/* ==========================================================================
   DataShip — Landing Page
   Dados que fazem empresas decidirem melhor.
   ========================================================================== */

:root {
  /* Navy scale (brand primary: #0A1628) */
  --navy-950: #05090f;
  --navy-900: #0a1628;
  --navy-850: #0c1c33;
  --navy-800: #0f2038;
  --navy-700: #142a45;
  --navy-600: #1c3a5c;
  --navy-500: #2a4d75;

  --border-subtle: rgba(148, 180, 220, 0.14);
  --border-strong: rgba(148, 180, 220, 0.30);
  --border-glow: rgba(34, 211, 238, 0.45);

  /* Brand blues (sampled from official logo) */
  --blue-600: #0b5fc4;
  --blue-500: #1487e8;
  --blue-400: #2aa8e8;
  --cyan-400: #22d3ee;
  --cyan-300: #67e8f9;

  --gradient-brand: linear-gradient(135deg, var(--blue-500) 0%, var(--cyan-400) 100%);
  --gradient-brand-soft: linear-gradient(135deg, rgba(20, 135, 232, 0.16), rgba(34, 211, 238, 0.16));
  --gradient-text: linear-gradient(120deg, #eaf6ff 0%, var(--cyan-300) 50%, var(--blue-400) 100%);

  --text-primary: #f5f9ff;
  --text-secondary: #b9c8de;
  --text-muted: #7e92af;

  --shadow-glow: 0 0 0 1px rgba(34, 211, 238, 0.12), 0 20px 60px -20px rgba(20, 135, 232, 0.45);
  --shadow-card: 0 10px 30px -12px rgba(2, 8, 20, 0.6);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;

  --container: 1240px;
  --header-h: 76px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--navy-900);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
svg { display: block; }

h1, h2, h3, h4, .font-display {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -60px;
  background: var(--cyan-400);
  color: var(--navy-950);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 999;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 768px) { .container { padding-inline: 2rem; } }

section { position: relative; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-300);
  margin-bottom: 1rem;
}

.section-head {
  max-width: 680px;
  margin-bottom: 3rem;
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .section-lead { margin-inline: auto; }

h2.section-title {
  font-size: clamp(1.75rem, 1.35rem + 1.8vw, 2.75rem);
  line-height: 1.15;
  color: var(--text-primary);
}
.section-title .accent { color: var(--cyan-300); }
.section-lead {
  margin-top: 1rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.25s var(--ease); }

.btn-primary {
  background: var(--gradient-brand);
  color: #041022;
  box-shadow: 0 10px 30px -10px rgba(34, 211, 238, 0.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(34, 211, 238, 0.7); }
.btn-primary:hover svg { transform: translateX(3px); }

.btn-ghost {
  background: rgba(255,255,255,0.03);
  color: var(--text-primary);
  border-color: var(--border-strong);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.07); border-color: var(--border-glow); transform: translateY(-2px); }

.btn-sm { padding: 0.65rem 1.3rem; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: 1.1rem;
  transition: padding 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  padding-block: 0.7rem;
  background: rgba(8, 16, 30, 0.75);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 10px 30px -20px rgba(0,0,0,0.6);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.brand-mark {
  position: relative;
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
}
.brand-mark img { width: 100%; height: auto; filter: drop-shadow(0 0 10px rgba(34,211,238,0.35)); }
.brand-word {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
}
.brand-word .data { color: #ffffff; }
.brand-word .ship { color: var(--blue-400); }

.main-nav { display: none; }
.main-nav ul { display: flex; align-items: center; gap: 2rem; }
.main-nav a {
  position: relative;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding-block: 0.3rem;
  transition: color 0.2s ease;
}
.main-nav a::after {
  content: '';
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
  transition: width 0.25s var(--ease);
}
.main-nav a:hover { color: var(--text-primary); }
.main-nav a:hover::after { width: 100%; }

.header-cta { display: none; }

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}
.menu-toggle svg { width: 20px; height: 20px; }
.menu-toggle .icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-open { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(8, 16, 30, 0.92);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a {
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
}
.mobile-nav a:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.mobile-nav .btn { margin-top: 0.5rem; }

@media (min-width: 1024px) {
  .main-nav { display: block; }
  .header-cta { display: inline-flex; }
  .menu-toggle { display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding-top: calc(var(--header-h) + 4.5rem);
  padding-bottom: 5rem;
  background:
    radial-gradient(60% 50% at 85% -10%, rgba(20,135,232,0.22), transparent 60%),
    radial-gradient(50% 40% at 5% 15%, rgba(34,211,238,0.10), transparent 60%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-850) 100%);
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(94,163,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94,163,255,0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 40%, transparent 85%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  gap: 3.5rem;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero-inner { grid-template-columns: 1.05fr 0.95fr; gap: 2.5rem; }
}

