/* ==========================================================================
   VARIABLES Y CONFIGURACIÓN BASE (REDISEÑO AGRESIVO)
   ========================================================================== */
:root {
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Schibsted Grotesk', var(--font-sans); /* Solo para momentos de impacto: h1, h2, logo, numerales */

  /* Paleta SaaS Premium Avanzada */
  --bg: #0b0f19;                 /* Fondo oscuro espacial muy profundo */
  --bg-surface: #131b2e;         /* Tarjetas y superficies */
  --bg-input: #1e293b;
  --ink: #f8fafc;                /* Texto principal ultra claro */
  --muted: #94a3b8;              /* Texto secundario / gris tecnológico */
  --border: rgba(255, 255, 255, 0.08); /* Bordes hiper-finos brillantes */
  --accent: #3b82f6;             /* Azul eléctrico vibrante */
  --accent-2: #a855f7;           /* Morado del gradiente de marca (logo, badges, numerales) */
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-hover: #60a5fa;
  --accent-light: rgba(59, 130, 246, 0.1);
  --whatsapp: #22c55e;
  --whatsapp-hover: #4ade80;

  /* Layout, Spacing & Borders */
  --container-max: 1200px;
  --header-height: 4.5rem;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;             /* Esquinas Bento pronunciadas modernas */
  
  /* Transiciones Premium */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  background-color: var(--bg);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  /* Fondo tecnológico sutil con rejilla integrada */
  background-image: 
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center center;
}

img, svg {
  display: block;
  max-width: 100%;
}

ul, ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 2rem;
}

.section {
  padding-block: clamp(5rem, 10vw, 9rem);
}

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
  display: inline-block;
  background: rgba(59, 130, 246, 0.1);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: #ffffff;
}

.section__header {
  margin-bottom: clamp(3rem, 8vw, 5rem);
  max-width: 700px;
}

/* Skip link accesible (visible solo al enfocar con teclado) */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 200;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}
.skip-link:focus { top: 1rem; }

/* Foco visible reforzado para navegación por teclado */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-hover);
  outline-offset: 3px;
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  padding-top: calc(var(--header-height) + 4.5rem);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: #ffffff;
}

.hero__sub {
  color: var(--muted);
  font-size: 1.125rem;
  line-height: 1.6;
  margin: 1.5rem 0 2rem;
  max-width: 44ch;
}

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

@media (max-width: 992px) {
  .hero { padding-top: calc(var(--header-height) + 2.5rem); }
  .hero__inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ==========================================================================
   COMPONENTES: LOGO PREMIUM Y BOTONES NEÓN GLOW
   ========================================================================== */
.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo::before {
  content: '';
  width: 10px;
  height: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}

.logo__accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), #2563eb);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.25);
}

.btn--primary:hover {
  background: linear-gradient(135deg, #60a5fa, var(--accent));
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(37, 99, 235, 0.45);
}

.btn--ghost {
  background-color: rgba(255, 255, 255, 0.03);
  border-color: var(--border);
  color: #ffffff;
  backdrop-filter: blur(4px);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

.btn--whatsapp {
  background-color: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--whatsapp);
  gap: 0.6rem;
}

.btn--whatsapp:hover {
  background-color: var(--whatsapp);
  color: #000000;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(34, 197, 102, 0.3);
}

.btn--full {
  width: 100%;
}

/* ==========================================================================
   HEADER & INTERFAZ FLUIDA FLOTANTE
   ========================================================================== */
.header {
  position: fixed;
  top: 1.25rem; /* Efecto flotante moderno, despegado del techo */
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: var(--transition-smooth);
}

.header__inner {
  background-color: rgba(11, 15, 25, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  padding: 0.75rem 2rem;
  border-radius: var(--radius-md);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: var(--transition-smooth);
}

.nav__link:hover:not(.btn) {
  color: #ffffff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
}

