/* DuckIA — landing. Dirección "Pliegue en escena". Ver contrato en index.html. */

:root {
  --bg: #08080a;
  --bg-raised: #131313;
  --bg-raised-2: #1a1a1a;
  --gold: #d9b06a;
  --gold-bright: #f0c987;
  --gold-deep: #8a6a2e;
  --gold-dim: #4a3717;
  --silver: #b7bac0;
  --silver-dim: #6b6e73;
  --ink: #f6f4ee;
  --ink-dim: rgba(246, 244, 238, 0.66);
  --ink-faint: rgba(246, 244, 238, 0.38);

  --font-display: 'Unbounded', 'Segoe UI', sans-serif;
  --font-body: 'Hanken Grotesk', 'Segoe UI', sans-serif;
  --font-mono: 'Martian Mono', 'Consolas', monospace;

  --edge: 1px solid rgba(217, 176, 106, 0.22);
  --container: min(1180px, 100% - 3rem);

  --ease-fold: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--gold);
  color: #0a0a0a;
  padding: 0.75rem 1.25rem;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- shared type / layout helpers ---------- */

.facet-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin: 0 auto 1.75rem;
  width: var(--container);
}
.facet-tag::before {
  content: '';
  width: 0;
  height: 0;
  border-left: 6px solid var(--gold);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.4vw, 2.7rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 auto 3rem;
  width: var(--container);
}
.section-title--center { text-align: center; width: min(880px, 100% - 3rem); }

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
  padding: 0.95em 1.7em;
  border-radius: 999px;
  border: 1.5px solid var(--gold);
  background: rgba(217, 176, 106, 0.06);
  transition: background 0.25s var(--ease-fold), transform 0.25s var(--ease-fold), box-shadow 0.25s var(--ease-fold);
  will-change: transform;
}
.cta:hover, .cta:focus-visible {
  background: var(--gold);
  color: #0c0a06;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -8px rgba(217, 176, 106, 0.55);
}
.cta__icon { width: 1.1em; height: 1.1em; flex: none; }

/* ---------- wordmark (fixed, tiny) ---------- */

.wordmark {
  position: fixed;
  top: 1.5rem;
  left: 1.75rem;
  z-index: 40;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  mix-blend-mode: difference;
  color: #fff;
}
.wordmark__accent { color: var(--gold-bright); mix-blend-mode: normal; }

/* ---------- HERO ---------- */

.hero {
  position: relative;
  height: 260vh;
  background: var(--bg);
}

.hero__pin {
  position: sticky;
  top: 0;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
}

.hero__stage {
  position: absolute;
  inset: 0;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform;
}
.hero__video--portrait { display: none; }

.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4,4,3,0.55) 0%, rgba(4,4,3,0.15) 30%, rgba(4,4,3,0.05) 55%, rgba(4,4,3,0.75) 100%),
    linear-gradient(90deg, rgba(4,4,3,0.72) 0%, rgba(4,4,3,0.32) 38%, rgba(4,4,3,0) 62%);
}

.hero__content {
  position: relative;
  z-index: 5;
  height: 100%;
  width: var(--container);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 12vh;
  will-change: transform, opacity;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 0.9rem;
  max-width: 14ch;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--ink-dim);
  margin: 0 0 2.1rem;
  max-width: 32ch;
}

.cta--hero { align-self: flex-start; }

.hero__scrollcue {
  position: absolute;
  right: 2rem;
  bottom: 2.25rem;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  will-change: opacity;
}
.hero__scrollcue span {
  width: 1px;
  height: 34px;
  background: linear-gradient(180deg, var(--gold) 0%, transparent 100%);
  animation: scrollcue 1.8s var(--ease-fold) infinite;
}
@keyframes scrollcue {
  0% { transform: scaleY(0.3); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(0.3); transform-origin: bottom; opacity: 0.4; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__scrollcue span { animation: none; }
}

/* ---------- INTRO ---------- */

.intro {
  padding: 7rem 0;
  border-top: var(--edge);
}
.intro__text {
  width: var(--container);
  margin: 0 auto;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(1.25rem, 2.4vw, 1.9rem);
  line-height: 1.45;
  color: var(--ink-dim);
  max-width: 26ch;
}
.intro__text strong { color: var(--ink); font-weight: 700; }

/* ---------- SERVICIOS ---------- */

.servicios {
  padding: 5rem 0 7rem;
  border-top: var(--edge);
}

.servicios__grid {
  width: var(--container);
  margin: 0 auto;
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(217, 176, 106, 0.16);
  border: 1px solid rgba(217, 176, 106, 0.16);
}

.servicio-card {
  position: relative;
  background: var(--bg-raised);
  padding: 2.4rem 1.9rem 2.6rem;
  overflow: hidden;
}
.servicio-card--wide { grid-column: span 2; }

.servicio-card__fold {
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-top: 34px solid var(--gold-dim);
  border-left: 34px solid transparent;
  transition: border-top-color 0.3s var(--ease-fold);
}
.servicio-card:hover .servicio-card__fold { border-top-color: var(--gold); }

