/* ETUDE DE CAS — /projet/:slug (refonte du 04/10/2026).
   Une colonne de lecture, des sections numerotees 01 a 07 dans l'ordre du
   cahier des charges ; la derniere (details techniques) est repliee. */

.case-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(2.5rem, 7vw, 4.5rem) 0 clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
}
.case-hero .wrap { position: relative; z-index: 1; }

.case-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1rem; margin: 0 0 1rem; }
.case-name { color: var(--accent); font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }

.case-title {
  max-width: 22ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4.8vw, 3.3rem);
  line-height: 1.06;
  letter-spacing: -.03em;
  text-wrap: balance;
}
.case-lede {
  max-width: 58ch;
  margin: 1.2rem 0 0;
  color: color-mix(in srgb, var(--text) 85%, var(--text-muted));
  font-size: clamp(1.08rem, 1.6vw, 1.24rem);
  line-height: 1.6;
}
.case-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.9rem; }

/* ---------------------------------------------------------------- corps */

/* Meme bord gauche que l'en-tete : la colonne de lecture se limite par ses
   enfants, pas par un second conteneur centre. */
.case-body { padding-top: clamp(1.5rem, 4vw, 2.5rem); }
.case-body > * { max-width: 880px; }

.case-sec { padding: clamp(1.75rem, 4vw, 2.5rem) 0; border-bottom: 1px solid color-mix(in srgb, var(--border) 55%, transparent); }
.case-sec h2 {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  margin: 0 0 1rem;
  font-size: clamp(1.3rem, 2.4vw, 1.65rem);
}
.case-n { color: var(--accent); font-family: var(--mono); font-size: .8rem; font-weight: 500; letter-spacing: .04em; }
.case-sec p { max-width: 66ch; margin: 0; font-size: 1.06rem; line-height: 1.7; }
.case-sec p + p { margin-top: 1rem; }
.case-big { font-size: clamp(1.15rem, 1.9vw, 1.35rem) !important; line-height: 1.55 !important; color: var(--text); }

.case-list { display: grid; gap: .75rem; max-width: 66ch; margin: 0; padding: 0; list-style: none; }
.case-list li { position: relative; padding-inline-start: 1.6rem; font-size: 1.04rem; line-height: 1.6; }
.case-list li::before {
  content: '✦';
  position: absolute;
  inset-inline-start: 0;
  top: .05rem;
  color: var(--accent);
  font-size: .8rem;
}

/* Resultat : les chiffres d'abord, en grand. */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr));
  gap: .9rem;
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
}
.metrics li {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background:
    radial-gradient(120% 120% at 0% 0%, var(--accent-soft), transparent 60%),
    var(--surface);
}
.metrics b {
  font-family: var(--display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.metrics span { color: var(--text-muted); font-size: .9rem; line-height: 1.4; }

/* En images : plus large que la colonne de texte. */
.case-sec-wide { max-width: none; }
.case-figure { margin: 0; }
.case-figure .pvis {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 60px -40px rgba(0, 0, 0, .8);
}
.case-figure figcaption { margin-top: .75rem; color: var(--text-muted); font-size: .9rem; }

/* --------------------------------------------- details techniques (replies) */

.case-tech {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.case-tech summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: .25rem .8rem;
  padding: 1.15rem 1.3rem;
  cursor: pointer;
  list-style: none;
  border-radius: var(--radius-lg);
}
.case-tech summary::-webkit-details-marker { display: none; }
.case-tech summary::after {
  content: '+';
  grid-column: 3;
  grid-row: 1;
  color: var(--accent);
  font-size: 1.4rem;
  line-height: 1;
  transition: transform .2s ease;
}
.case-tech[open] summary::after { transform: rotate(45deg); }
.case-tech summary:hover { background: var(--surface-hover); }
.case-tech-titre { font-family: var(--display); font-size: 1.25rem; font-weight: 700; }
.case-tech-sous { grid-column: 2; color: var(--text-muted); font-size: .9rem; }
.case-tech-in { padding: .25rem 1.3rem 1.5rem; }
.case-tech-in h3 {
  margin: 1.4rem 0 .7rem;
  color: var(--text-muted);
  font-family: inherit;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.case-list-tech li { font-size: .97rem; }
.stack, .limits { display: flex; flex-wrap: wrap; gap: .45rem; margin: 0; padding: 0; list-style: none; }
.stack li {
  padding: .3rem .7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  font-family: var(--mono);
  font-size: .8rem;
}
.limits li {
  padding: .3rem .75rem;
  border: 1px dashed color-mix(in srgb, var(--text-muted) 55%, transparent);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: .86rem;
}
.case-tech-links { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.5rem; }

