@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --bg:#0f0f13;
  --surface:#17171f;
  --surface2:#1e1e2a;
  --border:#2a2a3a;
  --accent:#c8a96e;
  --accent2:#7eb8c9;
  --accent3:#9b7ec8;
  --text:#e8e4d9;
  --muted:#7a7a8e;
  --ok:#5cb85c;
  --bad:#e05c5c;
  --r:8px;
  --sidebar-w:220px;
}

*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:'Noto Serif SC',serif;min-height:100vh}
body::before{content:'';position:fixed;inset:0;background-image:linear-gradient(rgba(200,169,110,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(200,169,110,.025) 1px,transparent 1px);background-size:40px 40px;pointer-events:none;z-index:0}

/* ===== Layout ===== */
body.layout{display:flex;height:100vh;overflow:hidden}

.sidebar{
  width:var(--sidebar-w);
  flex-shrink:0;
  background:var(--surface);
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  height:100vh;
  position:relative;
  z-index:1;
}

.sidebar-brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:20px 16px 18px;
  border-bottom:1px solid var(--border);
}
.brand-icon{
  width:36px;height:36px;
  background:linear-gradient(135deg,var(--accent3),var(--accent2));
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;color:#fff;
  flex-shrink:0;
}
.brand-name{font-size:14px;font-weight:700;color:var(--accent)}
.brand-sub{font-size:10px;color:var(--muted);font-family:'JetBrains Mono',monospace;margin-top:2px}

.sidebar-nav{
  flex:1;
  padding:12px 8px;
  overflow-y:auto;
}
.nav-section-label{
  font-size:10px;
  color:var(--muted);
  font-family:'JetBrains Mono',monospace;
  letter-spacing:1px;
  text-transform:uppercase;
  padding:4px 8px 8px;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:10px;
  width:100%;
  padding:9px 12px;
  border-radius:var(--r);
  border:none;
  background:transparent;
  color:var(--muted);
  font-family:'Noto Serif SC',serif;
  font-size:13px;
  cursor:pointer;
  text-decoration:none;
  transition:all .18s;
  margin-bottom:2px;
}
.nav-item:hover{background:var(--surface2);color:var(--text)}
.nav-item.active{background:var(--surface2);color:var(--accent);border-left:2px solid var(--accent);padding-left:10px}
.nav-item.is-disabled{opacity:.45;filter:grayscale(.25);cursor:not-allowed;pointer-events:none}
.nav-item i{width:16px;text-align:center;font-size:13px;flex-shrink:0}

.sidebar-status{
  border-top:1px solid var(--border);
  padding:12px 14px;
  display:flex;
  flex-direction:column;
  gap:7px;
}
.status-row{
  display:flex;
  align-items:center;
  gap:7px;
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  color:var(--muted);
}
.api-row{cursor:pointer;transition:color .2s}
.api-row:hover{color:var(--accent2)}

.main-content{
  flex:1;
  overflow-y:auto;
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
}

.page-header{
  padding:24px 32px 0;
  border-bottom:1px solid var(--border);
  background:var(--surface);
  flex-shrink:0;
}
.page-title{
  font-size:20px;
  font-weight:700;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  padding-bottom:16px;
}

.page{display:none;padding:28px 32px;animation:fadeIn .25s ease both;flex:1}
.page.active{display:block}

.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
@media(max-width:900px){.two-col{grid-template-columns:1fr}}

/* ===== Cards ===== */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:24px;
  margin-bottom:20px;
}
.card-title{
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  margin-bottom:18px;
  display:flex;
  align-items:center;
  gap:8px;
}
.card-title::before{content:'';width:3px;height:16px;background:var(--accent);border-radius:2px}

