:root {
  --bg: #ffffff; --bg2: #f7f8fa; --bg3: #eef0f4; --bg4: #e0e3ea;
  --fg: #0d1117; --fg2: #4b5563; --fg3: #9aa3b2;
  --primary: #6366f1; --primary-light: rgba(99,102,241,0.09); --primary-dark: #4f46e5; --primary-fg: #ffffff;
  --accent: #8b5cf6; --accent-light: rgba(139,92,246,0.09);
  --brand-grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
  --bubble-user: linear-gradient(135deg, #6366f1, #4f46e5); --bubble-user-fg: #ffffff;
  --bubble-ai: transparent; --bubble-ai-fg: #0d1117;
  --success: #059669; --warning: #d97706; --error: #dc2626;
  --border: #e8eaef; --border-light: #f1f3f6;
  --shadow-sm: 0 1px 2px rgba(16,24,40,0.04);
  --shadow-md: 0 4px 16px rgba(16,24,40,0.06);
  --shadow-lg: 0 12px 32px rgba(16,24,40,0.10);
  --glow: 0 4px 20px rgba(99,102,241,0.28);
  --radius: 28px; --radius-sm: 16px; --radius-xs: 12px;
  --sidebar-w: 280px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
  --font-mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, monospace;
  --transition: 0.18s ease;
  --spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  --glass: rgba(255,255,255,0.72);
  --glass-border: rgba(16,24,40,0.06);
}
[data-theme="dark"] {
  --bg: #0c0d12; --bg2: #15171f; --bg3: #1f222c; --bg4: #2d313e;
  --fg: #f3f4f8; --fg2: #a8b0c0; --fg3: #6b7280;
  --primary: #818cf8; --primary-light: rgba(129,140,248,0.12); --primary-dark: #6366f1; --primary-fg: #0c0d12;
  --accent: #a78bfa; --accent-light: rgba(167,139,250,0.12);
  --brand-grad: linear-gradient(135deg, #818cf8 0%, #a78bfa 50%, #e879f9 100%);
  --bubble-user: linear-gradient(135deg, #6366f1, #4f46e5); --bubble-user-fg: #ffffff;
  --bubble-ai: transparent; --bubble-ai-fg: #f3f4f8;
  --border: #262a36; --border-light: #1b1e27;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4); --shadow-lg: 0 12px 32px rgba(0,0,0,0.55);
  --glow: 0 4px 20px rgba(129,140,248,0.35);
  --glass: rgba(18,19,26,0.72);
  --glass-border: rgba(255,255,255,0.07);
}
* { margin:0; padding:0; box-sizing:border-box; }
[hidden] { display:none !important; }
html { font-size:16px; -webkit-tap-highlight-color:transparent; -webkit-text-size-adjust:100%; }
body { font-family:var(--font); background:var(--bg); color:var(--fg); height:100dvh; height:100vh; overflow:hidden; transition:background 0.3s ease, color 0.3s ease; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; overscroll-behavior:none; }
#app { display:flex; height:100dvh; height:100vh; position:relative; overflow:hidden; }
::selection { background:rgba(99,102,241,0.18); color:var(--primary-dark); }
::-webkit-scrollbar { width:4px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--bg4); border-radius:10px; }
::-webkit-scrollbar-thumb:hover { background:var(--fg3); }

@supports (-webkit-touch-callout: none) {
  body { height:-webkit-fill-available; }
  #app { height:100dvh; height:-webkit-fill-available; }
  .messages { -webkit-overflow-scrolling:touch; }
}

/* ===== Sidebar ===== */
.sidebar-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.3); z-index:40; transition:opacity 0.3s; }
.sidebar { width:var(--sidebar-w); background:var(--bg); display:flex; flex-direction:column; flex-shrink:0; z-index:50; transition:transform 0.3s cubic-bezier(0.4,0,0.2,1); border-right:1px solid var(--border); }
.sidebar-header { padding:20px 16px 14px; display:flex; align-items:center; justify-content:space-between; padding-top:calc(20px + var(--safe-top)); }
.logo { display:flex; align-items:center; gap:9px; }
.logo-icon { display:inline-flex; color:var(--primary); filter:drop-shadow(0 2px 5px rgba(99,102,241,0.4)); }
.logo-text { font-size:18px; font-weight:800; letter-spacing:-0.6px; background:var(--brand-grad); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.header-actions { display:flex; align-items:center; gap:4px; }
.btn-icon-sm { width:34px; height:34px; border-radius:50%; border:none; background:transparent; color:var(--fg2); cursor:pointer; display:flex; align-items:center; justify-content:center; transition:all var(--transition); }
.btn-icon-sm:hover { background:var(--bg3); color:var(--fg); }
.btn-icon-sm.btn-new { background:var(--brand-grad); color:white; border-radius:50%; box-shadow:var(--glow); }
.btn-icon-sm.btn-new:hover { filter:brightness(1.08); transform:scale(1.08) rotate(90deg); }
.btn-pill { display:flex; align-items:center; gap:6px; padding:10px 14px; border-radius:var(--radius-xs); border:1px solid var(--border); background:transparent; color:var(--fg2); font-size:14px; cursor:pointer; transition:all var(--transition); width:100%; justify-content:center; }
.btn-pill:hover { background:var(--bg3); color:var(--fg); }
.sidebar-search { padding:0 12px 8px; }
.search-input { width:100%; padding:8px 12px; border-radius:var(--radius-xs); border:1px solid var(--border); background:var(--bg); color:var(--fg); font-size:13px; }
.search-input:focus { outline:none; border-color:var(--primary); }

/* ===== Sidebar Tabs (Vertical) ===== */
.sidebar-tabs { display:flex; flex-direction:column; padding:8px 10px; gap:2px; border-bottom:1px solid var(--border); flex-shrink:0; }
.sidebar-tab { display:flex; align-items:center; gap:8px; padding:9px 14px; border:none; background:none; color:var(--fg3); font-size:13px; font-weight:500; cursor:pointer; border-radius:8px; transition:all var(--transition); white-space:nowrap; text-align:left; border-left:none; }
.sidebar-tab svg { flex-shrink:0; }
.sidebar-tab:hover { color:var(--fg2); background:var(--bg2); }
.sidebar-tab.active { color:var(--primary); background:var(--primary-light); font-weight:600; }
.sidebar-panel { flex:1; display:flex; flex-direction:column; overflow:hidden; min-height:0; }
.sidebar-panel-body { flex:1; overflow-y:auto; padding:12px; display:flex; flex-direction:column; gap:10px; }

/* Interpreter sessions list (sidebar tab placeholder) */
.interp-sessions-list { padding:12px; }

/* Agent sidebar panel */
.agent-sidebar-card { padding:12px; border-radius:var(--radius-xs); border:1px solid var(--border); background:var(--bg); cursor:pointer; transition:all var(--transition); display:flex; align-items:center; gap:10px; }
.agent-sidebar-card:hover { border-color:var(--primary); background:var(--primary-light); }
.agent-sidebar-card.active { border-color:var(--primary); background:var(--primary-light); }
.agent-sidebar-card .agent-icon { flex-shrink:0; width:34px; height:34px; display:inline-flex; align-items:center; justify-content:center; border-radius:10px; background:var(--primary-light); color:var(--primary); font-size:18px; }
.agent-sidebar-card .agent-icon svg { width:18px; height:18px; }
.agent-sidebar-card .agent-info { flex:1; min-width:0; }
.agent-sidebar-card .agent-name { font-size:13px; font-weight:600; color:var(--fg); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.agent-sidebar-card .agent-desc { font-size:11px; color:var(--fg3); margin-top:2px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }

/* Agent / Skill card icons (modal lists) */
.agent-card-icon, .skill-card-icon { flex-shrink:0; width:40px; height:40px; display:inline-flex; align-items:center; justify-content:center; border-radius:12px; background:var(--primary-light); color:var(--primary); font-size:22px; }
.agent-card-icon svg { width:22px; height:22px; }
.skill-card-icon svg { width:20px; height:20px; }
.agent-card-check { color:var(--primary); display:inline-flex; align-items:center; }
.agent-card-check svg { width:18px; height:18px; }

