/* ==========================================================================
   Problem – dunkel, streng, horizontale Diagnose
   ========================================================================== */

.problem {
  /* gleicher Abstand: letzte Diagnose-Linie → Statement und CTA → nächste Section */
  --problem-gap: clamp(7rem, 4rem + 10vw, 12rem);
  position: relative;
  overflow-x: clip;
  background: var(--c-dark);
  padding-block: clamp(5rem, 3rem + 8vw, 10rem) var(--problem-gap);
}

.problem__title {
  max-width: 13.5em;
  margin-top: 1.75rem;
}

.problem__lead {
  margin-top: clamp(3.5rem, 2rem + 5vw, 6rem);
  margin-left: auto;
  max-width: 36rem;
  color: rgb(245 243 238 / 0.74);
}

/* ---------- Diagnose-Zeilen ---------- */

.diagnosis {
  margin-top: clamp(3.5rem, 2rem + 5vw, 6rem);
  border-bottom: 1px solid rgb(245 243 238 / 0.12);
}

.diagnosis__row {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(4rem, 0.5fr) minmax(0, 2.2fr) minmax(0, 3fr) 3rem;
  align-items: baseline;
  gap: 1.5rem;
  padding: clamp(1.75rem, 1.2rem + 1.2vw, 2.6rem) clamp(0.5rem, 1.5vw, 1.5rem);
  border-top: 1px solid rgb(245 243 238 / 0.12);
  overflow: clip;
  overflow-clip-margin: 2px;
  transition: background-color 0.45s ease;
}

/* weicher Bronze-/Champagne-Glow links */
.diagnosis__row::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(38% 120% at 0% 50%, rgb(197 154 118 / 0.13), rgb(197 154 118 / 0) 70%);
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

/* Lichtimpuls entlang der oberen Kante beim Eintreten */
.diagnosis__row::after {
  content: "";
  position: absolute;
  left: 0; top: -1px;
  width: 38%;
  height: 1px;
  background: linear-gradient(90deg, rgb(197 154 118 / 0), var(--c-champagne) 60%, var(--c-glow) 85%, rgb(230 199 168 / 0));
  opacity: 0;
  transform: translateX(-100%);
  pointer-events: none;
}
.diagnosis__row.is-lit::after {
  animation: edge-light 1.8s var(--ease-in-out) forwards;
}
@keyframes edge-light {
  0% { opacity: 0; transform: translateX(-40%); }
  20% { opacity: 1; }
  100% { opacity: 0; transform: translateX(270%); }
}

.diagnosis__num {
  font-size: 0.8125rem;
  font-weight: 450;
  font-stretch: 115%;
  letter-spacing: 0.16em;
  color: var(--c-muted);
  font-variant-numeric: tabular-nums;
  transition: color 0.35s ease;
}

.diagnosis__title {
  font-size: clamp(1.25rem, 1rem + 0.9vw, 1.875rem);
  font-weight: 450;
  font-stretch: 94%;
  line-height: 1.2;
  letter-spacing: -0.012em;
}

.diagnosis__text {
  max-width: 34rem;
  color: rgb(245 243 238 / 0.66);
  text-wrap: pretty;
}

.diagnosis__mark {
  justify-self: end;
  align-self: center;
  width: 2rem;
  height: 1px;
  background: var(--c-muted);
  transform-origin: left;
  transition: transform 0.45s var(--ease-out), background-color 0.35s ease;
}

@media (hover: hover) and (pointer: fine) {
  .diagnosis__row:hover { background-color: var(--c-soft-dark); }
  .diagnosis__row:hover::before { opacity: 1; }
  .diagnosis__row:hover .diagnosis__num { color: var(--c-champagne); }
  .diagnosis__row:hover .diagnosis__mark {
    background: var(--c-champagne);
    transform: translateX(10px);
  }
}

/* ---------- Abschluss-Statement ---------- */

.problem__close {
  margin-top: var(--problem-gap);
}

.problem__statement {
  font-size: clamp(2.25rem, 1rem + 4.2vw, 5.25rem);
  font-weight: 450;
  font-stretch: 92%;
  line-height: 1.04;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
/* Leerraum über den Versalien ausgleichen, damit der Abstand bis zur sichtbaren Schrift gemessen wird */
.problem__statement { margin-top: -0.125em; }
.problem__statement > span { display: block; }
.statement__a { color: var(--c-muted); }
.statement__b { color: var(--c-ivory); }

.problem__cta { margin-top: clamp(2.5rem, 2rem + 2vw, 3.5rem); }

@media (max-width: 860px) {
  .problem__lead { margin-left: 0; }
  .diagnosis__row {
    grid-template-columns: 2.75rem minmax(0, 1fr);
    gap: 0.6rem 1rem;
    padding-inline: 0;
  }
  .diagnosis__text { grid-column: 2; }
  .diagnosis__mark { display: none; }
}