:root{
  --bg: #020617; /* Slate 950 */
  --bg2:#0f172a; /* Slate 900 */
  --txt: #f8fafc; /* Slate 50 */
  --muted:#94a3b8; /* Slate 400 */
  --blue: #38bdf8; /* Light Blue 400 */
  --blue-hover: #0ea5e9; /* Light Blue 500 */
  
  --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.5);
  --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.6);
  --shadow-lg: 0 25px 50px -12px rgba(0,0,0,0.8);
  --shadow-glow: 0 10px 30px rgba(56, 189, 248, 0.2);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  color: var(--txt);
  background:
    radial-gradient(1200px 700px at 20% 10%, rgba(56,189,248,.10), transparent 60%),
    radial-gradient(900px 600px at 90% 30%, rgba(129,140,248,.08), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  overflow-x: hidden;
}
a{color:inherit; text-decoration:none}
.wrap{max-width:1100px; margin:0 auto; padding:24px 18px 64px}

/* Topbar */
.top{
  position:sticky; top:0; z-index:50;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  background: rgba(2,6,23,.75);
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.top__inner{
  max-width:1100px; margin:0 auto;
  padding:16px 20px;
  display:flex; align-items:center; justify-content:space-between;
  gap:12px;
}
.brand{display:flex; gap:16px; align-items:center}
.brand__logo{
  width:48px; height:48px; border-radius:12px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, var(--blue-hover), var(--blue));
  box-shadow: var(--shadow-glow);
  font-weight:800;
  font-size:16px;
  color:#fff;
}
.brand__name{font-weight:700; font-size:18px; letter-spacing:-0.02em}
.brand__tag{font-size:13px; color:var(--muted); font-weight:500}
.top__nav{display:flex; gap:12px; align-items:center}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 20px;
  border-radius: 12px;
  background: var(--txt);
  color: var(--bg);
  box-shadow: var(--shadow-sm);
  font-weight:600;
  font-size:15px;
  transition: all 0.2s ease;
}
.btn:hover{
  background: var(--blue);
  color: #fff;
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}
.btn.ghost{
  background: rgba(255,255,255,.05); 
  box-shadow:none;
  color: var(--txt);
  border: 1px solid rgba(255,255,255,.1);
}
.btn.ghost:hover{
  background: rgba(255,255,255,.1);
}
.btn.small{padding:10px 16px; font-size:14px; border-radius: 10px}

/* Hero */
.hero{padding:80px 0 60px}
.hero__grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:32px;
  align-items:center;
}
.pill{
  display:inline-flex;
  padding:8px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  color: var(--muted);
  font-weight: 500;
  font-size:14px;
  width: fit-content;
}
h1{margin:16px 0 12px; font-size: clamp(36px, 4vw, 56px); line-height:1.1; letter-spacing: -0.04em; font-weight:800;}
.aka{font-weight:600; opacity:.5; font-size:.7em}
.handle{
  background: linear-gradient(to right, var(--blue), #818cf8);
  -webkit-background-clip:text; background-clip:text;
  color: transparent;
}
.lead{color:var(--muted); font-size:18px; line-height:1.6; max-width: 54ch; font-weight:400;}
.hero__cta{display:flex; gap:16px; flex-wrap:wrap; margin-top:32px}

/* Avatar card */
.avatarCard{
  position:relative;
  border-radius: 24px;
  background: rgba(15,23,42,.4);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border:1px solid rgba(255,255,255,.08);
  box-shadow: var(--shadow-lg);
  padding:32px 24px;
  overflow:hidden;
}
.avatarCard__ring{
  position:absolute; inset:-60px -90px auto auto;
  width:220px; height:220px; border-radius: 999px;
  background: radial-gradient(circle at 35% 35%, rgba(56,189,248,.3), transparent 60%);
  filter: blur(24px);
}
.avatarCard__sprite{width:240px; margin: 0 auto 16px; display:grid; place-items:center}
.avatarCard__sprite img{width:100%; height:auto; filter: drop-shadow(0 20px 30px rgba(0,0,0,.5));}
.avatarCard__label{text-align:center}
.avatarCard__name{font-weight:700; font-size: 18px;}
.avatarCard__sub{font-size:14px; color:var(--muted); margin-top:4px;}

/* Timeline base */
.timeline{ position:relative; margin-top: 10px; padding: 22px 0 6px; }
.line{
  position:absolute;
  left:50%;
  top:0; bottom:0;
  width:2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(255,255,255,.18), transparent);
}

