/* Paleta UNB */
:root {
  --unb-blue: #004a8f;
  --unb-blue-dark: #003a73;
  --unb-green: #007a33;
  --unb-green-dark: #006025;
  --unb-bg-light-a: #e9f5ef; /* verde claro */
  --unb-bg-light-b: #e6effa; /* azul claro */
  --unb-dark: #0f172a; /* cinza muito escuro para textos/banners */
}

/* Fundo geral com gradiente UNB */
body.unb-theme {
  background: linear-gradient(135deg, var(--unb-bg-light-a), var(--unb-bg-light-b)) !important;
}

/* Header com gradiente UNB */
.unb-theme .app-header {
  background: linear-gradient(90deg, var(--unb-green), var(--unb-blue)) !important;
}

/* Botões UNB */
.btn-unb-primary {
  background: var(--unb-blue);
  color: #fff;
  font-weight: 600;
  border-radius: 0.375rem;
  padding: 0.5rem 1rem;
  transition: background-color 150ms ease;
}
.btn-unb-primary:hover { background: var(--unb-blue-dark); }

.btn-unb-secondary {
  background: var(--unb-green);
  color: #fff;
  font-weight: 600;
  border-radius: 0.375rem;
  padding: 0.5rem 0.75rem;
  transition: background-color 150ms ease;
}
.btn-unb-secondary:hover { background: var(--unb-green-dark); }

.btn-unb-neutral {
  background: #334155; /* slate-700 */
  color: #fff;
  font-weight: 600;
  border-radius: 0.375rem;
  padding: 0.5rem 1rem;
  transition: background-color 150ms ease;
}
.btn-unb-neutral:hover { background: #1f2937; /* slate-800 */ }

/* Moldura de escaneamento inspirada no modelo */
.scan-frame {
  border: 4px solid var(--unb-green);
  border-radius: 0.75rem; /* rounded-xl */
  width: 16rem;
  height: 16rem;
  position: relative;
}
.scan-frame .corner {
  position: absolute;
  width: 2rem;
  height: 2rem;
}
.scan-frame .tl { top: 0; left: 0; border-top: 4px solid #fff; border-left: 4px solid #fff; border-top-left-radius: 0.5rem; }
.scan-frame .tr { top: 0; right: 0; border-top: 4px solid #fff; border-right: 4px solid #fff; border-top-right-radius: 0.5rem; }
.scan-frame .bl { bottom: 0; left: 0; border-bottom: 4px solid #fff; border-left: 4px solid #fff; border-bottom-left-radius: 0.5rem; }
.scan-frame .br { bottom: 0; right: 0; border-bottom: 4px solid #fff; border-right: 4px solid #fff; border-bottom-right-radius: 0.5rem; }

#interactive video {
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* Oculta o canvas interno de debug do Quagga (linhas vermelhas/azuis) */
.drawingBuffer {
  display: none !important;
}

/* Tela cheia durante escaneamento */
body.fullscreen-scan #scanPanel {
  position: fixed;
  inset: 0;
  z-index: 999;
  padding: 0 !important;
  margin: 0 !important;
  background: #000;
}
body.fullscreen-scan #scanPanel #interactive {
  position: absolute;
  inset: 0;
  border-radius: 0;
}
body.fullscreen-scan #interactive video {
  width: 100vw;
  height: 100vh;
  object-fit: cover;
}
/* Oculta controles e elementos não essenciais em tela cheia */
body.fullscreen-scan #scanControls,
body.fullscreen-scan .app-header,
body.fullscreen-scan .app-footer,
body.fullscreen-scan #idlePanel,
body.fullscreen-scan #resultPanel,
body.fullscreen-scan #errorPanel {
  display: none !important;
}

/* Banner de feedback quando câmera desativada */
#cameraOffBanner {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--unb-dark);
  color: #fff;
  padding: 10px 16px;
  border-radius: 9999px;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}
#cameraOffBanner.show {
  opacity: 1;
}