:root {
  --nav-height: 72px;
  --radius: 14px;
  --gutter: clamp(16px, 5vw, 40px);
  --fs-hero-title: clamp(2.4rem, 3vw + 2rem, 4.4rem);
  --fs-hero-subtitle: clamp(1.2rem, 1.2rem + 0.6vw, 1.9rem);
  --fs-hero-micro: clamp(0.9rem, 0.4vw + 0.9rem, 1.05rem);
  --text-primary: #ffffff;
  --text-muted: #e6e6e6;
  --text-soft: #a8a8a8;
  --bg-main: #000;
  --card-bg: #0b0b0b;
  --border-subtle: #111;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  margin: 0;
  padding: 0;
  color: var(--text-primary);
  background-color: var(--bg-main);
  overflow-x: clip;
}

/* FIX: Bloquear scroll cuando el menú móvil está abierto */
body.nav-open {
  overflow: hidden;
}

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

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

img,
video,
canvas,
svg {
  max-width: 100%;
  height: auto;
}

section {
  scroll-margin-top: var(--nav-height);
}

/* =============================
   Navbar
============================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px clamp(18px, 4vw, 42px);
  background: rgba(0, 0, 0, 0.94);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.navbar.scrolled {
  border-color: var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  background: #000;
}

.navbar .logo {
  font-weight: 800;
  font-size: 1.25rem;
}

.main-nav {
  display: flex;
  align-items: center;
  flex: 1;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--text-primary);
  transition: background-color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  outline: none;
}

.arrow {
  font-size: 0.75em;
  transition: transform 0.2s ease;
}

.btn-primary {
  background-color: #000;
  padding: 10px 18px;
  border-radius: 10px;
  border: 2px solid #ffffff;
  font-weight: 700;
  color: #fff;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid #222;
  border-radius: 10px;
  color: #fff;
  font-size: 1.3rem;
  padding: 6px 10px;
  cursor: pointer;
}

/* =============================
   Dropdowns
============================= */
.dropdown {
  position: relative;
}

.dropdown-menu,
.dropdown-portal {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  width: clamp(720px, 88vw, 1100px);
  max-width: calc(100vw - 24px);
  padding: 32px;
  background: #000;
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
  display: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 2000;
}

.dropdown.open > .dropdown-menu,
.dropdown-portal.open {
  display: block;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .dropdown:not(.no-hover):hover > .dropdown-menu {
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
}

.dropdown-content {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 36px;
}

.menu-label {
  color: #ffffff;
  font-size: 12px;
  letter-spacing: 0.12em;
  margin: 0 0 12px 0;
}

.menu-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: center;
  padding: 12px 10px;
  border-radius: 12px;
  color: #ffffff;
  transition: background 0.15s ease, border 0.15s ease, box-shadow 0.15s ease;
}

.menu-item small {
  display: block;
  color: #b9b9b9;
  margin-top: 2px;
  font-size: 12px;
}

.menu-item:hover,
.menu-item:focus-visible {
  border: 1px solid #ffffff;
  background: #000;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
  outline: none;
}

.icon {
  font-size: 20px;
  line-height: 1;
}

.cta-card {
  background: #000;
  color: #fff;
  border-radius: 16px;
  padding: 26px;
  display: grid;
  gap: 10px;
  border: 1px solid #1c1c1c;
}

.cta-card p {
  margin: 0 0 8px 0;
  color: #cfcfcf;
}

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-weight: 600;
}

/* Simple dropdown (Support) */
.dd-simple {
  position: relative;
}

.dropdown-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #000;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  padding: 10px 0;
  display: none;
  min-width: 180px;
  z-index: 2100;
}

.dd-simple.open > .dropdown-panel {
  display: block;
}

.dropdown-item {
  display: block;
  padding: 10px 16px;
  color: #ffffff;
  line-height: 1.4;
}

.dropdown-item:hover,
.dropdown-item:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.dd-simple.open > .dropdown-toggle .arrow {
  transform: rotate(180deg);
}

/* Portal alignment for JS moved menus */
.dropdown-portal {
  position: absolute;
  left: 0;
  top: 0;
  transform: none;
  max-width: min(1200px, calc(100vw - 24px));
}

body.menu-open {
  overflow: hidden;
}

/* =============================
   Hero
============================= */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(96px, 16vh, 150px) clamp(20px, 6vw, 88px);
  min-height: 82vh;
  background: #000;
  overflow: hidden;
  isolation: isolate;
}

