/* Case studies — dossier layer. Loaded only by /case-studies/ pages.
   Additive to styles.css (same token set). Scope: .case-* components plus
   the two page body classes. Parent-scoped selectors are deliberate: the
   global [class$="__eyebrow"] rule in styles.css outranks single classes. */

/* ---------- Shared dossier primitives ---------- */

.case-code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  background: rgba(10, 7, 27, 0.82);
  border: 1px solid var(--stroke);
  padding: 6px 10px;
  border-radius: 4px;
  display: inline-block;
}

/* ---------- Cover (detail + index variant) ---------- */

.case-cover {
  position: relative;
  min-height: 86vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-bottom: 1px solid var(--stroke);
}

.case-cover--index {
  min-height: 56vh;
}

.case-cover__media,
.case-cover__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% 38%;
}

.case-cover__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 7, 27, 0.72) 0%, rgba(10, 7, 27, 0.35) 38%, rgba(10, 7, 27, 0.88) 82%),
    radial-gradient(900px 480px at 78% 22%, rgba(219, 18, 65, 0.14), transparent 60%);
}

.case-cover__bar {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: min(var(--max-width), 90vw);
  margin: 0 auto;
  padding: 18px 0 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--white);
  border-bottom: 2px solid var(--accent);
}

.case-cover__content {
  position: relative;
  z-index: 2;
  margin-top: auto;
  padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
}

.case-cover .case-cover__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  margin: 0 0 14px;
}

.case-cover h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.3rem);
  line-height: 1.02;
  color: var(--white);
  margin: 0 0 18px;
  max-width: 15ch;
}

.case-cover h1 em {
  font-style: normal;
  color: var(--accent);
}

.case-cover .lead {
  max-width: 56ch;
  color: rgba(255, 255, 255, 0.82);
}

.case-cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.case-cover__meta > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.case-cover__meta dt {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text);
}

.case-cover__meta dd {
  margin: 0;
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
}

.case-cover__hint {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text);
}

.case-cover__hint::after {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--accent);
  animation: case-hint-slide 2.2s ease-in-out infinite;
}

@keyframes case-hint-slide {
  0%, 100% { transform: translateX(0); opacity: 1; }
  55% { transform: translateX(10px); opacity: 0.45; }
}

/* ---------- Case file layout ---------- */

.case-file {
  position: relative;
  padding: clamp(40px, 6vw, 84px) 0;
}

.case-file__evidence {
  display: none;
}

/* Enhanced (JS + wide viewport) pinned mode */
.case-file--pinned {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  gap: clamp(32px, 4.5vw, 64px);
  align-items: start;
}

.case-file--pinned .case-file__evidence {
  display: block;
  position: sticky;
  top: calc(var(--nav-offset, 120px) + 14px);
  height: min(calc(100vh - var(--nav-offset, 120px) - 34px), 760px);
}

.case-file--pinned .case-beat {
  min-height: 68vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0.32;
  transition: opacity 0.45s ease;
}

.case-file--pinned .case-beat.is-active {
  opacity: 1;
}

.case-file--pinned .case-beat > .case-evidence__item {
  display: none; /* figures have been moved into the panel */
}

/* Settle-and-stamp (spec 2026-07-12). Snap exists only while the pinned
   layout exists: scripts-case-study.js toggles html.case-snap in
   buildPinned/teardownPinned. Proximity keeps fast flicks free. */
html.case-snap {
  scroll-snap-type: y proximity;
}

.case-file--pinned .case-beat {
  scroll-snap-align: center;
}

/* Constant padding in both states: the stamp is paint-only (background,
   shadow), so activation never reflows the story column mid-scroll. */
.case-file--pinned .case-beat__copy {
  padding: 18px 20px;
  margin: 0 -20px;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease-out, box-shadow 0.15s ease-out;
}

.case-file--pinned .case-beat.is-active .case-beat__copy {
  background: var(--surface);
  box-shadow: inset 3px 0 0 var(--accent), var(--shadow-soft);
}

/* ---------- Story beats ---------- */

.case-beat {
  padding: clamp(28px, 4vw, 44px) 0;
}

.case-beat .case-beat__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  margin: 0 0 12px;
}

.case-beat h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  line-height: 1.04;
  color: var(--white);
  margin: 0 0 16px;
  max-width: 17ch;
}

.case-beat h2 em {
  font-style: normal;
  color: var(--accent);
}

.case-beat__copy p {
  max-width: 54ch;
  margin: 0 0 14px;
}

.case-beat__copy p:last-child {
  margin-bottom: 0;
}

/* ---------- Evidence panel + items ---------- */

.case-evidence {
  position: relative;
  height: 100%;
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

