@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* =========================================
   VARIABLES
   ========================================= */
:root {
  --black: #000000;
  --white: #ffffff;
  --gray-50:  #f9f9f9;
  --gray-100: #f0f0f0;
  --gray-200: #e4e4e4;
  --gray-300: #cfcfcf;
  --gray-400: #9a9a9a;
  --gray-600: #555555;

  --archi: #1A7A38;   /* Architecture */
  --amo:   #0055B3;   /* AMO */
  --art:   #C04000;   /* Art & Espaces publics */
  --sensi: #9A6E00;   /* Sensibilisation */
  --agen:  #555555;   /* Agence */
  --ppri:  #555555;   /* Prix I Publications */

  --sidebar-w: 30%;
  --pad: clamp(1.75rem, 3.5vw, 4rem);
}

/* =========================================
   RESET / BASE
   ========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--black);
  background: var(--white);
  font-size: 16px;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; color: inherit; }
ul, ol { list-style: none; }

/* =========================================
   LAYOUT 30 / 70
   ========================================= */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ---------- SIDEBAR ---------- */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid var(--gray-200);
  padding: clamp(1.75rem, 3vw, 2.75rem) clamp(1.5rem, 2.5vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  background: var(--white);
}
.side-brand { display: block; }
.side-brand img { width: clamp(75px, 60%, 109px); height: auto; }

.side-nav { display: flex; flex-direction: column; gap: 0.35rem; }
.side-item { display: flex; flex-direction: column; }
.side-link {
  display: block;
  padding: 0.5rem 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
  border-left: 3px solid transparent;
  padding-left: 0.85rem;
  margin-left: -0.85rem;
  transition: color 0.2s, border-color 0.2s, opacity 0.2s;
}
.side-link2 {
  display: block;
  padding: 0.5rem 0;
  font-size: 1.05rem;
  font-weight: 100;
  letter-spacing: -0.01em;
  color: var(--gray-600);
  border-left: 3px solid transparent;
  padding-left: 0.85rem;
  margin-left: -0.85rem;
  transition: color 0.2s, border-color 0.2s, opacity 0.2s;
}
.side-link:hover { opacity: 0.55; }
.side-link2:hover { opacity: 0.55; }

/* Couleurs de catégorie au survol / actif */
.side-item.is-active > .side-link { opacity: 1; border-color: var(--black); }
.side-link--archi:hover, .side-item.is-active .side-link--archi { color: var(--archi); opacity: 1; border-color: var(--archi); }
.side-link--amo:hover,   .side-item.is-active .side-link--amo   { color: var(--amo);   opacity: 1; border-color: var(--amo); }
.side-link--art:hover,   .side-item.is-active .side-link--art   { color: var(--art);   opacity: 1; border-color: var(--art); }
.side-link--sensi:hover, .side-item.is-active .side-link--sensi { color: var(--sensi); opacity: 1; border-color: var(--sensi); }

/* Description repliée sous la catégorie active */
.side-desc {
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--gray-600);
  padding: 0.5rem 0 0.75rem 0.85rem;
  margin-left: -0.85rem;
  border-left: 3px solid var(--gray-200);
}

/* ---------- CONTENU ---------- */
.content {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.content > section { flex: 1; padding: clamp(2rem, 4vw, 4.5rem) var(--pad); }
.content-footer {
  padding: 1.5rem var(--pad);
  border-top: 1px solid var(--gray-200);
  font-size: 0.72rem;
  color: var(--gray-400);
}

