/* =====================================================================
   LB Desenvolvimento de Softwares — Folha de estilo principal
   Design: preto elegante, clean e tecnológico
   ===================================================================== */

/* ---------- Tokens de design ---------- */
:root {
  --bg:          #060608;
  --bg-elev:     #0d0d11;
  --bg-card:     #101015;
  --line:        rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);

  --txt:         #f3f4f6;
  --txt-soft:    #a1a1ac;
  --txt-mute:    #6b6b76;

  --accent:      #4fd1c5;   /* teal tecnológico */
  --accent-2:    #7c9dff;   /* azul */
  --accent-glow: rgba(79, 209, 197, 0.35);

  --grad: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);

  --radius:   14px;
  --radius-s: 10px;
  --maxw:     1180px;

  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.8);

  --font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--txt);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Fundo com grade tecnológica sutil + brilho */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 500px at 78% -8%, rgba(124, 157, 255, 0.10), transparent 60%),
    radial-gradient(760px 500px at 8% 4%, rgba(79, 209, 197, 0.10), transparent 55%);
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 72%);
  opacity: 0.5;
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
img, svg, video { max-width: 100%; }
img { display: block; }
pre { max-width: 100%; }
ul { list-style: none; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

section { position: relative; }

.section-pad { padding-block: 96px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
  opacity: 0.7;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; font-weight: 700; }

.title-xl { font-size: clamp(2.3rem, 5.4vw, 3.9rem); }
.title-lg { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
.title-md { font-size: clamp(1.3rem, 2.2vw, 1.6rem); }

.lead { color: var(--txt-soft); font-size: 1.08rem; max-width: 60ch; }

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

/* ---------- Cabeçalho / Navegação ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(6, 6, 8, 0.72);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand .logo-mark {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, #17171f 0%, #0a0a0e 100%);
  box-shadow: 0 0 22px -6px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
}
/* brilho diagonal sutil */
.brand .logo-mark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(79, 209, 197, 0.18), transparent 48%);
}
/* anel em gradiente ao redor do tile */
.brand .logo-mark::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
/* monograma "LB" em gradiente */
.brand .logo-mark .mono {
  position: relative;
  z-index: 1;
  font-weight: 800;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand .brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand .brand-text b { font-size: 0.98rem; color: var(--txt); }
.brand .brand-text span { font-size: 0.68rem; color: var(--txt); letter-spacing: 0.08em; text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-size: 0.92rem;
  color: var(--txt-soft);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--txt); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--grad);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--txt);
  width: 42px; height: 42px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.2rem;
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 24px;
  border-radius: 11px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.2s ease, background 0.2s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--grad);
  color: #04121a;
  box-shadow: 0 10px 30px -10px var(--accent-glow);
}
.btn-primary:hover { box-shadow: 0 14px 40px -8px var(--accent-glow); transform: translateY(-2px); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line-strong);
  color: var(--txt);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
/* Botão do WhatsApp — verde intuitivo */
.btn-whatsapp {
  background: #25d366;
  color: #052c18;
  box-shadow: 0 10px 30px -10px rgba(37, 211, 102, 0.5);
}
.btn-whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -8px rgba(37, 211, 102, 0.55);
}
.btn-whatsapp svg { width: 19px; height: 19px; }
.btn .arrow { transition: transform 0.2s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero { padding-block: 110px 80px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
/* impede que conteúdo largo (ex.: janela de código) estique a coluna e corte o texto */
.hero-grid > *, .split > * { min-width: 0; }
.hero h1 { margin-bottom: 22px; }
.hero .lead { margin-bottom: 34px; font-size: 1.15rem; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 34px;
  margin-top: 46px;
  flex-wrap: wrap;
}
.hero-stats .stat b { font-size: 1.7rem; display: block; }
.hero-stats .stat span { font-size: 0.82rem; color: var(--txt-mute); }

/* Cartão visual do hero (code window) */
.code-window {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  max-width: 100%;
}
.code-window .cw-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.cw-bar .dot { width: 11px; height: 11px; border-radius: 50%; }
.dot.r { background: #ff5f57; } .dot.y { background: #febc2e; } .dot.g { background: #28c840; }
.cw-bar .cw-title { margin-left: 10px; font-size: 0.78rem; color: var(--txt-mute); }
.code-window pre {
  margin: 0;
  padding: 22px;
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.75;
  color: #c9d1d9;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tk-key { color: #7c9dff; }
.tk-str { color: #4fd1c5; }
.tk-fn  { color: #f0a45f; }
.tk-cm  { color: #5a6270; font-style: italic; }
.tk-num { color: #d19a66; }

