/* ============================================================
   Page « Le projet » (/projet) — galerie de tout ce qui a été créé pour le site.
   Même matière que le site : obsidienne, os, grotesque condensée + serif italique + mono.
   Grille en colonnes (maçonnerie), vidéos lues seulement à l'écran, visionneuse plein écran.
   ============================================================ */
:root { --ob-0: #050507; --ob-1: #070809; --ob-2: #0b0c10; --bone: #e9e4dc; --bone-soft: rgba(233,228,220,.62); --bone-faint: rgba(233,228,220,.34); --cold: #b9c6d6;
  --gutter: clamp(1.25rem, 3.4vw, 3.25rem); --ease-out: cubic-bezier(.22, 1, .36, 1);
  --font-display: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif; --font-serif: "Instrument Serif", "Times New Roman", serif; --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace; }
* { box-sizing: border-box; }
html { background: var(--ob-0); color: var(--bone); -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font-display); font-size: 16px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
.mono { font-family: var(--font-mono); letter-spacing: .14em; text-transform: uppercase; font-size: .62rem; }
a { color: inherit; }

/* ---------- en-tête ---------- */
.projet__nav { position: fixed; inset: 0 0 auto 0; z-index: 10; pointer-events: none; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: calc(var(--gutter) * .55) var(--gutter); background: linear-gradient(to bottom, rgba(5,5,7,.9), rgba(5,5,7,0)); }
.projet__nav > * { pointer-events: auto; }
.projet__nav { transition: opacity .35s var(--ease-out), transform .35s var(--ease-out); }
html.is-away .projet__nav { opacity: 0; transform: translateY(-12px); pointer-events: none; }
.projet__logo { display: inline-flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--bone); white-space: nowrap; }
.projet__logo svg { width: 1.35rem; height: 1.35rem; }
.projet__logo span { display: inline-flex; align-items: baseline; font-size: .98rem; }
.projet__logo b { font-weight: 800; text-transform: uppercase; letter-spacing: .03em; font-variation-settings: "wdth" 80, "opsz" 96; }
.projet__logo i { font: italic 1.08em/1 var(--font-serif); margin-left: .22em; color: rgba(233,228,220,.92); }
.projet__lang { display: inline-flex; gap: .8rem; margin-left: auto; }
.projet__lang a { color: var(--bone-faint); text-decoration: none; }
.projet__lang a[aria-current] { color: var(--bone); }
.projet__back { color: var(--bone-soft); text-decoration: none; padding: .45rem .9rem; border: 1px solid rgba(233,228,220,.18); border-radius: 999px; transition: border-color .3s; }
.projet__back:hover { border-color: rgba(233,228,220,.5); }

/* ---------- tête de page ---------- */
main { padding: calc(var(--gutter) * 2.6) var(--gutter) var(--gutter); }
.projet__head { max-width: 62rem; margin-bottom: calc(var(--gutter) * 1.2); }
.projet__eyebrow { margin: 0 0 1.2rem; color: var(--bone-soft); }
.projet__title { margin: 0; line-height: .92; letter-spacing: -.02em; }
.projet__title-sans { display: block; font-size: clamp(2.6rem, 6.4vw, 6.2rem); font-weight: 800; text-transform: uppercase; font-variation-settings: "wdth" 80, "opsz" 96; }
.projet__title-serif { display: block; font: italic clamp(2.2rem, 5.2vw, 5rem)/1 var(--font-serif); margin: .15em 0 0 .06em; color: rgba(233,228,220,.94); }
.projet__lead { max-width: 40rem; margin: 1.6rem 0 0; font-size: 1.05rem; color: var(--bone-soft); }
.projet__count { margin: 1.2rem 0 0; color: var(--bone-faint); }

