@font-face {
  font-family: "Doto Round";
  src: url("fonts/DotoRound.ttf") format("truetype");
  font-weight: 900;
}

:root {
  --black: #000;
  --white: #fff;
  --red: #c42020;
  --yellow: #e8c430;
  --grey: #666;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--white)
    radial-gradient(circle, #d8d8d8 1px, transparent 1.2px) 4px 4px / 8px 8px;
  color: var(--black);
  font-family: "Doto Round", monospace;
  font-size: 18px;
  line-height: 1.35;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.hero { text-align: center; margin-bottom: 16px; background: var(--white); padding: 16px 12px 20px; }
.big { font-size: 140px; line-height: 1; letter-spacing: -0.02em; }
h1 { font-size: 22px; margin: 4px 0 12px; letter-spacing: 0.04em; }
h2 { font-size: 20px; margin: 0 0 12px; letter-spacing: 0.06em; text-align: center; }
.lead { font-size: 18px; margin: 0; }
.muted { color: var(--grey); font-size: 14px; }

.panel {
  background: var(--white);
  border: 2px solid var(--black);
  padding: 16px;
  margin-bottom: 16px;
}

/* the live portrait, 224 x 300 device pixels, scaled up */
.stage {
  width: min(100%, 336px);
  aspect-ratio: 224 / 300;
  margin: 0 auto 8px;
  border: 2px solid var(--black);
  background: var(--white);
}
#preview {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

/* the finished card, 4:3, as the device shows it */
.card {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 2px solid var(--black);
  background: var(--white);
  margin: 0 0 14px;
}
.card img { display: block; width: 100%; height: 100%; image-rendering: pixelated; }

.row {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 10px 0;
}
.styles { gap: 14px; }

.btn {
  font: inherit;
  font-size: 18px;
  letter-spacing: 0.06em;
  padding: 12px 18px;
  border: 2px solid var(--black);
  background: var(--white);
  color: var(--black);
  cursor: pointer;
}
.btn.primary { background: var(--yellow); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn:active { background: var(--red); color: var(--white); }

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 16px;
  letter-spacing: 0.06em;
}
.toggle input { accent-color: var(--red); }

.hint { text-align: center; font-size: 14px; color: var(--grey); margin: 6px 0; min-height: 1.2em; }
.hint.error { color: var(--red); }

.field {
  display: block;
  font-size: 14px;
  letter-spacing: 0.06em;
  margin: 18px 0 14px;
}
.field + .field { margin-top: 0; }
.field input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px;
  font: 18px system-ui, sans-serif;
  border: 2px solid var(--black);
  background: var(--white);
}
.field input:focus { outline: 3px solid var(--yellow); }

.foot { text-align: center; font-size: 13px; color: var(--grey); margin-top: 24px; }