/* ---------- Grid de serviços ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s, box-shadow 0.25s;
  cursor: pointer;
}
.service-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.service-card:hover::after { opacity: 1; }
.service-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  background: rgba(79, 209, 197, 0.10);
  border: 1px solid rgba(79, 209, 197, 0.25);
  color: var(--accent);
}
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 { margin-bottom: 10px; font-size: 1.25rem; }
.service-card p { color: var(--txt-soft); font-size: 0.96rem; margin-bottom: 22px; flex-grow: 1; }
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 11px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
/* deixa o card inteiro clicável, mantendo um único link semântico */
.service-link::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
}
.service-card:hover .service-link {
  border-color: var(--accent);
  background: rgba(79, 209, 197, 0.12);
}
.service-link .arrow { transition: transform 0.2s; }
.service-card:hover .service-link .arrow { transform: translateX(5px); }
.service-num {
  position: absolute;
  top: 24px; right: 26px;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  color: var(--txt-mute);
}

/* ---------- Seção genérica de feature/split ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.feature-list { display: grid; gap: 16px; margin-top: 26px; }
.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.feature-item .check {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 8px;
  display: grid; place-items: center;
  background: rgba(79, 209, 197, 0.10);
  color: var(--accent);
  margin-top: 2px;
}
.feature-item b { display: block; font-size: 1rem; }
.feature-item span { color: var(--txt-soft); font-size: 0.94rem; }

/* Painel decorativo */
.panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 30px;
  box-shadow: var(--shadow);
}

/* ---------- Página de serviço ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.86rem;
  color: var(--txt-mute);
  margin-bottom: 26px;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: 0.5; }

.service-hero { padding-block: 70px 40px; }
.service-hero .service-icon { width: 60px; height: 60px; margin-bottom: 26px; }
.service-hero .service-icon svg { width: 30px; height: 30px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.chip {
  font-size: 0.82rem;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--txt-soft);
  background: rgba(255, 255, 255, 0.02);
}

/* Cards de etapas / entregáveis */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.mini-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color 0.2s, transform 0.2s;
}
.mini-card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.mini-card .step-num {
  font-family: ui-monospace, monospace;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.mini-card h4 { font-size: 1.08rem; margin-bottom: 8px; transition: color 0.22s ease; }
.mini-card p { color: var(--txt-soft); font-size: 0.92rem; }

/* Cartões de tecnologia: cor de destaque própria no hover */
.tech-card .step-num { transition: color 0.22s ease; }
.tech-card:hover {
  border-color: var(--tech, var(--accent));
  box-shadow: 0 14px 34px -20px var(--tech, var(--accent));
}
.tech-card:hover .step-num,
.tech-card:hover h4 { color: var(--tech, var(--accent)); }

/* ---------- CTA / Contato ---------- */
.cta-band {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 56px 48px;
  background:
    radial-gradient(600px 300px at 100% 0%, rgba(124, 157, 255, 0.12), transparent 60%),
    radial-gradient(500px 300px at 0% 100%, rgba(79, 209, 197, 0.12), transparent 60%),
    var(--bg-elev);
  text-align: center;
  overflow: hidden;
}
.cta-band h2 { margin-bottom: 14px; }
.cta-band p { color: var(--txt-soft); margin: 0 auto 30px; max-width: 52ch; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Formulário / opções de contato */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-methods { display: grid; gap: 16px; }
.contact-method {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: border-color 0.2s, transform 0.2s;
}
.contact-method:hover { border-color: var(--accent); transform: translateX(4px); }
/* campo de contato do WhatsApp — verde sutil e intuitivo */
.contact-method.wa {
  background: linear-gradient(180deg, rgba(37, 211, 102, 0.07), rgba(37, 211, 102, 0.03));
  border-color: rgba(37, 211, 102, 0.22);
}
.contact-method.wa:hover { border-color: #25d366; }
.contact-method .cm-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: rgba(79, 209, 197, 0.10);
  color: var(--accent);
  flex-shrink: 0;
}
/* WhatsApp — clean: logo verde sobre fundo branco */
.contact-method .cm-icon.wa {
  background: #ffffff;
  color: #25d366;
  box-shadow: 0 3px 12px -3px rgba(37, 211, 102, 0.45);
}
.contact-method .cm-icon.wa svg { width: 27px; height: 27px; }
/* card do WhatsApp com leve acento verde */
.contact-method.wa {
  background: linear-gradient(180deg, rgba(37, 211, 102, 0.07), var(--bg-card));
}
.contact-method.wa:hover {
  border-color: #25d366;
  box-shadow: 0 10px 30px -14px rgba(37, 211, 102, 0.5);
}
.contact-method b { display: block; font-size: 0.98rem; }
.contact-method span { color: var(--txt-soft); font-size: 0.9rem; }