.hero-text {
  position: relative;
  z-index: 1;
  max-width: 880px;
  display: grid;
  gap: 16px;
}

.hero-title {
  font-size: var(--fs-hero-title);
  font-weight: 800;
  line-height: 1.05;
  margin: 0;
}

.hero-subtitle {
  font-size: var(--fs-hero-subtitle);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-muted);
  margin: 0;
}

.hero-microcopy {
  font-size: var(--fs-hero-micro);
  color: var(--text-soft);
  margin: 0;
}

#circuit-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* =============================
   Feature split & stack cards
============================= */
.feature-split {
  padding: clamp(80px, 10vw, 120px) var(--gutter);
}

.split-block {
  display: flex;
  gap: clamp(32px, 4vw, 64px);
  align-items: flex-start;
  max-width: 1200px;
  margin: 0 auto;
}

.split-image img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}

.sticky-image {
  position: sticky;
  top: 120px;
  flex: 1 1 46%;
  align-self: flex-start;
}

.split-text {
  flex: 1 1 50%;
  position: relative;
}

.stack-container {
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.stack-card {
  position: sticky;
  top: clamp(70px, 12vh, 140px);
  margin: 0 auto;
  padding: 48px 40px;
  border-radius: 20px;
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: all 0.5s ease;
  pointer-events: none;
}

.stack-card.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.card-inner {
  max-width: 60ch;
}

.stack-card .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: #cfcfcf;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  font-weight: 600;
}

.stack-card h2 {
  margin: 8px 0 12px;
  font-size: clamp(1.6rem, 1vw + 1.4rem, 2.2rem);
}

.stack-card p {
  font-size: 1rem;
  color: #ededed;
  line-height: 1.6;
  margin: 0;
}

/* =============================
   Contact
============================= */
.contact {
  padding: clamp(80px, 10vw, 120px) var(--gutter);
  background: #000;
}

.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-info,
.contact-image {
  flex: 1 1 45%;
}

.contact-info .label {
  color: #f5f3f3;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.contact-info h2 {
  font-size: clamp(2rem, 2.4vw, 2.6rem);
  margin: 0 0 10px;
}

.contact-info .subtitle {
  font-size: 1.05rem;
  color: #e0e0e0;
  margin: 0 0 26px;
}

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.contact-item .icon {
  font-size: 1.6rem;
  line-height: 1.5;
}

.contact-image img {
  width: 100%;
  border-radius: 12px;
}

/* =============================
   Footer
============================= */
.footer {
  background: #000;
  color: #fff;
  padding: 30px var(--gutter);
  text-align: center;
}

.footer-icons span {
  font-size: 1.4rem;
  margin: 0 8px;
}

.footer-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  font-size: 0.9rem;
  margin-top: 10px;
}

/* =============================
   Responsive
============================= */
@media (max-width: 1100px) {
  .dropdown-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .navbar {
    flex-wrap: wrap;
    padding: 14px 18px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    /* FIX: Menú móvil en overlay estable y sin empujar el layout */
    position: fixed;
    inset: calc(var(--nav-height) - 8px) 0 0;
    display: none;
    padding: 16px 18px 32px;
    background: rgba(0, 0, 0, 0.98);
    border-top: 1px solid var(--border-subtle);
    backdrop-filter: blur(4px);
    overflow-y: auto;
    z-index: 2900;
  }

  .navbar.is-open .main-nav {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 8px 0 0;
  }

  .main-nav li {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: 12px 14px;
  }

  .btn-primary {
    display: none;
  }

  .dropdown-menu,
  .dropdown-portal {
    position: static;
    width: 100%;
    transform: none;
    max-width: none;
    margin-top: 8px;
    padding: 18px 14px;
    box-shadow: none;
    background: #0b0b0b;
    z-index: 2950;
  }

  .navbar.is-open .dropdown-portal {
    /* FIX: Asegurar que el mega menú viva dentro del overlay en móvil */
    position: relative;
  }

  .dropdown-content {
    display: block;
  }

  .cta-card {
    margin-top: 14px;
  }

  .dropdown.open > .dropdown-menu,
  .dropdown-portal.open {
    transform: none;
  }

  .dropdown-panel {
    position: static;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    margin-top: 8px;
  }

  .hero {
    padding: clamp(72px, 16vh, 110px) clamp(18px, 6vw, 42px);
    min-height: 76vh;
  }

