/* ─────────────────────────────────────────────
   Études de cas : panneau plein écran sur <dialog>
   Mêmes tokens et mêmes composants que main.css (scène laptop, liens).
   Structure : fil, type, nom, introduction, visuel, métadonnées, puis
   Contexte, Approche, Principales réalisations, Technologies, navigation.
   ───────────────────────────────────────────── */

html.study-open {
  overflow: hidden;
}

.case-study {
  inset: 0;
  width: min(1120px, 100%);
  max-width: 100%;
  height: 100dvh;
  max-height: 100dvh;
  margin: 0 auto;
  padding: 0;
  border: 0;
  background: var(--surface);
  color: var(--ink);
  overflow-y: auto;
  overscroll-behavior: contain;
  box-shadow:
    0 0 0 1px var(--hairline),
    0 24px 64px rgba(18, 24, 31, 0.18);
}
.case-study::backdrop {
  background: rgba(18, 24, 31, 0.5);
}

/* Barre collante : fil de navigation et fermeture */
.cs-bar {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 8px 20px 8px 56px;
  background: var(--surface);
  box-shadow: 0 1px 0 var(--hairline);
}
.cs-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.cs-crumb span:last-child {
  color: var(--ink);
}
.cs-close {
  flex-shrink: 0;
  padding: 8px 16px;
  font-size: 14px;
}

.cs-body {
  padding: 40px 56px 48px;
}

/* En-tête du projet : type, nom, introduction */
.cs-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal-strong);
}
.cs-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 1.4rem + 2.6vw, 3.5rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.cs-intro {
  max-width: 46rem;
  margin: 0 0 28px;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* Visuel : la scène des réalisations, en pleine largeur */
.cs-figure {
  margin: 0 0 28px;
}
.work-stage--wide {
  aspect-ratio: 16 / 9;
  padding: 0;
}
.work-stage--wide .laptop {
  width: min(70%, 680px);
}
.cs-figure figcaption {
  max-width: 46rem;
  margin-top: 10px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* Métadonnées : colonnes séparées par des filets, sans cadre */
.cs-facts {
  display: grid;
  grid-auto-columns: minmax(0, 1fr);
  grid-auto-flow: column;
  margin: 0 0 8px;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.cs-facts div {
  min-width: 0;
  padding: 16px 24px;
}
.cs-facts div:first-child {
  padding-left: 0;
}
.cs-facts div + div {
  border-left: 1px solid var(--hairline);
}
.cs-facts dt {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.cs-facts dd {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}
.cs-site {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--signal);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-decoration-color: transparent;
  text-underline-offset: 5px;
  transition-property: text-decoration-color;
  transition-duration: var(--dur-fast);
  transition-timing-function: ease;
}
.cs-site:hover {
  color: var(--signal);
  text-decoration-color: currentColor;
}
.cs-site .icon {
  font-size: 13px;
}

/* Sections : titre serif à gauche, contenu à droite */
.cs-block {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--hairline);
}
.cs-label {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.cs-content {
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink-muted);
}
.cs-content > * {
  margin-bottom: 0;
}
.cs-content > * + * {
  margin-top: 14px;
}

/* Puces (Approche) : un court trait bleu */
.cs-list {
  padding: 0;
  list-style: none;
}
.cs-list li {
  position: relative;
  padding-left: 22px;
}
.cs-list li + li {
  margin-top: 6px;
}
.cs-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 10px;
  height: 2px;
  background: var(--signal);
}

/* Principales réalisations : numéros bleus, deux colonnes */
.cs-achievements {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.cs-achievements li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}
.cs-ach-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--signal);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--signal-strong);
}
.cs-ach-text {
  padding-top: 4px;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}

/* Technologies : une colonne par domaine, filets verticaux */
.cs-tech {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
}
.cs-tech div {
  min-width: 0;
  padding: 4px 20px 12px;
}
.cs-tech div:nth-child(4n + 1) {
  padding-left: 0;
}
.cs-tech div:not(:nth-child(4n + 1)) {
  border-left: 1px solid var(--hairline);
}
.cs-tech div:nth-child(n + 5) {
  margin-top: 8px;
}
.cs-tech dt {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.cs-tech dd {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}