/* Linear icon picker (agent/skill create form) */
.icon-picker { display:grid; grid-template-columns:repeat(auto-fill, minmax(40px, 1fr)); gap:8px; }
.icon-pick-btn { aspect-ratio:1; display:inline-flex; align-items:center; justify-content:center; border:1px solid var(--border); border-radius:10px; background:var(--bg2); color:var(--fg2); cursor:pointer; transition:all var(--transition); padding:0; }
.icon-pick-btn svg { width:20px; height:20px; }
.icon-pick-btn:hover { border-color:var(--primary); color:var(--primary); }
.icon-pick-btn.active { border-color:var(--primary); background:var(--primary-light); color:var(--primary); }

/* Chat List */
.chat-list { flex:1; overflow-y:auto; padding:6px 8px; }
.chat-item { padding:10px 12px; border-radius:8px; cursor:pointer; margin-bottom:2px; display:flex; align-items:center; gap:10px; transition:all 0.15s ease; position:relative; border-left:none; }
.chat-item:hover { background:var(--bg3); }
.chat-item.active { background:var(--primary-light); }
.chat-item .chat-icon { width:28px; height:28px; border-radius:8px; background:var(--bg3); display:flex; align-items:center; justify-content:center; font-size:12px; flex-shrink:0; transition:all var(--transition); }
.chat-item.active .chat-icon { background:var(--primary); color:white; }
.chat-item .chat-info { flex:1; min-width:0; }
.chat-item .chat-title { font-size:13.5px; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.chat-item .chat-time { font-size:11px; color:var(--fg3); margin-top:2px; }
.chat-item .chat-more { position:absolute; right:8px; top:50%; transform:translateY(-50%); opacity:0; width:26px; height:26px; border-radius:6px; border:none; background:var(--bg4); color:var(--fg2); font-size:14px; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:opacity var(--transition); }
.chat-item:hover .chat-more { opacity:1; }
.chat-item.active .chat-more { opacity:0.7; }

/* Chat Context Menu */
.chat-ctx-menu { }
.ctx-item { display:flex; align-items:center; gap:8px; width:100%; padding:8px 12px; border:none; background:none; color:var(--fg); font-size:13px; cursor:pointer; border-radius:6px; text-align:left; transition:background var(--transition); }
.ctx-item:hover { background:var(--bg3); }
.ctx-item.ctx-danger { color:var(--error); }
.ctx-item.ctx-danger:hover { background:rgba(239,68,68,0.1); }

/* Sidebar Footer */
.sidebar-footer { padding:12px; border-top:1px solid var(--border); display:flex; align-items:center; gap:10px; }
.btn-avatar-left { flex-shrink:0; width:34px; height:34px; border-radius:50%; border:1px solid var(--border); background:var(--bg2); cursor:pointer; display:flex; align-items:center; justify-content:center; overflow:hidden; transition:border-color 0.15s ease; }
.btn-avatar-left:hover { border-color:var(--fg3); }
.btn-avatar-left .avatar-default-icon { color:var(--fg3); }
.btn-avatar-left .avatar-img { width:100%; height:100%; object-fit:cover; border-radius:50%; }
.footer-info { font-size:11px; color:var(--fg3); flex:1; min-width:0; display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.version-tag { font-size:10px; color:var(--fg3); opacity:0.8; font-family:var(--font-mono); background:var(--bg2); padding:2px 6px; border-radius:4px; }
.footer-actions { display:flex; gap:0; flex-wrap:wrap; }

/* ===== Main ===== */
.main { flex:1; display:flex; flex-direction:column; min-width:0; background:var(--bg); overflow:hidden; }
.topbar { display:flex; align-items:center; gap:10px; padding:12px 24px; padding-top:calc(12px + var(--safe-top)); background:var(--glass); -webkit-backdrop-filter:saturate(1.8) blur(20px); backdrop-filter:saturate(1.8) blur(20px); position:sticky; top:0; z-index:10; min-height:calc(48px + var(--safe-top)); border-bottom:1px solid transparent; }
.model-select { padding:8px 30px 8px 12px; border-radius:100px; border:1px solid var(--border); background:var(--bg2); color:var(--fg); font-size:13px; font-weight:500; appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239a9a9a' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 10px center; transition:border-color var(--transition); }
.model-select:focus { outline:none; border-color:var(--primary); }
.topbar-actions { display:flex; gap:2px; margin-left:auto; }

/* ===== Welcome ===== */
.welcome { flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:48px 24px; text-align:center; animation:fadeIn 0.5s ease; }
.welcome-icon { color:var(--primary); margin-bottom:24px; animation:floatBounce 3s ease-in-out infinite; position:relative; display:inline-flex; align-items:center; justify-content:center; filter:drop-shadow(0 4px 12px rgba(99,102,241,0.4)); }
.welcome-icon::after { content:''; position:absolute; inset:-28px; background:radial-gradient(circle, rgba(99,102,241,0.22), transparent 68%); z-index:-1; animation:pulseGlow 3s ease-in-out infinite; }
.welcome h2 { font-size:30px; font-weight:800; margin-bottom:12px; letter-spacing:-0.8px; background:var(--brand-grad); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.welcome p { color:var(--fg3); font-size:15px; margin-bottom:40px; }
.welcome-features { display:flex; flex-wrap:wrap; gap:8px; justify-content:center; margin-bottom:32px; max-width:380px; }
.feature-item { display:flex; align-items:center; gap:6px; padding:6px 14px; border-radius:100px; background:var(--bg2); font-size:12px; color:var(--fg2); border:1px solid var(--border); }
.feature-icon { font-size:14px; }
.quick-actions { display:grid; grid-template-columns:1fr 1fr; gap:12px; max-width:380px; width:100%; }
.quick-btn { display:flex; align-items:center; gap:9px; padding:15px 16px; border-radius:var(--radius-sm); border:1px solid var(--border); background:var(--bg2); color:var(--fg2); font-size:14px; cursor:pointer; transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition); text-align:left; font-weight:600; box-shadow:var(--shadow-sm); }
.quick-btn svg { flex-shrink:0; color:var(--primary); }
.quick-btn:hover { background:var(--bg); color:var(--fg); border-color:var(--primary); transform:translateY(-3px); box-shadow:var(--shadow-md); }
.quick-btn:active { transform:translateY(-1px) scale(0.98); }

