/* =====================================================================
   NÚCLEO LÓGICO DE SISTEMAS DIGITALES
   Hoja de estilos principal

   Paleta corporativa (manual de identidad)
     Primario   #002BAF   Oscuro  #181818
     Secundario #979797   Claro   #FEFEFE

   Los tonos adicionales son variaciones de opacidad / luminosidad de
   esos mismos cuatro colores, nunca colores nuevos.
   ===================================================================== */

/* ============================================================
   1. TOKENS DE DISEÑO
   ============================================================ */
:root {
  /* Colores de marca puros */
  --c-blue: #002baf;
  --c-ink: #181818;
  --c-grey: #979797;
  --c-white: #fefefe;

  /* Tipografía */
  --font: "Poppins", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Escala tipográfica */
  --fs-h1: clamp(2.1rem, 1.2rem + 3.4vw, 3.25rem);
  --fs-h2: clamp(1.75rem, 1.15rem + 2.2vw, 2.6rem);
  --fs-h3: clamp(1.15rem, 1.05rem + 0.4vw, 1.375rem);
  --fs-lead: clamp(1.15rem, 1.02rem + 0.6vw, 1.5rem);
  --fs-body: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --fs-small: 0.9375rem;

  /* Medidas */
  --container: 1180px;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --nav-h: 76px;

  /* Curvas y tiempos */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 0.18s;
  --t: 0.32s;
  --t-slow: 0.6s;
}

/* ---------- TEMA CLARO ---------- */
:root,
[data-theme="light"] {
  color-scheme: light;

  --bg: var(--c-white);
  --bg-alt: #f3f5fb;          /* blanco con 3% del azul corporativo */
  --bg-dark: #101010;          /* variación profunda de #181818 */
  --surface: #ffffff;
  --surface-2: rgba(0, 43, 175, 0.035);
  --surface-glass: rgba(255, 255, 255, 0.72);

  --text: var(--c-ink);
  --text-2: rgba(24, 24, 24, 0.72);
  --text-3: #6f6f6f;           /* gris corporativo oscurecido para cumplir contraste */
  --text-on-accent: var(--c-white);

  --accent: var(--c-blue);
  --accent-bright: #2a5eff;    /* mismo tono, mayor luminosidad */
  --accent-text: var(--c-blue);  /* acento para textos pequeños (contraste AA) */
  --accent-soft: rgba(0, 43, 175, 0.07);
  --accent-line: rgba(0, 43, 175, 0.18);

  --border: rgba(24, 24, 24, 0.1);
  --border-strong: rgba(0, 43, 175, 0.22);

  --shadow-sm: 0 2px 8px rgba(24, 24, 24, 0.06);
  --shadow: 0 14px 34px -18px rgba(24, 24, 24, 0.28);
  --shadow-lg: 0 28px 60px -28px rgba(0, 43, 175, 0.42);

  --grid-line: rgba(0, 43, 175, 0.055);
  --glow-a: rgba(0, 43, 175, 0.13);
  --glow-b: rgba(0, 43, 175, 0.07);
}

/* ---------- TEMA OSCURO ---------- */
[data-theme="dark"] {
  color-scheme: dark;

  --bg: #101010;
  --bg-alt: #161616;
  --bg-dark: #0b0b0b;
  --surface: #1c1c1c;
  --surface-2: rgba(254, 254, 254, 0.04);
  --surface-glass: rgba(24, 24, 24, 0.72);

  --text: var(--c-white);
  --text-2: rgba(254, 254, 254, 0.74);
  --text-3: var(--c-grey);
  --text-on-accent: var(--c-white);

  --accent: #2a5eff;           /* el azul corporativo elevado para ser legible sobre negro */
  --accent-bright: #668cff;
  --accent-text: #668cff;      /* acento para textos pequeños (contraste AA) */
  --accent-soft: rgba(42, 94, 255, 0.11);
  --accent-line: rgba(42, 94, 255, 0.26);

  --border: rgba(254, 254, 254, 0.1);
  --border-strong: rgba(42, 94, 255, 0.32);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow: 0 16px 38px -20px rgba(0, 0, 0, 0.8);
  --shadow-lg: 0 30px 70px -30px rgba(0, 43, 175, 0.75);

  --grid-line: rgba(254, 254, 254, 0.045);
  --glow-a: rgba(0, 43, 175, 0.5);
  --glow-b: rgba(42, 94, 255, 0.16);
}

/* ============================================================
   2. RESET Y BASE
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--t-slow) var(--ease), color var(--t-slow) var(--ease);
}

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

img {
  height: auto;
}

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

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

h1,
h2,
h3,
h4 {
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h3 {
  font-weight: 600;
  letter-spacing: -0.01em;
}

