/* ==========================================================================
   UNICUS MARKETING — CASE STUDY DETAIL PAGE
   File: /assets/css/case-study-tubilab.css
   Version: 1.0 — TubiLab Mobile Testing detail page
   ==========================================================================

   Page-specific styles only. Global header, footer, buttons, typefaces,
   colors, containers, and shared behavior remain in global.css.
   ========================================================================== */

.page-case-study-detail {
  --cs-paper: #e7e4dc;
  --cs-paper-alt: #dedbd2;
  --cs-ink: #1c1c1b;
  --cs-copy: #4d4c48;
  --cs-muted: #77746d;
  --cs-rule: rgba(28, 28, 27, .18);
  --cs-rule-dark: rgba(255, 255, 255, .16);
  --cs-grid: rgba(28, 28, 27, .055);
  --cs-accent: var(--primary);
  background: var(--black);
  color: var(--white);
}

.page-case-study-detail .cs-page {
  overflow: hidden;
}

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

.page-case-study-detail .cs-kicker,
.page-case-study-detail .cs-section-index,
.page-case-study-detail .cs-record-line,
.page-case-study-detail .cs-fact-sheet dt,
.page-case-study-detail .cs-key-finding > span,
.page-case-study-detail .cs-side-note > span,
.page-case-study-detail .cs-analysis-note > span,
.page-case-study-detail .cs-drawing-note,
.page-case-study-detail .cs-record-footer span {
  font-family: var(--font-body);
  font-size: .68rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.page-case-study-detail h1,
.page-case-study-detail h2,
.page-case-study-detail h3,
.page-case-study-detail p,
.page-case-study-detail figure,
.page-case-study-detail dl,
.page-case-study-detail ol {
  margin-top: 0;
}

.page-case-study-detail h1,
.page-case-study-detail h2,
.page-case-study-detail h3 {
  font-family: var(--font-body);
  text-transform: none;
}

.page-case-study-detail .cs-cover {
  padding: 156px 0 72px;
  background: #0d0d0d;
  border-bottom: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  margin-bottom: 28px;
  color: rgba(var(--white-rgb), .44);
  font-family: var(--font-body);
  font-size: .68rem;
  font-weight: 650;
  line-height: 1.45;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.page-case-study-detail .cs-breadcrumb a {
  color: rgba(var(--white-rgb), .72);
  text-decoration: none;
  transition: color .2s ease;
}

.page-case-study-detail .cs-breadcrumb a:hover,
.page-case-study-detail .cs-breadcrumb a:focus-visible {
  color: var(--cs-accent);
}

.page-case-study-detail .cs-record-line {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 14px;
  color: rgba(var(--white-rgb), .46);
  border-bottom: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-record-line span:last-child {
  color: var(--cs-accent);
}

.page-case-study-detail .cs-cover-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, .55fr);
  gap: 80px;
  align-items: end;
  padding: 56px 0 58px;
}

.page-case-study-detail .cs-cover-copy {
  max-width: 810px;
}

.page-case-study-detail .cs-kicker {
  margin-bottom: 17px;
  color: var(--cs-accent);
}

.page-case-study-detail .cs-cover h1 {
  margin-bottom: 22px;
  color: var(--white);
  font-size: clamp(3.25rem, 5vw, 5.25rem);
  font-weight: 500;
  line-height: .98;
  letter-spacing: -.045em;
}

.page-case-study-detail .cs-lead {
  max-width: 720px;
  margin-bottom: 0;
  color: rgba(var(--white-rgb), .68);
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  line-height: 1.7;
}

.page-case-study-detail .cs-fact-sheet {
  margin-bottom: 0;
  border-top: 1px solid rgba(var(--primary-rgb), .7);
}

.page-case-study-detail .cs-fact-sheet div {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-fact-sheet dt {
  color: rgba(var(--white-rgb), .42);
}

.page-case-study-detail .cs-fact-sheet dd {
  margin: 0;
  color: rgba(var(--white-rgb), .84);
  font-size: .78rem;
  font-weight: 500;
  line-height: 1.5;
}

