/* Client marks retain their original outlines, in one white treatment. */
.dark-theme .client-mark.logo-transparent,
.dark-theme .brand-tile:hover .client-mark.logo-transparent {
  filter: brightness(0) invert(1);
  mix-blend-mode: normal;
  opacity: 1;
}

.dark-theme .client-mark.logo-paper,
.dark-theme .brand-tile:hover .client-mark.logo-paper {
  filter: grayscale(1) contrast(2) invert(1) brightness(4);
  mix-blend-mode: screen;
  opacity: 1;
}

.dark-theme .partnerships-section {
  background: radial-gradient(ellipse at 85% 10%, #142b5d55, transparent 55%), #050d20;
}

.partnership-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.partnership-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 30px;
  border: 1px solid #294a75;
  border-radius: 12px;
  background: linear-gradient(130deg, #07162e, #0b1b3b 65%, #132850);
  box-shadow: inset 0 1px 0 #adceff0a;
  transition: border-color .3s, box-shadow .3s;
}

.partnership-card:nth-child(3n + 2) {
  background: linear-gradient(130deg, #08162e, #101b3b 68%, #22294c);
}

.partnership-card:nth-child(3n) {
  background: linear-gradient(130deg, #07152b, #0b203b 68%, #0d3445);
}

.partnership-card::before {
  content: "";
  position: absolute;
  z-index: -1;
  pointer-events: none;
  width: 135%;
  height: 145%;
  left: -65%;
  top: -106%;
  border: 1px solid #69afff4d;
  border-radius: 50%;
  transform: rotate(32deg);
  box-shadow: 10px 9px 28px #2868bc1c;
}

.partnership-card:hover {
  border-color: #6086bd;
  box-shadow: inset 0 1px 0 #d9e7ff12, 0 8px 26px #00133155;
}

.partnership-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 46px;
  margin-bottom: 18px;
}

.partnership-card .client-mark {
  width: 164px;
  max-width: 77%;
  height: 46px;
  object-position: left center;
}

.partnership-card-number {
  color: #7893b8;
  font-size: 11px;
  letter-spacing: .08em;
}

.dark-theme .partnership-card h3 {
  margin: 0;
  font-size: 21px;
  font-weight: 550;
  color: #eef4ff;
}

.partnership-period {
  margin: 26px 0 28px;
}

.partnership-period > span {
  color: #91a9c9;
  font-size: 11px;
  letter-spacing: .08em;
}

.dark-theme .partnership-period p {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin: 8px 0 0;
  font-size: clamp(24px, 2.3vw, 32px);
  line-height: 1.3;
  font-weight: 400;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: #cee4ff;
}

.partnership-period-dash {
  font-size: 22px;
  font-weight: 300;
  color: #7099c8;
}

.partnership-period > small {
  display: inline-block;
  margin-top: 8px;
  font-size: 11px;
  color: #a8c6ec;
}

.partnership-card-scope {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid #6e9bd42b;
}

.dark-theme .partnership-card-scope h4 {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.5;
  font-weight: 500;
  color: #d7e6fa;
}

.partnership-card-scope ul {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.partnership-card-scope li {
  padding: 3px 8px;
  border-radius: 4px;
  background: #80b3ff0c;
  color: #a8bddb;
  font-size: 11px;
  line-height: 1.65;
}

.partnerships-section .source-note {
  margin-top: 24px;
}

@media (max-width: 1000px) {
  .partnership-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
  .partnership-card {
    padding: 26px;
  }
  .dark-theme .partnership-period p {
    font-size: 29px;
  }
}

@media (max-width: 600px) {
  .partnership-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }
  .partnership-card {
    padding: 26px;
  }
  .partnership-card-top {
    margin-bottom: 14px;
  }
  .partnership-period {
    margin: 22px 0;
  }
  .dark-theme .partnership-period p {
    font-size: 30px;
  }
  .partnership-card-scope li {
    font-size: 12px;
  }
  .dark-theme .partnerships-section .partnership-heading h2 {
    font-size: 27px;
  }
  .partnerships-section .partnership-stat b {
    font-size: 50px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .partnership-card {
    transition: none;
  }
}