::selection {
  background: var(--accent);
  color: var(--c-white);
}

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

body.is-locked {
  overflow: hidden;
}

/* Enlace de salto para lectores de pantalla / teclado */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 12px 20px;
  background: var(--accent);
  color: var(--c-white);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600;
  transition: top var(--t) var(--ease);
}

.skip-link:focus {
  top: 0;
}

/* ============================================================
   3. LAYOUT Y TIPOGRAFÍA DE SECCIÓN
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  position: relative;
  padding-block: clamp(72px, 9vw, 128px);
}

.section--alt {
  background: var(--bg-alt);
  border-block: 1px solid var(--border);
}

.section--dark {
  --accent-text: #668cff;
  background: var(--bg-dark);
  color: var(--c-white);
  border-block: 1px solid rgba(254, 254, 254, 0.07);
  overflow: hidden;
}

.section--dark .section__subtitle,
.section--dark .section__text {
  color: rgba(254, 254, 254, 0.7);
}

.section--dark .eyebrow {
  color: var(--c-grey);
}

.section__title {
  font-size: var(--fs-h2);
  text-align: center;
  max-width: 20ch;
  margin-inline: auto;
  text-wrap: balance;
}

.section__title--left {
  text-align: left;
  margin-inline: 0;
  max-width: 18ch;
}

.section__subtitle {
  margin: 18px auto 0;
  max-width: 62ch;
  text-align: center;
  color: var(--text-2);
}

.section__text {
  margin-top: 18px;
  color: var(--text-2);
  max-width: 60ch;
}

.txt-accent {
  color: var(--accent);
}

.section--dark .txt-accent {
  color: var(--accent-bright);
}

/* Etiqueta superior de sección */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
}

.eyebrow--center {
  display: flex;
  justify-content: center;
  width: fit-content;
  margin-inline: auto;
}

.eyebrow__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  animation: pulseDot 2.6s var(--ease) infinite;
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 3px var(--accent-soft); }
  50%      { box-shadow: 0 0 0 7px transparent; }
}

/* ============================================================
   4. BOTONES
   ============================================================ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 0.9688rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease),
              background-color var(--t) var(--ease), color var(--t) var(--ease),
              border-color var(--t) var(--ease);
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--t) var(--ease);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--c-blue) 0%, var(--accent-bright) 140%);
  color: var(--c-white);
  box-shadow: 0 10px 26px -12px rgba(0, 43, 175, 0.9);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -14px rgba(0, 43, 175, 0.85);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn--ghost:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-text);
  transform: translateY(-2px);
}

.section--dark .btn--ghost {
  color: var(--c-white);
}

.btn--lg {
  padding: 17px 32px;
  font-size: 1.0313rem;
}

.btn--sm {
  padding: 10px 18px;
  font-size: 0.875rem;
}

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

.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ============================================================
   5. CAPA DE FONDO TECNOLÓGICA
   ============================================================ */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.bg-layer__grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 75% 55% at 50% 0%, #000 35%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 75% 55% at 50% 0%, #000 35%, transparent 78%);
  transition: background-image var(--t-slow) var(--ease);
}

.bg-layer__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
}

.bg-layer__glow--a {
  top: -220px;
  right: -140px;
  width: 620px;
  height: 620px;
  background: var(--glow-a);
  animation: floatGlow 22s ease-in-out infinite;
}

.bg-layer__glow--b {
  top: 38vh;
  left: -220px;
  width: 520px;
  height: 520px;
  background: var(--glow-b);
  animation: floatGlow 28s ease-in-out infinite reverse;
}

@keyframes floatGlow {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50%      { transform: translate3d(-40px, 46px, 0) scale(1.1); }
}

/* ============================================================
   6. NAVBAR
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-glass);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}

.nav.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--c-blue), var(--accent-bright));
  transition: width 0.1s linear;
}

.nav__inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* --- Marca --- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  transition: opacity var(--t) var(--ease);
}

.brand:hover {
  opacity: 0.82;
}

.brand__logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  transition: opacity var(--t) var(--ease);
}

/* Si el archivo del logo aún no existe, se oculta sin romper el layout */
.brand.is-logoless .brand__logo {
  display: none;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__text strong {
  font-size: 1.0313rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand__text small {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* --- Enlaces --- */
.nav__menu {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  position: relative;
  display: block;
  padding: 9px 14px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 999px;
  transition: color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t) var(--ease);
}

.nav__link:hover {
  color: var(--text);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

.nav__link.is-active {
  color: var(--accent-text);
  font-weight: 600;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* --- Interruptor de tema --- */
.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-2);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease),
              background-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--border-strong);
  transform: rotate(12deg);
}

.theme-toggle__track {
  display: none;
}

.theme-toggle__icon {
  position: absolute;
  width: 20px;
  height: 20px;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease);
}

.theme-toggle__icon--sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.4);
}