/* ===== Upload ===== */
.upload-zone{border:2px dashed var(--border);border-radius:var(--r);padding:40px 24px;text-align:center;cursor:pointer;transition:all .25s;position:relative}
.upload-zone:hover,.drag-over{border-color:var(--accent)!important;background:rgba(200,169,110,.04)}
.upload-zone input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.upload-icon{font-size:32px;margin-bottom:12px;display:block;color:var(--accent)}
.upload-zone p{color:var(--muted);font-size:13px}
.upload-zone strong{color:var(--accent)}
.progress-bar{height:3px;background:var(--border);border-radius:2px;margin-top:16px;overflow:hidden;display:none}
.progress-bar.visible{display:block}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent3),var(--accent2));width:0%;transition:width .4s ease}

/* ===== File List ===== */
.file-list{list-style:none}
.file-item{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);margin-bottom:8px;transition:border-color .2s}
.file-item:hover{border-color:var(--accent2)}
.file-info{display:flex;align-items:center;gap:10px}
.file-icon{font-size:16px;color:var(--accent2)}
.file-name{font-size:13px;font-weight:600}
.file-chunks{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--muted);background:var(--border);padding:2px 7px;border-radius:10px;margin-top:2px}
.del-btn{background:transparent;border:1px solid var(--border);color:var(--bad);padding:5px 12px;border-radius:var(--r);cursor:pointer;font-size:12px;transition:all .2s}
.del-btn:hover{background:rgba(224,92,92,.1);border-color:var(--bad)}
.mini-btn{background:transparent;border:1px solid var(--border);color:var(--accent2);padding:5px 9px;border-radius:var(--r);cursor:pointer;font-size:11px;transition:all .2s;white-space:nowrap}
.mini-btn:hover{border-color:var(--accent2);background:rgba(126,184,201,.12)}
.mini-btn.danger{color:var(--bad)}
.mini-btn.danger:hover{border-color:var(--bad);background:rgba(224,92,92,.12)}
.empty-state{text-align:center;padding:40px 0;color:var(--muted);font-size:13px}
.empty-icon{font-size:32px;display:block;margin-bottom:12px;color:var(--muted)}

/* ===== Forms ===== */
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;font-family:'JetBrains Mono',monospace;letter-spacing:.5px}
.form-input,.form-textarea{width:100%;background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);color:var(--text);font-family:'JetBrains Mono',monospace;font-size:13px;padding:9px 13px;outline:none;transition:border-color .2s}
.form-textarea{resize:vertical;min-height:90px}
.form-input:focus,.form-textarea:focus{border-color:var(--accent)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);margin-bottom:18px}
.toggle-label{font-size:13px}
.toggle-desc{font-size:11px;color:var(--muted);margin-top:2px}
.toggle{position:relative;display:inline-block;width:44px;height:24px}
.toggle input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;inset:0;background:var(--border);border-radius:24px;cursor:pointer;transition:.3s}
.toggle-slider:before{content:'';position:absolute;height:18px;width:18px;left:3px;bottom:3px;background:var(--muted);border-radius:50%;transition:.3s}
.toggle input:checked+.toggle-slider{background:var(--accent)}
.toggle input:checked+.toggle-slider:before{transform:translateX(20px);background:#0f0f13}
.save-btn{width:100%;padding:11px;background:linear-gradient(135deg,var(--accent3),var(--accent2));color:#fff;font-family:'Noto Serif SC',serif;font-weight:700;font-size:13px;border:none;border-radius:var(--r);cursor:pointer;transition:opacity .2s,transform .15s}
.save-btn:hover{opacity:.9;transform:translateY(-1px)}
.test-btn{padding:9px 24px;background:linear-gradient(135deg,var(--accent),#a8833e);color:#0f0f13;font-family:'Noto Serif SC',serif;font-weight:700;font-size:13px;border:none;border-radius:var(--r);cursor:pointer;transition:opacity .2s}
.test-btn:hover{opacity:.85}
.test-result{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);padding:14px;font-family:'JetBrains Mono',monospace;font-size:12px;white-space:pre-wrap;word-break:break-all;color:var(--accent2);margin-top:14px;display:none}
.test-result.visible{display:block}

