:root {
  --bg: #BAD3E6;
  --ink: #183145;
  --accent: #86A0BE;
  --accent-dark: #452C19;
  --dark: #111;
  --card-max-width: 900px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

body {
  position: relative;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Courier Prime', Courier, monospace;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Ruido tipo Figma con un filtro SVG: baseFrequency = Tamaño, feFuncA slope = Densidad, y la opacity de acá abajo = opacidad del ruido. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.25;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.4' numOctaves='2' stitchTiles='stitch' result='noise'/%3E%3CfeColorMatrix in='noise' type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0' result='mono'/%3E%3CfeComponentTransfer in='mono'%3E%3CfeFuncA type='linear' slope='0.4' intercept='0'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
}

.app {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  width: 100%;
  padding: 28px 16px;
  max-width: 1680px;
  margin: 0 auto;
}

.app-header {
  text-align: center;
}

.card-title {
  margin: 0;
  font-weight: 600;
  color: #f7f7f7;
  font-size: clamp(20px, 4vw, 30px);
  letter-spacing: 0.2px;
  text-align: center;
  text-transform: uppercase;
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
  width: 100%;
}

/* ---------- Tarjeta ---------- */

.card-wrapper {
  position: relative;
  width: 100%;
  max-width: var(--card-max-width);
  aspect-ratio: 2599 / 1632;
  margin: 0 auto;
  user-select: none;
  /* Oculta hasta que carga el fondo (JS agrega .is-ready), para que los campos no floten sobre un fondo vacío en conexiones lentas. */
  opacity: 0;
  transition: opacity 0.25s ease;
}

.card-wrapper.is-ready {
  opacity: 1;
}

.card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  -webkit-user-drag: none;
}

.photo-box {
  position: absolute;
  appearance: none;
  border: none;
  background: transparent;
  background-size: cover;
  background-position: center;
  padding: 0;
  margin: 0;
  cursor: pointer;
  outline: 3px dashed transparent;
  outline-offset: -6px;
  transition: outline-color 0.15s ease, background 0.15s ease;
}

.photo-box.has-photo {
  transform: rotate(-0.65deg);
  box-shadow: 6px 6px 24px rgba(0, 0, 0, 0.62);
}

/* Resalta el recuadro solo mientras se arrastra un archivo encima; el marco ya está dibujado en el arte de fondo. */
.photo-box.is-dragover {
  outline-color: var(--accent);
  background: rgba(186, 211, 230, 0.28);
}

.field {
  /* El texto de la credencial siempre es negro, sin importar la paleta de la página. */
  position: absolute;
  border: none;
  background: transparent;
  color: #000;
  opacity: 1;
  font-family: 'Caveat', cursive;
  font-weight: 400;
  padding: 0;
  margin: 0;
  outline: none;
  caret-color: #000;
  white-space: nowrap;
  overflow: hidden;
  /* El input ocupa toda la línea punteada y se centra, igual que el texto en el PNG exportado. */
  text-align: center;
}

.field:focus {
  outline: none;
  box-shadow: none;
}

.field::placeholder {
  color: #000;
  opacity: 1;
}

.signature-canvas {
  position: absolute;
  cursor: crosshair;
  touch-action: none;
  color: var(--accent-dark);
}

.clear-signature-btn {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: #000;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.clear-signature-btn:hover {
  opacity: 0.6;
}

.clear-signature-btn:active {
  transform: scale(0.92);
}

.clear-signature-btn[hidden] {
  display: none;
}

/* ---------- Controles ---------- */

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  width: 100%;
  max-width: var(--card-max-width);
}

.btn {
  font-family: 'Courier Prime', Courier, monospace;
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(12px, 3vw, 14px);
  letter-spacing: 0.4px;
  padding: 12px 20px;
  border-radius: 6px;
  border: none;
  background: #f7f7f7;
  color: #bad3e6;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease;
}

.btn:hover {
  background: #fff;
}

.btn:active {
  transform: translateY(1px);
}

.status-msg {
  min-height: 20px;
  font-size: 13px;
  color: var(--ink);
  text-align: center;
  margin: 0;
}

/* ---------- Aviso de privacidad (antes era un footer fijo, ahora es un pop-up que se puede cerrar) ---------- */

.privacy-toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  max-width: 340px;
  background: #f7f7f7;
  color: #bad3e6;
  font-family: 'Courier Prime', Courier, monospace;
  font-size: 14px;
  line-height: 1.5;
  text-align: left;
  padding: 16px 18px;
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.privacy-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.privacy-toast p {
  margin: 0;
  flex: 1;
}

.privacy-toast-close {
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: #bad3e6;
  font-size: 20px;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.privacy-toast-close:hover {
  opacity: 0.6;
}

/* ---------- Modal de recorte (mover/zoom/rotar la foto antes de encajarla en el marco) ---------- */

.crop-modal[hidden] {
  display: none;
}

.crop-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.crop-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 17, 17, 0.6);
}

.crop-modal-panel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  background: #f7f7f7;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  max-width: calc(100vw - 40px);
}

.crop-modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: transparent;
  color: var(--ink);
  font-size: 22px;
  line-height: 1;
  padding: 4px;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.crop-modal-close:hover {
  opacity: 0.6;
}

.crop-canvas {
  display: block;
  width: 340px;
  height: 298px;
  max-width: 100%;
  border-radius: 6px;
  background: #ddd;
  cursor: grab;
  touch-action: none;
}

.crop-canvas:active {
  cursor: grabbing;
}

.crop-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 340px;
  max-width: 100%;
}

.crop-zoom {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  color: var(--ink);
}

.crop-zoom-icon {
  font-size: 14px;
  line-height: 1;
  user-select: none;
}

.crop-zoom input[type='range'] {
  flex: 1;
  accent-color: var(--accent-dark);
}

.crop-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.crop-icon-btn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  border: 1px solid var(--ink);
  background: #fff;
  color: var(--ink);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.crop-icon-btn:hover {
  background: rgba(24, 49, 69, 0.07);
}

.crop-icon-btn:active {
  transform: translateY(1px);
}

.crop-confirm-btn {
  flex: 1;
  font-family: 'Courier Prime', Courier, monospace;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.4px;
  padding: 10px 16px;
  border-radius: 6px;
  border: none;
  background: #bad3e6;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.crop-confirm-btn:hover {
  background: #a4c5dd;
}

.crop-confirm-btn:active {
  transform: translateY(1px);
}

@media (max-width: 480px) {
  .app {
    padding: 16px 10px 32px;
    gap: 36px;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .privacy-toast {
    right: 16px;
    left: 16px;
    bottom: 16px;
    max-width: none;
  }
}