@font-face {
  font-family: Gelasio;
  src: url(fonts/Gelasio-Regular.ttf) format("truetype");
  font-display: block;
}

:root {
  color-scheme: light;
  --ink: #1d2420;
  --muted: #4d5a53;
  --paper: #f6f3ec;
  --card: #ffffff;
  --line: #8b968f;
  --accent: #23402f;
  --danger: #a3261c;
  --danger-tint: #fdecea;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 20px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

[hidden] { display: none !important; }

#app { max-width: 560px; margin: 0 auto; padding: 0 16px calc(32px + env(safe-area-inset-bottom)); }
.loading { padding: 32px 16px; text-align: center; }

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 0;
}
h1 { margin: 0; font-size: 24px; }
h2 { margin: 28px 0 8px; font-size: 22px; }
h3 { margin: 28px 0 4px; font-size: 20px; }

.lang { display: flex; border: 2px solid var(--accent); border-radius: 12px; overflow: hidden; }
.lang button {
  min-height: 48px;
  padding: 0 14px;
  border: 0;
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-size: 18px;
}
.lang button[aria-pressed="true"] { background: var(--accent); color: #fff; font-weight: 600; }

.field { display: block; margin-top: 18px; }
.field > span { display: block; font-weight: 600; font-size: 21px; }
.field > small { display: block; color: var(--muted); font-size: 17px; }
textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  resize: vertical;
}
textarea:focus { outline: 3px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

.warnings {
  margin-top: 18px;
  padding: 4px 14px;
  border: 2px solid var(--danger);
  border-radius: 12px;
  background: var(--danger-tint);
  color: var(--danger);
  font-weight: 600;
}
.warnings p { margin: 10px 0; }
.notice, .action-message { margin: 10px 0 0; color: var(--muted); font-size: 18px; }
.action-message { color: var(--danger); font-weight: 600; }
.notice:empty, .action-message:empty { display: none; }
.hint { margin: 16px 0 8px; color: var(--muted); font-size: 18px; }

.sheet { display: flex; justify-content: center; margin: 8px 0; }
.sheet svg {
  display: block;
  width: min(100%, 320px);
  height: auto;
  background: var(--card);
  box-shadow: 0 0 0 1px var(--line), 0 2px 10px rgb(0 0 0 / 15%);
}
.sheet text {
  font-family: Gelasio, Georgia, serif;
  font-feature-settings: "onum";
  fill: #000;
  white-space: pre;
}
.sheet text.outside { fill: var(--danger); }
.guide { fill: none; stroke: var(--muted); stroke-width: 0.75; stroke-dasharray: 3 3; }

.primary, .secondary, .danger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 64px;
  margin-top: 12px;
  padding: 10px 16px;
  border-radius: 14px;
  font: inherit;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.primary { border: 0; background: var(--accent); color: #fff; font-size: 24px; min-height: 72px; }
.secondary { border: 2px solid var(--accent); background: transparent; color: var(--accent); }
.danger { border: 0; background: var(--danger); color: #fff; }
button:disabled { opacity: .45; }
a.secondary:not([href]) { opacity: .45; pointer-events: none; }

.new-card { margin-top: 28px; }
.setup-link { display: block; margin-top: 28px; padding: 12px; color: var(--muted); font-size: 17px; text-align: center; }

.stepper { margin-top: 18px; }
.stepper-label { margin: 0 0 6px; font-weight: 600; font-size: 18px; }
.stepper-row { display: grid; grid-template-columns: 1fr 1.1fr 1fr; align-items: center; gap: 8px; }
.stepper output { text-align: center; font-variant-numeric: tabular-nums; font-size: 18px; }
.step {
  min-height: 56px;
  border: 2px solid var(--accent);
  border-radius: 12px;
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-size: 18px;
  font-weight: 600;
}

dialog {
  width: min(92vw, 420px);
  border: 0;
  border-radius: 16px;
  padding: 20px;
  background: var(--card);
  color: var(--ink);
}
dialog::backdrop { background: rgb(0 0 0 / 55%); }
dialog h2 { margin-top: 0; }