:root{
  --bg-dark: #000;
  --text: #fff;

  --glass: rgba(255,255,255,0.06);
  --glass-strong: rgba(255,255,255,0.09);
  --border: rgba(255,255,255,0.10);
  --border-strong: rgba(255,255,255,0.18);

  --shadow: 0 18px 40px rgba(0,0,0,0.45);

  --max-width: 1200px;
  --page-x: clamp(16px, 3vw, 56px);

  --grad-a: rgba(70,72,255,0.95);
  --grad-b: rgba(255,114,98,0.90);
  --grad-c: rgba(255,174,165,0.70);
  --gradient-primary: linear-gradient(135deg, var(--grad-a), var(--grad-b), var(--grad-c));
}

/* ===============================
   Reset
=============================== */
*{ margin:0; padding:0; box-sizing:border-box; }
html, body{
  font-family: 'Epilogue', sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
}
html{ scroll-behavior: smooth; }
a{ color: inherit; }

/* Fond discret harmonisé */
body::before{
  content:"";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 20% 15%, rgba(70,72,255,0.18), transparent 45%),
    radial-gradient(circle at 80% 20%, rgba(255,114,98,0.14), transparent 45%),
    radial-gradient(circle at 55% 85%, rgba(255,174,165,0.12), transparent 50%),
    linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,1));
}
body > *{
  position: relative;
  z-index: 1;
}

main{
  margin-top: 50px; /* tu gardes si header fixed */
}

/* Focus visible (clavier) */
a:focus-visible,
button:focus-visible,
select:focus-visible,
textarea:focus-visible,
input:focus-visible{
  outline: 3px solid rgba(70,72,255,0.45);
  outline-offset: 3px;
  border-radius: 12px;
}

/* ===============================
   Layout global projet
=============================== */
.project-overview{
  max-width: var(--max-width);
  margin: 1.6rem auto;
  padding-inline: var(--page-x);
}

/* Deux colonnes propres (media + infos) */
.top-row{
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.25rem;
  align-items: start;
}

/* ===============================
   Media : carte glass + no black bars
=============================== */
.video-container{
  position: relative;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 0.75rem;
  overflow: hidden;
}

.big-video{
  width: 100%;
  display: block;

  max-height: 70vh;
  border-radius: 1rem;

  /* IMPORTANT : évite les “bordures/noir” */
  background: transparent;

  /* Tu gardes contain pour ne pas recadrer */
  object-fit: contain;
}

/* Bouton fullscreen (si tu l'utilises) */
.fullscreen-btn{
  position: absolute;
  bottom: 14px;
  right: 14px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-weight: 700;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.video-container:hover .fullscreen-btn{
  opacity: 1;
  transform: translateY(-2px);
}

/* ===============================
   Colonne texte : carte glass + hiérarchie
=============================== */
.right-column{
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1.15rem 1.15rem 1.25rem;
}

.right-column h2{
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
}

/* Texte court : plus agréable + pas pavé */
.right-column > p{
  color: rgba(255,255,255,0.82);
  font-size: 1.02rem;
  line-height: 1.75;
  max-width: 65ch;
  margin-bottom: 0.9rem;

  /* anti pavé : clamp */
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* CTA En savoir plus : bouton glass (cohérent) */
.learn-more{
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;

  padding: 0.65rem 0.95rem;
  border-radius: 999px;

  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.06);
  text-decoration: none;

  font-weight: 650;
  letter-spacing: -0.01em;
  color: rgba(255,255,255,0.95);

  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  margin-bottom: 0.9rem;
}
.learn-more::after{
  content: "→";
  opacity: 0.9;
}
.learn-more:hover{
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.24);
  background: rgba(255,255,255,0.09);
}

/* ===============================
   Détails : sections en cartes (plus de pavés)
=============================== */
.detailed-text{
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity .4s ease, max-height .4s ease;
}

.project-overview.expanded .detailed-text{
  opacity: 1;
  max-height: 4000px;
}

.detailed-text{
  display: grid;
  gap: 0.9rem;
  margin-top: 0.25rem;
}

/* Chaque section devient une “mini card” */
.detailed-text section{
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 1rem;
  padding: 0.9rem 0.95rem;
}