.servicio-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.08rem;
  line-height: 1.3;
  margin: 0 0 0.9rem;
  padding-right: 1.5rem;
}
.servicio-card p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* ---------- PROCESO ---------- */

.proceso {
  padding: 6rem 0 7rem;
  border-top: var(--edge);
  background: linear-gradient(180deg, transparent, rgba(217,176,106,0.035), transparent);
}

.proceso__timeline {
  width: var(--container);
  margin: 0 auto;
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  position: relative;
}

.proceso__step { position: relative; }

.proceso__step-head {
  display: flex;
  align-items: center;
  margin-bottom: 1.4rem;
}
.proceso__step-head::after {
  content: '';
  flex: 1 1 auto;
  height: 1px;
  margin-left: 1rem;
  background: repeating-linear-gradient(90deg, var(--gold) 0 10px, transparent 10px 16px);
  opacity: 0.6;
}
.proceso__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #0c0a06;
  background: var(--gold);
  clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
  position: relative;
  z-index: 2;
}
.proceso__step h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.2rem;
  margin: 0 0 0.7rem;
}
.proceso__step p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.96rem;
  line-height: 1.55;
  max-width: 32ch;
}

/* ---------- POR QUÉ ---------- */

.porque {
  padding: 7rem 0;
  border-top: var(--edge);
  display: flex;
  justify-content: center;
}
.porque__quote {
  width: var(--container);
  max-width: 900px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.6vw, 2rem);
  line-height: 1.45;
  color: var(--ink-dim);
  text-align: center;
  font-style: normal;
}
.porque__quote-accent {
  display: block;
  color: var(--gold-bright);
  margin: 0.6em 0;
}

/* ---------- FUNDADOR ---------- */

.fundador {
  padding: 6rem 0 7rem;
  border-top: var(--edge);
}
.fundador__grid {
  width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.fundador__photo-wrap {
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 88% 100%, 0 100%);
  background: var(--bg-raised);
}
.fundador__photo {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  object-position: 50% 25%;
  filter: url(#duotone-gold) contrast(1.08) brightness(1.04);
}
.fundador__photo-fold {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 0;
  height: 0;
  border-bottom: 36px solid var(--gold);
  border-left: 36px solid transparent;
  opacity: 0.9;
}

.fundador__quote {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 1.6rem;
}
.fundador__signature {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--gold);
  margin: 0;
  line-height: 1.6;
}
.fundador__signature span { color: var(--ink-faint); }

/* ---------- CONTACTO ---------- */

.contacto {
  position: relative;
  padding: 8rem 0 6rem;
  border-top: var(--edge);
  overflow: hidden;
  text-align: center;
}
.contacto__fold {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 55% at 50% 0%, rgba(217,176,106,0.14), transparent 70%);
  pointer-events: none;
}
.contacto__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.contacto__accent { color: var(--gold-bright); }
.cta--final { font-size: 1.05rem; padding: 1.1em 2.1em; }
.contacto__handle {
  margin: 2rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}
.contacto__handle a { text-decoration: none; color: var(--ink-dim); }
.contacto__handle a:hover { color: var(--gold); }

/* ---------- FOOTER ---------- */

.site-footer {
  border-top: var(--edge);
  padding: 2rem 1.5rem;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}
.site-footer__sep { color: var(--gold-deep); }

/* ---------- reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease-fold), transform 0.7s var(--ease-fold);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.servicios__grid .reveal:nth-child(2) { transition-delay: 0.06s; }
.servicios__grid .reveal:nth-child(3) { transition-delay: 0.12s; }
.servicios__grid .reveal:nth-child(4) { transition-delay: 0.18s; }
.servicios__grid .reveal:nth-child(5) { transition-delay: 0.24s; }

.proceso__timeline .reveal:nth-child(2) { transition-delay: 0.1s; }
.proceso__timeline .reveal:nth-child(3) { transition-delay: 0.2s; }

/* ---------- responsive ---------- */

@media (max-width: 880px) {
  .servicios__grid { grid-template-columns: repeat(2, 1fr); }
  .servicio-card--wide { grid-column: span 2; }
  .fundador__grid { grid-template-columns: 1fr; }
  .fundador__photo-wrap { max-width: none; width: max-content; margin: 0 auto; }
  .fundador__photo { width: auto; height: 90px; aspect-ratio: 4 / 3; }
  .fundador__photo-fold { border-bottom-width: 16px; border-left-width: 16px; }
  .proceso__timeline { grid-template-columns: 1fr; gap: 2.75rem; }
  .proceso__step-head::after { display: none; }
}

@media (max-width: 640px) {
  .hero__video--landscape { display: none; }
  .hero__video--portrait { display: block; }
  .hero__content { padding-bottom: 9vh; }
  .servicios__grid { grid-template-columns: 1fr; }
  .servicio-card--wide { grid-column: span 1; }
  .hero__scrollcue { right: 1.25rem; bottom: 1.5rem; }
  .wordmark { top: 1.1rem; left: 1.1rem; font-size: 1rem; }
}