/* ==========================================================================
   UNICUS MARKETING — CASE STUDY LIBRARY
   File: /assets/css/case-studies.css
   Version: 4.1
   ==========================================================================

   Page-specific styles only. Shared site structure, header, footer, buttons,
   fonts, colors, containers, and behavior remain in global.css.
   ========================================================================== */

.page-case-studies {
  --csl-paper: #e6e3da;
  --csl-paper-alt: #ddd9cf;
  --csl-ink: #1b1b1a;
  --csl-copy: #4d4b46;
  --csl-muted: #716e67;
  --csl-rule: rgba(27, 27, 26, .2);
  --csl-dark-rule: rgba(255, 255, 255, .14);
  background: var(--black);
  color: var(--white);
}

.page-case-studies .csl-page {
  overflow: hidden;
}

.page-case-studies .csl-wrap {
  width: min(var(--site-max), calc(100% - (var(--site-gutter) * 2)));
  margin-inline: auto;
}

.page-case-studies .csl-eyebrow,
.page-case-studies .csl-hero-reference,
.page-case-studies .csl-library-facts dt,
.page-case-studies .csl-card-classification,
.page-case-studies .csl-card-number,
.page-case-studies .csl-card-footer p span,
.page-case-studies .csl-record-link {
  font-family: var(--font-body);
  font-size: .69rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.page-case-studies h1,
.page-case-studies h2,
.page-case-studies h3,
.page-case-studies p,
.page-case-studies dl {
  margin-top: 0;
}

.page-case-studies .csl-hero {
  padding: 154px 0 78px;
  background:
    linear-gradient(90deg, transparent 0, transparent calc(50% - 1px), rgba(255, 255, 255, .025) 50%, transparent calc(50% + 1px)),
    #0c0c0c;
  border-bottom: 1px solid var(--csl-dark-rule);
}

.page-case-studies .csl-hero-reference {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 14px;
  color: rgba(var(--white-rgb), .42);
  border-bottom: 1px solid var(--csl-dark-rule);
}

.page-case-studies .csl-hero-reference span:last-child {
  color: var(--primary);
}

.page-case-studies .csl-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(360px, .65fr);
  gap: 90px;
  align-items: end;
  padding-top: 66px;
}

.page-case-studies .csl-eyebrow {
  margin-bottom: 15px;
  color: var(--primary);
}

.page-case-studies .csl-hero h1 {
  margin-bottom: 0;
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(4rem, 7vw, 7.25rem);
  font-weight: 400;
  line-height: .88;
  letter-spacing: .01em;
  text-transform: uppercase;
}

.page-case-studies .csl-hero h1 span {
  color: rgba(var(--white-rgb), .42);
}

.page-case-studies .csl-hero-copy > p {
  margin-bottom: 34px;
  color: rgba(var(--white-rgb), .68);
  font-size: .98rem;
  line-height: 1.78;
}

.page-case-studies .csl-library-facts {
  margin-bottom: 0;
  border-top: 1px solid rgba(var(--primary-rgb), .65);
}

.page-case-studies .csl-library-facts div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid var(--csl-dark-rule);
}

.page-case-studies .csl-library-facts dt {
  color: rgba(var(--white-rgb), .4);
}

.page-case-studies .csl-library-facts dd {
  margin: 0;
  color: rgba(var(--white-rgb), .84);
  font-size: .8rem;
  font-weight: 500;
  line-height: 1.5;
}

.page-case-studies .csl-library {
  padding: 92px 0 112px;
  color: var(--csl-ink);
  background:
    linear-gradient(90deg, rgba(27, 27, 26, .045) 1px, transparent 1px) 0 0 / 8.333% 100%,
    var(--csl-paper);
}

.page-case-studies .csl-library-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .55fr);
  gap: 80px;
  align-items: end;
  margin-bottom: 58px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--csl-rule);
}

.page-case-studies .csl-library-heading h2 {
  max-width: 820px;
  margin-bottom: 0;
  color: var(--csl-ink);
  font-family: var(--font-body);
  font-size: clamp(2rem, 3.2vw, 3.35rem);
  font-weight: 550;
  line-height: 1.08;
  letter-spacing: -.04em;
  text-transform: none;
}

.page-case-studies .csl-library-heading > p {
  margin-bottom: 0;
  color: var(--csl-copy);
  font-size: .92rem;
  line-height: 1.75;
}

.page-case-studies .csl-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 54px 34px;
}

.page-case-studies .csl-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border-top: 2px solid var(--csl-ink);
}

.page-case-studies .csl-card-image {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 8.7;
  color: inherit;
  background: #2a2a28;
  border-right: 1px solid var(--csl-rule);
  border-bottom: 1px solid var(--csl-rule);
  border-left: 1px solid var(--csl-rule);
}

.page-case-studies .csl-card-image::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, .06), rgba(0, 0, 0, .32)),
    linear-gradient(90deg, rgba(var(--primary-rgb), .08), transparent 35%);
}

.page-case-studies .csl-card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(.92) brightness(.78);
  transition: filter .35s ease, transform .55s ease;
}

.page-case-studies .csl-card-image:hover img,
.page-case-studies .csl-card-image:focus-visible img {
  filter: grayscale(55%) contrast(.96) brightness(.84);
  transform: scale(1.018);
}

.page-case-studies .csl-card-number {
  position: absolute;
  z-index: 1;
  top: 16px;
  right: 16px;
  padding: 8px 10px 7px;
  color: rgba(var(--white-rgb), .82);
  background: rgba(10, 10, 10, .82);
  border: 1px solid rgba(255, 255, 255, .18);
}

.page-case-studies .csl-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 24px 2px 0;
}

