
  background: var(--color-border);
}

.phone-input__number {
  flex: 1;
  min-width: 0;
  padding: 0 var(--space-4);
  border: 0;
  border-radius: 0 var(--radius-field) var(--radius-field) 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: var(--text-body);
  outline: none;
}

/* ------------------------------------------------------------------
 * Casilla de consentimiento.
 * ------------------------------------------------------------------ */
.checkbox-row {
  display: grid;
  grid-template-columns: var(--checkbox-size) 1fr;
  gap: var(--space-4);
  align-items: start;
  min-height: var(--tap-min);
  padding-block: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-small);
  line-height: var(--text-small-leading);
}

/* Casilla: la caja visible es el span; el input real (invisible) cubre un área de 48 px. */
.checkbox {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--checkbox-size);
  height: var(--checkbox-size);
  border: 1.5px solid var(--color-text-muted);
  border-radius: var(--radius-checkbox);
  background: var(--color-surface);
  color: var(--color-primary-fg);
  transition: background-color 120ms linear, border-color 120ms linear;
}

.checkbox__input {
  position: absolute;
  inset: -12px;
  width: auto;
  height: auto;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.checkbox__check {
  width: 16px;
  height: 16px;
  stroke-width: 2.5;
  opacity: 0;
}

.checkbox:has(:checked) {
  border-color: var(--color-primary-bg);
  background: var(--color-primary-bg);
}

.checkbox:has(:checked) .checkbox__check {
  opacity: 1;
}

.checkbox:has(:focus-visible) {
  outline: var(--focus-ring) solid var(--color-focus);
  outline-offset: var(--focus-offset);
}

.checkbox:has([aria-invalid="true"]) {
  border-color: var(--color-error);
}

.checkbox-row label {
  cursor: pointer;
}

.checkbox-row .field__error {
  grid-column: 2;
}

.link-button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--color-text);
  font: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  cursor: pointer;
}

/* ------------------------------------------------------------------
 * Diálogo (texto legal).
 * ------------------------------------------------------------------ */
.dialog {
  /* El reset global quita el margin: auto nativo que centra el diálogo modal. */
  margin: auto;
  width: min(calc(100% - 2 * var(--gutter)), 440px);
  max-height: min(80dvh, 640px);
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-dialog);
}

.dialog::backdrop {
  background: var(--color-backdrop);
}

.dialog__body {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-6);
}

.dialog__title {
  font-size: var(--text-heading);
  font-weight: var(--weight-bold);
  line-height: 1.25;
}

.dialog__text {
  color: var(--color-text-muted);
  white-space: pre-line;
}

.dialog .btn-primary {
  margin-top: var(--space-2);
}

/* ------------------------------------------------------------------
 * Aviso de error del servidor (role="alert").
 * ------------------------------------------------------------------ */
.alert {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
  border: 1px solid var(--color-error);
  border-radius: var(--radius-field);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-small);
  line-height: var(--text-small-leading);
}

.alert[hidden] {
  display: none;
}

.alert__text {
  flex: 1;
}

/* Sin botón de acción visible, el texto respira igual a los dos lados. */
.alert:not(:has(.alert__action:not([hidden]))) {
  padding-right: var(--space-4);
}

.alert__action:focus-visible {
  outline-offset: -3px;
}

.alert__action {
  flex: none;
  min-height: var(--tap-min);
  padding: 0 var(--space-4);
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-text);
  font: inherit;
  font-weight: var(--weight-bold);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  cursor: pointer;
}

/* ------------------------------------------------------------------
 * Progreso del cuestionario: barra a todo el ancho (n de total).
 * ------------------------------------------------------------------ */
.progress-bar {
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  border-radius: inherit;
  background: var(--color-text);
}

.step-count {
  color: var(--color-text-muted);
  font-size: var(--text-small);
  font-variant-numeric: tabular-nums;
}

/* Etiqueta sobre la pregunta ("PREGUNTA 3"), fijada por el boceto. */
.eyebrow {
  color: var(--color-text-muted);
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-medium);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ------------------------------------------------------------------
 * Opción de respuesta: tarjeta con radio nativo oculto y círculo propio.
 * ------------------------------------------------------------------ */
.option-list {
  display: grid;
  gap: var(--space-3);
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.option-card {
  position: relative;
  display: grid;
  grid-template-columns: var(--checkbox-size) 1fr;
  gap: var(--space-4);
  align-items: center;
  min-height: 64px;
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  font-size: var(--text-body);
  line-height: 1.4;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 160ms var(--vt-ease), border-color 160ms var(--vt-ease), box-shadow 160ms var(--vt-ease);
}

.option-card__input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.radio-dot {
  display: grid;
  place-items: center;
  width: var(--checkbox-size);
  height: var(--checkbox-size);
  border: 1.5px solid var(--color-text-muted);
  border-radius: 50%;
  background: var(--color-surface);
}

.radio-dot::after {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-text);
  transform: scale(0);
  transition: transform 160ms var(--vt-ease);
}

.option-card:has(:checked) {
  border-color: var(--color-text);
  background: var(--color-selected-bg);
  /* El borde pasa a 2 px sin mover el contenido. */
  box-shadow: inset 0 0 0 1px var(--color-text);
}

.option-card:has(:checked) .radio-dot {
  border-color: var(--color-text);
  border-width: 2px;
}

.option-card:has(:checked) .radio-dot::after {
  transform: scale(1);
}

.option-card:has(:focus-visible) {
  outline: var(--focus-ring) solid var(--color-focus);
  outline-offset: var(--focus-offset);
}

