:root {
  --bg:      oklch(97.2% 0.003 250);
  --surface: oklch(100% 0 0);
  --fg:      oklch(19% 0.012 250);
  --muted:   oklch(40% 0.010 250);
  --border:  oklch(87% 0.006 250);
  --accent:  oklch(40% 0.150 29);
  --accent-line: oklch(53% 0.150 29);
  --focus:   oklch(55% 0.140 250);

  --font-display: 'IBM Plex Serif', 'Charter', Georgia, serif;
  --font-body:    'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --nav-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; margin: 0; }
p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

/* ---------------------------------------------------------------- */
/* Header                                                            */
/* ---------------------------------------------------------------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.logo-mark {
  width: 26px;
  height: 26px;
  flex: none;
}
.logo-word {
  font-weight: 500;
  color: var(--fg);
}
.logo-word .dim { color: var(--muted); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--fg);
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms ease, color 150ms ease;
}
.nav-links a:hover { border-bottom-color: var(--fg); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--fg);
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: 2px;
  transition: border-color 150ms ease, background 150ms ease;
  white-space: nowrap;
}
.nav-cta:hover { border-color: var(--fg); background: var(--surface); }

.nav-right { display: flex; align-items: center; gap: 22px; }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 2px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.menu-toggle svg { width: 18px; height: 18px; }

/* ---------------------------------------------------------------- */
/* Hero                                                               */
/* ---------------------------------------------------------------- */
section.hero {
  padding-top: clamp(56px, 8vw, 88px);
  padding-bottom: 96px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: 72px;
  align-items: center;
}
.hero-copy { max-width: none; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 26px;
  display: block;
}

h1.headline {
  font-size: clamp(28px, 2.9vw, 36px);
  line-height: 1.28;
  letter-spacing: -0.008em;
  color: var(--fg);
}

p.subcopy {
  font-size: 18px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 54ch;
  margin-top: 26px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 38px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: oklch(98% 0 0);
  font-weight: 600;
  font-size: 15.5px;
  padding: 15px 26px;
  border-radius: 2px;
  border: 1px solid var(--accent);
  transition: background 150ms ease, transform 150ms ease;
  white-space: nowrap;
}
.btn-primary:hover { background: oklch(34% 0.150 29); border-color: oklch(34% 0.150 29); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary svg { width: 16px; height: 16px; flex: none; }

.tags-line {
  margin-top: 44px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--muted);
  padding-top: 22px;
  border-top: 1px solid var(--border);
  max-width: 54ch;
}

/* hero visual panel */
.hero-diagram {
  position: relative;
}
.hero-panel {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--surface);
}
.hero-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.diagram-caption {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
  text-align: right;
}

/* ---------------------------------------------------------------- */
/* Second section — opening only                                     */
/* ---------------------------------------------------------------- */
section.problem-intro {
  border-top: 1px solid var(--border);
  padding-top: 96px;
  padding-bottom: 120px;
}
.problem-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  max-width: 780px;
}
h2.problem-headline {
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.015em;
}
p.problem-copy {
  font-size: 18px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 62ch;
}
.problem-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  max-width: 62ch;
}
.problem-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  font-size: 17px;
  line-height: 1.5;
  color: var(--fg);
}

/* ---------------------------------------------------------------- */
/* Shared section headline (reused visual scale across sections)     */
/* ---------------------------------------------------------------- */
.metodo-headline,
.solucoes-headline,
.principio-headline,
.capacidades-headline,
.cta-final-headline {
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

/* ---------------------------------------------------------------- */
/* Método                                                             */
/* ---------------------------------------------------------------- */
section.metodo {
  border-top: 1px solid var(--border);
  padding-top: 96px;
  padding-bottom: 120px;
}
.metodo-grid { max-width: 780px; }
.metodo-list {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  border-top: 1px solid var(--border);
}
.metodo-step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding-top: 2px;
}
.step-body {
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg);
}
.step-body strong { font-weight: 600; }

