/* AI Search — Perplexity-inspired design */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root {
  --bg: #ffffff;
  --bg-s: #f7f7f5;
  --bg-h: #ececea;
  --bg-input: #f5f5f3;
  --text: #1b1b1b;
  --text-s: #64645f;
  --text-t: #9d9d97;
  --accent: #20808d;
  --accent-h: #1a6b76;
  --accent-bg: #e6f4f1;
  --blue: #197de2;
  --blue-bg: #eef4fd;
  --border: #e8e8e3;
  --border-l: #f0f0eb;
  --shadow-s: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-m: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-l: 0 4px 16px rgba(0,0,0,0.08);
  --r: 8px;
  --r-l: 16px;
  --r-xl: 24px;
  --r-pill: 999px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  --max-w: 768px;
  --sidebar-w: 260px;
  --transition: .15s ease;
}

html{font-size:15px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;min-height:100vh;-webkit-font-smoothing:antialiased;display:flex}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{display:block;max-width:100%}

/* ─── Sidebar ─── */
.sidebar{width:var(--sidebar-w);height:100vh;position:fixed;left:0;top:0;z-index:200;background:var(--bg-s);border-right:1px solid var(--border-l);display:flex;flex-direction:column;overflow:hidden;transition:transform .25s ease}
.sb-header{padding:16px 16px 12px;display:flex;align-items:center;justify-content:space-between}
.sb-logo{font-size:15px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:6px;text-decoration:none;letter-spacing:-.02em}
.sb-logo:hover{text-decoration:none;opacity:.8}
.sb-logo svg{width:20px;height:20px;color:var(--accent)}
.sb-close{display:none;background:none;border:none;cursor:pointer;color:var(--text-t);padding:4px;border-radius:var(--r)}
.sb-close:hover{background:var(--bg-h);color:var(--text)}
.sb-close svg{width:18px;height:18px}
.sb-new{display:flex;align-items:center;gap:8px;margin:0 12px 12px;padding:8px 12px;border:1px dashed var(--border);border-radius:var(--r);color:var(--text-s);font-size:13px;font-weight:500;text-decoration:none;transition:all var(--transition)}
.sb-new:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg);text-decoration:none}
.sb-new svg{width:14px;height:14px}
.sb-threads{flex:1;overflow-y:auto;padding:0 8px 16px;scrollbar-width:thin}
.sb-group{margin-bottom:8px}
.sb-group-label{font-size:10.5px;font-weight:600;color:var(--text-t);text-transform:uppercase;letter-spacing:.08em;padding:8px 8px 4px}
.sb-thread{display:flex;align-items:center;gap:6px;padding:7px 10px;border-radius:var(--r);color:var(--text);font-size:13px;text-decoration:none;transition:all var(--transition);position:relative}
.sb-thread:hover{background:var(--bg-h);text-decoration:none}
.sb-thread.active{background:var(--accent-bg);color:var(--accent);font-weight:500}
.sb-thread-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sb-thread-del{display:none;background:none;border:none;cursor:pointer;color:var(--text-t);padding:2px;border-radius:4px;flex-shrink:0}
.sb-thread:hover .sb-thread-del{display:block}
.sb-thread-del:hover{color:#dc2626;background:rgba(220,38,38,.08)}
.sb-thread-del svg{width:13px;height:13px}
.sb-empty{padding:20px 12px;text-align:center;color:var(--text-t);font-size:12.5px}

/* ─── Overlay (mobile sidebar) ─── */
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:150;opacity:0;transition:opacity .25s ease}
.overlay.open{display:block;opacity:1}

/* ─── Main content ─── */
.main{margin-left:var(--sidebar-w);flex:1;min-height:100vh;position:relative;overflow-y:auto;display:flex;flex-direction:column}
.menu-btn{display:none;position:fixed;top:12px;left:12px;z-index:100;background:var(--bg);border:1px solid var(--border);border-radius:var(--r);padding:6px;cursor:pointer;color:var(--text-s);transition:all var(--transition)}
.menu-btn:hover{background:var(--bg-s);color:var(--text)}
.menu-btn svg{width:18px;height:18px}

/* ─── Home ─── */
.home{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:24px 20px}
.home-center{display:flex;flex-direction:column;align-items:center;max-width:600px;width:100%}
.home-h{margin-bottom:16px}
.home-h svg{width:40px;height:40px;color:var(--accent)}
.home-title{font-size:24px;font-weight:700;letter-spacing:-.03em;margin-bottom:28px;text-align:center;color:var(--text)}

