/* ============================================================
   06 · COMPONENTS · Case study
   Featured cell inside the bento with chart, deltas and CTA.
   ============================================================ */

.c-case-study {
  grid-column: span 6;
  background: linear-gradient(180deg, rgba(30, 94, 213, 0.18), rgba(30, 94, 213, 0)), var(--surface);
  border-color: var(--accent);
  padding: 36px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: stretch;
}

@media (max-width: 900px) {
  .c-case-study {
    grid-template-columns: 1fr;
    padding: 24px;
  }
}

.c-case-study__head {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.c-case-study__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-accent);
  background: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
}

.c-case-study__tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.c-case-study__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -0.03em;
  line-height: 1.04;
}

.c-case-study__sub {
  color: var(--text-2);
  font-size: 15px;
  max-width: 38ch;
}

.c-case-study__deltas {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.c-case-study__delta-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--accent-deep);
  letter-spacing: -0.02em;
}

.c-case-study__delta-label {
  font-size: 11.5px;
  color: var(--text-3);
}

.c-case-study__cta {
  margin-top: 8px;
  align-self: flex-start;
}

.c-case-study__chart {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-2);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 260px;
}

.c-case-study__chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.c-case-study__metric {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 32px;
  color: var(--accent-deep);
  letter-spacing: -0.03em;
  line-height: 1;
}

.c-case-study__metric-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-top: 4px;
  text-transform: uppercase;
}

.c-case-study__chart svg {
  width: 100%;
  flex: 1;
}

.c-case-study__line {
  fill: none;
  stroke: var(--accent-deep);
  stroke-width: 2.4;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  transition: stroke-dashoffset 1600ms cubic-bezier(0.4, 0, 0.2, 1);
}

.c-case-study__chart.is-in .c-case-study__line { stroke-dashoffset: 0; }

.c-case-study__area {
  fill: url(#ch-lime-grad);
  opacity: 0;
  transition: opacity 800ms 800ms ease;
}

.c-case-study__chart.is-in .c-case-study__area { opacity: 0.8; }

.c-case-study__grid line { stroke: rgba(10, 10, 15, 0.06); }