/* Titres sections : plus impact */
.detailed-text h3{
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 0.45rem;

  /* petit accent */
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

/* Paragraphes : largeur + couleur */
.detailed-text p{
  color: rgba(255,255,255,0.80);
  line-height: 1.8;
  max-width: 75ch;
}

/* Listes : lisibles, pas compactées */
.detailed-text ul{
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

.detailed-text li{
  color: rgba(255,255,255,0.82);
  line-height: 1.65;
  position: relative;
  padding-left: 1.05rem;
}

.detailed-text li::before{
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: rgba(255,255,255,0.55);
}

/* Mettre en valeur “code” apprentissages critiques */
.detailed-text li strong{
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  margin-right: 0.35rem;
  font-weight: 800;

  border: 1px solid rgba(70,72,255,0.22);
  background: rgba(70,72,255,0.12);
  color: rgba(255,255,255,0.95);
}

/* Tags : chips cohérentes */
.tag-pill{
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.92);
  white-space: nowrap;
  margin: 0.2rem 0.35rem 0 0;
}
.detailed-text section:nth-of-type(4) .tag-pill:nth-child(3n+1){
  background: rgba(70,72,255,0.14);
  border-color: rgba(70,72,255,0.25);
}
.detailed-text section:nth-of-type(4) .tag-pill:nth-child(3n+2){
  background: rgba(255,114,98,0.14);
  border-color: rgba(255,114,98,0.25);
}
.detailed-text section:nth-of-type(4) .tag-pill:nth-child(3n+3){
  background: rgba(255,174,165,0.12);
  border-color: rgba(255,174,165,0.22);
}

/* ===============================
   Mode expanded : meilleure mise en page
   (tu gardes ton idée 75% mais plus propre)
=============================== */
.project-overview.expanded .top-row{
  grid-template-columns: 1fr;
  justify-items: center;
}

.project-overview.expanded .video-container{
  width: min(980px, 100%);
}

.project-overview.expanded .right-column{
  width: min(980px, 100%);
  margin-top: 0.5rem;
}

/* en expanded : on cache le texte court (tu l’avais déjà) */
.project-overview.expanded .right-column > p{
  display: none;
}

/* ===============================
   Carousel : glass + médias sans noir
=============================== */
.carousel{
  max-width: var(--max-width);
  margin: 1.6rem auto 0;
  padding-inline: var(--page-x);

  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  padding: 0.75rem;
  position: relative;
  overflow: hidden;
}

.carousel__track-container{
  overflow: hidden;
  border-radius: 1rem;
  background: transparent;
  max-height: 500px;
}

.carousel__track{
  display: flex;
  transition: transform .5s ease;
  list-style: none;
  padding: 0;
  margin: 0;
}

.carousel__slide{
  min-width: 100%;
  box-sizing: border-box;
}

.carousel__slide img,
.carousel__slide video{
  width: 100%;
  display: block;
  border-radius: 1rem;
  max-height: 500px;

  /* pas de noir : fond transparent */
  background: transparent;

  /* contient = pas recadré */
  object-fit: contain;
}

/* Boutons carousel : glass */
.carousel__btn{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 2rem;
  padding: 0.1rem 0.65rem;
  cursor: pointer;
  z-index: 10;
  border-radius: 999px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.carousel__btn:hover{
  transform: translateY(-50%) scale(1.04);
  border-color: rgba(255,255,255,0.24);
  background: rgba(255,255,255,0.11);
}
.carousel__btn--left{ left: 12px; }
.carousel__btn--right{ right: 12px; }

/* ===============================
   Gestion (concepteur) : harmonisé glass
=============================== */
.manage-images{
  max-width: var(--max-width);
  margin: 2rem auto;
  padding-inline: var(--page-x);

  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.manage-images h2{
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  margin-bottom: 0.25rem;
}

/* Inputs cohérents */
.edit-form,
.upload-form{
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.edit-form input[type="text"],
.edit-form textarea,
.upload-form input[type="file"]{
  width: 100%;
  background: rgba(255,255,255,0.06);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  padding: 0.8rem;
  font-family: inherit;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.edit-form textarea{ min-height: 140px; resize: vertical; }