/* ─── Search box ─── */
.sb-box{width:100%}
.sb-row{display:flex;align-items:center;border:1px solid var(--border);border-radius:var(--r-xl);background:var(--bg);padding:4px;box-shadow:var(--shadow-s);transition:border var(--transition),box-shadow var(--transition)}
.sb-row:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(32,128,141,.12),var(--shadow-m)}
.sb-input{flex:1;height:44px;padding:0 16px;border:none;background:transparent;font:15px var(--font);color:var(--text);outline:none}
.sb-input::placeholder{color:var(--text-t)}
.sb-btn{width:38px;height:38px;border:none;border-radius:50%;background:var(--accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background var(--transition),transform var(--transition)}
.sb-btn:hover{background:var(--accent-h);transform:scale(1.04)}
.sb-btn svg{width:16px;height:16px}

/* ─── Model toggles (home) ─── */
.mt{display:flex;gap:6px;margin-top:14px;flex-wrap:wrap;justify-content:center}
.mc{padding:5px 14px;border:1px solid var(--border);border-radius:var(--r-pill);font:12.5px/1 var(--font);font-weight:500;color:var(--text-s);cursor:pointer;background:var(--bg);transition:all var(--transition);user-select:none}
.mc:hover{border-color:var(--accent);color:var(--accent)}
.mc.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.mc input{display:none}

/* ─── Thread view ─── */
.thread-view{display:flex;flex-direction:column;flex:1;max-width:var(--max-w);width:100%;margin:0 auto;padding:0 20px}
.messages{flex:1;padding:24px 0 20px}

/* ─── Messages ─── */
.msg{margin-bottom:24px}

/* User message — chat bubble, right-aligned */
.msg-user{display:flex;justify-content:flex-end;align-items:flex-start;gap:6px}
.msg-user-actions{display:flex;gap:2px;opacity:0;transition:opacity var(--transition);padding-top:6px}
.msg-user:hover .msg-user-actions{opacity:1}
.msg-action{background:none;border:none;cursor:pointer;color:var(--text-t);padding:4px;border-radius:4px;transition:all var(--transition)}
.msg-action:hover{background:var(--bg-s);color:var(--text)}
.msg-action svg{width:14px;height:14px}
.msg-user-text{background:var(--bg-s);padding:10px 16px;border-radius:var(--r-l) var(--r-l) 4px var(--r-l);font-size:14.5px;font-weight:500;color:var(--text);max-width:80%;word-wrap:break-word}

/* AI message */
.msg-ai{margin-bottom:32px}
.msg-ai-inner{padding:0}

/* ─── Source cards (horizontal scroll, vertical layout with thumbnails) ─── */
.src-row{display:flex;gap:8px;overflow-x:auto;padding-bottom:14px;margin-bottom:6px;scrollbar-width:none}
.src-row::-webkit-scrollbar{display:none}
.src-card{flex-shrink:0;width:172px;background:var(--bg-s);border:1px solid var(--border-l);border-radius:var(--r);display:flex;flex-direction:column;text-decoration:none;color:var(--text);font-size:12.5px;overflow:hidden;transition:all var(--transition)}
.src-card:hover{border-color:var(--border);box-shadow:var(--shadow-m);text-decoration:none;transform:translateY(-1px)}
.src-card-img{height:80px;background:var(--bg-h);overflow:hidden;position:relative}
.src-card-img img{width:100%;height:100%;object-fit:cover}
.src-card-img .src-card-num{position:absolute;top:6px;left:6px;z-index:1}
.src-card-main{display:flex;align-items:center;gap:8px}
.src-card-body{padding:8px 10px;display:flex;flex-direction:column;gap:2px}
.src-card-num{width:18px;height:18px;display:flex;align-items:center;justify-content:center;font-size:9.5px;font-weight:700;background:var(--accent);color:#fff;border-radius:4px;flex-shrink:0}
.src-card-ico{width:16px;height:16px;border-radius:3px;flex-shrink:0}
.src-card-info{min-width:0}
.src-card-head{display:flex;align-items:center;gap:6px;margin-bottom:2px}
.src-card-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500;font-size:12px;line-height:1.3}
.src-card-domain{color:var(--text-t);font-size:10.5px}

