.diagrama {
  padding-block: clamp(1.5rem, 5vw, 2.5rem) var(--section-y);
}

.diagrama__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.diagrama__caption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

.diagrama__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 640px;
  background:
    radial-gradient(circle at 50% 50%, transparent 0, transparent 15%, var(--border-hair) 15.4%, transparent 15.8%),
    radial-gradient(circle at 50% 50%, transparent 0, transparent 30%, var(--border-hair) 30.4%, transparent 30.8%),
    radial-gradient(circle at 50% 50%, transparent 0, transparent 45%, var(--border-hair) 45.4%, transparent 45.8%);
}

.diagrama__lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.diagrama__lines line {
  stroke: var(--border-strong);
  stroke-width: 1;
  stroke-dasharray: 2 7;
  animation: dash-flow 5.5s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .diagrama__lines line { animation: none; }
}
@keyframes dash-flow {
  to { stroke-dashoffset: -180; }
}

.node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  padding: 0;
  color: var(--text-primary);
}

.node__dot {
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-mono);
  line-height: 1.25;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-strong);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

/* Núcleo — fixo, sempre no centro */
.node--core {
  z-index: 2;
}
.node--core .node__dot {
  width: 132px;
  height: 132px;
  font-size: 0.9rem;
  border-color: var(--gold);
  box-shadow: 0 0 0 0 var(--gold-glow);
  animation: pulse-core 3.6s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) {
  .node--core .node__dot { animation: none; }
}
@keyframes pulse-core {
  0%, 100% { box-shadow: 0 0 0 0 var(--gold-glow); }
  50% { box-shadow: 0 0 0 16px transparent; }
}

/* Operação — nó grande, órbita distante */
.node--live .node__dot {
  width: 108px;
  height: 108px;
  font-size: 0.8rem;
  border-style: solid;
  border-color: var(--gold-dim);
}
.node--live .node__label { color: var(--gold-dim); }

/* Em breve — nó médio, órbita intermediária */
.node--soon .node__dot {
  width: 76px;
  height: 76px;
  font-size: 0.72rem;
  border-style: dashed;
  opacity: 0.8;
}

/* Ideia — nó pequeno, órbita próxima do núcleo */
.node--idea .node__dot {
  width: 46px;
  height: 46px;
  font-size: 0.6rem;
  border-style: dotted;
  opacity: 0.55;
}
.node--idea .node__label { opacity: 0.6; }

.node:not(.node--core):hover .node__dot,
.node:not(.node--core):focus-visible .node__dot {
  border-color: var(--gold);
}

.node__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-tertiary);
  white-space: nowrap;
}

/* ===== Card sobreposto ===== */
.projeto-card {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--gutter);
  background: rgba(10, 8, 6, 0.75);
  backdrop-filter: blur(4px);
}
.projeto-card.is-open { display: flex; }

.projeto-card__panel {
  width: 100%;
  max-width: 420px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-m);
  padding: 2.25rem;
  position: relative;
  transform: translateY(10px);
  opacity: 0;
  animation: card-in var(--dur-med) var(--ease-out-strong) forwards;
}
@keyframes card-in {
  to { transform: translateY(0); opacity: 1; }
}

.projeto-card__close {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 1.3rem;
  line-height: 1;
}
.projeto-card__close:hover { color: var(--text-primary); }

.projeto-card__status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 0.25rem 0.7rem;
  margin-bottom: 1rem;
}
.projeto-card__status[data-status="em breve"],
.projeto-card__status[data-status="ideia"] { color: var(--text-tertiary); }

.projeto-card__panel h3 {
  font-size: 1.5rem;
  margin-bottom: 0.35rem;
}
.projeto-card__area {
  color: var(--gold-dim);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.projeto-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 1.75rem;
}