@media (hover: hover) {
  .option-card:hover:not(:has(:checked)) {
    border-color: var(--color-text-muted);
  }
}

.option-list:disabled .option-card {
  cursor: default;
}

/* Enlace de texto con ícono (p. ej. "Volver a la pregunta anterior"). */
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--tap-min);
  padding: 0 var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-body);
  text-decoration: none;
}

.text-link .icon {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

@media (hover: hover) {
  .text-link:hover {
    color: var(--color-text);
  }
}

/* ------------------------------------------------------------------
 * Tono de un estilo: fija los colores de acento según la letra (A-D).
 * ------------------------------------------------------------------ */
.tone-a { --accent: var(--style-resolutivo); --accent-soft: var(--style-resolutivo-soft); --accent-ink: var(--style-resolutivo-ink); }
.tone-b { --accent: var(--style-expresivo); --accent-soft: var(--style-expresivo-soft); --accent-ink: var(--style-expresivo-ink); }
.tone-c { --accent: var(--style-tranquilo); --accent-soft: var(--style-tranquilo-soft); --accent-ink: var(--style-tranquilo-ink); }
.tone-d { --accent: var(--style-analitico); --accent-soft: var(--style-analitico-soft); --accent-ink: var(--style-analitico-ink); }

/* Consejo destacado: tarjeta blanca con borde izquierdo del color del estilo (fijado por el boceto). */
.callout {
  padding: var(--space-5) var(--space-6);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.callout__title {
  color: var(--accent-ink);
  font-size: var(--text-label);
  font-weight: var(--weight-bold);
  line-height: 1.3;
}

.callout__text {
  margin-top: var(--space-2);
  font-size: var(--text-body);
  line-height: 1.5;
}

/* ------------------------------------------------------------------
 * Superficie de marca: encabezado, aro de degradado y avatar
 * (inicio y detalle de un test)
 * ------------------------------------------------------------------ */

/* Encabezado: logo a la izquierda; switch de tema y avatar a la derecha. */
.brand-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--tap-min);
}

.brand-header .logo {
  width: 110px;
  max-width: none;
  height: auto;
  max-height: none;
}

.brand-header__end {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

@media (max-width: 359px) {
  .brand-header .logo {
    width: 92px;
  }
}

/* ------------------------------------------------------------------
 * Menú de navegación del encabezado (js/components/accordion.js): el botón va a la derecha del
 * switch de tema y abre un desplegable con Inicio, Buscar y Perfil.
 * ------------------------------------------------------------------ */
.accordion {
  position: relative;
}

.accordion__button {
  display: grid;
  place-items: center;
  width: var(--tap-min);
  height: var(--tap-min);
  padding: 0;
  border: 1px solid var(--brand-glass-border);
  border-radius: var(--radius-pill);
  background: var(--brand-glass);
  color: var(--brand-text);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: border-color 160ms var(--vt-ease), background-color 160ms var(--vt-ease);
}

@media (hover: hover) {
  .accordion__button:hover {
    border-color: var(--brand-glass-border-strong);
  }
}

.accordion__button:focus-visible {
  outline: 2px solid var(--brand-sky);
  outline-offset: 2px;
}

.accordion__icon {
  width: 22px;
  height: 22px;
  stroke-width: 1.9;
}

.accordion__panel {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  z-index: 10;
  min-width: 190px;
  padding: var(--space-1);
  border: 1px solid var(--brand-glass-border);
  border-radius: var(--radius-card);
  background: var(--brand-elevated);
  box-shadow: var(--shadow-dialog);
}

.accordion__panel[hidden] {
  display: none;
}

@media (prefers-reduced-motion: no-preference) {
  .accordion__panel {
    animation: accordion-in 160ms var(--vt-ease);
  }
}

@keyframes accordion-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

.accordion__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: var(--tap-min);
  padding: 0 var(--space-3);
  border-radius: var(--radius-field);
  color: var(--brand-text);
  font-size: 0.9375rem;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.accordion__item[aria-current="page"] {
  background: var(--tab-bar-active-bg);
  color: var(--brand-violet);
  font-weight: var(--weight-semibold);
}

@media (hover: hover) {
  .accordion__item:hover {
    background: var(--brand-link-bg);
  }
}

.accordion__item:focus-visible {
  outline: 2px solid var(--brand-sky);
  outline-offset: -2px;
}

.accordion__item-icon {
  width: 20px;
  height: 20px;
  color: currentColor;
}

/* Aro de degradado (js/components/gradient-ring.js): ocupa su contenedor y gira sobre su centro.
 * El brillo es el mismo trazo, más ancho y tenue (sin filter): --ring-glow-width lo ajusta cada
 * uso; la opacidad sigue el tema. */
.gradient-ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.gradient-ring circle {
  fill: none;
}

.gradient-ring__glow {
  stroke-width: var(--ring-glow-width, 7);
  opacity: var(--brand-ring-glow-opacity);
}

/* Avatar (js/components/avatar.js): círculo gris con el ícono de persona. No hay foto de perfil. */
.avatar {
  position: relative;
  display: grid;
  flex: none;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  background: var(--avatar-bg);
  color: var(--avatar-icon);
  box-shadow: inset 0 0 0 1px var(--avatar-border);
}

.brand-ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform-origin: 50% 50%;
  pointer-events: none;
}

.brand-ring circle {
  fill: none;
  stroke-width: 1.5;
}

.avatar__icon {
  width: 20px;
  height: 20px;
  stroke-width: 1.6;
}