/* ===== Dot ===== */
.dot{width:7px;height:7px;border-radius:50%;background:var(--muted);flex-shrink:0}
.dot.green{background:var(--ok)}
.dot.amber{background:var(--accent)}
.dot.blue{background:var(--accent2)}

/* ===== Toast ===== */
.toast-wrap{position:fixed;top:20px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:1000}
.global-loading{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,rgba(15,15,19,.58),rgba(15,15,19,.75));backdrop-filter:blur(2px);z-index:1200;opacity:0;pointer-events:none;transition:opacity .22s ease}
.global-loading.show{opacity:1;pointer-events:auto}
.global-loading-card{display:inline-flex;align-items:center;gap:10px;padding:10px 14px;border-radius:999px;border:1px solid rgba(126,184,201,.35);background:rgba(23,23,31,.92);box-shadow:0 12px 28px rgba(0,0,0,.32)}
.global-loading-spinner{color:var(--accent2);font-size:13px}
.global-loading-text{font-size:12px;letter-spacing:.02em;color:var(--text);font-family:'JetBrains Mono',monospace}
.toast{padding:10px 18px;border-radius:var(--r);font-size:13px;font-family:'JetBrains Mono',monospace;background:var(--surface2);border:1px solid var(--border);box-shadow:0 4px 20px rgba(0,0,0,.4);animation:slideIn .3s ease;max-width:300px}
.toast.success{border-left:3px solid var(--ok)}
.toast.error{border-left:3px solid var(--bad)}
.toast.info{border-left:3px solid var(--accent2)}

/* ===== VC Chunks ===== */
.vc-chunk{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);margin-bottom:10px;overflow:hidden}
.vc-chunk-header{display:flex;align-items:center;justify-content:space-between;padding:7px 12px;background:var(--bg);border-bottom:1px solid var(--border)}
.vc-chunk-idx{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--accent2)}
.vc-chunk-text{width:100%;background:transparent;border:none;color:var(--text);font-family:'JetBrains Mono',monospace;font-size:12px;padding:10px 12px;resize:vertical;outline:none;line-height:1.6}

