/* ¿Conviene comprarlo allá? — Calculadora de compras en el exterior */
:root {
  --sky: #e8f4fc;
  --sky-soft: #f4faff;
  --paper: #ffffff;
  --celeste: #1a8ac9;
  --celeste-dark: #0b6fa3;
  --celeste-deep: #0a4f75;
  --navy: #12344a;
  --ink: #1a2e3a;
  --muted: #5a7380;
  --line: #d4e6f0;
  --line-strong: #b9d4e4;
  --ok: #157a4a;
  --ok-bg: #e8f7ee;
  --bad: #b42318;
  --bad-bg: #fdecea;
  --warn: #8a5a00;
  --warn-bg: #fff6e0;
  --shadow: 0 10px 30px rgba(18, 52, 74, 0.08);
  --radius: 1rem;
  --font: "Source Sans 3", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Outfit", "Source Sans 3", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding-bottom: env(safe-area-inset-bottom, 0);
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 420px at 10% -10%, #d7eefb 0%, transparent 60%),
    radial-gradient(900px 380px at 100% 0%, #cfe8f8 0%, transparent 55%),
    var(--sky-soft);
  line-height: 1.55;
  font-size: 1.05rem;
  min-height: 100vh;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--celeste-dark); }
a:hover { color: var(--celeste); }
button, input, select, textarea { font: inherit; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3.5rem;
  background: #fff;
  padding: 0.5rem 0.8rem;
  z-index: 100;
  border-radius: 0.4rem;
  color: var(--navy);
}
.skip-link:focus { top: 0.6rem; }

.wrap {
  width: min(920px, calc(100% - 1.5rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 250, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  min-height: 3.75rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
}
.logo img {
  width: 2.2rem;
  height: 2.2rem;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.logo-text strong {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.02rem;
  color: var(--navy);
}
.logo-text span {
  font-size: 0.78rem;
  color: var(--muted);
}

.hero {
  padding: 1.6rem 0 0.4rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 5.5vw, 2.35rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--navy);
  margin: 0 0 0.7rem;
}
.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 40rem;
  font-size: 1.05rem;
}

.disclaimer {
  margin: 1.2rem 0 0;
  padding: 0.85rem 1rem;
  background: var(--warn-bg);
  border: 1px solid #efd39a;
  border-radius: 0.8rem;
  color: #5c4308;
  font-size: 0.95rem;
}
.disclaimer strong { color: #4a3604; }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.1rem 1.25rem;
  margin: 1rem 0;
}
.card h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.35rem;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.card .lead {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.grid {
  display: grid;
  gap: 0.85rem;
}
.grid.cols-2 { grid-template-columns: 1fr; }
.grid.cols-3 { grid-template-columns: 1fr; }
.grid.cols-4 { grid-template-columns: 1fr; }

label, .label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--navy);
  margin-bottom: 0.3rem;
}
.hint {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 0.25rem;
}
.field input,
.field select {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.6rem;
  background: #fff;
  color: var(--ink);
}
.field input:focus,
.field select:focus {
  outline: 2px solid var(--celeste);
  outline-offset: 1px;
  border-color: var(--celeste);
}
.field input[readonly] {
  background: var(--sky-soft);
}

.rates-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.7rem;
  margin-bottom: 0.4rem;
}
.rates-head > div { flex: 1 1 16rem; }
.rates-head .btn { flex: 0 0 auto; }
.field select {
  text-overflow: ellipsis;
  overflow: hidden;
}
.rates-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 0.8rem;
}
.rates-meta.ok { color: var(--ok); }
.rates-meta.error { color: var(--bad); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  border-radius: 0.7rem;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 650;
  text-decoration: none;
}
.btn:focus-visible {
  outline: 2px solid var(--celeste-dark);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--celeste-dark);
  color: #fff;
}
.btn-primary:hover { background: var(--celeste-deep); }
.btn-ghost {
  background: #fff;
  border-color: var(--line-strong);
  color: var(--celeste-dark);
}
.btn-ghost:hover { background: var(--sky); }
.btn-danger {
  background: #fff;
  border-color: #f0c2bd;
  color: var(--bad);
}
.btn-danger:hover { background: var(--bad-bg); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

