/* =====================================================================
   Monitraffic — hoja de estilo única
   Sin dependencias externas: tipografías del sistema, cero peticiones
   adicionales. Carga instantánea y nada que se caiga si un CDN falla.
   ===================================================================== */

:root {
  --tinta:      #0F1115;
  --carbon:     #171A20;
  --grafito:    #2A2E36;
  --papel:      #FBFAF8;
  --niebla:     #F1EFEB;
  --borde:      #E2DFD9;
  --gris:       #6B7078;
  --gris-claro: #9AA0A8;
  --acento:     #B4703A;
  --acento-vivo:#C88347;
  --acento-piel:#F6EEE6;
  --verde:      #3F7A5E;
  --rojo:       #9E3B32;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --anchura: 1160px;
  --radio: 10px;
  --sombra: 0 1px 2px rgba(15,17,21,.04), 0 8px 28px rgba(15,17,21,.06);
  --transicion: 260ms cubic-bezier(.22,.61,.36,1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--tinta);
  background: var(--papel);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -.015em; margin: 0; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); line-height: 1.08; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); line-height: 1.18; }
h3 { font-size: 1.22rem; line-height: 1.3; }
p  { margin: 0 0 1.1em; }
a  { color: inherit; }

.contenedor { width: 100%; max-width: var(--anchura); margin: 0 auto; padding: 0 28px; }
.centrado { text-align: center; }
.oculto { display: none !important; }

/* --------------------------------------------------------- Cabecera */
.cabecera {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding: 18px 0;
  transition: background var(--transicion), border-color var(--transicion), padding var(--transicion);
  border-bottom: 1px solid transparent;
}
.cabecera.pegada {
  background: rgba(251,250,248,.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--borde);
  padding: 12px 0;
}
.cabecera__fila { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--papel); transition: color var(--transicion); }
.cabecera.pegada .logo, body.claro .logo { color: var(--tinta); }
.logo__marca { display: block; }
.logo__texto { font-family: var(--serif); font-size: 1.32rem; letter-spacing: -.02em; }
.logo__texto b { font-weight: 400; }
.logo__texto span { color: var(--acento-vivo); }

.nav { display: flex; align-items: center; gap: 30px; }
.nav a {
  text-decoration: none; font-size: .93rem; color: rgba(251,250,248,.78);
  transition: color var(--transicion); position: relative; padding: 4px 0;
}
.nav a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--acento-vivo); transition: width var(--transicion);
}
.nav a:hover::after { width: 100%; }
.nav a:hover { color: var(--papel); }
.cabecera.pegada .nav a { color: var(--gris); }
.cabecera.pegada .nav a:hover { color: var(--tinta); }

/* --------------------------------------------------------- Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--sans); font-size: .93rem; font-weight: 500;
  padding: 11px 22px; border-radius: var(--radio);
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: all var(--transicion); white-space: nowrap;
}
.btn--principal { background: var(--acento); color: #fff; border-color: var(--acento); }
.btn--principal:hover { background: var(--acento-vivo); border-color: var(--acento-vivo); transform: translateY(-1px); }
.btn--fantasma { background: transparent; color: var(--papel); border-color: rgba(251,250,248,.28); }
.btn--fantasma:hover { border-color: rgba(251,250,248,.6); background: rgba(251,250,248,.06); }
.cabecera.pegada .btn--fantasma { color: var(--tinta); border-color: var(--borde); }
.cabecera.pegada .btn--fantasma:hover { border-color: var(--gris); background: transparent; }
.btn--linea { background: transparent; color: var(--tinta); border-color: var(--borde); }
.btn--linea:hover { border-color: var(--tinta); }
.btn--bloque { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }
.btn--pequeno { padding: 7px 14px; font-size: .84rem; }