.page-case-study-detail .cs-cover-figure {
  margin-bottom: 0;
  border: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-cover-figure img {
  display: block;
  width: 100%;
  height: clamp(280px, 38vw, 520px);
  object-fit: cover;
  filter: grayscale(100%) contrast(.9) brightness(.72);
}

.page-case-study-detail .cs-cover-figure figcaption {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 13px;
  color: rgba(var(--white-rgb), .42);
  font-size: .62rem;
  line-height: 1.45;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-top: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-record {
  color: var(--cs-ink);
  background:
    linear-gradient(90deg, var(--cs-grid) 1px, transparent 1px) 0 0 / 8.333% 100%,
    var(--cs-paper);
}

.page-case-study-detail .cs-record-section {
  padding: 82px 0 88px;
  border-bottom: 1px solid var(--cs-rule);
}

.page-case-study-detail .cs-record-section:nth-child(even) {
  background: rgba(255, 255, 255, .16);
}

.page-case-study-detail .cs-record-grid {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 240px;
  gap: 46px;
  align-items: start;
}

.page-case-study-detail .cs-section-index {
  padding-top: 3px;
  color: var(--cs-muted);
}

.page-case-study-detail .cs-section-index span {
  display: block;
  margin-bottom: 7px;
  color: var(--cs-accent);
}

.page-case-study-detail .cs-section-index p {
  margin-bottom: 0;
  font: inherit;
}

.page-case-study-detail .cs-section-main-wide {
  grid-column: 2 / 4;
}

.page-case-study-detail .cs-section-main h2 {
  max-width: 850px;
  margin-bottom: 26px;
  color: var(--cs-ink);
  font-size: clamp(1.75rem, 2.6vw, 2.65rem);
  font-weight: 550;
  line-height: 1.18;
  letter-spacing: -.035em;
}

.page-case-study-detail .cs-section-main > p,
.page-case-study-detail .cs-two-column-copy p {
  color: var(--cs-copy);
  font-size: .96rem;
  line-height: 1.8;
}

.page-case-study-detail .cs-section-main > p {
  max-width: 770px;
}

.page-case-study-detail .cs-two-column-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 38px;
}

.page-case-study-detail .cs-two-column-copy p {
  margin-bottom: 0;
}

.page-case-study-detail .cs-key-finding,
.page-case-study-detail .cs-side-note,
.page-case-study-detail .cs-analysis-note {
  padding: 17px 0 0 20px;
  border-top: 2px solid var(--cs-ink);
  border-left: 1px solid var(--cs-rule);
}

.page-case-study-detail .cs-key-finding > span,
.page-case-study-detail .cs-side-note > span,
.page-case-study-detail .cs-analysis-note > span {
  display: block;
  margin-bottom: 18px;
  color: var(--cs-muted);
}

.page-case-study-detail .cs-key-finding strong {
  display: block;
  margin-bottom: 7px;
  color: var(--cs-ink);
  font-family: var(--font-body);
  font-size: 2.65rem;
  font-weight: 550;
  line-height: 1;
  letter-spacing: -.05em;
}

.page-case-study-detail .cs-key-finding p,
.page-case-study-detail .cs-side-note p,
.page-case-study-detail .cs-analysis-note p {
  margin-bottom: 0;
  color: var(--cs-copy);
  font-size: .78rem;
  line-height: 1.7;
}

.page-case-study-detail .cs-intro {
  max-width: 800px;
  margin-bottom: 38px;
}

.page-case-study-detail .cs-requirement-register {
  margin-bottom: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--cs-ink);
}

.page-case-study-detail .cs-requirement-register li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--cs-rule);
}

.page-case-study-detail .cs-requirement-register > li > span,
.page-case-study-detail .cs-system-map article > span {
  color: var(--cs-accent);
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .1em;
}

.page-case-study-detail .cs-requirement-register h3,
.page-case-study-detail .cs-system-map h3,
.page-case-study-detail .cs-sequence h3 {
  margin-bottom: 5px;
  color: var(--cs-ink);
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-case-study-detail .cs-requirement-register p,
.page-case-study-detail .cs-system-map p,
.page-case-study-detail .cs-sequence p {
  margin-bottom: 0;
  color: var(--cs-copy);
  font-size: .8rem;
  line-height: 1.65;
}