/* crop-mark corners */
.case-evidence::after {
  content: "";
  position: absolute;
  inset: 10px;
  z-index: 4;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
    linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55));
  background-position: 0 0, 0 0, 100% 0, 100% 0, 0 100%, 0 100%, 100% 100%, 100% 100%;
  background-size: 15px 2px, 2px 15px, 15px 2px, 2px 15px, 15px 2px, 2px 15px, 15px 2px, 2px 15px;
  background-repeat: no-repeat;
}

.case-evidence__bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 26px 10px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--white);
  background: linear-gradient(180deg, rgba(10, 7, 27, 0.88), rgba(10, 7, 27, 0));
}

.case-evidence__bar::after {
  content: "";
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 0;
  height: 2px;
  background: var(--accent);
}

.case-evidence__sheet {
  font-variant-numeric: tabular-nums;
}

.case-evidence .case-evidence__item {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  transform: scale(1.015);
  transition: opacity 0.5s ease, transform 0.7s ease;
  pointer-events: none;
}

.case-evidence .case-evidence__item.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.case-evidence__item img,
.case-evidence__item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-evidence__item figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 42px 26px 16px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
  background: linear-gradient(180deg, rgba(10, 7, 27, 0), rgba(10, 7, 27, 0.85));
}

/* Stacked (mobile / no-JS) presentation of the same figures */
.case-beat > .case-evidence__item {
  position: relative;
  margin: 22px 0 0;
  aspect-ratio: 4 / 5;
  max-height: 74vh;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow-soft);
}

.case-beat > .case-evidence__item::before {
  content: attr(data-sheet-tag);
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  background: rgba(10, 7, 27, 0.82);
  border: 1px solid var(--stroke);
  padding: 5px 8px;
  border-radius: 4px;
}

/* ---------- Annotation markers ---------- */

.case-marker {
  position: absolute;
  left: var(--mx, 50%);
  top: var(--my, 50%);
  z-index: 2;
  transition: opacity 0.45s ease, visibility 0s linear 0s;
}

/* Applied by scripts-case-study.js while a video's camera has panned away
   from the annotated component; fades back in when the loop returns. */
.case-marker--faded {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s ease, visibility 0s linear 0.45s;
}

.case-marker__dot {
  position: relative;
  width: 16px;
  height: 16px;
  padding: 0;
  background: transparent;
  border: 2px solid var(--accent);
  border-radius: 2px;
  cursor: pointer;
  display: block;
}

.case-marker__dot::before {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--accent);
  border-radius: 50%;
}

.case-marker__dot::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 2px;
  box-shadow: 0 0 0 0 rgba(219, 18, 65, 0.55);
  animation: case-marker-pulse 2s ease-in-out infinite;
}

@keyframes case-marker-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(219, 18, 65, 0.55); }
  55% { box-shadow: 0 0 0 9px rgba(219, 18, 65, 0); }
}

.case-marker__chip {
  position: absolute;
  left: 22px;
  bottom: 20px;
  transform: translateY(6px);
  opacity: 0;
  transition: opacity 0.35s ease 0.15s, transform 0.35s ease 0.15s;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--white);
  background: rgba(10, 7, 27, 0.92);
  border: 1px solid var(--stroke);
  padding: 6px 9px;
  border-radius: 3px;
  pointer-events: none;
}

.case-marker__chip::before {
  content: "";
  position: absolute;
  left: -12px;
  bottom: -9px;
  width: 14px;
  height: 2px;
  background: var(--accent);
  transform: rotate(-38deg);
}

.case-marker--flip .case-marker__chip {
  left: auto;
  right: 22px;
}

.case-marker--flip .case-marker__chip::before {
  left: auto;
  right: -12px;
  transform: rotate(38deg);
}

.case-marker.is-shown .case-marker__chip,
.case-marker__dot[aria-expanded="true"] + .case-marker__chip {
  opacity: 1;
  transform: translateY(0);
}

.case-marker__dot:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 3px;
}

/* ---------- Fault-log terminal ---------- */

.case-terminal {
  margin: 20px 0 0;
  max-width: 460px;
  background: #0D0A1E;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-family: var(--font-mono);
}

.case-terminal__bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 14px;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  border-bottom: 1px solid var(--stroke);
  background: rgba(219, 18, 65, 0.06);
}

