.proof-viewport {
  padding: 22px 20px 104px 22px;
}

.proof-wall {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 22px;
  column-count: auto;
  column-gap: 0;
}

.proof-column {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 10px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 82% 0%, rgba(255, 153, 52, .13), transparent 150px),
    linear-gradient(180deg, #e8e3da 0%, #d8d2c9 100%);
  box-shadow:
    0 18px 46px rgba(0, 0, 0, .2),
    inset 0 0 0 1px rgba(255, 255, 255, .46),
    inset 0 -1px 0 rgba(22, 24, 27, .08);
}

.proof-track-head {
  min-height: 62px;
  position: sticky;
  z-index: 2;
  top: -12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px 11px;
  border-radius: 16px;
  color: #161719;
  background: rgba(239, 235, 227, .94);
  box-shadow:
    0 8px 24px rgba(25, 25, 22, .1),
    inset 0 0 0 1px rgba(255, 255, 255, .38),
    inset 0 -1px 0 rgba(44, 36, 27, .08);
  backdrop-filter: blur(14px);
}

.proof-track-title {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 9px;
}

.proof-track-title i {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--amber), var(--orange));
  box-shadow: 0 0 0 5px rgba(255, 132, 28, .11), 0 0 18px rgba(255, 112, 10, .3);
}

.proof-track-title span {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 2px;
  white-space: nowrap;
}

.proof-track-title b {
  color: #1b1c1f;
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: .12em;
}

.proof-track-title small {
  color: #8c8983;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: .08em;
}

.proof-track-count {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 8px;
  color: #5f5c56;
  background: #ded8cf;
  box-shadow: inset 0 0 0 1px rgba(31, 30, 27, .055);
  font-size: 9px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.proof-column .proof-card {
  width: 100%;
  margin: 0;
  border-radius: 16px;
  color: #191a1d;
  background: #ebe6de;
  box-shadow:
    0 10px 28px rgba(31, 29, 24, .1),
    0 2px 7px rgba(31, 29, 24, .06),
    inset 0 0 0 1px rgba(24, 25, 27, .065);
  transition-property: transform, box-shadow;
  transition-duration: 180ms;
  transition-timing-function: cubic-bezier(.2, 0, 0, 1);
}

.proof-column .proof-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 18px 38px rgba(31, 29, 24, .14),
    0 3px 9px rgba(31, 29, 24, .07),
    inset 0 0 0 1px rgba(255, 125, 18, .18);
}

.proof-column .proof-image-button {
  min-height: 40px;
  overflow: hidden;
  border-radius: 16px 16px 0 0;
  background: #dcd6cd;
}

.proof-column .proof-card img {
  outline-color: rgba(0, 0, 0, .1);
  transition-property: filter, opacity, transform;
  transition-duration: 180ms;
  transition-timing-function: cubic-bezier(.2, 0, 0, 1);
}

.proof-column .proof-image-button:hover img {
  filter: brightness(1.025);
  transform: scale(1.008);
}

.proof-column .proof-card figcaption {
  gap: 4px;
  padding: 11px 14px 12px;
  background: linear-gradient(180deg, #eeeae3 0%, #e7e1d8 100%);
}

.proof-column .proof-card figcaption b {
  color: #1c1d20;
  font-size: 14px;
  line-height: 1.3;
  text-wrap: balance;
}

.proof-column .proof-card figcaption > span:not(.proof-card-meta) {
  color: #77736d;
  font-size: 10.5px;
  line-height: 1.45;
  text-wrap: pretty;
}

.proof-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 0;
}

.proof-card-meta small {
  color: #a09b93;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: .1em;
  font-variant-numeric: tabular-nums;
}

.proof-card-meta em {
  min-height: 20px;
  display: inline-flex;
  align-items: center;
  padding: 0 7px;
  border-radius: 6px;
  color: #7a3b08;
  background: #f6e3ca;
  box-shadow: inset 0 0 0 1px rgba(255, 121, 17, .12);
  font-size: 8px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .04em;
}

.proof-column:nth-child(2) .proof-track-title i {
  background: linear-gradient(135deg, #ffd461, #ff922c);
}

.proof-column:nth-child(3) .proof-track-title i {
  background: linear-gradient(135deg, #ffb06d, #ff6508);
}

@media (max-width: 980px) {
  .proof-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
}

@media (max-width: 760px) {
  .proof-viewport { padding: 10px 9px 86px 10px; }
  .proof-wall { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .proof-column { gap: 14px; padding: 8px; border-radius: 22px; }
  .proof-track-head { min-height: 56px; top: -2px; border-radius: 14px; }
  .proof-column .proof-card { border-radius: 14px; }
  .proof-column .proof-image-button { border-radius: 14px 14px 0 0; }
}

@media (prefers-reduced-motion: reduce) {
  .proof-column .proof-card,
  .proof-column .proof-card img { transition-duration: 0.01ms; }
}