:root {
    --bg: #0f1226;
    --bg-2: #161a36;
    --card: #1c2142;
    --card-2: #232a52;
    --txt: #e8ebff;
    --muted: #99a0cf;
    --verde: #2ecc71;
    --verde-d: #27ae60;
    --azul: #3aa0ff;
    --azul-d: #2b7fd6;
    --cinza: #6b73a3;
    --amarelo: #ffd166;
    --borda: #2c3361;
    --radius: 14px;
    --sombra: 0 8px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: radial-gradient(1200px 600px at 70% -10%, #1d2350 0%, var(--bg) 55%) fixed;
    color: var(--txt);
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.55;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

.topo { padding: 38px 0 22px; border-bottom: 1px solid var(--borda); background: linear-gradient(180deg, rgba(58,160,255,.06), transparent); }
.topo h1 { margin: 0; font-size: 2rem; letter-spacing: .5px; }
.topo .sub { margin: 6px 0 0; color: var(--muted); font-size: 1.05rem; }

main { padding: 26px 0 10px; }

.card {
    background: linear-gradient(180deg, var(--card-2), var(--card));
    border: 1px solid var(--borda);
    border-radius: var(--radius);
    box-shadow: var(--sombra);
    padding: 22px 24px;
    margin: 0 0 22px;
}
.card h2 { margin: 0 0 10px; font-size: 1.2rem; display: flex; align-items: center; gap: 10px; }
.ajuda { color: var(--muted); margin: 0 0 16px; font-size: .92rem; }
.ajuda.dica { margin-top: 16px; background: rgba(255,209,102,.08); border: 1px solid rgba(255,209,102,.25); border-radius: 10px; padding: 12px 14px; color: #f2e7c4; }

code { background: rgba(255,255,255,.07); padding: 2px 7px; border-radius: 6px; font-size: .88em; color: #cdd6ff; }

/* Fluxo / diagrama */
.fluxo { display: flex; align-items: stretch; gap: 8px; flex-wrap: wrap; justify-content: center; margin: 18px 0 8px; }
.passo {
    flex: 1 1 0; min-width: 120px; text-align: center; padding: 14px 10px;
    background: var(--bg-2); border: 1px solid var(--borda); border-radius: 12px;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.passo.broker { background: linear-gradient(180deg, #14183a, #0d1030); }
.passo .ico { font-size: 1.6rem; }
.passo .rotulo { font-weight: 700; margin-top: 4px; }
.passo .desc { color: var(--muted); font-size: .78rem; margin-top: 3px; }
.passo.ativo { transform: translateY(-4px); border-color: var(--azul); box-shadow: 0 0 0 2px rgba(58,160,255,.35), var(--sombra); }
.passo.pulse-verde.ativo { border-color: var(--verde); box-shadow: 0 0 0 2px rgba(46,204,113,.4), var(--sombra); }
.seta { align-self: center; color: var(--cinza); font-size: 1.4rem; }
.topico-info { color: var(--muted); font-size: .85rem; margin: 14px 0 0; }

/* Grid produzir/consumir */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 760px) { .grid { grid-template-columns: 1fr; } .seta { transform: rotate(90deg); } }

.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot.verde { background: var(--verde); box-shadow: 0 0 10px var(--verde); }
.dot.azul { background: var(--azul); box-shadow: 0 0 10px var(--azul); }
.dot.cinza { background: var(--cinza); }

.controles { display: flex; align-items: flex-end; gap: 12px; margin-bottom: 14px; }
.controles label { display: flex; flex-direction: column; gap: 4px; font-size: .82rem; color: var(--muted); }
.controles input {
    width: 90px; padding: 9px 11px; border-radius: 9px; border: 1px solid var(--borda);
    background: var(--bg-2); color: var(--txt); font-size: 1rem;
}

.btn {
    border: 0; border-radius: 10px; padding: 11px 20px; font-size: .98rem; font-weight: 700;
    color: #06122a; cursor: pointer; transition: filter .15s ease, transform .05s ease;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: progress; }
.btn-verde { background: linear-gradient(180deg, var(--verde), var(--verde-d)); }
.btn-azul { background: linear-gradient(180deg, var(--azul), var(--azul-d)); color: #04223f; }

/* Listas de mensagens */
.lista { list-style: none; margin: 6px 0 0; padding: 0; max-height: 260px; overflow-y: auto; }
.lista li {
    display: flex; align-items: center; gap: 10px; padding: 9px 12px; margin-bottom: 7px;
    background: var(--bg-2); border: 1px solid var(--borda); border-radius: 10px;
    animation: aparece .35s ease both;
}
.lista li .tag {
    font-size: .68rem; font-weight: 800; letter-spacing: .5px; padding: 3px 8px; border-radius: 999px;
    background: rgba(58,160,255,.16); color: #bcd9ff; white-space: nowrap;
}
.lista li .tit { font-size: .9rem; }
.lista li .mid { margin-left: auto; color: var(--cinza); font-size: .72rem; font-family: ui-monospace, monospace; }
@keyframes aparece { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* Stats */
.stats { display: flex; gap: 14px; flex-wrap: wrap; }
.stat {
    flex: 1 1 0; min-width: 120px; text-align: center; padding: 16px 10px;
    background: var(--bg-2); border: 1px solid var(--borda); border-radius: 12px;
}
.stat.destaque { border-color: var(--amarelo); background: linear-gradient(180deg, rgba(255,209,102,.1), var(--bg-2)); }
.stat .num { display: block; font-size: 1.9rem; font-weight: 800; }
.stat .lbl { color: var(--muted); font-size: .8rem; }
.stat .num.flash { animation: flash .6s ease; }
@keyframes flash { 0% { color: var(--amarelo); transform: scale(1.18); } 100% { color: var(--txt); transform: none; } }

.refs ul { margin: 0; padding-left: 18px; color: var(--muted); }
.refs li { margin-bottom: 6px; }
.refs strong { color: var(--txt); }

.rodape { padding: 22px 20px 40px; color: var(--cinza); font-size: .82rem; display: flex; gap: 14px; align-items: center; }
.conn { font-size: .8rem; }
.conn.ok { color: var(--verde); }
.conn.erro { color: #ff6b6b; }