:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --brand: #2563eb;
  --brand-ink: #1d4ed8;
  --brand-soft: #eff4ff;
  --ok: #059669;
  --ok-soft: #ecfdf5;
  --radius: 20px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.45;
}
button, input, select { font: inherit; color: inherit; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }

/* header */
.top { background: #0b1220; color: #fff; }
.top-in { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: inline-flex; gap: 3px; }
.logo b {
  display: grid; place-items: center; width: 28px; height: 28px; border-radius: 6px;
  background: #fff; color: #0b1220; font-weight: 800; font-size: 15px;
}
.badge-test { font-size: 12px; padding: 4px 10px; border-radius: 99px; background: #fbbf24; color: #3b2600; font-weight: 600; }

/* hero */
.hero { text-align: center; padding: 36px 0 22px; }
.hero h1 { font-size: clamp(26px, 5vw, 38px); line-height: 1.1; margin: 0 0 8px; letter-spacing: -0.02em; }
.hero p { margin: 0; color: var(--muted); }

/* tarjeta del flujo */
.card { background: var(--card); border-radius: var(--radius); box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08); padding: 20px; }
@media (min-width: 640px) { .card { padding: 28px 32px; } }
.progress { height: 4px; background: var(--line); border-radius: 99px; overflow: hidden; margin-bottom: 14px; }
.progress span { display: block; height: 100%; width: 0; background: var(--brand); transition: width .3s ease; }
.flow-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; min-height: 32px; margin-bottom: 6px; }
.back { border: 0; background: none; color: var(--brand); font-weight: 600; cursor: pointer; padding: 4px 0; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { font-size: 13px; background: var(--brand-soft); color: var(--brand-ink); padding: 4px 10px; border-radius: 99px; font-weight: 500; }

h2 { font-size: 21px; margin: 8px 0 4px; letter-spacing: -0.01em; }
.sub { color: var(--muted); margin: 0 0 16px; font-size: 15px; }

.search {
  width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px;
  margin-bottom: 14px; background: #fff; outline: none;
}
.search:focus, .field input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(37, 99, 235, .15); }

.grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
.grid.years { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
.list { display: grid; gap: 8px; }
.opt {
  text-align: left; border: 1px solid var(--line); background: #fff; border-radius: 14px;
  padding: 14px; cursor: pointer; font-weight: 600; display: flex; align-items: center; gap: 10px;
  transition: border-color .15s, background .15s, transform .05s;
  min-height: 52px;
}
.grid.years .opt { justify-content: center; }
.opt:hover { border-color: var(--brand); background: var(--brand-soft); }
.opt:active { transform: scale(.99); }
.opt.sel { border-color: var(--brand); background: var(--brand-soft); color: var(--brand-ink); }
.opt img { width: 34px; height: 34px; object-fit: contain; }
.opt small { display: block; font-weight: 400; color: var(--muted); font-size: 13px; }

.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-weight: 600; font-size: 14px; }
.field input {
  padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; outline: none; background: #fff; width: 100%;
}
.field .hint { color: var(--muted); font-size: 13px; }
.row2 { display: grid; gap: 0 14px; }
@media (min-width: 640px) { .row2 { grid-template-columns: 1fr 1fr; } }

.estado { display: grid; gap: 8px; }
@media (min-width: 640px) { .estado { grid-template-columns: repeat(3, 1fr); } }
.estado .opt { flex-direction: column; align-items: flex-start; gap: 2px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; width: 100%;
  border: 0; border-radius: 99px; padding: 15px 22px; background: var(--brand); color: #fff;
  font-weight: 700; cursor: pointer; margin-top: 6px; text-decoration: none;
}
.btn:hover { background: var(--brand-ink); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.ghost { background: #fff; color: var(--brand); border: 1px solid var(--brand); }
.err { color: #b91c1c; font-size: 14px; margin: 8px 0 0; }
.legal { color: var(--muted); font-size: 12px; margin-top: 10px; }

.empty, .loading { color: var(--muted); padding: 24px 0; text-align: center; }
.spinner {
  width: 26px; height: 26px; border: 3px solid var(--line); border-top-color: var(--brand);
  border-radius: 50%; animation: spin .8s linear infinite; margin: 0 auto 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* resultado */
.res-head { text-align: center; margin-bottom: 18px; }
.res-head .car { font-weight: 700; font-size: 18px; }
.res-head .car small { display: block; font-weight: 400; color: var(--muted); font-size: 14px; margin-top: 2px; }
.offers { display: grid; gap: 12px; }
@media (min-width: 720px) { .offers { grid-template-columns: repeat(3, 1fr); } }
.offer {
  border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; position: relative;
}
.offer.best { border: 2px solid var(--ok); background: var(--ok-soft); }
.offer .tag {
  position: absolute; top: -11px; left: 16px; background: var(--ok); color: #fff;
  font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 99px;
}
.offer h3 { margin: 0 0 4px; font-size: 16px; }
.offer .what { color: var(--muted); font-size: 14px; margin: 0 0 12px; min-height: 40px; }
.offer .amount { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; }
.offer .alt { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.offer .btn { margin-top: auto; }
.done { text-align: center; padding: 10px 0; }
.done .ok { width: 52px; height: 52px; border-radius: 50%; background: var(--ok-soft); color: var(--ok); display: grid; place-items: center; font-size: 26px; margin: 0 auto 10px; }

.trust { display: grid; gap: 12px; margin: 22px 0; }
@media (min-width: 720px) { .trust { grid-template-columns: repeat(3, 1fr); } }
.trust div { background: var(--card); border-radius: 16px; padding: 16px; }
.trust strong { display: block; margin-bottom: 2px; }
.trust span { color: var(--muted); font-size: 14px; }
.foot { color: var(--muted); font-size: 12px; text-align: center; padding-bottom: 32px; }