/* Colores de marca: cambiá estas variables con la paleta real de IMU */
:root {
  --brand: #0f3d5e;
  --brand-ink: #ffffff;
  --accent: #19a974;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --ink: #16202a;
  --muted: #5b6b7a;
  --line: #dde3e9;
  --danger: #c0392b;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 32, 48, .06), 0 4px 16px rgba(16, 32, 48, .06);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  padding-bottom: calc(96px + env(safe-area-inset-bottom));
}
h1 { font-size: 1.45rem; line-height: 1.2; margin: 8px 0 6px; }
p { margin: 0 0 12px; }
.lead { color: var(--muted); }
.fine { color: var(--muted); font-size: .82rem; margin-top: 12px; }

.top {
  position: sticky; top: 0; z-index: 5;
  background: var(--brand); color: var(--brand-ink);
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: .95rem; }
.logo {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--brand-ink); color: var(--brand);
  font-size: .7rem; font-weight: 800; letter-spacing: .02em;
}
.steps { display: flex; gap: 6px; list-style: none; margin: 10px 0 0; padding: 0; counter-reset: s; }
.steps li {
  flex: 1; font-size: .74rem; opacity: .55;
  padding-top: 6px; border-top: 3px solid rgba(255,255,255,.35);
}
.steps li.on { opacity: 1; border-top-color: var(--accent); }
.steps[hidden] { display: none; }

main { max-width: 560px; margin: 0 auto; padding: 16px; }
.screen[hidden] { display: none; }
.center { text-align: center; padding: 32px 8px; }
.card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }

form { display: grid; gap: 16px; }
.field label, .field .label { display: block; font-weight: 600; margin-bottom: 6px; }
.field .req { color: var(--danger); }
input[type=text], input[type=email], select, textarea {
  width: 100%; font: inherit; padding: 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
}
input:focus, select:focus, textarea:focus, .chip:focus-visible, .btn:focus-visible { outline: 3px solid rgba(25,169,116,.35); outline-offset: 1px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: inherit; font-size: .92rem; border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  border-radius: 99px; padding: 8px 14px; cursor: pointer;
}
.chip.on { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.field.invalid input, .field.invalid select { border-color: var(--danger); }
.field[hidden] { display: none; }
.hint { color: var(--muted); font-size: .85rem; margin: -2px 0 8px; }
textarea { resize: vertical; min-height: 84px; }
.form { display: grid; gap: 18px; }
#screen-schedule .field { margin-bottom: 20px; }
.days { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.day {
  font: inherit; display: grid; gap: 2px; justify-items: center; padding: 10px 4px; cursor: pointer;
  border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink);
}
.day .dow { font-size: .72rem; text-transform: capitalize; color: var(--muted); }
.day .dom { font-weight: 700; }
.day.on { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.day.on .dow { color: var(--brand-ink); opacity: .85; }
.day:focus-visible { outline: 3px solid rgba(25,169,116,.35); outline-offset: 1px; }
.toggle { display: flex; gap: 10px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px; cursor: pointer; }
.toggle input { width: 20px; height: 20px; accent-color: var(--accent); flex: none; }
.field .msg { color: var(--danger); font-size: .82rem; margin-top: 4px; }

.review-line { padding: 8px 0; border-bottom: 1px solid var(--line); }
.review-line:last-child { border-bottom: 0; }
.review-line small { display: block; color: var(--muted); font-size: .78rem; }

.bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 5;
  background: var(--surface); border-top: 1px solid var(--line);
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  box-shadow: 0 -4px 16px rgba(16,32,48,.06);
}
.bar[hidden] { display: none; }
.actions { max-width: 560px; margin: 0 auto; display: flex; gap: 10px; }
.btn {
  font: inherit; font-weight: 650; border-radius: 12px; padding: 13px 18px; border: 0; cursor: pointer;
  text-decoration: none; display: inline-block; text-align: center;
}
.btn.primary { background: var(--accent); color: #fff; flex: 1; }
.btn.primary[disabled] { opacity: .45; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.center .btn { margin-top: 8px; }

.error { background: #fdecea; color: var(--danger); border-radius: 10px; padding: 10px 12px; margin-top: 12px; font-size: .9rem; }
.error[hidden] { display: none; }
.check { width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 8px; display: grid; place-items: center; background: var(--accent); color: #fff; font-size: 28px; }
.spinner { width: 34px; height: 34px; margin: 0 auto 12px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--brand); animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }
.btn[hidden] { display: none; }