/* =====================================================
   Arero Flipbook — estilos isolados dentro de
   .arero-flipbook-app (não afetam o resto do tema)
===================================================== */

.arero-flipbook-app {
  --afb-bg: #0e0e0e;
  --afb-panel: #1a1a1a;
  --afb-accent: #f4c430;
  --afb-text: #f2f2f2;
  --afb-text-dim: #9a9a9a;
  --afb-shadow: rgba(0, 0, 0, 0.6);

  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  background: var(--afb-bg);
  color: var(--afb-text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.arero-flipbook-app,
.arero-flipbook-app *,
.arero-flipbook-app *::before,
.arero-flipbook-app *::after {
  box-sizing: border-box;
}

.arero-flipbook-app:fullscreen,
.arero-flipbook-app:-webkit-full-screen {
  width: 100%;
  height: 100%;
  border-radius: 0;
  background: var(--afb-bg);
}

/* ---------- Cabeçalho ---------- */
.arero-flipbook-app .afb-header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  background: var(--afb-panel);
  border-bottom: 1px solid rgba(244, 196, 48, 0.15);
  z-index: 5;
}

.arero-flipbook-app .afb-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: var(--afb-text);
  margin: 0;
}

.arero-flipbook-app .afb-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-family: inherit;
  line-height: normal;
  color: var(--afb-text-dim);
  text-decoration: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 7px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.arero-flipbook-app .afb-download-btn:hover:not(:disabled) {
  color: var(--afb-bg);
  background: var(--afb-accent);
  border-color: var(--afb-accent);
}

.arero-flipbook-app .afb-download-btn:disabled {
  opacity: 0.5;
  cursor: default;
}

/* ---------- Área do livro ---------- */
.arero-flipbook-app .afb-viewer {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  min-height: 0;
}

.arero-flipbook-app .afb-book {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 30px 40px var(--afb-shadow));
}

.arero-flipbook-app .afb-page {
  background: #fff;
  overflow: hidden;
}

.arero-flipbook-app .afb-page img {
  width: 100% !important;
  height: 100% !important;
  max-width: none !important;
  display: block !important;
  object-fit: contain !important;
  -webkit-user-drag: none;
  user-select: none;
}

.arero-flipbook-app .afb-page-cover {
  background: #111;
}

/* ---------- Carregamento ---------- */
.arero-flipbook-app .afb-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--afb-bg);
  z-index: 10;
}

.arero-flipbook-app .afb-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(244, 196, 48, 0.2);
  border-top-color: var(--afb-accent);
  border-radius: 50%;
  animation: afb-spin 0.9s linear infinite;
}

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

.arero-flipbook-app .afb-progress-track {
  width: 220px;
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.arero-flipbook-app .afb-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--afb-accent);
  transition: width 0.2s ease;
}

.arero-flipbook-app .afb-progress-text {
  font-size: 13px;
  color: var(--afb-text-dim);
}

.arero-flipbook-app .afb-error-box {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 14px;
  background: var(--afb-bg);
  z-index: 11;
  text-align: center;
  padding: 40px;
}

.arero-flipbook-app .afb-error-box h3 {
  margin: 0;
  color: var(--afb-accent);
}

.arero-flipbook-app .afb-error-box p {
  margin: 0;
  color: var(--afb-text-dim);
  max-width: 420px;
  font-size: 14px;
  line-height: 1.5;
}

/* ---------- Controles ---------- */
.arero-flipbook-app .afb-controls {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 14px 14px calc(14px + env(safe-area-inset-bottom, 0px)) 14px;
  background: var(--afb-panel);
  border-top: 1px solid rgba(244, 196, 48, 0.15);
  z-index: 5;
}

.arero-flipbook-app .afb-controls button {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: transparent;
  color: var(--afb-text);
  font-size: 18px;
  line-height: normal;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  touch-action: manipulation;
  -webkit-appearance: none;
  appearance: none;
  font-family: inherit;
}

.arero-flipbook-app .afb-controls button:hover:not(:disabled) {
  background: var(--afb-accent);
  border-color: var(--afb-accent);
  color: #111;
}

.arero-flipbook-app .afb-controls button:disabled {
  opacity: 0.3;
  cursor: default;
}

.arero-flipbook-app .afb-indicator {
  font-size: 13px;
  color: var(--afb-text-dim);
  min-width: 70px;
  text-align: center;
  letter-spacing: 0.3px;
}

@media (max-width: 640px) {
  .arero-flipbook-app .afb-title { font-size: 13px; }
  .arero-flipbook-app .afb-download-btn .afb-label { display: none; }
  .arero-flipbook-app .afb-controls { gap: 10px; }
}

/* Celulares estreitos */
@media (max-width: 420px) {
  .arero-flipbook-app .afb-header { padding: 10px 14px; }
  .arero-flipbook-app .afb-viewer { padding: 10px; }
  .arero-flipbook-app .afb-controls { gap: 8px; }
  .arero-flipbook-app .afb-controls button { width: 38px; height: 38px; font-size: 16px; }
  .arero-flipbook-app .afb-indicator { font-size: 12px; min-width: 54px; }
}

/* Celular na horizontal / telas baixas: economiza altura */
@media (max-height: 480px) {
  .arero-flipbook-app .afb-header { padding: 8px 16px; }
  .arero-flipbook-app .afb-title { font-size: 12px; }
  .arero-flipbook-app .afb-viewer { padding: 8px; }
  .arero-flipbook-app .afb-controls {
    padding: 8px 14px calc(8px + env(safe-area-inset-bottom, 0px)) 14px;
    gap: 12px;
  }
  .arero-flipbook-app .afb-controls button { width: 34px; height: 34px; font-size: 15px; }
}