/* ===== Persona Page ===== */
.persona-active-bar{
  display:flex;align-items:center;gap:12px;
  background:linear-gradient(90deg,rgba(200,169,110,.08),rgba(126,184,201,.04));
  border:1px solid rgba(200,169,110,.2);
  border-radius:var(--r);padding:12px 18px;margin-bottom:24px;
}
.pab-label{font-size:11px;color:var(--muted);font-family:'JetBrains Mono',monospace;letter-spacing:1px;text-transform:uppercase;flex-shrink:0}
.pab-name{font-size:14px;font-weight:700;color:var(--accent);flex:1}
.pab-off-btn{background:transparent;border:1px solid var(--bad);color:var(--bad);padding:5px 12px;border-radius:var(--r);cursor:pointer;font-size:12px;transition:all .2s;display:flex;align-items:center;gap:6px}
.pab-off-btn:hover{background:rgba(224,92,92,.12)}
.persona-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:16px;
  margin-bottom:20px;
}
.persona-card{
  background:var(--surface);
  border:1.5px solid var(--border);
  border-radius:12px;
  padding:20px;
  position:relative;
  cursor:pointer;
  transition:all .2s;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.persona-card:hover{border-color:var(--accent2);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.3)}
.persona-card.pc-active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 8px 24px rgba(200,169,110,.15)}
.pc-glow{position:absolute;top:0;left:0;right:0;height:2px;border-radius:12px 12px 0 0;background:linear-gradient(90deg,var(--accent3),var(--accent));opacity:0;transition:opacity .2s}
.persona-card.pc-active .pc-glow{opacity:1}
.pc-head{display:flex;align-items:center;gap:12px}
.pc-avatar{font-size:32px;line-height:1;flex-shrink:0}
.pc-meta{flex:1;min-width:0}
.pc-name{font-size:14px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:6px}
.pc-tag{font-size:9px;padding:2px 7px;border-radius:8px;font-family:'JetBrains Mono',monospace;font-weight:700;flex-shrink:0}
.pc-tag-builtin{background:var(--border);color:var(--muted)}
.pc-tag-active{background:var(--accent);color:#0f0f13}
.pc-tag-custom{background:rgba(155,126,200,.2);color:var(--accent3);border:1px solid rgba(155,126,200,.3)}
.pc-prompt{font-size:12px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-actions{display:flex;gap:8px;margin-top:2px}
.pc-btn{padding:5px 12px;border-radius:6px;border:1px solid var(--border);background:transparent;color:var(--muted);font-size:11px;cursor:pointer;transition:all .18s;font-family:'JetBrains Mono',monospace}
.pc-btn:hover{border-color:var(--accent2);color:var(--accent2)}
.pc-btn-primary{background:linear-gradient(135deg,var(--accent3),var(--accent2));border:none;color:#fff}
.pc-btn-primary:hover{opacity:.85}
.pc-btn-danger:hover{border-color:var(--bad);color:var(--bad)}
.persona-add-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;
  border:1.5px dashed var(--border);
  color:var(--muted);
  padding:10px 20px;
  border-radius:var(--r);
  cursor:pointer;
  font-size:13px;
  font-family:'Noto Serif SC',serif;
  transition:all .2s;
}
.persona-add-btn:hover{border-color:var(--accent3);color:var(--accent3)}
.persona-tab-btn{padding:7px 18px;border-radius:var(--r);border:1px solid var(--border);background:transparent;color:var(--muted);font-size:13px;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:6px}
.persona-tab-btn:hover{border-color:var(--accent2);color:var(--accent2)}
.persona-tab-btn.active{background:linear-gradient(135deg,var(--accent3),var(--accent2));border-color:transparent;color:#fff;font-weight:600}
/* ===== Modal ===== */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:500;align-items:center;justify-content:center}
.modal-overlay.open{display:flex}
.modal-box{background:var(--surface);border:1px solid var(--border);border-radius:12px;width:100%;max-width:520px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;border-bottom:1px solid var(--border);font-size:15px;font-weight:700;color:var(--accent)}
.modal-header button{background:transparent;border:none;color:var(--muted);font-size:18px;cursor:pointer;transition:color .2s}
.modal-header button:hover{color:var(--text)}
.modal-body{padding:20px 24px}
.modal-footer{display:flex;gap:10px;justify-content:flex-end;padding:16px 24px;border-top:1px solid var(--border)}
.modal-cancel{background:transparent;border:1px solid var(--border);color:var(--muted);padding:8px 18px;border-radius:var(--r);cursor:pointer;font-size:13px;transition:all .2s}
.modal-cancel:hover{border-color:var(--text);color:var(--text)}
.modal-save{background:linear-gradient(135deg,var(--accent3),var(--accent2));border:none;color:#fff;padding:8px 20px;border-radius:var(--r);cursor:pointer;font-size:13px;font-family:'Noto Serif SC',serif;font-weight:700;display:flex;align-items:center;gap:6px;transition:opacity .2s}
.modal-save:hover{opacity:.85}
.p-emoji-row{display:flex;align-items:center;gap:10px}
.p-emoji-input{width:56px;height:44px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);color:var(--text);font-size:24px;text-align:center;outline:none;transition:border-color .2s;flex-shrink:0}
.p-emoji-input:focus{border-color:var(--accent)}
.p-avatar-upload-row{display:flex;align-items:flex-start;gap:16px;margin-bottom:4px}
.p-avatar-zone{width:80px;height:80px;border:2px dashed var(--border);border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;flex-shrink:0;overflow:hidden;background:var(--surface2)}
.p-avatar-zone:hover{border-color:var(--accent3);background:rgba(155,126,200,.08)}
.pc-avatar-img{width:56px;height:56px;border-radius:10px;object-fit:cover;flex-shrink:0}
.page-header{display:flex;align-items:center;justify-content:space-between;padding:20px 32px 0;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0}

