/* =============================================================
   Dynamic Labs AI — styles.css
   Arquetipo: Mouse-Reactive Gradient (fondo que sigue al cursor)
   ============================================================= */

/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:        #08080a;
  --bg-2:      #0e0e12;
  --bg-3:      #14141a;
  --ink:       #f4f4f5;
  --ink-soft:  #c9c9d1;
  --mute:      #8c8c99;
  --accent:    #00e599;
  --accent-dim: rgba(0, 229, 153, 0.14);

  --grad-1: #ff2d9b;
  --grad-2: #7b3ff2;
  --grad-3: #2f6bff;
  --grad-4: #00e599;

  --line:      rgba(244, 244, 245, 0.12);
  --line-soft: rgba(244, 244, 245, 0.07);

  --sans: "Inter Tight", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --pad: clamp(1.25rem, 5vw, 6rem);
  --maxw: 1320px;
  --nav-h: 74px;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.02; letter-spacing: -0.035em; font-weight: 600; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }
::selection { background: var(--accent); color: #04120c; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: var(--bg);
  z-index: 9999; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* =============================================================
   3. Fondo: gradiente reactivo al cursor + grano
   ============================================================= */
/* El elemento mide 150% del viewport y está centrado (inset: -25%), así el
   blur no dibuja un borde visible. La posición del cursor (0–100% del
   viewport) se remapea al espacio del elemento: 16.667% + mx * 0.6667. */
.bg-gradient {
  position: fixed; inset: -25%;
  z-index: -2;
  pointer-events: none;
  --gx: calc(16.667% + var(--mx, 50%) * 0.6667);
  --gy: calc(16.667% + var(--my, 35%) * 0.6667);
  background:
    radial-gradient(circle 34vmax at var(--gx) var(--gy),
      var(--grad-2) 0%, transparent 62%),
    radial-gradient(circle 26vmax at calc(var(--gx) - 9vmax) calc(var(--gy) + 7vmax),
      var(--grad-1) 0%, transparent 58%),
    radial-gradient(circle 38vmax at calc(var(--gx) + 11vmax) calc(var(--gy) - 6vmax),
      var(--grad-3) 0%, transparent 60%),
    radial-gradient(circle 24vmax at 78% 82%, var(--grad-4) 0%, transparent 55%),
    var(--bg);
  filter: blur(70px) saturate(135%);
  opacity: .42;
  transition: opacity .6s var(--ease-out);
}
/* En móvil no hay cursor: el gradiente se queda quieto y más sutil */
@media (hover: none) {
  .bg-gradient { opacity: .32; filter: blur(80px) saturate(120%); }
}

.bg-grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: .38; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='0.42'/></svg>");
}

/* Velo oscuro para que el texto siempre lea */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 50% 0%, rgba(8,8,10,.35) 0%, rgba(8,8,10,.72) 55%, rgba(8,8,10,.88) 100%);
}

/* =============================================================
   4. Utilidades tipográficas
   ============================================================= */
.kicker, .section-num {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mute);
}

.section-title {
  font-size: clamp(2.1rem, 5.6vw, 4.4rem);
  line-height: 0.98;
  max-width: 20ch;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}
.section-head .section-num { padding-bottom: .2rem; }

section {
  padding-inline: var(--pad);
  max-width: var(--maxw);
  margin-inline: auto;
}

/* =============================================================
   5. Botones
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .92rem 1.6rem;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: transform .4s var(--ease-out), background-color .3s var(--ease-out),
              color .3s var(--ease-out), border-color .3s var(--ease-out), box-shadow .4s var(--ease-out);
}
.btn-solid {
  background: var(--ink);
  color: #08080a;
  box-shadow: 0 0 0 0 rgba(0,229,153,0);
}
.btn-solid:hover {
  background: var(--accent);
  color: #04120c;
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -12px rgba(0,229,153,.55);
}
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(244,244,245,.02);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn:active { transform: translateY(0); }

