.nexa-flow-network {
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.58) 0%, rgba(15, 23, 42, 0.44) 100%);
    padding: clamp(1rem, 2.4vw, 1.35rem);
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.08);
}

.nexa-flow-network__panel {
    position: relative;
    border-radius: 12px;
    border: 1px solid rgba(37, 99, 235, 0.16);
    background:
        radial-gradient(circle at 50% 45%, rgba(37, 99, 235, 0.22), transparent 48%),
        linear-gradient(180deg, rgba(30, 58, 138, 0.36) 0%, rgba(15, 23, 42, 0.68) 100%);
    padding: clamp(1rem, 2.2vw, 1.4rem);
    overflow: hidden;
}

.nexa-flow-network__panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(148, 163, 184, 0.09) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.09) 1px, transparent 1px);
    background-size: 16px 16px;
    opacity: 0.28;
    pointer-events: none;
}

.nexa-flow-network__row {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.9rem;
    width: min(100%, 980px);
    margin-inline: auto;
}

.nexa-flow-network__row--top,
.nexa-flow-network__row--mid,
.nexa-flow-network__row--bottom {
    margin-bottom: 0.9rem;
}

.nexa-flow-network__row--mid::before,
.nexa-flow-network__row--mid::after,
.nexa-flow-network__row--end::before {
    content: "";
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.nexa-flow-network__row--mid::before {
    left: 50%;
    top: -1rem;
    width: 1px;
    height: 1rem;
    background: rgba(148, 163, 184, 0.42);
}

.nexa-flow-network__row--mid::after {
    left: 50%;
    bottom: -1rem;
    width: 1px;
    height: 1rem;
    background: rgba(148, 163, 184, 0.42);
}

.nexa-flow-network__row--end::before {
    left: 50%;
    top: -0.9rem;
    width: 1px;
    height: 0.9rem;
    background: rgba(148, 163, 184, 0.42);
}

.nexa-flow-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0.95rem;
    border-radius: 8px;
    border: 1px solid rgba(148, 163, 184, 0.36);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.55), rgba(79, 70, 229, 0.35));
    color: #eef2ff;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
    animation: nexa-chip-float 5.8s ease-in-out infinite;
}

.nexa-flow-network__row--top .nexa-flow-chip {
    flex: 1 1 0;
    min-width: 0;
}

.nexa-flow-network__row--mid {
    justify-content: space-between;
}

.nexa-flow-network__row--mid .nexa-flow-chip--alt {
    min-width: 150px;
}

.nexa-flow-network__row--bottom {
    justify-content: space-around;
}

.nexa-flow-network__row--bottom .nexa-flow-chip {
    min-width: 190px;
}

.nexa-flow-network__row--end .nexa-flow-chip {
    min-width: 220px;
}

.nexa-flow-chip:nth-child(2) { animation-delay: 0.3s; }
.nexa-flow-chip:nth-child(3) { animation-delay: 0.6s; }
.nexa-flow-chip:nth-child(4) { animation-delay: 0.9s; }

.nexa-flow-chip.is-active {
    border-color: rgba(191, 219, 254, 0.9);
    box-shadow: 0 0 0 1px rgba(191, 219, 254, 0.25), 0 6px 18px rgba(59, 130, 246, 0.45);
    transform: translateY(-1px);
}

.nexa-flow-chip--alt {
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.62), rgba(37, 99, 235, 0.36));
}

.nexa-flow-hub {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-height: 56px;
    min-width: 176px;
    justify-content: center;
    padding: 0.58rem 1rem;
    border-radius: 10px;
    border: 1px solid rgba(59, 130, 246, 0.45);
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.78), rgba(37, 99, 235, 0.56));
    box-shadow: 0 12px 26px rgba(37, 99, 235, 0.35);
    color: #f8fafc;
    font-weight: 700;
    letter-spacing: 0.03em;
    z-index: 1;
    animation: nexa-hub-pulse 3.2s ease-in-out infinite;
}

@keyframes nexa-hub-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes nexa-chip-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-2px); }
}

@media (max-width: 899px) {
    .nexa-flow-network__row { flex-wrap: wrap; width: 100%; gap: 0.7rem; }
    .nexa-flow-network__row--top .nexa-flow-chip,
    .nexa-flow-network__row--mid .nexa-flow-chip--alt,
    .nexa-flow-network__row--bottom .nexa-flow-chip,
    .nexa-flow-network__row--end .nexa-flow-chip {
        min-width: 140px;
    }
    .nexa-flow-network__row--mid { justify-content: center; }
}

@media (max-width: 639px) {
    .nexa-flow-network__row { justify-content: flex-start; }
    .nexa-flow-network__row--mid::before,
    .nexa-flow-network__row--mid::after,
    .nexa-flow-network__row--end::before { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .nexa-flow-hub, .nexa-flow-chip { animation: none; }
}