.theme-toggle__icon--moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-toggle__icon--sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-toggle__icon--moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.4);
}

/* --- Botón hamburguesa --- */
.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface-2);
  position: relative;
}

.nav__toggle span {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transform: translateX(-50%);
  transition: transform var(--t) var(--ease), opacity var(--t-fast) var(--ease);
}

.nav__toggle span:nth-child(1) { top: 15px; }
.nav__toggle span:nth-child(2) { top: 21px; }
.nav__toggle span:nth-child(3) { top: 27px; }

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateX(-50%) translateY(6px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateX(-50%) translateY(-6px) rotate(-45deg);
}

/* ============================================================
   7. HERO
   ============================================================ */
.hero {
  position: relative;
  padding-block: clamp(56px, 8vw, 104px) clamp(72px, 10vw, 120px);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.hero__title {
  font-size: var(--fs-h1);
  margin-top: 4px;
}

.hero__title-line {
  display: block;
}

.hero__title-line--accent {
  background: linear-gradient(100deg, var(--accent) 10%, var(--accent-bright) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  margin-top: 22px;
  font-size: var(--fs-lead);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  max-width: 24ch;
  text-wrap: balance;
}

.hero__text {
  margin-top: 16px;
  color: var(--text-2);
  max-width: 54ch;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 38px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}

.hero__tags li {
  padding: 6px 14px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  background: var(--accent-soft);
}

/* --- Visual "NÚCLEO" --- */
.hero__visual {
  display: flex;
  justify-content: center;
}

.core {
  position: relative;
  width: min(100%, 460px);
  aspect-ratio: 1;
}

.core__svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.core__rings {
  transform-origin: 210px 210px;
}

.core__ring--1 {
  transform-origin: 210px 210px;
  animation: spin 64s linear infinite;
}

.core__ring--2 {
  transform-origin: 210px 210px;
  animation: spin 44s linear infinite reverse;
}

.core__ring--3 {
  transform-origin: 210px 210px;
  animation: spin 30s linear infinite;
  opacity: 0.6;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.core__spokes line {
  stroke-dasharray: 4 8;
  animation: dash 3.4s linear infinite;
}

@keyframes dash {
  to { stroke-dashoffset: -24; }
}

.core__node {
  animation: nodePulse 3.6s var(--ease) infinite;
}

.core__node:nth-child(2) { animation-delay: 0.5s; }
.core__node:nth-child(3) { animation-delay: 1s; }
.core__node:nth-child(4) { animation-delay: 1.5s; }
.core__node:nth-child(5) { animation-delay: 2s; }

@keyframes nodePulse {
  0%, 100% { opacity: 0.45; r: 5; }
  50%      { opacity: 1; r: 7.5; }
}

.core__center-halo {
  animation: haloBreath 5s var(--ease) infinite;
  transform-origin: 210px 210px;
}

@keyframes haloBreath {
  0%, 100% { transform: scale(1); opacity: 0.1; }
  50%      { transform: scale(1.12); opacity: 0.2; }
}

.core__mark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.core__logo {
  width: 42%;
  max-width: 190px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 12px 28px rgba(0, 43, 175, 0.28));
  animation: markFloat 7s ease-in-out infinite;
}

@keyframes markFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-9px); }
}

/* Texto de respaldo si el PNG del logo todavía no está en /assets */
.core__fallback {
  display: none;
  font-size: clamp(3rem, 9vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.core.is-logoless .core__logo {
  display: none;
}

.core.is-logoless .core__fallback {
  display: block;
}

.core__label {
  position: absolute;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-2);
  white-space: nowrap;
  animation: markFloat 6s ease-in-out infinite;
}

.core__label--1 { top: 6%;  left: 50%; transform: translateX(-50%); animation-delay: 0.2s; }
.core__label--2 { bottom: 24%; right: -4%; animation-delay: 1.4s; }
.core__label--3 { bottom: 24%; left: -6%; animation-delay: 2.6s; }

/* --- Indicador de scroll --- */
.hero__scroll {
  display: grid;
  place-items: center;
  width: 28px;
  height: 52px;
  margin: clamp(28px, 5vw, 52px) auto 0;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
}

.hero__scroll-line {
  width: 3px;
  height: 9px;
  border-radius: 3px;
  background: var(--accent);
  animation: scrollHint 2s var(--ease) infinite;
}

@keyframes scrollHint {
  0%   { transform: translateY(-7px); opacity: 0; }
  35%  { opacity: 1; }
  100% { transform: translateY(8px); opacity: 0; }
}

/* ============================================================
   8. NOSOTROS
   ============================================================ */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.about__points {
  display: grid;
  gap: 22px;
  margin-top: 40px;
}

.about__points li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about__point-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
}