/* =============================================================
   6. Nav
   ============================================================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: clamp(1rem, 4vw, 3rem);
  padding-inline: var(--pad);
  transition: background-color .4s var(--ease-out), border-color .4s var(--ease-out), backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(8,8,10,.72);
  border-bottom-color: var(--line-soft);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
}

.nav-brand { display: flex; align-items: center; gap: .6rem; margin-right: auto; }
.nav-mark {
  width: 11px; height: 11px; border-radius: 3px;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(0,229,153,.8);
  animation: markPulse 3.2s var(--ease-soft) infinite;
}
@keyframes markPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(.72); opacity: .6; }
}
.nav-name { font-weight: 600; letter-spacing: -0.03em; font-size: 1.02rem; }
.nav-ai { color: var(--accent); margin-left: .18em; }

.nav-links { display: none; gap: clamp(1rem, 2.2vw, 2rem); }
.nav-links a {
  position: relative;
  font-size: .92rem;
  color: var(--ink-soft);
  padding-block: .3rem;
  transition: color .3s var(--ease-out);
}
.nav-links a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .45s var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-cta { padding: .62rem 1.15rem; font-size: .88rem; }

@media (min-width: 960px) { .nav-links { display: flex; } }

/* =============================================================
   7. Hero
   ============================================================= */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  padding-top: calc(var(--nav-h) + clamp(2rem, 7vh, 4.5rem));
  padding-bottom: clamp(4rem, 12vh, 7rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.hero .kicker { margin-bottom: 1.6rem; }

.hero-title {
  font-size: clamp(2.5rem, 7vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 600;
  max-width: 16ch;
}
.hero-title em {
  color: var(--accent);
  font-size: 1.06em;
}

.hero-sub {
  margin-top: clamp(1.5rem, 3vw, 2.2rem);
  max-width: 58ch;
  font-size: clamp(1.02rem, 1.35vw, 1.22rem);
  color: var(--ink-soft);
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: clamp(2rem, 4vw, 2.8rem);
}

.hero-marks {
  list-style: none;
  padding: 0;
  margin-top: clamp(1.8rem, 3.6vw, 2.6rem);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 2rem;
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--mute);
}
.hero-marks span { color: var(--accent); margin-right: .5rem; font-size: .6rem; vertical-align: middle; }

.hero-scroll {
  position: absolute;
  left: var(--pad);
  bottom: clamp(1.2rem, 3vh, 2.2rem);
  display: none;
  align-items: center;
  gap: .7rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mute);
}
.hero-scroll span {
  display: block;
  width: 46px; height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  animation: scrollLine 2.6s var(--ease-soft) infinite;
}
@keyframes scrollLine {
  0%, 100% { transform: scaleX(.35); transform-origin: left; opacity: .5; }
  50%      { transform: scaleX(1);   transform-origin: left; opacity: 1; }
}
@media (min-width: 960px) { .hero-scroll { display: flex; } }

/* =============================================================
   8. Manifiesto
   ============================================================= */
.manifesto {
  padding-block: clamp(4.5rem, 12vh, 9rem);
  border-top: 1px solid var(--line-soft);
}
.manifesto .section-num { margin-bottom: 2rem; display: block; }
.manifesto-text {
  font-size: clamp(1.3rem, 2.9vw, 2.15rem);
  line-height: 1.42;
  letter-spacing: -0.025em;
  max-width: 34ch;
  color: var(--ink);
}
.manifesto-text em { color: var(--accent); }
@media (min-width: 960px) {
  .manifesto { display: grid; grid-template-columns: 1fr 1.55fr; gap: 3rem; align-items: start; }
  .manifesto .section-num { margin-bottom: 0; }
  .manifesto-text { max-width: 44ch; margin: 0; }
}