.page-case-study-detail .cs-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 40px;
  align-items: end;
  margin-bottom: 38px;
}

.page-case-study-detail .cs-heading-row h2,
.page-case-study-detail .cs-heading-row .cs-intro {
  margin-bottom: 0;
}

.page-case-study-detail .cs-heading-row .cs-intro {
  margin-top: 18px;
}

.page-case-study-detail .cs-drawing-note {
  margin-bottom: 3px;
  color: var(--cs-muted);
  text-align: right;
}

.page-case-study-detail .cs-system-map {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-bottom: 0;
  border: 1px solid var(--cs-ink);
  background: rgba(255, 255, 255, .08);
}

.page-case-study-detail .cs-system-map article {
  position: relative;
  min-height: 220px;
  padding: 20px 18px;
  border-right: 1px solid var(--cs-rule);
}

.page-case-study-detail .cs-system-map article:last-child {
  border-right: 0;
}

.page-case-study-detail .cs-system-map article:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 48px;
  right: -5px;
  width: 9px;
  height: 9px;
  background: var(--cs-paper);
  border-top: 1px solid var(--cs-ink);
  border-right: 1px solid var(--cs-ink);
  transform: rotate(45deg);
}

.page-case-study-detail .cs-system-map h3 {
  margin-top: 34px;
}

.page-case-study-detail .cs-matrix {
  margin-top: 38px;
  border-top: 1px solid var(--cs-ink);
  border-bottom: 1px solid var(--cs-ink);
}

.page-case-study-detail .cs-matrix-row {
  display: grid;
  grid-template-columns: 1fr 1.45fr 1.2fr;
  border-bottom: 1px solid var(--cs-rule);
}

.page-case-study-detail .cs-matrix-row:last-child {
  border-bottom: 0;
}

.page-case-study-detail .cs-matrix-row > div {
  padding: 16px 18px;
  color: var(--cs-copy);
  font-size: .75rem;
  line-height: 1.65;
  border-right: 1px solid var(--cs-rule);
}

.page-case-study-detail .cs-matrix-row > div:last-child {
  border-right: 0;
}

.page-case-study-detail .cs-matrix-row > div:first-child {
  color: var(--cs-ink);
  font-weight: 650;
}

.page-case-study-detail .cs-matrix-row > div:first-child span {
  display: inline-block;
  width: 32px;
  color: var(--cs-accent);
  font-size: .63rem;
  letter-spacing: .08em;
}

.page-case-study-detail .cs-matrix-head {
  background: var(--cs-ink);
}

.page-case-study-detail .cs-matrix-head > div,
.page-case-study-detail .cs-matrix-head > div:first-child {
  color: rgba(var(--white-rgb), .72);
  font-size: .63rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-right-color: rgba(var(--white-rgb), .16);
}

.page-case-study-detail .cs-sequence {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
  border-top: 1px solid var(--cs-ink);
}

.page-case-study-detail .cs-sequence li {
  position: relative;
  padding: 20px 24px 0 0;
}

.page-case-study-detail .cs-sequence li::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--cs-accent);
}

.page-case-study-detail .cs-sequence li::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 7px;
  right: 0;
  height: 1px;
  background: var(--cs-ink);
}

.page-case-study-detail .cs-sequence li:last-child::after {
  display: none;
}

.page-case-study-detail .cs-sequence > li > span {
  display: block;
  margin-bottom: 22px;
  color: var(--cs-muted);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .1em;
}

.page-case-study-detail .cs-outcome-register {
  margin: 38px 0 0;
  border-top: 1px solid var(--cs-ink);
}

.page-case-study-detail .cs-outcome-register div {
  display: grid;
  grid-template-columns: 1fr .65fr 1.6fr;
  gap: 28px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--cs-rule);
}

.page-case-study-detail .cs-outcome-register dt {
  color: var(--cs-ink);
  font-size: .8rem;
  font-weight: 700;
}