.about__point-icon svg {
  width: 20px;
  height: 20px;
}

.about__points h3 {
  font-size: 1.0625rem;
  margin-bottom: 2px;
}

.about__points p {
  font-size: var(--fs-small);
  color: var(--text-2);
  line-height: 1.6;
}

/* Panel lateral "El concepto" */
.panel {
  position: relative;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 0%, var(--accent-soft), transparent 55%);
  pointer-events: none;
}

.panel__head {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

.panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.panel__title {
  font-size: 1.75rem;
  margin: 14px 0 10px;
}

.panel__text {
  font-size: var(--fs-small);
  color: var(--text-2);
  line-height: 1.65;
}

.panel__diagram {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px dashed var(--accent-line);
}

.panel__node {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
}

.panel__node--center {
  order: -1;
  width: 100%;
  text-align: center;
  background: linear-gradient(135deg, var(--c-blue), var(--accent-bright));
  color: var(--c-white);
  border-color: transparent;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 10px 24px -14px rgba(0, 43, 175, 0.9);
}

/* ============================================================
   9. SERVICIOS — TRES NIVELES DE JERARQUÍA
   ============================================================ */

/* Separador de nivel */
.tier__label {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: clamp(44px, 5vw, 64px) 0 24px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
}

.tier__label span {
  flex-shrink: 0;
}

.tier__label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-line), transparent);
}

.tier {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.tier--2 { gap: 18px; }
.tier--3 { gap: 14px; }

/* --- Tarjeta de servicio (niveles 1 y 2) --- */
.service {
  position: relative;
  padding: 28px 26px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease), background-color var(--t) var(--ease);
}

.service::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--accent-soft), transparent 62%);
  opacity: 0;
  transition: opacity var(--t) var(--ease);
  pointer-events: none;
}

.service::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0);
  transition: transform var(--t-slow) var(--ease);
}

.service:hover,
.service:focus-visible,
.service.is-open {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}

.service:hover::before,
.service:focus-visible::before,
.service.is-open::before { opacity: 1; }

.service:hover::after,
.service:focus-visible::after,
.service.is-open::after { transform: scaleX(1); }

/* Nivel 1: mayor presencia visual */
.service--lg {
  padding: 34px 30px;
  background: linear-gradient(170deg, var(--surface) 0%, var(--accent-soft) 160%);
  border-color: var(--border-strong);
}

.service--lg .service__icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--c-blue), var(--accent-bright));
  border-color: transparent;
  color: var(--c-white);
  box-shadow: 0 12px 26px -14px rgba(0, 43, 175, 0.9);
}

.service--lg .service__icon svg {
  width: 27px;
  height: 27px;
}

.service--lg .service__title {
  font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
}

.service--lg .service__desc {
  font-size: 1rem;
}

.service__num {
  position: absolute;
  top: 20px;
  right: 22px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-3);
  opacity: 0.6;
  transition: color var(--t) var(--ease), opacity var(--t) var(--ease);
}

.service:hover .service__num,
.service.is-open .service__num {
  color: var(--accent-text);
  opacity: 1;
}

.service__icon {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
  margin-bottom: 20px;
  transition: transform var(--t) var(--ease), background-color var(--t) var(--ease),
              color var(--t) var(--ease);
}

.service__icon svg {
  width: 24px;
  height: 24px;
}

.service:hover .service__icon,
.service:focus-visible .service__icon,
.service.is-open .service__icon {
  transform: translateY(-3px) scale(1.06);
  background: linear-gradient(135deg, var(--c-blue), var(--accent-bright));
  color: var(--c-white);
}

.service__title {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: 8px;
}

.service__desc {
  font-size: var(--fs-small);
  color: var(--text-2);
  line-height: 1.6;
}

.service__more {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-2);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height var(--t-slow) var(--ease), opacity var(--t) var(--ease),
              margin-top var(--t-slow) var(--ease), padding-top var(--t-slow) var(--ease);
}

.service:hover .service__more,
.service:focus-visible .service__more,
.service.is-open .service__more {
  max-height: 200px;
  opacity: 1;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--accent-line);
}

/* --- Nivel 3: tarjetas compactas --- */
.minicard {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease),
              background-color var(--t) var(--ease);
}

.minicard:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: var(--accent-soft);
}

.minicard__icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
  transition: transform var(--t) var(--ease);
}

.minicard:hover .minicard__icon {
  transform: scale(1.08) rotate(-4deg);
}

.minicard__icon svg {
  width: 19px;
  height: 19px;
}

.minicard h4 {
  font-size: 0.9688rem;
  font-weight: 600;
  margin-bottom: 3px;
}

.minicard p {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-2);
}

/* ============================================================
   10. SOFTWARE + HARDWARE, DESARROLLO WEB Y SOLUCIONES
   ============================================================ */

