:root{
  --bg:#0e0f12;
  --bg-alt:#15171b;
  --panel:#1a1d22;
  --panel-alt:#202329;
  --border:#2a2d34;
  --text:#e8e9ec;
  --text-dim:#9aa0aa;
  --blue:#3b6df0;
  --blue-hover:#2f5cd6;
  --green:#3ecf6b;
  --danger:#e5484d;
  --radius:10px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}

/* ---------- LOGIN ---------- */
.login-body{
  display:flex;align-items:center;justify-content:center;height:100vh;
  background:radial-gradient(circle at 50% 20%, #1c2030 0%, #0e0f12 60%);
}
.login-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px;
  width:320px;
  display:flex;flex-direction:column;gap:10px;
}
.login-logo{font-size:18px;font-weight:700;display:flex;gap:8px;align-items:center;margin-bottom:6px;}
.login-card h1{font-size:18px;margin:0 0 8px;}
.login-card label{font-size:12px;color:var(--text-dim);margin-top:6px;}
.login-card input{
  background:var(--panel-alt);border:1px solid var(--border);border-radius:8px;
  padding:10px;color:var(--text);font-size:14px;
}
.login-card button{
  margin-top:14px;background:var(--blue);color:#fff;border:none;border-radius:8px;
  padding:10px;font-size:14px;font-weight:600;cursor:pointer;
}
.login-card button:hover{background:var(--blue-hover);}
.login-error{background:#3a1c1e;color:#ff8a8f;border:1px solid #5c2a2d;border-radius:6px;padding:8px;font-size:13px;}
.login-hint{font-size:11px;color:var(--text-dim);text-align:center;margin-top:8px;}

/* ---------- LAYOUT ---------- */
.app{display:flex;flex-direction:column;height:100vh;}
.topbar{
  height:48px;display:flex;align-items:center;justify-content:space-between;
  background:var(--bg-alt);border-bottom:1px solid var(--border);padding:0 14px;
}
.tab{
  display:flex;align-items:center;gap:8px;background:var(--panel);
  border:1px solid var(--border);border-bottom:none;padding:8px 14px;border-radius:8px 8px 0 0;
  font-size:13px;font-weight:600;
}
.tab-icon{font-size:14px;}
.tab-close{color:var(--text-dim);margin-left:6px;cursor:pointer;}
.topbar-right{display:flex;align-items:center;gap:12px;font-size:13px;}
.connecte{color:var(--text-dim);}
.btn-upgrade{
  background:linear-gradient(90deg,#7b5cff,#3b6df0);color:#fff;border:none;
  padding:7px 14px;border-radius:20px;font-size:12px;font-weight:700;cursor:pointer;
}
.btn-power{
  color:#ff5c5c;text-decoration:none;font-size:16px;padding:4px 6px;border-radius:6px;
}
.btn-power:hover{background:#2a1516;}

.main-layout{flex:1;display:flex;min-height:0;}

.rail{
  width:52px;background:var(--bg-alt);border-right:1px solid var(--border);
  display:flex;flex-direction:column;align-items:center;padding-top:14px;gap:16px;
}
.rail-right{border-right:none;border-left:1px solid var(--border);}
.rail-icon{
  width:36px;height:36px;display:flex;align-items:center;justify-content:center;
  border-radius:8px;font-size:16px;cursor:pointer;color:var(--text-dim);
}
.rail-icon.active,.rail-icon:hover{background:var(--panel-alt);color:var(--text);}

.chat-panel{
  width:380px;border-right:1px solid var(--border);background:var(--bg);
  display:flex;flex-direction:column;min-height:0;
}
.chat-panel-header{
  padding:14px 16px 10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  border-bottom:1px solid var(--border);
}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--green);}
.studio-title{font-weight:700;font-size:14px;}
.studio-sub{font-size:11px;color:var(--text-dim);width:100%;padding-left:17px;margin-top:-2px;}

.mode-switch{display:flex;gap:8px;padding:12px 16px;}
.mode-btn{
  flex:1;background:var(--panel);border:1px solid var(--border);color:var(--text-dim);
  padding:9px 8px;border-radius:8px;font-size:12.5px;font-weight:600;cursor:pointer;
}
.mode-btn.active{background:var(--blue);color:#fff;border-color:var(--blue);}
.mode-btn:not(.active):hover{background:var(--panel-alt);color:var(--text);}

