/* ============================================================
   CotAí :: Identidade visual — Oceano Azul
   Moderno, limpo, futurista. "Cotaí antes de comprar."
   ============================================================ */
:root{
  /* Oceano azul */
  --azul-profundo:#021B3A;
  --azul-noite:#04284F;
  --azul-mar:#0A6CFF;
  --azul-claro:#26A9F4;
  --ciano:#00E0D5;
  --espuma:#E8F6FF;
  --branco:#FFFFFF;
  --texto:#0A2540;
  --texto-claro:#4A6B8A;
  --texto-suave:#5B7A9E;
  --cinza-claro:#F0F6FC;
  --borda:#D6E6F5;
  --verde:#00C896;
  --vermelho:#FF5A6E;
  --ambar:#FFAA2C;
  /* sombras */
  --sombra-sm:0 1px 3px rgba(4,40,79,.08);
  --sombra:0 4px 20px rgba(4,40,79,.10);
  --sombra-lg:0 12px 40px rgba(4,40,79,.16);
  --raio:14px;
  --raio-sm:10px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'DM Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--espuma);
  color:var(--texto);
  font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes wave{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--borda);padding:.8rem 1.5rem;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--azul-profundo)}
.logo-mark{width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--azul-mar),var(--ciano));
  display:flex;align-items:center;justify-content:center;font-size:20px;
  box-shadow:0 4px 14px rgba(10,108,255,.35)}
.logo-nome{font-family:'Sora',sans-serif;font-weight:800;font-size:1.4rem;letter-spacing:-.5px}
.logo-nome span{color:var(--azul-mar)}
.nav-acoes{display:flex;align-items:center;gap:.6rem}
.btn-entrar{background:none;border:1.5px solid var(--borda);color:var(--texto);
  padding:.5rem 1.1rem;border-radius:var(--raio-sm);font-size:.88rem;font-weight:600;cursor:pointer;
  font-family:inherit;transition:all .2s;text-decoration:none}
.btn-entrar:hover{border-color:var(--azul-mar);color:var(--azul-mar)}
.btn-cta{background:linear-gradient(135deg,var(--azul-mar),var(--azul-claro));color:#fff;border:none;
  padding:.55rem 1.3rem;border-radius:var(--raio-sm);font-size:.88rem;font-weight:700;cursor:pointer;
  font-family:inherit;transition:all .2s;text-decoration:none;box-shadow:0 4px 14px rgba(10,108,255,.3)}
.btn-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(10,108,255,.45)}
.lang{background:var(--cinza-claro);border:1px solid var(--borda);border-radius:8px;padding:.4rem .6rem;
  font-size:.8rem;font-family:inherit;cursor:pointer;color:var(--texto)}

/* ===== HERO ===== */
.hero{position:relative;padding:3.5rem 1.5rem 2rem;text-align:center;overflow:hidden;
  background:linear-gradient(180deg,var(--azul-profundo),var(--azul-noite));color:#fff}
.hero::before{content:'';position:absolute;inset:0;
  background-image:radial-gradient(circle at 20% 30%,rgba(0,224,213,.15),transparent 40%),
    radial-gradient(circle at 80% 20%,rgba(10,108,255,.25),transparent 45%);
  pointer-events:none}
.hero-ondas{position:absolute;bottom:-1px;left:0;width:100%;height:60px;
  background:var(--espuma);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60'%3E%3Cpath d='M0 30 Q150 0 300 30 T600 30 T900 30 T1200 30 V60 H0Z' fill='black'/%3E%3C/svg%3E") bottom/100% 100% no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60'%3E%3Cpath d='M0 30 Q150 0 300 30 T600 30 T900 30 T1200 30 V60 H0Z' fill='black'/%3E%3C/svg%3E") bottom/100% 100% no-repeat}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:rgba(0,224,213,.12);
  border:1px solid rgba(0,224,213,.3);color:var(--ciano);padding:.35rem 1rem;border-radius:999px;
  font-size:.78rem;font-weight:600;margin-bottom:1.4rem;position:relative;animation:fadeUp .5s ease both}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--ciano);animation:pulse 1.6s infinite}
.hero h1{font-family:'Sora',sans-serif;font-weight:800;font-size:clamp(1.9rem,5vw,3.2rem);
  line-height:1.12;letter-spacing:-1.5px;margin-bottom:.8rem;position:relative;animation:fadeUp .5s .07s ease both}
.hero h1 .destaque{background:linear-gradient(120deg,var(--ciano),var(--azul-claro));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{color:#B4D4F0;font-size:1.08rem;max-width:540px;margin:0 auto 1rem;position:relative;
  animation:fadeUp .5s .14s ease both}
.hero-slogan{font-family:'Sora',sans-serif;font-style:italic;color:var(--ciano);font-size:1rem;
  margin-bottom:2rem;position:relative;animation:fadeUp .5s .2s ease both}