/* Distinction entre projets */
.node{
  position:relative;
  display:grid;
  grid-template-columns: 1fr 70px 1fr;
  align-items:center;
  min-height: 560px;
  padding: 22px 0;
}
.sep{
  position:absolute;
  left: 10%;
  right: 10%;
  top: 6px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.10), transparent);
  opacity:.9;
}

.dot{
  grid-column:2;
  width:14px; height:14px;
  margin:0 auto;
  border-radius:999px;
  background: rgba(45,124,255,.95);
  box-shadow: 0 0 0 8px rgba(45,124,255,.12);
}
.step{
  position:absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  font-weight:900;
  letter-spacing: .12em;
  color: rgba(255,255,255,.25);
  font-size: 14px;
}

/* Card placement desktop */
.node--left .card{grid-column:1; justify-self:end;}
.node--right .card{grid-column:3; justify-self:start;}

.card{
  border-radius: 24px;
  background: rgba(15,23,42,.4);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border:1px solid rgba(255,255,255,.05);
  box-shadow: var(--shadow-md);
  padding:32px 32px 24px;
  max-width: 480px;
  outline: none;
  transition: all 0.3s ease;
}
.node.is-active .card, .card:hover{
  border-color: rgba(56,189,248,.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.card__head h2{margin:0; font-size:26px; letter-spacing:-0.02em}
.tag{
  margin-top:12px;
  font-size:13px;
  color: var(--blue);
  font-weight:500;
  padding:6px 14px;
  border-radius: 999px;
  width: fit-content;
  background: rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.2);
}
.card__desc{margin:16px 0; color: var(--muted); line-height:1.6; font-size:15px;}
.stack{
  font-size:13px;
  color: var(--txt);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding:8px 14px;
  border-radius: 8px;
  background: rgba(0,0,0,.4);
  border:1px solid rgba(255,255,255,.08);
  display:inline-flex;
}
.media{
  position:relative;
  margin-top: 24px;
  border-radius: 16px;
  overflow:hidden;
  background: #020617;
  border:1px solid rgba(255,255,255,.10);
  box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
}
.vid{width:100%; height: 260px; display:block; object-fit: cover; opacity: .85; transition: opacity 0.3s;}
.media:hover .vid{ opacity: 1; }
.media__hint{
  position:absolute; left:16px; bottom:16px;
  font-size:12px;
  padding:6px 12px;
  border-radius:999px;
  background: rgba(15,23,42,.8);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  border:1px solid rgba(255,255,255,.1);
  font-weight:600;
}
.card__actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 24px}

/* Presenter animation simplified */
.presenter{
  position:absolute;
  top:50%;
  width: 260px;
  opacity: 0;
  transform: translateY(-50%) translateX(20px);
  transition: opacity .3s cubic-bezier(0.2, 0.8, 0.2, 1), transform .3s cubic-bezier(0.2, 0.8, 0.2, 1);
  pointer-events:none;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,.6));
}
.node--left .presenter { transform: translateY(-50%) translateX(-20px); }

.presenterImg{
  width: 260px;
  height:auto;
  display:block;
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 55%, transparent 80%);
  mask-image: radial-gradient(circle at 50% 50%, #000 55%, transparent 80%);
}

.presenterLeft, .presenterLabelLeft{ display:none; }

.node--right .presenter{ right: calc(50% + 100px); } 
.node--left  .presenter{ left:  calc(50% + 100px); } 

.node--right .presenterRight{ display:block; }
.node--right .presenterLeft{ display:none; }
.node--right .presenterLabel{ display:block; }
.node--right .presenterLabelLeft{ display:none; }

.node--left .presenterRight{ display:none; }
.node--left .presenterLeft{ display:block; }
.node--left .presenterLabel{ display:none; }
.node--left .presenterLabelLeft{ display:block; }

.presenter::after{
  content:"";
  position:absolute;
  top:50%;
  width:140px;
  height:1px;
  background: linear-gradient(90deg, rgba(56,189,248,.0), rgba(56,189,248,.5), rgba(255,255,255,.1));
}
.node--right .presenter::after{ right:-130px; transform: translateY(-50%); }
.node--left  .presenter::after{ left:-130px; transform: translateY(-50%) rotate(180deg); }

