/*
 * Visualizzazione RAW — La fase invisibile della materia quantistica
 * CSS scoped: prefisso .saturnus-phase-demo / .spd-
 */

.saturnus-phase-demo {
  --spd-bg: #f5f1e8;
  --spd-panel: #fffaf1;
  --spd-ink: #202428;
  --spd-muted: #5c6268;
  --spd-line: rgba(32, 36, 40, 0.14);
  --spd-accent: #6d2f2a;
  --spd-accent-soft: rgba(109, 47, 42, 0.12);
  --spd-gold: #8a6f3d;

  margin: 2.4rem 0;
  padding: 1.25rem;
  border: 1px solid var(--spd-line);
  border-radius: 22px;
  background:
    radial-gradient(circle at 20% 0%, rgba(138, 111, 61, 0.12), transparent 32%),
    linear-gradient(135deg, #f7f3ea 0%, #ece7dc 100%);
  color: var(--spd-ink);
  box-shadow: 0 18px 42px rgba(10, 12, 16, 0.12);
  overflow: hidden;
}

.saturnus-phase-demo * {
  box-sizing: border-box;
}

.spd-header {
  max-width: 980px;
  margin: 0 auto 1.15rem auto;
  padding: 0.75rem 0.4rem;
}

.spd-kicker {
  margin: 0 0 0.35rem 0;
  font-size: 0.78rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--spd-accent);
  font-weight: 800;
}

.spd-header h3 {
  margin: 0 0 0.45rem 0;
  font-size: clamp(1.35rem, 2vw, 2.15rem);
  line-height: 1.08;
  color: var(--spd-ink);
}

.spd-header p {
  margin: 0;
  max-width: 860px;
  color: var(--spd-muted);
  line-height: 1.65;
}

.spd-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(290px, 0.65fr);
  gap: 1rem;
  align-items: stretch;
}

.spd-panel {
  border: 1px solid var(--spd-line);
  border-radius: 18px;
  background: rgba(255, 250, 241, 0.86);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.55);
}

.spd-panel-canvas {
  padding: 0.8rem;
}

.spd-panel-controls {
  padding: 1rem;
}

.spd-panel-title {
  margin: 0 0 0.75rem 0;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--spd-muted);
}

.spd-canvas {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(32, 36, 40, 0.12);
  border-radius: 15px;
  background: var(--spd-bg);
}

.spd-caption {
  margin: 0.65rem 0 0 0;
  color: var(--spd-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.spd-control {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.55rem 0.75rem;
  align-items: center;
  margin-bottom: 1rem;
  color: var(--spd-ink);
}

.spd-control span {
  font-weight: 700;
}

.spd-control strong {
  color: var(--spd-accent);
  font-variant-numeric: tabular-nums;
}

.spd-control input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--spd-accent);
}

.spd-readouts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin: 1rem 0;
}

.spd-readouts div {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 14px;
  background: rgba(32, 36, 40, 0.045);
  border: 1px solid rgba(32, 36, 40, 0.08);
}

.spd-readouts span {
  color: var(--spd-muted);
}

.spd-readouts strong {
  color: var(--spd-ink);
  font-variant-numeric: tabular-nums;
}

.spd-meter {
  width: 100%;
  height: 16px;
  border-radius: 999px;
  background: rgba(32, 36, 40, 0.10);
  overflow: hidden;
  border: 1px solid rgba(32, 36, 40, 0.10);
}

.spd-meter-fill {
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, var(--spd-gold), var(--spd-accent));
  border-radius: inherit;
  transition: width 120ms linear;
}

.spd-status {
  margin: 1rem 0;
  padding: 0.85rem;
  border-radius: 14px;
  background: var(--spd-accent-soft);
  border: 1px solid rgba(109, 47, 42, 0.18);
  line-height: 1.45;
}

.spd-status-title {
  color: var(--spd-accent);
}

.spd-explanation {
  color: var(--spd-muted);
  line-height: 1.55;
  font-size: 0.94rem;
}

.spd-explanation p {
  margin: 0 0 0.75rem 0;
}

.spd-explanation p:last-child {
  margin-bottom: 0;
}

.spd-milestone {
  margin: 1rem 0 0 0;
  padding: 1rem 1.1rem;
  border-left: 5px solid var(--spd-accent);
  border-radius: 14px;
  background: rgba(255, 250, 241, 0.88);
  color: var(--spd-ink);
  line-height: 1.6;
}

.spd-milestone strong {
  color: var(--spd-accent);
}

@media (max-width: 880px) {
  .spd-grid {
    grid-template-columns: 1fr;
  }

  .saturnus-phase-demo {
    padding: 1rem;
    border-radius: 18px;
  }
}