:root {
  color-scheme: dark;
  --ink: #050505;
  --paper: #f2f0ea;
  --white: #fff;
  --line-light: rgba(255, 255, 255, 0.28);
  --line-dark: rgba(5, 5, 5, 0.22);
  font-family: Arial, Helvetica, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-size: 16px;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.skip-link {
  position: fixed;
  z-index: 100;
  left: 1rem;
  top: 1rem;
  padding: 0.8rem 1rem;
  color: var(--ink);
  background: var(--white);
  transform: translateY(-200%);
}

.skip-link:focus { transform: translateY(0); }

.topbar {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: 76px;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line-light);
  background: rgba(5, 5, 5, 0.76);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.brand img {
  width: 42px;
  height: 38px;
  object-fit: contain;
  filter: invert(1);
}

.status {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.14);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  50% { box-shadow: 0 0 0 10px rgba(255, 255, 255, 0); }
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background:
    linear-gradient(var(--line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-light) 1px, transparent 1px),
    var(--ink);
  background-size: 9vw 9vw;
}

.graphic-field {
  position: absolute;
  z-index: -1;
  top: 9%;
  right: -7vw;
  width: min(62vw, 940px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  opacity: 0.88;
}

.graphic-field::before {
  content: "";
  position: absolute;
  inset: 11%;
  border: 1px solid var(--white);
  transform: rotate(9deg);
}

.graphic-field::after {
  content: "";
  position: absolute;
  width: 62%;
  aspect-ratio: 1;
  background: var(--paper);
  transform: rotate(45deg);
  mix-blend-mode: difference;
}

.graphic-field img {
  position: relative;
  z-index: 2;
  width: 34%;
  filter: invert(1);
  animation: slow-turn 26s linear infinite;
}

.graphic-orbit,
.graphic-axis {
  position: absolute;
  border: 1px solid var(--white);
}

.graphic-orbit { border-radius: 50%; }
.orbit-one { inset: 0; }
.orbit-two { inset: 24%; }

.graphic-axis {
  width: 120%;
  height: 1px;
  border-width: 1px 0 0;
}

.axis-one { transform: rotate(28deg); }
.axis-two { transform: rotate(-28deg); }

@keyframes slow-turn { to { transform: rotate(360deg); } }

.hero-copy {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  padding: 132px 7vw 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.kicker {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.kicker.dark { color: var(--ink); }

h1 {
  margin: 2.5rem 0;
  max-width: 920px;
  font-size: clamp(4.5rem, 8.6vw, 8.2rem);
  font-weight: 900;
  line-height: 0.72;
  letter-spacing: -0.09em;
}

h1 span {
  color: transparent;
  -webkit-text-stroke: 2px var(--white);
}

.hero-action {
  width: min(100%, 850px);
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(280px, 0.9fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: end;
}

.hero-action > p {
  margin: 0;
  max-width: 43ch;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.55;
}

.whatsapp {
  min-height: 68px;
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--white);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  transition: background 160ms ease, color 160ms ease;
}

.whatsapp:hover,
.whatsapp:focus-visible {
  color: var(--ink);
  background: var(--white);
}

.arrow { font-size: 1.25rem; }

.side-note {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: 1.2rem;
  margin: 0;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  writing-mode: vertical-rl;
}

.signal {
  padding: 1rem 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  color: var(--ink);
  background: var(--white);
  border-bottom: 1px solid var(--ink);
}

.signal p {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.signal p:nth-child(2) { text-align: center; }
.signal p:last-child { text-align: right; }

.contact {
  position: relative;
  min-height: 86vh;
  padding: clamp(5rem, 10vw, 9rem) 6vw;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(3rem, 10vw, 9rem);
  align-items: end;
  overflow: hidden;
  color: var(--ink);
  background: var(--paper);
}

.contact::after {
  content: "";
  position: absolute;
  top: -18vw;
  right: -18vw;
  width: 46vw;
  aspect-ratio: 1;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
}

.contact-title,
.contact-copy { position: relative; z-index: 1; }

.contact h2 {
  margin: 1rem 0 0;
  font-size: clamp(5rem, 11vw, 10rem);
  line-height: 0.71;
  letter-spacing: -0.1em;
}

.contact-copy {
  padding-top: 2rem;
  border-top: 1px solid var(--ink);
}

.contact-copy > p:first-child {
  margin: 0 0 3rem;
  max-width: 40ch;
  font-size: 1.1rem;
  line-height: 1.6;
}

.text-link {
  padding: 1rem 0;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--ink);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  transition: padding 160ms ease;
}

.text-link:hover,
.text-link:focus-visible { padding-inline: 0.5rem; }

.privacy-note {
  margin: 2rem 0 0;
  max-width: 48ch;
  font-size: 0.75rem;
  line-height: 1.55;
  opacity: 0.62;
}

footer {
  min-height: 46vh;
  padding: 3rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-top: 1px solid var(--line-light);
}

footer > img {
  width: min(76vw, 1000px);
  margin: auto;
  filter: invert(1);
}

footer > div {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
}

footer p {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

@media (max-width: 780px) {
  .topbar { height: 66px; padding-inline: 1rem; }
  .brand span { display: none; }
  .brand img { width: 38px; height: 34px; }
  .status { font-size: 0.62rem; }

  .hero { background-size: 28vw 28vw; }
  .hero-copy { padding: 104px 1.2rem 1.4rem; }
  .graphic-field { top: 11%; right: -58vw; width: 142vw; opacity: 0.42; }
  h1 { margin: auto 0 3rem; font-size: clamp(4rem, 19vw, 7.2rem); }
  .hero-action { grid-template-columns: 1fr; gap: 1.5rem; }
  .side-note { display: none; }

  .signal { padding-inline: 1rem; grid-template-columns: 1fr auto; gap: 1rem; }
  .signal p:nth-child(2) { display: none; }

  .contact { grid-template-columns: 1fr; padding-inline: 1.2rem; }
  .contact h2 { font-size: clamp(4.8rem, 25vw, 8rem); }
  .contact::after { width: 90vw; top: -34vw; right: -40vw; }
  footer { min-height: 34vh; padding-inline: 1.2rem; }
  footer > img { width: 92vw; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}