/* ─────────────────────────────────────────────────────────────
   NIIO Pay — landing pública
   Tokens de DESIGN.md (NiioPay 2025): navy tinta como texto,
   petróleo como único CTA, cyan solo como acento. Hoja propia:
   styles.css es del checkout y docs.css arrastra la sidebar.
   ───────────────────────────────────────────────────────────── */

@font-face {
  font-family: 'RedHatDisplay';
  src: url('/fonts/RedHatDisplay-VariableFont_wght.ttf') format('truetype');
  font-weight: 300 900;
  font-display: swap;
}

:root {
  --cta: #004E72;
  --cta-hover: #005E88;
  --cta-press: #003B57;
  --on-cta: #FFFFFF;
  --accent: #2FB1ED;
  --accent-turquoise: #40E0D0;
  --ink: #171D33;
  --ink-secondary: #4A5884;
  --ink-mute: #57648E;
  --canvas: #FFFFFF;
  --canvas-soft: #F6F9FC;
  --canvas-tint: #EAF7FE;
  --hairline: #E4E7EF;
  --radius: 12px;
  --radius-lg: 16px;
  --max-w: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'RedHatDisplay', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

p { margin: 0; }

a { color: var(--cta); }

code {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.9em;
  background: var(--canvas-tint);
  color: var(--cta);
  border-radius: 6px;
  padding: 2px 6px;
}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}

.site-header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-logo { display: flex; align-items: center; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-secondary);
  text-decoration: none;
}

.site-nav a:hover { color: var(--cta); }

.site-nav-cta {
  background: var(--cta);
  color: var(--on-cta) !important;
  padding: 8px 16px;
  border-radius: 999px;
}

.site-nav-cta:hover { background: var(--cta-hover); }

.site-lang a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-mute);
  text-decoration: none;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 6px 12px;
}

.site-lang a:hover {
  color: var(--cta);
  border-color: var(--cta);
}

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  background:
    radial-gradient(ellipse 60% 80% at 15% 0%, rgba(64, 224, 208, 0.14), transparent 60%),
    radial-gradient(ellipse 70% 90% at 85% 10%, rgba(47, 177, 237, 0.16), transparent 60%),
    var(--canvas-soft);
  border-bottom: 1px solid var(--hairline);
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 72px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: 46px;
  font-weight: 600;
}

.hero-lead {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-secondary);
  max-width: 30em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-mute);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 24px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--cta);
  color: var(--on-cta);
}

.btn-primary:hover { background: var(--cta-hover); }
.btn-primary:active { background: var(--cta-press); }

.btn-secondary {
  background: var(--canvas);
  color: var(--cta);
  border-color: var(--hairline);
}

.btn-secondary:hover { border-color: var(--cta); }

/* Bloque de código del hero */
.hero-code {
  background: var(--ink);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(23, 29, 51, 0.18);
}

.hero-code-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.hero-code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.hero-code-title {
  margin-left: 8px;
  font-size: 12px;
  font-weight: 500;
  color: #7A88B0;
}

.hero-code pre {
  margin: 0;
  padding: 20px;
  overflow-x: auto;
}

.hero-code code {
  background: none;
  padding: 0;
  color: #E4E7EF;
  font-size: 12.5px;
  line-height: 1.65;
  white-space: pre;
}

.hero-code-footer {
  padding: 14px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 12.5px;
  color: #7A88B0;
}

.hero-code-footer code {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-turquoise);
}

/* ── Secciones ──────────────────────────────────────────── */
.section { padding: 72px 0; }
.section-alt { background: var(--canvas-soft); }

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section-narrow { max-width: 760px; }

.section h2 {
  font-size: 30px;
  font-weight: 600;
}

.section-lead {
  margin-top: 12px;
  font-size: 16px;
  color: var(--ink-secondary);
}

.section-narrow > p {
  margin-top: 16px;
  color: var(--ink-secondary);
}

.section-more { margin-top: 24px; }

.section-more a {
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.section-more a:hover { text-decoration: underline; }

.lang-note { color: var(--ink-mute); font-size: 14px; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.two-col p {
  margin-top: 16px;
  color: var(--ink-secondary);
}