.hero-copy h1 {
  font-size: clamp(2.2rem, 1.6rem + 3vw, 3.6rem);
  line-height: 1.08;
  color: var(--text-primary);
}
.hero-copy .lead {
  margin-top: 1.5rem;
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 42ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}
.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.hero-tags span svg { width: 15px; height: 15px; color: var(--cyan-400); flex-shrink: 0; }

/* ---- Hero data-flow visual ---- */
.flow-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.flow-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}
.flow-inputs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 0.75rem;
  width: 100%;
  max-width: 360px;
}
.flow-card {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 0.9rem;
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(10px);
  animation: floatY 6s ease-in-out infinite;
}
.flow-card:nth-child(2) { animation-delay: 0.5s; }
.flow-card:nth-child(3) { animation-delay: 1s; }
.flow-card:nth-child(4) { animation-delay: 1.5s; }
.flow-card .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--gradient-brand);
  flex-shrink: 0;
  box-shadow: 0 0 10px rgba(34,211,238,0.7);
}
.flow-card span { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }

.flow-connector {
  position: relative;
  width: 2px;
  height: 44px;
  margin-inline: auto;
  background: linear-gradient(180deg, rgba(148,180,220,0.35), rgba(34,211,238,0.6));
  overflow: hidden;
}
.flow-connector::after {
  content: '';
  position: absolute;
  left: 50%; top: -8px;
  width: 6px; height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: var(--cyan-300);
  box-shadow: 0 0 8px var(--cyan-300);
  animation: flowDown 2.2s linear infinite;
}

.flow-hub-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flow-hub {
  position: relative;
  width: 92px; height: 92px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 35% 30%, rgba(34,211,238,0.25), rgba(20,135,232,0.08) 70%);
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 0 1px rgba(34,211,238,0.08), 0 0 50px -8px rgba(34,211,238,0.55);
}
.flow-hub img { width: 44px; }
.flow-hub::before {
  content: '';
  position: absolute; inset: -14px;
  border-radius: 50%;
  border: 1px dashed rgba(103,232,249,0.3);
  animation: spin 18s linear infinite;
}
.flow-hub-label {
  margin-top: 0.85rem;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cyan-300);
}

.flow-output {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.15rem;
  background: linear-gradient(135deg, rgba(20,135,232,0.14), rgba(34,211,238,0.10));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glow);
}
.flow-output .bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 30px;
}
.flow-output .bars i {
  display: block;
  width: 6px;
  border-radius: 2px;
  background: var(--gradient-brand);
}
.flow-output .bars i:nth-child(1) { height: 40%; }
.flow-output .bars i:nth-child(2) { height: 70%; }
.flow-output .bars i:nth-child(3) { height: 100%; }
.flow-output strong { display: block; font-size: 0.95rem; color: var(--text-primary); }
.flow-output small { color: var(--text-muted); font-size: 0.78rem; }

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes flowDown {
  0% { top: -8px; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (min-width: 640px) {
  .flow-visual { gap: 0; }
}

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1.is-visible { transition-delay: 0.08s; }
.reveal-delay-2.is-visible { transition-delay: 0.16s; }
.reveal-delay-3.is-visible { transition-delay: 0.24s; }
.reveal-delay-4.is-visible { transition-delay: 0.32s; }

/* ==========================================================================
   Problema
   ========================================================================== */
.problema { padding-block: 6rem; background: var(--navy-900); }
.problem-layout {
  display: grid;
  gap: 3rem;
}
@media (min-width: 1024px) {
  .problem-layout { grid-template-columns: 0.9fr 1.1fr; gap: 4rem; align-items: stretch; }
}
.scatter-panel {
  position: relative;
  min-height: 320px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 30% 30%, rgba(20,135,232,0.10), transparent 60%),
    var(--navy-850);
  overflow: hidden;
}
.scatter-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1.05rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-secondary);
  animation: floatY 7s ease-in-out infinite;
}
.scatter-node .dot { width: 10px; height: 10px; border-radius: 50%; background: #ef7f5b; box-shadow: 0 0 14px rgba(239,127,91,0.85); }
.scatter-node.n1 { top: 12%; left: 8%; }
.scatter-node.n2 { top: 22%; right: 10%; animation-delay: 1s; }
.scatter-node.n3 { top: 48%; left: 20%; animation-delay: 2s; }
.scatter-node.n4 { bottom: 26%; right: 18%; animation-delay: 0.6s; }
.scatter-node.n5 { bottom: 10%; left: 12%; animation-delay: 1.6s; }
.scatter-node.n6 { top: 60%; right: 6%; animation-delay: 2.4s; }