/* ===== SELETOR DE NICHOS ===== */
.nichos{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem;max-width:560px;margin:0 auto 1.2rem;
  position:relative;animation:fadeUp .5s .26s ease both}
.nicho{background:rgba(255,255,255,.08);border:1.5px solid rgba(255,255,255,.15);border-radius:var(--raio);
  padding:1.1rem .6rem;cursor:pointer;transition:all .25s;text-align:center;backdrop-filter:blur(10px)}
.nicho:hover{background:rgba(255,255,255,.14);transform:translateY(-3px)}
.nicho.ativo{background:#fff;border-color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.nicho.ativo .nicho-nome{color:var(--azul-profundo)}
.nicho.ativo .nicho-desc{color:var(--texto-suave)}
.nicho-ico{font-size:1.7rem;margin-bottom:.35rem;display:block}
.nicho-nome{font-family:'Sora',sans-serif;font-weight:700;font-size:.92rem;color:#fff}
.nicho-desc{font-size:.68rem;color:#9FC4E8;margin-top:2px}

/* ===== BOX DE BUSCA ===== */
.busca{max-width:680px;margin:0 auto;background:#fff;border-radius:var(--raio);padding:1.3rem;
  box-shadow:var(--sombra-lg);position:relative;animation:fadeUp .5s .32s ease both}
.busca-aviso{font-size:.74rem;color:var(--texto-suave);text-align:center;margin-bottom:1rem;
  display:flex;align-items:center;justify-content:center;gap:.4rem}
.busca-aviso .free{background:var(--verde);color:#fff;padding:.1rem .5rem;border-radius:5px;font-weight:700;font-size:.68rem}
.campos{display:grid;gap:.7rem;margin-bottom:.9rem}
.campo{display:flex;flex-direction:column;gap:.3rem;position:relative;text-align:left}
.campo label{font-size:.72rem;font-weight:600;color:var(--texto);padding-left:2px}
.campo label b{color:var(--azul-mar)}
.input{background:var(--cinza-claro);border:1.5px solid var(--borda);color:var(--texto);
  padding:.7rem .9rem;border-radius:var(--raio-sm);font-size:.9rem;font-family:inherit;outline:none;
  width:100%;transition:all .2s}
.input:focus{border-color:var(--azul-mar);background:#fff;box-shadow:0 0 0 3px rgba(10,108,255,.1)}
.input::placeholder{color:var(--texto-suave)}
.dica{font-size:.68rem;color:var(--texto-suave);display:flex;align-items:center;gap:.3rem}
.ac{display:none;position:absolute;top:calc(100% + 4px);left:0;right:0;z-index:30;background:#fff;
  border:1px solid var(--borda);border-radius:var(--raio-sm);overflow:hidden;max-height:240px;overflow-y:auto;
  box-shadow:var(--sombra)}
.ac.aberto{display:block}
.ac-item{padding:.6rem .9rem;font-size:.86rem;cursor:pointer;display:flex;justify-content:space-between;
  align-items:center;gap:.5rem;border-bottom:1px solid var(--cinza-claro)}
.ac-item:last-child{border:none}
.ac-item:hover,.ac-item.sel{background:var(--espuma)}
.ac-item b{color:var(--azul-mar)}
.uf-tag{font-size:.66rem;font-weight:700;padding:.1rem .45rem;border-radius:5px;background:var(--cinza-claro);
  color:var(--texto-suave);flex-shrink:0}
.uf-tag.go{background:rgba(0,200,150,.12);color:var(--verde)}
.campos.duplo{grid-template-columns:1fr 1fr}
.btn-buscar{width:100%;background:linear-gradient(135deg,var(--azul-mar),var(--azul-claro));color:#fff;
  border:none;padding:.85rem;border-radius:var(--raio-sm);font-weight:700;font-size:.95rem;cursor:pointer;
  font-family:inherit;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:.5rem;
  box-shadow:0 4px 16px rgba(10,108,255,.3)}
.btn-buscar:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(10,108,255,.45)}

/* ===== SELO DE ATUALIZAÇÃO ===== */
.selo{display:inline-flex;align-items:center;gap:.4rem;font-size:.72rem;font-weight:600;
  padding:.3rem .7rem;border-radius:999px;margin-bottom:.8rem}
.selo.tempo-real{background:rgba(0,200,150,.1);color:var(--verde);border:1px solid rgba(0,200,150,.25)}
.selo.tempo-real .dot{width:7px;height:7px;border-radius:50%;background:var(--verde);animation:pulse 1.4s infinite}
.selo.sefaz{background:rgba(255,170,44,.1);color:#C77A00;border:1px solid rgba(255,170,44,.25)}

