/* ---------------------------------------------------
   Ing Systems — Design tokens
--------------------------------------------------- */
:root {
  --bg: #05070c;
  --bg-panel: #0a0e17;
  --bg-panel-2: #0f1526;
  --bg-elevated: #121a2e;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f3f5f9;
  --text-muted: #9aa5b8;
  --text-dim: #5c667a;
  --accent: #4c9bff;
  --accent-2: #22d3ee;
  --accent-soft: rgba(76, 155, 255, 0.12);
  --accent-gradient: linear-gradient(120deg, var(--accent), var(--accent-2));
  --success: #34d399;
  --danger: #f87171;

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 9px;

  --container-w: 1160px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; }
p { margin: 0; }
button { font: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #051019;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 999;
}
.skip-link:focus { left: 0; }

/* Background noise texture, fixed, cheap */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ---------------------------------------------------
   Buttons
--------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 220ms var(--ease-out), box-shadow 220ms var(--ease-out), background 220ms var(--ease-out), border-color 220ms var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--accent-gradient);
  color: #051019;
  box-shadow: 0 8px 24px -8px rgba(76, 155, 255, 0.55);
}
.btn-primary:hover { box-shadow: 0 10px 30px -6px rgba(76, 155, 255, 0.7); transform: translateY(-1px); }
.btn-icon { display: inline-flex; transition: transform 220ms var(--ease-out); }
.btn-primary:hover .btn-icon { transform: translateX(3px); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--border-strong); background: rgba(255, 255, 255, 0.06); }
.btn-lg { padding: 15px 28px; font-size: 1rem; }
.btn-sm { padding: 9px 18px; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* ---------------------------------------------------
   Header
--------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 16px 0;
  background: rgba(5, 7, 12, 0.6);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color 300ms var(--ease-out), background 300ms var(--ease-out), padding 300ms var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  padding: 10px 0;
  background: rgba(5, 7, 12, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 32px; height: 32px; flex: none; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.brand-word-accent { color: var(--accent-2); }

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 4px 0;
  transition: color 200ms var(--ease-out);
}
.main-nav a:hover { color: var(--text); }
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: -2px;
  height: 1px;
  background: var(--accent-gradient);
  transition: right 260ms var(--ease-out);
}
.main-nav a:hover::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
}
.nav-toggle-line {
  width: 16px;
  height: 1.5px;
  margin: 0 auto;
  background: var(--text);
  transition: transform 260ms var(--ease-out), opacity 260ms var(--ease-out);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-line:last-child { transform: translateY(-3.25px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 18px;
  padding: 20px 24px 26px;
  border-top: 1px solid var(--border);
  background: rgba(5, 7, 12, 0.97);
}
.mobile-nav nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a {
  padding: 10px 4px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.mobile-nav.is-open { display: flex; }

@media (max-width: 860px) {
  .main-nav, .header-actions .btn-sm { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------------------------------------------------
   Reveal on scroll
--------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------------------------------------------------
   Eyebrow / section head
--------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 18px;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.15);
}

.section { padding: 110px 0; }
.section-alt { background: var(--bg-panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-title { font-size: clamp(1.7rem, 3vw, 2.35rem); line-height: 1.15; margin-bottom: 16px; }
.section-lead { color: var(--text-muted); font-size: 1.05rem; line-height: 1.65; margin-bottom: 14px; }

@media (max-width: 640px) {
  .section { padding: 76px 0; }
}

/* ---------------------------------------------------
   Hero
--------------------------------------------------- */
.hero {
  position: relative;
  padding: 170px 0 130px;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-grid { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.7; }
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
}
.hero-glow-1 { width: 520px; height: 520px; top: -180px; right: -120px; background: radial-gradient(circle, var(--accent), transparent 70%); }
.hero-glow-2 { width: 420px; height: 420px; bottom: -200px; left: -100px; background: radial-gradient(circle, var(--accent-2), transparent 70%); opacity: 0.22; }

.hero-inner { position: relative; z-index: 1; max-width: 780px; }
.hero-title {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  line-height: 1.08;
  margin-bottom: 24px;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 620px;
  margin-bottom: 40px;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 48px; }

.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-chips li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

@media (max-width: 640px) {
  .hero { padding: 130px 0 90px; }
}

/* ---------------------------------------------------
   Services
--------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 980px) { .services-grid { grid-template-columns: 1fr; } }

.service-card {
  padding: 3px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255,255,255,0.1), rgba(255,255,255,0.02));
  transition: transform 320ms var(--ease-out);
}
.service-card:hover { transform: translateY(-6px); }
.service-card-inner {
  height: 100%;
  padding: 32px 28px;
  border-radius: calc(var(--radius-lg) - 3px);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-panel-2));
  border: 1px solid var(--border);
}
.service-index {
  display: block;
  font-family: var(--font-mono);
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 18px;
}
.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent-2);
  margin-bottom: 20px;
}
.service-title { font-size: 1.25rem; margin-bottom: 12px; }
.service-desc { color: var(--text-muted); margin-bottom: 20px; font-size: 0.95rem; }
.service-list { display: flex; flex-direction: column; gap: 10px; }
.service-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}
.service-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--accent-gradient);
  transform: rotate(45deg);
}