/* =============================================================
   9. Servicios / FAQ (acordeón de filas)
   ============================================================= */
.services, .process, .faq, .contact {
  padding-block: clamp(4.5rem, 12vh, 9rem);
  border-top: 1px solid var(--line-soft);
}

.svc-list, .faq-list { border-top: 1px solid var(--line); }

.svc { border-bottom: 1px solid var(--line); }

.svc-head {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas: "n title icon" ". lead .";
  align-items: center;
  gap: .35rem 1.1rem;
  padding: clamp(1.4rem, 2.6vw, 2.1rem) 0;
  text-align: left;
  transition: padding-left .5s var(--ease-out), color .35s var(--ease-out);
}
.svc-head:hover { padding-left: clamp(.5rem, 1.4vw, 1.2rem); }

.svc-n {
  grid-area: n;
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--mute);
  transition: color .35s var(--ease-out);
}
.svc-head:hover .svc-n, .svc[aria-expanded] .svc-n { color: var(--accent); }

.svc-title {
  grid-area: title;
  font-size: clamp(1.24rem, 2.5vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.12;
  transition: color .35s var(--ease-out);
}
.svc-head:hover .svc-title { color: var(--accent); }

.svc-lead {
  grid-area: lead;
  font-size: .92rem;
  color: var(--mute);
  line-height: 1.5;
  max-width: 52ch;
}

.svc-icon {
  grid-area: icon;
  position: relative;
  width: 34px; height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  flex: none;
  transition: border-color .35s var(--ease-out), transform .5s var(--ease-out), background-color .35s var(--ease-out);
}
.svc-icon::before, .svc-icon::after {
  content: "";
  position: absolute; top: 50%; left: 50%;
  width: 11px; height: 1.5px;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform .45s var(--ease-out), background-color .35s var(--ease-out);
}
.svc-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.svc-head:hover .svc-icon { border-color: var(--accent); transform: rotate(90deg); }
.svc-head:hover .svc-icon::before, .svc-head:hover .svc-icon::after { background: var(--accent); }

.svc.is-open .svc-icon { background: var(--accent); border-color: var(--accent); transform: rotate(135deg); }
.svc.is-open .svc-icon::before, .svc.is-open .svc-icon::after { background: #04120c; }
.svc.is-open .svc-title { color: var(--accent); }
.svc.is-open .svc-n { color: var(--accent); }

.svc-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .55s var(--ease-out);
}
.svc.is-open .svc-body { grid-template-rows: 1fr; }
.svc-body-inner { overflow: hidden; }
.svc-body-inner > * { opacity: 0; transform: translateY(10px); transition: opacity .5s var(--ease-out) .1s, transform .5s var(--ease-out) .1s; }
.svc.is-open .svc-body-inner > * { opacity: 1; transform: none; }

.svc-body-inner p {
  max-width: 68ch;
  color: var(--ink-soft);
  padding-bottom: 1.3rem;
  font-size: 1rem;
}
.svc-list .svc-body-inner p { padding-left: 0; }

.svc-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: 0 0 2rem;
}
.svc-tags li {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .04em;
  color: var(--ink-soft);
  padding: .34rem .7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(244,244,245,.02);
}

/* FAQ: sin numeración ni lead */
.faq-head { grid-template-columns: 1fr auto; grid-template-areas: "title icon"; }
.faq-head .svc-title { font-size: clamp(1.05rem, 1.9vw, 1.4rem); }
.faq .svc-body-inner p { padding-bottom: 1.9rem; }

@media (min-width: 960px) {
  .svc-head {
    grid-template-columns: 5rem minmax(0, 1fr) minmax(0, 1.05fr) auto;
    grid-template-areas: "n title lead icon";
    gap: 1.5rem;
    align-items: center;
  }
  .svc-lead { max-width: 46ch; }
  .svc-body-inner p, .svc-tags { margin-left: 5rem; }
  .faq-head { grid-template-columns: 1fr auto; grid-template-areas: "title icon"; }
  .faq .svc-body-inner p { margin-left: 0; }
}

