:root {
  --ink: #17202a; --muted: #6b7280; --line: #d8dde3; --bg: #f5f6f8; --card: #ffffff;
  --brand: #0f4c81; --brand-dark: #0b3a63; --danger: #b42318; --ok: #1a7f37;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.45 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; -webkit-text-size-adjust: 100%; }
#app { max-width: 820px; margin: 0 auto; padding: 20px 18px 60px; }
.screen { animation: fade .2s ease-out; }
@keyframes fade { from { opacity: 0; transform: translateY(4px);} to { opacity: 1; transform: none;} }
.top { margin-bottom: 18px; }
.brand { font-size: 12px; letter-spacing: .18em; color: var(--brand); font-weight: 700; }
h1 { font-size: 26px; margin: 4px 0 6px; line-height: 1.2; }
h1.small { font-size: 21px; }
h2 { font-size: 18px; margin: 22px 0 10px; }
.prop { font-size: 18px; color: var(--ink); margin: 0; font-weight: 600; }
.muted { color: var(--muted); }
.tiny { font-size: 13px; }
.center { text-align: center; }
.err { color: var(--danger); font-weight: 600; }
hr { border: 0; border-top: 1px solid var(--line); margin: 26px 0 18px; }

.btn { display: block; width: 100%; padding: 16px 18px; margin: 10px 0; font: inherit; font-size: 18px; font-weight: 600;
  border-radius: 12px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; text-align: center; -webkit-tap-highlight-color: transparent; }
.btn:active { transform: scale(.995); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:disabled { opacity: .55; }
.btn.big { padding: 20px; font-size: 20px; }
.btn.ghost { border-style: dashed; color: var(--brand); }
.btn.danger { background: #fff; border-color: var(--danger); color: var(--danger); }
.btn.link { background: transparent; border-color: transparent; color: var(--muted); font-weight: 500; font-size: 16px; }
.btn.small-btn { width: auto; display: inline-block; margin: 6px 0 0; padding: 8px 12px; }

.list .btn { text-align: left; font-size: 20px; padding: 18px 20px; }
.list .btn::after { content: "›"; float: right; color: var(--muted); }

.pin { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; margin-top: 24px; }
.pin label { display: block; font-weight: 600; margin-bottom: 8px; }
.pin input { width: 100%; font-size: 30px; letter-spacing: .5em; text-align: center; padding: 12px; border: 1px solid var(--line); border-radius: 10px; }

.fields label { display: block; font-size: 14px; color: var(--muted); margin: 10px 0; }
.fields input { display: block; width: 100%; margin-top: 4px; font: inherit; font-size: 19px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink); }

details.legal { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin: 16px 0; }
details.legal summary { cursor: pointer; font-weight: 600; color: var(--brand); }
details.legal p { font-size: 13px; color: #333; text-align: justify; }

.pad-wrap { background: var(--card); border: 2px dashed #9aa4b2; border-radius: 12px; padding: 8px; }
#pad { display: block; width: 100%; height: 220px; touch-action: none; background: #fff; border-radius: 8px; }
.check { font-size: 72px; color: var(--ok); margin: 60px 0 10px; }