:root {
  --ink: #090d10;
  --graphite: #171c20;
  --cloud: #f7faf8;
  --white: #ffffff;
  --steel: #c8d0cf;
  --muted: #8b9699;
  --cyan: #00e6b0;
  --lime: #00e6b0;
  --warm: #f7faf8;
  --rose: #f0526b;
  --line: rgba(9, 13, 16, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--cloud);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  min-height: 72px;
  padding: 12px 28px;
  color: var(--cloud);
  background: rgba(9, 13, 16, 0.84);
  border-bottom: 1px solid rgba(246, 248, 251, 0.12);
  backdrop-filter: blur(14px);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: block;
}

.brand-name {
  font-weight: 850;
  font-size: 17px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 26px;
  color: rgba(246, 248, 251, 0.82);
  font-size: 14px;
  font-weight: 650;
}

.nav-links a {
  padding: 10px 0;
}

.header-action,
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 800;
}

.header-action {
  padding: 0 16px;
  color: var(--ink);
  background: var(--cyan);
  font-size: 14px;
}

.header-action svg,
.primary-action svg,
.secondary-action svg,
.offer-card svg,
.architecture-map svg {
  width: 19px;
  height: 19px;
  stroke-width: 2.2;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 88vh;
  overflow: hidden;
  color: var(--cloud);
  background: var(--ink);
}

#systems-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(9, 13, 16, 0.96), rgba(9, 13, 16, 0.68) 48%, rgba(9, 13, 16, 0.18)),
    linear-gradient(180deg, rgba(9, 13, 16, 0.2), rgba(9, 13, 16, 0.78));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 840px;
  padding: 132px 28px 124px;
  margin-left: clamp(0px, 7vw, 112px);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 13px;
  line-height: 1.3;
  font-weight: 900;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--white);
  font-size: 88px;
  line-height: 0.96;
  letter-spacing: 0;
  font-weight: 900;
}

.hero-copy {
  max-width: 720px;
  margin: 28px 0 0;
  color: rgba(246, 248, 251, 0.84);
  font-size: 22px;
  line-height: 1.48;
  font-weight: 520;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.primary-action {
  padding: 0 20px;
  color: var(--ink);
  background: var(--lime);
  box-shadow: 0 16px 40px rgba(0, 230, 176, 0.14);
}

.secondary-action {
  padding: 0 18px;
  color: var(--cloud);
  border: 1px solid rgba(246, 248, 251, 0.28);
  background: rgba(246, 248, 251, 0.05);
}

.hero-status {
  position: absolute;
  z-index: 3;
  left: 28px;
  right: 28px;
  bottom: 24px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1180px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid rgba(246, 248, 251, 0.16);
  border-radius: 8px;
  background: rgba(246, 248, 251, 0.09);
}

.hero-status span {
  min-height: 56px;
  display: flex;
  align-items: center;
  padding: 0 18px;
  color: rgba(246, 248, 251, 0.86);
  background: rgba(9, 13, 16, 0.62);
  font-size: 14px;
  font-weight: 750;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.signal-strip div {
  min-height: 128px;
  padding: 26px 28px;
  background: var(--white);
}

.signal-strip strong {
  display: block;
  font-size: 20px;
  line-height: 1.2;
}

.signal-strip span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.section {
  padding: 88px 28px;
}

.band-light {
  background: var(--cloud);
}

.band-white {
  background: var(--white);
}

.band-ink {
  color: var(--cloud);
  background: var(--ink);
}

.section-heading {
  max-width: 900px;
  margin: 0 auto 44px;
}

.section-heading h2,
.closing h2 {
  margin: 0;
  color: var(--ink);
  font-size: 48px;
  line-height: 1.06;
  letter-spacing: 0;
  font-weight: 900;
}

.section-heading p:not(.eyebrow),
.closing p:not(.eyebrow) {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.section-heading.inverse h2,
.closing h2 {
  color: var(--white);
}

.section-heading.inverse p:not(.eyebrow),
.closing p:not(.eyebrow) {
  color: rgba(246, 248, 251, 0.72);
}

.offer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}

.offer-card,
.package-card {
  border-radius: 8px;
  background: var(--white);
  border: 1px solid rgba(9, 13, 16, 0.1);
}

.offer-card {
  min-height: 286px;
  padding: 26px;
}

.offer-card svg {
  color: var(--cyan);
  width: 28px;
  height: 28px;
}

.offer-card h3,
.package-card h3,
.method-lanes h3 {
  margin: 22px 0 12px;
  font-size: 22px;
  line-height: 1.16;
  font-weight: 850;
}