/* =============================================================
   10. Stats
   ============================================================= */
.stats {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  padding-block: clamp(4rem, 10vh, 7rem);
  padding-inline: var(--pad);
  border-top: 1px solid var(--line-soft);
}
.stat-value {
  font-size: clamp(3rem, 8vw, 5.6rem);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 1;
  color: var(--ink);
}
.stat-suffix { color: var(--accent); }
.stat-label {
  margin-top: .8rem;
  color: var(--mute);
  font-size: .95rem;
  max-width: 30ch;
  line-height: 1.5;
}
@media (min-width: 720px) { .stats { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   11. Proceso
   ============================================================= */
.proc-grid {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}
.proc {
  background: rgba(14,14,18,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  transition: background-color .45s var(--ease-out);
}
.proc:hover { background: rgba(0,229,153,.05); }
.proc-n {
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--accent);
  letter-spacing: .12em;
}
.proc h3 {
  margin: 1.1rem 0 .7rem;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 500;
}
.proc p { color: var(--mute); font-size: .95rem; line-height: 1.6; }
@media (min-width: 720px)  { .proc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1280px) { .proc-grid { grid-template-columns: repeat(4, 1fr); } }

/* =============================================================
   12. Contacto
   ============================================================= */
.contact-grid { display: grid; gap: clamp(2.5rem, 5vw, 4.5rem); }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 1.1fr .9fr; } }

.form { display: grid; gap: 1.1rem; align-content: start; }
.field { display: grid; gap: .45rem; }
.field label {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
}
.field .opt { text-transform: none; letter-spacing: 0; }
.field input, .field textarea {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: rgba(244,244,245,.03);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .85rem 1rem;
  transition: border-color .3s var(--ease-out), background-color .3s var(--ease-out);
  resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: rgba(140,140,153,.7); }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(0,229,153,.04);
}
.field.has-error input, .field.has-error textarea { border-color: #ff5470; }

.form-submit { justify-self: start; margin-top: .4rem; }
.form.is-sending .form-submit { opacity: .6; pointer-events: none; }
.form-note {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--accent);
  min-height: 1.2em;
}
.form-note.is-error { color: #ff5470; }

.contact-side { display: grid; gap: 1.6rem; align-content: start; }
.contact-label {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mute);
}
.contact-mail {
  font-size: clamp(1.3rem, 3.4vw, 2.1rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  position: relative;
  justify-self: start;
  word-break: break-word;
}
.contact-mail::after {
  content: "";
  position: absolute; left: 0; bottom: -.12em;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform .5s var(--ease-out);
}
.contact-mail:hover { color: var(--accent); }
.contact-mail:hover::after { transform: scaleX(1); transform-origin: left; }

.contact-actions { display: flex; flex-wrap: wrap; gap: .7rem; }

.contact-meta { display: grid; gap: 0; margin-top: .4rem; }
.contact-meta > div {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .85rem 0;
  border-top: 1px solid var(--line-soft);
}
.contact-meta > div:last-child { border-bottom: 1px solid var(--line-soft); }
.contact-meta dt {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
  white-space: nowrap;
}
.contact-meta dd { margin: 0; font-size: .93rem; text-align: right; color: var(--ink-soft); }

/* =============================================================
   13. Footer
   ============================================================= */
.footer {
  padding: clamp(3rem, 7vh, 5rem) var(--pad) clamp(6rem, 8vh, 4rem);
  max-width: var(--maxw);
  margin-inline: auto;
  border-top: 1px solid var(--line-soft);
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 2.2rem;
}
.footer-brand { font-weight: 600; font-size: 1.05rem; letter-spacing: -0.03em; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.2rem 1.8rem; }
.footer-links a { font-size: .9rem; color: var(--mute); transition: color .3s var(--ease-out); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 2rem;
  justify-content: space-between;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--mute);
  letter-spacing: .04em;
}
.footer-bottom a:hover { color: var(--accent); }
.footer-contact { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.footer-contact span { opacity: .5; }