/* =========================================
   BARRE MOBILE (cachée en desktop)
   ========================================= */
.mobile-bar { display: none; }
.sidebar-backdrop { display: none; }
.menu-toggle {
  background: none; border: none; padding: 8px;
  display: flex; flex-direction: column; gap: 6px;
}
.menu-toggle span {
  display: block; width: 26px; height: 2px; background: currentColor;
  transition: transform 0.3s, opacity 0.3s;
}
.menu-toggle.is-active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.menu-toggle.is-active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* =========================================
   ACCUEIL
   ========================================= */
.home { max-width: 900px; }
.home-logo img {
    width: clamp(120px, 32vw, 200px);
    height: auto;
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 2.5rem;
}
.home-text { 
  Margin-top: 5rem;
  margin-bottom: 2.5rem;
  align-items: center;
  gap: 2,5rem;
  padding: 0.85rem 0;
  margin-bottom: 5rem;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  width: 100%;
}
.home-p {
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  line-height: 1.85;
  color: #222;
  text-align: justify;
}
.home-p + .home-p { margin-top: 1.1rem; }
.inline-link {
  border-bottom: 1px solid currentColor;
  font-weight: 600;
  transition: opacity 0.2s;
}
.inline-link:hover { opacity: 0.55; }

.home-ajap {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0;
  margin-bottom: 1rem;
  
  width: 100%;
}
.home-ajap img { height: 54px; width: auto; }
.home-ajap span {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-600);
}

.home-cats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}
.home-cat { display: block; }
.home-cat-img {
  display: block;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--gray-100);
}
.home-cat-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: transform 0.5s, filter 0.4s;
}
.home-cat:hover .home-cat-img img { transform: scale(1.05); filter: grayscale(0); }
.home-cat-label {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

/* =========================================
   PAGE CATÉGORIE (liste de projets)
   ========================================= */
.cat-head { margin-bottom: 2.5rem; }
.cat-title {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
.cat-title--archi { color: var(--archi); }
.cat-title--amo   { color: var(--amo); }
.cat-title--art   { color: var(--art); }
.cat-title--sensi { color: var(--sensi); }

/* La description complète vit dans la barre de gauche en desktop ;
   ce paragraphe ne s'affiche que sur mobile. */
.cat-desc-mobile { display: none; }

.cat-list { display: flex; flex-direction: column; gap: 1.5rem; }
.cat-card {
  display: grid;
  grid-template-columns: minmax(180px, 38%) 1fr;
  gap: 1.75rem;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--gray-200);
  transition: transform 0.25s;
}
.cat-card:hover { transform: translateX(4px); }
.cat-card-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--gray-100);
}
.cat-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: transform 0.5s, filter 0.4s;
}
.cat-card:hover .cat-card-img img { transform: scale(1.04); filter: grayscale(0); }
.cat-card-meta { display: flex; flex-direction: column; gap: 0.35rem; }
.cat-card-num {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em; color: var(--gray-400);
}
.cat-card-title { font-size: 1.15rem; font-weight: 700; line-height: 1.25; }
.cat-card-loc  { font-size: 0.85rem; color: var(--gray-600); }
.cat-card-year { font-size: 0.78rem; color: var(--gray-400); }

/* =========================================
   PAGE PROJET (détail) — photos COULEUR
   ========================================= */
.detail-loading { color: var(--gray-400); font-size: 0.9rem; padding: 2rem 0; }
.back-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.8rem; color: var(--gray-400); margin-bottom: 1.75rem;
  transition: color 0.2s;
}
.back-link::before { content: '←'; }
.back-link:hover { color: var(--black); }

.detail-head { margin-bottom: 2rem; }
.detail-title {
  font-size: clamp(1.5rem, 3.2vw, 2.6rem);
  font-weight: 700; letter-spacing: -0.025em; line-height: 1.1;
  margin: 0.85rem 0 0.4rem;
}
.detail-loc { font-size: 0.9rem; color: var(--gray-400); }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 320px);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

.gallery { display: flex; flex-direction: column; gap: 0.6rem; }
.gallery-main {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--gray-100);
}
.gallery-main img {
  display: block;
  max-width: 100%;
  max-height: 80vh;
  width: auto;
  height: auto;
}
.g-prev, .g-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.45); color: #fff; border: none;
  width: 42px; height: 42px; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.2s, background 0.2s; z-index: 2;
}
.g-prev { left: 0.6rem; } .g-next { right: 0.6rem; }
.gallery-main:hover .g-prev, .gallery-main:hover .g-next { opacity: 1; }
.g-prev:hover, .g-next:hover { background: rgba(0,0,0,0.75); }
.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}
.g-thumb {
  aspect-ratio: 1; overflow: hidden; background: var(--gray-100);
  border: none; padding: 0; opacity: 0.55; transition: opacity 0.2s;
}
.g-thumb img { width: 100%; height: 100%; object-fit: cover; }
.g-thumb.active, .g-thumb:hover { opacity: 1; }