.page-case-study-detail .cs-outcome-register dd {
  margin: 0;
  color: var(--cs-ink);
  font-size: 1.25rem;
  font-weight: 650;
  letter-spacing: -.025em;
}

.page-case-study-detail .cs-outcome-register p {
  margin-bottom: 0;
  color: var(--cs-copy);
  font-size: .76rem;
  line-height: 1.6;
}

.page-case-study-detail .cs-conclusion {
  background: var(--cs-paper-alt);
}

.page-case-study-detail .cs-conclusion .cs-section-main > p {
  margin-bottom: 0;
}

.page-case-study-detail .cs-record-footer {
  padding: 34px 0;
  color: var(--white);
  background: #111;
  border-bottom: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-record-footer .cs-wrap {
  display: block;
}

.page-case-study-detail .cs-case-navigation {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 32px;
  border-top: 1px solid var(--cs-rule-dark);
  border-bottom: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-case-navigation > a,
.page-case-study-detail .cs-case-navigation > span {
  display: flex;
  min-height: 82px;
  padding: 18px 20px;
  flex-direction: column;
  justify-content: center;
  color: rgba(var(--white-rgb), .76);
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 650;
  line-height: 1.45;
  text-decoration: none;
  border-right: 1px solid var(--cs-rule-dark);
}

.page-case-study-detail .cs-case-navigation > :last-child {
  border-right: 0;
}

.page-case-study-detail .cs-case-navigation > a:nth-child(2) {
  align-items: center;
  text-align: center;
}

.page-case-study-detail .cs-case-navigation > a:last-child {
  align-items: flex-end;
  text-align: right;
}

.page-case-study-detail .cs-case-navigation a span,
.page-case-study-detail .cs-case-navigation > .cs-case-navigation-empty {
  color: rgba(var(--white-rgb), .34);
  font-size: .62rem;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.page-case-study-detail .cs-case-navigation a b {
  color: var(--cs-accent);
  font-weight: 500;
}

.page-case-study-detail .cs-case-navigation > a:hover,
.page-case-study-detail .cs-case-navigation > a:focus-visible {
  color: var(--cs-accent);
  background: rgba(var(--white-rgb), .025);
}

.page-case-study-detail .cs-record-footer-row {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: center;
}

.page-case-study-detail .cs-record-footer span {
  display: block;
  margin-bottom: 5px;
  color: var(--cs-accent);
}

.page-case-study-detail .cs-record-footer p {
  margin-bottom: 0;
  color: rgba(var(--white-rgb), .52);
  font-size: .76rem;
  line-height: 1.5;
}

@media (max-width: 1120px) {
  .page-case-study-detail .cs-cover-grid {
    gap: 52px;
  }

  .page-case-study-detail .cs-record-grid {
    grid-template-columns: 120px minmax(0, 1fr) 210px;
    gap: 34px;
  }

  .page-case-study-detail .cs-system-map {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-case-study-detail .cs-system-map article {
    min-height: 190px;
    border-bottom: 1px solid var(--cs-rule);
  }

  .page-case-study-detail .cs-system-map article:nth-child(3) {
    border-right: 0;
  }

  .page-case-study-detail .cs-system-map article:nth-child(3)::after {
    display: none;
  }
}

@media (max-width: 860px) {
  .page-case-study-detail .cs-cover {
    padding-top: 130px;
  }

  .page-case-study-detail .cs-cover-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 44px 0 48px;
  }

  .page-case-study-detail .cs-fact-sheet {
    max-width: none;
  }

  .page-case-study-detail .cs-record-grid {
    grid-template-columns: 110px minmax(0, 1fr);
  }

  .page-case-study-detail .cs-section-main-wide {
    grid-column: 2;
  }

  .page-case-study-detail .cs-key-finding,
  .page-case-study-detail .cs-side-note,
  .page-case-study-detail .cs-analysis-note {
    grid-column: 2;
    margin-top: 4px;
  }

  .page-case-study-detail .cs-two-column-copy {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .page-case-study-detail .cs-two-column-copy p + p {
    margin-top: 18px;
  }

  .page-case-study-detail .cs-heading-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .page-case-study-detail .cs-drawing-note {
    text-align: left;
  }