.case-terminal__body {
  padding: 14px 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-terminal__line {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.88);
}

.case-terminal__line::before {
  content: ">";
  color: var(--accent-on-dark);
  flex: none;
}

.case-terminal__text {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  max-width: var(--ch, 30ch);
}

.case-terminal__line--status .case-terminal__text {
  color: var(--accent-on-dark);
}

.case-terminal.is-armed .case-terminal__text {
  max-width: 0;
}

.case-terminal.is-typed .case-terminal__text {
  animation: case-type steps(24, end) forwards;
  animation-duration: 0.9s;
}

.case-terminal.is-typed .case-terminal__line:nth-child(2) .case-terminal__text { animation-delay: 0.55s; }
.case-terminal.is-typed .case-terminal__line:nth-child(3) .case-terminal__text { animation-delay: 1.1s; }
.case-terminal.is-typed .case-terminal__line--status .case-terminal__text { animation-delay: 1.9s; }

@keyframes case-type {
  from { max-width: 0; }
  to { max-width: var(--ch, 30ch); }
}

.case-terminal__line--status .case-terminal__text::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 1em;
  margin-left: 6px;
  vertical-align: text-bottom;
  background: var(--accent-on-dark);
  animation: case-caret 1.1s steps(2, start) infinite;
}

@keyframes case-caret {
  to { visibility: hidden; }
}

/* ---------- Outcome stats ---------- */

.case-outcome {
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 560px;
}

.case-outcome__stat {
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  padding: 16px 14px 14px;
}

.case-outcome__stat--accent {
  border-color: rgba(219, 18, 65, 0.55);
}

.case-outcome__value {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}

.case-outcome__stat--accent .case-outcome__value {
  color: var(--accent-on-dark);
}

.case-outcome__label {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
}

.case-outcome__verified {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-size: 0.78rem;
  color: var(--text);
}

/* ---------- Annex (client statement) ---------- */

.case-annex {
  margin: 26px 0 0;
  max-width: 560px;
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 22px 24px;
}

.case-annex__quote {
  margin: 0 0 12px;
  font-size: 1.08rem;
  line-height: 1.55;
  color: var(--white);
}

.case-annex__attribution {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text);
}

/* ---------- Index page: featured case card + pending strip ---------- */

.case-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s ease, border-color 0.35s ease;
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(219, 18, 65, 0.5);
}

.case-card__media {
  position: relative;
  min-height: 340px;
}

.case-card__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card__media .case-code {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
}

.case-card__body {
  padding: clamp(24px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.case-card .case-card__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  margin: 0;
}

.case-card h2,
.case-card h3 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  line-height: 1.08;
  color: var(--white);
  margin: 0;
}

.case-card__excerpt {
  margin: 0;
  max-width: 46ch;
}

.case-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 0;
}

.case-card__stat {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
  border: 1px solid var(--stroke);
  border-radius: 999px;
  padding: 7px 12px;
}

.case-card__stat strong {
  color: var(--accent-on-dark);
  font-weight: 700;
}

.case-card__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--white);
}

.case-card__cta::after {
  content: "\2192";
  color: var(--accent-on-dark);
  transition: transform 0.3s ease;
}

.case-card:hover .case-card__cta::after {
  transform: translateX(5px);
}

.case-pending {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px dashed var(--surface-2);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
}

.case-pending::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
  animation: case-marker-pulse 2s ease-in-out infinite;
}

/* ---------- Responsive ---------- */

@media (max-width: 899px) {
  .case-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .case-card__body {
    min-width: 0;
  }

  .case-card__media {
    min-height: 240px;
    aspect-ratio: 16 / 10;
  }

  .case-outcome {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .case-cover__meta {
    gap: 12px 22px;
  }
}

@media (max-width: 540px) {
  .case-outcome {
    grid-template-columns: 1fr 1fr;
  }

  .case-outcome__stat--accent {
    grid-column: 1 / -1;
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .case-cover__hint::after,
  .case-marker__dot::after,
  .case-pending::before {
    animation: none;
  }

  .case-terminal.is-armed .case-terminal__text,
  .case-terminal.is-typed .case-terminal__text {
    max-width: var(--ch, 30ch);
    animation: none;
  }

  .case-terminal__line--status .case-terminal__text::after {
    animation: none;
  }

  .case-evidence .case-evidence__item,
  .case-file--pinned .case-beat,
  .case-file--pinned .case-beat__copy,
  .case-marker__chip,
  .case-card,
  .case-card__cta::after {
    transition: none;
  }
}