/* nooki.pe — página principal. Mismos colores que el portal (variables al inicio). */
:root {
  --fondo: #fbfcfc;
  --superficie: #ffffff;
  --superficie-2: #f2f5f5;
  --borde: #e2e8e7;
  --texto: #14201d;
  --texto-suave: #55625f;
  --marca: #0f6b5c;
  --marca-fuerte: #0a5246;
  --marca-suave: #e3f2ef;
  --marca-brillo: #22c3a6;
  --oscuro: #0b1f1b;
  --oscuro-2: #12302a;
  --ok: #15803d;
  --sombra: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px rgba(16, 24, 40, .06);
  --sombra-grande: 0 24px 60px rgba(8, 40, 34, .18);
  --radio: 14px;
  --letra: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fondo: #0c1412;
    --superficie: #121c1a;
    --superficie-2: #172422;
    --borde: #24332f;
    --texto: #e7eeec;
    --texto-suave: #9fb0ab;
    --marca: #3cb39d;
    --marca-fuerte: #5fc9b5;
    --marca-suave: #15332d;
    --sombra: 0 1px 2px rgba(0, 0, 0, .4);
    --sombra-grande: 0 24px 60px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font: 16px/1.6 var(--letra);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: 2.25rem; max-width: 22ch; }
h3 { font-size: 1.08rem; letter-spacing: -.01em; margin-bottom: .45rem; }
p { margin: 0; }
a { color: var(--marca); }
:focus-visible { outline: 3px solid var(--marca-brillo); outline-offset: 3px; border-radius: 6px; }

.contenedor { max-width: 1160px; margin: 0 auto; padding: 0 1.25rem; }
.contenedor-angosto { max-width: 820px; }
.saltar { position: absolute; left: -9999px; }
.saltar:focus { left: 1rem; top: 1rem; z-index: 100; background: var(--superficie); padding: .5rem 1rem; }

/* ---------- Botones ---------- */
.boton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .85rem 1.35rem;
  border-radius: 10px;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
  white-space: nowrap;
}
.boton:hover { transform: translateY(-1px); }
.boton-primario { background: var(--marca); color: #fff; box-shadow: 0 6px 18px rgba(15, 107, 92, .28); }
.boton-primario:hover { background: var(--marca-fuerte); }
.boton-secundario { background: var(--superficie); color: var(--texto); border-color: var(--borde); }
.boton-secundario:hover { background: var(--superficie-2); }
.boton-claro { background: #fff; color: var(--oscuro); }
.boton-borde { color: #fff; border-color: rgba(255, 255, 255, .3); }
.boton-borde:hover { background: rgba(255, 255, 255, .08); }
.boton-chico { padding: .55rem 1rem; font-size: .92rem; }
@media (prefers-color-scheme: dark) {
  .boton-primario { color: #06201b; }
}

/* ---------- Barra ---------- */
.barra {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--fondo) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--borde);
}
.barra-dentro { display: flex; align-items: center; gap: 2rem; height: 68px; }
.logo { font-weight: 850; font-size: 1.55rem; letter-spacing: -.04em; color: var(--marca); text-decoration: none; }
.menu { display: flex; gap: 1.6rem; margin-left: auto; }
.menu a { color: var(--texto-suave); text-decoration: none; font-weight: 550; font-size: .95rem; }
.menu a:hover { color: var(--texto); }

/* ---------- Portada ---------- */
.portada {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(3.5rem, 8vw, 6rem);
  background:
    radial-gradient(900px 480px at 85% 10%, color-mix(in srgb, var(--marca-brillo) 16%, transparent), transparent 70%),
    radial-gradient(700px 400px at 0% 100%, color-mix(in srgb, var(--marca) 10%, transparent), transparent 70%);
}
.portada-rejilla { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3.5rem; align-items: center; }
.etiqueta-seccion {
  display: inline-block;
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--marca);
  margin-bottom: 1rem;
}
.portada h1 { font-size: clamp(2.5rem, 5.6vw, 4.2rem); letter-spacing: -.035em; margin-bottom: 1.4rem; }
.resaltado {
  background: linear-gradient(90deg, var(--marca), var(--marca-brillo));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.entrada { font-size: 1.15rem; color: var(--texto-suave); max-width: 36rem; margin-bottom: 2rem; }
.entrada strong { color: var(--texto); }
.acciones { display: flex; flex-wrap: wrap; gap: .75rem; }
.garantias { list-style: none; padding: 0; margin: 2rem 0 0; display: flex; flex-wrap: wrap; gap: .5rem 1.4rem; color: var(--texto-suave); font-size: .92rem; }
.garantias li::before { content: "✓"; color: var(--marca); font-weight: 800; margin-right: .45rem; }

