.app{display:flex;height:100%;overflow:hidden;position:relative}
/* Sidebar */
.sidebar{width:var(--sidebar-w);background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;height:100%;z-index:60;transition:transform .3s cubic-bezier(.4,0,.2,1)}
@media(max-width:768px){
  .sidebar{position:fixed;top:0;left:0;height:100%;transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:55;backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .3s}
  .sidebar-overlay.show{opacity:1;pointer-events:auto}
  .header .menu-btn{display:flex!important}
}
.sidebar-header{padding:16px;border-bottom:1px solid var(--border)}
.sidebar-title{font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;color:var(--text)}
.sidebar-title .icon{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#7c3aed);display:flex;align-items:center;justify-content:center;font-size:14px}
.new-chat-btn{width:100%;padding:10px;margin-top:12px;background:var(--accent);color:#fff;border-radius:var(--radius-sm);font-weight:500;font-size:13px;display:flex;align-items:center;justify-content:center;gap:6px;transition:.2s}
.new-chat-btn:hover{background:var(--accent-h)}
.sidebar-nav{display:flex;gap:2px;padding:8px}
.nav-tab{flex:1;padding:7px 4px;border-radius:var(--radius-sm);text-align:center;font-size:11px;color:var(--text3);background:transparent;transition:.15s}
.nav-tab.active{background:rgba(255,255,255,.06);color:var(--text)}
.conv-list{flex:1;overflow-y:auto;padding:4px 8px}
.conv-item{padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;gap:8px;color:var(--text2);transition:.15s;margin-bottom:2px}
.conv-item:hover{background:rgba(255,255,255,.04)}
.conv-item.active{background:rgba(255,255,255,.07);color:var(--text)}
.conv-item .pin{font-size:10px;color:var(--yellow);margin-right:2px}
.conv-item .title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}
.conv-item .time{font-size:11px;color:var(--text3);flex-shrink:0}
.conv-item .actions{display:flex;gap:2px;opacity:0;transition:.15s}
.conv-item:hover .actions{opacity:1}
.conv-item .action-btn{width:24px;height:24px;border-radius:4px;background:transparent;color:var(--text3);font-size:12px;display:flex;align-items:center;justify-content:center}
.conv-item .action-btn:hover{background:rgba(255,255,255,.08);color:var(--text)}
.sidebar-search{padding:8px 12px}
.sidebar-search input{font-size:13px;padding:8px 12px}
.sidebar-footer{padding:12px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:4px}
.import-btn{width:100%;padding:8px;background:transparent;color:var(--text3);border-radius:var(--radius-sm);font-size:12px;text-align:left;transition:.15s}
.import-btn:hover{background:rgba(255,255,255,.04);color:var(--text2)}
.char-badge{margin:4px 12px 0;padding:8px 10px;background:rgba(124,58,237,.08);border:1px solid rgba(124,58,237,.15);border-radius:var(--radius-sm);display:flex;align-items:center;gap:8px}
.char-badge .avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#7c3aed,#a855f7);display:flex;align-items:center;justify-content:center;font-size:13px;color:#fff;font-weight:600}
.char-badge .name{font-size:12px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
/* Main */
.main{flex:1;display:flex;flex-direction:column;height:100%;overflow:hidden;min-width:0}
.header{height:var(--header-h);padding:0 16px;background:var(--glass);backdrop-filter:blur(16px);border-bottom:1px solid var(--glass-border);display:flex;align-items:center;gap:12px;flex-shrink:0;z-index:10}
.header .menu-btn{display:none}
.header-title{flex:1;font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
/* Empty state */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;text-align:center;flex:1}
.empty-state .icon{font-size:52px;margin-bottom:16px;opacity:.8}
.empty-state h3{font-size:18px;font-weight:600;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text3);max-width:300px}
.empty-state .features{margin-top:28px;display:flex;flex-direction:column;gap:10px}
.empty-state .feature{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text2)}
.empty-state .feature .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}
/* Settings */
.settings-page{flex:1;overflow-y:auto;padding:24px 16px}
.settings-inner{max-width:560px;margin:0 auto}
.section{margin-bottom:28px}
.section-title{font-size:15px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--text2);margin-bottom:6px}
.field-hint{font-size:11px;color:var(--text3);margin-top:4px}
.range-row{display:flex;align-items:center;gap:12px}
.range-row label{font-size:13px;color:var(--text2);min-width:80px}
.range-row input[type=range]{flex:1;accent-color:var(--accent);background:transparent}
.range-val{min-width:50px;text-align:right;color:var(--accent);font-weight:600;font-size:13px;font-family:var(--font-mono)}
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0}
.test-result{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;margin-top:8px}
.test-ok{background:rgba(16,185,129,.08);color:var(--green);border:1px solid rgba(16,185,129,.15)}
.test-err{background:rgba(239,68,68,.08);color:var(--red);border:1px solid rgba(239,68,68,.15)}
/* World book */
.wb-entry{padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:8px}
.wb-entry .tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:6px}
.wb-entry .content{font-size:13px;color:var(--text2);line-height:1.5}
.wb-entry .actions{display:flex;gap:4px;margin-top:8px}
/* Character */
.cc-panel{padding:24px 16px;overflow-y:auto;flex:1}
.cc-panel .card-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.cc-panel .card-avatar{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#7c3aed,#a855f7);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;font-weight:700}
.cc-panel .card-name{font-size:18px;font-weight:600}
.cc-field{margin-bottom:16px}
.cc-field label{font-size:12px;color:var(--text3);margin-bottom:4px;display:block;text-transform:uppercase;letter-spacing:.5px}
.cc-field .value{font-size:14px;color:var(--text);line-height:1.6}
/* Lock */
.lock-screen{position:fixed;inset:0;background:var(--bg);z-index:200;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}
.lock-icon{font-size:48px;margin-bottom:20px;opacity:.8}
.lock-title{font-size:20px;font-weight:600;margin-bottom:8px}
.lock-sub{font-size:14px;color:var(--text2);margin-bottom:24px;text-align:center}
.pin-input{width:200px;text-align:center;font-size:24px;font-family:var(--font-mono);letter-spacing:8px;padding:14px}
.lock-actions{display:flex;gap:8px;margin-top:16px}