:root{
  --gold:#d8bd7a;
  --gold-soft:rgba(216,189,122,.72);
  --white:#f8f7f2;
  --glass:rgba(255,255,255,.12);
  --deep:rgba(9,9,10,.48);
  --shadow:rgba(0,0,0,.28);
}

*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Georgia,'Times New Roman',serif;background:#060606;color:var(--white);overflow:hidden}
button{font:inherit;color:inherit}

.museum-room{position:relative;width:100vw;height:100vh;isolation:isolate;background:#111;overflow:hidden}
.room-bg{position:absolute;inset:0;background-image:var(--room-image);background-size:cover;background-position:center;transform:scale(1.02);transition:background-image .55s ease, transform .8s ease, filter .55s ease;z-index:-3}
.veil{position:absolute;inset:0;background:radial-gradient(circle at center, rgba(255,255,255,.03), rgba(0,0,0,.12) 55%, rgba(0,0,0,.42));z-index:-2;pointer-events:none}
.room-hall{--room-image:url('../assets/images/hall-lumi.jpg')}
.room-gallery{--room-image:url('../assets/images/gallery-white.jpg')}
.room-pedestal{--room-image:url('../assets/images/pedestal.jpg')}
.room-portrait{--room-image:url('../assets/images/artwork-portrait.jpg')}
.room-landscape{--room-image:url('../assets/images/artwork-landscape.jpg')}



.brand-panel{
position:absolute;
top:4.5vh;
left:50%;
transform:translateX(-50%);
display:flex;
align-items:center;
gap:16px;padding:14px 28px;border:1px solid rgba(255,255,255,.22);
background:rgba(255,255,255,.08);
backdrop-filter:blur(16px);
box-shadow:0 18px 60px var(--shadow);
border-radius:999px;
text-align:center;
opacity:0;
pointer-events:none;
transition:opacity .35s ease;
}

.brand-panel.visible{
opacity:1;
}

.brand-mark{width:38px;height:38px;border:1px solid var(--gold-soft);border-radius:50%;display:grid;place-items:center;color:var(--gold);text-shadow:0 0 14px rgba(216,189,122,.9)}

/* LUMI MUSEUM — TITRE PRINCIPAL */

h1{
margin:0;
font-size:clamp(32px,4.2vw,40px);
letter-spacing:.18em;
font-weight:400;
line-height:.95;
text-shadow:0 0 25px rgba(255,255,255,.26)
}

/* LUMI MUSEUM — SOUS TITRE */

.brand-panel p{
margin:6px 0 0;
font-family:Arial,Helvetica,sans-serif;
font-size:clamp(10px,1.1vw,12px);
letter-spacing:.22em;
text-transform:uppercase;
color:rgba(255,255,255,.84)
}

.menu-toggle{position:absolute;right:32px;top:32px;width:54px;height:54px;border-radius:50%;border:1px solid var(--gold-soft);background:rgba(10,10,10,.28);backdrop-filter:blur(12px);box-shadow:0 0 22px rgba(216,189,122,.25);cursor:pointer;font-size:24px}
.side-menu{position:absolute;right:30px;top:98px;display:flex;flex-direction:column;gap:10px;opacity:0;transform:translateX(20px);pointer-events:none;transition:.25s ease}
.side-menu.open{opacity:1;transform:none;pointer-events:auto}
.side-menu button{border:1px solid rgba(216,189,122,.46);background:rgba(8,8,8,.34);backdrop-filter:blur(14px);border-radius:999px;padding:11px 18px;min-width:160px;cursor:pointer;font-family:Arial,Helvetica,sans-serif;text-transform:uppercase;font-size:12px;letter-spacing:.13em;text-align:left;box-shadow:0 12px 32px rgba(0,0,0,.22)}
.side-menu button:hover,.hotspot:hover{box-shadow:0 0 0 1px rgba(255,255,255,.25),0 0 35px rgba(216,189,122,.4);transform:translateY(-2px)}

.hotspot-layer{
position:absolute;
inset:0;
pointer-events:none
}

.hotspot{
position:absolute;
pointer-events:auto;
border:1px solid rgba(216,189,122,.55);
background:rgba(16,14,10,.28);
backdrop-filter:blur(12px);
border-radius:999px;
padding:10px 18px;
cursor:pointer;
font-family:Arial,Helvetica,sans-serif;
text-transform:uppercase;
font-size:12px;
letter-spacing:.17em;
transition:.2s ease;
color:#fff;
text-shadow:0 0 12px rgba(255,255,255,.6)
}

.hotspot::before{
content:"";
display:inline-block;
width:10px;
height:10px;
border-radius:50%;
margin-right:10px;
background:var(--gold);
box-shadow:0 0 18px var(--gold)
}

