:root {
  --fondo: #eef2f0;
  --fondo-2: #e2e8e5;
  --tinta: #10302c;
  --tinta-suave: #44605b;
  --niebla: #c9d3cf;
  --saku: #7a5cff;
  --saku-claro: #d8ccff;
  --blanco: #ffffff;
  --ancho: 1120px;
  --display: "Bricolage Grotesque", "Public Sans", system-ui, sans-serif;
  --texto: "Public Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--fondo);
  color: var(--tinta);
  font-family: var(--texto);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--display); font-weight: 700; letter-spacing: -0.015em; line-height: 1.05; margin: 0; }
h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.6rem); margin-bottom: 1.4rem; max-width: 22ch; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; max-width: 62ch; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--saku); outline-offset: 3px;
}

main > section, .franja { padding: 5rem clamp(1rem, 5vw, 4rem); }
main > section > *, .pie > * { max-width: var(--ancho); margin-left: auto; margin-right: auto; }

/* cabecera */
.cabecera {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.1rem clamp(1rem, 5vw, 4rem);
  max-width: calc(var(--ancho) + 8rem); margin: 0 auto;
}
.marca { font-family: var(--display); font-weight: 800; font-size: 1.35rem; text-decoration: none; letter-spacing: -0.02em; }
.nav { display: flex; gap: 1.4rem; }
.nav a { text-decoration: none; font-weight: 500; color: var(--tinta-suave); }
.nav a:hover { color: var(--tinta); }
@media (max-width: 720px) { .nav { display: none; } }

/* botones */
.boton {
  display: inline-flex; align-items: center; gap: 0.6rem;
  background: var(--tinta); color: var(--blanco);
  border: 0; border-radius: 999px; padding: 0.95rem 1.5rem;
  font: 600 1rem var(--texto); cursor: pointer; text-decoration: none;
  transition: transform 120ms ease, background 160ms ease;
}
.boton:hover { background: #1c4a44; }
.boton:active { transform: scale(0.98); }
.boton-peq { padding: 0.6rem 1.1rem; font-size: 0.925rem; }
.boton-icono { width: 10px; height: 10px; border-radius: 50%; background: var(--saku); box-shadow: 0 0 0 0 rgba(122,92,255,0.6); }
.boton[data-activo] .boton-icono { animation: latido 1.2s infinite; background: #ff6a5c; }
@keyframes latido { 0% { box-shadow: 0 0 0 0 rgba(255,106,92,0.6);} 70% { box-shadow: 0 0 0 10px rgba(255,106,92,0);} 100% { box-shadow: 0 0 0 0 rgba(255,106,92,0);} }

/* hero */
.hero {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 3rem; align-items: center;
  max-width: calc(var(--ancho) + 8rem); margin: 0 auto;
  min-height: min(78vh, 760px);
}
.hero > * { max-width: none; }
.hero-sub { font-size: 1.15rem; color: var(--tinta-suave); margin: 1.4rem 0 2rem; max-width: 50ch; }
.hero-acciones { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.hero-nota { font-size: 0.9rem; color: var(--tinta-suave); max-width: 24ch; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 1.5rem; min-height: 0; padding-top: 2rem; }
  .saku { order: -1; }
}

/* Saku */
.saku { margin: 0; display: grid; justify-items: center; gap: 0.6rem; }
.saku-escena { position: relative; width: min(100%, 360px); aspect-ratio: 1; display: grid; place-items: center; }
.saku-cabeza {
  width: 86%; will-change: transform;
  transform-style: preserve-3d;
  transition: transform 160ms ease-out;
}
@media (prefers-reduced-motion: reduce) { .saku-cabeza { transition: none; } }
.saku-svg { width: 100%; height: auto; display: block; overflow: visible; }
.saku-sombra {
  position: absolute; bottom: 6%; left: 50%; width: 55%; height: 7%;
  transform: translateX(-50%); border-radius: 50%;
  background: radial-gradient(closest-side, rgba(16,48,44,0.22), rgba(16,48,44,0));
}
.saku-escena { animation: flotar 5s ease-in-out infinite; }
@keyframes flotar { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-8px);} }
@media (prefers-reduced-motion: reduce) { .saku-escena { animation: none; } }

.saku-burbuja {
  font-family: var(--display); font-weight: 500; font-size: 1rem;
  background: var(--blanco); border: 1.5px solid var(--niebla);
  padding: 0.6rem 1rem; border-radius: 18px 18px 18px 4px;
  max-width: 32ch; text-align: center; min-height: 2.6rem;
  transition: opacity 200ms;
}
.saku-burbuja[data-vacia] { opacity: 0; }

