:root {
  --blue-black: #16191e;
  --near-black: #121418;
  --smoke: #efeeeb;
  --blue-light: #f1f5fa;
  --grey-blue: #8493ab;
  --slate-blue: #5c6778;
  --red: #ff1c24;
  --rule-dark: rgba(239, 238, 235, 0.14);
  --rule-light: rgba(22, 25, 30, 0.14);
  --sans: "Archivo", Helvetica, Arial, sans-serif;
  --mono: "Space Mono", monospace;
  --max: 1440px;
  --pad: clamp(20px, 4vw, 56px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--blue-black);
  color: var(--smoke);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.mono {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.section-label {
  color: var(--grey-blue);
  margin-bottom: clamp(32px, 5vw, 64px);
}
.section-label::before { content: "● "; color: var(--red); font-size: 9px; vertical-align: 2px; }
.section-label--dark { color: var(--slate-blue); }

.display {
  font-weight: 500;
  font-size: clamp(40px, 6.5vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--pad);
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(22, 25, 30, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--rule-dark);
}
.nav__logo {
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.18em;
}
.nav__links {
  display: flex;
  gap: 36px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--smoke);
}
.nav__links a { opacity: 0.7; transition: opacity 0.2s; }
.nav__links a:hover { opacity: 1; }
.nav__cta {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 10px 22px;
  border: 1px solid var(--rule-dark);
  border-radius: 2px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.nav__cta:hover { background: var(--smoke); color: var(--blue-black); border-color: var(--smoke); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; }
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.6s ease;
  filter: saturate(0.85) contrast(1.05);
}
.hero__video.is-active { opacity: 1; }
.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(22, 25, 30, 0.55), rgba(22, 25, 30, 0.25) 40%, rgba(22, 25, 30, 0.75));
}
.hero__inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 var(--pad);
}
.hero__line {
  font-weight: 500;
  font-size: clamp(52px, 10.5vw, 160px);
  line-height: 0.95;
  letter-spacing: -0.035em;
}
.hero__line.is-bottom { color: var(--blue-light); }
.hero__line.is-top { opacity: 0.92; }
.hero__foot {
  position: absolute;
  z-index: 2;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  padding: 0 var(--pad) 36px;
}
.hero__sub {
  max-width: 480px;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(239, 238, 235, 0.85);
}
.hero__scrollcue {
  color: var(--grey-blue);
  animation: pulse 2.4s ease-in-out infinite;
  white-space: nowrap;
}
@keyframes pulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 1; } }

/* ---------- Belief ---------- */
.belief {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(100px, 12vw, 180px) var(--pad);
}
.belief__words { display: flex; flex-direction: column; }
.belief__word {
  font-weight: 500;
  font-size: clamp(56px, 9vw, 150px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  margin-left: calc(var(--indent) * clamp(40px, 9vw, 180px));
}
.belief__word--accent { color: var(--red); }
.belief__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  margin-top: clamp(64px, 8vw, 112px);
  max-width: 1080px;
  margin-left: auto;
  color: var(--grey-blue);
  font-size: 17px;
  line-height: 1.75;
}
.belief__cols strong { color: var(--smoke); font-weight: 600; }

/* ---------- Sectors ---------- */
.sectors {
  border-top: 1px solid var(--rule-dark);
  padding: clamp(100px, 12vw, 180px) var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}
.sectors__head { margin-bottom: clamp(48px, 6vw, 88px); }
.sectors__intro {
  max-width: 520px;
  margin-top: 28px;
  color: var(--grey-blue);
  font-size: 16px;
  line-height: 1.7;
}
.sectors__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}
.tile {
  position: relative;
  grid-column: span var(--span);
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 4px;
  background: var(--near-black);
}
.tile--wide { aspect-ratio: 32 / 10; }
.tile__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8);
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s;
}
.tile:hover .tile__video { transform: scale(1.045); filter: saturate(1); }
.tile__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px 24px;
  background: linear-gradient(to top, rgba(18, 20, 24, 0.85), rgba(18, 20, 24, 0.12) 55%, rgba(18, 20, 24, 0.25));
}
.tile__tag {
  color: var(--grey-blue);
  margin-bottom: auto;
  padding-top: 2px;
}
.tile__title {
  font-weight: 500;
  font-size: clamp(20px, 2vw, 30px);
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.tile__desc {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.5;
  color: rgba(239, 238, 235, 0.75);
  max-width: 420px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s, transform 0.4s;
}
.tile:hover .tile__desc { opacity: 1; transform: translateY(0); }

/* ---------- Model (light) ---------- */
.model {
  background: var(--smoke);
  color: var(--blue-black);
  padding: clamp(100px, 12vw, 180px) var(--pad);
}
.model .display, .model__steps, .model__flow { max-width: var(--max); margin-left: auto; margin-right: auto; }
.model .section-label { max-width: var(--max); margin-left: auto; margin-right: auto; }
.model__steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: clamp(56px, 7vw, 96px);
}
.model__step { border-top: 2px solid var(--blue-black); padding-top: 24px; }
.model__num { color: var(--red); display: block; margin-bottom: 40px; }
.model__step h3 {
  font-weight: 500;
  font-size: clamp(26px, 2.6vw, 38px);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.model__step p { color: var(--slate-blue); font-size: 15.5px; line-height: 1.7; }
.model__flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: clamp(64px, 8vw, 104px);
  padding: 28px 32px;
  border: 1px solid var(--rule-light);
  border-radius: 4px;
  font-weight: 500;
  font-size: clamp(17px, 1.8vw, 24px);
  letter-spacing: -0.01em;
}
.model__flow-arrow { color: var(--red); font-size: 16px; }
.model__flow-end { color: var(--red); }

