/* ==========================================================
   DuoTech — site institucional
   Cores e fontes do kit de marca
   ========================================================== */
:root {
  --verde: #20D99B;
  --verde-escuro: #087F67;
  --preto: #050A0A;
  --preto-2: #0B1413;
  --card: #0F1B1A;
  --borda: rgba(32, 217, 155, 0.14);
  --branco: #FFFFFF;
  --cinza: #A7B0B0;
  --degrade: linear-gradient(135deg, #20D99B 0%, #087F67 100%);
  --raio: 16px;
  --sombra-verde: 0 0 40px rgba(32, 217, 155, 0.18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--preto);
  color: var(--branco);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: 'Montserrat', sans-serif; line-height: 1.15; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 24px; border-radius: 12px; font-weight: 600; font-size: 0.98rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s;
  font-family: inherit;
}
.btn:hover { transform: translateY(-2px); }
.btn-verde { background: var(--degrade); color: var(--preto); }
.btn-verde:hover { box-shadow: var(--sombra-verde); }
.btn-contorno { border-color: rgba(255,255,255,.2); color: var(--branco); }
.btn-contorno:hover { border-color: var(--verde); color: var(--verde); }
.btn-bloco { width: 100%; }

/* ---------- Topo ---------- */
.topo {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.topo.rolou { background: rgba(5,10,10,.88); backdrop-filter: blur(12px); border-color: var(--borda); }
.topo-inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.marca { display: flex; align-items: center; gap: 10px; }
.marca-img { height: 38px; width: auto; }
.marca-texto { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.35rem; letter-spacing: -.5px; }
.marca-texto b { color: var(--verde); }
.menu { display: flex; gap: 28px; margin-left: auto; }
.menu a { color: var(--cinza); font-weight: 500; font-size: .95rem; transition: color .2s; }
.menu a:hover { color: var(--verde); }
.btn-topo { padding: 10px 18px; font-size: .9rem; }
.menu-toggle { display: none; background: none; border: 0; color: var(--branco); font-size: 1.4rem; cursor: pointer; margin-left: auto; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 140px 0 90px; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; width: 620px; height: 620px; right: -160px; top: -120px;
  background: radial-gradient(circle, rgba(32,217,155,.18), transparent 65%); pointer-events: none;
}
.grid-fundo {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(32,217,155,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(32,217,155,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 70%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.selo {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--borda); background: rgba(32,217,155,.06); color: var(--verde);
  font-size: .82rem; font-weight: 600; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; letter-spacing: -1px; }
.destaque { background: var(--degrade); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { color: var(--cinza); font-size: 1.1rem; margin: 20px 0 32px; max-width: 540px; }
.hero-botoes { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-provas { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; color: var(--cinza); font-size: .9rem; }
.hero-provas i { color: var(--verde); margin-right: 6px; }

/* mock do painel */
.hero-visual { position: relative; min-height: 420px; }
.painel {
  background: var(--card); border: 1px solid var(--borda); border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0,0,0,.5), var(--sombra-verde); overflow: hidden;
  transform: perspective(1200px) rotateY(-6deg) rotateX(3deg);
}
.painel-barra { display: flex; gap: 6px; padding: 14px 16px; border-bottom: 1px solid var(--borda); }
.painel-barra span { width: 10px; height: 10px; border-radius: 50%; background: #1f2b2a; }
.painel-barra span:first-child { background: var(--verde); }
.painel-corpo { padding: 20px; }
.painel-titulo { font-family: 'Montserrat', sans-serif; font-weight: 700; margin-bottom: 14px; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.kpi { background: var(--preto-2); border: 1px solid var(--borda); border-radius: 12px; padding: 12px; }
.kpi small { display: block; color: var(--cinza); font-size: .72rem; }
.kpi strong { display: block; font-weight: 600; font-size: 1.05rem; margin: 2px 0; }
.kpi em { font-style: normal; font-size: .72rem; color: var(--verde); }
.barras { display: flex; align-items: flex-end; gap: 10px; height: 110px; margin: 18px 0; padding: 0 4px; }
.barras i { flex: 1; height: var(--h); background: var(--degrade); border-radius: 6px 6px 2px 2px; opacity: .85; animation: sobe 1s ease-out both; }
.barras i:nth-child(odd) { opacity: .55; }
@keyframes sobe { from { height: 0; } }
.linhas div {
  display: flex; align-items: center; gap: 10px; padding: 10px 0; font-size: .82rem; color: var(--cinza);
  border-top: 1px solid rgba(255,255,255,.05);
}
.linhas b { margin-left: auto; color: var(--verde); font-weight: 600; font-size: .75rem; }
.ponto { width: 8px; height: 8px; border-radius: 50%; background: var(--verde); box-shadow: 0 0 10px var(--verde); flex-shrink: 0; }