/* ===== Messages - Grok Style ===== */
.messages { flex:1; overflow-y:auto; padding:24px 20px; display:flex; flex-direction:column; gap:24px; scroll-behavior:smooth; }
.msg-group { display:flex; gap:12px; padding:0; animation:msgSlideIn 0.3s ease; max-width:800px; width:100%; margin:0 auto; align-items:flex-start; }
.msg-group.user { flex-direction:row-reverse; animation:msgSlideInRight 0.3s ease; }
.msg-group.ai { flex-direction:row; }
.msg-avatar { width:32px; height:32px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:14px; flex-shrink:0; background:var(--bg3); }
.msg-avatar-ai { background:var(--brand-grad); color:#fff; }
.msg-avatar-user { background:var(--bg3); color:var(--fg2); }
.msg-group.ai .msg-avatar { background:linear-gradient(135deg, var(--primary), #60a5fa); color:white; }
.msg-group.user .msg-avatar { background:var(--bg3); }
.msg-body { max-width:calc(100% - 48px); display:flex; flex-direction:column; gap:4px; min-width:0; }
.msg { padding:12px 0; border-radius:0; font-size:var(--msg-font-size, 15px); line-height:1.75; word-break:break-word; position:relative; overflow-wrap:break-word; min-height:1em; }
.msg-user { background:var(--bubble-user); color:var(--bubble-user-fg); border-radius:20px; padding:10px 16px; }
.msg-ai { background:transparent; color:var(--fg); border:none; padding:0 4px; }
.msg pre { background:var(--bg2); border:1px solid var(--border); padding:16px 18px; border-radius:var(--radius-xs); overflow-x:auto; margin:12px 0; font-size:13px; line-height:1.65; position:relative; }
.msg-user pre { background:rgba(255,255,255,0.1); border-color:rgba(255,255,255,0.15); color:rgba(255,255,255,0.95); }
.msg pre .copy-code { position:absolute; top:8px; right:8px; padding:4px 10px; border-radius:6px; border:none; background:var(--bg3); color:var(--fg2); font-size:11px; cursor:pointer; opacity:0; transition:opacity var(--transition); font-family:var(--font); }
.msg pre:hover .copy-code { opacity:1; }
.msg pre .code-lang { position:absolute; top:8px; left:12px; font-size:10px; color:var(--fg3); text-transform:uppercase; font-family:var(--font); letter-spacing:0.5px; }
.msg code { font-family:var(--font-mono); font-size:13px; background:var(--bg3); padding:2px 5px; border-radius:3px; }
.msg-user code { background:rgba(255,255,255,0.2); color:rgba(255,255,255,0.95); }
.msg pre code { background:none; padding:0; }
.msg img { max-width:100%; border-radius:var(--radius-xs); margin:8px 0; cursor:pointer; }
.msg .msg-img { max-width:min(100%, 400px); border-radius:var(--radius-sm); box-shadow:var(--shadow-sm); transition:transform 0.2s ease; }
.msg .msg-img:hover { transform:scale(1.02); }
.msg-meta { font-size:11px; color:var(--fg3); display:flex; align-items:center; gap:8px; margin-top:4px; padding:0 4px; }
.msg-group.user .msg-meta { justify-content:flex-end; }
.msg-info { display:flex; align-items:center; gap:6px; padding:0 4px 4px; }
.msg-actions { display:flex; gap:4px; opacity:0; transition:opacity var(--transition); }
.msg-group:hover .msg-actions { opacity:1; }
.msg-actions button { padding:6px; border:none; background:transparent; color:var(--fg3); border-radius:6px; cursor:pointer; display:flex; align-items:center; justify-content:center; min-width:32px; min-height:32px; transition:all 0.15s ease; }
.msg-actions button:hover { background:var(--bg3); color:var(--fg); }
.msg-actions button:active { transform:scale(0.9); }
.msg-actions button svg { display:block; }

/* ===== Input - Grok Pill Style ===== */
.input-wrapper { background:var(--glass); -webkit-backdrop-filter:saturate(1.8) blur(20px); backdrop-filter:saturate(1.8) blur(20px); padding:0 20px; padding-bottom:calc(16px + env(safe-area-inset-bottom, 0px)); border-top:1px solid transparent; }
.attach-preview { display:flex; gap:8px; padding:8px 12px 0; flex-wrap:wrap; max-width:800px; margin:0 auto; }
.attach-preview .attach-item { position:relative; border-radius:var(--radius-xs); overflow:hidden; border:1px solid var(--border); }
.attach-preview img { height:56px; display:block; }
.attach-preview .file-tag { background:var(--bg2); padding:6px 10px; font-size:12px; display:flex; align-items:center; gap:6px; }
.attach-preview .attach-del { position:absolute; top:2px; right:2px; width:18px; height:18px; border-radius:50%; background:rgba(0,0,0,0.6); color:white; border:none; font-size:10px; cursor:pointer; display:flex; align-items:center; justify-content:center; }
.input-toolbar { display:flex; gap:6px; max-width:800px; margin:0 auto; padding:6px 0; flex-wrap:wrap; align-items:center; }
.toolbar-chip { display:flex; align-items:center; gap:5px; padding:7px 14px; border-radius:100px; border:1px solid var(--border); background:transparent; color:var(--fg2); font-size:13px; cursor:pointer; transition:all 0.15s ease; white-space:nowrap; font-weight:500; }
.toolbar-chip:hover { background:var(--bg2); color:var(--fg); }
.toolbar-chip.active { background:var(--primary); border-color:var(--primary); color:white; }
.toolbar-chip svg { flex-shrink:0; }
.input-area { display:flex; align-items:flex-end; gap:0; padding:0; max-width:800px; margin:0 auto; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); position:relative; transition:border-color 0.18s ease, box-shadow 0.18s ease; box-shadow:var(--shadow-sm); }
.input-area:focus-within { border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-light), var(--shadow-md); transform:none; }
.input-btn { color:var(--fg3); padding:12px; transition:color var(--transition); }
.input-btn:hover { color:var(--fg); }
.msg-input { flex:1; resize:none; border:none; border-radius:0; padding:14px 4px; font-size:16px; background:transparent; color:var(--fg); max-height:150px; line-height:1.5; font-family:var(--font); }
.msg-input:focus { outline:none; box-shadow:none; }
.btn-send { width:36px; height:36px; border-radius:50%; border:none; background:var(--bg4); color:var(--fg3); cursor:pointer; flex-shrink:0; display:flex; align-items:center; justify-content:center; margin:4px 8px 4px 0; transition:all 0.18s ease; }
.btn-send:not(:disabled) { background:var(--brand-grad); color:white; box-shadow:var(--glow); }
.btn-send:not(:disabled):hover { filter:brightness(1.08); transform:scale(1.08); }
.btn-send:not(:disabled):active { transform:scale(0.9); }

/* ===== Modal ===== */
.modal { position:fixed; inset:0; display:flex; align-items:center; justify-content:center; z-index:100; animation:fadeIn 0.2s ease; }
.modal-backdrop { position:absolute; inset:0; background:rgba(0,0,0,0.4); }
.modal-content { position:relative; background:var(--bg); border-radius:var(--radius-sm); width:90%; max-width:540px; max-height:85vh; overflow:hidden; display:flex; flex-direction:column; box-shadow:var(--shadow-lg); border:1px solid var(--border); animation:scaleIn 0.2s ease; }
.modal-header { display:flex; justify-content:space-between; align-items:center; padding:18px 20px; border-bottom:1px solid var(--border); flex-shrink:0; }
.modal-header h3 { font-size:17px; font-weight:600; }
.settings-tabs { display:flex; padding:0 16px; border-bottom:1px solid var(--border); gap:0; flex-shrink:0; overflow-x:auto; -webkit-overflow-scrolling:touch; }
.settings-tabs .tab { padding:12px 16px; border:none; background:none; color:var(--fg3); font-size:13px; font-weight:500; cursor:pointer; border-bottom:2px solid transparent; transition:all var(--transition); white-space:nowrap; flex-shrink:0; }
.settings-tabs .tab.active { color:var(--primary); border-bottom-color:var(--primary); }
.settings-tabs .tab:hover { color:var(--fg2); }
.modal-body { padding:20px; overflow-y:auto; flex:1; min-height:0; }
.modal-body .form-group { margin-bottom:16px; }
.modal-body label { display:block; font-size:13px; font-weight:500; color:var(--fg2); margin-bottom:6px; }
.modal-body input,.modal-body select,.modal-body textarea { width:100%; padding:10px 14px; border:1px solid var(--border); border-radius:8px; background:var(--bg2); color:var(--fg); font-size:14px; font-family:var(--font); transition:border-color var(--transition); }
.modal-body input:focus,.modal-body select:focus,.modal-body textarea:focus { outline:none; border-color:var(--primary); }
.modal-body .hint { font-size:11px; color:var(--fg3); margin-top:5px; }
.modal-body .color-row { display:flex; gap:8px; margin-top:8px; flex-wrap:wrap; }
.modal-body .color-swatch { width:32px; height:32px; border-radius:50%; border:3px solid transparent; cursor:pointer; transition:all var(--transition); }
.modal-body .color-swatch:hover { transform:scale(1.1); }
.modal-body .color-swatch.active { border-color:var(--fg); }
.modal-body .range-row { display:flex; align-items:center; gap:12px; }
.modal-body input[type="range"] { flex:1; padding:0; height:4px; -webkit-appearance:none; background:var(--bg4); border-radius:2px; border:none; }
.modal-body input[type="range"]::-webkit-slider-thumb { -webkit-appearance:none; width:16px; height:16px; border-radius:50%; background:var(--primary); cursor:pointer; }