[data-ojo] { transition: transform 80ms linear; }
[data-boca] rect { transform-origin: center; transition: transform 90ms ease; }
.saku[data-estado="hablando"] [data-boca] rect { animation: onda 0.55s ease-in-out infinite; }
.saku[data-estado="hablando"] [data-boca] rect:nth-child(2) { animation-delay: 0.1s; }
.saku[data-estado="hablando"] [data-boca] rect:nth-child(3) { animation-delay: 0.2s; }
.saku[data-estado="hablando"] [data-boca] rect:nth-child(4) { animation-delay: 0.3s; }
.saku[data-estado="hablando"] [data-boca] rect:nth-child(5) { animation-delay: 0.15s; }
@keyframes onda { 0%,100% { transform: scaleY(1);} 50% { transform: scaleY(3.6);} }
.saku[data-estado="escuchando"] [data-antena] circle { animation: antena 1s ease-in-out infinite; }
@keyframes antena { 0%,100% { fill: #7a5cff;} 50% { fill: #ff6a5c;} }
.saku[data-estado="pensando"] [data-ojo] { animation: pensar 1.1s ease-in-out infinite; }
@keyframes pensar { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-5px);} }

/* franja conversación */
.franja { background: var(--tinta); color: var(--fondo); }
.franja > * { max-width: var(--ancho); margin-left: auto; margin-right: auto; }
.franja h2 { color: var(--blanco); }
.conversacion { display: grid; gap: 0.9rem; max-width: 640px; margin: 2rem 0 1.5rem; }
.turno { margin: 0; padding: 0.9rem 1.1rem; border-radius: 18px; max-width: 90%; }
.turno .quien { display: block; font-size: 0.78rem; font-weight: 600; opacity: 0.7; margin-bottom: 0.2rem; }
.turno.cliente { background: rgba(255,255,255,0.08); border-bottom-left-radius: 4px; justify-self: start; }
.turno.saku-dice { background: var(--saku); color: var(--blanco); border-bottom-right-radius: 4px; justify-self: end; }
.franja-nota { color: var(--niebla); }

/* servicios */
.lista-servicios { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.4rem 3rem; margin: 0; }
.lista-servicios dt { font-family: var(--display); font-weight: 700; font-size: 1.35rem; line-height: 1.15; margin-bottom: 0.5rem; }
.lista-servicios dd { margin: 0; color: var(--tinta-suave); }
@media (max-width: 720px) { .lista-servicios { grid-template-columns: 1fr; gap: 1.8rem; } }

/* casos */
.casos { background: var(--fondo-2); }
.lista-casos { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.lista-casos h3 { margin-bottom: 0.5rem; }
.lista-casos p { color: var(--tinta-suave); margin: 0; }
@media (max-width: 860px) { .lista-casos { grid-template-columns: 1fr; gap: 1.6rem; } }

/* proceso */
.pasos { counter-reset: paso; list-style: none; padding: 0; margin: 0; display: grid; gap: 1.1rem; max-width: 640px; }
.pasos li { position: relative; padding-left: 3.2rem; color: var(--tinta-suave); }
.pasos li strong { color: var(--tinta); font-weight: 600; }
.pasos li::before {
  counter-increment: paso; content: counter(paso);
  position: absolute; left: 0; top: 0.05rem;
  width: 2.2rem; height: 2.2rem; border-radius: 50%; border: 1.5px solid var(--tinta);
  display: grid; place-items: center; font-family: var(--display); font-weight: 700;
}

/* contacto */
.contacto { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; background: var(--blanco); }
.contacto > * { max-width: none; }
.contacto-texto p { color: var(--tinta-suave); }
.formulario { display: grid; gap: 1rem; max-width: 460px; }
.formulario label { display: grid; gap: 0.35rem; font-weight: 500; font-size: 0.95rem; }
.formulario input, .formulario textarea {
  font: inherit; padding: 0.75rem 0.9rem; border: 1.5px solid var(--niebla); border-radius: 12px; background: var(--fondo);
}
.formulario input:focus, .formulario textarea:focus { border-color: var(--saku); outline: none; }
.formulario-nota { font-size: 0.875rem; color: var(--tinta-suave); margin: 0; }
@media (max-width: 860px) { .contacto { grid-template-columns: 1fr; gap: 2rem; } }

/* pie */
.pie { padding: 2rem clamp(1rem, 5vw, 4rem) 3rem; color: var(--tinta-suave); font-size: 0.9rem; }
.pie-ia { max-width: 70ch; }