.celular {
  position: absolute; right: -10px; bottom: -40px; width: 150px; height: 290px; border-radius: 28px;
  background: #0a0f0f; border: 2px solid #1c2a28; padding: 10px; box-shadow: 0 20px 50px rgba(0,0,0,.6);
  animation: flutua 5s ease-in-out infinite;
}
.celular-tela { height: 100%; border-radius: 20px; background: var(--card); padding: 14px 12px; display: flex; flex-direction: column; gap: 10px; }
.cel-topo {
  width: 42px; height: 42px; border-radius: 12px; background: var(--degrade); color: var(--preto);
  font-family: 'Montserrat', sans-serif; font-weight: 800; display: grid; place-items: center; margin-bottom: 6px;
}
.cel-item { height: 34px; border-radius: 10px; background: var(--preto-2); border: 1px solid var(--borda); }
.cel-item.curto { width: 70%; }
.cel-botao { margin-top: auto; background: var(--degrade); color: var(--preto); text-align: center; border-radius: 10px; padding: 8px; font-size: .75rem; font-weight: 700; }
@keyframes flutua { 50% { transform: translateY(-12px); } }

/* ---------- Seções ---------- */
.secao { padding: 96px 0; }
.secao-escura { background: var(--preto-2); border-top: 1px solid var(--borda); border-bottom: 1px solid var(--borda); }
.secao-cabecalho { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.sobretitulo { display: inline-block; color: var(--verde); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.secao h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 800; letter-spacing: -.5px; }
.secao-cabecalho p { color: var(--cinza); margin-top: 14px; font-size: 1.05rem; }

/* Soluções */
.solucoes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.solucao {
  background: var(--card); border: 1px solid var(--borda); border-radius: var(--raio); padding: 28px;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.solucao:hover { transform: translateY(-4px); border-color: rgba(32,217,155,.4); box-shadow: var(--sombra-verde); }
.solucao i { font-size: 1.4rem; color: var(--verde); width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; background: rgba(32,217,155,.08); border: 1px solid var(--borda); }
.solucao h3 { font-size: 1.15rem; margin: 18px 0 8px; }
.solucao p { color: var(--cinza); font-size: .95rem; }

/* Sistemas */
.filtros { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin: -20px 0 36px; }
.filtro {
  background: transparent; color: var(--cinza); border: 1px solid rgba(255,255,255,.12); border-radius: 999px;
  padding: 9px 18px; font: 500 .9rem 'Inter', sans-serif; cursor: pointer; transition: all .2s;
}
.filtro:hover { color: var(--branco); }
.filtro.ativo { background: var(--verde); color: var(--preto); border-color: var(--verde); font-weight: 600; }
.sistemas-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.sistema {
  position: relative; display: flex; flex-direction: column; background: var(--card);
  border: 1px solid var(--borda); border-radius: 20px; overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.sistema:hover { transform: translateY(-6px); border-color: rgba(32,217,155,.45); box-shadow: var(--sombra-verde); }
.sistema.escondido { display: none; }
.sistema-topo { padding: 16px 26px 0; display: flex; align-items: flex-start; gap: 14px; }
.sistema-icone {
  width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center; flex-shrink: 0;
  background: var(--degrade); color: var(--preto); font-size: 1.35rem;
}
.sistema-nome small { display: block; color: var(--verde); font-size: .74rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1.2px; }
.sistema-nome h3 { font-size: 1.2rem; margin-top: 3px; }
.sistema-tag {
  align-self: flex-start; margin: 22px 26px 0; font-size: .7rem; font-weight: 600; padding: 4px 10px; border-radius: 999px;
  background: rgba(32,217,155,.1); color: var(--verde); border: 1px solid var(--borda);
}
.sistema-desc { color: var(--cinza); font-size: .95rem; padding: 16px 26px 0; }
.sistema-recursos { list-style: none; padding: 16px 26px; display: grid; gap: 8px; flex: 1; }
.sistema-recursos li { font-size: .9rem; display: flex; gap: 10px; align-items: baseline; }
.sistema-recursos i { color: var(--verde); font-size: .8rem; }
.sistema-acoes { display: flex; flex-wrap: wrap; gap: 10px; padding: 0 26px 26px; }
.sistema-acoes .btn { flex: 1; padding: 12px 14px; font-size: .88rem; white-space: nowrap; min-width: max-content; }

/* Como funciona */
.passos { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: passo; position: relative; }
.passo { position: relative; background: var(--card); border: 1px solid var(--borda); border-radius: var(--raio); padding: 28px 24px; }
.passo-num {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  border: 2px solid var(--verde); color: var(--verde); font-family: 'Montserrat', sans-serif; font-weight: 800; margin-bottom: 16px;
}
.passo h3 { font-size: 1.1rem; margin-bottom: 6px; }
.passo p { color: var(--cinza); font-size: .93rem; }

/* Diferenciais */
.diferenciais { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.dif-texto p { color: var(--cinza); margin-top: 16px; font-size: 1.05rem; }
.dif-lista { list-style: none; display: grid; gap: 14px; }
.dif-lista li { display: flex; gap: 16px; align-items: flex-start; background: var(--card); border: 1px solid var(--borda); border-radius: 14px; padding: 18px 20px; }
.dif-lista i { color: var(--verde); font-size: 1.2rem; margin-top: 3px; width: 24px; text-align: center; }
.dif-lista b { display: block; }
.dif-lista span { color: var(--cinza); font-size: .92rem; }