/* ---------------------------------------------------------------- */
/* Soluções                                                           */
/* ---------------------------------------------------------------- */
section.solucoes {
  border-top: 1px solid var(--border);
  padding-top: 96px;
  padding-bottom: 120px;
}
.solucoes-grid {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.solucoes-grid li {
  background: var(--bg);
  padding: 30px 32px;
}
.solucoes-grid li:last-child { grid-column: 1 / -1; }
.solucoes-grid h3 {
  font-size: 19px;
  font-weight: 500;
  margin-bottom: 8px;
}
.solucoes-grid p {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------------------------------------------------------------- */
/* Princípio                                                          */
/* ---------------------------------------------------------------- */
section.principio {
  border-top: 1px solid var(--border);
  padding-top: 96px;
  padding-bottom: 120px;
}
.principio-grid { max-width: 780px; }
.principio-lead {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  line-height: 1.6;
  color: var(--fg);
  margin-top: 28px;
  max-width: 56ch;
}
.principio-rules {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
}
.principio-rules li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--muted);
}
.principio-closing {
  margin-top: 32px;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}

/* ---------------------------------------------------------------- */
/* Projetos / Capacidades                                             */
/* ---------------------------------------------------------------- */
section.capacidades {
  border-top: 1px solid var(--border);
  padding-top: 96px;
  padding-bottom: 120px;
}
.capacidades-strip {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.capacidades-strip li {
  padding: 26px 22px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--fg);
}

/* ---------------------------------------------------------------- */
/* Final CTA                                                          */
/* ---------------------------------------------------------------- */
section.cta-final {
  border-top: 1px solid var(--border);
  padding-top: 96px;
  padding-bottom: 112px;
}
.cta-final-grid { max-width: 680px; }
.cta-final-copy {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 52ch;
}
.cta-final-grid .btn-primary { margin-top: 36px; }

/* ---------------------------------------------------------------- */
/* Footer                                                             */
/* ---------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-top: 40px;
  padding-bottom: 40px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-name {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fg);
}
.footer-tagline {
  font-size: 13px;
  color: var(--muted);
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
}
.footer-contact {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--fg);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: border-color 150ms ease;
}
.footer-contact:hover { border-color: var(--fg); }
.footer-copyright {
  width: 100%;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* ---------------------------------------------------------------- */
/* Responsive                                                         */
/* ---------------------------------------------------------------- */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero-diagram { order: -1; max-width: 340px; margin: 0 auto; }
  h1.headline { max-width: none; }
}

@media (max-width: 760px) {
  .wrap { padding-left: 20px; padding-right: 20px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .menu-toggle { display: inline-flex; }
  .hero-diagram { order: 0; }
  section.hero { padding-top: 48px; padding-bottom: 64px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 16px; }
  .btn-primary { width: 100%; justify-content: center; }
  section.problem-intro { padding-top: 64px; padding-bottom: 80px; }
  section.metodo,
  section.solucoes,
  section.principio,
  section.capacidades,
  section.cta-final {
    padding-top: 64px;
    padding-bottom: 80px;
  }
  .metodo-step { grid-template-columns: 40px 1fr; gap: 16px; }
  .solucoes-grid { grid-template-columns: 1fr; }
  .solucoes-grid li:last-child { grid-column: auto; }
  .capacidades-strip { grid-template-columns: 1fr; }
  .cta-final-grid .btn-primary { width: 100%; justify-content: center; }
  .footer-copyright { margin-top: 4px; }
}

.mobile-drawer {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: var(--bg);
  z-index: 49;
  padding: 32px;
  border-top: 1px solid var(--border);
}
.mobile-drawer.open { display: block; }
.mobile-drawer nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-drawer a {
  font-family: var(--font-mono);
  font-size: 15px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; }
}

/* ---------------------------------------------------------------- */
/* Legal pages (privacy.html)                                         */
/* ---------------------------------------------------------------- */
.legal-section { border-top: 1px solid var(--border); padding-top: 96px; padding-bottom: 120px; }
.legal-grid { max-width: 720px; }
.legal-grid h2 { font-size: clamp(24px, 3vw, 32px); line-height: 1.25; letter-spacing: -0.01em; margin-top: 48px; }
.legal-grid h2:first-child { margin-top: 0; }
.legal-grid p, .legal-grid li { font-size: 16.5px; line-height: 1.7; color: var(--muted); }
.legal-grid ul { margin: 16px 0 0; padding-left: 20px; }
.legal-grid li { margin-bottom: 8px; }
.legal-grid a { border-bottom: 1px solid var(--border); }
.legal-grid a:hover { border-color: var(--fg); }
.legal-updated { font-family: var(--font-mono); font-size: 13px; color: var(--muted); margin-bottom: 32px; display: block; }