.offer-card p,
.package-card span,
.method-lanes p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.offer-card span {
  display: inline-flex;
  margin-top: 22px;
  padding: 8px 10px;
  color: var(--ink);
  background: rgba(0, 230, 176, 0.18);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 850;
}

.method-lanes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1180px;
  margin: 0 auto;
  background: rgba(246, 248, 251, 0.14);
  border: 1px solid rgba(246, 248, 251, 0.14);
}

.method-lanes article {
  min-height: 230px;
  padding: 28px;
  background: var(--ink);
}

.lane-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 34px;
  border-radius: 8px;
  color: var(--ink);
  background: var(--cyan);
  font-family: "SF Mono", ui-monospace, monospace;
  font-size: 14px;
  font-weight: 900;
}

.method-lanes h3 {
  color: var(--white);
}

.method-lanes p {
  color: rgba(246, 248, 251, 0.7);
}

.architecture-map {
  display: grid;
  grid-template-columns: 1fr 90px 1.6fr 90px 1fr;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px;
  background: var(--white);
  border: 1px solid rgba(9, 13, 16, 0.1);
  border-radius: 8px;
}

.arch-column {
  min-height: 164px;
  display: grid;
  align-content: center;
  gap: 10px;
  padding: 22px;
  color: var(--cloud);
  background: var(--graphite);
  border-radius: 8px;
}

.arch-column span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.arch-column strong {
  font-size: 20px;
  line-height: 1.25;
}

.arch-flow {
  height: 4px;
  background: linear-gradient(90deg, var(--cyan), var(--lime));
}

.arch-core {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0 18px;
}

.arch-core div {
  min-height: 116px;
  display: grid;
  align-content: center;
  gap: 14px;
  padding: 18px;
  color: var(--ink);
  background: var(--cloud);
  border: 1px solid rgba(9, 13, 16, 0.1);
  border-radius: 8px;
}

.arch-core svg {
  color: var(--cyan);
  width: 24px;
  height: 24px;
}

.package-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}

.package-card {
  min-height: 228px;
  padding: 28px;
}

.package-card.featured {
  color: var(--cloud);
  background: var(--graphite);
  border-color: var(--graphite);
}

.package-card h3 {
  margin-top: 0;
}

.package-card p {
  margin: 0 0 18px;
  color: var(--cyan);
  font-family: "SF Mono", ui-monospace, monospace;
  font-size: 18px;
  font-weight: 900;
}

.package-card.featured span {
  color: rgba(246, 248, 251, 0.75);
}

.closing {
  max-width: 900px;
  margin: 0 auto;
}

.closing .primary-action {
  margin-top: 32px;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 64px;
  }

  .hero-copy {
    font-size: 20px;
  }

  .signal-strip,
  .offer-grid,
  .method-lanes,
  .package-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .architecture-map {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .arch-flow {
    width: 4px;
    height: 48px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 66px;
    padding: 10px 16px;
  }

  .brand-name {
    font-size: 16px;
  }

  .header-action span {
    display: none;
  }

  .hero {
    min-height: 92vh;
  }

  .hero-content {
    padding: 118px 18px 196px;
    margin-left: 0;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-copy {
    font-size: 18px;
  }

  .hero-status,
  .signal-strip,
  .offer-grid,
  .method-lanes,
  .package-row,
  .arch-core {
    grid-template-columns: 1fr;
  }

  .hero-status {
    left: 18px;
    right: 18px;
    bottom: 18px;
  }

  .hero-status span {
    min-height: 44px;
  }

  .section {
    padding: 66px 18px;
  }

  .section-heading h2,
  .closing h2 {
    font-size: 34px;
  }

  .section-heading p:not(.eyebrow),
  .closing p:not(.eyebrow) {
    font-size: 17px;
  }
}

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

/* ── Mockup strip ─────────────────────────────────────────────────────────── */
.mockup-strip {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 0.65fr;
  grid-template-rows: auto;
  gap: 14px;
  align-items: start;
}

.mockup-item {
  border-radius: 10px;
  overflow: hidden;
  background: var(--graphite);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
}

.mockup-item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mockup-item.mockup-wide {
  grid-column: span 1;
}

.mockup-item.mockup-phone {
  border-radius: 16px;
}

@media (max-width: 900px) {
  .mockup-strip {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .mockup-item.mockup-wide {
    grid-column: span 2;
  }
}

@media (max-width: 580px) {
  .mockup-strip {
    grid-template-columns: 1fr;
  }
  .mockup-item.mockup-wide {
    grid-column: span 1;
  }
}

/* ── WCAG 2.4.7 · Foco visível ──────────────────────────────────── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}
*:focus:not(:focus-visible) { outline: none; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}