/* CTA / formulário */
.cta { position: relative; overflow: hidden; }
.cta::before {
  content: ''; position: absolute; width: 700px; height: 700px; left: -250px; bottom: -350px;
  background: radial-gradient(circle, rgba(32,217,155,.14), transparent 65%); pointer-events: none;
}
.cta-inner { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.cta-texto p { color: var(--cinza); margin-top: 16px; font-size: 1.05rem; }
.cta-contatos { list-style: none; margin-top: 28px; display: grid; gap: 12px; }
.cta-contatos li { display: flex; align-items: center; gap: 12px; }
.cta-contatos i { color: var(--verde); width: 20px; text-align: center; font-size: 1.1rem; }
.cta-contatos a:hover { color: var(--verde); }
.form {
  background: var(--card); border: 1px solid var(--borda); border-radius: 22px; padding: 30px;
  display: grid; gap: 16px; box-shadow: 0 30px 80px rgba(0,0,0,.35);
}
.form label { display: grid; gap: 6px; font-size: .88rem; font-weight: 500; }
.opcional { color: var(--cinza); font-weight: 400; }
.form input, .form select, .form textarea {
  width: 100%; background: var(--preto); border: 1px solid rgba(255,255,255,.1); border-radius: 10px;
  padding: 13px 14px; color: var(--branco); font: 400 .95rem 'Inter', sans-serif; transition: border-color .2s, box-shadow .2s;
}
.form select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2320D99B' stroke-width='2' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 38px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--verde); box-shadow: 0 0 0 3px rgba(32,217,155,.15); }
.form textarea { resize: vertical; }
.form-erro { color: #ff7b7b; font-size: .85rem; min-height: 1em; }

/* Rodapé */
.rodape { border-top: 1px solid var(--borda); padding: 34px 0; }
.rodape-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.rodape-marca { display: flex; align-items: center; gap: 16px; }
.rodape-logo { height: 64px; width: auto; }
.rodape p { color: var(--cinza); font-size: .88rem; }

/* Botão flutuante */
.whats-flutuante {
  position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 58px; height: 58px; border-radius: 50%;
  display: grid; place-items: center; background: #25D366; color: #fff; font-size: 1.8rem;
  box-shadow: 0 10px 30px rgba(37,211,102,.4); transition: transform .2s;
}
.whats-flutuante:hover { transform: scale(1.08); }

/* Animação de entrada */
.revelar { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.revelar.visivel { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .revelar { opacity: 1; transform: none; }
}

/* ---------- Responsivo ---------- */
@media (max-width: 980px) {
  .hero-inner, .diferenciais, .cta-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { max-width: 520px; width: 100%; margin: 0 auto; }
  .solucoes-grid, .sistemas-grid { grid-template-columns: repeat(2, 1fr); }
  .passos { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .menu {
    position: fixed; top: 72px; left: 0; right: 0; flex-direction: column; gap: 0; margin: 0;
    background: rgba(5,10,10,.97); border-bottom: 1px solid var(--borda);
    max-height: 0; overflow: hidden; transition: max-height .3s;
  }
  .menu.aberto { max-height: 320px; }
  .menu a { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,.05); }
  .btn-topo { display: none; }
  .menu-toggle { display: block; }
  .topo { background: rgba(5,10,10,.9); backdrop-filter: blur(12px); }
  .hero { padding: 112px 0 70px; }
  .secao { padding: 72px 0; }
  .solucoes-grid, .sistemas-grid, .passos { grid-template-columns: 1fr; }
  .hero-botoes .btn { flex: 1 1 100%; }
  .celular { display: none; }
  .hero-visual { min-height: 0; }
  .painel { transform: none; }
  .kpi strong { font-size: .9rem; }
  .sistema-acoes { flex-direction: column; }
  .form { padding: 22px; }
}

/* Três caminhos do topo (link da bio) */
.caminhos-titulo { color: var(--cinza); font-size: .9rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin: 4px 0 12px; }
.caminhos { display: grid; gap: 12px; max-width: 520px; }
.caminho { display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-radius: var(--raio); background: var(--card);
  border: 1px solid var(--borda); transition: .2s; }
.caminho:hover { border-color: var(--verde); box-shadow: var(--sombra-verde); transform: translateY(-2px); }
.caminho-ic { font-size: 1.7rem; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; background: rgba(32,217,155,.08); flex-shrink: 0; }
.caminho-txt { display: flex; flex-direction: column; flex: 1; line-height: 1.3; }
.caminho-txt b { font-family: 'Montserrat', sans-serif; font-size: 1rem; }
.caminho-txt small { color: var(--cinza); font-size: .82rem; }
.caminho > i { color: var(--verde); }
.ver-todos { display: inline-flex; align-items: center; gap: 8px; margin-top: 16px; color: var(--verde); font-weight: 600; font-size: .92rem; }