.product {
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 0.9rem;
  background: var(--sky-soft);
  display: grid;
  gap: 0.75rem;
}
.product-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.product-head h3 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--navy);
  font-family: var(--font-display);
}
.products { display: grid; gap: 0.8rem; }
.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.note {
  background: var(--sky);
  border-radius: 0.7rem;
  padding: 0.75rem 0.9rem;
  font-size: 0.9rem;
  color: var(--navy);
  margin: 0.8rem 0 0;
}
.note a { font-weight: 600; }

#resultado:empty { display: none; }
#resultado {
  margin: 1.2rem 0 1.5rem;
}
.result-summary {
  display: grid;
  gap: 0.7rem;
}
.kpi {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 0.85rem 0.95rem;
}
.kpi .k {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 650;
}
.kpi .v {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.03em;
  margin-top: 0.15rem;
}
.kpi .s { font-size: 0.85rem; color: var(--muted); }
.kpi.total { background: var(--celeste-dark); border-color: var(--celeste-dark); color: #fff; }
.kpi.total .k, .kpi.total .s { color: #d7eefb; }
.kpi.total .v { color: #fff; }

.breakdown {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin-top: 0.3rem;
}
.breakdown th, .breakdown td {
  text-align: left;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.breakdown td:last-child, .breakdown th:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.breakdown .total-row td { font-weight: 700; border-bottom: 0; padding-top: 0.7rem; }

.badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  text-transform: uppercase;
}
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-bad { background: var(--bad-bg); color: var(--bad); }
.badge-neutral { background: var(--sky); color: var(--celeste-deep); }

.product-results { display: grid; gap: 0.7rem; margin-top: 0.8rem; }
.product-result {
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 0.85rem 0.95rem;
  background: #fff;
}
.product-result h3 {
  margin: 0 0 0.35rem;
  font-size: 1.02rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  font-family: var(--font-display);
  color: var(--navy);
}
.product-result p { margin: 0.2rem 0; font-size: 0.95rem; }
.product-result .diff-ok { color: var(--ok); font-weight: 700; }
.product-result .diff-bad { color: var(--bad); font-weight: 700; }

details.help {
  margin: 1rem 0 2rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.4rem 1rem 0.8rem;
}
details.help summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--navy);
  font-family: var(--font-display);
  padding: 0.7rem 0;
}
details.help ul { margin: 0.3rem 0 0.6rem; padding-left: 1.15rem; }
details.help li { margin: 0.3rem 0; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2.2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer p { margin: 0.35rem 0; }
.footer-links { margin-top: 0.7rem; }
.legal {
  padding: 1.6rem 0 2.4rem;
}
.legal h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 5vw, 2.1rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--navy);
  margin: 0 0 0.4rem;
}
.legal .updated {
  color: var(--muted);
  margin: 0 0 1.4rem;
  font-size: 0.95rem;
}
.legal h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--navy);
  margin: 1.5rem 0 0.5rem;
}
.legal p {
  margin: 0 0 0.8rem;
  max-width: 40rem;
}
.legal-back { margin-top: 1.6rem; }

.error-box {
  background: var(--bad-bg);
  color: var(--bad);
  border-radius: 0.7rem;
  padding: 0.8rem 1rem;
  font-weight: 600;
}

@media (min-width: 640px) {
  .wrap { width: min(920px, calc(100% - 2rem)); }
  .card { padding: 1.35rem 1.4rem 1.5rem; }
  .grid.cols-2 { grid-template-columns: 1fr 1fr; }
  .grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
  .grid.cols-4 { grid-template-columns: 1fr 1fr; }
  .btn-block-sm { width: auto; }
  .result-summary { grid-template-columns: 1fr 1fr; }
  .result-summary .kpi.total { grid-column: 1 / -1; }
  .product {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
  .product-head { grid-column: 1 / -1; }
  .product .field-tipo { grid-column: auto; }
  .actions-row { justify-content: flex-start; }
  .btn-block { width: auto; min-width: 12rem; }
}

@media (min-width: 900px) {
  .result-summary { grid-template-columns: repeat(4, 1fr); }
  .result-summary .kpi.total { grid-column: auto; }
}