/* ---------- Partners ---------- */
.partners {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(100px, 12vw, 180px) var(--pad);
}
.partners__rows { display: flex; flex-direction: column; }
.partners__row {
  display: grid;
  grid-template-columns: 280px 1fr 1.2fr;
  gap: 40px;
  align-items: start;
  padding: 44px 0;
  border-top: 1px solid var(--rule-dark);
}
.partners__row:last-child { border-bottom: 1px solid var(--rule-dark); }
.partners__tag { color: var(--grey-blue); padding-top: 6px; }
.partners__row h3 {
  font-weight: 500;
  font-size: clamp(24px, 2.4vw, 34px);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.partners__row p { color: var(--grey-blue); font-size: 15.5px; line-height: 1.7; }

/* ---------- CTA ---------- */
.cta {
  text-align: center;
  padding: clamp(110px, 14vw, 200px) var(--pad);
  border-top: 1px solid var(--rule-dark);
}
.cta__title {
  font-weight: 500;
  font-size: clamp(48px, 8vw, 128px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: 44px;
}
.cta__title em { font-style: normal; color: var(--red); }
.cta__link {
  display: inline-block;
  font-size: 15px;
  padding: 16px 34px;
  border: 1px solid var(--rule-dark);
  border-radius: 2px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.cta__link:hover { background: var(--smoke); color: var(--blue-black); border-color: var(--smoke); }

/* ---------- LP Contact ---------- */
.contact {
  border-top: 1px solid var(--rule-dark);
  background: var(--near-black);
}
.contact__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(100px, 12vw, 180px) var(--pad);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px, 7vw, 120px);
  align-items: start;
}
.contact__title {
  font-weight: 500;
  font-size: clamp(44px, 5.5vw, 88px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: 28px;
}
.contact__copy {
  color: var(--grey-blue);
  font-size: 16.5px;
  line-height: 1.75;
  max-width: 440px;
}
.contact__alt {
  margin-top: 40px;
  color: var(--slate-blue);
  line-height: 2;
}
.contact__alt a {
  color: var(--smoke);
  border-bottom: 1px solid var(--rule-dark);
  transition: border-color 0.2s, color 0.2s;
}
.contact__alt a:hover { color: var(--red); border-color: var(--red); }

.contact__form { display: flex; flex-direction: column; gap: 28px; }
.field { display: flex; flex-direction: column; gap: 10px; }
.field__label { color: var(--grey-blue); }
.field__input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--rule-dark);
  border-radius: 0;
  padding: 12px 2px;
  font-family: var(--sans);
  font-size: 17px;
  color: var(--smoke);
  transition: border-color 0.25s;
  outline: none;
  resize: vertical;
}
.field__input::placeholder { color: var(--slate-blue); }
.field__input:focus { border-bottom-color: var(--smoke); }
.field.is-invalid .field__input { border-bottom-color: var(--red); }
.field__error { color: var(--red); min-height: 14px; text-transform: none; }
.field__input--area { min-height: 120px; line-height: 1.6; }
.contact__submit {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--smoke);
  color: var(--blue-black);
  border: 1px solid var(--smoke);
  border-radius: 2px;
  padding: 16px 36px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.contact__submit:hover { background: var(--red); border-color: var(--red); color: var(--smoke); }
.contact__submit:disabled { opacity: 0.55; cursor: wait; }
.contact__status { color: var(--grey-blue); text-transform: none; min-height: 16px; }
.contact__status.is-ok { color: #6fcf8f; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--rule-dark); }
.footer__marquee { overflow: hidden; padding: 18px 0; border-bottom: 1px solid var(--rule-dark); }
.footer__track {
  display: flex;
  white-space: nowrap;
  width: max-content;
  color: var(--grey-blue);
  animation: marquee 30s linear infinite;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.footer__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 32px var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}
.footer__logo { font-weight: 600; letter-spacing: 0.18em; }
.footer__legal { color: var(--slate-blue); text-transform: none; }

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .footer__track, .hero__scrollcue { animation: none; }
  .hero__video { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .nav__links { display: none; }
  .hero__foot { flex-direction: column; align-items: flex-start; gap: 20px; }
  .belief__word { margin-left: calc(var(--indent) * 24px); }
  .belief__cols { grid-template-columns: 1fr; gap: 24px; }
  .sectors__grid { grid-template-columns: 1fr; gap: 12px; }
  .tile, .tile--wide { grid-column: span 1; aspect-ratio: 16 / 10; }
  .model__steps { grid-template-columns: 1fr; gap: 32px; }
  .contact__inner { grid-template-columns: 1fr; gap: 56px; }
  .partners__row { grid-template-columns: 1fr; gap: 14px; padding: 36px 0; }
  .footer__bar { flex-direction: column; text-align: center; }
}