.presenterLabel, .presenterLabelLeft{
  position:absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--txt);
  background: rgba(15,23,42,.8);
  border: 1px solid rgba(255,255,255,.1);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.presenterLabel span, .presenterLabelLeft span{ color: var(--blue); font-weight:700; }

.node:hover .presenter,
.node:focus-within .presenter{
  opacity:1;
  transform: translateY(-50%) translateX(0);
}

@media (hover: none), (pointer: coarse), (max-width: 900px){
  .presenter, .presenterLabel, .presenterLabelLeft{ display:none !important; }
}
@media (prefers-reduced-motion: reduce){
  .presenter{ transition:none; }
}

/* Contact + footer */
.contact{
  margin-top: 64px;
  padding: 48px;
  border-radius: 24px;
  background: rgba(15,23,42,.4);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border:1px solid rgba(255,255,255,.05);
  box-shadow: var(--shadow-lg);
}
.contact h2 { font-size: 32px; letter-spacing:-0.03em; margin-bottom:16px; }
.contact p{color:var(--muted); line-height:1.6; max-width: 70ch; font-size: 18px;}
.contact__actions{display:flex; gap:16px; flex-wrap:wrap; margin-top:24px}
.foot{ margin-top: 48px; padding: 32px 12px; border-top: 1px solid rgba(255,255,255,.05); color: var(--muted); display:flex; gap:16px; flex-wrap:wrap; align-items:center; justify-content:center; }
.sepDot{opacity:.4}

/* -------- MOBILE: stable + tous les projets visibles -------- */
@media (max-width: 900px){
  .hero__grid{grid-template-columns:1fr;}

  .line{left: 18px; transform:none}

  .node{
    grid-template-columns: 36px 1fr;
    min-height: 0;
    padding: 14px 0;
    align-items:start;
  }

  .sep{
    left: 0;
    right: 0;
    top: 0;
  }

  .dot{
    grid-column:1;
    margin: 10px auto 0;
  }

  /* IMPORTANT: override left/right */
  .node--left .card,
  .node--right .card{
    grid-column: 2 !important;
    justify-self: stretch !important;
    max-width: none !important;
  }

  .step{
    left: 18px;
    transform:none;
    top: 6px;
    font-size: 12px;
  }

  .vid{height: 200px;}
}
/* Contact layout + avatar */
.contact{
  position:relative;
  overflow:hidden;
}

.contact__grid{
  display:grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items:center;
}

.contact__content h2{ margin-top:0; }

.contact__avatar{
  position:relative;
  width: 280px;
  height: 280px;
  margin-left:auto;
  display:grid;
  place-items:center;
}

.contact__avatar img{
  width: 260px;
  height:auto;
  display:block;
  filter: drop-shadow(0 25px 45px rgba(0,0,0,.6));
  border-radius: 24px;
  -webkit-mask-image: radial-gradient(circle at 45% 45%, #000 62%, transparent 86%);
  mask-image: radial-gradient(circle at 45% 45%, #000 62%, transparent 86%);
}

.contact__ring{
  position:absolute;
  inset:auto;
  width: 380px;
  height: 380px;
  border-radius: 999px;
  background: radial-gradient(circle at 35% 35%, rgba(56,189,248,.25), transparent 60%);
  filter: blur(8px);
  opacity: .9;
}

.contact__badge{
  position:absolute;
  bottom: 0px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  color: var(--txt);
  background: rgba(15,23,42,.8);
  border: 1px solid rgba(255,255,255,.1);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}

/* Mobile */
@media (max-width: 900px){
  .contact__grid{
    grid-template-columns: 1fr;
    text-align:left;
  }
  .contact__avatar{
    width: 100%;
    height: auto;
    margin: 24px auto 0;
  }
  .contact__avatar img{
    width: min(280px, 80vw);
    margin: 0 auto;
  }
  .contact__ring{
    width: 260px;
    height: 260px;
  }
}
.fsBtn{
  position:absolute;
  top:10px;
  right:10px;
  z-index:3;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(7,16,31,.55);
  color: rgba(255,255,255,.92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 18px 45px rgba(0,0,0,.35);
  opacity: .0;
  transform: translateY(2px);
  transition: opacity .18s ease, transform .18s ease;
}

.media:hover .fsBtn{ opacity: 1; transform: translateY(0); }

/* Mobile/touch: on laisse visible (pas de hover) */
@media (hover: none), (pointer: coarse){
  .fsBtn{ opacity: 1; transform:none; }
}

.fsBtn:active{ transform: translateY(1px); }