/* ===== Toast ===== */
.toast { position:fixed; bottom:calc(100px + var(--safe-bottom)); left:50%; transform:translateX(-50%); padding:10px 20px; border-radius:100px; background:var(--fg); color:var(--bg); font-size:13px; font-weight:500; z-index:200; animation:slideUp 0.3s var(--spring); white-space:nowrap; box-shadow:none; }

/* ===== Btn Icon ===== */
.btn-icon { background:none; border:none; cursor:pointer; color:var(--fg3); padding:8px; border-radius:50%; transition:all 0.15s ease; display:flex; align-items:center; justify-content:center; min-width:36px; min-height:36px; }
.btn-icon:hover { background:var(--bg3); color:var(--fg); }
.btn-icon svg { display:block; }
.btn-icon-lg { background:none; border:none; cursor:pointer; color:var(--fg3); padding:8px; border-radius:50%; transition:all 0.15s ease; display:flex; align-items:center; justify-content:center; min-width:40px; min-height:40px; }
.btn-icon-lg:hover { background:var(--bg3); color:var(--fg); }
.btn-icon-lg:active { transform:scale(0.9); }
.btn-icon-lg svg { display:block; }

/* ===== Mobile ===== */
.mobile-only { display:none; }
.desktop-only { display:flex; }
.btn-menu-lg { min-width:48px; min-height:48px; padding:11px; border-radius:12px; }
.btn-menu-lg:active { background:var(--primary-light); color:var(--primary); }
@media(max-width:768px) {
  .sidebar { position:fixed; left:0; top:0; bottom:0; transform:translateX(-100%); box-shadow:var(--shadow-lg); will-change:transform; }
  .sidebar.open { transform:translateX(0); }
  .sidebar.open ~ .sidebar-overlay { display:block; }
  .mobile-only { display:flex; }
  .desktop-only { display:none !important; }
  .topbar { padding:10px 14px; padding-top:max(10px, calc(10px + var(--safe-top))); gap:8px; }
  .topbar-actions .btn-icon-lg { padding:8px; min-width:36px; min-height:36px; }
  .model-select { font-size:12px; padding:7px 26px 7px 10px; min-width:0; }
  .messages { padding:16px 12px; gap:20px; }
  .msg-group { padding:0; }
  .msg-body { max-width:88%; }
  .msg-user { padding:10px 14px; }
  .msg-ai { padding:0 2px; }
  .input-wrapper { padding:0 10px; padding-bottom:calc(10px + env(safe-area-inset-bottom, 0px)); }
  .input-area { border-radius:24px; }
  .input-toolbar { padding:4px 4px; gap:4px; }
  .toolbar-chip { padding:6px 12px; font-size:12px; }
  .msg-input { font-size:16px; padding:12px 4px; }
  .msg pre { font-size:12px; padding:12px 14px; }
  .welcome { padding:28px 16px; }
  .welcome-icon { font-size:40px; }
  .welcome h2 { font-size:22px; }
  .welcome p { font-size:14px; margin-bottom:24px; }
  .quick-actions { gap:8px; max-width:100%; }
  .quick-btn { padding:12px; font-size:13px; }
  .welcome-features { gap:6px; margin-bottom:16px; }
  .feature-item { padding:5px 10px; font-size:11px; }
  .modal-content { width:100%; max-width:100%; max-height:100vh; max-height:100dvh; border-radius:var(--radius-sm) var(--radius-sm) 0 0; height:95vh; height:95dvh; margin-top:auto; }
  .modal { align-items:flex-end; }
  .modal-header { padding:16px 18px; padding-top:calc(16px + var(--safe-top)); }
  .modal-header h3 { font-size:16px; }
  .modal-body { padding:16px 18px; }
  .modal-body input,.modal-body select,.modal-body textarea { font-size:16px; padding:10px 14px; }
  .settings-tabs .tab { padding:12px 14px; font-size:13px; }
  .provider-card-body { padding:12px 14px; gap:10px; }
  .provider-card-header { padding:12px 14px; gap:6px; flex-wrap:nowrap; }
  .provider-card-header .switch { margin-left:auto; }
  .provider-drag-handle, .provider-order-num { display:none; }
  .provider-name-input { font-size:13px; max-width:none; flex:1; overflow:hidden; white-space:nowrap; }
  .key-row { flex-wrap:wrap; gap:6px; }
  .key-row input { min-width:0; flex:1 1 100%; }
  .key-row .btn-eye, .key-row .btn-check-key, .key-row .btn-fetch-models { flex-shrink:0; }
  .provider-grid { grid-template-columns:1fr 1fr; gap:8px; }
  .provider-grid-item { padding:12px; font-size:13px; }
  .provider-name-input { font-size:13px; max-width:none; }
  .sidebar-header { padding-top:calc(20px + var(--safe-top)); }
  .sidebar { width:82vw; max-width:300px; }
  .chat-item .chat-more { opacity:0.5; }
  .chat-item.active .chat-more { opacity:0.7; }
}

/* PWA standalone mode */
@media(display-mode:standalone) {
  .input-wrapper { padding-bottom:calc(8px + env(safe-area-inset-bottom, 0px)); }
  .lock-screen { padding-top:env(safe-area-inset-top, 0px); }
}

/* Haptic-like active states for iOS */
@media(hover:none) and (pointer:coarse) {
  .msg-actions { opacity:1; }
  .btn-icon:active { transform:scale(0.88); opacity:0.7; }
  .btn-send:not(:disabled):active { transform:scale(0.82); }
  .btn-pill:active { transform:scale(0.96); }
  .chat-item:active { background:var(--bg3); transform:scale(0.98); }
  .quick-btn:active { transform:scale(0.95); background:var(--bg2); }
  .toolbar-chip:active { transform:scale(0.93); }
}

/* ===== Animations ===== */
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes slideUp { from{opacity:0;transform:translateY(8px) translateX(-50%)} to{opacity:1;transform:translateY(0) translateX(-50%)} }
@keyframes scaleIn { from{opacity:0;transform:scale(0.92)} to{opacity:1;transform:scale(1)} }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
@keyframes spin { to{transform:rotate(360deg)} }
@keyframes msgSlideIn { from{opacity:0;transform:translateX(-12px)} to{opacity:1;transform:translateX(0)} }
@keyframes msgSlideInRight { from{opacity:0;transform:translateX(12px)} to{opacity:1;transform:translateX(0)} }
@keyframes floatBounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }
@keyframes pulseGlow { 0%,100%{opacity:0.55;transform:scale(0.92)} 50%{opacity:1;transform:scale(1.08)} }

/* Typing indicator */
.typing-indicator { display:flex; gap:4px; padding:6px 2px; align-items:center; }
.typing-indicator span { width:6px; height:6px; border-radius:50%; background:var(--primary); opacity:0.5; animation:typingBounce 1.4s ease-in-out infinite; }
.typing-indicator span:nth-child(2) { animation-delay:0.15s; }
.typing-indicator span:nth-child(3) { animation-delay:0.3s; }
@keyframes typingBounce { 0%,60%,100%{transform:translateY(0);opacity:0.4} 30%{transform:translateY(-4px);opacity:1} }

/* Voice recording */
.recording { color:var(--error) !important; animation:pulse 1s infinite; }
.btn-icon-lg.recording { background:rgba(239,68,68,0.1); }

/* Reduce motion */
@media(prefers-reduced-motion:reduce) {
  *,*::before,*::after { animation-duration:0.01ms !important; transition-duration:0.01ms !important; }
}

