/* ================================================
   VARIÁVEIS E BASE
   ================================================ */
:root {
  --red:      #e11d2e;
  --red-dark: #b31624;
  --white:    #ffffff;
  --text:     #F0F0F0;
  --muted:    #a0a0a0;
  --black:    #080808;
  --surface:  #2a2a2a;
  --surface2: #1e1e1e;
  --border:   rgba(255, 255, 255, 0.1);
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --form-bg:           var(--surface);
  --form-text:         var(--text);
  --form-placeholder:  #837f7f;
  --form-border:       var(--border);
  --form-border-focus: var(--red);
  --form-label:        var(--muted);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--black);
  color: var(--text);
  overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
a { text-decoration: none; color: inherit; }

.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; top: -100%; left: 0; padding: 8px 16px; background: var(--red); color: #fff; z-index: 9999; font-size: 14px; font-weight: 700; border-radius: 0 0 4px 0; }
.skip-link:focus { top: 0; }

/* ================================================
   BOTÕES
   ================================================ */
.btn-primary {
  background: var(--red);
  color: var(--white);
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: 0.02em;
  transition: background 0.2s, transform 0.2s;
  display: inline-block;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--red);
  color: var(--white);
  padding: 11px 23px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  font-family: Arial, Helvetica, sans-serif;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  display: inline-block;
}
.btn-outline:hover {
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-2px);
}

/* ================================================
   HEADER E NAV
   ================================================ */
header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: background 0.4s, padding 0.4s;
}
header.scrolled {
  background: rgba(8,8,8,0.96);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}
header.scrolled .nav-logo img { height: 38px; }
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}
.nav-logo { display: block; }
.nav-logo img { height: 44px; width: auto; display: block; transition: height 0.4s; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 14px; font-weight: 600; color: var(--white); transition: opacity 0.2s; }
.nav-links a:hover { opacity: 0.7; }
.nav-links a.ativo { color: var(--red); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; display: block; transition: 0.3s; }

/* ================================================
   PAGE HEADER (produtos e clientes)
   ================================================ */
.page-header { text-align: center; padding-top: 140px; padding-bottom: 40px; }
.page-header h1 { font-size: 2.5rem; margin-bottom: 20px; line-height: 1.2; }
.page-header p { font-size: 1.1rem; color: var(--muted); max-width: 800px; margin: 0 auto; line-height: 1.6; }

/* ================================================
   SECTION LABEL
   ================================================ */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}

/* ================================================
   CTA ACTIONS
   ================================================ */
.cta-actions { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }

/* ================================================
   FOOTER
   ================================================ */
footer { background: var(--surface); border-top: 1px solid var(--border); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid var(--border); margin-bottom: 32px; }
.footer-brand img { height: 44px; width: auto; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 13px; color: var(--muted); line-height: 1.7; margin-top: 12px; max-width: 260px; }
.footer-brand p + p { margin-top: 8px; font-size: 12px; }
.footer-col h3 { font-size: 12px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.footer-col a,
.footer-col span { display: block; font-size: 14px; color: var(--text); margin-bottom: 10px; transition: color 0.2s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--muted); flex-wrap: wrap; gap: 12px; }
.social-links { display: flex; gap: 12px; }
.social-link { width: 36px; height: 36px; background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--muted); transition: color 0.2s, border-color 0.2s; }
.social-link:hover { color: var(--white); border-color: rgba(255,255,255,0.3); }

/* ================================================
   WHATSAPP FLUTUANTE
   ================================================ */
.whatsapp-flutuante {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 56px; height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  z-index: 999;
  transition: transform 0.2s;
  animation: whatsapp-blink 0.7s ease-in-out 0.8s 3;
}
.whatsapp-flutuante:hover { transform: scale(1.1); }
@keyframes whatsapp-blink {
  0%, 100% {
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    filter: brightness(1);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(225,29,46,0.22), 0 4px 24px rgba(37,211,102,0.75);
    filter: brightness(1.35);
  }
}

/* ================================================
   RESPONSIVO
   ================================================ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0;
    width: 100%;
    background: rgba(8,8,8,0.98);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    z-index: 100;
  }
  .nav-links.open .btn-primary { width: 100%; text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .page-header h1 { font-size: 2rem; }
  .page-header { padding-top: 100px; padding-bottom: 28px; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
  .page-header { padding-top: 90px; padding-bottom: 16px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn-primary,
  .cta-actions .btn-outline { text-align: center; }
}