:root {
  --azul: #0ea5e9; --azul-dark: #0369a1; --azul-light: #e0f2fe;
  --verde: #22c55e; --laranja: #fb923c;
  --c900: #0f172a; --c700: #334155; --c500: #64748b; --c300: #cbd5e1; --c100: #f1f5f9; --c50: #f8fafc;
  --branco: #fff;
  --raio: 12px;
  --container: 1080px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--c900); background: var(--branco);
  line-height: 1.55; font-size: 16px;
}
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
a { color: var(--azul-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: ui-monospace, SFMono-Regular, monospace;
  background: var(--azul-light); color: var(--azul-dark);
  padding: 1px 6px; border-radius: 4px; font-size: 0.9em;
}

/* HEADER */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c100);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 24px; }
.logo { font-size: 22px; font-weight: 800; color: var(--azul-dark); letter-spacing: -0.5px; }
.site-header nav a { margin-left: 20px; color: var(--c700); font-weight: 500; font-size: 14px; }

/* HERO — compacto */
.hero {
  padding: 56px 0 40px;
  background: linear-gradient(135deg, #f0f9ff 0%, #fff 100%);
  text-align: center;
}
.badge {
  display: inline-block; background: var(--verde); color: #052e16;
  padding: 4px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.5px;
  text-transform: uppercase; margin-bottom: 16px;
}
.hero h1 {
  font-size: 44px; line-height: 1.12; letter-spacing: -1px;
  margin-bottom: 14px; font-weight: 800;
}
.hero .lead {
  font-size: 18px; color: var(--c700);
  max-width: 660px; margin: 0 auto 24px;
}
.cta-row { display: flex; gap: 10px; justify-content: center; margin-bottom: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 10px;
  font-weight: 600; font-size: 15px; cursor: pointer;
  border: none; font-family: inherit; transition: all 0.15s;
}
.btn-primary { background: var(--azul); color: var(--branco); }
.btn-primary:hover { background: var(--azul-dark); text-decoration: none; }
.btn-secondary { background: var(--branco); color: var(--azul-dark); border: 1px solid var(--c300); }
.btn-secondary:hover { border-color: var(--azul); text-decoration: none; }
.hero-disclaimer { color: var(--c500); font-size: 13px; }

/* SECTIONS — compactas */
.section { padding: 56px 0; }
.section-alt { background: var(--c50); }
.section h2 {
  font-size: 28px; text-align: center;
  margin-bottom: 8px; font-weight: 800; letter-spacing: -0.5px;
}
.section-lead {
  text-align: center; color: var(--c500);
  max-width: 600px; margin: 0 auto 32px; font-size: 16px;
}

/* DEMO ANIMADA */
.demo-section { background: linear-gradient(180deg, #fff 0%, #f8fafc 100%); }
.demo-container { max-width: 760px; margin: 0 auto 32px; }
.browser-mock {
  background: var(--branco);
  border-radius: 14px;
  box-shadow: 0 8px 30px rgba(15,23,42,0.12);
  overflow: hidden;
  border: 1px solid var(--c100);
}
.browser-bar {
  display: flex; align-items: center; gap: 6px;
  background: var(--c50); padding: 10px 14px;
  border-bottom: 1px solid var(--c100);
}
.browser-bar .dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot.red { background: #ef4444; } .dot.yellow { background: #eab308; } .dot.green { background: #22c55e; }
.url-bar {
  flex: 1; margin-left: 14px; background: var(--branco);
  border: 1px solid var(--c300); border-radius: 6px;
  padding: 4px 12px; font-size: 12px; color: var(--c500);
  font-family: ui-monospace, monospace;
}
.browser-body { padding: 20px 22px 22px; }
.field-label {
  display: block; font-size: 13px; color: var(--c500); font-weight: 600;
  margin-bottom: 6px;
}
.text-input {
  border: 1px solid var(--c300); border-radius: 8px;
  padding: 12px 14px; min-height: 90px;
  font-family: ui-monospace, monospace;
  background: var(--branco);
  position: relative;
}
.typing-trigger {
  display: inline-block;
  color: var(--azul-dark);
  font-size: 14px;
  animation: trigger-fade 6s infinite;
}
.cursor { animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0; } }
@keyframes trigger-fade {
  0%, 30% { opacity: 1; }
  35%, 100% { opacity: 0; height: 0; }
}
.text-expanded {
  font-family: inherit; font-size: 13.5px; color: var(--c700);
  opacity: 0; animation: expand-in 6s infinite;
  line-height: 1.5;
}
@keyframes expand-in {
  0%, 30% { opacity: 0; transform: translateY(-6px); }
  40%, 100% { opacity: 1; transform: translateY(0); }
}
.text-expanded p { margin: 0; }
.demo-caption {
  text-align: center; color: var(--c500);
  font-size: 13px; margin-top: 14px;
}

/* MÉTRICAS */
.metrics-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px; margin-top: 32px;
}
.metric {
  text-align: center; padding: 20px;
  background: var(--branco); border-radius: var(--raio);
  border: 1px solid var(--c100);
}
.metric-number {
  font-size: 36px; font-weight: 800; color: var(--azul-dark);
  letter-spacing: -1px; line-height: 1;
}
.metric-label { font-size: 13px; color: var(--c700); margin-top: 8px; line-height: 1.4; }