/* --- Lo desarrollamos por ti: software / integral / hardware --- */
.build {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr) minmax(0, 1fr);
  gap: 20px;
  align-items: stretch;
  margin-top: 56px;
}

.build__card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}

.build__card:hover {
  transform: translateY(-5px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.build__card--center {
  position: relative;
  background: linear-gradient(155deg, var(--c-blue) 0%, #001a6b 100%);
  border-color: transparent;
  color: var(--c-white);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.build__card--center::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% -10%, rgba(254, 254, 254, 0.2), transparent 60%);
  pointer-events: none;
}

.build__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.build__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: 13px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
  transition: transform var(--t) var(--ease);
}

.build__card:hover .build__icon {
  transform: scale(1.08) rotate(-4deg);
}

.build__icon svg {
  width: 23px;
  height: 23px;
}

.build__card--center .build__icon {
  background: rgba(254, 254, 254, 0.14);
  border-color: rgba(254, 254, 254, 0.3);
  color: var(--c-white);
}

.build__title {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.build__text {
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--text-2);
}

.build__card--center .build__text {
  color: rgba(254, 254, 254, 0.84);
}

.build__list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px dashed var(--accent-line);
}

.build__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-2);
}

.build__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
}

.build__formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 24px 0 auto;
  padding: 16px 12px;
  border-radius: var(--radius-sm);
  background: rgba(254, 254, 254, 0.1);
  border: 1px dashed rgba(254, 254, 254, 0.28);
}

.build__formula span {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-white);
}

.build__formula em {
  font-style: normal;
  font-weight: 700;
  color: rgba(254, 254, 254, 0.6);
}

.build__cta {
  align-self: flex-start;
  margin-top: 22px;
  background: var(--c-white);
  color: var(--c-blue);
  box-shadow: 0 10px 24px -14px rgba(0, 0, 0, 0.6);
}

.build__cta:hover {
  background: var(--c-white);
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -14px rgba(0, 0, 0, 0.7);
}

/* --- Desarrollo web: 12 tarjetas (4x3 / 3x4 / 2x6 / 1x12) --- */
.webgrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 56px;
}

.webcard {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 22px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}

.webcard::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow) var(--ease);
}

.webcard:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.webcard:hover::after {
  transform: scaleX(1);
}

.webcard__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
  transition: transform var(--t) var(--ease), background-color var(--t) var(--ease),
              color var(--t) var(--ease);
}

.webcard__icon svg {
  width: 22px;
  height: 22px;
}

.webcard:hover .webcard__icon {
  transform: translateY(-3px) scale(1.07);
  background: linear-gradient(135deg, var(--c-blue), var(--accent-bright));
  color: var(--c-white);
}

.webcard__title {
  font-size: 1.0313rem;
  font-weight: 600;
  line-height: 1.32;
  margin-bottom: 8px;
}

.webcard__desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--text-2);
}

.webcard__use {
  margin-top: auto;
  padding-top: 16px;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-3);
}

.webcard__use span {
  display: block;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 2px;
}

.webgrid__note {
  margin: 34px auto 0;
  max-width: 62ch;
  text-align: center;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--text-3);
}

/* --- Soluciones digitales: 6 tarjetas (3x2 / 2x3 / 1x6) --- */
.dsolutions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 56px;
}

.dsolution {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 26px 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}

.dsolution:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.dsolution__icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
  transition: transform var(--t) var(--ease), background-color var(--t) var(--ease),
              color var(--t) var(--ease);
}

.dsolution:hover .dsolution__icon {
  transform: scale(1.08);
  background: linear-gradient(135deg, var(--c-blue), var(--accent-bright));
  color: var(--c-white);
}

.dsolution__icon svg {
  width: 22px;
  height: 22px;
}

.dsolution__title {
  font-size: 1.0313rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 7px;
}

.dsolution__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-2);
}

/* ============================================================
   11. PROPUESTA DE VALOR
   ============================================================ */

.values {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 56px;
}

.value {
  padding: 30px 26px;
  border-radius: var(--radius);
  background: rgba(254, 254, 254, 0.035);
  border: 1px solid rgba(254, 254, 254, 0.1);
  transition: transform var(--t) var(--ease), background-color var(--t) var(--ease),
              border-color var(--t) var(--ease);
}

.value:hover {
  transform: translateY(-6px);
  background: rgba(254, 254, 254, 0.06);
  border-color: var(--border-strong);
}

.value__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: 13px;
  background: rgba(42, 94, 255, 0.14);
  border: 1px solid rgba(42, 94, 255, 0.3);
  color: var(--accent-bright);
  transition: transform var(--t) var(--ease);
}

.value:hover .value__icon {
  transform: scale(1.08) rotate(-4deg);
}

.value__icon svg {
  width: 22px;
  height: 22px;
}

.value h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
  color: var(--c-white);
}