.page-case-studies .csl-card-classification {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  color: var(--csl-muted);
}

.page-case-studies .csl-card-classification span:first-child {
  color: var(--primary-dark);
}

.page-case-studies .csl-card-classification span:last-child {
  text-align: right;
}

.page-case-studies .csl-card h3 {
  margin-bottom: 14px;
  color: var(--csl-ink);
  font-family: var(--font-body);
  font-size: clamp(1.55rem, 2.3vw, 2.25rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.035em;
  text-transform: none;
}

.page-case-studies .csl-card h3 a {
  color: inherit;
  text-decoration: none;
}

.page-case-studies .csl-card h3 a:hover,
.page-case-studies .csl-card h3 a:focus-visible {
  color: var(--primary-dark);
}

.page-case-studies .csl-card-body > p {
  max-width: 610px;
  margin-bottom: 28px;
  color: var(--csl-copy);
  font-size: .91rem;
  line-height: 1.75;
}

.page-case-studies .csl-card-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-top: auto;
  padding-top: 17px;
  border-top: 1px solid var(--csl-rule);
}

.page-case-studies .csl-card-footer p {
  margin-bottom: 0;
}

.page-case-studies .csl-card-footer p strong {
  display: block;
  margin-bottom: 4px;
  color: var(--csl-ink);
  font-family: var(--font-body);
  font-size: 1.18rem;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.page-case-studies .csl-card-footer p span {
  display: block;
  color: var(--csl-muted);
  font-size: .62rem;
}

.page-case-studies .csl-record-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding-bottom: 3px;
  color: var(--csl-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--primary);
  transition: color .2s ease, border-color .2s ease;
}

.page-case-studies .csl-record-link:hover,
.page-case-studies .csl-record-link:focus-visible {
  color: var(--primary-dark);
  border-color: var(--csl-ink);
}

.page-case-studies .csl-close {
  padding: 74px 0 78px;
  background: #0c0c0c;
  border-top: 1px solid var(--csl-dark-rule);
}

.page-case-studies .csl-close-grid {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) auto;
  gap: 50px;
  align-items: center;
}

.page-case-studies .csl-close .csl-eyebrow {
  margin-bottom: 0;
}

.page-case-studies .csl-close h2 {
  max-width: 760px;
  margin-bottom: 13px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: clamp(1.65rem, 2.7vw, 2.75rem);
  font-weight: 550;
  line-height: 1.13;
  letter-spacing: -.035em;
  text-transform: none;
}

.page-case-studies .csl-close div > p {
  max-width: 720px;
  margin-bottom: 0;
  color: rgba(var(--white-rgb), .58);
  font-size: .9rem;
  line-height: 1.75;
}

@media (max-width: 1100px) {
  .page-case-studies .csl-hero-grid,
  .page-case-studies .csl-library-heading {
    gap: 50px;
  }

  .page-case-studies .csl-grid {
    gap: 48px 26px;
  }

  .page-case-studies .csl-card-classification {
    display: block;
  }

  .page-case-studies .csl-card-classification span {
    display: block;
  }

  .page-case-studies .csl-card-classification span + span {
    margin-top: 5px;
  }

  .page-case-studies .csl-card-classification span:last-child {
    text-align: left;
  }

  .page-case-studies .csl-close-grid {
    grid-template-columns: 140px minmax(0, 1fr);
  }

  .page-case-studies .csl-close .btn-outline {
    grid-column: 2;
    justify-self: start;
  }
}

@media (max-width: 820px) {
  .page-case-studies .csl-wrap {
    width: calc(100% - (var(--site-gutter-tablet) * 2));
  }

  .page-case-studies .csl-hero {
    padding: 130px 0 62px;
  }

  .page-case-studies .csl-hero-grid,
  .page-case-studies .csl-library-heading {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .page-case-studies .csl-hero h1 {
    font-size: clamp(4.5rem, 14vw, 7rem);
  }

  .page-case-studies .csl-hero-copy {
    max-width: 620px;
  }

  .page-case-studies .csl-library {
    padding: 72px 0 88px;
  }

  .page-case-studies .csl-grid {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .page-case-studies .csl-card h3 {
    font-size: clamp(1.8rem, 5vw, 2.35rem);
  }
}

@media (max-width: 560px) {
  .page-case-studies .csl-wrap {
    width: calc(100% - (var(--site-gutter-mobile) * 2));
  }

  .page-case-studies .csl-hero {
    padding: 112px 0 52px;
  }

  .page-case-studies .csl-hero-reference {
    display: block;
  }

  .page-case-studies .csl-hero-reference span {
    display: block;
  }

  .page-case-studies .csl-hero-reference span + span {
    margin-top: 5px;
  }

  .page-case-studies .csl-hero-grid {
    gap: 30px;
    padding-top: 42px;
  }

  .page-case-studies .csl-hero h1 {
    font-size: clamp(3.8rem, 19vw, 5.5rem);
  }

  .page-case-studies .csl-library {
    padding: 58px 0 72px;
  }

  .page-case-studies .csl-library-heading {
    margin-bottom: 42px;
  }

  .page-case-studies .csl-library-heading h2 {
    font-size: 2rem;
  }

  .page-case-studies .csl-card-image {
    aspect-ratio: 4 / 3;
  }

  .page-case-studies .csl-card-footer {
    display: block;
  }

  .page-case-studies .csl-record-link {
    margin-top: 18px;
  }

  .page-case-studies .csl-close {
    padding: 58px 0 62px;
  }

  .page-case-studies .csl-close-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .page-case-studies .csl-close .btn-outline {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-case-studies .csl-card-image img {
    transition: none;
  }
}