.detail-info { position: sticky; top: 2rem; }
.info-desc { font-size: 0.9rem; line-height: 1.8; color: var(--gray-600); margin-bottom: 2rem; }
.info-table { width: 100%; }
.info-row {
  display: grid; grid-template-columns: 100px 1fr; gap: 0.85rem;
  padding: 0.8rem 0; border-top: 1px solid var(--gray-200); font-size: 0.84rem;
}
.info-row:last-child { border-bottom: 1px solid var(--gray-200); }
.info-label {
  font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gray-400); padding-top: 2px;
}
.info-value { font-weight: 500; line-height: 1.45; }
.info-links { margin-top: 1.5rem; }
.info-links-list { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 0.5rem; }
.info-links-list a {
  font-size: 0.82rem; color: var(--black); border-bottom: 1px solid var(--gray-300);
  width: fit-content; transition: opacity 0.2s;
}
.info-links-list a::after { content: ' ↗'; color: var(--gray-400); }
.info-links-list a:hover { opacity: 0.6; }

/* =========================================
   BADGES
   ========================================= */
.badge {
  display: inline-flex; align-items: center;
  padding: 0.22rem 0.7rem; border-radius: 999px;
  font-size: 0.66rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
}
.badge--archi { background: #EEFAF2; color: var(--archi); }
.badge--amo   { background: #EEF4FF; color: var(--amo); }
.badge--art   { background: #FFF2EE; color: var(--art); }
.badge--sensi { background: #FFF8E6; color: var(--sensi); }

/* =========================================
   PLACEHOLDER
   ========================================= */
.card-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(145deg,#e2e2e2,#d5d5d5 50%,#cccccc);
}

/* =========================================
   À PROPOS
   ========================================= */
.about { max-width: 940px; }
.about-head {
  display: flex; flex-wrap: wrap; gap: 2.5rem 4rem; align-items: center;
  padding-bottom: 2.5rem; margin-bottom: 2.5rem; border-bottom: 1px solid var(--gray-200);
}
.about-logo { width: clamp(84px, 20vw, 120px); height: auto; }
.coords { display: flex; flex-direction: column; gap: 1rem; }
.coords li { display: flex; align-items: flex-start; gap: 0.85rem; font-size: 0.9rem; line-height: 1.5; }
.coords svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; fill: none; stroke: var(--black); stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; }
.coords a { border-bottom: 1px solid var(--gray-300); transition: opacity 0.2s; }
.coords a:hover { opacity: 0.6; }

.about-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--gray-200); margin-bottom: 3rem; flex-wrap: wrap; }
.about-tab {
  padding: 0.85rem 1.6rem; background: none; border: none; border-bottom: 2px solid transparent;
  font-size: 0.9rem; font-weight: 600; color: var(--gray-400); margin-bottom: -1px; transition: color 0.2s;
}
.about-tab.active { color: var(--black); border-bottom-color: var(--black); }
.about-tab:hover:not(.active) { color: var(--black); }
.about-panel { display: none; }
.about-panel.active { display: block; animation: fade 0.4s ease both; }

/* Équipe — 3 colonnes, photos rondes */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem 3rem; }
.team-card { text-align: center; }
.team-photo {
  width: 150px; height: 150px; border-radius: 50%; overflow: hidden;
  margin: 0 auto 1.25rem; background: var(--gray-100);
}
.team-photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); }
.team-name { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.85rem; }
.team-text { font-size: 0.84rem; line-height: 1.75; color: var(--gray-600); text-align: left; }
.team-cv { margin-top: 3rem; text-align: center; }
.btn-download {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem; border: 1.5px solid var(--black);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}
.btn-download::before { content: '↓'; }
.btn-download:hover { background: var(--black); color: var(--white); }