/* Comprobante de muestra */
.portada-visual { position: relative; }
.tarjeta-comprobante {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: 18px;
  box-shadow: var(--sombra-grande);
  padding: 1.6rem;
  max-width: 440px;
  margin-left: auto;
  transform: rotate(1.2deg);
}
.comp-cabecera { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; padding-bottom: 1rem; border-bottom: 1px dashed var(--borde); }
.comp-tipo { display: block; font-size: .7rem; font-weight: 750; letter-spacing: .1em; color: var(--texto-suave); }
.comp-numero { display: block; font: 700 1.3rem/1.3 var(--mono); white-space: nowrap; }
.sello {
  font-size: .75rem;
  font-weight: 750;
  color: var(--ok);
  background: color-mix(in srgb, var(--ok) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--ok) 35%, transparent);
  padding: .3rem .6rem;
  border-radius: 999px;
  white-space: nowrap;
}
.comp-cliente { padding: 1rem 0; display: grid; gap: .1rem; font-size: .9rem; }
.comp-cliente span, .comp-cliente small { color: var(--texto-suave); font-size: .78rem; }
.comp-items { width: 100%; border-collapse: collapse; font-size: .88rem; }
.comp-items td { padding: .45rem 0; border-top: 1px solid var(--borde); }
.comp-items td:nth-child(2) { text-align: center; color: var(--texto-suave); width: 3rem; }
.comp-items td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.comp-total { display: grid; grid-template-columns: 1fr auto; gap: .25rem 1rem; padding: .9rem 0 1.1rem; border-top: 1px solid var(--borde); font-size: .9rem; font-variant-numeric: tabular-nums; }
.comp-total span { color: var(--texto-suave); }
.comp-total b { font-size: 1.15rem; }
.comp-linea { list-style: none; margin: 0; padding: .9rem 0 0; border-top: 1px dashed var(--borde); display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem; font-size: .72rem; color: var(--texto-suave); text-align: center; }
.comp-linea span { display: block; width: 22px; height: 22px; margin: 0 auto .35rem; border-radius: 50%; background: var(--marca); position: relative; }
.comp-linea span::after { content: "✓"; position: absolute; inset: 0; display: grid; place-items: center; color: #fff; font-size: .7rem; font-weight: 800; }
.burbuja {
  position: absolute;
  left: -.5rem;
  bottom: -2.6rem;
  background: var(--oscuro);
  color: #d7ebe6;
  border-radius: 12px;
  padding: .8rem 1rem;
  box-shadow: var(--sombra-grande);
  display: grid;
  gap: .2rem;
  transform: rotate(-2deg);
}
.burbuja code { font: .82rem/1.4 var(--mono); }
.burbuja b { color: var(--marca-brillo); }
.burbuja .ok { color: #8ee6c9; }

/* ---------- Secciones ---------- */
.seccion { padding: clamp(4rem, 9vw, 6.5rem) 0; }
.seccion-alterna { background: var(--superficie-2); }

.pasos { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; counter-reset: paso; }
.pasos li { background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--radio); padding: 1.75rem; box-shadow: var(--sombra); }
.numero {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--marca-suave);
  color: var(--marca);
  font-weight: 800;
  margin-bottom: 1.1rem;
}
.pasos p, .funciones p, .publicos p, .confianza p { color: var(--texto-suave); font-size: .97rem; }

