/* ==========================================================================
   MMT-Sys — identidad púrpura metalizado sobre negro
   ========================================================================== */

:root {
  --fondo: #0d0a14;
  --fondo-panel: #14101e;
  --purpura-prof: #2e1e5c;
  --purpura-prof2: #4a2f8f;
  --purpura: #6d4aff;
  --lila: #b9a6ff;
  --plata: #e8e2f7;
  --texto: #d9d4e8;
  --texto-suave: #9690aa;
  --borde: rgba(185, 166, 255, 0.14);
  --metal: linear-gradient(115deg, #3a266e 0%, #7c5cff 30%, #ece6fc 50%, #9678ff 64%, #2e1e5c 100%);
  --fuente-display: "Space Grotesk", system-ui, sans-serif;
  --fuente-texto: "Manrope", system-ui, sans-serif;
  --ancho: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--fondo);
  color: var(--texto);
  font-family: var(--fuente-texto);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.contenedor { max-width: var(--ancho); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--fuente-display); font-weight: 700; color: var(--plata); line-height: 1.15; }

/* ---- texto metálico ---- */
.metal {
  background: var(--metal);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: brillo 7s ease-in-out infinite;
}
@keyframes brillo {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ---- etiqueta de sección ---- */
.etiqueta {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lila);
  margin-bottom: 16px;
}

/* ---- botones ---- */
.boton {
  display: inline-block;
  font-family: var(--fuente-display);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  border-radius: 12px;
  padding: 13px 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.boton--metal {
  background: linear-gradient(115deg, #4a2f8f, #7c5cff 45%, #a88fff);
  color: #fff;
  box-shadow: 0 8px 28px rgba(109, 74, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.boton--metal:hover { transform: translateY(-2px); box-shadow: 0 12px 34px rgba(109, 74, 255, 0.5), inset 0 1px 0 rgba(255,255,255,0.25); }
.boton--contorno {
  color: var(--plata);
  border: 1px solid var(--borde);
  background: rgba(185, 166, 255, 0.04);
}
.boton--contorno:hover { background: rgba(185, 166, 255, 0.10); transform: translateY(-2px); }
.boton--grande { font-size: 19px; padding: 16px 36px; }

/* ==========================================================================
   Cabecera
   ========================================================================== */
.cabecera {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(13, 10, 20, 0.72);
  border-bottom: 1px solid var(--borde);
}
.cabecera__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.marca__gema { width: 26px; height: 32px; filter: drop-shadow(0 0 10px rgba(109, 74, 255, 0.5)); }
.marca__nombre {
  font-family: var(--fuente-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.14em;
  color: var(--plata);
}
.marca__guion { color: var(--purpura); }
.nav { display: flex; gap: 28px; }
.nav a {
  color: var(--texto-suave);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  transition: color 0.2s ease;
}
.nav a:hover { color: var(--plata); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; overflow: hidden; padding: 110px 0 130px; }
.hero__luz {
  position: absolute;
  top: -40%;
  left: -20%;
  width: 70%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(109, 74, 255, 0.22), transparent 65%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  align-items: center;
  gap: 48px;
}
.hero h1 { font-size: clamp(34px, 4.6vw, 58px); margin-bottom: 22px; }
.hero__sub { font-size: 19px; color: var(--texto-suave); max-width: 54ch; margin-bottom: 34px; }
.hero__acciones { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__gema { position: relative; display: flex; justify-content: center; }
/* ---- Gema 3D (bipirámide de 8 caras, colores y proporciones del logo) ---- */
.gema3d-escena { width: 202px; height: 269px; perspective: 1100px; }
.gema3d-tilt { width: 100%; height: 100%; transform-style: preserve-3d; transform: rotateX(-18deg); }
.gema3d {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  animation: girar3d 16s linear infinite;
  will-change: transform;
}
@keyframes girar3d {
  0% { transform: rotateY(45deg); }
  100% { transform: rotateY(405deg); }
}
.cara { position: absolute; left: 0; width: 202px; backface-visibility: hidden; }
.cara--t {
  top: -61px;
  height: 114px;
  transform-origin: 50% 100%;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}
.cara--b {
  top: 53px;
  height: 238px;
  transform-origin: 50% 0;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}
/* corona: plata y lila alternadas, como el logo */
.cara--t0 { transform: rotateY(0deg)   translateZ(101px) rotateX(62.3deg); background: var(--lila); }
.cara--t1 { transform: rotateY(90deg)  translateZ(101px) rotateX(62.3deg); background: var(--plata); }
.cara--t2 { transform: rotateY(180deg) translateZ(101px) rotateX(62.3deg); background: var(--lila); }
.cara--t3 { transform: rotateY(270deg) translateZ(101px) rotateX(62.3deg); background: var(--plata); }
/* pabellón: púrpura y púrpura profundo alternados, como el logo */
.cara--b0 { transform: rotateY(0deg)   translateZ(101px) rotateX(-25deg); background: var(--purpura); }
.cara--b1 { transform: rotateY(90deg)  translateZ(101px) rotateX(-25deg); background: var(--purpura-prof); }
.cara--b2 { transform: rotateY(180deg) translateZ(101px) rotateX(-25deg); background: var(--purpura); }
.cara--b3 { transform: rotateY(270deg) translateZ(101px) rotateX(-25deg); background: var(--purpura-prof); }
/* versión pequeña (sección de contacto) */
.gema3d-escena--mini { width: 50px; height: 68px; perspective: 700px; margin: 0 auto 24px; }
.gema3d-escena--mini .gema3d-tilt { transform: rotateX(-18deg) scale(0.24); transform-origin: top center; }
.gema3d-escena--mini .gema3d { animation-duration: 20s; }
.hero__halo {
  position: absolute;
  inset: auto;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(109, 74, 255, 0.28), transparent 70%);
  z-index: -1;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* ==========================================================================
   Cortax destacado
   ========================================================================== */
.cortax { padding: 30px 0 90px; }
.cortax__panel {
  position: relative;
  border-radius: 24px;
  border: 1px solid var(--borde);
  background:
    radial-gradient(ellipse at 85% 20%, rgba(109, 74, 255, 0.16), transparent 55%),
    var(--fondo-panel);
  padding: 56px;
  overflow: hidden;
}
.cortax__panel::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--metal);
}
.cortax__contenido { max-width: 62ch; }
.cortax h2 { font-size: clamp(26px, 3.2vw, 40px); margin-bottom: 18px; }
.cortax p { color: var(--texto-suave); }
.cortax__datos {
  display: flex;
  gap: 44px;
  list-style: none;
  margin: 30px 0 12px;
  flex-wrap: wrap;
}
.cortax__datos li { display: flex; flex-direction: column; }
.cortax__datos strong {
  font-family: var(--fuente-display);
  font-size: 40px;
  background: var(--metal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cortax__datos span { font-size: 14px; color: var(--texto-suave); }
.cortax__ciudades {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--lila) !important;
  margin-bottom: 30px;
}