  .page-case-study-detail .cs-sequence {
    grid-template-columns: 1fr;
    border-top: 0;
  }

  .page-case-study-detail .cs-sequence li {
    display: grid;
    grid-template-columns: 44px 150px minmax(0, 1fr);
    gap: 16px;
    padding: 16px 0;
    border-top: 1px solid var(--cs-rule);
  }

  .page-case-study-detail .cs-sequence li::before,
  .page-case-study-detail .cs-sequence li::after {
    display: none;
  }

  .page-case-study-detail .cs-sequence > li > span,
  .page-case-study-detail .cs-sequence h3 {
    margin-bottom: 0;
  }
}

@media (max-width: 640px) {
  .page-case-study-detail .cs-wrap {
    width: min(100% - 34px, var(--site-max));
  }

  .page-case-study-detail .cs-cover {
    padding: 112px 0 46px;
  }

  .page-case-study-detail .cs-record-line {
    align-items: flex-start;
  }

  .page-case-study-detail .cs-record-line span:last-child {
    text-align: right;
  }

  .page-case-study-detail .cs-cover h1 {
    font-size: clamp(2.8rem, 15vw, 4rem);
  }

  .page-case-study-detail .cs-cover-figure img {
    height: 250px;
  }

  .page-case-study-detail .cs-cover-figure figcaption {
    display: block;
  }

  .page-case-study-detail .cs-cover-figure figcaption span {
    display: block;
  }

  .page-case-study-detail .cs-cover-figure figcaption span + span {
    margin-top: 4px;
  }

  .page-case-study-detail .cs-record-section {
    padding: 60px 0 64px;
  }

  .page-case-study-detail .cs-record-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .page-case-study-detail .cs-section-main-wide,
  .page-case-study-detail .cs-key-finding,
  .page-case-study-detail .cs-side-note,
  .page-case-study-detail .cs-analysis-note {
    grid-column: 1;
  }

  .page-case-study-detail .cs-section-index {
    display: flex;
    gap: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--cs-rule);
  }

  .page-case-study-detail .cs-section-index span {
    margin-bottom: 0;
  }

  .page-case-study-detail .cs-section-main h2 {
    font-size: clamp(1.65rem, 8vw, 2.15rem);
  }

  .page-case-study-detail .cs-system-map {
    grid-template-columns: 1fr;
  }

  .page-case-study-detail .cs-system-map article {
    min-height: 0;
    border-right: 0;
  }

  .page-case-study-detail .cs-system-map article::after {
    display: none;
  }

  .page-case-study-detail .cs-system-map h3 {
    margin-top: 20px;
  }

  .page-case-study-detail .cs-matrix {
    border-bottom: 0;
  }

  .page-case-study-detail .cs-matrix-head {
    display: none;
  }

  .page-case-study-detail .cs-matrix-row {
    grid-template-columns: 1fr;
    padding: 15px 0;
  }

  .page-case-study-detail .cs-matrix-row > div {
    padding: 5px 0;
    border-right: 0;
  }

  .page-case-study-detail .cs-sequence li {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .page-case-study-detail .cs-sequence li p {
    grid-column: 2;
  }

  .page-case-study-detail .cs-outcome-register div {
    grid-template-columns: 1fr 1fr;
    gap: 8px 18px;
  }

  .page-case-study-detail .cs-outcome-register p {
    grid-column: 1 / -1;
  }

  .page-case-study-detail .cs-record-footer-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-case-study-detail .cs-case-navigation {
    grid-template-columns: 1fr;
  }

  .page-case-study-detail .cs-case-navigation > a,
  .page-case-study-detail .cs-case-navigation > span {
    min-height: 68px;
    border-right: 0;
    border-bottom: 1px solid var(--cs-rule-dark);
  }

  .page-case-study-detail .cs-case-navigation > :last-child {
    border-bottom: 0;
  }

  .page-case-study-detail .cs-case-navigation > a:nth-child(2),
  .page-case-study-detail .cs-case-navigation > a:last-child {
    align-items: flex-start;
    text-align: left;
  }
}