/* ─── Answer header ─── */
.ans-header{display:flex;align-items:center;gap:6px;margin-bottom:10px}
.ans-icon{display:flex;color:var(--accent)}
.ans-icon svg{width:18px;height:18px}
.ans-label{font-size:13px;font-weight:600;color:var(--text-s);text-transform:uppercase;letter-spacing:.04em}

/* ─── Answer body ─── */
.ans-body{font-size:15px;line-height:1.75;color:var(--text)}
.ans-body h1,.ans-body h2,.ans-body h3,.ans-body h4{margin:20px 0 8px;font-weight:600;line-height:1.3;color:var(--text)}
.ans-body h1{font-size:20px}.ans-body h2{font-size:17px}.ans-body h3{font-size:15.5px}
.ans-body p{margin-bottom:12px}
.ans-body ul,.ans-body ol{margin:0 0 12px 20px}
.ans-body li{margin-bottom:4px}
.ans-body li::marker{color:var(--text-t)}
.ans-body blockquote{border-left:2px solid var(--accent);padding:6px 14px;margin:12px 0;background:var(--bg-s);border-radius:0 var(--r) var(--r) 0;color:var(--text-s);font-size:14px}
.ans-body code{background:var(--bg-s);padding:1.5px 5px;border-radius:4px;font:12.5px var(--mono)}
.ans-body a{color:var(--blue)}
.ans-body strong{font-weight:600}
.ans-body hr{border:none;border-top:1px solid var(--border-l);margin:16px 0}
.ans-body .table-wrap{overflow-x:auto;margin:12px 0;border:1px solid var(--border);border-radius:var(--r)}
.ans-body table{border-collapse:collapse;width:100%;font-size:13px}
.ans-body th,.ans-body td{border-bottom:1px solid var(--border-l);padding:8px 12px;text-align:left}
.ans-body th{background:var(--bg-s);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-s)}

/* Code blocks */
.cb{margin:12px 0;border-radius:var(--r);overflow:hidden;border:1px solid var(--border);background:#fafaf8}
.cb-h{display:flex;justify-content:space-between;align-items:center;padding:6px 12px;background:var(--bg-s);border-bottom:1px solid var(--border-l);font-size:11.5px;color:var(--text-t)}
.cb-cp{background:none;border:1px solid var(--border);border-radius:5px;padding:1px 8px;font:11px var(--font);color:var(--text-s);cursor:pointer;transition:all var(--transition)}
.cb-cp:hover{background:var(--bg-h);color:var(--text)}
.cb pre{padding:12px;margin:0;overflow-x:auto}
.cb code{font:12.5px/1.6 var(--mono);background:none;padding:0}

/* Citation refs */
.cr{display:inline-flex;align-items:center;justify-content:center;min-width:16px;height:16px;padding:0 4px;font-size:10px;font-weight:700;background:var(--blue-bg);color:var(--blue);border-radius:4px;vertical-align:super;text-decoration:none;margin:0 1px;transition:all var(--transition);cursor:pointer}
.cr:hover{background:var(--blue);color:#fff;text-decoration:none}

/* ─── Citation hover preview ─── */
.cite-preview{display:none;position:absolute;z-index:1000;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-l);box-shadow:var(--shadow-l);max-width:360px;min-width:240px;animation:fadeIn .15s ease;backdrop-filter:blur(8px);overflow:hidden}
.cp-thumb{height:120px;overflow:hidden;background:var(--bg-h)}
.cp-thumb img{width:100%;height:100%;object-fit:cover}
.cp-body{padding:12px 16px}
.cp-domain{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--text-t);margin-bottom:6px}
.cp-domain img{width:16px;height:16px;border-radius:4px}
.cp-title{font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.cp-snippet{font-size:12px;color:var(--text-s);margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.cp-url{font-size:10.5px;color:var(--accent);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}

/* ─── Tabs ─── */
.tabs{margin-bottom:12px}
.tab-bar{display:flex;gap:0;border-bottom:1px solid var(--border-l);margin-bottom:16px}
.tab{display:flex;align-items:center;gap:5px;padding:8px 14px;background:none;border:none;border-bottom:2px solid transparent;font:13px var(--font);font-weight:500;color:var(--text-t);cursor:pointer;transition:all var(--transition);white-space:nowrap}
.tab:hover{color:var(--text)}
.tab.active{color:var(--text);border-bottom-color:var(--accent)}
.tab svg{width:14px;height:14px}
.tab-count{font-size:10px;font-weight:600;background:var(--bg-h);color:var(--text-t);padding:1px 5px;border-radius:var(--r-pill);margin-left:2px}
.tab.active .tab-count{background:var(--accent-bg);color:var(--accent)}
.tab-content{display:none}
.tab-content.active{display:block}