/* ---------- filtres ---------- */
.projet__filters { position: sticky; top: 3.3rem; z-index: 5; display: flex; flex-wrap: wrap; gap: .5rem; padding: .9rem 0; margin: 0 0 1.4rem; background: linear-gradient(to bottom, var(--ob-0) 78%, rgba(5,5,7,0)); }
.projet__filters button { appearance: none; border: 1px solid rgba(233,228,220,.16); border-radius: 999px; background: none; color: var(--bone-soft); padding: .55rem 1rem; font: inherit; letter-spacing: inherit; text-transform: inherit; cursor: pointer; transition: border-color .3s, color .3s, background .3s; }
.projet__filters button:hover { border-color: rgba(233,228,220,.4); color: var(--bone); }
.projet__filters button[aria-pressed="true"] { background: var(--bone); color: var(--ob-0); border-color: var(--bone); }
.projet__filters button:focus-visible, .card:focus-visible, .viewer__btn:focus-visible, .projet__top:focus-visible { outline: 1px solid var(--bone); outline-offset: 5px; }

/* ---------- grille ---------- */
.projet__grid { columns: 3; column-gap: 1rem; }
.card { display: block; break-inside: avoid; margin: 0 0 1rem; padding: 0; border: 0; background: var(--ob-2); border-radius: 10px; overflow: hidden; cursor: zoom-in; text-align: left; color: inherit; font: inherit; width: 100%; position: relative; box-shadow: 0 0 0 1px rgba(233,228,220,.06); transition: box-shadow .35s var(--ease-out), transform .5s var(--ease-out); animation: card-in .6s var(--ease-out) both; }
.card:hover { box-shadow: 0 0 0 1px rgba(233,228,220,.28); }
.card[hidden] { display: none; }
.card__media { display: block; position: relative; width: 100%; aspect-ratio: var(--ar, 16 / 10); background: var(--ob-1); overflow: hidden; }
.card__media img, .card__media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .8s var(--ease-out), opacity .5s; }
.card:hover .card__media img, .card:hover .card__media video { transform: scale(1.03); }
.card__media video { opacity: 0; }
.card__media video.is-live { opacity: 1; }
.card__tag { position: absolute; left: .7rem; top: .7rem; z-index: 1; padding: .3rem .55rem; border-radius: 999px; background: rgba(5,5,7,.62); color: var(--bone); font-size: .54rem; letter-spacing: .16em; display: inline-flex; align-items: center; gap: .4rem; }
.card__tag i { width: .4rem; height: .4rem; border-radius: 50%; background: var(--cold); box-shadow: 0 0 8px var(--cold); }
.card__cap { display: grid; grid-template-columns: 1fr auto; gap: .2rem .8rem; padding: .75rem .85rem .85rem; }
.card__cap b { font-weight: 600; font-size: .92rem; line-height: 1.25; }
.card__cap small { grid-column: 1 / -1; color: var(--bone-faint); font-size: .58rem; letter-spacing: .12em; text-transform: uppercase; font-family: var(--font-mono); }
.card__cap .card__n { color: var(--bone-faint); font-family: var(--font-mono); font-size: .58rem; letter-spacing: .12em; align-self: start; padding-top: .2rem; }
@keyframes card-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
/* carte visée par « Voir le projet » (projet.html#<id>) : anneau qui s'estompe */
.card.is-target { box-shadow: 0 0 0 1px var(--bone), 0 0 0 7px rgba(233,228,220,.14); animation: card-target 3.2s var(--ease-out) forwards; }
@keyframes card-target { 0%, 35% { box-shadow: 0 0 0 1px var(--bone), 0 0 0 7px rgba(233,228,220,.14); } 100% { box-shadow: 0 0 0 1px rgba(233,228,220,.28), 0 0 0 0 rgba(233,228,220,0); } }
.projet__empty { padding: 3rem 0; color: var(--bone-faint); }

/* ---------- pied ---------- */
.projet__foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-top: calc(var(--gutter) * 1.5); padding-top: 1.4rem; border-top: 1px solid rgba(233,228,220,.1); color: var(--bone-faint); }
.projet__foot p { max-width: 46rem; margin: 0; line-height: 1.7; }
.projet__top { color: var(--bone-soft); text-decoration: none; white-space: nowrap; }