.problem-list { display: flex; flex-direction: column; gap: 1.5rem; }
.problem-item { display: flex; gap: 1rem; }
.problem-item .icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  background: rgba(239,127,91,0.10);
  border: 1px solid rgba(239,127,91,0.25);
  color: #ef7f5b;
}
.problem-item .icon svg { width: 21px; height: 21px; }
.problem-item h3 { font-size: 1.05rem; color: var(--text-primary); margin-bottom: 0.3rem; }
.problem-item p { font-size: 0.92rem; color: var(--text-muted); }

/* ==========================================================================
   Solução
   ========================================================================== */
.solucao { padding-block: 6rem; background: var(--navy-850); border-block: 1px solid var(--border-subtle); }
.solution-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 0;
  padding: 2.25rem 1.5rem;
  background: var(--navy-900);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}
.solution-node {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}
.solution-node .n { color: var(--cyan-300); font-size: 0.78rem; }
.solution-node:hover { border-color: var(--border-glow); color: var(--text-primary); background: rgba(34,211,238,0.06); }
.solution-node.is-decision {
  background: var(--gradient-brand);
  color: #041022;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}
.solution-node.is-decision .n { color: rgba(4,16,34,0.6); }
.solution-arrow { color: var(--cyan-400); flex-shrink: 0; display: flex; align-items: center; margin-inline: 0.15rem; opacity: 0.7; }
.solution-arrow svg { width: 18px; height: 18px; }

@media (max-width: 640px) {
  .solution-flow { flex-direction: column; align-items: stretch; }
  .solution-node { justify-content: center; }
  .solution-arrow { transform: rotate(90deg); align-self: center; }
}

/* ==========================================================================
   Serviços
   ========================================================================== */
.servicos { padding-block: 6rem; background: var(--navy-900); }
.services-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .services-grid { grid-template-columns: repeat(4, 1fr); } }

.service-card {
  position: relative;
  padding: 2rem 1.6rem;
  background: var(--navy-850);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.service-card::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(120px 120px at 20% 0%, rgba(34,211,238,0.16), transparent 70%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  position: relative;
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  background: var(--gradient-brand-soft);
  border: 1px solid var(--border-subtle);
  color: var(--cyan-300);
  margin-bottom: 1.4rem;
}
.service-icon svg { width: 25px; height: 25px; }
.service-card h3 { position: relative; font-size: 1.15rem; color: var(--text-primary); margin-bottom: 0.6rem; }
.service-card p { position: relative; font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; }

/* ==========================================================================
   Como funciona (timeline)
   ========================================================================== */
.como-funciona { padding-block: 6rem; background: var(--navy-850); border-block: 1px solid var(--border-subtle); }
.timeline { position: relative; max-width: 640px; margin-inline: auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 27px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--blue-500), var(--cyan-400));
  opacity: 0.35;
}

.timeline-item {
  position: relative;
  display: flex;
  gap: 1.5rem;
  padding-bottom: 3rem;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-num {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--navy-900);
  border: 1px solid var(--border-glow);
  color: var(--cyan-300);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  z-index: 1;
  box-shadow: 0 0 24px -4px rgba(34,211,238,0.5);
}
.timeline-body { padding-top: 0.85rem; }
.timeline-body h3 { font-size: 1.2rem; color: var(--text-primary); margin-bottom: 0.5rem; }
.timeline-body p { color: var(--text-muted); font-size: 0.95rem; max-width: 46ch; }

/* ==========================================================================
   Casos de uso
   ========================================================================== */
.casos { padding-block: 6rem; background: var(--navy-900); }
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (min-width: 640px) { .usecase-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .usecase-grid { grid-template-columns: repeat(4, 1fr); } }

.usecase-card {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 1.4rem 1.2rem;
  background: var(--navy-850);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color 0.3s ease, transform 0.3s var(--ease);
}
.usecase-card:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.usecase-card .icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: rgba(34,211,238,0.08); color: var(--cyan-300); }
.usecase-card .icon svg { width: 19px; height: 19px; }
.usecase-card span { font-size: 0.88rem; font-weight: 600; color: var(--text-secondary); line-height: 1.4; }

/* ==========================================================================
   Diferenciais / Sobre
   ========================================================================== */
.diferenciais { padding-block: 6rem; background: var(--navy-850); border-block: 1px solid var(--border-subtle); }
.dif-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .dif-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .dif-grid { grid-template-columns: repeat(4, 1fr); } }
.dif-card { padding: 1.75rem; border-radius: var(--radius-md); background: var(--navy-900); border: 1px solid var(--border-subtle); }
.dif-card .num { font-family: 'Space Grotesk', sans-serif; font-size: 0.85rem; font-weight: 700; color: var(--cyan-400); margin-bottom: 0.9rem; letter-spacing: 0.05em; }
.dif-card h3 { font-size: 1.05rem; color: var(--text-primary); margin-bottom: 0.5rem; }
.dif-card p { font-size: 0.88rem; color: var(--text-muted); }