/* Prix */
.awards-list { display: flex; flex-direction: column; }
.award-item {
  display: grid; grid-template-columns: 1fr auto; gap: 2.5rem;
  padding: 1.75rem 0; border-bottom: 1px solid var(--gray-200); align-items: start;
}
.award-item:first-child { border-top: 1px solid var(--gray-200); }
.award-year { font-size: 0.78rem; font-weight: 700; color: var(--gray-400); letter-spacing: 0.06em; }
.award-name { font-size: 1.05rem; font-weight: 700; margin: 0.3rem 0 0.5rem; }
.award-desc { font-size: 0.85rem; line-height: 1.7; color: var(--gray-600); }
.award-partners { font-size: 0.8rem; color: var(--gray-400); margin-top: 0.4rem; }
.external-link {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.5rem 1.1rem; border: 1.5px solid var(--black);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  white-space: nowrap; transition: background 0.2s, color 0.2s;
}
.external-link::after { content: '↗'; }
.external-link:hover { background: var(--black); color: var(--white); }

/* Publications */
.pub-list { display: flex; flex-direction: column; }
.pub-item {
  display: grid; grid-template-columns: 52px 110px 1fr auto; gap: 1.25rem;
  padding: 1.2rem 0; border-bottom: 1px solid var(--gray-200); align-items: start;
}
.pub-item:first-child { border-top: 1px solid var(--gray-200); }
.pub-year { font-size: 0.82rem; font-weight: 700; color: var(--gray-400); }
.pub-type { font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray-400); padding-top: 2px; }
.pub-place { font-size: 0.68rem; text-transform: uppercase; color: var(--gray-400); line-height: 1.4; }
.pub-title { font-size: 0.86rem; font-weight: 500; line-height: 1.5; margin-bottom: 0.25rem; }
.pub-authors { font-size: 0.76rem; color: var(--gray-400); line-height: 1.4; }
.pub-link { display: inline-flex; align-items: center; gap: 0.2rem; font-size: 0.76rem; color: var(--gray-400); white-space: nowrap; align-self: center; transition: color 0.2s; }
.pub-link::after { content: '↗'; }
.pub-link:hover { color: var(--black); }
.pub-link--none { color: var(--gray-300); }
.pub-link--none::after { content: ''; }

@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 880px) {
  :root { --sidebar-w: 0; }

  .mobile-bar {
    display: flex; align-items: center; justify-content: space-between;
    position: sticky; top: 0; z-index: 50;
    height: 60px; padding: 0 1.25rem;
    background: rgba(255,255,255,0.97); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--gray-200);
  }
  .mobile-logo img { height: 34px; width: auto; }

  .layout { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: 78%; max-width: 320px; z-index: 90;
    transform: translateX(-100%); transition: transform 0.3s ease;
    box-shadow: 0 0 40px rgba(0,0,0,0.12);
  }
  .sidebar.is-open { transform: translateX(0); }

  .sidebar-backdrop {
    display: block; position: fixed; inset: 0; z-index: 80;
    background: rgba(0,0,0,0.35); opacity: 0; pointer-events: none; transition: opacity 0.3s;
  }
  .sidebar-backdrop.is-visible { opacity: 1; pointer-events: all; }

  .cat-card { grid-template-columns: 1fr; gap: 0.85rem; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-info { position: static; }
  .team-grid { grid-template-columns: 1fr; max-width: 420px; }
  /* En mobile, la description de catégorie réapparaît dans le contenu */
  .cat-desc-mobile { display: block; font-size: 0.88rem; line-height: 1.7; color: var(--gray-600); margin-top: 1rem; }
}

@media (max-width: 520px) {
  .pub-item { grid-template-columns: 48px 1fr; }
  .pub-type { grid-column: 2; }
  .pub-content { grid-column: 1 / -1; }
  .pub-link { grid-column: 1 / -1; align-self: start; }
  .award-item { grid-template-columns: 1fr; gap: 1rem; }
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}