/* --------------------------------------------------------- Hamburguesa */
.hamburguesa {
  display: none; width: 42px; height: 42px; border: 0; background: transparent;
  cursor: pointer; padding: 10px; border-radius: 8px;
}
.hamburguesa span {
  display: block; height: 1.5px; background: var(--papel); border-radius: 2px;
  transition: transform var(--transicion), opacity var(--transicion), background var(--transicion);
}
.hamburguesa span + span { margin-top: 5px; }
.cabecera.pegada .hamburguesa span { background: var(--tinta); }
.hamburguesa[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburguesa[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburguesa[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.menu-movil {
  position: fixed; inset: 0; z-index: 99;
  background: var(--tinta);
  display: flex; flex-direction: column; justify-content: center; gap: 6px;
  padding: 40px 32px;
  opacity: 0; visibility: hidden; transition: opacity var(--transicion), visibility var(--transicion);
}
.menu-movil.abierto { opacity: 1; visibility: visible; }
.menu-movil a {
  font-family: var(--serif); font-size: 2rem; color: var(--papel);
  text-decoration: none; padding: 12px 0; border-bottom: 1px solid rgba(251,250,248,.1);
}
.menu-movil a:last-of-type { border-bottom: 0; }
.menu-movil .btn { margin-top: 22px; }

/* --------------------------------------------------------- Hero */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  background: var(--tinta); color: var(--papel); overflow: hidden;
  padding: 120px 0 80px;
}
.hero__lienzo { position: absolute; inset: 0; opacity: .5; }
.hero__velo {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 60% at 20% 45%, rgba(15,17,21,.15) 0%, rgba(15,17,21,.88) 70%);
}
.hero__contenido { position: relative; z-index: 2; max-width: 760px; }
.hero__etiqueta {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--acento-vivo); margin-bottom: 26px;
  padding: 6px 14px; border: 1px solid rgba(200,131,71,.3); border-radius: 100px;
}
.punto {
  width: 6px; height: 6px; border-radius: 50%; background: var(--acento-vivo);
  animation: latido 2.4s ease-in-out infinite;
}
@keyframes latido { 0%,100% { opacity: 1; } 50% { opacity: .25; } }

.hero h1 { margin-bottom: 24px; }
.hero h1 em { font-style: italic; color: var(--acento-vivo); }
.hero__bajada { font-size: 1.17rem; color: rgba(251,250,248,.72); max-width: 580px; margin-bottom: 34px; }
.hero__acciones { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__pie {
  position: absolute; left: 0; right: 0; bottom: 30px; z-index: 2;
  font-size: .82rem; color: rgba(251,250,248,.42);
}

/* --------------------------------------------------------- Secciones */
.seccion { padding: 110px 0; }
.seccion--niebla { background: var(--niebla); }
.seccion--tinta { background: var(--tinta); color: var(--papel); }

.rotulo {
  font-size: .76rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--acento); margin-bottom: 14px; font-weight: 600;
}
.seccion--tinta .rotulo { color: var(--acento-vivo); }
.entradilla { font-size: 1.1rem; color: var(--gris); max-width: 620px; }
.seccion--tinta .entradilla { color: rgba(251,250,248,.66); }
.cabeza-seccion { margin-bottom: 56px; }

/* --------------------------------------------------------- Pasos */
.rejilla-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.paso {
  background: var(--papel); border: 1px solid var(--borde); border-radius: var(--radio);
  padding: 32px 28px; transition: transform var(--transicion), box-shadow var(--transicion);
}
.paso:hover { transform: translateY(-3px); box-shadow: var(--sombra); }
.paso__num {
  font-family: var(--serif); font-size: 2.4rem; color: var(--acento);
  line-height: 1; margin-bottom: 16px; opacity: .85;
}
.paso h3 { margin-bottom: 10px; }
.paso p { color: var(--gris); font-size: .96rem; margin: 0; }

/* --------------------------------------------------------- Demo */
.demo { display: grid; grid-template-columns: 380px 1fr; gap: 34px; align-items: start; }
.panel-caja {
  background: var(--papel); border: 1px solid var(--borde);
  border-radius: var(--radio); padding: 26px;
}
.seccion--tinta .panel-caja { background: var(--carbon); border-color: var(--grafito); }

