/* =========================================================
   AUTOFLOW(AI) — by IA Automatizaciones
   Styles
   ========================================================= */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
ul { list-style: none; }

/* --- Variables --- */
:root {
  --bg-primary: #0a1628;
  --bg-secondary: #1F2F4B;
  --bg-card: rgba(31, 47, 75, 0.4);
  --bg-card-hover: rgba(31, 47, 75, 0.7);
  --bg-overlay: rgba(10, 22, 40, 0.85);

  --text-primary: #F2F6F6;
  --text-secondary: #8BBACA;
  --text-muted: #767889;

  --accent: #349AE0;
  --accent-hover: #5BB3EF;
  --accent-dim: rgba(52, 154, 224, 0.15);
  --accent-glow: rgba(52, 154, 224, 0.35);

  --success: #46a87c;
  --warning: #c49844;
  --danger: #f44336;

  --border: rgba(139, 186, 202, 0.15);
  --border-hover: rgba(139, 186, 202, 0.35);

  --font-display: 'Montserrat Alternates', 'Montserrat', sans-serif;
  --font-body: 'Montserrat', system-ui, sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --container: 1200px;
  --section-py: clamp(80px, 10vw, 140px);

  --shadow-glow: 0 0 40px rgba(52, 154, 224, 0.2);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);

  --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 200;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--text-primary);
}
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 300; }
h4 { font-size: 1.125rem; font-weight: 400; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--text-secondary); max-width: 60ch; }

/* --- Layout --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
section { padding: var(--section-py) 0; position: relative; }
.section-header { max-width: 720px; margin-bottom: 64px; }
.section-header.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-header.center .lead { margin-left: auto; margin-right: auto; }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 22, 40, 0.7);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), padding var(--transition);
}
.nav.scrolled { padding: 12px 0; border-bottom-color: var(--border); }
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img { height: 28px; width: auto; }
.nav-logo .by { font-size: 0.7rem; color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase; border-left: 1px solid var(--border); padding-left: 12px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  font-weight: 400;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.lang-toggle {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.lang-toggle button {
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.lang-toggle button.active { background: var(--accent); color: var(--bg-primary); }

.nav-burger { display: none; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-burger {
    display: inline-flex; flex-direction: column; gap: 5px;
    width: 28px; height: 28px; align-items: center; justify-content: center;
  }
  .nav-burger span { width: 22px; height: 1.5px; background: var(--text-primary); transition: var(--transition); }
  .nav.open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.open .nav-burger span:nth-child(2) { opacity: 0; }
  .nav.open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-overlay);
    backdrop-filter: blur(14px);
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
  }
  .nav.open .nav-links a { padding: 8px 0; font-size: 1rem; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 32px var(--accent-glow); }
.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}
.btn-secondary:hover { background: var(--bg-card); border-color: var(--accent); color: var(--accent); }
.btn-ghost { padding: 10px 18px; font-size: 0.875rem; color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); }
.btn .arrow { transition: transform var(--transition); }
.btn:hover .arrow { transform: translateX(4px); }

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 20% 20%, var(--accent-dim), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(31, 47, 75, 0.6), transparent 60%);
  opacity: 0.9;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(139, 186, 202, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 186, 202, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent 80%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 920px;
}
.hero h1 {
  margin-bottom: 28px;
}
.hero h1 .accent { color: var(--accent); }
.hero .lead { margin-bottom: 40px; font-size: clamp(1.1rem, 1.7vw, 1.35rem); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 64px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; max-width: 720px; }
@media (max-width: 700px) { .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px; } }
@media (max-width: 380px) { .hero-stats { grid-template-columns: 1fr; gap: 18px; } }
.stat .n { font-family: var(--font-display); font-weight: 200; font-size: clamp(1.75rem, 3vw, 2.5rem); color: var(--accent); line-height: 1; }
.stat .l { font-size: 0.8125rem; color: var(--text-muted); margin-top: 8px; letter-spacing: 0.05em; text-transform: uppercase; }

/* --- Trust bar --- */
.trust {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.trust-label {
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.trust-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 40px 56px;
  opacity: 0.75;
}
.trust-logos span {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.05rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 1000px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .services-grid { grid-template-columns: 1fr; } }
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent-dim), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}
.service-card:hover::before { opacity: 1; }
.service-card > * { position: relative; }
.service-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 24px;
}
.service-card h3 { margin-bottom: 12px; color: var(--text-primary); }
.service-card p { color: var(--text-secondary); font-size: 0.95rem; }
.service-card ul {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.service-card li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 6px 0;
  padding-left: 18px;
  position: relative;
}
.service-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 14px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* --- Methodology --- */
.methodology {
  background: linear-gradient(180deg, transparent, rgba(31, 47, 75, 0.3), transparent);
}
.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
@media (max-width: 1000px) { .method-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .method-steps { grid-template-columns: 1fr; } }
.method-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  position: relative;
  transition: all var(--transition);
}
.method-step:hover { border-color: var(--accent); transform: translateY(-2px); }
.method-step .num {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 20px;
  display: block;
}
.method-step h3 { margin-bottom: 10px; }
.method-step p { color: var(--text-secondary); font-size: 0.92rem; }

/* --- Portfolio --- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 1000px) { .portfolio-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .portfolio-grid { grid-template-columns: 1fr; } }
.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.case-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.case-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  margin-bottom: 20px;
}
.case-card h3 { margin-bottom: 12px; font-size: 1.25rem; }
.case-card p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 24px; }
.case-metrics { display: flex; gap: 24px; flex-wrap: wrap; padding-top: 20px; border-top: 1px solid var(--border); }
.case-metrics .m .n { font-family: var(--font-display); font-weight: 300; font-size: 1.6rem; color: var(--accent); line-height: 1; }
.case-metrics .m .l { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 4px; }

.portfolio-note {
  margin-top: 40px;
  padding: 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px dashed var(--border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-text p { color: var(--text-secondary); margin-bottom: 18px; font-size: 1rem; }
.about-text p strong { color: var(--text-primary); font-weight: 500; }
.about-values { display: grid; gap: 18px; }
.value-item {
  display: flex; gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}
.value-item:hover { border-color: var(--accent); }
.value-item .v-icon {
  flex: 0 0 36px;
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--accent-dim);
  color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
}
.value-item h4 { margin-bottom: 4px; color: var(--text-primary); font-size: 0.95rem; font-weight: 500; }
.value-item p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.5; margin: 0; }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
}

/* --- Contact --- */
.contact {
  text-align: center;
}
.contact-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 64px 48px;
  background: linear-gradient(135deg, var(--bg-secondary), rgba(31, 47, 75, 0.4));
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute; inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.contact h2 { margin-bottom: 16px; }
.contact .lead { margin: 0 auto 36px; }
.contact-ctas { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 36px; }
.contact-info { display: flex; flex-wrap: wrap; gap: 28px; justify-content: center; font-size: 0.9rem; color: var(--text-secondary); }
.contact-info a { transition: color var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.contact-info a:hover { color: var(--accent); }

/* --- Footer --- */
.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { height: 22px; }
.footer-brand .by { font-size: 0.7rem; color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase; }
.footer-meta { display: flex; gap: 20px; flex-wrap: wrap; }

/* --- WhatsApp floating button --- */
.wa-float {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25D366;
  color: white;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.4);
  z-index: 99;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: wa-pulse 2.5s ease-in-out infinite;
}
.wa-float:hover { transform: scale(1.08); }
@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 8px 28px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 8px 32px rgba(37, 211, 102, 0.7), 0 0 0 12px rgba(37, 211, 102, 0); }
}

/* --- Reveal animations --- */
.reveal {
  opaci