/* ==========================================================================
   Arquitetura
   ========================================================================== */
.arquitetura { padding-block: 6.5rem; background: var(--navy-900); position: relative; overflow: hidden; }
.arquitetura::before {
  content: '';
  position: absolute;
  top: 10%; left: 50%;
  width: 900px; height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(20,135,232,0.14), transparent 65%);
  pointer-events: none;
}
.arch-diagram {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  max-width: 920px;
  margin-inline: auto;
}
.arch-layer {
  width: 100%;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
}
.arch-layer-label {
  display: block;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.arch-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; }
.arch-chip {
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.arch-layer.is-hub { text-align: center; }
.arch-layer.is-hub .arch-layer-label { margin-bottom: 0.4rem; }
.arch-layer.is-hub strong {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.15rem, 1rem + 0.7vw, 1.5rem);
  color: var(--text-primary);
}
.arch-layer.accent {
  background: var(--gradient-brand-soft);
  border-color: var(--border-glow);
  box-shadow: 0 0 50px -18px rgba(34,211,238,0.6);
}
.arch-layer.final {
  background: var(--gradient-brand);
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}
.arch-layer.final .arch-layer-label { color: rgba(4,16,34,0.65); }
.arch-layer.final strong { color: #041022; }

.arch-connector {
  position: relative;
  width: 2px;
  height: 52px;
  background: linear-gradient(180deg, rgba(148,180,220,0.3), rgba(34,211,238,0.65));
}
.arch-connector::after {
  content: '';
  position: absolute;
  left: 50%; top: -10px;
  width: 7px; height: 7px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: var(--cyan-300);
  box-shadow: 0 0 10px var(--cyan-300);
  animation: flowDown 2.4s linear infinite;
}
.arch-connector:nth-of-type(odd)::after { animation-delay: 0.6s; }

/* ==========================================================================
   CTA final
   ========================================================================== */
.cta-final {
  padding-block: 6.5rem;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--navy-850) 0%, var(--navy-900) 100%);
  border-top: 1px solid var(--border-subtle);
}
.cta-final::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(45% 60% at 15% 20%, rgba(20,135,232,0.20), transparent 60%),
    radial-gradient(45% 60% at 85% 80%, rgba(34,211,238,0.16), transparent 60%);
}
.cta-box { position: relative; max-width: 720px; margin-inline: auto; text-align: center; }
.cta-box h2 { font-size: clamp(1.8rem, 1.4rem + 2vw, 2.75rem); color: var(--text-primary); line-height: 1.15; }
.cta-box p { margin-top: 1.1rem; font-size: 1.05rem; color: var(--text-secondary); }
.cta-box .btn { margin-top: 2.25rem; }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq { padding-block: 6rem; background: var(--navy-900); }
.faq-list { max-width: 800px; margin-inline: auto; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--navy-850);
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item.is-open { border-color: var(--border-glow); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.98rem;
  text-align: left;
}
.faq-question .plus {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(34,211,238,0.08);
  color: var(--cyan-300);
  transition: transform 0.3s var(--ease), background 0.3s ease;
}
.faq-question .plus svg { width: 14px; height: 14px; }
.faq-item.is-open .plus { background: var(--gradient-brand); color: #041022; transform: rotate(45deg); }

.faq-answer {
  height: 0;
  overflow: hidden;
  transition: height 0.35s var(--ease);
}
.faq-answer-inner { padding: 0 1.5rem 1.35rem; color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--navy-950); border-top: 1px solid var(--border-subtle); padding-block: 3.5rem 2rem; }
.footer-top { display: grid; gap: 2.5rem; margin-bottom: 2.5rem; }
@media (min-width: 768px) { .footer-top { grid-template-columns: 1.3fr repeat(2, 1fr); } }
.footer-brand p { margin-top: 1rem; color: var(--text-muted); font-size: 0.9rem; max-width: 34ch; }
.footer-col h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-secondary); margin-bottom: 1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-col a { font-size: 0.9rem; color: var(--text-muted); transition: color 0.2s ease; }
.footer-col a:hover { color: var(--cyan-300); }

.footer-socials { display: flex; gap: 0.75rem; margin-top: 1.5rem; }
.footer-socials a {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  transition: all 0.25s ease;
}
.footer-socials a:hover { border-color: var(--border-glow); color: var(--cyan-300); background: rgba(34,211,238,0.06); }
.footer-socials svg { width: 17px; height: 17px; }

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p { color: var(--text-muted); font-size: 0.82rem; }

/* ==========================================================================
   Reduced motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}