:root {
  --crema: #FBFAF6;
  --crema-2: #F4F1E9;
  --arena: #E8E0D4;
  --oro: #D4AF52;
  --oro-oscuro: #C99A3E;
  --oro-texto: #9A7426;
  --carbon: #2C2C2C;
  --carbon-suave: #4A4740;
  --tinta-suave: #6E685C;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", -apple-system, "Segoe UI", sans-serif;
  --ancho: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--carbon);
  background: var(--crema);
  -webkit-font-smoothing: antialiased;
}

.contenedor {
  max-width: var(--ancho);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.contenedor-angosto { max-width: 760px; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 420;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.5rem, 6.5vw, 4.6rem); }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); margin-bottom: 1.25rem; }
h3 { font-size: 1.35rem; }

a { color: inherit; }

::selection { background: var(--oro); color: var(--crema); }

/* ---------- Navegación ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.nav.solida {
  background: rgba(251, 250, 246, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--arena);
}

.nav-interior {
  max-width: var(--ancho);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.marca {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 520;
  letter-spacing: 0.22em;
  text-decoration: none;
}

.marca-punto { color: var(--oro-oscuro); }

.nav-enlaces {
  display: flex;
  gap: 2rem;
}

.nav-enlaces a {
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--carbon-suave);
  transition: color 0.2s ease;
}

.nav-enlaces a:hover { color: var(--oro-texto); }

.nav-menu {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 7px;
}

.nav-menu span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--carbon);
  transition: transform 0.25s ease;
}

.nav-menu[aria-expanded="true"] span:first-child { transform: translateY(4.25px) rotate(45deg); }
.nav-menu[aria-expanded="true"] span:last-child { transform: translateY(-4.25px) rotate(-45deg); }

.nav-movil {
  display: none;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--crema);
  border-bottom: 1px solid var(--arena);
}

.nav-movil a {
  text-decoration: none;
  font-weight: 500;
  font-size: 1.05rem;
}

.nav-movil.abierto { display: flex; }

/* ---------- Botones ---------- */

.boton {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  text-align: center;
  padding: 0.9rem 1.9rem;
  border: 1.5px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.boton:hover { transform: translateY(-2px); }
.boton:active { transform: translateY(0); }

.boton-oro { background: var(--oro-oscuro); color: var(--crema); }
.boton-oro:hover { background: var(--oro); }

.boton-carbon { background: var(--carbon); color: var(--crema); padding: 0.65rem 1.3rem; font-size: 0.875rem; }
.boton-carbon:hover { background: var(--carbon-suave); }

.boton-borde { border-color: var(--carbon); color: var(--carbon); background: transparent; }
.boton-borde:hover { background: var(--carbon); color: var(--crema); }

.boton-bloque { width: 100%; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 9rem 0 6rem;
  overflow: hidden;
}

.hero-contenido { position: relative; }

.hero-bajada {
  max-width: 540px;
  margin: 1.75rem 0 2.5rem;
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--tinta-suave);
}

.hero-acciones {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------- Vetas doradas ---------- */

.veta {
  position: absolute;
  left: 0;
  width: 100%;
  pointer-events: none;
}

.veta-hero { top: 8%; height: 60%; opacity: 0.55; }
.veta-filosofia { top: 0; height: 30%; opacity: 0.5; }

.veta-trazo {
  fill: none;
  stroke: var(--oro);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-dasharray: 2400;
  stroke-dashoffset: 2400;
  animation: dibujar 3.2s ease-out forwards;
}

.veta-fina { stroke-width: 1; animation-delay: 1.1s; animation-duration: 2s; }

@keyframes dibujar {
  to { stroke-dashoffset: 0; }
}

/* ---------- Secciones ---------- */

.seccion { padding: 6.5rem 0; }
.seccion-crema { background: var(--crema-2); }
.seccion-arena { background: var(--arena); position: relative; overflow: hidden; }

.cejilla {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--oro-texto);
  margin-bottom: 1.1rem;
}

.cejilla-clara { color: var(--oro); }

.parrafo-ancho {
  max-width: 680px;
  color: var(--tinta-suave);
  margin-bottom: 3.5rem;
}

/* ---------- Pilares ---------- */

.pilares {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem;
}

.pilar {
  border-top: 1px solid var(--arena);
  padding-top: 1.75rem;
}

.pilar-numero {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--oro-oscuro);
  display: block;
  margin-bottom: 0.9rem;
}

.pilar h3 { margin-bottom: 0.7rem; }

.pilar p { color: var(--tinta-suave); font-size: 0.98rem; }

/* ---------- Dos caminos ---------- */

.caminos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.camino {
  background: var(--crema);
  border: 1px solid var(--arena);
  padding: 2.5rem 2.25rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.camino:hover { transform: translateY(-4px); border-color: var(--oro); }

.camino-indice {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--oro-oscuro);
  border-radius: 50%;
  color: var(--oro-texto);
  font-size: 1rem;
  margin-right: 0.6rem;
  vertical-align: 0.1em;
}

.camino h3 { font-size: 1.6rem; margin-bottom: 1rem; }

.camino > p { color: var(--tinta-suave); margin-bottom: 1.5rem; }

.camino ul {
  list-style: none;
  margin-bottom: 2rem;
  flex: 1;
}

.camino li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.7rem;
  font-size: 0.95rem;
  color: var(--carbon-suave);
}