/* ===== Animations ===== */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
@keyframes listSkeletonShimmer{0%{background-position:220% 0}100%{background-position:-220% 0}}

.list-skeleton-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:12px;
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.list-skeleton-line{
  height:10px;
  border-radius:999px;
  background:linear-gradient(90deg,rgba(122,122,142,.18) 25%,rgba(200,169,110,.26) 50%,rgba(122,122,142,.18) 75%);
  background-size:220% 100%;
  animation:listSkeletonShimmer 1.2s linear infinite;
}
.list-skeleton-line.w-35{width:35%}
.list-skeleton-line.w-38{width:38%}
.list-skeleton-line.w-40{width:40%}
.list-skeleton-line.w-42{width:42%}
.list-skeleton-line.w-44{width:44%}
.list-skeleton-line.w-45{width:45%}
.list-skeleton-line.w-48{width:48%}
.list-skeleton-line.w-60{width:60%}
.list-skeleton-line.w-62{width:62%}
.list-skeleton-line.w-65{width:65%}
.list-skeleton-line.w-66{width:66%}
.list-skeleton-line.w-68{width:68%}
.list-skeleton-line.w-70{width:70%}
.list-skeleton-line.w-72{width:72%}
.list-skeleton-line.w-78{width:78%}
.list-skeleton-line.w-80{width:80%}
.list-skeleton-line.w-82{width:82%}
.list-skeleton-line.w-84{width:84%}
.list-skeleton-line.w-85{width:85%}
.list-skeleton-line.w-86{width:86%}

/* ===== Mobile Hamburger ===== */
.sidebar-toggle{
  display:none;
  position:fixed;
  top:14px;left:14px;
  z-index:300;
  width:38px;height:38px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  color:var(--text);
  font-size:15px;
  cursor:pointer;
  align-items:center;justify-content:center;
  transition:all .2s;
}
.sidebar-toggle:hover{border-color:var(--accent);color:var(--accent);}
.sidebar-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.55);
  z-index:199;
}
.sidebar-overlay.open{display:block;}
.sidebar-bottom-info{
  padding:12px 14px;
  border-top:1px solid var(--border);
}
.sbi-row{
  display:flex;align-items:center;gap:7px;
  font-family:'JetBrains Mono',monospace;
  font-size:11px;color:var(--muted);
}

/* ===== Dashboard ===== */
.db-status-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:24px;
}
.db-status-chip{
  display:flex;align-items:center;gap:7px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:20px;
  padding:5px 14px;
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  color:var(--muted);
  transition:border-color .2s;
}
.db-chip-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--muted);flex-shrink:0;
}
.db-chip-dot.green{background:var(--ok);box-shadow:0 0 6px rgba(92,184,92,.5);}
.db-chip-dot.amber{background:var(--accent);}
.db-chip-dot.blue{background:var(--accent2);}
.api-chip{cursor:pointer;}
.api-chip:hover{border-color:var(--accent2);color:var(--accent2);}

.db-stats-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:12px;
  margin-bottom:20px;
}
@media(max-width:1100px){.db-stats-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:640px){.db-stats-grid{grid-template-columns:repeat(2,1fr);}}

.db-stat-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:16px 14px;
  display:flex;
  align-items:center;
  gap:12px;
  transition:border-color .2s,transform .2s;
}
.db-stat-card:hover{border-color:var(--accent2);transform:translateY(-2px);}
.db-stat-icon{
  width:40px;height:40px;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;color:#fff;
  flex-shrink:0;
}
.db-stat-body{min-width:0;}
.db-stat-val{
  font-size:22px;
  font-weight:700;
  color:var(--text);
  font-family:'JetBrains Mono',monospace;
  line-height:1;
}
.db-stat-label{
  font-size:11px;
  color:var(--muted);
  margin-top:4px;
  white-space:nowrap;
  font-family:'JetBrains Mono',monospace;
}

