/* ==========================================================================
   Grupo WF · Visualizador de apresentações
   Complementa styles.css (tokens, botões, toast e rodapé vêm de lá)
   ========================================================================== */

:root {
  --viewer-bg: #f3f5f8;
  --viewer-bar-height: 3.75rem;
  --page-ratio: 1.4142;
}

html {
  scroll-padding-top: calc(var(--viewer-bar-height) + env(safe-area-inset-top) + 1rem);
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

.viewer {
  background: var(--viewer-bg);
}

/* ---------- Barra superior ---------- */
.viewer-bar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: calc(var(--viewer-bar-height) + env(safe-area-inset-top));
  padding:
    env(safe-area-inset-top)
    max(0.5rem, env(safe-area-inset-right))
    0
    max(0.5rem, env(safe-area-inset-left));
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.88);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
}

.viewer-bar__heading {
  flex: 1;
  min-width: 0;
}

.viewer-bar__title {
  overflow: hidden;
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.viewer-bar__meta {
  color: var(--text-subtle);
  font-size: 0.75rem;
  line-height: 1.3;
}

.viewer-bar__actions {
  display: flex;
  gap: 0.125rem;
}

.viewer-bar__actions[hidden] {
  display: none;
}

/* Botão "Tela cheia": ícone no celular, pílula com texto em telas maiores */
.bar-button {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  gap: 0.4375rem;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-subtle);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    background-color var(--duration) var(--ease-out),
    color var(--duration) var(--ease-out),
    transform var(--duration) var(--ease-out);
}

.bar-button:active {
  transform: scale(0.96);
}

.bar-button__label {
  display: none;
}

@media (min-width: 40rem) {
  .bar-button {
    height: 2.375rem;
    margin-right: 0.375rem;
    padding: 0 1rem;
    background: var(--wf-graphite);
    color: #ffffff;
  }

  .bar-button__label {
    display: inline;
  }
}

@media (hover: hover) and (pointer: fine) {
  .bar-button:hover {
    background: var(--surface-hover);
    color: var(--text);
  }
}

@media (hover: hover) and (pointer: fine) and (min-width: 40rem) {
  .bar-button:hover {
    background: #243343;
    color: #ffffff;
  }
}

/* ---------- Páginas ---------- */
.viewer-main {
  padding:
    1rem
    max(1rem, env(safe-area-inset-right))
    max(1.5rem, env(safe-area-inset-bottom))
    max(1rem, env(safe-area-inset-left));
}

.slides {
  display: grid;
  gap: 1rem;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  /* Em telas largas, cada página cabe inteira na altura da janela */
  width: min(100%, 72rem, calc((100vh - var(--viewer-bar-height) - 2.5rem) * var(--page-ratio)));
  width: min(100%, 72rem, calc((100dvh - var(--viewer-bar-height) - 2.5rem) * var(--page-ratio)));
}

.slide__frame {
  position: relative;
  aspect-ratio: var(--page-ratio);
  overflow: hidden;
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: 0 0 0 1px var(--border), 0 14px 32px -22px rgba(22, 34, 46, 0.35);
}

.slide__frame img {
  width: 100%;
  height: 100%;
}

.js .slide__frame {
  cursor: zoom-in;
}

/* Áreas clicáveis herdadas dos links do PDF */
.hotspot {
  position: absolute;
  border-radius: 0.25rem;
  transition:
    background-color var(--duration) var(--ease-out),
    box-shadow var(--duration) var(--ease-out);
}

.hotspot:focus-visible {
  outline: 2px solid var(--wf-blue);
  outline-offset: 1px;
}

@media (hover: hover) and (pointer: fine) {
  .hotspot:hover {
    background: rgba(11, 98, 255, 0.1);
    box-shadow: inset 0 0 0 1.5px rgba(11, 98, 255, 0.55);
  }

  .viewer-end__link:hover {
    color: var(--wf-blue);
  }
}

/* ---------- Indicador de página ---------- */
.page-indicator {
  position: fixed;
  left: 50%;
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 30;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(22, 34, 46, 0.86);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%);
  transition: opacity var(--duration) var(--ease-out);
}

