:root {
  --text: #9ca3af;
  --text-h: #f3f4f6;
  --bg: #16171d;
  --bg-subtle: #1c1d24;
  --border: #2e303a;
  --accent: #c084fc;
  --accent-bg: rgba(192, 132, 252, 0.15);
  --brand-from: #c02a9a;
  --brand-to: #2a35b0;
  --ok: #34d399;
  --warn: #fbbf24;
  --crit: #f87171;
  --sans: system-ui, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a { color: inherit; }
strong { color: var(--text-h); font-weight: 600; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text-h);
  text-decoration: none;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  color: #fff;
  background: linear-gradient(100deg, var(--brand-from), var(--brand-to));
  box-shadow: 0 8px 24px rgba(160, 50, 200, 0.25);
}

.btn--primary:hover { filter: brightness(1.12); }

.btn--ghost { border: 1px solid var(--border); color: var(--text-h); padding: 8px 16px; }
.btn--ghost:hover { background: var(--bg-subtle); }

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-top: 56px;
  padding-bottom: 72px;
}

h1, h2, h3 { color: var(--text-h); line-height: 1.2; margin: 0; }
h1 { font-size: clamp(32px, 4.6vw, 48px); letter-spacing: -0.02em; }
h2 { font-size: clamp(26px, 3.4vw, 34px); letter-spacing: -0.01em; }
h3 { font-size: 19px; }

.hero p { font-size: 19px; margin: 20px 0 32px; }

/* "Intelligent System Design" badge above the hero title. */
.hero p.kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid currentColor;
  border-radius: 999px;
}

.highlight {
  background: linear-gradient(100deg, #e879c9, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.demo {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-subtle);
  padding: 12px;
}

.demo svg { display: block; width: 100%; height: auto; }

.demo figcaption { font-size: 14px; text-align: center; padding: 6px 8px 2px; }

section { padding: 72px 0; border-top: 1px solid var(--border); }

.lead { max-width: 740px; margin: 16px 0 0; }

.questions {
  display: grid;
  gap: 16px;
  max-width: 760px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.questions li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 18px;
  color: var(--text-h);
}

/* Ícone de pergunta antes de cada item. */
.questions li::before {
  content: "?";
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-top: 1px;
  border-radius: 50%;
  background: var(--accent-bg);
  color: var(--accent);
  font-weight: 700;
  font-size: 15px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }

.showcase { display: grid; gap: 32px; margin-top: 40px; }
.showcase figure { margin: 0; }

.showcase img, .showcase video {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-subtle);
}

.showcase figcaption { margin-top: 12px; font-size: 15px; }

.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-subtle);
  padding: 24px;
}

.card p { margin: 10px 0 0; }

.concerns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0 40px;
}

.concerns > div { border-top: 2px solid var(--accent); padding-top: 14px; }
.concerns p { margin: 8px 0 0; }

.glossary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 40px 0 32px;
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }

.tag {
  font-family: var(--mono);
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--accent-bg);
  color: var(--accent);
}

.lens-list { margin: 40px 0 0; padding: 0; list-style: none; display: grid; gap: 20px; }

.lens-list li {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.lens-list li:last-child { border-bottom: 0; padding-bottom: 0; }

.lens-list h3 { display: flex; align-items: center; gap: 10px; }
.lens-list p { margin: 0; }

.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.dot--ok { background: var(--ok); }
.dot--warn { background: var(--warn); }
.dot--crit { background: var(--crit); }

.manifesto {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.statement { max-width: 760px; margin: 32px 0 0 !important; }

.manifesto blockquote, .statement {
  margin: 0;
  padding: 8px 0 8px 24px;
  border-left: 3px solid var(--accent);
  font-size: clamp(21px, 2.4vw, 26px);
  line-height: 1.35;
  color: var(--text-h);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.cta { text-align: center; }
.cta p { margin: 16px auto 32px; max-width: 600px; }

footer { border-top: 1px solid var(--border); padding: 28px 0; font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--text-h); text-decoration: underline; }

/* Pacotes correndo pelas conexões da ilustração. */
.packet { offset-rotate: 0deg; animation: travel linear infinite; }
@keyframes travel { from { offset-distance: 0%; } to { offset-distance: 100%; } }

.node-warn rect { animation: warn 2.4s ease-in-out infinite; }
.node-crit rect { animation: crit 1.2s ease-in-out infinite; }
@keyframes warn { 50% { stroke: var(--warn); fill: rgba(251, 191, 36, 0.12); } }
@keyframes crit { 50% { stroke: var(--crit); fill: rgba(248, 113, 113, 0.18); } }

@media (prefers-reduced-motion: reduce) {
  .packet, .node-warn rect, .node-crit rect { animation: none; }
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 24px; }
  .hero > * { min-width: 0; }
  .grid, .glossary, .concerns, .manifesto { grid-template-columns: 1fr; }
  .lens-list li { grid-template-columns: 1fr; gap: 8px; }
}

/* Seletor de idioma no cabeçalho. */
.header-actions { display: flex; align-items: center; gap: 16px; }
.langs { display: flex; gap: 2px; font-size: 13px; font-weight: 600; }
.langs a { padding: 4px 7px; border-radius: 6px; text-decoration: none; }
.langs a:hover { color: var(--text-h); background: var(--bg-subtle); }
.langs a[aria-current="true"] { color: var(--accent); background: var(--accent-bg); }

@media (max-width: 560px) {
  header .wrap { height: auto; min-height: 72px; flex-wrap: wrap; gap: 8px; padding-top: 12px; padding-bottom: 12px; }
  .header-actions { gap: 8px; flex-wrap: wrap; }
  .langs a { padding: 4px 5px; }
}

.plan-note {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--text);
  opacity: 0.85;
}

/* Planos e preços. */
.pricing {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 40px 0 0;
}

.price-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-subtle);
  padding: 24px;
}

.price-card--featured { border-color: var(--accent); }
.price-card--soon { opacity: 0.85; }
.price-card h3 { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.price-card p { margin: 6px 0 0; }

.price-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-bg);
  color: var(--accent);
}

.price { font-size: 26px; font-weight: 700; color: var(--text-h); margin-top: 16px !important; }
.price small { display: block; margin-top: 4px; font-size: 13px; font-weight: 400; color: var(--text); }
.price-card ul { margin: 16px 0 0; padding-left: 18px; font-size: 15px; }
.price-card li + li { margin-top: 6px; }

@media (max-width: 1000px) {
  .pricing { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .pricing { grid-template-columns: 1fr; }
}