/* ===== Image Preview ===== */
.img-preview { position:fixed; inset:0; z-index:300; display:flex; align-items:center; justify-content:center; animation:fadeIn 0.2s ease; }
.img-preview-backdrop { position:absolute; inset:0; background:rgba(0,0,0,0.9); }
.img-preview img { position:relative; max-width:92vw; max-height:85vh; border-radius:var(--radius-xs); object-fit:contain; }
.img-preview-close { position:absolute; top:calc(16px + var(--safe-top)); right:16px; width:36px; height:36px; border-radius:50%; border:none; background:rgba(255,255,255,0.15); color:white; font-size:18px; cursor:pointer; }
.img-preview-download { position:absolute; bottom:calc(24px + var(--safe-bottom)); left:50%; transform:translateX(-50%); padding:10px 24px; border-radius:100px; border:none; background:white; color:#111; font-size:14px; font-weight:500; cursor:pointer; }

/* ===== Scroll to Bottom ===== */
.scroll-bottom { position:fixed; bottom:calc(90px + var(--safe-bottom)); right:20px; width:38px; height:38px; border-radius:50%; border:1px solid var(--border); background:var(--glass); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); color:var(--fg2); box-shadow:var(--shadow-md); cursor:pointer; display:flex; align-items:center; justify-content:center; z-index:20; transition:all 0.2s ease; }
.scroll-bottom:hover { background:var(--bg2); transform:translateY(-2px); box-shadow:var(--shadow-lg); }

/* Streaming cursor */
.streaming-cursor::after { content:''; display:inline-block; width:2px; height:1em; background:var(--primary); animation:blink 1s step-end infinite; margin-left:3px; vertical-align:text-bottom; border-radius:1px; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* Thinking mode block */
.msg details.thinking-block { margin:12px 0; padding:0; border-radius:8px; background:var(--bg2); border:1px solid var(--border); border-left:none; font-size:13px; overflow:hidden; }
.msg details.thinking-block summary { cursor:pointer; font-weight:500; color:var(--fg2); padding:10px 14px; user-select:none; background:var(--bg2); display:flex; align-items:center; gap:6px; transition:color var(--transition); }
.msg details.thinking-block summary:hover { color:var(--fg); }
.msg details.thinking-block[open] summary { margin-bottom:0; border-bottom:1px solid var(--border); padding:10px 14px; }
.msg details.thinking-block .thinking-content { padding:12px 14px; color:var(--fg2); line-height:1.6; font-size:13px; max-height:300px; overflow-y:auto; }

/* Theme option buttons */
.theme-opt { padding:8px 14px; border-radius:6px; border:1px solid var(--border); background:var(--bg2); color:var(--fg2); font-size:13px; cursor:pointer; transition:all var(--transition); }
.theme-opt.active { border-color:var(--primary); color:var(--primary); background:var(--primary-light); font-weight:500; }
.theme-opt:active { transform:scale(0.96); }

/* Interpreter swap button */
.interp-swap { width:36px; height:36px; border-radius:50%; border:1px solid var(--border); background:var(--bg2); color:var(--fg); font-size:18px; cursor:pointer; display:flex; align-items:center; justify-content:center; flex-shrink:0; transition:all var(--transition); }
.interp-swap:active { transform:scale(0.9); background:var(--primary); color:white; border-color:var(--primary); }

/* Memory panel */
.memory-add { display:flex; gap:8px; margin-bottom:16px; }
.memory-list { display:flex; flex-direction:column; gap:8px; }
.memory-item { display:flex; align-items:center; gap:8px; padding:10px 12px; border-radius:var(--radius-xs); background:var(--bg2); border:1px solid var(--border); }
.memory-text { flex:1; font-size:13px; color:var(--fg); word-break:break-word; }
.memory-del { width:24px; height:24px; border-radius:50%; border:none; background:var(--bg3); color:var(--fg3); font-size:12px; cursor:pointer; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.memory-del:hover { background:var(--error); color:white; }
.memory-archive-btn { width:24px; height:24px; border-radius:50%; border:none; background:var(--bg3); color:var(--fg3); font-size:12px; cursor:pointer; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.memory-archive-btn:hover { background:var(--primary); color:white; }

/* Blockquote */
.msg blockquote { border-left:3px solid var(--primary); padding:4px 12px; margin:6px 0; background:var(--bg2); border-radius:0 8px 8px 0; font-style:italic; }
.msg li { margin-left:16px; margin-bottom:2px; }
.msg ul,.msg ol { margin:4px 0; }
.msg a { color:var(--primary); text-decoration:underline; text-underline-offset:2px; }
.msg a:hover { opacity:0.7; }

/* Stop Button */
.btn-stop { color:var(--error) !important; animation:pulse 1.5s infinite; }

/* Rename */
.rename-input { width:100%; padding:12px 16px; border:1px solid var(--border); border-radius:var(--radius-xs); background:var(--bg2); color:var(--fg); font-size:15px; margin-bottom:12px; }
.rename-input:focus { outline:none; border-color:var(--primary); }
.btn-confirm { width:100%; padding:12px; border-radius:var(--radius-xs); border:none; background:var(--primary); color:white; font-size:15px; font-weight:500; cursor:pointer; }
.btn-confirm:active { transform:scale(0.98); opacity:0.9; }

/* ===== Chat Groups ===== */
.chat-group-header { display:flex; align-items:center; justify-content:space-between; padding:8px 16px 4px; font-size:11px; font-weight:600; color:var(--fg3); text-transform:uppercase; letter-spacing:0.5px; }
.chat-group-count { font-size:10px; background:var(--bg3); padding:1px 6px; border-radius:8px; }
.chat-item.archived { opacity:0.6; }
.chat-unarchive { background:none; border:none; cursor:pointer; font-size:14px; color:var(--primary); padding:4px 8px; }
.archived-header { margin-top:12px; padding-top:12px; border-top:1px solid var(--border); }

