:root {
  --navy: #0B1836;
  --navy-2: #101F44;
  --blue: #2447F5;
  --blue-soft: rgba(36, 71, 245, 0.12);
  --paper: #F4F6FB;
  --ink: #0B1836;
  --ink-soft: rgba(11, 24, 54, 0.68);
  --line: rgba(11, 24, 54, 0.12);
  --white: #FFFFFF;
  --mono: "Courier New", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

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

.mono-tag {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
}

.section-label {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 246, 251, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.logo-mark {
  height: 26px;
  width: auto;
  display: block;
}
.logo-mark.small { height: 18px; opacity: 0.9; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--ink-soft);
}

.main-nav a:hover { color: var(--ink); }

.nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--blue); }

/* Hero */
.hero {
  position: relative;
  background: radial-gradient(ellipse 900px 500px at 20% -10%, rgba(36,71,245,0.35), transparent 60%), var(--navy);
  color: var(--white);
  padding: 130px 0 90px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
  pointer-events: none;
}

.hero .wrap { position: relative; z-index: 1; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.65);
  margin-bottom: 28px;
  padding: 7px 14px 7px 12px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 100px;
  background: rgba(255,255,255,0.04);
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4E7BFF;
  box-shadow: 0 0 10px 2px rgba(78,123,255,0.7);
  flex-shrink: 0;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 60px);
  max-width: 900px;
  color: var(--white);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 19px;
  color: rgba(255,255,255,0.72);
  max-width: 640px;
  margin-bottom: 44px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 72px; }

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
}
.btn-primary:hover { background: #4863ff; transform: translateY(-1px); }

.btn-ghost {
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.6); }

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.12);
}

.hero-stat { display: flex; flex-direction: column; gap: 6px; }

.stat-num {
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 700;
  color: var(--white);
}

.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}

/* Sections generic */
section { padding: 100px 0; }

h2 {
  font-size: clamp(28px, 3.2vw, 40px);
  margin-bottom: 20px;
}

/* Problema */
.problema { background: var(--paper); }

.problema-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
}

.problema-text p {
  color: var(--ink-soft);
  font-size: 17px;
  margin-bottom: 16px;
  max-width: 480px;
}

.problema-highlight {
  color: var(--ink) !important;
  font-weight: 600;
  font-size: 18px !important;
}

.problema-list { display: flex; flex-direction: column; gap: 28px; }

.problema-item {
  display: flex;
  gap: 16px;
  align-items: baseline;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.problema-item p { font-size: 15.5px; color: var(--ink-soft); }

/* Frentes */
.frentes { background: var(--white); }

.frentes h2 { max-width: 560px; }

.frentes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 48px;
  border-radius: 10px;
  overflow: hidden;
}

.frente-card {
  background: var(--white);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.15s;
}

.frente-card:hover { background: var(--paper); }

.frente-card h3 { font-size: 18px; }
.frente-card p { color: var(--ink-soft); font-size: 14.5px; }

/* Como funciona */
.como-funciona { background: var(--navy); color: var(--white); position: relative; overflow: hidden; }
.como-funciona::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 700px 400px at 90% 10%, rgba(36,71,245,0.25), transparent 60%);
  pointer-events: none;
}
.como-funciona .wrap { position: relative; z-index: 1; }
.como-funciona h2 { color: var(--white); }

.passos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.passo { border-top: 1px solid rgba(255,255,255,0.15); padding-top: 20px; }

.passo-num {
  display: block;
  font-family: var(--mono);
  color: #6E8CFF;
  font-size: 14px;
  margin-bottom: 12px;
}

.passo p { color: rgba(255,255,255,0.8); font-size: 16px; }

/* Stack */
.stack { background: var(--paper); }

.stack-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 40px;
}

.stack-text { display: flex; flex-direction: column; gap: 16px; max-width: 720px; }
.stack-text p { color: var(--ink-soft); font-size: 17px; }

.diagram {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 56px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.diagram-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 13px;
}

.diagram-node {
  border: 1px solid var(--line);
  padding: 16px 20px;
  border-radius: 8px;
  background: var(--paper);
  text-align: center;
}

.diagram-node-highlight {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
  font-weight: 700;
}

.diagram-arrow { color: var(--ink-soft); font-size: 16px; }

/* Contato */
.contato {
  background: var(--navy);
  color: var(--white);
  text-align: left;
  position: relative;
  overflow: hidden;
}
.contato::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 800px 450px at 10% 100%, rgba(36,71,245,0.3), transparent 60%);
  pointer-events: none;
}
.contato .wrap { position: relative; z-index: 1; }

.contato h2 { color: var(--white); max-width: 620px; margin-bottom: 16px; }

.contato-sub { color: rgba(255,255,255,0.65); font-size: 16px; }

.contato-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.contato-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  padding: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.contato-form label,
.form-full {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  font-family: var(--mono);
  letter-spacing: 0.03em;
}

.contato-form input,
.contato-form textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--white);
  font-family: var(--sans);
  font-size: 15px;
  resize: vertical;
}

.contato-form input:focus,
.contato-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: rgba(255,255,255,0.09);
}

.contato-form button {
  align-self: flex-start;
  border: none;
  cursor: pointer;
  margin-top: 4px;
}

@media (max-width: 860px) {
  .contato-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
}

/* Footer */
.site-footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.6);
  font-size: 13px;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 28px 24px;
}

/* Responsive */
@media (max-width: 980px) {
  .frentes-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .problema-grid { grid-template-columns: 1fr; gap: 40px; }
  .frentes-grid { grid-template-columns: 1fr; }
  .passos { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 32px; }
  section { padding: 64px 0; }
  .hero { padding: 96px 0 64px; }
}