/* ===== RESULTADO ===== */
.resultado{margin-top:1.2rem;display:none;text-align:left}
.resultado.on{display:block;animation:fadeUp .4s ease}
.emp-card{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:1.1rem;
  margin-bottom:.7rem;transition:all .2s}
.emp-card:hover{box-shadow:var(--sombra);border-color:var(--azul-claro)}
.emp-card.melhor{border:2px solid var(--verde);position:relative}
.emp-card.melhor::before{content:'🏆 Mais barato';position:absolute;top:-10px;left:14px;
  background:var(--verde);color:#fff;font-size:.66rem;font-weight:700;padding:.15rem .6rem;border-radius:6px}
.emp-topo{display:flex;justify-content:space-between;align-items:flex-start;gap:.6rem;margin-bottom:.7rem}
.emp-nome{font-family:'Sora',sans-serif;font-weight:700;font-size:1rem;color:var(--texto)}
.emp-razao{font-size:.72rem;color:var(--texto-suave);margin-top:1px}
.emp-end{font-size:.74rem;color:var(--texto-suave);margin-top:4px;display:flex;align-items:center;gap:.3rem}
.emp-mapa{font-size:.72rem;color:var(--azul-mar);margin-top:3px;cursor:pointer;text-decoration:none;
  display:inline-flex;align-items:center;gap:.3rem;font-weight:600}
.emp-preco{text-align:right;flex-shrink:0}
.emp-preco-valor{font-family:'Sora',sans-serif;font-weight:800;font-size:1.5rem;color:var(--azul-mar)}
.emp-preco-data{font-size:.66rem;color:var(--texto-suave);margin-top:2px}
.tend{font-size:.7rem;font-weight:700}
.tend.subiu{color:var(--vermelho)}.tend.baixou{color:var(--verde)}.tend.estavel{color:var(--texto-suave)}
.carregando{text-align:center;padding:2rem;color:var(--texto-suave)}
.spinner{width:32px;height:32px;border:3px solid var(--borda);border-top-color:var(--azul-mar);
  border-radius:50%;animation:girar .8s linear infinite;margin:0 auto .8rem}
@keyframes girar{to{transform:rotate(360deg)}}

/* ===== SEÇÕES ===== */
.secao{max-width:1100px;margin:0 auto;padding:3rem 1.5rem}
.secao-titulo{font-family:'Sora',sans-serif;font-weight:800;font-size:1.8rem;text-align:center;
  color:var(--azul-profundo);margin-bottom:.5rem;letter-spacing:-.5px}
.secao-sub{text-align:center;color:var(--texto-suave);margin-bottom:2.5rem;max-width:520px;margin-left:auto;margin-right:auto}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.feature{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:1.6rem;text-align:center;transition:all .25s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--sombra)}
.feature-ico{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--azul-mar),var(--ciano));
  display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 1rem;
  box-shadow:0 6px 18px rgba(10,108,255,.3)}
.feature h3{font-family:'Sora',sans-serif;font-weight:700;font-size:1.1rem;margin-bottom:.5rem;color:var(--azul-profundo)}
.feature p{font-size:.88rem;color:var(--texto-suave)}

/* anúncios */
.anuncio{background:linear-gradient(135deg,var(--cinza-claro),#fff);border:1px dashed var(--borda);
  border-radius:var(--raio);padding:1rem;text-align:center;color:var(--texto-suave);font-size:.8rem;margin:1rem auto;max-width:1100px}

/* ===== RODAPÉ ===== */
.rodape{background:var(--azul-profundo);color:#B4D4F0;padding:3rem 1.5rem 1.5rem;margin-top:3rem}
.rodape-grid{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem}
.rodape-col h4{font-family:'Sora',sans-serif;color:#fff;font-size:.95rem;margin-bottom:1rem;font-weight:700}
.rodape-col a{display:block;color:#8FB8DE;text-decoration:none;font-size:.85rem;margin-bottom:.55rem;transition:color .2s}
.rodape-col a:hover{color:var(--ciano)}
.rodape-sobre{font-size:.85rem;line-height:1.7;color:#8FB8DE;max-width:280px}
.rodape-logo{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}
.rodape-base{max-width:1100px;margin:2rem auto 0;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.78rem;color:#6F95BE}
.rodape-aviso{font-size:.72rem;color:#5C82AC;max-width:1100px;margin:1rem auto 0;line-height:1.6}

@media(max-width:760px){
  .nichos{grid-template-columns:repeat(3,1fr)}
  .cards-3{grid-template-columns:1fr}
  .rodape-grid{grid-template-columns:1fr 1fr}
  .nav-acoes .btn-entrar{display:none}
}
@media(max-width:480px){
  .rodape-grid{grid-template-columns:1fr}
  .emp-topo{flex-direction:column}
  .emp-preco{text-align:left}
}