/* ==========================================================================
   ServITech Zapata — sistema de diseño
   Paleta: tinta profunda + señal teal + ámbar de estado
   Tipografía: Space Grotesk (display) / IBM Plex Sans (cuerpo) / IBM Plex Mono (datos)
   ========================================================================== */

:root {
  --ink: #0A1B2B;
  --ink-2: #12283D;
  --slate: #3C4E5E;
  --paper: #EEF1F3;
  --paper-2: #FFFFFF;
  --line: rgba(10, 27, 43, 0.12);
  --line-dark: rgba(238, 241, 243, 0.14);
  --signal: #2FBFA0;
  --signal-dim: rgba(47, 191, 160, 0.14);
  --amber: #E8A33D;

  --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  --max: 1180px;
}

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

@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; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- focus ---------- */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* ---------- eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--signal-dim);
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 27, 43, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-dark);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-mark { flex-shrink: 0; }
.brand-word {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  color: var(--paper-2);
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.brand .mark { color: var(--signal); }
.brand .sub {
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(238,241,243,0.5);
  margin-left: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav.primary { display: flex; gap: 36px; }
nav.primary a {
  font-size: 14px;
  color: rgba(238,241,243,0.78);
  text-decoration: none;
  transition: color 0.15s ease;
}
nav.primary a:hover { color: var(--paper-2); }

.header-cta {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--signal);
  padding: 10px 18px;
  border-radius: 3px;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.header-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(47,191,160,0.35); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--line-dark);
  border-radius: 3px;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--paper-2);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 8px 32px 20px;
  background: var(--ink);
  border-bottom: 1px solid var(--line-dark);
}
.mobile-nav a {
  padding: 13px 4px;
  color: rgba(238,241,243,0.85);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px solid var(--line-dark);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav .btn { margin-top: 12px; justify-content: center; }
.mobile-nav.open { display: flex; }

@media (max-width: 860px) {
  nav.primary { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- hero ---------- */
.hero {
  background: var(--ink);
  color: var(--paper-2);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(238,241,243,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(238,241,243,0.045) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, black, transparent);
  pointer-events: none;
}
.hero .wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  padding-top: 96px;
  padding-bottom: 88px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; padding-top: 56px; padding-bottom: 56px; }
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(2.4rem, 4.6vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  font-weight: 600;
}
.hero h1 em {
  font-style: normal;
  color: var(--signal);
}
.hero p.lede {
  font-size: 17px;
  color: rgba(238,241,243,0.72);
  max-width: 46ch;
  margin: 0 0 36px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.btn {
  font-family: var(--body);
  font-weight: 600;
  font-size: 14.5px;
  padding: 13px 24px;
  border-radius: 3px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary { background: var(--signal); color: var(--ink); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(47,191,160,0.3); }
.btn-ghost { border: 1px solid rgba(238,241,243,0.28); color: var(--paper-2); }
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }

.hero-stats {
  display: flex;
  gap: 32px;
  border-top: 1px solid var(--line-dark);
  padding-top: 24px;
}
.hero-stats .stat b {
  display: block;
  font-family: var(--display);
  font-size: 26px;
  color: var(--paper-2);
}
.hero-stats .stat span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(238,241,243,0.5);
}

/* signature element: status ledger */
.ledger {
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 12.5px;
}
.ledger-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-dark);
  color: rgba(238,241,243,0.55);
}
.ledger-head .dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(238,241,243,0.25); }
.ledger-body { padding: 6px 0; }
.ledger-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid rgba(238,241,243,0.05);
  opacity: 0;
  transform: translateY(4px);
  animation: rowIn 0.5s ease forwards;
}
.ledger-row:last-child { border-bottom: none; }
.ledger-row .k { color: rgba(238,241,243,0.68); }
.ledger-row .v { color: var(--signal); }
.ledger-row .v.amber { color: var(--amber); }
@keyframes rowIn { to { opacity: 1; transform: translateY(0); } }

/* ---------- section shell ---------- */
section { padding: 96px 0; }
@media (max-width: 700px) { section { padding: 64px 0; } }

.section-head {
  max-width: 620px;
  margin-bottom: 56px;
}
.section-head h2 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  font-weight: 600;
}
.section-head p { color: var(--slate); font-size: 16px; margin: 0; }

/* ---------- about ---------- */
.about { background: var(--paper-2); border-bottom: 1px solid var(--line); }
.about .wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; }
@media (max-width: 860px) { .about .wrap { grid-template-columns: 1fr; gap: 40px; } }
.about-copy p { color: var(--slate); margin: 0 0 18px; font-size: 15.5px; }
.about-copy p:last-child { margin-bottom: 0; }

.timeline { border-left: 1px solid var(--line); padding-left: 28px; display: flex; flex-direction: column; gap: 28px; }
.timeline-item { position: relative; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 4px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--signal-dim);
}
.timeline-item .yr { font-family: var(--mono); font-size: 12px; color: var(--signal); letter-spacing: 0.06em; }
.timeline-item h3 { font-family: var(--display); font-size: 17px; margin: 6px 0 6px; font-weight: 600; }
.timeline-item p { margin: 0; color: var(--slate); font-size: 14.5px; }