.edit-form input:focus,
.edit-form textarea:focus,
.upload-form input:focus{
  border-color: rgba(255,114,98,0.55);
  background: rgba(255,255,255,0.08);
  outline: none;
}

.edit-form button,
.upload-form button,
.delete-project-form button,
.form-new button,
.form-reply button{
  align-self: flex-start;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 999px;

  background:
    linear-gradient(rgba(255,255,255,0.10), rgba(255,255,255,0.04)) padding-box,
    radial-gradient(circle at 20% 30%, rgba(70,72,255,0.22), transparent 60%) padding-box,
    radial-gradient(circle at 80% 50%, rgba(255,114,98,0.18), transparent 62%) padding-box,
    linear-gradient(135deg, var(--grad-a), var(--grad-b), var(--grad-c)) border-box;

  background-origin: border-box;
  background-clip: padding-box, padding-box, padding-box, border-box;

  color: #fff;
  padding: 0.7rem 1rem;
  font-weight: 800;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.edit-form button:hover,
.upload-form button:hover,
.delete-project-form button:hover,
.form-new button:hover,
.form-reply button:hover{
  transform: translateY(-2px);
  opacity: 0.95;
}

/* Liste médias */
.image-list{
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.image-item{
  position: relative;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 12px;
  padding: 0.6rem;
}
.image-item img,
.image-item video{
  border-radius: 10px;
  max-width: 220px;
  display: block;
  background: transparent;
}

/* Delete image button */
.delete-form{
  position: absolute;
  top: 8px;
  right: 8px;
}
.delete-form button{
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255, 0, 0, 0.68);
  color: #fff;
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  font-weight: 800;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.delete-form button:hover{
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ===============================
   Discussion : glass + bulles lisibles
=============================== */
#discussion{
  max-width: var(--max-width);
  margin: 2rem auto;
  padding-inline: var(--page-x);

  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  padding: 1.2rem;
}

#discussion h3{
  margin-bottom: 1rem;
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

/* Messages */
.message{
  display: flex;
  flex-direction: column;
  gap: 0.4rem;

  margin-bottom: 1rem;
  padding: 0.95rem;

  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 1rem;
}

.message.eval{ border-left: 4px solid rgba(70,72,255,0.85); }
.message.conc{ border-left: 4px solid rgba(255,114,98,0.85); }

.message .meta{
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.message .meta strong{
  font-size: 0.95rem;
  font-weight: 800;
}

.message .meta em{
  font-style: normal;
  font-size: 0.8rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.86);
}

.message .meta time{
  margin-left: auto;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
}

.message p{
  color: rgba(255,255,255,0.82);
  line-height: 1.75;
}

/* Replies */
.reply{
  margin-left: 1.6rem;
  margin-top: 0.65rem;
  padding: 0.85rem;

  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 1rem;
}

.reply.eval{ border-left: 4px solid rgba(70,72,255,0.75); }
.reply.conc{ border-left: 4px solid rgba(255,114,98,0.75); }

.reply .meta{
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.35rem;
}
.reply .meta time{
  margin-left: auto;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
}
.reply p{
  color: rgba(255,255,255,0.80);
  line-height: 1.7;
}

/* Formulaires discussion */
.form-new,
.form-reply{
  margin-top: 1rem;
}

.form-new textarea,
.form-reply textarea{
  width: 100%;
  min-height: 4.5em;
  padding: 0.85rem;

  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  color: #fff;
  resize: vertical;

  transition: border-color 0.2s ease, background 0.2s ease;
}

.form-new textarea:focus,
.form-reply textarea:focus{
  border-color: rgba(70,72,255,0.45);
  background: rgba(255,255,255,0.08);
  outline: none;
}

/* ===============================
   Responsive
=============================== */
@media (max-width: 1024px){
  .top-row{
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px){
  .reply{ margin-left: 1rem; }
}

/* ===============================
   Reduced motion
=============================== */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ transition: none !important; }
}