.hotspot-gallery{
left:13%;
top:47%
}

.hotspot-center{
left:50%;
top:88%;
transform:translateX(-50%)
}

.hotspot-info{
right:13%;
top:47%
}

/* Masqués pour la V1 */

.hotspot-gallery,
.hotspot-center,
.hotspot-info{
display:none;
}

/* ===== LUMI MUSEUM - HOTSPOT SON ===== */

.water-toggle{

position:absolute;

left:5%;
bottom:18%;

width:56px;
height:56px;

display:none;

border:none;
border-radius:50%;

cursor:pointer;

background:rgba(255,255,255,.08);

backdrop-filter:blur(10px);

color:#fff;
font-size:22px;

z-index:1000;

box-shadow:
0 0 10px rgba(255,255,255,.35),
0 0 25px rgba(255,255,255,.18),
inset 0 0 10px rgba(255,255,255,.15);

transition:.25s ease;
}

.water-toggle:hover{

transform:scale(1.08);

box-shadow:
0 0 12px rgba(255,255,255,.55),
0 0 35px rgba(255,255,255,.35),
0 0 60px rgba(255,255,255,.15);

}

/* ===== LUMI MUSEUM - ARTISTES ===== */

.artists-toggle{
position:absolute;

left:23%;
bottom:34%;

width:56px;
height:56px;

display:none;

border:none;
border-radius:50%;

background:rgba(255,255,255,.08);
backdrop-filter:blur(10px);

color:#fff;
font-size:20px;

cursor:pointer;
z-index:1000;

box-shadow:
0 0 10px rgba(255,255,255,.35),
0 0 25px rgba(255,255,255,.18);

transition:.25s ease;
}

.artists-toggle:hover{
transform:scale(1.08);
}

.artists-panel{
position:absolute;

left:28%;
bottom:26%;

min-width:220px;

display:none;

padding:16px;

background:rgba(0,0,0,.22);
backdrop-filter:blur(14px);

border:1px solid rgba(255,255,255,.18);
border-radius:18px;

color:#fff;

z-index:1001;
}

.artists-title{
margin-bottom:12px;
font-size:12px;
letter-spacing:.18em;
text-transform:uppercase;
}

.artist-item{
padding:4px 0;
font-size:13px;
}

/* FOOTER */

.lumi-footer{
position:fixed;

bottom:4px;
left:50%;
transform:translateX(-50%);

padding:4px 12px;

font-family:Arial,Helvetica,sans-serif;
font-size:9px;
letter-spacing:.08em;

color:rgba(255,255,255,.65);

background:rgba(0,0,0,.12);
backdrop-filter:blur(6px);

border:1px solid rgba(255,255,255,.08);
border-radius:999px;

text-align:center;
z-index:100;
}

.lumi-footer a{
color:rgba(216,189,122,.95);
text-decoration:none;
}

.lumi-footer a:hover{
color:#fff;
}

.guide-strip{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);display:flex;align-items:center;gap:16px;padding:12px 22px;border:1px solid rgba(255,255,255,.14);background:rgba(0,0,0,.25);backdrop-filter:blur(14px);border-radius:999px;font-family:Arial,Helvetica,sans-serif;text-transform:uppercase;letter-spacing:.16em;font-size:12px;color:rgba(255,255,255,.86)}
.guide-strip b{color:var(--gold)}

.info-panel{position:absolute;left:50%;bottom:82px;transform:translateX(-50%) translateY(18px);width:min(560px,calc(100vw - 34px));padding:24px 28px;border:1px solid rgba(216,189,122,.42);border-radius:26px;background:rgba(10,10,10,.42);backdrop-filter:blur(24px);box-shadow:0 18px 70px rgba(0,0,0,.38);opacity:0;pointer-events:none;transition:.25s ease}
.info-panel.open{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto}
.info-panel h2{margin:0 34px 10px 0;font-weight:400;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.info-panel p{margin:0;font-family:Arial,Helvetica,sans-serif;line-height:1.65;color:rgba(255,255,255,.88)}
.close-panel{position:absolute;right:14px;top:12px;width:34px;height:34px;border:1px solid rgba(255,255,255,.25);border-radius:50%;background:rgba(255,255,255,.08);cursor:pointer;font-size:22px;line-height:1}

/* Préparation future : pancartes sous œuvres */
.art-label{position:absolute;left:50%;bottom:12vh;transform:translateX(-50%);padding:10px 18px;border:1px solid rgba(216,189,122,.44);border-radius:999px;background:rgba(255,255,255,.12);backdrop-filter:blur(14px);font-family:Arial,Helvetica,sans-serif;text-transform:uppercase;letter-spacing:.14em;font-size:12px;display:none}
.room-portrait .art-label,.room-landscape .art-label{display:block}

@media (max-width:760px){
  .brand-panel{top:24px;width:calc(100vw - 32px);justify-content:center;border-radius:24px;padding:14px 16px}
  .brand-mark{display:none}
  h1{font-size:30px;letter-spacing:.12em}
  .brand-panel p{text-align:center;font-size:10px}
  .menu-toggle{right:18px;top:104px;width:48px;height:48px}
  .side-menu{right:18px;top:160px}
  .hotspot{font-size:10px;padding:9px 12px;letter-spacing:.1em}
  .hotspot-gallery{left:18px;top:48%}
  .hotspot-info{right:18px;top:48%}
  .hotspot-center{top:68%}
  .guide-strip{width:calc(100vw - 28px);justify-content:center;bottom:18px;font-size:10px;gap:8px;text-align:center;white-space:normal;border-radius:20px}
}