/* ===== Provider Management ===== */
.provider-list { display:flex; flex-direction:column; gap:10px; }
.provider-card { border:1px solid var(--border); border-radius:var(--radius-xs); overflow:hidden; opacity:0.6; transition:all var(--transition); cursor:grab; user-select:none; -webkit-user-select:none; }
.provider-card.enabled { opacity:1; border-color:var(--primary); }
.provider-card.drag-over { border-color:var(--primary); box-shadow:0 0 0 2px var(--primary-light); }
.provider-card[draggable="true"]:active { cursor:grabbing; }
.provider-card-header { display:flex; align-items:center; gap:10px; padding:10px 12px; background:var(--bg2); cursor:pointer; flex-wrap:nowrap; }
.provider-drag-handle { cursor:grab; font-size:16px; color:var(--fg3); user-select:none; flex-shrink:0; }
.provider-drag-handle:active { cursor:grabbing; color:var(--primary); }
.provider-order-num { font-size:11px; color:var(--fg3); background:var(--bg3); width:20px; height:20px; border-radius:50%; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.provider-icon { width:26px; height:26px; border-radius:6px; display:flex; align-items:center; justify-content:center; font-size:13px; color:white; flex-shrink:0; }
.provider-toggle { transition:transform 0.2s ease; flex-shrink:0; }
.provider-toggle.expanded { transform:rotate(180deg); }
.provider-del { font-size:13px; opacity:0.5; flex-shrink:0; }
.provider-del:hover { opacity:1; }
.provider-card-body { padding:10px 12px; display:flex; flex-direction:column; gap:8px; border-top:1px solid var(--border); }
.form-group.compact { margin:0; }
.form-group.compact label { font-size:12px; color:var(--fg2); margin-bottom:3px; display:block; }
.form-group.compact input { width:100%; padding:7px 10px; border-radius:6px; border:1px solid var(--border); background:var(--bg); color:var(--fg); font-size:13px; box-sizing:border-box; }
.key-row { display:flex; gap:6px; align-items:center; flex-wrap:wrap; }
.key-row input { flex:1; min-width:0; }
.btn-eye { background:none; border:none; cursor:pointer; font-size:16px; padding:8px 10px; flex-shrink:0; min-height:38px; display:flex; align-items:center; }
.btn-fetch-models { background:var(--primary); color:white; border:none; border-radius:8px; padding:10px 14px; font-size:13px; cursor:pointer; white-space:nowrap; flex-shrink:0; min-height:38px; }
.btn-fetch-models:active { transform:scale(0.95); opacity:0.8; }
.btn-fetch-models:disabled { opacity:0.5; cursor:not-allowed; }
.btn-check-key { background:var(--success); color:white; border:none; border-radius:8px; padding:10px 14px; font-size:13px; cursor:pointer; white-space:nowrap; flex-shrink:0; min-height:38px; }
.btn-check-key:active { transform:scale(0.95); opacity:0.8; }
.btn-check-key:disabled { opacity:0.5; cursor:not-allowed; }
.key-status { margin-top:4px; font-size:12px; min-height:16px; }
.provider-name-input { background:none; border:none; font-size:13px; font-weight:500; color:var(--fg); padding:0; width:auto; flex:1; min-width:0; outline:none; border-bottom:1px dashed transparent; text-overflow:ellipsis; }
.provider-name-input:focus { border-bottom-color:var(--primary); }
.switch { position:relative; width:44px; height:24px; flex-shrink:0; }
.switch input { opacity:0; width:0; height:0; }
.switch .slider { position:absolute; inset:0; background:var(--bg4); border-radius:24px; cursor:pointer; transition:0.3s; }
.switch .slider::before { content:''; position:absolute; width:20px; height:20px; left:2px; bottom:2px; background:white; border-radius:50%; transition:0.3s; box-shadow:0 1px 3px rgba(0,0,0,0.15); }
.switch input:checked + .slider { background:var(--primary); }
.switch input:checked + .slider::before { transform:translateX(20px); }
.btn-add-provider { width:100%; padding:14px; border-radius:var(--radius-xs); border:2px dashed var(--border); background:transparent; color:var(--fg2); font-size:14px; cursor:pointer; margin-top:10px; }
.btn-add-provider:active { background:var(--bg3); }
.add-provider-panel { margin-top:10px; }
.provider-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:6px; }
.provider-grid-item { display:flex; align-items:center; gap:6px; padding:10px; border-radius:var(--radius-xs); border:1px solid var(--border); background:var(--bg2); cursor:pointer; font-size:12px; }
.provider-grid-item:active { background:var(--bg3); transform:scale(0.97); }
.relay-rank-section { margin-top:12px; padding-top:12px; border-top:1px solid var(--border); }
.relay-rank-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:8px; }
.relay-rank-list { display:flex; flex-direction:column; gap:3px; }
.relay-rank-item { display:flex; align-items:center; gap:8px; padding:6px 8px; border-radius:6px; background:var(--bg2); font-size:12px; }
.relay-rank-num { font-weight:600; color:var(--primary); min-width:24px; }
.relay-rank-name { font-weight:500; min-width:80px; color:var(--primary); text-decoration:none; }
.relay-rank-name:hover { text-decoration:underline; }
.relay-rank-score { background:var(--primary-light); color:var(--primary); padding:1px 6px; border-radius:4px; font-size:11px; font-weight:600; }
.relay-rank-meta { color:var(--fg3); font-size:11px; margin-left:auto; }

/* ===== Remote Desktop ===== */
.remote-view { position:fixed; inset:0; background:#000; z-index:80; display:flex; flex-direction:column; }
.remote-toolbar { display:flex; align-items:center; gap:8px; padding:8px 12px; padding-top:calc(8px + var(--safe-top)); background:#1a1a1a; border-bottom:1px solid #333; flex-shrink:0; }
.remote-status { display:flex; align-items:center; gap:6px; flex:1; }
.remote-dot { width:8px; height:8px; border-radius:50%; background:#ef4444; }
.remote-dot.on { background:#10b981; }
#remote-info { font-size:12px; color:#999; }
.remote-fps { font-family:var(--font-mono); font-size:11px; color:#666; }
.remote-canvas-wrap { flex:1; position:relative; overflow:hidden; display:flex; align-items:center; justify-content:center; touch-action:none; }
#remote-screen { max-width:100%; max-height:100%; object-fit:contain; }
.remote-connect { position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; background:#000; padding:20px; }
.remote-connect-icon { color:var(--primary); margin-bottom:8px; display:inline-flex; }
.remote-connect h3 { color:#fff; font-size:20px; }
.remote-connect p { color:#999; font-size:14px; }
.remote-connect-form { display:flex; gap:8px; margin-top:12px; width:100%; max-width:300px; }
.remote-connect-form input { flex:1; padding:12px 16px; border-radius:var(--radius-xs); border:1px solid #444; background:#222; color:#fff; font-size:15px; text-align:center; }
.remote-connect-form input:focus { outline:none; border-color:var(--primary); }
.remote-connect-form button { padding:12px 20px; border-radius:var(--radius-xs); border:none; background:var(--primary); color:#fff; font-size:14px; font-weight:500; cursor:pointer; }
.remote-connect-form button:active { transform:scale(0.95); }
.remote-hint { font-size:12px; color:#666; margin-top:8px; }
.remote-kb { padding:8px; padding-bottom:calc(8px + var(--safe-bottom)); background:#1a1a1a; border-top:1px solid #333; display:flex; flex-direction:column; gap:8px; }
.remote-kb input { width:100%; padding:10px 14px; border-radius:var(--radius-xs); border:1px solid #444; background:#222; color:#fff; font-size:14px; }
.remote-keys { display:flex; flex-wrap:wrap; gap:6px; justify-content:center; }
.remote-keys button { padding:8px 12px; border-radius:6px; border:none; background:#333; color:#fff; font-size:13px; min-width:36px; cursor:pointer; }
.remote-keys button:active { background:var(--primary); transform:scale(0.92); }

/* Model badge */
.model-badge { display:inline-flex; align-items:center; gap:4px; padding:2px 8px; border-radius:100px; background:var(--bg3); font-size:11px; color:var(--fg3); font-weight:500; }
.msg-duration { display:inline-flex; align-items:center; gap:3px; padding:2px 8px; border-radius:100px; background:var(--bg3); font-size:11px; color:var(--fg3); font-family:var(--font-mono); }
.stream-timer { font-size:11px; color:var(--fg3); font-family:var(--font-mono); padding:2px 8px; border-radius:100px; background:var(--bg3); }

/* Prompt Templates */
.prompt-category { margin-bottom:16px; }
.prompt-cat-title { font-size:13px; font-weight:600; color:var(--fg2); margin-bottom:8px; text-transform:uppercase; letter-spacing:0.5px; }
.prompt-grid { display:grid; grid-template-columns:1fr 1fr; gap:6px; }
.prompt-item { display:flex; align-items:center; gap:8px; padding:10px 12px; border-radius:var(--radius-xs); border:1px solid var(--border); background:var(--bg2); cursor:pointer; text-align:left; }
.prompt-item:hover { border-color:var(--primary); }
.prompt-item:active { transform:scale(0.97); }
.prompt-icon { font-size:16px; }
.prompt-name { font-size:13px; font-weight:500; color:var(--fg); }

/* Code language label */
.code-lang { position:absolute; top:8px; left:12px; font-size:10px; color:var(--fg3); text-transform:uppercase; font-family:var(--font); letter-spacing:0.5px; }

/* Empty state */
.empty-state { display:flex; flex-direction:column; align-items:center; justify-content:center; padding:40px; color:var(--fg3); font-size:14px; gap:8px; }