.chat-log{flex:1;overflow-y:auto;padding:0 16px;display:flex;flex-direction:column;gap:12px;}
.user-bubble{
  background:var(--panel-alt);border-radius:10px;padding:14px;font-size:13.5px;line-height:1.5;
}
.assistant-card{
  background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:14px;font-size:13px;line-height:1.6;
}
.assistant-title{font-weight:700;margin-bottom:6px;font-size:13.5px;}
.credits-row{
  margin-top:12px;padding-top:12px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.credits-sub{font-size:11px;color:var(--text-dim);}
.btn-credits{
  background:#fff;color:#111;border:none;border-radius:8px;padding:8px 14px;font-size:12.5px;font-weight:700;cursor:pointer;
}
.mirror-result-card{font-size:12.5px;}
.mirror-result-card a{color:#7fa8ff;}

.input-bar{
  padding:12px 16px 16px;border-top:1px solid var(--border);
}
.input-bar input{
  width:100%;background:var(--panel-alt);border:1px solid var(--border);border-radius:10px;
  padding:12px;color:var(--text);font-size:13.5px;margin-bottom:8px;
}
.input-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{color:var(--text-dim);cursor:pointer;font-size:15px;}
.btn-envoyer{
  margin-left:auto;background:#fff;color:#111;border:none;border-radius:20px;
  padding:8px 16px;font-size:13px;font-weight:700;cursor:pointer;
}
.btn-envoyer:disabled{opacity:.6;cursor:progress;}

.preview-panel{flex:1;display:flex;flex-direction:column;min-width:0;background:#0b0c0f;}
.preview-tabs{display:flex;gap:6px;padding:10px 14px;border-bottom:1px solid var(--border);}
.preview-tab{
  background:var(--panel);border:1px solid var(--border);padding:7px 14px;border-radius:8px;font-size:12.5px;color:var(--text-dim);
}
.preview-tab.active{color:var(--text);border-color:#3a3d45;}
.preview-body{flex:1;overflow:auto;position:relative;}
.preview-empty{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:var(--text-dim);text-align:center;gap:6px;
}
.preview-empty-icon{font-size:34px;opacity:.7;margin-bottom:6px;}
.preview-empty-title{font-size:17px;font-weight:700;color:#c7cad1;}
.preview-empty-sub{font-size:12.5px;max-width:320px;}

/* Grille des 4 images test */
.image-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:24px;}
.image-card{
  border:2px solid var(--border);border-radius:12px;overflow:hidden;cursor:pointer;
  background:var(--panel);transition:border-color .15s;position:relative;
}
.image-card:hover{border-color:#4a5568;}
.image-card.selected{border-color:var(--blue);}
.image-card img{width:100%;height:220px;object-fit:cover;display:block;}
.image-card .image-label{padding:8px 10px;font-size:12px;color:var(--text-dim);display:flex;justify-content:space-between;align-items:center;}
.image-card.selected .image-label{color:#fff;}
.image-check{
  position:absolute;top:8px;right:8px;width:22px;height:22px;border-radius:50%;
  background:var(--blue);color:#fff;display:none;align-items:center;justify-content:center;font-size:13px;
}
.image-card.selected .image-check{display:flex;}
.preview-toolbar{
  padding:12px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px;
}
.btn-primary{
  background:var(--blue);color:#fff;border:none;border-radius:8px;padding:10px 18px;font-weight:700;font-size:13px;cursor:pointer;
}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;}

/* Mirroir URL preview */
.mirror-frame-wrap{position:absolute;inset:0;display:flex;flex-direction:column;}
.mirror-frame-bar{
  padding:8px 14px;border-bottom:1px solid var(--border);font-size:12px;color:var(--text-dim);
  display:flex;justify-content:space-between;align-items:center;background:var(--bg-alt);
}
.mirror-frame-bar a{color:#7fa8ff;text-decoration:none;}
.mirror-frame-wrap iframe{flex:1;border:none;background:#fff;}

.loading-spinner{
  width:34px;height:34px;border:3px solid var(--border);border-top-color:var(--blue);
  border-radius:50%;animation:spin 0.8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

@media (max-width:900px){
  .chat-panel{width:100%;position:absolute;inset:0;z-index:5;}
  .preview-panel{display:none;}
}