/* =============================================================
   14. Dinámico — asistente flotante
   ============================================================= */
.chat-fab {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 95;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .82rem 1.15rem;
  border-radius: 999px;
  background: rgba(20, 22, 28, .92);
  border: 1px solid rgba(0, 229, 153, .3);
  color: var(--ink);
  font-size: .9rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, .95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform .45s var(--ease-out), border-color .35s var(--ease-out),
              background-color .35s var(--ease-out);
}
.chat-fab:hover { transform: translateY(-3px); border-color: var(--accent); }
.chat-fab strong { font-weight: 600; color: var(--accent); }

.chat-fab-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(0, 229, 153, .9);
  flex: none;
  animation: chatPulse 2.6s var(--ease-soft) infinite;
}
@keyframes chatPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(.6); opacity: .55; }
}

/* Cuando el panel está abierto el botón se vuelve una X */
.chat-fab-close {
  display: none;
  position: relative;
  width: 16px; height: 16px;
  flex: none;
}
.chat-fab-close::before, .chat-fab-close::after {
  content: "";
  position: absolute; top: 50%; left: 0;
  width: 100%; height: 1.6px;
  background: var(--ink);
  border-radius: 2px;
}
.chat-fab-close::before { transform: rotate(45deg); }
.chat-fab-close::after  { transform: rotate(-45deg); }
.chat-fab.is-open .chat-fab-dot,
.chat-fab.is-open .chat-fab-label { display: none; }
.chat-fab.is-open .chat-fab-close { display: block; }
.chat-fab.is-open { padding: .82rem .9rem; }

.chat {
  position: fixed;
  z-index: 96;
  right: clamp(1rem, 3vw, 2rem);
  bottom: calc(clamp(1rem, 3vw, 2rem) + 60px);
  width: min(384px, calc(100vw - 2rem));
  max-height: min(560px, calc(100vh - 8rem));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(12, 12, 16, .93);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  box-shadow: 0 34px 90px -30px rgba(0, 0, 0, .96);
  transform-origin: bottom right;
  animation: chatIn .42s var(--ease-out);
}
.chat[hidden] { display: none; }
@keyframes chatIn {
  from { opacity: 0; transform: translateY(14px) scale(.97); }
  to   { opacity: 1; transform: none; }
}

.chat-head {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .95rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  flex: none;
}
.chat-avatar {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 11px;
  background: var(--accent);
  color: #04120c;
  font-weight: 600;
  font-size: .95rem;
  flex: none;
}
.chat-id { display: flex; flex-direction: column; line-height: 1.25; margin-right: auto; }
.chat-id strong { font-weight: 600; font-size: .95rem; letter-spacing: -0.02em; }
.chat-id small { color: var(--mute); font-size: .74rem; }
.chat-x {
  color: var(--mute);
  padding: .3rem;
  border-radius: 8px;
  transition: color .3s var(--ease-out), background-color .3s var(--ease-out);
}
.chat-x:hover { color: var(--ink); background: rgba(244, 244, 245, .07); }

.chat-log {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(244,244,245,.18) transparent;
}
.chat-log::-webkit-scrollbar { width: 6px; }
.chat-log::-webkit-scrollbar-thumb { background: rgba(244,244,245,.16); border-radius: 3px; }

.msg {
  max-width: 88%;
  padding: .7rem .9rem;
  border-radius: 14px;
  font-size: .91rem;
  line-height: 1.55;
  animation: msgIn .35s var(--ease-out);
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
.msg-bot {
  align-self: flex-start;
  background: rgba(244, 244, 245, .06);
  border: 1px solid var(--line-soft);
  border-bottom-left-radius: 5px;
  color: var(--ink-soft);
}
.msg-user {
  align-self: flex-end;
  background: var(--accent);
  color: #04120c;
  border-bottom-right-radius: 5px;
  font-weight: 500;
}
.msg a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.msg-user a { color: #04120c; }