/* STEPS */
.steps-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 24px; }
.step-card {
  background: var(--branco); border-radius: var(--raio);
  padding: 20px; border: 1px solid var(--c100);
  display: flex; gap: 14px; align-items: flex-start;
}
.step-icon { flex-shrink: 0; }
.step-icon svg { width: 52px; height: 52px; }
.step-card h3 {
  font-size: 16px; margin-bottom: 4px;
  display: flex; align-items: center; gap: 8px;
}
.step-num {
  background: var(--azul); color: var(--branco);
  font-size: 11px; font-weight: 700;
  padding: 2px 9px; border-radius: 999px;
}
.step-card p { color: var(--c700); font-size: 13.5px; line-height: 1.45; }

/* BIZUS GRID */
.bizus-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.bizu-card {
  background: var(--branco); border-radius: var(--raio);
  padding: 18px; border: 1px solid var(--c100);
}
.bizu-card h3 { font-size: 15px; color: var(--azul-dark); margin-bottom: 8px; }
.bizu-card ul { list-style: none; }
.bizu-card li {
  font-size: 13px; color: var(--c700);
  padding: 3px 0; line-height: 1.4;
}

/* PRIVACY */
.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 12px; }
.privacy-card { text-align: center; padding: 18px; }
.privacy-icon svg { width: 64px; height: 64px; margin: 0 auto 8px; }
.privacy-card h3 { font-size: 15px; margin-bottom: 6px; color: var(--c900); }
.privacy-card p { color: var(--c700); font-size: 13.5px; line-height: 1.45; }
.legal-links { text-align: center; margin-top: 24px; color: var(--c500); font-size: 14px; }

/* CTA / SIGNUP */
.section-cta { background: linear-gradient(135deg, var(--azul) 0%, var(--azul-dark) 100%); color: var(--branco); }
.section-cta h2 { color: var(--branco); }
.section-cta .section-lead { color: rgba(255,255,255,0.85); }
.signup-form { max-width: 480px; margin: 0 auto; display: grid; gap: 10px; }
.signup-form input {
  border: 0; border-radius: 10px; padding: 13px 15px;
  font-size: 15px; font-family: inherit;
}
.signup-form input:focus { outline: 3px solid rgba(255,255,255,0.6); }
.signup-form button { width: 100%; }
.signup-form .btn-primary { background: var(--branco); color: var(--azul-dark); }
.signup-form .btn-primary:hover { background: var(--c100); }
.signup-message { text-align: center; margin-top: 12px; min-height: 22px; color: var(--branco); font-weight: 600; }
.legal-mini { text-align: center; margin-top: 12px; font-size: 12.5px; color: rgba(255,255,255,0.75); }
.legal-mini a { color: var(--branco); text-decoration: underline; }

/* FAQ */
.faq-container { max-width: 740px; }
details {
  background: var(--branco); border: 1px solid var(--c100);
  border-radius: 10px; margin-bottom: 10px; padding: 0; overflow: hidden;
}
summary {
  padding: 14px 18px; font-weight: 600; cursor: pointer;
  font-size: 15px; color: var(--c900); list-style: none;
  position: relative;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; position: absolute; right: 18px; top: 50%;
  transform: translateY(-50%); color: var(--azul);
  font-size: 20px; font-weight: 400; transition: transform 0.15s;
}
details[open] summary::after { content: "−"; }
details p { padding: 0 18px 14px; color: var(--c700); font-size: 14px; line-height: 1.5; }

/* FOOTER */
.site-footer { background: var(--c900); color: var(--c300); padding: 40px 0 24px; font-size: 14px; }
.footer-inner { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; align-items: start; }
.footer-brand { font-size: 19px; font-weight: 800; color: var(--branco); margin-bottom: 4px; }
.footer-tagline { color: var(--c300); }
.footer-links { display: flex; flex-direction: column; gap: 6px; }
.footer-links a { color: var(--c300); }
.footer-links a:hover { color: var(--branco); }
.footer-legal p { margin-bottom: 4px; color: var(--c300); }
.footer-legal .tiny { font-size: 12px; color: var(--c500); }

/* LEGAL PAGES */
.legal-page { max-width: 740px; margin: 48px auto; padding: 0 24px; }
.legal-page h1 { font-size: 28px; margin-bottom: 6px; letter-spacing: -0.5px; }
.legal-page .updated { color: var(--c500); font-size: 14px; margin-bottom: 24px; }
.legal-page h2 { font-size: 20px; margin: 24px 0 10px; color: var(--c900); }
.legal-page p, .legal-page li { color: var(--c700); margin-bottom: 10px; font-size: 14.5px; }
.legal-page ul { padding-left: 22px; }
.legal-page a { color: var(--azul-dark); text-decoration: underline; }

/* RESPONSIVO */
@media (max-width: 720px) {
  .hero { padding: 40px 0 28px; }
  .hero h1 { font-size: 28px; }
  .hero .lead { font-size: 15.5px; }
  .section { padding: 40px 0; }
  .section h2 { font-size: 22px; }
  .steps-grid, .bizus-grid, .privacy-grid, .metrics-grid, .footer-inner { grid-template-columns: 1fr; }
  .site-header nav { display: none; }
  .metric-number { font-size: 30px; }
  .text-expanded { font-size: 12px; }
}