.value p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(254, 254, 254, 0.68);
}

/* ============================================================
   12. PROCESO
   ============================================================ */
.process {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.process__line {
  position: absolute;
  top: 27px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.process__line-fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-blue), var(--accent-bright));
  transition: width 1.4s var(--ease);
}

.process__step {
  position: relative;
  text-align: center;
}

.process__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-3);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease),
              background-color var(--t) var(--ease), transform var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}

.process__step.is-visible .process__num {
  color: var(--c-white);
  border-color: transparent;
  background: linear-gradient(135deg, var(--c-blue), var(--accent-bright));
  box-shadow: 0 12px 26px -12px rgba(0, 43, 175, 0.9);
}

.process__step:hover .process__num {
  transform: translateY(-4px) scale(1.06);
}

.process__body h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.process__body p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-2);
  max-width: 24ch;
  margin-inline: auto;
}

/* ============================================================
   13. MISIÓN Y VISIÓN
   ============================================================ */
.mv {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
  margin-top: 56px;
}

.mv__card {
  position: relative;
  padding: 38px 34px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.mv__card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.mv__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), transparent);
}

.mv__card--accent {
  background: linear-gradient(150deg, var(--c-blue) 0%, #001a6b 100%);
  border-color: transparent;
  color: var(--c-white);
  box-shadow: var(--shadow-lg);
}

.mv__card--accent::before {
  background: linear-gradient(180deg, var(--c-white), transparent);
}

.mv__tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.mv__card--accent .mv__tag {
  background: rgba(254, 254, 254, 0.14);
  border-color: rgba(254, 254, 254, 0.28);
  color: var(--c-white);
}

.mv__title {
  font-size: 1.375rem;
  margin: 18px 0 14px;
}

.mv__text {
  color: var(--text-2);
  font-size: var(--fs-small);
  line-height: 1.7;
}

.mv__card--accent .mv__text {
  color: rgba(254, 254, 254, 0.82);
}

/* ============================================================
   14. ¿QUÉ PODEMOS DESARROLLAR? — ETAPAS
   ============================================================ */

.evolution {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
  margin-top: 64px;
}

.evolution::before {
  content: "";
  position: absolute;
  top: 31px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(
    90deg,
    var(--accent-bright) 0%,
    rgba(102, 140, 255, 0.4) 55%,
    rgba(151, 151, 151, 0.22) 100%
  );
}

.evolution__stage {
  position: relative;
  text-align: center;
}

.evolution__ring {
  position: relative;
  z-index: 1;
  display: block;
  width: 22px;
  height: 22px;
  margin: 20px auto;
  border-radius: 50%;
  border: 2px solid var(--accent-bright);
  background: var(--bg-dark);
  transition: background-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.evolution__stage:first-child .evolution__ring,
.evolution__stage:hover .evolution__ring {
  background: var(--accent-bright);
  box-shadow: 0 0 0 6px rgba(42, 94, 255, 0.18);
}

.evolution__pulse {
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 2px solid var(--accent-bright);
  animation: evolutionPulse 2.6s var(--ease) infinite;
}

@keyframes evolutionPulse {
  0%   { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(2.6); opacity: 0; }
}

.evolution__step {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 6px;
}

.evolution__name {
  font-size: 1.0625rem;
  color: var(--c-white);
  margin-bottom: 8px;
}

.evolution__desc {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(254, 254, 254, 0.68);
  max-width: 26ch;
  margin-inline: auto;
}

.evolution__note {
  margin: 48px auto 0;
  max-width: 58ch;
  text-align: center;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--c-grey);
}

/* ============================================================
   15. CONTACTO
   ============================================================ */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.contact__channels {
  display: grid;
  gap: 12px;
  margin-top: 36px;
}

.contact__channel {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}

a.contact__channel:hover {
  transform: translateX(4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.contact__channel--static {
  cursor: default;
}

.contact__channel-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
}

.contact__channel-icon svg {
  width: 20px;
  height: 20px;
}

.contact__channel-body {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.contact__channel-body strong {
  font-size: 0.9688rem;
  font-weight: 600;
}

.contact__channel-body small {
  font-size: 0.8125rem;
  color: var(--text-3);
  word-break: break-word;
}

.contact__channel-arrow {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-left: auto;
  color: var(--text-3);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease),
              color var(--t) var(--ease);
}

a.contact__channel:hover .contact__channel-arrow,
a.contact__channel:focus-visible .contact__channel-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--accent-text);
}

.contact__channel-icon--wsp {
  background: var(--accent-soft);
  border-color: var(--accent-line);
  color: var(--accent);
}

.contact__channel[aria-disabled="true"] {
  opacity: 0.68;
  cursor: default;
}

/* --- Formulario --- */
.contact__form {
  padding: 34px 30px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.contact__form-title {
  font-size: 1.25rem;
  margin-bottom: 24px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-3);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 0.9688rem;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease),
              background-color var(--t) var(--ease);
}