/* ===== Chat Item Swipe Actions ===== */
.chat-item { overflow:visible; position:relative; transition:transform 0.2s ease; }
.chat-item-wrapper { position:relative; overflow:hidden; border-radius:var(--radius-xs); margin-bottom:2px; }
.chat-item-actions { position:absolute; top:0; bottom:0; display:flex; align-items:stretch; }
.chat-item-actions.left { left:0; transform:translateX(-100%); }
.chat-item-actions.right { right:0; transform:translateX(100%); }
.chat-item-action { display:flex; align-items:center; justify-content:center; padding:0 16px; font-size:12px; font-weight:500; color:white; white-space:nowrap; min-width:60px; }
.chat-item-action.group { background:var(--primary); }
.chat-item-action.archive { background:var(--warning); }
.chat-item-action.delete { background:var(--error); }
.chat-item-inner { position:relative; z-index:1; background:var(--bg2); transition:transform 0.25s ease; }
.chat-item-inner.swiping { transition:none; }

/* ===== Lock Screen ===== */
.lock-screen { position:fixed; inset:0; z-index:500; background:var(--bg); display:flex; align-items:center; justify-content:center; }
.lock-content { text-align:center; padding:40px 30px; max-width:320px; width:100%; }
.lock-icon { color:var(--primary); margin-bottom:16px; display:inline-flex; filter:drop-shadow(0 4px 12px rgba(99,102,241,0.35)); }
.lock-content h3 { font-size:20px; font-weight:600; margin-bottom:8px; color:var(--fg); }
.lock-content p { font-size:14px; color:var(--fg2); margin-bottom:24px; }
.lock-input { width:100%; padding:14px 16px; border:1px solid var(--border); border-radius:var(--radius-xs); background:var(--bg2); color:var(--fg); font-size:20px; text-align:center; letter-spacing:8px; margin-bottom:16px; }
.lock-input:focus { outline:none; border-color:var(--primary); }
.lock-btn { width:100%; padding:14px; border-radius:var(--radius-xs); border:none; background:var(--primary); color:white; font-size:16px; font-weight:500; cursor:pointer; }
.lock-btn:active { transform:scale(0.98); opacity:0.9; }

/* ===== Interpreter (同声传译) — 整页对话式 ===== */
.interpreter-view { position:fixed; inset:0; background:var(--bg); z-index:80; display:flex; flex-direction:column; }
.interp-topbar { display:flex; align-items:center; gap:8px; padding:10px 14px; padding-top:calc(10px + var(--safe-top)); background:var(--bg2); border-bottom:1px solid var(--border); flex-shrink:0; }
.interp-lang-pills { flex:1; display:flex; align-items:center; gap:8px; min-width:0; }
.interp-lang-pill { flex:1; min-width:0; padding:8px 10px; border-radius:100px; border:1px solid var(--border); background:var(--bg); color:var(--fg); font-size:13px; text-align:center; cursor:pointer; }
.interp-swap { width:34px; height:34px; border-radius:50%; border:1px solid var(--border); background:var(--bg); color:var(--fg2); cursor:pointer; display:flex; align-items:center; justify-content:center; flex-shrink:0; transition:all var(--transition); }
.interp-swap:active { transform:scale(0.9) rotate(180deg); background:var(--primary); color:white; border-color:var(--primary); }
#interp-notify.active { color:var(--primary); background:var(--primary-light); }

.interp-history { flex:1; overflow-y:auto; padding:16px; display:flex; flex-direction:column; gap:14px; -webkit-overflow-scrolling:touch; }
.interp-empty { margin:auto; text-align:center; color:var(--fg3); font-size:14px; line-height:1.9; }
.interp-item { display:flex; flex-direction:column; gap:6px; padding:14px 16px; border-radius:18px; background:var(--bg2); border:1px solid var(--border); animation:interpIn .25s ease; }
@keyframes interpIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }
.interp-original { font-size:15px; color:var(--fg2); line-height:1.5; }
.interp-translated { font-size:16px; color:var(--fg); font-weight:600; line-height:1.5; }
.interp-pending { color:var(--fg3) !important; font-weight:400 !important; font-style:italic; animation:pulse 1.2s ease-in-out infinite; }
.interp-time { font-size:11px; color:var(--fg3); align-self:flex-end; }

.interp-footer { flex-shrink:0; padding:14px 16px calc(16px + var(--safe-bottom)); border-top:1px solid var(--border); background:var(--bg2); display:flex; flex-direction:column; align-items:center; gap:10px; }
.interp-footer .interp-live { width:100%; min-height:22px; font-size:15px; color:var(--primary); font-weight:500; text-align:center; line-height:1.4; }
.interp-status-line { font-size:12px; color:var(--fg3); min-height:16px; }
.interp-mic-btn { width:64px; height:64px; border-radius:50%; border:none; background:var(--brand-grad); color:white; cursor:pointer; display:flex; align-items:center; justify-content:center; box-shadow:var(--glow); transition:transform var(--transition); }
.interp-mic-btn:active { transform:scale(0.92); }
.interp-mic-btn .ic-stop { display:none; }
.interp-mic-btn.recording { background:var(--error, #ef4444); animation:micPulse 1.5s ease-in-out infinite; }
.interp-mic-btn.recording .ic-mic { display:none; }
.interp-mic-btn.recording .ic-stop { display:block; }
@keyframes micPulse { 0%,100% { box-shadow:0 0 0 0 rgba(239,68,68,.5); } 50% { box-shadow:0 0 0 14px rgba(239,68,68,0); } }

/* ===== More Tools Dropdown ===== */
.more-tools-menu { position:absolute; top:calc(48px + var(--safe-top)); right:20px; background:var(--bg); border:1px solid var(--border); border-radius:12px; box-shadow:var(--shadow-lg); z-index:30; padding:6px; min-width:180px; display:flex; flex-direction:column; gap:2px; animation:scaleIn 0.15s ease; }
.tool-menu-item { display:flex; align-items:center; gap:10px; padding:10px 14px; border:none; background:none; color:var(--fg); font-size:14px; border-radius:8px; cursor:pointer; transition:all 0.15s ease; white-space:nowrap; }
.tool-menu-item:hover { background:var(--bg3); }
.tool-menu-item:active { transform:scale(0.97); }
.tool-menu-item span { font-size:16px; flex-shrink:0; width:22px; text-align:center; }
.tool-menu-item svg { flex-shrink:0; color:var(--fg2); }
@media(max-width:768px) {
  .more-tools-menu { right:10px; left:10px; min-width:unset; }
  .tool-menu-item { padding:14px 16px; font-size:15px; }
}

/* ===== Agent Cards ===== */
.agent-card { transition:all 0.15s ease; }
.agent-card:active { transform:scale(0.98); }
.agent-tabs { display:flex; border-bottom:1px solid var(--border); margin-bottom:12px; gap:0; }
.agent-tabs .tab { padding:10px 16px; border:none; background:none; color:var(--fg2); font-size:13px; font-weight:500; cursor:pointer; border-bottom:2px solid transparent; transition:all var(--transition); }
.agent-tabs .tab.active { color:var(--primary); border-bottom-color:var(--primary); }
.custom-agent-form { display:flex; flex-direction:column; gap:10px; }
.custom-agent-form input, .custom-agent-form textarea { width:100%; padding:10px 12px; border:1px solid var(--border); border-radius:var(--radius-xs); background:var(--bg2); color:var(--fg); font-size:14px; font-family:var(--font); }
.custom-agent-form textarea { min-height:100px; resize:vertical; }
.custom-agent-form input:focus, .custom-agent-form textarea:focus { outline:none; border-color:var(--primary); }
.btn-create-agent { padding:12px; border-radius:var(--radius-xs); border:none; background:var(--primary); color:white; font-size:14px; font-weight:500; cursor:pointer; }
.btn-create-agent:active { transform:scale(0.97); opacity:0.9; }

/* PWA standalone interpreter */
@media(display-mode:standalone) {
  .interp-topbar { padding-top:max(env(safe-area-inset-top, 20px), 48px); }
}