/* ── Métodos de pago ────────────────────────────────────── */
.methods-grid {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.method-card {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.method-card img { align-self: flex-start; }

.method-logos {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
}

.method-card strong {
  font-size: 15px;
  font-weight: 600;
}

.method-card span:last-child {
  font-size: 13px;
  color: var(--ink-mute);
  line-height: 1.45;
}

/* ── Pasos ──────────────────────────────────────────────── */
.steps-grid {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}

.steps-grid li {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 24px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--canvas-tint);
  color: var(--cta);
  font-size: 14px;
  font-weight: 600;
}

.steps-grid h3 {
  margin-top: 14px;
  font-size: 17px;
  font-weight: 600;
}

.steps-grid p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-secondary);
}

/* ── Comisión ───────────────────────────────────────────── */
.fee-example {
  margin-top: 28px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--canvas);
}

.fee-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--hairline);
  font-size: 14px;
}

.fee-row strong {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.fee-row-muted { color: var(--ink-mute); }

.fee-row-total { background: var(--canvas-soft); }

.fee-row-highlight {
  border-bottom: none;
  background: var(--canvas-tint);
  color: var(--cta);
}

.fee-row-highlight strong { font-size: 16px; }

/* ── Desarrolladores ────────────────────────────────────── */
.dev-grid {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.dev-grid li {
  border-left: 2px solid var(--accent);
  padding-left: 20px;
}

.dev-grid h3 {
  font-size: 16px;
  font-weight: 600;
}

.dev-grid p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-secondary);
}

/* ── FAQ ────────────────────────────────────────────────── */
.faq-list {
  margin-top: 28px;
  border-top: 1px solid var(--hairline);
}

.faq-item {
  border-bottom: 1px solid var(--hairline);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 32px 18px 0;
  font-size: 15px;
  font-weight: 600;
  position: relative;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '';
  position: absolute;
  right: 6px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--ink-mute);
  border-bottom: 2px solid var(--ink-mute);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.15s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq-item summary:hover { color: var(--cta); }

.faq-item p {
  padding: 0 32px 20px 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-secondary);
}

/* ── CTA final ──────────────────────────────────────────── */
.cta-final {
  padding: 80px 0;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%, rgba(47, 177, 237, 0.14), transparent 65%),
    var(--canvas);
  border-top: 1px solid var(--hairline);
}

.cta-final h2 {
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.cta-final p {
  margin-top: 12px;
  color: var(--ink-secondary);
}

.cta-final .hero-actions { justify-content: center; }

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  background: var(--ink);
  color: #C9D2E8;
  padding: 56px 0 24px;
}

.site-footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 48px;
  justify-content: space-between;
}

.site-footer-brand { max-width: 320px; }

.site-footer-brand p {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.55;
  color: #8B98BE;
}

.site-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 56px;
}

.site-footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer-col-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #8B98BE;
  margin-bottom: 2px;
}

.site-footer-col a {
  font-size: 13.5px;
  color: #C9D2E8;
  text-decoration: none;
}

.site-footer-col a:hover { color: var(--accent); }

.site-footer-legal {
  max-width: var(--max-w);
  margin: 40px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 12.5px;
  color: #8B98BE;
}

.site-footer-legal a {
  color: #8B98BE;
  text-decoration: none;
}

.site-footer-legal a:hover { color: var(--accent); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner,
  .two-col {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-inner { padding: 48px 24px 56px; }
  .hero h1 { font-size: 34px; }
  .methods-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .dev-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .section h2 { font-size: 25px; }
}

@media (max-width: 640px) {
  .site-header-inner {
    flex-wrap: wrap;
    gap: 12px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 16px;
    font-size: 13px;
  }

  .site-lang { margin-left: auto; }
  .methods-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 29px; }
  .site-footer-nav { gap: 32px; }
}

/* visa-logo.svg es la variante blanca del logo (pensada para fondos oscuros).
   Sobre las cards blancas resultaba invisible, así que va sobre una pastilla
   navy en vez de alterar el color de una marca ajena. */
.logo-on-dark {
  background: var(--ink);
  border-radius: 4px;
  padding: 5px 7px;
}