.funciones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.funciones article { background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--radio); padding: 1.5rem; }
.funciones svg { width: 30px; height: 30px; margin-bottom: 1rem; fill: none; stroke: var(--marca); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.publicos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.publicos article { padding: 1.75rem; border-radius: var(--radio); border: 1px solid var(--borde); background: linear-gradient(180deg, var(--superficie), var(--superficie-2)); }

/* Desarrolladores */
.seccion-oscura { background: var(--oscuro); color: #e6f1ee; }
.seccion-oscura h2 { color: #fff; margin-bottom: 1.25rem; }
.seccion-oscura .etiqueta-seccion { color: var(--marca-brillo); }
.seccion-oscura p { color: #a9c2bb; margin-bottom: 1.5rem; }
.dev-rejilla { display: grid; grid-template-columns: .9fr 1.1fr; gap: 3.5rem; align-items: center; }
.lista-check { list-style: none; padding: 0; margin: 0 0 2rem; display: grid; gap: .6rem; }
.lista-check li::before { content: "✓"; color: var(--marca-brillo); font-weight: 800; margin-right: .6rem; }
.codigo {
  margin: 0;
  background: var(--oscuro-2);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radio);
  padding: 1.5rem;
  overflow-x: auto;
  font: .86rem/1.65 var(--mono);
  color: #dce9e5;
  box-shadow: 0 30px 60px rgba(0, 0, 0, .35);
}
.codigo .k { color: #7fd8c4; }
.codigo .s { color: #f2c48d; }
.codigo .n { color: #b8a6ff; }
.codigo .c { color: #6f8c85; }

.confianza { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.confianza div { border-top: 3px solid var(--marca); padding-top: 1.25rem; }

/* Preguntas */
.preguntas { display: grid; gap: .75rem; }
.preguntas details { background: var(--superficie); border: 1px solid var(--borde); border-radius: 12px; padding: 0 1.25rem; }
.preguntas summary { cursor: pointer; padding: 1.1rem 0; font-weight: 650; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.preguntas summary::-webkit-details-marker { display: none; }
.preguntas summary::after { content: "+"; color: var(--marca); font-size: 1.3rem; line-height: 1; transition: transform .2s ease; }
.preguntas details[open] summary::after { transform: rotate(45deg); }
.preguntas details p { color: var(--texto-suave); padding-bottom: 1.2rem; }

/* Llamado final */
.llamado { background: linear-gradient(120deg, var(--marca-fuerte), var(--marca) 55%, #138c76); color: #fff; }
.llamado-dentro { display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; }
.llamado h2 { color: #fff; margin-bottom: .6rem; }
.llamado p { color: rgba(255, 255, 255, .85); max-width: 34rem; }
@media (prefers-color-scheme: dark) {
  .llamado { background: linear-gradient(120deg, #0a3d34, #0f5c4f 55%, #127a67); }
}

/* Pie */
.pie { padding: 2.5rem 0; border-top: 1px solid var(--borde); color: var(--texto-suave); font-size: .92rem; }
.pie-dentro { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.pie .logo { font-size: 1.3rem; }
.pie nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.pie nav a { color: var(--texto-suave); text-decoration: none; }
.pie nav a:hover { color: var(--marca); }

/* ---------- Pantallas medianas y celular ---------- */
@media (max-width: 1000px) {
  .funciones { grid-template-columns: repeat(2, 1fr); }
  .menu { display: none; }
  .barra-dentro { justify-content: space-between; }
}
@media (max-width: 860px) {
  .portada-rejilla, .dev-rejilla { grid-template-columns: 1fr; }
  .tarjeta-comprobante { margin: 0 auto; transform: none; }
  .burbuja { left: .5rem; }
  .pasos, .publicos, .confianza { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .funciones { grid-template-columns: 1fr; }
  .acciones .boton { flex: 1 1 100%; }
  .barra .boton-chico { padding: .5rem .8rem; }
  .burbuja { display: none; }
  .comp-linea { font-size: .65rem; }
  .tarjeta-comprobante { padding: 1.2rem; }
  .comp-cabecera { flex-direction: column; gap: .6rem; }
}
.titulo-404 { font-size: clamp(2rem, 5vw, 3rem); margin: 2.5rem 0 1rem; }