:root {
  --bg: #f4f2ec;
  --card: #ffffff;
  --text: #1d2230;
  --muted: #646a78;
  --line: #dedad0;
  --brand: #9a7414;
  --brand-dark: #6f530c;
  --brand-soft: #f6efd9;
  --ok: #1d7a46;
  --ok-soft: #e3f4ea;
  --err: #b42318;
  --err-soft: #fdecea;
  --ink: #0d2a7a;
  --radius: 14px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
a { color: var(--brand-dark); }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.15rem; }
p { margin: 0 0 .75rem; }

.topbar {
  background: #1d2230;
  color: #fff;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.topbar .marca { font-weight: 800; letter-spacing: .04em; }
.topbar .marca span { color: #e2bd4f; }
.topbar .sub { font-size: .8rem; opacity: .75; }
.topbar .grow { flex: 1; }

.wrap { max-width: 720px; margin: 0 auto; padding: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
  margin-bottom: 14px;
}

.steps { display: flex; gap: 6px; margin: 4px 0 14px; }
.steps i { flex: 1; height: 5px; border-radius: 3px; background: var(--line); }
.steps i.on { background: var(--brand); }
.step-label { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 2px; }

label { display: block; font-weight: 600; font-size: .92rem; margin: 14px 0 6px; }
label .hint { font-weight: 400; color: var(--muted); }
input[type=text], input[type=email], input[type=tel], input[type=password], input[type=number], select, textarea {
  width: 100%;
  font: inherit;
  font-size: 16px; /* evita el zoom automático en iOS */
  padding: 12px;
  border: 1px solid #cfcabd;
  border-radius: 10px;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }
.invalid input, .invalid select, input.invalid { border-color: var(--err); background: var(--err-soft); }
.err-msg { color: var(--err); font-size: .85rem; margin-top: 4px; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
@media (max-width: 520px) { .row { grid-template-columns: 1fr; } }

.seg { display: flex; gap: 8px; flex-wrap: wrap; }
.seg label {
  flex: 1 1 0;
  min-width: 110px;
  margin: 0;
  border: 1px solid #cfcabd;
  border-radius: 10px;
  padding: 11px 12px;
  text-align: center;
  font-weight: 600;
  cursor: pointer;
  background: #fff;
  user-select: none;
}
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label:has(input:checked) { border-color: var(--brand); background: var(--brand-soft); color: var(--brand-dark); box-shadow: inset 0 0 0 1px var(--brand); }
.seg label:has(input:focus-visible) { outline: 2px solid var(--brand); }
.seg.col { flex-direction: column; }
.seg.col label { text-align: left; }

.pregunta { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 14px; }
.pregunta:first-of-type { border-top: 0; margin-top: 0; padding-top: 0; }
.pregunta > p { font-weight: 600; margin-bottom: 4px; }
.pregunta > small { display: block; color: var(--muted); margin-bottom: 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: inherit;
  font-weight: 700;
  border: 0;
  border-radius: 12px;
  padding: 14px 18px;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  min-height: 48px;
}
.btn:hover { background: var(--brand-dark); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.sec { background: #fff; color: var(--text); border: 1px solid #cfcabd; }
.btn.sec:hover { background: #f7f5f0; }
.btn.wa { background: #1f9d55; }
.btn.wa:hover { background: #17834a; }
.btn.danger { background: #fff; color: var(--err); border: 1px solid #e7b7b2; }
.btn.small { padding: 8px 12px; min-height: 36px; font-size: .88rem; border-radius: 9px; }
.btn.block { width: 100%; }
.acciones { display: flex; gap: 10px; margin-top: 18px; }
.acciones .btn { flex: 1; }

.resumen { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0 4px; }
.resumen div { background: var(--brand-soft); border-radius: 10px; padding: 10px 12px; }
.resumen b { display: block; font-size: 1.05rem; }
.resumen span { font-size: .8rem; color: var(--muted); }

.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 500; margin: 14px 0 0; cursor: pointer; }
.check input { width: 22px; height: 22px; margin: 1px 0 0; flex: none; accent-color: var(--brand); }

.aviso { border-radius: 10px; padding: 12px 14px; font-size: .92rem; margin: 12px 0; }
.aviso.info { background: var(--brand-soft); }
.aviso.err { background: var(--err-soft); color: var(--err); }
.aviso.ok { background: var(--ok-soft); color: var(--ok); }

#preview { background: #e9e6de; border-radius: 10px; padding: 8px; max-height: 70vh; overflow: auto; -webkit-overflow-scrolling: touch; }
#preview canvas { display: block; width: 100%; height: auto; margin: 0 auto 8px; background: #fff; box-shadow: 0 1px 4px rgba(0,0,0,.15); }

.pad-box { position: relative; border: 2px dashed #bdb6a4; border-radius: 12px; background: #fff; touch-action: none; }
.pad-box canvas { display: block; width: 100%; height: 220px; border-radius: 10px; cursor: crosshair; }
.pad-box .linea { position: absolute; left: 8%; right: 8%; bottom: 46px; border-bottom: 1px solid #cfcabd; pointer-events: none; }
.pad-box .placeholder { position: absolute; inset: 0; display: grid; place-items: center; color: #b3ad9e; pointer-events: none; font-size: 1.05rem; }
.pad-tools { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; color: var(--muted); font-size: .85rem; }

.centro { text-align: center; }
.icono-grande { font-size: 3rem; line-height: 1; margin-bottom: 8px; }
.oculto { display: none !important; }
.spinner { width: 34px; height: 34px; border: 4px solid var(--line); border-top-color: var(--brand); border-radius: 50%; animation: gira 0.8s linear infinite; margin: 24px auto; }
@keyframes gira { to { transform: rotate(360deg); } }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: .85rem; word-break: break-all; }