.campo { margin-bottom: 16px; }
.campo label {
  display: block; font-size: .82rem; font-weight: 500; margin-bottom: 6px; color: var(--gris);
}
.seccion--tinta .campo label { color: var(--gris-claro); }
.campo input, .campo select {
  width: 100%; padding: 11px 13px; font-family: var(--sans); font-size: .95rem;
  border: 1px solid var(--borde); border-radius: 8px; background: var(--papel); color: var(--tinta);
  transition: border-color var(--transicion), box-shadow var(--transicion);
}
.seccion--tinta .campo input, .seccion--tinta .campo select {
  background: var(--tinta); border-color: var(--grafito); color: var(--papel);
}
.campo input:focus, .campo select:focus {
  outline: 0; border-color: var(--acento); box-shadow: 0 0 0 3px rgba(180,112,58,.14);
}
.campo__ayuda { font-size: .78rem; color: var(--gris-claro); margin-top: 5px; }
.fila-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.aviso-demo {
  background: rgba(200,131,71,.09); border: 1px solid rgba(200,131,71,.24);
  border-radius: 8px; padding: 13px 15px; font-size: .82rem;
  color: var(--acento-vivo); margin-bottom: 18px; line-height: 1.5;
}
.seccion--tinta .aviso-demo { color: #E0A874; }

.resultado { min-height: 300px; }
.grafica-caja {
  background: var(--carbon); border: 1px solid var(--grafito);
  border-radius: var(--radio); padding: 22px; margin-bottom: 18px;
}
.grafica-caja h4 { margin: 0 0 4px; font-family: var(--sans); font-size: .9rem; font-weight: 600; }
.grafica-caja .sub { font-size: .8rem; color: var(--gris-claro); margin-bottom: 16px; }
canvas { width: 100%; height: 210px; display: block; }

.cifras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.cifra {
  background: var(--carbon); border: 1px solid var(--grafito);
  border-radius: 8px; padding: 15px;
}
.cifra__v { font-family: var(--serif); font-size: 1.55rem; line-height: 1.1; }
.cifra__e { font-size: .73rem; color: var(--gris-claro); margin-top: 3px; }

pre.json {
  background: var(--carbon); border: 1px solid var(--grafito); border-radius: var(--radio);
  padding: 18px; overflow-x: auto; font-family: var(--mono); font-size: .78rem;
  line-height: 1.6; color: #C9CED6; margin: 0; max-height: 320px;
}
.json .k { color: #E0A874; }
.json .s { color: #8FB89B; }
.json .n { color: #97AFD4; }
.json .b { color: #C08A8A; }

.cargando { display: flex; align-items: center; gap: 10px; color: var(--gris-claro); font-size: .9rem; padding: 40px 0; }
.girador {
  width: 15px; height: 15px; border: 2px solid var(--grafito);
  border-top-color: var(--acento-vivo); border-radius: 50%;
  animation: gira .7s linear infinite;
}
@keyframes gira { to { transform: rotate(360deg); } }

/* --------------------------------------------------------- Precio */
.precio-caja {
  max-width: 460px; margin: 0 auto; background: var(--papel);
  border: 1px solid var(--borde); border-radius: 14px; padding: 40px 36px;
  box-shadow: var(--sombra); text-align: center;
}
.precio-caja__cifra { font-family: var(--serif); font-size: 4rem; line-height: 1; margin: 18px 0 4px; }
.precio-caja__cifra sup { font-size: 1.5rem; vertical-align: super; color: var(--gris); }
.precio-caja__periodo { color: var(--gris); font-size: .95rem; margin-bottom: 26px; }
.lista-marcas { list-style: none; padding: 0; margin: 0 0 28px; text-align: left; }
.lista-marcas li {
  display: flex; gap: 11px; align-items: flex-start;
  padding: 9px 0; font-size: .94rem; border-bottom: 1px solid var(--borde);
}
.lista-marcas li:last-child { border-bottom: 0; }
.marca { color: var(--verde); flex-shrink: 0; margin-top: 3px; }

/* --------------------------------------------------------- Acceso */
.acceso { max-width: 440px; margin: 0 auto; }
.pestanas { display: flex; gap: 4px; background: var(--niebla); padding: 4px; border-radius: 10px; margin-bottom: 26px; }
.pestana {
  flex: 1; padding: 9px; border: 0; background: transparent; cursor: pointer;
  font-family: var(--sans); font-size: .92rem; font-weight: 500; color: var(--gris);
  border-radius: 7px; transition: all var(--transicion);
}
.pestana.activa { background: var(--papel); color: var(--tinta); box-shadow: 0 1px 3px rgba(15,17,21,.08); }