/* Menú móvil adaptado al modo oscuro */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 44px;               /* Touch target mínimo accesible */
  height: 44px;
  padding: 14px 11px;        /* Deja las barras en ~22x16 dentro del área táctil */
  box-sizing: border-box;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.nav-toggle span {
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: var(--transition-smooth);
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 290px;
    height: 100vh;
    background-color: rgba(19, 27, 46, 0.95);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    padding: 7rem 2.5rem 2.5rem;
    transition: var(--transition-smooth);
  }
  .nav--open { right: 0; }
  .nav__list { flex-direction: column; align-items: flex-start; gap: 2rem; }
  .nav__list li, .nav__list a { width: 100%; }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ==========================================================================
   ESTRUCTURA BENTO GRID: SERVICIOS REVOLUCIONADOS
   ========================================================================== */
.servicios {
  position: relative;
}

/* Distribución Bento asimétrica ultra moderna */
.servicios__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.servicio-card {
  background-color: var(--bg-surface);
  padding: 3rem 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

/* Hacer que los dos primeros servicios tomen más espacio en layouts grandes */
.servicio-card:nth-child(1) { grid-column: span 2; }
.servicio-card:nth-child(2) { grid-column: span 1; }
.servicio-card:nth-child(3) { grid-column: span 1; }
.servicio-card:nth-child(4) { grid-column: span 2; }

/* Efecto de brillo de fondo al pasar el cursor */
.servicio-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(59, 130, 246, 0.06), transparent 40%);
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.servicio-card:hover::before {
  opacity: 1;
}

.servicio-card:hover {
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(59, 130, 246, 0.1);
}

.servicio-card__icon {
  width: 54px;
  height: 54px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  padding: 0.85rem;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
  color: var(--accent);
  transition: var(--transition-smooth);
}

.servicio-card:hover .servicio-card__icon {
  background: linear-gradient(135deg, var(--accent-light), rgba(168, 85, 247, 0.12));
  border-color: transparent;
  box-shadow: 0 0 0 1px var(--accent);
  transform: scale(1.05);
}

.servicio-card__title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: #ffffff;
}

.servicio-card__desc {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

@media (max-width: 992px) {
  .servicios__grid { grid-template-columns: 1fr; }
  .servicio-card:nth-child(1),
  .servicio-card:nth-child(2),
  .servicio-card:nth-child(3),
  .servicio-card:nth-child(4) { grid-column: span 1; }
}

/* ==========================================================================
   PORTAFOLIO: CARRUSEL
   ========================================================================== */
.carousel {
  position: relative;
}

.carousel__track {
  display: flex;
  gap: 1.75rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 0.5rem 0.25rem 1rem;
  margin: 0;
  list-style: none;
  scrollbar-width: none;      /* Firefox: pista visualmente limpia, el gesto de swipe sigue intacto */
  -ms-overflow-style: none;
}

.carousel__track::-webkit-scrollbar {
  display: none;
}

.carousel__slide {
  flex: 0 0 86%;              /* Deja ver un asomo de la siguiente tarjeta como pista de scroll */
  scroll-snap-align: start;
}

@media (min-width: 600px) {
  .carousel__slide { flex-basis: 46%; }
}

@media (min-width: 992px) {
  .carousel__slide { flex-basis: calc(33.333% - 1.17rem); }
}

.carousel__btn {
  display: none;              /* Oculto en móvil: el swipe nativo ya cubre la navegación */
  position: absolute;
  top: 40%;
  transform: translateY(-50%);
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  color: #ffffff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  transition: var(--transition-smooth);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.carousel__btn svg {
  width: 20px;
  height: 20px;
}

.carousel__btn:hover:not(:disabled) {
  background-color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-50%) scale(1.08);
}

.carousel__btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.carousel__btn--prev { left: -0.75rem; }
.carousel__btn--next { right: -0.75rem; }

@media (min-width: 768px) {
  .carousel__btn { display: flex; }
}

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--border);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.carousel__dot--active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  width: 22px;
  border-radius: 4px;
}

.proyecto-card {
  cursor: pointer;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
  transition: var(--transition-smooth);
}