form.contact-form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 0.85rem; color: var(--txt-soft); font-weight: 500; }
.field input, .field textarea, .field select {
  width: 100%;
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 13px 15px;
  color: var(--txt);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 209, 197, 0.15);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.82rem; color: var(--txt-mute); }

/* ---------- Rodapé ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 54px 34px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
  gap: 40px;
  margin-bottom: 40px;
}
/* marca do rodapé: logo na frente do nome (igual ao cabeçalho) */
.footer-col .brand { display: inline-flex; padding: 0; }
.footer-grid p { color: var(--txt-soft); font-size: 0.94rem; margin-top: 16px; max-width: 34ch; }
.footer-col h5 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--txt-mute);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--txt-soft);
  font-size: 0.94rem;
  padding: 5px 0;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }
/* Redes sociais no rodapé — ícones com a cor de cada marca */
.social { display: flex; gap: 12px; margin-top: 16px; }
.footer-col .social-link {
  display: inline-flex;
  align-items: center;
  padding: 0;
}
.social-ico {
  width: 32px; height: 32px;
  border-radius: 9px;
  display: grid; place-items: center;
  flex-shrink: 0;
  color: #fff;
  transition: transform 0.2s ease, filter 0.2s ease;
}
.social-ico svg { width: 26px; height: 26px; }               /* Instagram (contorno) */
.social-ico.li svg, .social-ico.gh svg { width: 19px; height: 19px; } /* glifos preenchidos */
.social-ico.ig {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  box-shadow: 0 4px 14px -6px rgba(220, 39, 67, 0.55);
}
.social-ico.li { background: #0a66c2; box-shadow: 0 4px 14px -6px rgba(10, 102, 194, 0.6); }
.social-ico.gh {
  background: #24292f;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 4px 14px -6px rgba(0, 0, 0, 0.6);
}
.footer-col .social-link:hover .social-ico { transform: translateY(-3px); filter: brightness(1.1); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  color: var(--txt-mute);
  font-size: 0.86rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Animações de entrada ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
  .hero-grid, .split, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .services-grid, .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .nav-links {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 20px;
    transform: translateY(-140%);
    transition: transform 0.3s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-links a.active::after { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .section-pad { padding-block: 68px; }
  .cta-band { padding: 40px 24px; }
  .hero { padding-block: 64px 56px; }
}

/* ---------- Ajustes finos para celular ---------- */
@media (max-width: 560px) {
  .container { padding-inline: 18px; }
  .hero { padding-block: 44px 44px; }
  .hero .lead { font-size: 1.05rem; margin-bottom: 28px; }
  .hero-actions { gap: 10px; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  /* estatísticas: 3 colunas compactas que não cortam */
  .hero-stats {
    gap: 16px 20px;
    margin-top: 34px;
  }
  .hero-stats .stat { flex: 1 1 90px; }
  .hero-stats .stat b { font-size: 1.35rem; }
  .section-pad { padding-block: 52px; }
  .title-xl { font-size: clamp(2rem, 8.5vw, 2.6rem); }
  .title-lg { font-size: clamp(1.6rem, 6.6vw, 2rem); }
  /* janela de código legível e com rolagem contida */
  .code-window pre { padding: 18px; font-size: 0.78rem; }
  .service-card, .mini-card { padding: 24px; }
  .service-hero { padding-block: 44px 32px; }
  .cta-band { padding: 34px 20px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}