.msg-typing { display: flex; gap: 4px; align-items: center; padding: .85rem .9rem; }
.msg-typing i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--mute);
  animation: typing 1.1s ease-in-out infinite;
}
.msg-typing i:nth-child(2) { animation-delay: .15s; }
.msg-typing i:nth-child(3) { animation-delay: .3s; }
@keyframes typing {
  0%, 60%, 100% { opacity: .25; transform: translateY(0); }
  30%           { opacity: 1;   transform: translateY(-3px); }
}

.chat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  padding: 0 1rem .8rem;
  flex: none;
}
.chat-chips:empty { display: none; }
.chat-chip {
  font-size: .78rem;
  line-height: 1.3;
  padding: .42rem .75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  background: rgba(244, 244, 245, .02);
  transition: border-color .3s var(--ease-out), color .3s var(--ease-out);
}
.chat-chip:hover { border-color: var(--accent); color: var(--accent); }

.chat-form {
  display: flex;
  gap: .5rem;
  align-items: center;
  padding: .75rem 1rem;
  border-top: 1px solid var(--line-soft);
  flex: none;
}
.chat-form input {
  flex: 1 1 auto;
  min-width: 0;
  font: inherit;
  font-size: .92rem;
  color: var(--ink);
  background: rgba(244, 244, 245, .04);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .62rem .9rem;
  transition: border-color .3s var(--ease-out);
}
.chat-form input::placeholder { color: rgba(140, 140, 153, .75); }
.chat-form input:focus { outline: none; border-color: var(--accent); }
.chat-send {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #08080a;
  flex: none;
  transition: background-color .3s var(--ease-out), transform .3s var(--ease-out);
}
.chat-send:hover { background: var(--accent); transform: scale(1.06); }

.chat-foot {
  padding: 0 1rem .85rem;
  font-size: .7rem;
  color: var(--mute);
  line-height: 1.45;
  flex: none;
}
.chat-foot a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; }
.chat-foot a:hover { color: var(--accent); }

@media (max-width: 539px) {
  .chat { max-height: min(70vh, calc(100vh - 7rem)); }
  .chat-fab-label { display: none; }
  .chat-fab { padding: .82rem .95rem; }
}
@media (prefers-reduced-motion: reduce) {
  .chat-fab-dot { animation: none; }
  .chat { animation: none; }
}

/* =============================================================
   14b. WhatsApp flotante (queda arriba del asistente)
   ============================================================= */
.wa-float {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: calc(clamp(1rem, 3vw, 2rem) + 62px);
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .8rem 1.1rem;
  border-radius: 999px;
  background: #1f2a24;
  border: 1px solid rgba(0,229,153,.35);
  color: var(--accent);
  font-size: .88rem;
  font-weight: 500;
  box-shadow: 0 18px 45px -18px rgba(0,0,0,.9);
  transition: transform .45s var(--ease-out), background-color .35s var(--ease-out), color .35s var(--ease-out);
}
.wa-float:hover { transform: translateY(-3px); background: var(--accent); color: #04120c; }
.wa-float span { display: none; }
@media (min-width: 720px) { .wa-float span { display: inline; } }

/* =============================================================
   15. Reveals (scroll)
   ============================================================= */
/* Sin JS (html sin .has-js) el contenido se ve siempre: no ocultamos nada. */
.has-js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.has-js .reveal.is-visible { opacity: 1; transform: none; }
/* Defensa: si un elemento lleva reveal + split, nunca queda invisible */
.has-js .reveal[data-split] { opacity: 1; transform: none; }

/* =============================================================
   16. Reduced motion — solo lo intrusivo
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .nav-mark { animation: none; }
  .hero-scroll span { animation: none; transform: scaleX(1); }
}