/* ─── Links tab ─── */
.links-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.link-card{display:block;border:1px solid var(--border-l);border-radius:var(--r);text-decoration:none;color:var(--text);transition:all var(--transition);overflow:hidden}
.link-card:hover{border-color:var(--border);box-shadow:var(--shadow-m);text-decoration:none;transform:translateY(-1px)}
.link-card-img{height:140px;background:var(--bg-h);overflow:hidden}
.link-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.link-card:hover .link-card-img img{transform:scale(1.03)}
.link-card-body{padding:12px}
.link-card-head{display:flex;align-items:center;gap:6px;margin-bottom:6px}
.link-card-head img{width:16px;height:16px;border-radius:3px}
.link-card-num{font-size:10px;font-weight:700;color:#fff;background:var(--accent);padding:2px 6px;border-radius:4px}
.link-card-title{font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:3px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.35}
.link-card-domain{font-size:11px;color:var(--accent);margin-bottom:4px;font-weight:500}
.link-card-snippet{font-size:12px;color:var(--text-s);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.link-card-img:empty{display:none}
.link-card-img[data-needs-og]{background:var(--bg-h);min-height:100px;display:flex;align-items:center;justify-content:center}
.link-card-img[data-needs-og]::before{content:'';width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:sp .7s linear infinite}
.src-card-img:empty{display:none}

/* ─── Images tab ─── */
.images-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px}
.img-card{display:block;border-radius:var(--r);overflow:hidden;text-decoration:none;color:var(--text);transition:all var(--transition);border:1px solid var(--border-l)}
.img-card:hover{box-shadow:var(--shadow-m);text-decoration:none;border-color:var(--border)}
.img-card img{width:100%;height:120px;object-fit:cover}
.img-card-title{padding:6px 8px;font-size:11.5px;color:var(--text-s);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ─── Videos tab ─── */
.videos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.vid-card{display:block;text-decoration:none;color:var(--text);transition:all var(--transition)}
.vid-card:hover{text-decoration:none}
.vid-thumb{position:relative;border-radius:var(--r);overflow:hidden;background:var(--bg-h);aspect-ratio:16/9}
.vid-thumb img{width:100%;height:100%;object-fit:cover}
.vid-thumb-ph{width:100%;height:100%;background:var(--bg-h)}
.vid-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;background:rgba(0,0,0,.7);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;transition:all var(--transition)}
.vid-card:hover .vid-play{background:rgba(0,0,0,.85);transform:translate(-50%,-50%) scale(1.08)}
.vid-play svg{width:16px;height:16px;margin-left:2px}
.vid-dur{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.75);color:#fff;font-size:10.5px;font-weight:500;padding:1px 5px;border-radius:3px}
.vid-title{font-size:13px;font-weight:500;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ─── Related queries ─── */
.related{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px;padding-top:12px;border-top:1px solid var(--border-l)}
.related-btn{padding:7px 14px;background:var(--bg-s);border:1px solid transparent;border-radius:var(--r-pill);font:12.5px var(--font);color:var(--text);cursor:pointer;transition:all var(--transition);text-align:left}
.related-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}