.camino li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05rem;
  width: 1rem;
  height: 1.5px;
  background: var(--oro);
}

.enlace-oro {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--oro-texto);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.enlace-oro:hover { color: var(--oro-oscuro); }

/* ---------- Proceso ---------- */

.pasos {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.paso { border-top: 1px solid var(--arena); padding-top: 1.5rem; }

.paso-numero {
  font-family: var(--serif);
  font-size: 2.2rem;
  color: var(--oro);
  display: block;
  margin-bottom: 0.8rem;
}

.paso h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }

.paso p { font-size: 0.93rem; color: var(--tinta-suave); }

/* ---------- Filosofía ---------- */

.seccion-arena .contenedor { position: relative; }

.filosofia-texto {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 340;
  line-height: 1.6;
  color: var(--carbon);
  margin: 1.5rem 0;
}

.filosofia-firma {
  font-weight: 600;
  color: var(--oro-texto);
  letter-spacing: 0.02em;
}

/* ---------- Contacto ---------- */

.seccion-carbon {
  background: var(--carbon);
  color: var(--crema);
}

.contacto {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 1.15fr);
  gap: 4rem;
  align-items: start;
}

.contacto-texto > p { color: #B9B4A8; max-width: 420px; }

.contacto-garantias {
  list-style: none;
  margin-top: 2rem;
}

.contacto-garantias li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.8rem;
  color: #D9D4C8;
  font-size: 0.97rem;
}

.contacto-garantias li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.15rem;
  width: 1rem;
  height: 1.5px;
  background: var(--oro);
}

.formulario { display: grid; gap: 1.25rem; }

.campos-dobles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.campo { display: grid; gap: 0.4rem; }

.campo label {
  font-size: 0.85rem;
  font-weight: 500;
  color: #D9D4C8;
}

.opcional { color: #8C8779; font-weight: 400; }

.campo input,
.campo select,
.campo textarea {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--crema);
  background: #3A3A38;
  border: 1px solid #55534D;
  border-radius: 2px;
  padding: 0.8rem 1rem;
  width: 100%;
  transition: border-color 0.2s ease;
}

.campo input::placeholder,
.campo textarea::placeholder { color: #7D796E; }

.campo input:focus,
.campo select:focus,
.campo textarea:focus {
  outline: none;
  border-color: var(--oro);
}

.campo select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, #B9B4A8 50%), linear-gradient(135deg, #B9B4A8 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }

textarea { resize: vertical; }

.campo-oculto {
  position: absolute !important;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.campo input.invalido { border-color: #C96A4A; }

.formulario-error {
  color: #E8A288;
  font-size: 0.92rem;
}

.formulario-nota {
  font-size: 0.82rem;
  color: #8C8779;
  text-align: center;
}

.formulario-exito {
  border: 1px solid #55534D;
  padding: 3rem 2.5rem;
  text-align: center;
}

.formulario-exito svg { width: 72px; margin-bottom: 1rem; }

.formulario-exito h3 { margin-bottom: 0.75rem; font-size: 1.5rem; }

.formulario-exito p { color: #B9B4A8; }

.boton[disabled] { opacity: 0.6; cursor: wait; transform: none; }

/* ---------- Pie ---------- */

.pie { background: var(--crema); border-top: 1px solid var(--arena); padding-top: 3.5rem; }

.pie-interior {
  display: flex;
  justify-content: space-between;
  gap: 2.5rem;
  flex-wrap: wrap;
  padding-bottom: 2.5rem;
}

.pie .marca { font-size: 1.15rem; }

.pie-bajada {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  color: var(--tinta-suave);
}

.pie-enlaces {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
  align-items: start;
}

.pie-enlaces a {
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--carbon-suave);
}

.pie-enlaces a:hover { color: var(--oro-texto); }

.pie-legal {
  border-top: 1px solid var(--arena);
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

.pie-legal p { font-size: 0.8rem; color: var(--tinta-suave); }

/* ---------- Animaciones de scroll ---------- */

.revelar {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.revelar.visible { opacity: 1; transform: none; }

.retardo-1 { transition-delay: 0.12s; }
.retardo-2 { transition-delay: 0.24s; }
.retardo-3 { transition-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .revelar { opacity: 1; transform: none; transition: none; }
  .veta-trazo { animation: none; stroke-dashoffset: 0; }
  .boton:hover, .camino:hover { transform: none; }
}

/* ---------- Responsive ---------- */

.salto-md { display: none; }

@media (min-width: 720px) {
  .salto-md { display: inline; }
}

@media (max-width: 860px) {
  .nav-enlaces, .nav-cta { display: none; }
  .nav-menu { display: flex; }
  .nav { background: rgba(251, 250, 246, 0.92); backdrop-filter: blur(12px); }
  .contacto { grid-template-columns: 1fr; gap: 2.5rem; }
  .seccion { padding: 4.5rem 0; }
  .hero { min-height: 0; padding: 8rem 0 4.5rem; }
}

@media (max-width: 540px) {
  .campos-dobles { grid-template-columns: 1fr; }
  .hero-acciones .boton { width: 100%; }
}