:root{--bg:#f3f1ec;--surface:#fff;--text:#1b1a17;--muted:#6d6a62;--border:#d9d5cb;--accent:#2f5bea;--on:#fff;--pool:#e9e6de;--danger:#c0392b;--s:clamp(54px,min(4.7vw,9.7vh),130px)}
@media(prefers-color-scheme:dark){:root{--bg:#17171a;--surface:#222226;--text:#f1efe9;--muted:#9a978f;--border:#3a3a40;--accent:#7a9bff;--on:#0f1226;--pool:#1e1e22;--danger:#ff7a6b}}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,"Segoe UI",sans-serif}
h1{font-size:26px;margin:8px 0 14px}h2{font-size:16px;margin:0 0 8px}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:7px 12px}
button:hover{border-color:var(--accent)}
button.pri{background:var(--accent);color:var(--on);border-color:var(--accent);font-weight:600}
button.danger{color:var(--danger)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input{padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:var(--bg);min-width:0}
label{display:block;font-weight:600;margin:10px 0 4px}label input{display:block;width:100%;font-weight:400;margin-top:4px}

.top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border)}
.brand{font-weight:800;font-size:20px;color:inherit;text-decoration:none}
nav{display:flex;gap:4px;flex:1}
nav a{padding:6px 12px;border-radius:8px;color:var(--muted);text-decoration:none}
nav a.on{background:var(--bg);color:var(--text);font-weight:600}
#user{display:flex;gap:8px;align-items:center}
main{padding:16px clamp(20px,7vw,200px) 80px}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:10px 0}
.row input{flex:1;min-width:160px}
.msg{min-height:1.4em;margin:0;color:var(--muted)}.msg.bad{color:var(--danger)}
.err{color:var(--danger);min-height:1.4em;margin:8px 0 0}

#board,#vboard{border:2px solid var(--text);border-radius:6px;overflow:hidden;background:var(--surface)}
.tier{display:flex;min-height:calc(var(--s)*1.22);border-bottom:2px solid var(--text)}
.tier:last-child{border-bottom:0}
.lab{position:relative;width:calc(var(--s)*1.4);flex:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:8px;text-align:center;font-weight:800;font-size:calc(var(--s)*.25);line-height:1.1;word-break:break-word}
.lab .edit{position:absolute;top:4px;right:4px;width:22px;height:22px;padding:0 0 1px;display:flex;align-items:center;justify-content:center;border:0;border-bottom:2px solid transparent;border-radius:0;background:none;color:inherit;opacity:.65}
.lab .edit:hover,.lab .edit:focus-visible{opacity:1;border-bottom-color:currentColor}
.drop{flex:1;display:flex;flex-wrap:wrap;align-content:center;gap:4px;padding:4px 6px}
.drop.over,#pool.over{background:color-mix(in srgb,var(--accent) 18%,transparent)}
.item{width:var(--s);height:var(--s);flex:none;position:relative;border-radius:4px;background:var(--pool);border:2px solid transparent;display:flex;align-items:center;justify-content:center;text-align:center;font-weight:600;font-size:calc(var(--s)*.18);line-height:1.15;padding:4px;word-break:break-word;overflow:hidden;cursor:grab;user-select:none;-webkit-user-select:none}
.item.sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.item.drag{opacity:.35}
.item .x{position:absolute;top:1px;right:1px;width:20px;height:20px;padding:0;border-radius:50%;background:rgba(0,0,0,.7);color:#fff;border:0;font-size:13px;line-height:20px;display:none}
.item:hover .x,.item.sel .x{display:block}
.ro .item{cursor:default}
.layout{display:grid;grid-template-columns:minmax(0,1fr) calc(var(--s)*3);gap:clamp(18px,2.2vw,40px);align-items:start}
.titlebar{display:flex;align-items:stretch;margin-bottom:14px;border:1px solid var(--border);border-radius:8px;background:var(--surface);overflow:hidden}
.titlebar label{margin:0;padding:8px 16px;display:flex;align-items:center;font-weight:700;background:var(--bg);border-right:1px solid var(--border)}
.titlebar input{flex:1;min-width:0;border:0;border-radius:0;background:var(--surface);padding:8px 12px}
.titlebar input:focus-visible{outline-offset:-2px}
.titlebar button{border:0;border-radius:0;padding:8px 22px}
.side,.titlebar{font-size:clamp(14px,calc(var(--s)*.21),19px)}
.side{display:flex;flex-direction:column;gap:14px}
.box{display:flex;flex-direction:column;gap:6px;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:12px}
.box h3{margin:0 0 4px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.box button{text-align:left}
.box input{width:100%}
.add{display:flex}
.add input{flex:1;width:auto;border-radius:8px 0 0 8px;border-right:0}
.add button{text-align:center;border-radius:0 8px 8px 0;background:var(--accent);color:var(--on);border-color:var(--accent);padding:6px 14px;font-weight:700}
#v-view{max-width:1100px}
#pool{display:flex;flex-wrap:wrap;gap:4px;align-content:flex-start;margin-top:8px;padding:4px;min-height:calc(var(--s)*2 + 12px);border-radius:8px}
#pool:empty::before{content:"Les éléments à classer apparaîtront ici.";color:var(--muted);padding:6px}

dialog{border:1px solid var(--border);border-radius:14px;background:var(--surface);color:var(--text);padding:18px;width:min(380px,92vw)}
dialog::backdrop{background:rgba(0,0,0,.5)}
.dlg-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;justify-content:space-between}.dlg-actions.end{justify-content:flex-end}
.sw{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.swc{width:28px;height:28px;padding:0;border-radius:6px;border:2px solid var(--border)}.swc.on{border-color:var(--text)}
.tabs{display:flex;gap:6px}.tabs button.on{background:var(--accent);color:var(--on);border-color:var(--accent)}

#list{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(340px,100%),1fr));gap:14px}
.card{display:block;min-width:0;padding:12px 14px;background:var(--surface);border:1px solid var(--border);border-radius:12px;color:inherit;text-decoration:none}
.card:hover{border-color:var(--accent)}.card b,.card span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card span{color:var(--muted);font-size:13px}
#vhead{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:12px}
#vhead h1{margin:0;word-break:break-word}#vhead p{margin:0;color:var(--muted)}
@media(max-width:900px){.layout{grid-template-columns:1fr}.side{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}}
@media(max-width:560px){:root{--s:62px}.lab{width:72px;font-size:15px}.item{font-size:12px}}

/* Aperçu miniature dans la galerie */
.mini{--s:40px;position:relative;margin-top:10px;max-height:250px;overflow:hidden;border:1px solid var(--text);border-radius:4px;background:var(--surface)}
.mini .tier{border-bottom-width:1px}
.mini .lab{width:56px;padding:3px;font-size:10px}
.mini .item{font-size:9px;padding:2px;border-width:1px;border-radius:3px}
.mini.cut::after{content:"";position:absolute;inset:auto 0 0;height:40px;background:linear-gradient(transparent,var(--surface));pointer-events:none}
.card .ro .item{cursor:pointer}
.acts{display:flex;flex-wrap:wrap;gap:8px}
#vhead .from{margin-top:2px}
#vhead .from a{color:var(--accent)}