/* ---------- visionneuse ---------- */
.viewer { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: var(--gutter); }
.viewer[hidden] { display: none; }
.viewer__backdrop { position: absolute; inset: 0; background: rgba(5,5,7,.95); }
.viewer__figure { position: relative; z-index: 1; margin: 0; display: grid; grid-template-rows: minmax(0, 1fr) auto; gap: 1rem; width: min(100%, 1400px); max-height: 100%; }
.viewer__media { position: relative; display: grid; place-items: center; min-height: 0; }
.viewer__media img, .viewer__media video { max-width: 100%; max-height: calc(100svh - var(--gutter) * 2 - 7rem); width: auto; height: auto; display: block; border-radius: 8px; box-shadow: 0 30px 80px rgba(0,0,0,.6); background: var(--ob-1); }
.viewer__caption { display: grid; grid-template-columns: auto 1fr auto; gap: .3rem 1.6rem; align-items: baseline; }
.viewer__index { margin: 0; color: var(--bone-faint); }
.viewer__title { margin: 0; font: italic clamp(1.4rem, 2.6vw, 2.2rem)/1.05 var(--font-serif); }
.viewer__sector { margin: 0; grid-column: 2; color: var(--bone-soft); font-size: .92rem; }
.viewer__meta { margin: 0; grid-column: 3; grid-row: 1 / 3; text-align: right; color: var(--bone-faint); line-height: 1.8; }
.viewer__btn { position: absolute; z-index: 2; appearance: none; border: 1px solid rgba(233,228,220,.2); border-radius: 999px; background: rgba(5,5,7,.6); color: var(--bone); cursor: pointer; font: inherit; transition: border-color .3s, background .3s; }
.viewer__btn:hover { border-color: rgba(233,228,220,.55); background: rgba(5,5,7,.85); }
.viewer__btn--close { top: calc(var(--gutter) * .55); right: var(--gutter); padding: .55rem .95rem; }
.viewer__btn--close kbd { font: inherit; opacity: .55; margin-left: .4em; }
.viewer__btn--prev, .viewer__btn--next { top: 50%; transform: translateY(-50%); width: 3rem; height: 3rem; font-size: 1.1rem; }
.viewer__btn--prev { left: calc(var(--gutter) * .5); }
.viewer__btn--next { right: calc(var(--gutter) * .5); }
html.is-viewer { overflow: hidden; }

/* ---------- réactif ---------- */
@media (min-width: 1500px) { .projet__grid { columns: 4; } }
@media (max-width: 1023px) { .projet__grid { columns: 2; } }
@media (max-width: 767px), (pointer: coarse) and (max-height: 520px) {
  main { padding-top: calc(var(--gutter) * 3.2); }
  .projet__back { display: none; }
  .projet__lang { margin-left: auto; }
  .projet__grid { columns: 2; column-gap: .6rem; }
  .card { margin-bottom: .6rem; border-radius: 8px; }
  .card__cap { padding: .55rem .6rem .65rem; }
  .card__cap b { font-size: .8rem; }
  .card__cap .card__n { display: none; }
  /* téléphone : la barre de filtres ne reste pas collée (deux rangées sous l'en-tête mangeaient l'écran) */
  .projet__filters { position: static; gap: .4rem; padding: .7rem 0; }
  .projet__filters button { padding: .6rem .9rem; font-size: .6rem; }
  .projet__foot { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .viewer { padding: .8rem; }
  .viewer__figure { gap: .7rem; }
  .viewer__media img, .viewer__media video { max-height: calc(100svh - 9.5rem); border-radius: 6px; }
  .viewer__caption { grid-template-columns: 1fr; gap: .25rem; }
  .viewer__index, .viewer__title, .viewer__sector, .viewer__meta { grid-column: 1; grid-row: auto; text-align: left; }
  .viewer__meta { margin-top: .3rem; }
  .viewer__btn--close { top: .8rem; right: .8rem; }
  .viewer__btn--prev, .viewer__btn--next { top: auto; bottom: .8rem; transform: none; width: 2.6rem; height: 2.6rem; }
  .viewer__btn--prev { left: .8rem; } .viewer__btn--next { right: .8rem; }
}
@media (max-width: 480px) { .projet__grid { columns: 1; } }
@media (prefers-reduced-motion: reduce) { .card, .card__media img, .card__media video { animation: none; transition: none; } }