.proyecto-card:hover {
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(59, 130, 246, 0.1);
}

.proyecto-card__img-link {
  display: block;
  text-decoration: none;
}

.proyecto-card__img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: linear-gradient(145deg, #1e293b, #0f172a) center / cover no-repeat;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin-bottom: 1.5rem;
  overflow: hidden;
  position: relative;
  transition: var(--transition-smooth);
}

/* Acento sutil en la imagen: el lift y el brillo ya los aporta la tarjeta completa */
.proyecto-card:hover .proyecto-card__img {
  transform: scale(1.015);
  border-color: rgba(59, 130, 246, 0.25);
}

.proyecto-card__tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.proyecto-card__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  color: #ffffff;
}

.proyecto-card__link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: var(--transition-smooth);
}

.proyecto-card:hover .proyecto-card__link {
  color: #ffffff;
  gap: 0.6rem;
}

/* ==========================================================================
   PROCESO: TARJETAS CON NUMERAL FANTASMA
   ========================================================================== */
.proceso__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
  counter-reset: step;
}

.proceso__step {
  position: relative;
  counter-increment: step;
  padding: 2.5rem 1.75rem 2rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-smooth);
}

/* Numeral gigante en trazo, apenas visible, como marca de agua del paso */
.proceso__step::before {
  content: counter(step);
  position: absolute;
  top: -0.75rem;
  right: 0.75rem;
  font-family: var(--font-display);
  font-size: 5.5rem;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.08);
  transition: var(--transition-smooth);
  pointer-events: none;
}

.proceso__step:hover {
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(59, 130, 246, 0.1);
}

.proceso__step:hover::before {
  -webkit-text-stroke-color: rgba(59, 130, 246, 0.3);
}

.proceso__num {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 1.75rem;
  box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.08), 0 8px 20px rgba(59, 130, 246, 0.25);
  transition: var(--transition-smooth);
}

.proceso__step:hover .proceso__num {
  transform: scale(1.08);
  box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.15), 0 10px 26px rgba(59, 130, 246, 0.4);
}

.proceso__step-title {
  position: relative;
  z-index: 1;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  color: #ffffff;
}

.proceso__body p {
  position: relative;
  z-index: 1;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Aparición escalonada: cada tarjeta se revela un poco después que la anterior */
.proceso__step:nth-child(1) { transition-delay: 0s; }
.proceso__step:nth-child(2) { transition-delay: 0.1s; }
.proceso__step:nth-child(3) { transition-delay: 0.2s; }
.proceso__step:nth-child(4) { transition-delay: 0.3s; }

@media (max-width: 992px) {
  .proceso__steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .proceso__steps { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CONTACTO: FORMULARIO ESTILO NEUMORFISMO OSCURO / GLASS
   ========================================================================== */
.contacto__inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5rem;
  align-items: center;
}

.contacto__form {
  background: linear-gradient(135deg, rgba(19, 27, 46, 0.7), rgba(11, 15, 25, 0.9));
  backdrop-filter: blur(12px);
  padding: 3.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.form-group input,
.form-group textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.9rem 1.25rem;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: #ffffff;
  transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

@media (max-width: 992px) {
  .contacto__inner { grid-template-columns: 1fr; gap: 3rem; }
  .contacto__form { padding: 2.5rem; }
}

/* ==========================================================================
   REVEAL ON SCROLL INTERNALS
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal--active {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   MOTOR 3D ISOMÉTRICO PARA EL HERO VISUAL
   ========================================================================== */
.hero__visual-container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1200px; /* Crucial: define la profundidad del espacio 3D */
}

.hero__scene-3d {
  width: 100%;
  max-width: 550px;
  transform-style: preserve-3d;
  /* Inclinación isométrica exacta perfecta */
  transform: rotateX(54deg) rotateZ(-45deg);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Al pasar el mouse sobre el contenedor del hero, la perspectiva reacciona levemente */
.hero__visual-container:hover .hero__scene-3d {
  transform: rotateX(48deg) rotateZ(-38deg) translateY(-10px);
}