.db-charts-row{
  display:flex;
  gap:16px;
  margin-bottom:16px;
}
@media(max-width:900px){.db-charts-row{flex-direction:column;}}

.db-bottom-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-bottom:16px;
}
@media(max-width:760px){.db-bottom-row{grid-template-columns:1fr;}}

.db-chart-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:20px;
}
.db-chart-title{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:8px;
  font-family:'JetBrains Mono',monospace;
}

/* Heatmap */
.db-heatmap{
  display:grid;
  grid-template-columns:repeat(30,1fr);
  gap:3px;
  margin-bottom:10px;
}
.db-hm-cell{
  aspect-ratio:1;
  border-radius:3px;
  background:var(--border);
  transition:transform .15s;
  cursor:default;
  position:relative;
}
.db-hm-cell:hover{transform:scale(1.3);z-index:2;}
.db-heatmap-legend{
  display:flex;align-items:center;gap:6px;
  font-family:'JetBrains Mono',monospace;
  font-size:10px;
  color:var(--muted);
}
.db-hml-cells{display:flex;gap:3px;}
.db-hml-cells div{width:12px;height:12px;border-radius:2px;}

/* Recent sessions */
.db-recent-list{display:flex;flex-direction:column;gap:6px;max-height:220px;overflow-y:auto;}
.db-recent-item{
  display:flex;align-items:center;gap:10px;
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:9px 12px;
  cursor:pointer;
  transition:border-color .2s;
  text-decoration:none;
}
.db-recent-item:hover{border-color:var(--accent2);}
.db-recent-icon{color:var(--muted);font-size:12px;flex-shrink:0;}
.db-recent-body{flex:1;min-width:0;}
.db-recent-title{font-size:12px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.db-recent-meta{font-size:10px;color:var(--muted);font-family:'JetBrains Mono',monospace;margin-top:2px;}
.db-recent-badge{
  font-family:'JetBrains Mono',monospace;
  font-size:10px;
  color:var(--muted);
  background:var(--border);
  padding:2px 7px;
  border-radius:10px;
  flex-shrink:0;
}

/* Quick buttons */
.db-quick-row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.db-quick-btn{
  display:flex;align-items:center;gap:8px;
  background:var(--surface);
  border:1px solid var(--border);
  color:var(--text);
  padding:10px 18px;
  border-radius:var(--r);
  cursor:pointer;
  font-size:13px;
  font-family:'Noto Serif SC',serif;
  text-decoration:none;
  transition:all .2s;
}
.db-quick-btn:hover{border-color:var(--accent);color:var(--accent);background:rgba(200,169,110,.06);transform:translateY(-1px);}
.db-quick-btn i{color:var(--accent2);}

/* ===== Mobile Responsive ===== */
@media(max-width:768px){
  .sidebar-toggle{display:flex;}
  .sidebar{
    position:fixed;
    left:-260px;
    top:0;
    height:100vh;
    z-index:200;
    width:240px;
    transition:left .28s cubic-bezier(.4,0,.2,1);
    box-shadow:4px 0 24px rgba(0,0,0,.4);
  }
  .sidebar.open{left:0;}
  .main-content{width:100%;}
  .page{padding:16px 14px;}
  .page-header{padding:14px 14px 0;padding-left:58px;}
  .two-col{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .db-quick-btn{flex:1;justify-content:center;min-width:calc(50% - 5px);}
  .db-chart-title{font-size:12px;}
  .db-stat-val{font-size:18px;}
}

