/* Article-specific illustration: light through fabric versus around its edges. */
.blackout-diagram {
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--paper-2);
}

.blackout-diagram__panels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.blackout-diagram .blackout-diagram__panel h3 {
  margin: 0 0 .5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.4;
  letter-spacing: -.01em;
  font-weight: 700;
}

.blackout-diagram__panel svg {
  width: 100%;
  max-width: 340px;
  margin-inline: auto;
}

.blackout-diagram .blackout-diagram__panel p {
  margin: .5rem 0 0;
  font-size: .875rem;
  line-height: 1.6;
  color: var(--ink-2);
}

.blackout-diagram__wall { fill: var(--paper); }
.blackout-diagram__frame { fill: var(--paper-3); }
.blackout-diagram__sill { fill: var(--line-2); }
.blackout-diagram__light { fill: var(--brass-lift); }
.blackout-diagram__fabric { fill: #7b8e78; }
.blackout-diagram__fabric-line { fill: none; stroke: #64785f; stroke-width: 1; }
.blackout-diagram__treatment { fill: var(--research-deep); }

.blackout-diagram__legend {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  font-size: .75rem;
  line-height: 1.5;
}

.blackout-diagram__legend > span {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.blackout-diagram__key {
  display: inline-block;
  width: .75rem;
  height: .75rem;
  flex: 0 0 auto;
  border-radius: 2px;
}

.blackout-diagram__key--light { background: var(--brass-lift); }
.blackout-diagram__key--fabric { background: #7b8e78; }
.blackout-diagram__key--treatment { background: var(--research-deep); }

.blackout-diagram figcaption {
  margin-top: .9rem;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--ink-3);
  text-align: left;
}

.blackout-verdict {
  padding: clamp(1.15rem, 3vw, 1.6rem);
  border-left: 4px solid var(--research);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--sage-soft);
  color: var(--ink-2);
}

.blackout-verdict > :first-child { margin-top: 0; }
.blackout-verdict > :last-child { margin-bottom: 0; }

@media (min-width: 640px) {
  .blackout-diagram__panels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}