:root {
  --azul: #2563eb;
  --azul-escuro: #1d4ed8;
  --azul-suave: #eaf1ff;
  --verde: #00b87c;
  --verde-suave: #e3f8f0;
  --vermelho: #e11d48;
  --vermelho-suave: #fde7eb;
  --fundo: #f5f7fb;
  --branco: #ffffff;
  --texto: #111827;
  --texto-suave: #6b7280;
  --borda: #e6e9f0;
  --sombra: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);
  --sombra-hover: 0 8px 24px rgba(16, 24, 40, .10);
  --raio: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--fundo);
  color: var(--texto);
  -webkit-font-smoothing: antialiased;
}

/* ---------- marca ---------- */
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--azul);
  color: #fff; font-weight: 700; font-size: 14px;
  border-radius: 9px;
  letter-spacing: .5px;
}
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: -.2px; }

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  border: none; cursor: pointer;
  padding: 11px 18px;
  border-radius: 10px;
  font-family: inherit; font-size: 14px; font-weight: 600;
  transition: background .15s, transform .05s, box-shadow .15s;
}
.btn-primary { background: var(--azul); color: #fff; }
.btn-primary:hover { background: var(--azul-escuro); box-shadow: 0 4px 12px rgba(37,99,235,.3); }
.btn-primary:active { transform: translateY(1px); }
.btn-block { width: 100%; }
.btn-ghost { background: transparent; color: var(--texto-suave); border: 1px solid var(--borda); }
.btn-ghost:hover { background: var(--fundo); color: var(--texto); }

/* ---------- chat ---------- */
.topbar-right { display: flex; align-items: center; gap: 12px; }
.chat {
  display: flex; flex-direction: column;
  height: calc(100vh - 86px);
}
.mensagens {
  flex: 1; overflow-y: auto;
  padding: 24px 32px;
  display: flex; flex-direction: column; gap: 14px;
}
.vazio { margin: auto; color: var(--texto-suave); font-size: 15px; }
.msg { display: flex; }
.msg.user { justify-content: flex-end; }
.msg.assistant { justify-content: flex-start; }
.bolha {
  max-width: min(680px, 80%);
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 15px; line-height: 1.5;
  white-space: pre-wrap; word-wrap: break-word;
  box-shadow: var(--sombra);
}
.msg.user .bolha {
  background: var(--azul); color: #fff;
  border-bottom-right-radius: 4px;
}
.msg.assistant .bolha {
  background: var(--branco); color: var(--texto);
  border: 1px solid var(--borda);
  border-bottom-left-radius: 4px;
}
.bolha.digitando { color: var(--texto-suave); }

.chat-input {
  display: flex; align-items: flex-end; gap: 10px;
  padding: 16px 32px;
  border-top: 1px solid var(--borda);
  background: var(--branco);
}
.chat-input textarea {
  flex: 1; resize: none;
  padding: 12px 14px;
  border: 1px solid var(--borda);
  border-radius: 12px;
  font-family: inherit; font-size: 15px; line-height: 1.4;
  background: #fff; color: var(--texto);
  max-height: 160px;
}
.chat-input textarea:focus {
  outline: none; border-color: var(--azul);
  box-shadow: 0 0 0 3px var(--azul-suave);
}
.anexo {
  width: 44px; height: 44px; flex-shrink: 0;
  display: grid; place-items: center;
  border: 1px solid var(--borda);
  border-radius: 12px;
  font-size: 18px; cursor: pointer;
  transition: background .12s;
}
.anexo:hover { background: var(--fundo); }
.anexos-info {
  padding: 0 32px 12px;
  color: var(--texto-suave); font-size: 13px;
  background: var(--branco);
}

