/* ==========================================================================
   BASE: reset, fundo halftone + grafismos táticos, moldura do app
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background-color: var(--bg-yellow);
  color: var(--text-primary);
  min-height: 100dvh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.4;
}

/* Fundo pontilhado (retícula halftone) */
.bg-pattern {
  position: fixed;
  inset: 0;
  background-image: radial-gradient(var(--dark-black) 15%, transparent 16%);
  background-size: 18px 18px;
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}

.bg-tactical-elements {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.tactical-x {
  position: absolute;
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--dark-black);
  opacity: 0.25;
  user-select: none;
}
.tactical-x.x-1 { top: 10%; left: 8%; }
.tactical-x.x-2 { top: 75%; left: 12%; }
.tactical-x.x-3 { top: 20%; right: 10%; }

.tactical-line {
  position: absolute;
  border-top: 3px dashed var(--dark-black);
  opacity: 0.2;
}
.tactical-line.line-1 { top: 35%; left: -5%; width: 30%; transform: rotate(-15deg); }
.tactical-line.line-2 { bottom: 20%; right: -5%; width: 40%; transform: rotate(10deg); }

pb-app {
  position: relative;
  z-index: 1;
  display: block;
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-xl);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible { outline: 3px solid var(--btn-blue); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}