.mensaje { padding: 12px 15px; border-radius: 8px; font-size: .88rem; margin-bottom: 16px; line-height: 1.5; }
.mensaje--error { background: rgba(158,59,50,.08); border: 1px solid rgba(158,59,50,.22); color: var(--rojo); }
.mensaje--ok { background: rgba(63,122,94,.08); border: 1px solid rgba(63,122,94,.22); color: var(--verde); }

/* --------------------------------------------------------- Panel */
.panel-app { min-height: 100vh; background: var(--niebla); padding-top: 84px; }
.panel-cab {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; flex-wrap: wrap; margin-bottom: 34px;
}
.tarjetas { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 20px; }
.tarjeta {
  background: var(--papel); border: 1px solid var(--borde);
  border-radius: var(--radio); padding: 24px; transition: box-shadow var(--transicion);
}
.tarjeta:hover { box-shadow: var(--sombra); }
.tarjeta__cab { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 6px; }
.tarjeta__cab h3 { font-size: 1.08rem; }
.tarjeta__meta { font-size: .84rem; color: var(--gris); margin-bottom: 16px; }

.insignia {
  font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; font-weight: 600;
  padding: 3px 9px; border-radius: 100px; white-space: nowrap;
}
.insignia--activa { background: rgba(63,122,94,.1); color: var(--verde); }
.insignia--prueba { background: rgba(180,112,58,.12); color: var(--acento); }
.insignia--aviso  { background: rgba(158,59,50,.09); color: var(--rojo); }

.endpoint {
  font-family: var(--mono); font-size: .74rem; background: var(--niebla);
  border: 1px solid var(--borde); border-radius: 7px; padding: 9px 11px;
  word-break: break-all; color: var(--gris); margin-bottom: 12px;
}
.llave-nueva {
  background: var(--tinta); color: #8FB89B; font-family: var(--mono); font-size: .78rem;
  padding: 13px; border-radius: 8px; word-break: break-all; margin: 10px 0;
}
.vacio { text-align: center; padding: 70px 24px; color: var(--gris); }
.vacio h3 { margin-bottom: 8px; color: var(--tinta); }

/* --------------------------------------------------------- Modal */
.modal {
  position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center;
  background: rgba(15,17,21,.55); padding: 24px;
  opacity: 0; visibility: hidden; transition: opacity var(--transicion), visibility var(--transicion);
}
.modal.abierto { opacity: 1; visibility: visible; }
.modal__caja {
  background: var(--papel); border-radius: 14px; padding: 32px;
  width: 100%; max-width: 520px; max-height: 88vh; overflow-y: auto;
  transform: translateY(10px); transition: transform var(--transicion);
}
.modal.abierto .modal__caja { transform: translateY(0); }
.modal__cab { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.cerrar { border: 0; background: transparent; font-size: 1.5rem; cursor: pointer; color: var(--gris); line-height: 1; padding: 4px 8px; }

/* --------------------------------------------------------- Pie */
.pie { background: var(--tinta); color: rgba(251,250,248,.5); padding: 56px 0 40px; font-size: .87rem; }
.pie__fila { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: center; }
.pie a { color: rgba(251,250,248,.7); text-decoration: none; }
.pie a:hover { color: var(--papel); }
.pie__nota { margin-top: 26px; padding-top: 22px; border-top: 1px solid rgba(251,250,248,.1); font-size: .8rem; line-height: 1.6; max-width: 720px; }

/* --------------------------------------------------------- Adaptable */
@media (max-width: 980px) {
  .demo { grid-template-columns: 1fr; }
  .rejilla-3 { grid-template-columns: 1fr; gap: 18px; }
  .cifras { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav, .cabecera .btn { display: none; }
  .hamburguesa { display: block; }
  .seccion { padding: 76px 0; }
  .contenedor { padding: 0 20px; }
  .hero { min-height: 92svh; padding: 110px 0 70px; }
  .hero__acciones { flex-direction: column; align-items: stretch; }
  .hero__acciones .btn { width: 100%; }
  .hero__pie { display: none; }
  .precio-caja { padding: 32px 24px; }
  .fila-2 { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}