/* ===== Preset Module Editor ===== */
.pset-modules-list{display:flex;flex-direction:column;gap:6px;}
.pset-mod-row{
  display:flex;align-items:center;gap:8px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:8px 10px;
  transition:border-color .2s,box-shadow .2s;
  cursor:default;
}
.pset-mod-row.pset-mod-disabled{opacity:.5;}
.pset-mod-row.pset-mod-over{border-color:var(--accent3);box-shadow:0 0 0 2px rgba(155,126,200,.25);}
.pset-mod-row.pset-mod-dragging{opacity:.4;}
.pset-mod-drag{
  color:var(--muted);font-size:13px;cursor:grab;flex-shrink:0;
  padding:2px 4px;
  transition:color .15s;
}
.pset-mod-drag:hover{color:var(--accent3);}
.pset-mod-num{
  font-family:'JetBrains Mono',monospace;
  font-size:11px;color:var(--accent3);
  width:18px;text-align:center;flex-shrink:0;
}
.pset-mod-fields{
  display:flex;gap:6px;flex:1;min-width:0;
}
.pset-mod-enf-select{
  width:100px;
  flex-shrink:0;
  font-size:11px;
  padding:5px 6px;
  cursor:pointer;
}
.pset-mod-name-input{width:110px;flex-shrink:0;font-size:12px;padding:5px 8px;}
.mp-section-title{font-size:12px;font-weight:600;color:var(--accent);margin:18px 0 8px;letter-spacing:.5px;}
.mp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:4px;}
.mp-item{display:flex;flex-direction:column;gap:4px;}
.mp-label{font-size:12px;font-weight:600;color:var(--text);display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;}
.mp-range{font-size:10px;font-weight:400;color:var(--muted);background:var(--bg2);padding:1px 5px;border-radius:4px;}
.mp-desc{font-size:11px;color:var(--muted);line-height:1.5;min-height:30px;}
.pc-btn{padding:7px 14px;border-radius:var(--r);border:none;cursor:pointer;font-size:12px;font-weight:600;transition:all .2s;}
.pc-btn-primary{background:var(--accent);color:#fff;}
.pc-btn-primary:hover{opacity:.85;}
.pset-mod-binding-wrap{display:flex;align-items:center;gap:0;flex:1;min-width:0;}
.pset-mod-binding-input{flex:1;min-width:0;font-size:11px;padding:5px 8px;font-family:'JetBrains Mono',monospace;border-radius:var(--r) 0 0 var(--r);}
.pset-expand-btn{
  flex-shrink:0;
  height:32px;width:28px;
  background:var(--surface2);
  border:1px solid var(--border);
  border-left:none;
  border-radius:0 var(--r) var(--r) 0;
  color:var(--muted);
  cursor:pointer;
  font-size:10px;
  display:flex;align-items:center;justify-content:center;
  transition:all .15s;
}
.pset-expand-btn:hover{background:rgba(155,126,200,.15);color:var(--accent3);border-color:var(--accent3);}
/* Toggle switch */
.pset-mod-toggle{
  position:relative;display:inline-flex;align-items:center;
  flex-shrink:0;cursor:pointer;
}
.pset-mod-toggle input{opacity:0;width:0;height:0;position:absolute;}
.pset-mod-toggle-slider{
  width:32px;height:18px;
  background:var(--border);
  border-radius:9px;
  transition:background .2s;
  position:relative;
  display:block;
}
.pset-mod-toggle-slider::after{
  content:'';
  position:absolute;
  left:3px;top:3px;
  width:12px;height:12px;
  background:#fff;
  border-radius:50%;
  transition:transform .2s;
}
.pset-mod-toggle input:checked+.pset-mod-toggle-slider{background:var(--accent3);}
.pset-mod-toggle input:checked+.pset-mod-toggle-slider::after{transform:translateX(14px);}
/* Module chips on card */
.preset-mod-chips{
  display:flex;flex-wrap:wrap;gap:5px;
  margin:8px 0 4px;
}
.preset-mod-chip{
  display:flex;align-items:center;gap:4px;
  font-family:'JetBrains Mono',monospace;
  font-size:10px;
  color:var(--text);
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:4px;
  padding:2px 8px;
  transition:border-color .15s;
}
.preset-mod-chip:hover{border-color:var(--accent3);}
.pmc-num{
  font-size:9px;
  color:var(--accent3);
  font-weight:700;
  background:rgba(155,126,200,.15);
  border-radius:3px;
  padding:1px 4px;
}
.pab-label{font-size:11px;color:var(--muted);font-family:'JetBrains Mono',monospace;}
.pab-name{font-size:13px;font-weight:600;color:var(--accent);}
.preset-active-bar{
  display:flex;align-items:center;gap:12px;
  background:linear-gradient(90deg,rgba(155,126,200,.08),rgba(126,184,201,.04));
  border:1px solid rgba(155,126,200,.2);
  border-radius:var(--r);padding:12px 18px;margin-bottom:24px;
}
.preset-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:16px;
  margin-bottom:20px;
}
.preset-card{cursor:pointer;}
.preset-var-chips{
  display:flex;flex-wrap:wrap;gap:5px;
  margin-top:4px;
}
.preset-var-chip{
  font-family:'JetBrains Mono',monospace;
  font-size:10px;
  color:var(--accent3);
  background:rgba(155,126,200,.12);
  border:1px solid rgba(155,126,200,.25);
  border-radius:4px;
  padding:2px 7px;
}