/* ---------- services ---------- */
.services { background: var(--ink); color: var(--paper-2); }
.services .section-head p { color: rgba(238,241,243,0.65); }
.services .eyebrow { color: var(--signal); }

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  overflow: hidden;
}
@media (max-width: 900px) { .service-grid { grid-template-columns: 1fr; } }

.service-card {
  background: var(--ink);
  padding: 36px 32px;
  transition: background 0.2s ease;
}
.service-card:hover { background: var(--ink-2); }
.service-card .num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--signal);
  letter-spacing: 0.08em;
}
.service-card h3 {
  font-family: var(--display);
  font-size: 19px;
  margin: 18px 0 12px;
  font-weight: 600;
}
.service-card p { color: rgba(238,241,243,0.62); font-size: 14.5px; margin: 0 0 16px; }
.service-card ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.service-card li {
  font-size: 13.5px;
  color: rgba(238,241,243,0.8);
  padding-left: 16px;
  position: relative;
}
.service-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: var(--signal);
}

/* ---------- continuity band ---------- */
.continuity {
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
}
.continuity .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
}
@media (max-width: 800px) { .continuity .wrap { grid-template-columns: 1fr; gap: 32px; } }
.cont-item .n {
  font-family: var(--display);
  font-size: 15px;
  color: var(--signal);
  margin-bottom: 10px;
}
.cont-item h3 { font-family: var(--display); font-size: 17px; margin: 0 0 8px; font-weight: 600; }
.cont-item p { color: var(--slate); font-size: 14.5px; margin: 0; }

/* ---------- training / capacitación ---------- */
.training {
  background: var(--ink);
  color: var(--paper-2);
  border-bottom: 1px solid var(--line-dark);
}
.training .wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 860px) { .training .wrap { grid-template-columns: 1fr; gap: 40px; } }

.training-copy h2 {
  font-family: var(--display);
  font-size: clamp(1.7rem,2.8vw,2.2rem);
  margin: 0 0 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.training-copy .lede-2 { color: rgba(238,241,243,0.72); font-size: 15.5px; margin: 0 0 28px; }
.training-copy .lede-2 strong { color: var(--paper-2); }

.topic-list { margin: 0 0 24px; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.topic-list li {
  font-size: 14px;
  color: rgba(238,241,243,0.75);
  padding-left: 16px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
}
.topic-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: var(--signal);
}
.topic-list li.available { color: var(--paper-2); font-weight: 500; }
.topic-list .chip {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--signal);
  background: var(--signal-dim);
  border-radius: 3px;
  padding: 3px 8px;
}

.training-screenshot {
  margin: 0 0 24px;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink-2);
}
.training-screenshot img { display: block; width: 100%; height: auto; }
.training-screenshot figcaption {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(238,241,243,0.5);
  padding: 10px 14px;
  border-top: 1px solid var(--line-dark);
}

.training-note {
  font-family: var(--mono);
  font-size: 12.5px;
  color: rgba(238,241,243,0.55);
  margin: 0;
}

.training-cta .contact-form input,
.training-cta .contact-form textarea {
  background: var(--ink-2);
  border-color: var(--line-dark);
  color: var(--paper-2);
}
.training-cta .contact-form label { color: rgba(238,241,243,0.55); }

.training-reveal {
  margin-top: 16px;
  padding: 20px;
  border: 1px solid var(--signal);
  background: var(--signal-dim);
  border-radius: 6px;
  text-align: center;
}
.training-reveal p { margin: 0 0 14px; font-size: 14.5px; color: var(--paper-2); }
.training-reveal[hidden] { display: none; }

/* ---------- contact ---------- */
.contact { background: var(--paper); }
.contact .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
@media (max-width: 860px) { .contact .wrap { grid-template-columns: 1fr; gap: 40px; } }

.contact-details { display: flex; flex-direction: column; gap: 22px; }
.contact-row { display: flex; gap: 16px; align-items: flex-start; }
.contact-row .lbl {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  width: 90px;
  flex-shrink: 0;
  padding-top: 3px;
}
.contact-row a, .contact-row span.val { font-size: 15.5px; color: var(--ink); text-decoration: none; }
.contact-row a:hover { color: var(--signal); }

form.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 6px;
  display: block;
}
.contact-form input, .contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: 3px;
  padding: 12px 14px;
  font-family: var(--body);
  font-size: 14.5px;
  color: var(--ink);
  resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-dim);
}
.contact-form button {
  align-self: flex-start;
  border: none;
  cursor: pointer;
  margin-top: 6px;
}
.contact-form button:disabled { opacity: 0.6; cursor: not-allowed; }
.form-status { margin: 0; font-size: 14px; min-height: 1.2em; }
.form-status.ok { color: var(--signal); }
.form-status.error { color: #C0453A; }

/* ---------- whatsapp fab ---------- */
.whatsapp-fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.28);
  z-index: 60;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.whatsapp-fab:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0,0,0,0.34); }
.whatsapp-fab:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

/* ---------- footer ---------- */
footer {
  background: var(--ink);
  color: rgba(238,241,243,0.55);
  border-top: 1px solid var(--line-dark);
}
footer .wrap {
  padding: 36px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
footer a { color: rgba(238,241,243,0.55); text-decoration: none; }
footer a:hover { color: var(--signal); }