.field textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.6;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-3);
  opacity: 0.8;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: #b3261e;
  box-shadow: 0 0 0 3px rgba(179, 38, 30, 0.12);
}

.field__error {
  display: block;
  margin-top: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: #b3261e;
}

[data-theme="dark"] .field__error {
  color: #ff8a80;
}

.contact__form-note {
  margin-top: 16px;
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--text-3);
  text-align: center;
}

/* ============================================================
   16. FOOTER
   ============================================================ */
.footer {
  --accent-text: #668cff;
  position: relative;
  background: var(--bg-dark);
  color: var(--c-white);
  padding-block: clamp(56px, 7vw, 84px) 32px;
  border-top: 1px solid rgba(254, 254, 254, 0.08);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 56px);
}

.brand--footer .brand__text small {
  color: var(--c-grey);
}

.brand--footer .brand__logo {
  width: 52px;
  height: 52px;
}

.footer__desc {
  margin-top: 18px;
  max-width: 38ch;
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(254, 254, 254, 0.66);
}

.footer__social {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

.footer__social a {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(254, 254, 254, 0.14);
  background: rgba(254, 254, 254, 0.04);
  color: rgba(254, 254, 254, 0.72);
  transition: transform var(--t) var(--ease), color var(--t) var(--ease),
              border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.footer__social a svg {
  width: 18px;
  height: 18px;
}

.footer__social a:hover {
  transform: translateY(-3px);
  color: var(--c-white);
  border-color: var(--accent-bright);
  background: rgba(42, 94, 255, 0.16);
}

.footer__social a[aria-disabled="true"] {
  opacity: 0.45;
  cursor: default;
}

.footer__social a[aria-disabled="true"]:hover {
  transform: none;
  border-color: rgba(254, 254, 254, 0.14);
  background: rgba(254, 254, 254, 0.04);
  color: rgba(254, 254, 254, 0.72);
}

.footer__title {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-white);
  margin-bottom: 18px;
}

.footer__col ul {
  display: grid;
  gap: 11px;
}

.footer__col a {
  font-size: 0.875rem;
  color: rgba(254, 254, 254, 0.66);
  transition: color var(--t) var(--ease), padding-left var(--t) var(--ease);
}

.footer__col a:hover {
  color: var(--c-white);
  padding-left: 5px;
}

.footer__muted {
  font-size: 0.875rem;
  color: var(--c-grey);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: 26px;
  border-top: 1px solid rgba(254, 254, 254, 0.08);
  font-size: 0.8125rem;
  color: rgba(254, 254, 254, 0.6);
}

/* ============================================================
   17. BOTÓN FLOTANTE DE WHATSAPP
   ============================================================ */
.wsp {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--c-blue) 0%, var(--accent-bright) 150%);
  color: var(--c-white);
  box-shadow: 0 14px 32px -10px rgba(0, 43, 175, 0.7);
  opacity: 0;
  visibility: hidden;
  transform: translateY(18px) scale(0.85);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease),
              visibility var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.wsp.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.wsp:hover {
  transform: translateY(-3px) scale(1.06);
  box-shadow: 0 20px 40px -10px rgba(0, 43, 175, 0.8);
}

.wsp__icon {
  position: relative;
  width: 30px;
  height: 30px;
}

.wsp__pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--accent-bright);
  animation: wspPulse 2.6s var(--ease) infinite;
}

@keyframes wspPulse {
  0%   { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.7); opacity: 0; }
}

.wsp__tooltip {
  position: absolute;
  right: calc(100% + 12px);
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  color: var(--text);
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease);
}

.wsp:hover .wsp__tooltip,
.wsp:focus-visible .wsp__tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* Estado "pendiente de configuración": sin número definido el botón
   conserva el color de marca y solo cambia de destino y de mensaje. */
.wsp.is-pending .wsp__pulse {
  animation: none;
}

/* ============================================================
   18. ANIMACIONES DE ENTRADA
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
  will-change: auto;
}

/* ============================================================
   19. RESPONSIVE
   Las cuadriculas nunca quedan incompletas: 12 tarjetas se reparten en
   4/3/2/1 columnas y 6 tarjetas en 3/2/1, asi que cada fila siempre
   termina llena.
   ============================================================ */
@media (max-width: 1180px) {
  .webgrid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .hero__visual {
    order: -1;
  }

  .core {
    width: min(78%, 380px);
  }

  .about,
  .contact {
    grid-template-columns: 1fr;
  }

  .section__title--left {
    max-width: 24ch;
  }

  .footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .build {
    grid-template-columns: 1fr;
    max-width: 640px;
    margin-inline: auto;
  }