/* ---------- login ---------- */
.auth {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 18px;
  background:
    radial-gradient(1200px 500px at 50% -10%, #e8efff 0%, transparent 60%),
    var(--fundo);
  padding: 24px;
}
.auth-card {
  width: 100%; max-width: 380px;
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: 18px;
  box-shadow: var(--sombra);
  padding: 32px 30px;
}
.auth-card .brand { margin-bottom: 22px; }
.auth-title { font-size: 22px; margin: 0 0 4px; letter-spacing: -.4px; }
.auth-sub { margin: 0 0 22px; color: var(--texto-suave); font-size: 14px; }
.auth-foot { color: var(--texto-suave); font-size: 12px; }

.form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13px; font-weight: 500; color: var(--texto-suave); }
input {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--borda);
  border-radius: 10px;
  background: #fff;
  color: var(--texto);
  font-family: inherit; font-size: 15px;
  transition: border-color .15s, box-shadow .15s;
}
input:focus {
  outline: none;
  border-color: var(--azul);
  box-shadow: 0 0 0 3px var(--azul-suave);
}

.alert {
  background: var(--vermelho-suave);
  color: var(--vermelho);
  border: 1px solid #f6c9d3;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ---------- layout do painel ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 250px; flex-shrink: 0;
  background: var(--branco);
  border-right: 1px solid var(--borda);
  padding: 22px 16px;
  display: flex; flex-direction: column;
}
.sidebar .brand { padding: 4px 8px 22px; }
.nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--texto-suave);
  text-decoration: none;
  font-size: 14px; font-weight: 500;
  transition: background .12s, color .12s;
}
.nav-item:hover { background: var(--fundo); color: var(--texto); }
.nav-item.active { background: var(--azul-suave); color: var(--azul); font-weight: 600; }
.nav-ico { font-size: 15px; width: 18px; text-align: center; }
.nav-foot { margin-top: auto; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 32px;
  background: var(--branco);
  border-bottom: 1px solid var(--borda);
}
.page-title { font-size: 20px; margin: 0; letter-spacing: -.3px; }
.page-sub { margin: 3px 0 0; color: var(--texto-suave); font-size: 13px; }
.user { display: flex; align-items: center; gap: 10px; }
.avatar {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--azul-suave); color: var(--azul);
  border-radius: 50%;
  font-weight: 700; font-size: 14px;
}
.user-name { font-size: 14px; font-weight: 500; }

.content { padding: 28px 32px; }

/* ---------- cards de agente ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}
.agent-card {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 20px;
  box-shadow: var(--sombra);
  transition: box-shadow .15s, transform .1s;
}
.agent-card:hover { box-shadow: var(--sombra-hover); transform: translateY(-2px); }
.agent-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.agent-ico {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  background: var(--azul-suave);
  border-radius: 11px;
  font-size: 20px;
}
.agent-name { margin: 0 0 4px; font-size: 17px; text-transform: capitalize; letter-spacing: -.2px; }
.agent-desc { margin: 0 0 16px; color: var(--texto-suave); font-size: 13px; }

.badge {
  font-size: 11px; font-weight: 600;
  padding: 4px 10px; border-radius: 999px;
  text-transform: uppercase; letter-spacing: .4px;
}
.badge-ok { background: var(--verde-suave); color: var(--verde); }
.badge-err { background: var(--vermelho-suave); color: var(--vermelho); }

/* ---------- resultado ---------- */
.result-card {
  margin-top: 24px;
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 22px;
  box-shadow: var(--sombra);
}
.result-head { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.result-head h2 { margin: 0; font-size: 16px; }
.result-summary { margin: 0 0 14px; color: var(--texto-suave); font-size: 14px; }
.result-json {
  background: #0f172a; color: #e2e8f0;
  padding: 16px; border-radius: 10px;
  overflow-x: auto;
  font-family: 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
  font-size: 12.5px; line-height: 1.6;
  margin: 0;
}

/* ---------- responsivo ---------- */
@media (max-width: 720px) {
  .sidebar { width: 68px; }
  .brand-name, .nav-item span:not(.nav-ico) { display: none; }
  .topbar, .content { padding-left: 18px; padding-right: 18px; }
}