/* Architecture en un coup d'oeil (phase 4) : le chemin d'une requete, couche
   par couche, relie par un trait. La derniere entree decrit ce qui entoure. */
.arch { display: grid; gap: 0; max-width: 66ch; margin: 0; padding: 0; list-style: none; counter-reset: arch; }
.arch li {
  position: relative;
  padding: .55rem .9rem .55rem 2.2rem;
  border-inline-start: 2px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  margin-inline-start: .55rem;
  font-size: .95rem;
  line-height: 1.5;
}
.arch li::before {
  counter-increment: arch;
  content: counter(arch);
  position: absolute;
  inset-inline-start: -.7rem;
  top: .6rem;
  display: grid;
  place-items: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--accent) 60%, var(--border));
  color: var(--accent);
  font-family: var(--mono);
  font-size: .68rem;
}
.arch li:last-child { border-inline-start-style: dashed; color: var(--text-muted); }
.case-incidents li::before { content: '!'; font-family: var(--mono); font-weight: 700; }

/* « A verifier soi-meme » : sous les chiffres, des mesures qu'on ouvre. */
.case-verify { margin: 1.4rem 0 0; padding: .9rem 1.1rem 1rem; border: 1px dashed var(--border); border-radius: var(--radius); max-width: 66ch; }
.case-verify h3 { margin: 0 0 .5rem; color: var(--text-muted); font-family: inherit; font-size: .74rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.case-verify ul { display: grid; gap: .4rem; margin: 0; padding: 0; list-style: none; }
.case-verify a { font-size: .95rem; overflow-wrap: anywhere; }

/* ------------------------------------------------ fin : contact et navigation */

.case-end { padding-top: clamp(2.5rem, 6vw, 4rem); padding-bottom: clamp(3rem, 7vw, 5rem); }
.case-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
  padding: clamp(1.4rem, 3.5vw, 2rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(90% 140% at 100% 100%, var(--accent-soft), transparent 65%),
    var(--surface);
}
.case-cta h2 { margin: 0; font-size: clamp(1.25rem, 2.4vw, 1.55rem); }
.case-cta p { margin: .45rem 0 0; color: var(--text-muted); max-width: 52ch; }

.case-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  margin-top: 1.75rem;
}
.case-nav a { text-decoration: none; }
.case-nav-prev, .case-nav-next {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  min-height: 44px;
  padding: .85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
}
.case-nav-next { text-align: end; align-items: flex-end; }
.case-nav-prev:hover, .case-nav-next:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); color: var(--text); background: var(--surface-hover); }
.case-nav-k { color: var(--text-muted); font-size: .8rem; }
.case-nav-v { font-family: var(--display); font-weight: 600; overflow-wrap: anywhere; }
.case-nav-all { padding: .6rem .4rem; color: var(--accent); font-size: .92rem; font-weight: 600; text-align: center; }

@media (max-width: 640px) {
  .case-nav { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .case-nav-all { grid-column: 1 / -1; grid-row: 2; }
  .case-tech summary { grid-template-columns: auto 1fr auto; }
}

@media (prefers-reduced-motion: reduce) {
  .case-tech summary::after { transition: none; }
}

/* Contribution (Phase 1.25) : discrète, lisible avant les détails techniques. */
.case-contrib { max-width: 66ch; margin-block: 2rem; padding-inline-start: 1rem; border-inline-start: 2px solid var(--accent); }
.case-contrib h2 { margin: 0 0 .6rem; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); }
.case-contrib dl { display: grid; gap: .8rem; margin: 0; }
.case-contrib dt { font-weight: 600; font-size: .92rem; }
.case-contrib dd { margin: .15rem 0 0; font-size: .98rem; line-height: 1.55; color: var(--text); }