/* Lightweight confirm dialog */
.confirm-overlay { position:fixed; inset:0; z-index:9999; display:flex; align-items:center; justify-content:center; }
.confirm-backdrop { position:absolute; inset:0; background:rgba(0,0,0,.35); }
.confirm-box { position:relative; background:var(--bg1,#fff); border-radius:12px; padding:20px 24px; width:260px; max-width:85vw; box-shadow:0 8px 32px rgba(0,0,0,.18); text-align:center; }
.confirm-title { margin:0 0 6px; font-size:15px; font-weight:600; color:var(--fg,#1a1a2e); }
.confirm-desc { margin:0 0 16px; font-size:13px; color:var(--fg2,#666); }
.confirm-btns { display:flex; gap:10px; justify-content:center; }
.confirm-btns button { flex:1; padding:8px 0; border:none; border-radius:8px; font-size:13px; font-weight:500; cursor:pointer; transition:opacity .15s; }
.confirm-btns button:active { opacity:.7; }
#confirm-cancel { background:var(--bg3,#eee); color:var(--fg,#333); }
#confirm-ok { background:#e53935; color:#fff; }

/* File tags in messages */
.msg-files { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:8px; }
.msg-file-tag { display:inline-flex; align-items:center; gap:5px; padding:5px 12px; border-radius:100px; background:var(--primary-light); color:var(--primary); font-size:12px; font-weight:500; border:1px solid var(--primary-light); }

/* ===== Grok-style Streaming Popup ===== */
.stream-popup { position:fixed; inset:0; z-index:150; display:flex; align-items:center; justify-content:center; opacity:0; transition:opacity 0.25s ease; }
.stream-popup.active { opacity:1; }
.stream-popup.closing { opacity:0; transition:opacity 0.25s ease; }
.stream-popup-backdrop { position:absolute; inset:0; background:rgba(0,0,0,0.35); }
.stream-popup-panel { position:relative; width:92%; max-width:680px; max-height:78vh; background:var(--bg); border-radius:var(--radius-sm); border:1px solid var(--border); box-shadow:var(--shadow-lg); display:flex; flex-direction:column; overflow:hidden; transform:translateY(16px) scale(0.97); transition:transform 0.3s cubic-bezier(0.4,0,0.2,1); }
.stream-popup.active .stream-popup-panel { transform:translateY(0) scale(1); }
.stream-popup.closing .stream-popup-panel { transform:translateY(8px) scale(0.98); }
.stream-popup-header { display:flex; align-items:center; gap:10px; padding:14px 20px; border-bottom:1px solid var(--border); flex-shrink:0; }
.stream-popup-model { display:flex; align-items:center; gap:8px; flex:1; }
.stream-popup-dot { width:6px; height:6px; border-radius:50%; background:var(--primary); animation:pulse 1.2s infinite; flex-shrink:0; }
.stream-popup-title { font-size:13px; font-weight:600; color:var(--fg); }
.stream-popup-timer { font-size:11px; color:var(--fg3); font-family:var(--font-mono); background:var(--bg2); padding:3px 8px; border-radius:100px; }
.stream-popup-stop { width:28px; height:28px; border-radius:6px; border:1px solid var(--border); background:transparent; color:var(--fg2); font-size:12px; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:all 0.15s ease; flex-shrink:0; }
.stream-popup-stop:hover { background:var(--error); color:white; border-color:var(--error); }
.stream-popup-body { flex:1; overflow-y:auto; padding:20px 24px; min-height:120px; scroll-behavior:smooth; }
.stream-popup-content { font-size:15px; line-height:1.75; color:var(--fg); word-break:break-word; }
.stream-popup-content p { margin-bottom:10px; }
.stream-popup-content pre { background:var(--bg3); border:1px solid var(--border); padding:14px 16px; border-radius:var(--radius-xs); overflow-x:auto; margin:10px 0; font-size:13px; line-height:1.6; }
.stream-popup-content code { font-family:var(--font-mono); font-size:13px; background:var(--bg3); padding:2px 5px; border-radius:3px; }
.stream-popup-content pre code { background:none; padding:0; }
.stream-popup-content a { color:var(--primary); }
.stream-popup-content blockquote { border-left:3px solid var(--primary); padding:4px 12px; margin:6px 0; background:var(--bg3); border-radius:0 var(--radius-xs) var(--radius-xs) 0; }

/* Thinking section inside popup */
.stream-thinking { margin-bottom:16px; padding:12px 14px; border-radius:8px; background:var(--bg2); border:1px solid var(--border); }
.stream-thinking-label { font-size:11px; font-weight:600; color:var(--fg3); margin-bottom:6px; display:flex; align-items:center; gap:6px; text-transform:uppercase; letter-spacing:0.3px; }
.stream-thinking-label::before { content:''; width:5px; height:5px; border-radius:50%; background:var(--fg3); animation:pulse 1.2s infinite; }
.stream-thinking-text { font-size:13px; line-height:1.6; color:var(--fg2); max-height:200px; overflow-y:auto; }

/* Popup mobile */
@media(max-width:768px) {
  .stream-popup-panel { width:100%; max-width:100%; max-height:100vh; max-height:100dvh; border-radius:var(--radius) var(--radius) 0 0; margin-top:auto; }
  .stream-popup { align-items:flex-end; }
  .stream-popup-panel { max-height:85vh; max-height:85dvh; }
  .stream-popup.active .stream-popup-panel { transform:translateY(0) scale(1); }
  .stream-popup-body { padding:16px 18px; }
}

/* ===== 布局打磨层 (仅增强已有选择器的安全属性) ===== */

/* 消息区：更舒适的阅读宽度与节奏 */
.messages { padding:28px 20px 8px; }
.msg-group { gap:14px; }
.msg-body { gap:5px; }

/* 用户气泡：加一点景深，与透明的 AI 消息形成层次 */
.msg-user { box-shadow:0 2px 12px rgba(99,102,241,0.22); }

/* AI 头像：柔和外发光，呼应主色 */
.msg-group.ai .msg-avatar { box-shadow:0 2px 12px rgba(99,102,241,0.25); }

/* 元信息（模型名/耗时）更轻盈 */
.msg-info { opacity:0.85; }

/* 输入框：聚焦时更顺滑的过渡 */
.input-area { transition:border-color 0.18s ease, box-shadow 0.18s ease; }

/* 顶栏：滚动时与内容拉开层次（玻璃质感在主定义中） */

/* 工具 chip：选中态更醒目 */
.toolbar-chip.active { box-shadow:var(--glow); }

/* 侧边栏对话项：选中态左侧品牌渐变细条，定位安全不影响布局 */
.chat-item.active::before { content:''; position:absolute; left:4px; top:50%; transform:translateY(-50%); width:3px; height:60%; border-radius:3px; background:var(--brand-grad); }

/* 滚动条：悬停时更清晰 */
.messages:hover::-webkit-scrollbar-thumb { background:var(--fg3); }

/* 代码块：更柔和的圆角阴影 */
.msg pre { box-shadow:0 1px 4px rgba(0,0,0,0.04); }

/* ===== 思考模式选择菜单 ===== */
.thinking-menu { position:fixed; z-index:160; min-width:160px; background:var(--bg); border:1px solid var(--border); border-radius:14px; box-shadow:var(--shadow-lg); padding:6px; display:flex; flex-direction:column; gap:2px; opacity:0; transform:translateY(8px) scale(0.97); transform-origin:bottom left; transition:opacity 0.15s ease, transform 0.15s cubic-bezier(0.4,0,0.2,1); }
.thinking-menu.open { opacity:1; transform:translateY(0) scale(1); }
.thinking-menu-item { display:flex; align-items:center; gap:10px; width:100%; padding:9px 12px; border:none; background:none; color:var(--fg); font-size:14px; border-radius:9px; cursor:pointer; text-align:left; transition:background 0.12s ease; font-family:var(--font); }
.thinking-menu-item:hover { background:var(--bg2); }
.thinking-menu-item.active { background:var(--primary-light); color:var(--primary); font-weight:600; }
.thinking-menu-item .tm-icon { font-size:15px; flex-shrink:0; width:20px; text-align:center; }
.thinking-menu-item .tm-label { flex:1; }
.thinking-menu-item .tm-check { color:var(--primary); font-weight:700; font-size:13px; }