  .hero-text {
    text-align: center;
    align-items: center;
  }

  .hero-title {
    font-size: clamp(2.4rem, 5vw + 1.6rem, 3rem);
  }

  .hero-subtitle {
    font-size: clamp(1.2rem, 1vw + 1.1rem, 1.5rem);
  }

  .hero-microcopy {
    font-size: 1rem;
  }

  .split-block {
    flex-direction: column;
  }

  .sticky-image {
    position: relative;
    top: auto;
  }

  .stack-card {
    position: relative;
    top: auto;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .stack-container {
    gap: 32px;
  }

  .contact-content {
    flex-direction: column;
  }

  .contact-info,
  .contact-image {
    flex: 1 1 100%;
  }
}

@media (max-width: 600px) {
  .navbar {
    padding: 12px 16px;
  }

  .hero {
    padding: clamp(64px, 18vh, 96px) 18px;
    min-height: 70vh;
  }

  .hero-title {
    font-size: clamp(2.2rem, 7vw + 1.2rem, 2.6rem);
  }

  .hero-subtitle {
    font-size: 1.3rem;
  }

  .hero-microcopy {
    font-size: 0.95rem;
  }

  .split-block {
    gap: 26px;
  }

  .stack-card {
    padding: 32px 28px;
  }

  .contact {
    padding: 70px 18px;
  }
}

/* Motion preference */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}


/* ===== Quiénes Somos (Debajo del Hero) ===== */
.about-ia {
  width: 100%;
  padding: 60px 20px;
  display: flex;
  justify-content: center;
}

.about-ia__inner {
  max-width: 700px;
  text-align: center;
}

.about-ia__inner p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #FFFFFF; /* blanco elegante */
  margin: 0;
}

/* === Sección Contacto === */

.contact-section {
  padding: 120px 24px 80px;
  background: #000000;
  color: #ffffff;
}

.contact-inner {
  max-width: 960px;
  margin: 0 auto;
  border-radius: 32px;
  padding: 48px 40px 40px;
  background: #111111;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.7);
}

.contact-header {
  text-align: left;
  margin-bottom: 40px;
}

.contact-kicker {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 12px;
  margin: 0 0 12px;
  color: #a1a1aa;
}

.contact-header h2 {
  font-size: 32px;
  line-height: 1.15;
  margin: 0 0 10px;
}

.contact-subtitle {
  margin: 0;
  max-width: 520px;
  color: #d4d4d8;
  font-size: 15px;
}

/* Formulario */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field label {
  font-size: 14px;
  color: #e4e4e7;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border-radius: 999px;
  border: 1px solid #27272a;
  background: #000000;
  color: #ffffff;
  padding: 12px 18px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

/* textarea un poquito menos “pill” para que se vea mejor */
.contact-form textarea {
  border-radius: 18px;
  min-height: 120px;
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #71717a;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #ffffff;
  box-shadow: 0 0 0 1px #ffffff10;
  background: #050505;
}

/* Botones */

.contact-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 8px;
}

.contact-btn-primary,
.contact-btn-secondary {
  border-radius: 999px;
  padding: 10px 24px;
  font-size: 14px;
  border: none;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.16s ease, color 0.16s ease, transform 0.08s ease;
}

.contact-btn-primary {
  background: #ffffff;
  color: #000000;
}

.contact-btn-primary:hover {
  background: #e5e5e5;
  transform: translateY(-1px);
}

.contact-btn-secondary {
  background: #27272a;
  color: #e4e4e7;
}

.contact-btn-secondary:hover {
  background: #3f3f46;
  transform: translateY(-1px);
}

.contact-hint {
  margin: 6px 0 0;
  font-size: 12px;
  color: #71717a;
}

/* Responsive */

@media (max-width: 768px) {
  .contact-inner {
    padding: 32px 20px 28px;
    border-radius: 24px;
  }

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

  .contact-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .contact-btn-primary,
  .contact-btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .contact-header h2 {
    font-size: 26px;
  }
}


/* Mensajes de estado del formulario */
.contact-message {
  display: none; /* oculto por defecto */
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.4;
  border: 1px solid transparent;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.contact-message.is-visible {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Éxito */
.contact-message--success {
  background: rgba(34, 197, 94, 0.08); /* verde suave */
  border-color: rgba(34, 197, 94, 0.5);
  color: #bbf7d0;
}

/* Error */
.contact-message--error {
  background: rgba(239, 68, 68, 0.08); /* rojo suave */
  border-color: rgba(239, 68, 68, 0.5);
  color: #fecaca;
}

/* Estado "enviando" en el botón */
.contact-btn-primary.is-loading {
  opacity: 0.7;
  cursor: wait;
}