:root {
  --blue-900: #0a2a6b;
  --blue-800: #0f3a8a;
  --blue-700: #1e40af;
  --blue-600: #2563eb;
  --blue-50:  #eef2fb;
  --ink:      #0f172a;
  --muted:    #475569;
  --line:     #e2e8f0;
  --bg:       #ffffff;
  --bg-alt:   #f7f9fc;
  --radius:   10px;
  --radius-lg:16px;
  --shadow:   0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(15,23,42,.06);
  --container: 1140px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

a {
  color: var(--blue-700);
  text-decoration: none;
}
a:hover { color: var(--blue-800); }

h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--ink);
  line-height: 1.2;
  margin: 0 0 .5rem;
  font-weight: 600;
  letter-spacing: -.01em;
}

h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.15rem; font-family: var(--font); font-weight: 600; }

p { margin: 0 0 1rem; color: var(--muted); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  padding: .5rem 1rem;
  background: var(--blue-800);
  color: #fff;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
  transition: background-color .2s ease, box-shadow .25s ease, border-color .2s ease;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,.97);
  box-shadow: 0 4px 18px rgba(15,23,42,.07);
  border-bottom-color: transparent;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--blue-800);
  color: #fff;
  font-weight: 700;
  letter-spacing: .05em;
  font-size: .95rem;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-weight: 600; font-size: 1rem; }
.brand-text small { color: var(--muted); font-size: .78rem; }

.nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.nav a {
  color: var(--ink);
  font-size: .95rem;
  padding: .4rem 0;
  position: relative;
}
.nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--blue-600);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s ease;
}
.nav a:not(.nav-cta):hover { color: var(--blue-800); }
.nav a:not(.nav-cta):hover::after { transform: scaleX(1); }
.nav a.nav-cta {
  background: var(--blue-800);
  color: #fff;
  padding: .55rem 1rem;
  border-radius: 8px;
  border: none;
}
.nav a.nav-cta:hover { background: var(--blue-900); }

/* Mobile nav toggle */
.nav-toggle { display: none; }
.nav-toggle-label {
  display: none;
  width: 40px; height: 40px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav-toggle-label span {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .75rem 1.25rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease, transform .05s ease;
  line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--blue-800); color: #fff; }
.btn-primary:hover { background: var(--blue-900); color: #fff; }
.btn-ghost { color: var(--blue-800); background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--blue-50); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-outline:hover { background: rgba(255,255,255,.1); color: #fff; border-color: #fff; }
.btn-lg { padding: .9rem 1.4rem; font-size: 1rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1200px 500px at 85% -10%, #e9efff 0%, rgba(233,239,255,0) 60%),
    linear-gradient(180deg, #ffffff 0%, var(--bg-alt) 100%);
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--line);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr .9fr;
  gap: 3rem;
  align-items: center;
}
.hero-copy .accent { color: var(--blue-800); }
.hero-copy h1 { margin-bottom: 1rem; }
.hero-copy .lead { font-size: 1.1rem; max-width: 52ch; }
.hero-actions {
  display: flex; gap: .75rem;
  margin: 1.5rem 0 1.25rem;
  flex-wrap: wrap;
}

.eyebrow {
  display: inline-block;
  color: var(--blue-800);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin: 0 0 .75rem;
}
.eyebrow.light { color: #cfe0ff; }

.hero-badges {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: flex; flex-wrap: wrap;
  gap: 1.25rem;
  color: var(--muted);
  font-size: .92rem;
}
.hero-badges .dot {
  display: inline-block;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--blue-600);
  margin-right: .5rem;
  vertical-align: middle;
}

/* Hero card */
.hero-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.hero-card .card-title {
  display: flex; align-items: center; gap: .5rem;
  color: var(--blue-800);
  font-weight: 600;
  font-size: .95rem;
  padding-bottom: .75rem;
  margin-bottom: .75rem;
  border-bottom: 1px solid var(--line);
}
.hero-card .card-title svg { width: 20px; height: 20px; }
.card-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; }
.card-list li {
  display: flex; gap: .9rem; align-items: flex-start;
  padding: .4rem 0;
}
.card-list li span {
  display: inline-flex;
  align-items: center; justify-content: center;
  min-width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--blue-50);
  color: var(--blue-800);
  font-weight: 700;
  font-size: .85rem;
}
.card-list li strong { display: block; color: var(--ink); font-weight: 600; }
.card-list li small { color: var(--muted); font-size: .88rem; }