.page-indicator.is-visible {
  opacity: 1;
}

.viewer .toast {
  bottom: calc(max(1rem, env(safe-area-inset-bottom)) + 2.75rem);
}

/* ---------- Final e estados ---------- */
.viewer-end {
  display: grid;
  justify-items: center;
  gap: 0.875rem;
  max-width: 22rem;
  margin: 3rem auto 0;
  text-align: center;
}

.viewer-end[hidden],
.viewer-status[hidden] {
  display: none;
}

.viewer-end__title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  text-wrap: balance;
}

.viewer-end .button {
  width: 100%;
}

.viewer-end__link {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  transition: color var(--duration) var(--ease-out);
}

.viewer-status {
  display: grid;
  justify-items: center;
  gap: 0.75rem;
  padding: 4rem 1rem;
  color: var(--text-muted);
  text-align: center;
}

.viewer-status a {
  color: var(--wf-blue);
  font-weight: 600;
}

/* ---------- Modo tela cheia ---------- */
.is-presenting,
.is-presenting body {
  overflow: hidden;
}

.presenter {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background: #0b1016;
  color: #ffffff;
}

.presenter[hidden] {
  display: none;
}

.presenter:focus {
  outline: none;
}

.presenter__stage {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  touch-action: pinch-zoom;
  user-select: none;
  -webkit-user-select: none;
}

/* A página cabe inteira na tela, seja qual for a proporção */
.presenter__slide {
  position: relative;
  width: min(100vw, calc(100vh * var(--page-ratio)));
  width: min(100vw, calc(100dvh * var(--page-ratio)));
  aspect-ratio: var(--page-ratio);
}

.presenter__image {
  display: block;
  width: 100%;
  height: 100%;
  -webkit-user-drag: none;
}

.presenter__control {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: rgba(11, 16, 22, 0.55);
  color: #ffffff;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition:
    opacity 300ms var(--ease-out),
    background-color var(--duration) var(--ease-out),
    transform var(--duration) var(--ease-out);
}

.presenter__control .icon {
  width: 1.375rem;
  height: 1.375rem;
}

.presenter__control:active {
  transform: scale(0.92);
}

.presenter__control:disabled {
  opacity: 0 !important;
  pointer-events: none;
}

.presenter__control--previous {
  left: max(0.75rem, env(safe-area-inset-left));
  top: 50%;
  margin-top: -1.5rem;
}

.presenter__control--next {
  right: max(0.75rem, env(safe-area-inset-right));
  top: 50%;
  margin-top: -1.5rem;
}

.presenter__control--close {
  top: max(0.75rem, env(safe-area-inset-top));
  right: max(0.75rem, env(safe-area-inset-right));
}

.presenter__counter {
  position: absolute;
  bottom: max(0.75rem, env(safe-area-inset-bottom));
  left: 50%;
  z-index: 2;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(11, 16, 22, 0.55);
  font-size: 0.75rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  transform: translateX(-50%);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: opacity 300ms var(--ease-out);
}

.presenter__hint {
  display: none;
  position: absolute;
  top: max(1.25rem, env(safe-area-inset-top));
  left: 1rem;
  z-index: 2;
  color: #c3ccd6;
  font-size: 0.8125rem;
  font-weight: 500;
}

/* Celular em pé: sugere girar (no Android a tela já gira sozinha) */
@media (orientation: portrait) and (max-width: 40rem) {
  .presenter__hint {
    display: block;
  }
}

/* Mouse parado: esconde os controles e o cursor para a página ficar limpa */
.presenter.is-idle {
  cursor: none;
}

.presenter.is-idle .presenter__control,
.presenter.is-idle .presenter__counter {
  opacity: 0;
}

.presenter .hotspot {
  z-index: 1;
}

@media (hover: hover) and (pointer: fine) {
  .presenter__control:hover {
    background: rgba(11, 16, 22, 0.8);
  }
}

/* ---------- Desktop: leve "encaixe" página a página ---------- */
@media (min-width: 64rem) and (hover: hover) {
  html {
    scroll-snap-type: y proximity;
  }

  .slide {
    scroll-snap-align: start;
  }

  .slides {
    gap: 1.5rem;
  }
}