  .build__card--center {
    order: -1;
  }

  .dsolutions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* Etapas en vertical, con la linea de conexion a la izquierda */
  .evolution {
    grid-template-columns: 1fr;
    gap: 0;
    max-width: 560px;
    margin-inline: auto;
  }

  .evolution::before {
    top: 10px;
    bottom: 34px;
    left: 10px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(
      180deg,
      var(--accent-bright) 0%,
      rgba(102, 140, 255, 0.4) 55%,
      rgba(151, 151, 151, 0.22) 100%
    );
  }

  .evolution__stage {
    position: relative;
    padding: 0 0 30px 46px;
    text-align: left;
  }

  .evolution__ring {
    position: absolute;
    left: 0;
    top: 4px;
    margin: 0;
  }

  .evolution__desc {
    max-width: none;
    margin-inline: 0;
  }
}

/* --- Navegación móvil: los 6 enlaces + CTA dejan de caber antes que
       el resto de la maquetación, por eso tiene su propio corte --- */
@media (max-width: 1080px) {
  :root {
    --nav-h: 66px;
  }

  .nav__toggle {
    display: block;
  }

  .nav__menu {
    position: fixed;
    inset: var(--nav-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 20px 24px 32px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t) var(--ease), transform var(--t) var(--ease),
                visibility var(--t) var(--ease);
  }

  .nav__menu.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav__links {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav__link {
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
  }

  .nav__link::after {
    display: none;
  }

  .nav__link.is-active {
    background: var(--accent-soft);
  }

  .nav__cta {
    margin-top: 16px;
    width: 100%;
    padding-block: 14px;
  }

}

@media (max-width: 900px) {
  .process {
    grid-template-columns: 1fr;
    gap: 0;
    max-width: 560px;
    margin-inline: auto;
  }

  .process__line {
    top: 0;
    bottom: 0;
    left: 27px;
    right: auto;
    width: 2px;
    height: auto;
  }

  .process__line-fill {
    width: 100%;
    height: 0;
    transition: height 1.4s var(--ease);
  }

  .process__step {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 20px;
    align-items: start;
    text-align: left;
    padding-bottom: 32px;
  }

  .process__num {
    margin: 0;
  }

  .process__body p {
    max-width: none;
    margin-inline: 0;
  }

  .webgrid,
  .values,
  .tier--2,
  .tier--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tier--1 {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 600px) {
  .container {
    padding-inline: 18px;
  }

  body {
    line-height: 1.65;
  }

  .brand__logo {
    width: 38px;
    height: 38px;
  }

  .brand__text strong {
    font-size: 0.9375rem;
  }

  .brand__text small {
    font-size: 0.625rem;
  }

  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__cta .btn {
    width: 100%;
  }

  .hero__tags {
    gap: 8px;
  }

  .core {
    width: min(88%, 300px);
  }

  .core__label {
    font-size: 0.6875rem;
    padding: 4px 9px;
  }

  .core__label--2 { right: -8%; }
  .core__label--3 { left: -8%; }

  .section__title,
  .section__title--left {
    max-width: none;
  }

  .webgrid,
  .values,
  .tier--2,
  .tier--3,
  .dsolutions {
    grid-template-columns: 1fr;
  }

  .tier__label {
    gap: 12px;
    letter-spacing: 0.12em;
  }

  .service {
    padding: 24px 20px;
  }

  .service--lg {
    padding: 28px 22px;
  }

  .build__card {
    padding: 26px 22px;
  }

  .webcard,
  .dsolution {
    padding: 22px 20px;
  }

  /* En móvil el detalle se abre al tocar, no al pasar el cursor */
  .service:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--border);
  }

  .service:hover .service__more {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }

  .service.is-open {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow);
  }

  .service.is-open .service__more {
    max-height: 180px;
    opacity: 1;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--accent-line);
  }

  .contact__form {
    padding: 26px 20px;
  }

  .mv__card {
    padding: 30px 24px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .wsp {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
  }

  .wsp__tooltip {
    display: none;
  }
}

/* Pantallas anchas: un poco más de aire */
@media (min-width: 1400px) {
  :root {
    --container: 1260px;
  }
}

/* ============================================================
   20. PREFERENCIAS DE ACCESIBILIDAD
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .bg-layer__glow,
  .core__logo,
  .core__label,
  .wsp__pulse,
  .evolution__pulse,
  .hero__scroll-line {
    animation: none !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --text-2: var(--text);
    --border: rgba(24, 24, 24, 0.35);
  }

  [data-theme="dark"] {
    --border: rgba(254, 254, 254, 0.4);
  }
}

/* ============================================================
   21. IMPRESIÓN
   ============================================================ */
@media print {
  .nav,
  .wsp,
  .bg-layer,
  .hero__scroll,
  .contact__form,
  .theme-toggle {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}