/* ---------- Sections ---------- */
.section { padding: 4.5rem 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 2.5rem; }
.section-head .section-sub { font-size: 1.05rem; }

.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

/* Servicios */
.service {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.service:hover {
  border-color: #cdd7ee;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.service .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--blue-50);
  color: var(--blue-800);
  display: inline-flex;
  align-items: center; justify-content: center;
  margin-bottom: 1rem;
  transition: transform .25s ease, background-color .25s ease;
}
.service:hover .icon { transform: scale(1.08) rotate(-4deg); }
.service .icon svg { width: 22px; height: 22px; }
.service h3 { margin-bottom: .4rem; color: var(--ink); }
.service p { margin: 0; font-size: .95rem; }

/* Sobre mi */
.about-media {
  display: grid;
  gap: 1rem;
}
.about-photo {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.about-photo::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(500px 300px at 30% 20%, rgba(255,255,255,.18), transparent 60%);
  pointer-events: none;
}
.photo-initials {
  font-family: var(--font-serif);
  font-size: clamp(4rem, 10vw, 6rem);
  letter-spacing: .02em;
  font-weight: 600;
}
.about-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.about-meta > div {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  text-align: center;
}
.about-meta strong {
  display: block;
  color: var(--blue-800);
  font-family: var(--font-serif);
  font-size: 1.6rem;
  line-height: 1;
  margin-bottom: .25rem;
}
.about-meta small { color: var(--muted); font-size: .85rem; }

.check-list {
  list-style: none; padding: 0; margin: 1rem 0 0;
  display: grid; gap: .5rem;
}
.check-list li {
  position: relative;
  padding-left: 1.8rem;
  color: var(--ink);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: .45rem;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--blue-50);
  box-shadow: inset 0 0 0 2px var(--blue-600);
}
.check-list li::after {
  content: "";
  position: absolute;
  left: 5px; top: .7rem;
  width: 8px; height: 4px;
  border-left: 2px solid var(--blue-800);
  border-bottom: 2px solid var(--blue-800);
  transform: rotate(-45deg);
}

/* Steps / Metodologia */
.steps {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}
.steps li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.steps li:hover {
  border-color: #cdd7ee;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.step-num {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--blue-800);
  margin-bottom: .5rem;
}
.steps h3 { margin-bottom: .3rem; }
.steps p { margin: 0; font-size: .95rem; }

/* CTA */
.section-cta {
  background:
    radial-gradient(600px 300px at 10% 10%, rgba(255,255,255,.06), transparent 60%),
    linear-gradient(135deg, var(--blue-900), var(--blue-700));
  color: #fff;
}
.section-cta h2 { color: #fff; }
.section-cta p { color: #dbe5f7; }
.cta-inner {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 3rem;
  align-items: center;
}
.cta-actions { display: grid; gap: .75rem; justify-items: stretch; }
.cta-note { color: #b8c7e4; font-size: .85rem; margin: .25rem 0 0; }

/* Footer */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  background: #fff;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-inner strong { display: block; font-weight: 600; }
.footer-inner small { color: var(--muted); font-size: .85rem; }
.footer-inner nav { display: flex; gap: 1.25rem; }
.footer-inner nav a { color: var(--muted); font-size: .92rem; }
.footer-inner nav a:hover { color: var(--blue-800); }
.footer-inner .copy { color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero { padding: 3rem 0 2.5rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .grid-2 { grid-template-columns: 1fr; gap: 2rem; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; gap: 2rem; }
  .testimonials-grid { grid-template-columns: 1fr; }