/* ─── Follow-up input (sticky bottom) ─── */
.followup{position:sticky;bottom:0;background:var(--bg);padding:12px 0 20px;border-top:1px solid var(--border-l)}
.followup-box{display:flex;align-items:center;border:1px solid var(--border);border-radius:var(--r-xl);background:var(--bg);padding:4px;box-shadow:var(--shadow-s);transition:border var(--transition),box-shadow var(--transition)}
.followup-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(32,128,141,.12)}
.followup-input{flex:1;height:40px;padding:0 14px;border:none;background:transparent;font:14px var(--font);color:var(--text);outline:none}
.followup-input::placeholder{color:var(--text-t)}
.followup-input:disabled{opacity:.5}
.followup-actions{display:flex;align-items:center;gap:4px;padding-right:2px}
.followup-mode{position:relative}
.followup-mode-btn{display:flex;align-items:center;gap:3px;padding:5px 10px;background:var(--bg-s);border:none;border-radius:var(--r-pill);font:12px var(--font);font-weight:500;color:var(--text-s);cursor:pointer;transition:all var(--transition)}
.followup-mode-btn:hover{background:var(--bg-h);color:var(--text)}
.followup-mode-btn svg{width:12px;height:12px}
.mode-menu{display:none;position:absolute;bottom:calc(100% + 6px);right:0;background:var(--bg);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow-l);padding:4px;min-width:120px;z-index:50}
.mode-menu.open{display:block}
.mode-option{display:block;width:100%;padding:6px 12px;background:none;border:none;border-radius:5px;font:13px var(--font);color:var(--text);cursor:pointer;text-align:left;transition:all var(--transition)}
.mode-option:hover{background:var(--bg-s)}
.mode-option.active{color:var(--accent);font-weight:500}
.followup-send{width:34px;height:34px;border:none;border-radius:50%;background:var(--accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background var(--transition)}
.followup-send:hover{background:var(--accent-h)}
.followup-send:disabled{opacity:.5;cursor:not-allowed}
.followup-send svg{width:14px;height:14px}

/* ─── Thinking steps ─── */
.thinking-section{margin-bottom:14px}
.thinking-toggle{display:flex;align-items:center;gap:7px;padding:7px 12px;background:var(--bg-s);border:1px solid var(--border-l);border-radius:var(--r-pill);cursor:pointer;font:12.5px var(--font);font-weight:500;color:var(--text-s);transition:all var(--transition);user-select:none;width:fit-content}
.thinking-toggle:hover{background:var(--bg-h);color:var(--text);border-color:var(--border)}
.thinking-toggle svg:first-child{width:14px;height:14px;color:var(--accent)}
.thinking-toggle svg:last-child{width:12px;height:12px;transition:transform .2s ease;color:var(--text-t)}
.thinking-toggle.open svg:last-child{transform:rotate(180deg)}
.thinking-toggle .thinking-label{display:flex;align-items:center;gap:5px}
.thinking-toggle .thinking-count{font-size:10px;font-weight:600;background:var(--accent-bg);color:var(--accent);padding:2px 7px;border-radius:var(--r-pill)}
.thinking-steps{display:none;margin-top:8px;padding:8px 0 8px 14px;border-left:2px solid var(--accent-bg)}
.thinking-steps.open{display:block}
.thinking-step{display:flex;align-items:flex-start;gap:8px;padding:5px 0;font-size:13px;line-height:1.5;color:var(--text-s);position:relative}
.thinking-step+.thinking-step{margin-top:2px}
.thinking-step-type{display:inline-flex;align-items:center;font-size:9.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#fff;padding:2px 7px;border-radius:4px;flex-shrink:0;margin-top:1px}
.thinking-step-type[data-type="INITIAL_QUERY"],.thinking-step-type[data-type="INITIAL"]{background:#6366f1}
.thinking-step-type[data-type="SEARCH_WEB"]{background:var(--accent)}
.thinking-step-type[data-type="SEARCH_RESULTS"]{background:#059669}
.thinking-step-type[data-type="READING"],.thinking-step-type[data-type="ANALYZE"]{background:#d97706}
.thinking-step-type[data-type="THINKING"],.thinking-step-type[data-type="REASONING"]{background:#7c3aed}
.thinking-step-content{color:var(--text-s);flex:1;min-width:0}
.thinking-step-content code{background:var(--bg-s);padding:1px 4px;border-radius:3px;font:11.5px var(--mono)}
.thinking-step-time{font-size:10px;color:var(--text-t);flex-shrink:0;font-variant-numeric:tabular-nums;min-width:2.5em;text-align:right}

/* Streaming thinking: animated steps */
.thinking-streaming .thinking-step:last-child::after{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-left:6px;vertical-align:middle;animation:dotPulse 1.4s ease-in-out infinite}

/* ─── Search progress indicator ─── */
.search-progress{position:relative;padding:20px 0;color:var(--text-s);font-size:14px;overflow:hidden;border-radius:var(--r)}
.progress-shimmer{position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(32,128,141,.04),transparent);animation:shimmer 2s ease-in-out infinite}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.progress-inner{display:flex;align-items:center;gap:12px;position:relative}
.progress-dots{display:flex;gap:4px}
.progress-dots span{width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.3;animation:dotPulse 1.4s ease-in-out infinite}
.progress-dots span:nth-child(2){animation-delay:.2s}
.progress-dots span:nth-child(3){animation-delay:.4s}
@keyframes dotPulse{0%,80%,100%{opacity:.3;transform:scale(1)}40%{opacity:1;transform:scale(1.3)}}
.progress-text{font-weight:500;color:var(--text-s)}
.progress-timer{font-size:12px;font-weight:600;color:var(--text-t);font-variant-numeric:tabular-nums;min-width:3em;text-align:right}
.fade-out{opacity:0;transition:opacity .3s ease}