/* Comportamiento base de las capas */
.matrix-layer {
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Separación física real en el eje Z (Efecto sándwich flotante) */
.layer--bottom {
  transform: translateZ(0px);
}

.layer--middle {
  transform: translateZ(60px); /* Flota 60px sobre la base */
}

.layer--top {
  transform: translateZ(130px); /* Flota 130px sobre la base generando sombras internas */
  filter: drop-shadow(-20px 30px 20px rgba(0, 0, 0, 0.4));
}

/* Efecto hover interactivo: las capas se separan aún más al interactuar */
.hero__visual-container:hover .layer--middle {
  transform: translateZ(80px);
}

.hero__visual-container:hover .layer--top {
  transform: translateZ(170px);
  filter: drop-shadow(-30px 45px 30px rgba(0, 0, 0, 0.5));
}

/* ==========================================================================
   ANIMACIONES DE CÓDIGO VIVO Y NODOS (KEYFRAMES EXCLUSIVOS)
   ========================================================================== */

/* 1. Simulación de escritura de código */
.code-line {
  width: 0;
  animation: typeCode 3s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
  animation-delay: var(--d);
}

@keyframes typeCode {
  0% { width: 0; opacity: 0; }
  5% { opacity: 1; }
  100% { width: var(--w); opacity: 1; }
}

/* 2. Pulso de nodos de infraestructura */
.pulse-node {
  animation: pulseGlow 2s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
  0% { r: 4; fill-opacity: 0.6; filter: drop-shadow(0 0 2px #3b82f6); }
  100% { r: 7; fill-opacity: 1; filter: drop-shadow(0 0 8px #3b82f6); }
}

/* 3. Dibujado de líneas de conexión de datos */
.draw-line {
  animation: drawPath 4s linear infinite;
}

@keyframes drawPath {
  to { stroke-dashoffset: -100; }
}

/* 4. Dibujado del gráfico de rendimiento */
.draw-chart {
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: drawChart 3s cubic-bezier(0.4, 0, 0.2, 1) forwards infinite alternate;
}

@keyframes drawChart {
  0%, 15% { stroke-dashoffset: 300; }
  85%, 100% { stroke-dashoffset: 0; }
}

/* 5. Punto parpadeante de la insignia */
.pulse-dot {
  animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ==========================================================================
   AJUSTES MÓVILES DE LEGIBILIDAD Y ESTADO DEL FORMULARIO
   ========================================================================== */
@media (max-width: 768px) {
  .servicio-card__desc { font-size: 1rem; }   /* ≥16px en móvil */
  .nav__link { font-size: 1rem; }
}

/* Suavizar la inclinación isométrica del hero en pantallas pequeñas */
@media (max-width: 600px) {
  .hero__scene-3d { transform: rotateX(42deg) rotateZ(-32deg) scale(0.85); }
}

/* Mensaje de estado del formulario de contacto */
.form-status {
  font-size: 0.9rem;
  color: var(--accent-hover);
  min-height: 1.2em;
}
.form-status:empty { display: none; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  position: relative;
  margin-top: clamp(4rem, 8vw, 6rem);
  padding-top: clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}

/* Línea de acento en degradado que retoma el gradiente del logo y del hero */
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  opacity: 0.5;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.footer__tagline {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 32ch;
  margin: 1.1rem 0 1.25rem;
}

.footer__email {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.footer__email:hover {
  color: var(--accent-hover);
  text-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
}

.footer__col-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.1rem;
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer__nav a {
  color: var(--muted);
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}

.footer__nav a:hover {
  color: #ffffff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.75rem;
}

.footer__copy {
  color: var(--muted);
  font-size: 0.85rem;
}

.footer__top {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.footer__top svg {
  width: 18px;
  height: 18px;
}

.footer__top:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}

@media (max-width: 768px) {
  .footer__inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ==========================================================================
   RESPETAR PREFERENCIA DE MOVIMIENTO REDUCIDO
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}