/* Preset Modal Editor */
.preset-editor-layout{
  display:flex;
  gap:16px;
  margin-top:4px;
}
@media(max-width:600px){.preset-editor-layout{flex-direction:column;}}
.pset-tpl-input{
  font-family:'JetBrains Mono',monospace;
  font-size:12px;
  line-height:1.7;
  resize:vertical;
  min-height:200px;
}
.preset-vars-panel{
  width:280px;
  flex-shrink:0;
  display:flex;
  flex-direction:column;
  gap:8px;
}
@media(max-width:600px){.preset-vars-panel{width:100%;}}
.pset-vars-list{display:flex;flex-direction:column;gap:6px;}
.pset-var-row{
  display:flex;align-items:center;gap:6px;
}
.pset-var-name{width:90px;flex-shrink:0;font-size:12px;padding:6px 8px;}
.pset-var-binding{flex:1;min-width:0;font-size:11px;padding:6px 8px;}
.pset-var-del{
  background:transparent;border:none;
  color:var(--muted);cursor:pointer;font-size:13px;
  padding:4px;flex-shrink:0;
  transition:color .18s;
}
.pset-var-del:hover{color:var(--bad);}
.pset-add-var-btn{
  background:transparent;
  border:1px dashed var(--border);
  color:var(--muted);
  padding:6px 12px;
  border-radius:var(--r);
  cursor:pointer;
  font-size:12px;
  font-family:'JetBrains Mono',monospace;
  display:flex;align-items:center;gap:6px;
  transition:all .2s;
  margin-top:2px;
}
.pset-add-var-btn:hover{border-color:var(--accent3);color:var(--accent3);}
.pset-builtin-hint{
  margin-top:10px;
  padding:10px 12px;
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r);
}
.pset-hint-item{
  font-size:11px;
  color:var(--muted);
  font-family:'JetBrains Mono',monospace;
  margin-bottom:4px;
  line-height:1.6;
}
.pset-hint-item code{
  color:var(--accent2);
  background:rgba(126,184,201,.1);
  padding:1px 5px;
  border-radius:3px;
  font-size:10px;
}

/* ---- Drop Import Zone ---- */
.drop-import-zone{
  border:2px dashed var(--border);
  border-radius:var(--r);
  padding:20px;
  text-align:center;
  color:var(--muted);
  font-size:13px;
  font-family:'JetBrains Mono',monospace;
  cursor:pointer;
  transition:all .2s;
  margin:12px 0 8px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
}
.drop-import-zone:hover{
  border-color:var(--accent3);
  color:var(--accent3);
  background:rgba(155,126,200,.06);
}
.drop-import-zone.drop-active{
  border-color:var(--accent3);
  color:var(--accent3);
  background:rgba(155,126,200,.12);
  transform:scale(1.01);
}