/* ---------------------------------------------------
   Process
--------------------------------------------------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
@media (max-width: 900px) { .process-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .process-grid { grid-template-columns: 1fr; } }

.process-step {
  padding: 26px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  position: relative;
}
.process-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-2);
  margin-bottom: 14px;
}
.process-step h3 { font-size: 1.05rem; margin-bottom: 10px; }
.process-step p { color: var(--text-muted); font-size: 0.9rem; }

/* ---------------------------------------------------
   Why cards
--------------------------------------------------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
@media (max-width: 900px) { .why-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .why-grid { grid-template-columns: 1fr; } }

.why-card {
  padding: 26px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 250ms var(--ease-out), background 250ms var(--ease-out);
}
.why-card:hover { border-color: var(--border-strong); background: rgba(255, 255, 255, 0.04); }
.why-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-2);
  margin-bottom: 16px;
  flex: none;
}
.why-card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.why-card p { color: var(--text-muted); font-size: 0.9rem; }

/* ---------------------------------------------------
   Tech grid
--------------------------------------------------- */
.tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.tech-grid li {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  padding: 12px 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  background: var(--bg-elevated);
  transition: color 220ms var(--ease-out), border-color 220ms var(--ease-out);
}
.tech-grid li:hover { color: var(--text); border-color: var(--border-strong); }

/* ---------------------------------------------------
   Nosotros
--------------------------------------------------- */
.nosotros-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 900px) { .nosotros-grid { grid-template-columns: 1fr; } }

.nosotros-grid .btn { margin-top: 8px; }

.nosotros-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-panel-2));
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nosotros-panel-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-md);
  transition: background 220ms var(--ease-out);
}
.nosotros-panel-row:hover { background: rgba(255, 255, 255, 0.03); }
.nosotros-panel-row h3 { font-size: 0.98rem; margin-bottom: 4px; font-family: var(--font-body); font-weight: 600; }
.nosotros-panel-row p { color: var(--text-muted); font-size: 0.85rem; }

/* ---------------------------------------------------
   FAQ
--------------------------------------------------- */
.faq-list {
  max-width: 780px;
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent-2);
  transition: transform 260ms var(--ease-out);
}
.faq-item[open] summary::after { content: "−"; transform: rotate(180deg); }
.faq-item p {
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
  max-width: 62ch;
}
.faq-item p a { color: var(--accent-2); font-weight: 600; }

/* ---------------------------------------------------
   Contact
--------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-info-card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
}
.contact-info-card h3 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 10px; font-family: var(--font-mono); font-weight: 500; }
.contact-info-card a { color: var(--accent-2); font-weight: 600; word-break: break-word; }
.contact-info-card p { color: var(--text-muted); font-size: 0.92rem; }

.contact-form {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-panel-2));
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }

.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  transition: border-color 200ms var(--ease-out), background 200ms var(--ease-out);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
}
.form-field textarea { resize: vertical; min-height: 110px; }
.form-field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa5b8' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 34px; }

.form-honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-recaptcha-note { font-size: 0.78rem; color: var(--text-dim); line-height: 1.5; }
.form-recaptcha-note a { color: var(--text-muted); text-decoration: underline; }

.form-status { font-size: 0.9rem; min-height: 1.2em; }
.form-status[data-state="success"] { color: var(--success); }
.form-status[data-state="error"] { color: var(--danger); }

#form-submit[disabled] { opacity: 0.6; cursor: default; }

/* ---------------------------------------------------
   Footer
--------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-top: 56px;
  background: var(--bg-panel);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
@media (max-width: 700px) { .footer-inner { grid-template-columns: 1fr; gap: 28px; } }

.footer-tagline { color: var(--text-muted); font-size: 0.9rem; margin-top: 14px; max-width: 260px; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { color: var(--text-muted); font-size: 0.92rem; }
.footer-nav a:hover { color: var(--text); }
.footer-contact a { color: var(--accent-2); font-weight: 600; }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* Oculta el badge flotante de reCAPTCHA (permitido por Google siempre que
   se mantenga visible el aviso de términos/privacidad, ya presente junto
   al formulario de contacto) para que no choque con el botón de WhatsApp. */
.grecaptcha-badge { visibility: hidden; }

/* ---------------------------------------------------
   WhatsApp floating button
--------------------------------------------------- */
.whatsapp-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 45;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 28px -8px rgba(37, 211, 102, 0.55);
  transition: transform 220ms var(--ease-out), box-shadow 220ms var(--ease-out);
}
.whatsapp-fab:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 14px 34px -8px rgba(37, 211, 102, 0.7);
}
.whatsapp-fab:active { transform: scale(0.96); }

.whatsapp-fab-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: whatsapp-pulse 2.4s var(--ease-out) infinite;
}

@keyframes whatsapp-pulse {
  0%   { transform: scale(1);   opacity: 0.55; }
  100% { transform: scale(1.6); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .whatsapp-fab-ring { animation: none; display: none; }
}

@media (max-width: 640px) {
  .whatsapp-fab { right: 16px; bottom: 16px; width: 52px; height: 52px; }
}