/* ==========================================================================
   Secciones y tarjetas
   ========================================================================== */
.seccion { padding: 90px 0; }
.seccion--alterna { background: linear-gradient(180deg, transparent, rgba(46, 30, 92, 0.16), transparent); }
.seccion__titulo { font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 46px; max-width: 30ch; }

.tarjetas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tarjeta {
  border: 1px solid var(--borde);
  border-radius: 18px;
  background: var(--fondo-panel);
  padding: 32px 28px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.tarjeta:hover {
  transform: translateY(-6px);
  border-color: rgba(185, 166, 255, 0.35);
  box-shadow: 0 18px 44px rgba(109, 74, 255, 0.18);
}
.tarjeta__icono {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(109, 74, 255, 0.12);
  border: 1px solid var(--borde);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.tarjeta__icono svg { width: 34px; height: 34px; }
.tarjeta h3 { font-size: 21px; margin-bottom: 10px; }
.tarjeta p { font-size: 15.5px; color: var(--texto-suave); margin-bottom: 18px; }
.tarjeta__enlace {
  font-family: var(--fuente-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--lila);
  text-decoration: none;
}
.tarjeta__enlace:hover { color: var(--plata); }
.tarjeta__enlace--mudo { color: var(--texto-suave); cursor: default; }

/* ---- servicios ---- */
.servicios { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.servicio__num { font-family: var(--fuente-display); font-weight: 700; font-size: 44px; display: block; margin-bottom: 14px; }
.servicio h3 { font-size: 20px; margin-bottom: 10px; }
.servicio p { font-size: 15.5px; color: var(--texto-suave); }

/* ---- principios ---- */
.principios { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.principio {
  border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, #7c5cff, transparent) 1;
  padding-left: 22px;
}
.principio h3 { font-size: 19px; margin-bottom: 8px; }
.principio p { font-size: 15.5px; color: var(--texto-suave); }

/* ==========================================================================
   Cierre y pie
   ========================================================================== */
.cierre { padding: 110px 0; position: relative; overflow: hidden; }
.cierre::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -60%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(109, 74, 255, 0.20), transparent 65%);
  pointer-events: none;
}
.cierre__inner { text-align: center; position: relative; }

.cierre h2 { font-size: clamp(28px, 3.4vw, 42px); margin-bottom: 14px; }
.cierre p { color: var(--texto-suave); margin-bottom: 32px; }

.pie { border-top: 1px solid var(--borde); padding: 44px 0 0; }
.pie__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding-bottom: 32px;
  flex-wrap: wrap;
}
.marca__nombre--pie { font-size: 17px; }
.pie__marca p { color: var(--texto-suave); font-size: 14px; margin-top: 6px; }
.pie__nav { display: flex; gap: 24px; flex-wrap: wrap; }
.pie__nav a { color: var(--texto-suave); text-decoration: none; font-size: 14.5px; }
.pie__nav a:hover { color: var(--plata); }
.pie__legal { border-top: 1px solid var(--borde); padding-top: 20px; padding-bottom: 24px; }
.pie__legal p { font-size: 13px; color: var(--texto-suave); }

/* ==========================================================================
   Animación de aparición
   ========================================================================== */
.revelar { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.revelar.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .revelar { opacity: 1; transform: none; transition: none; }
  .gema3d { animation: none; transform: rotateY(45deg); }
  .metal { animation: none; }
  html { scroll-behavior: auto; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; text-align: left; }
  .hero__gema { order: -1; margin-bottom: 8px; }
  .gema3d-tilt { transform: rotateX(-18deg) scale(0.62); transform-origin: top center; }
  .gema3d-escena { height: 180px; }
  .tarjetas, .servicios, .principios { grid-template-columns: 1fr; }
  .cortax__panel { padding: 36px 26px; }
  .nav { display: none; }
}
@media (max-width: 520px) {
  .hero { padding: 70px 0 80px; }
  .cabecera__cta { display: none; }
  .cortax__datos { gap: 26px; }
}