/* Navigation entre études : précédent et suivant, en boucle */
.cs-pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding-top: 28px;
}
.cs-pager-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 4px 0;
}
.cs-pager-link--next {
  align-items: flex-end;
  text-align: right;
}
.cs-pager-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal-strong);
}
.cs-pager-label .icon {
  font-size: 14px;
  color: var(--signal);
  transition-property: transform;
  transition-duration: var(--dur-fast);
  transition-timing-function: ease;
}
.cs-pager-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.15;
  color: var(--ink);
  transition-property: color;
  transition-duration: var(--dur-fast);
  transition-timing-function: ease;
}
.cs-pager-link:hover .cs-pager-name {
  color: var(--signal);
}
.cs-pager-link:hover .icon-arrow-left {
  transform: translateX(-3px);
}
.cs-pager-link:hover .icon-arrow-right {
  transform: translateX(3px);
}

/* Entrée en léger décalé, sortie plus courte et plus discrète */
@media (prefers-reduced-motion: no-preference) {
  .case-study[open] {
    animation: cs-in 0.28s cubic-bezier(0.2, 0, 0, 1);
  }
  .case-study[open]::backdrop {
    animation: cs-fade 0.28s ease;
  }
  .case-study[open] .cs-kicker,
  .case-study[open] .cs-title,
  .case-study[open] .cs-intro,
  .case-study[open] .cs-figure {
    animation: cs-rise 0.4s cubic-bezier(0.2, 0, 0, 1) backwards;
  }
  .case-study[open] .cs-intro {
    animation-delay: 0.06s;
  }
  .case-study[open] .cs-figure {
    animation-delay: 0.12s;
  }
  .case-study.closing {
    animation: cs-out 0.16s ease forwards;
  }
  .case-study.closing::backdrop {
    animation: cs-fade 0.16s ease reverse forwards;
  }
}
@keyframes cs-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
}
@keyframes cs-rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}
@keyframes cs-out {
  to {
    opacity: 0;
    transform: translateY(8px);
  }
}
@keyframes cs-fade {
  from {
    opacity: 0;
  }
}

@media (max-width: 1023px) {
  .case-study {
    width: 100%;
    box-shadow: none;
  }
  .cs-bar {
    padding-left: 24px;
  }
  .cs-body {
    padding: 32px 24px 40px;
  }
  .cs-block {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 24px;
  }
  .cs-tech {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cs-tech div:nth-child(n) {
    padding: 4px 20px 12px;
    border-left: 0;
  }
  .cs-tech div:nth-child(odd) {
    padding-left: 0;
  }
  .cs-tech div:nth-child(even) {
    border-left: 1px solid var(--hairline);
  }
  .cs-tech div:nth-child(n + 3) {
    margin-top: 8px;
  }
}

@media (max-width: 767px) {
  .cs-bar {
    padding-left: 20px;
  }
  .cs-body {
    padding: 28px 20px 40px;
  }
  .cs-intro {
    font-size: 1.0625rem;
  }
  .work-stage--wide {
    aspect-ratio: 3 / 2;
  }
  .work-stage--wide .laptop {
    width: 88%;
  }
  /* Métadonnées et sections en lecture verticale */
  .cs-facts {
    grid-auto-flow: row;
    grid-template-columns: minmax(0, 1fr);
  }
  .cs-facts div,
  .cs-facts div:first-child {
    padding: 12px 0;
  }
  .cs-facts div + div {
    border-left: 0;
    border-top: 1px solid var(--hairline);
  }
  .cs-block {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    padding: 24px 0;
  }
  .cs-label {
    font-size: 1.25rem;
  }
  .cs-achievements {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
  .cs-tech {
    grid-template-columns: minmax(0, 1fr);
  }
  .cs-tech div:nth-child(n),
  .cs-tech div:nth-child(even) {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 12px;
    margin: 0;
    padding: 10px 0;
    border-left: 0;
  }
  .cs-tech div + div {
    border-top: 1px solid var(--hairline);
  }
  .cs-tech dt {
    margin: 0;
    padding-top: 3px;
  }
  .cs-pager {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding-top: 8px;
  }
  .cs-pager-link {
    padding: 16px 0;
  }
  .cs-pager-link + .cs-pager-link {
    border-top: 1px solid var(--hairline);
  }
  .cs-pager-name {
    font-size: 1.25rem;
  }
}