/* ─── Timing bar (shown after search completes) ─── */
.timing-bar{display:flex;align-items:center;gap:8px;padding:4px 0 12px;font-size:11.5px;color:var(--text-t)}
.timing-total{font-weight:600;color:var(--text-s);display:flex;align-items:center;gap:4px}
.timing-total svg{width:12px;height:12px;color:var(--accent)}
.timing-detail{cursor:help;padding:2px 8px;background:var(--bg-s);border-radius:var(--r-pill);font-variant-numeric:tabular-nums;font-size:10.5px}

/* ─── Streaming cursor ─── */
.streaming .cursor{display:inline-block;width:2px;height:1em;background:var(--accent);margin-left:2px;animation:blink .8s infinite;vertical-align:text-bottom}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}

/* ─── Stream error ─── */
.stream-error{padding:12px 16px;background:#fef2f2;border:1px solid #fecaca;border-radius:var(--r);color:#dc2626;font-size:13.5px}

/* ─── Badge ─── */
.badge{display:inline-flex;align-items:center;padding:2px 7px;border-radius:4px;font-size:10.5px;font-weight:600;background:var(--bg-s);color:var(--text-t);text-transform:uppercase;letter-spacing:.04em}

/* ─── History ─── */
.history{max-width:var(--max-w);width:100%;margin:0 auto;padding:28px 20px}
.history h1{font-size:22px;font-weight:700;margin-bottom:20px;letter-spacing:-.02em}
.history-list{display:flex;flex-direction:column;gap:2px}
.history-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r);text-decoration:none;color:var(--text);transition:background var(--transition)}
.history-item:hover{background:var(--bg-s);text-decoration:none}
.history-item-body{flex:1;min-width:0}
.history-item-title{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.history-item-meta{font-size:12px;color:var(--text-t);display:flex;gap:8px;align-items:center;margin-top:2px}
.history-item-del{color:var(--text-t);background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;opacity:0;transition:all var(--transition);flex-shrink:0}
.history-item:hover .history-item-del{opacity:1}
.history-item-del:hover{color:#dc2626;background:rgba(220,38,38,.06)}
.history-item-del svg{width:14px;height:14px}
.history-empty{text-align:center;padding:60px 20px;color:var(--text-t)}
.history-empty svg{width:40px;height:40px;margin-bottom:10px;opacity:.3}
.history-empty p{font-size:14px;margin-bottom:16px}

/* ─── Error ─── */
.error-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;padding:24px;text-align:center}
.error-page h1{font-size:22px;margin-bottom:6px}
.error-page p{color:var(--text-s);font-size:14px;margin-bottom:20px;max-width:400px}

/* ─── Buttons ─── */
.btn-primary{padding:9px 22px;background:var(--accent);color:#fff;border-radius:var(--r-pill);font-size:13px;font-weight:500;transition:background var(--transition);display:inline-block;text-decoration:none}
.btn-primary:hover{background:var(--accent-h);text-decoration:none}

/* ─── Loading ─── */
.ld{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;gap:12px;color:var(--text-t);font-size:14px}
.spin{width:24px;height:24px;border:2.5px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:sp .7s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}

/* ─── Responsive ─── */
@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sb-close{display:block}
  .main{margin-left:0}
  .menu-btn{display:flex}
}
@media(max-width:640px){
  .thread-view{padding:0 14px}
  .history{padding:20px 14px}
  .home{padding:20px 14px}
  .sb-box{max-width:100%}
  .home-title{font-size:20px}
  .sb-input{font-size:14px;height:40px}
  .sb-btn{width:34px;height:34px}
  .mt{gap:4px}
  .mc{padding:4px 10px;font-size:11.5px}
  .msg-user-text{max-width:90%}
  .links-grid{grid-template-columns:1fr}
  .videos-grid{grid-template-columns:1fr}
  .images-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
  .tab{padding:6px 10px;font-size:12px}
}