  .nav-toggle-label { display: flex; }
  .nav {
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: .75rem 1.25rem 1rem;
    gap: .25rem;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .15s ease, transform .15s ease;
  }
  .nav a { padding: .75rem .25rem; border-bottom: 1px solid var(--line); }
  .nav a:last-child { border-bottom: none; }
  .nav a.nav-cta { text-align: center; margin-top: .5rem; }
  .nav a:not(.nav-cta)::after { display: none; }
  .nav-toggle:checked ~ .nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 560px) {
  .grid-3 { grid-template-columns: 1fr; }
  .brand-text small { display: none; }
  .section { padding: 3rem 0; }
  h1 { font-size: 2rem; }
  .fab-whatsapp { right: 1rem; bottom: 1rem; width: 52px; height: 52px; }
  .fab-whatsapp svg { width: 24px; height: 24px; }
}

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
  will-change: opacity, transform;
}
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .08s; }
[data-reveal][data-delay="2"] { transition-delay: .16s; }
[data-reveal][data-delay="3"] { transition-delay: .24s; }
[data-reveal][data-delay="4"] { transition-delay: .32s; }
[data-reveal][data-delay="5"] { transition-delay: .40s; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal][data-delay] {
    opacity: 1; transform: none; transition: none;
  }
  html { scroll-behavior: auto; }
  .fab-whatsapp::before { animation: none; }
}

/* ---------- Floating WhatsApp ---------- */
.fab-whatsapp {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  box-shadow: 0 8px 24px rgba(37,211,102,.35), 0 2px 6px rgba(15,23,42,.15);
  transition: transform .2s ease, box-shadow .2s ease;
}
.fab-whatsapp:hover {
  color: #fff;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 12px 28px rgba(37,211,102,.45), 0 2px 8px rgba(15,23,42,.18);
}
.fab-whatsapp svg { width: 28px; height: 28px; }
.fab-whatsapp::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37,211,102,.55);
  animation: fab-pulse 2.4s ease-out infinite;
  pointer-events: none;
}
@keyframes fab-pulse {
  0%   { transform: scale(.92); opacity: .85; }
  100% { transform: scale(1.45); opacity: 0; }
}

/* ---------- Chips ---------- */
.about-areas { margin-top: 1.75rem; }
.about-areas .eyebrow { margin-bottom: .5rem; }
.chips {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin: 0; padding: 0;
  list-style: none;
}
.chips li {
  font-size: .82rem;
  font-weight: 500;
  color: var(--blue-800);
  background: var(--blue-50);
  border: 1px solid #dbe5fb;
  padding: .35rem .8rem;
  border-radius: 999px;
}

/* ---------- Testimonials ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.testimonial {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  margin: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.testimonial:hover {
  border-color: #cdd7ee;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.testimonial::before {
  content: "\201C";
  position: absolute;
  top: -.5rem; left: 1rem;
  font-family: var(--font-serif);
  font-size: 4.5rem;
  line-height: 1;
  color: var(--blue-50);
  pointer-events: none;
}
.testimonial blockquote {
  margin: 0;
  position: relative;
  color: var(--ink);
  font-size: .98rem;
  line-height: 1.6;
}
.testimonial figcaption {
  font-size: .88rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: .9rem;
}
.testimonial figcaption strong {
  color: var(--ink);
  display: block;
  font-weight: 600;
  margin-bottom: .15rem;
}

/* ---------- FAQ ---------- */
.faq-list {
  display: grid;
  gap: .75rem;
  max-width: 820px;
  margin: 0 auto;
}
.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 1.25rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.faq-list details[open] {
  border-color: #cdd7ee;
  box-shadow: var(--shadow);
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 1.05rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  color: var(--ink);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "";
  width: 10px; height: 10px;
  border-right: 2px solid var(--blue-800);
  border-bottom: 2px solid var(--blue-800);
  transform: rotate(45deg);
  transition: transform .2s ease;
  flex-shrink: 0;
  margin-right: .25rem;
  margin-top: -3px;
}
.faq-list details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 3px;
}
.faq-list details p {
  margin: 0 0 1.1rem;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.65;
}