:root{
  --navy:#0D1B35;--brand:#1A3A6E;--accent:#C8993A;--light:#F4F7FB;--mid:#E2E8F2;--border:#CDD6E4;
  --text:#1C2B42;--muted:#5A6E88;--green:#2E7D5B;--green-bg:#EAF5EF;--green-border:#A8DCC5;
  --red:#8B1A1A;--red-bg:#FBF0F0;--red-border:#E8B4B4;--amber:#C86830;--amber-bg:#FDF3EC;--amber-border:#F0BFA0;
  --blue:#1A5FA8;--blue-bg:#EAF1FB;--blue-border:#A0C2E8;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'DM Sans',system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text);background:#EDF1F7;-webkit-font-smoothing:antialiased;}
button{font:inherit;}
.app{max-width:1100px;margin:24px auto;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 16px 64px rgba(13,27,53,.18);}

/* top bar */
.top{background:var(--navy);display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 32px;}
.brand{font-family:'DM Serif Display',Georgia,serif;font-size:24px;color:#fff;}
.brand em{color:var(--accent);}
.badge{background:rgba(200,153,58,.16);border:1px solid rgba(200,153,58,.5);color:var(--accent);font-size:10px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;border-radius:999px;padding:5px 12px;white-space:nowrap;}

.privacy{display:flex;gap:12px;align-items:flex-start;background:var(--green-bg);border-bottom:1px solid var(--green-border);padding:12px 32px;color:#1F5A41;font-size:12px;line-height:1.55;}
.privacy svg{flex-shrink:0;margin-top:1px;}
.privacy strong{color:#1F5A41;}

/* panels */
.panel{padding:28px 32px;border-bottom:1px solid var(--mid);}
.eye{font-size:9.5px;text-transform:uppercase;letter-spacing:2px;color:var(--accent);font-weight:700;}
h2{font-family:'DM Serif Display',Georgia,serif;font-weight:400;font-size:21px;color:var(--navy);margin:4px 0 6px;}
h3{font-family:'DM Serif Display',Georgia,serif;font-weight:400;font-size:18px;color:var(--navy);margin-bottom:6px;}
.desc{font-size:12.5px;color:var(--muted);line-height:1.6;margin-bottom:16px;max-width:820px;}


.sp{display:flex;justify-content:space-between;align-items:center;gap:20px;background:var(--blue-bg);border:1px solid var(--blue-border);border-left:4px solid var(--brand);border-radius:10px;padding:14px 18px;margin-bottom:14px;}
.sp-title{font-family:'DM Serif Display',Georgia,serif;font-size:16px;color:var(--navy);}
.sp-date{font-size:12px;color:var(--muted);margin:2px 0 6px;}
.sp-date b{color:var(--green);font-weight:700;}
.sp-txt p{font-size:11.5px;color:var(--muted);line-height:1.55;max-width:600px;}
.sp-act{display:flex;flex-direction:column;align-items:center;gap:6px;flex-shrink:0;}
.sp-act .btn svg{margin-right:2px;}
.sp-lock{display:inline-flex;align-items:center;gap:5px;font-size:10.5px;font-weight:600;color:var(--brand);}
.drops{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.drop{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;border:2px dashed var(--border);border-radius:12px;padding:22px 18px;cursor:pointer;background:var(--light);transition:border-color .15s,background .15s;}
.drop:hover,.drop:focus,.drop.over{border-color:var(--accent);background:#FBF5E8;outline:none;}
.drop.done{border-style:solid;border-color:var(--green-border);background:var(--green-bg);}
.drop-ic{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:12px;font-size:11px;font-weight:800;letter-spacing:.5px;color:#fff;}
.drop-ic.csv{background:linear-gradient(145deg,#3D4F66,#1E2A3B);color:var(--accent);}
.drop-ic.xl{background:linear-gradient(145deg,#1D6F42,#185a34);}
.drop-ic.sm{width:38px;height:38px;border-radius:9px;font-size:9.5px;flex-shrink:0;}
.drop-t{font-family:'DM Serif Display',Georgia,serif;font-size:17px;color:var(--navy);}
.drop-s{font-size:11.5px;color:var(--muted);line-height:1.5;max-width:340px;}
.drop-status{margin-top:4px;font-size:11px;font-weight:700;color:var(--muted);background:#fff;border:1px solid var(--border);border-radius:999px;padding:3px 11px;}
.drop.done .drop-status{color:var(--green);border-color:var(--green-border);}
.alt-load{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:14px;font-size:11.5px;color:var(--muted);border-top:1px dashed var(--border);padding-top:14px;}
.err{margin-top:12px;background:var(--red-bg);border:1px solid var(--red-border);color:var(--red);border-radius:8px;padding:10px 14px;font-size:12px;}

/* sources bar */
.sources{padding:16px 32px 14px;background:var(--light);border-bottom:1px solid var(--mid);}
.src-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;}
.src-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.src{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--border);border-left:4px solid var(--green);border-radius:9px;padding:10px 12px;}
.src-switch{border-left-color:var(--border);}
.src-txt{flex:1;min-width:0;}
.src-txt b{display:block;font-size:12.5px;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.src-txt span{font-size:11px;color:var(--muted);line-height:1.45;}
.src-note{font-size:11px;color:var(--muted);margin-top:8px;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:8px;padding:11px 22px;font-size:13px;font-weight:700;cursor:pointer;border:1px solid transparent;text-decoration:none;white-space:nowrap;}
.btn.gold{background:var(--accent);color:var(--navy);}
.btn.gold:hover{background:#b98a2f;}
.btn.navy{background:var(--navy);color:#fff;}
.btn.navy:hover{background:var(--brand);}
.btn.line{background:#fff;color:var(--brand);border-color:var(--blue-border);}
.btn.line:hover{background:var(--blue-bg);}
.btn.ghost{background:transparent;color:var(--muted);border-color:var(--border);}
.btn.ghost:hover{color:var(--red);border-color:var(--red-border);}
.btn.sm{padding:6px 12px;font-size:11.5px;}
.btn:disabled{opacity:.6;cursor:wait;}

/* tools */
.tools{position:relative;padding:22px 32px 30px;}
.tools.locked .tabs,.tools.locked .pane{opacity:.35;pointer-events:none;filter:grayscale(.4);}
.lock-msg{display:none;}
.tools.locked .lock-msg{display:block;position:absolute;top:70px;left:50%;transform:translateX(-50%);z-index:3;background:var(--navy);color:#fff;font-size:12.5px;font-weight:600;padding:12px 20px;border-radius:10px;box-shadow:0 8px 24px rgba(13,27,53,.3);text-align:center;max-width:90%;}
.tabs{display:flex;gap:6px;border-bottom:2px solid var(--mid);margin-bottom:18px;}
.tab{background:none;border:none;padding:10px 16px;font-size:13px;font-weight:700;color:var(--muted);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;}
.tab.on{color:var(--navy);border-bottom-color:var(--accent);}

/* search */
.search{display:flex;gap:14px;align-items:flex-end;background:var(--light);border:1px solid var(--mid);border-radius:12px;padding:16px 18px;margin-bottom:18px;}
.f label,.f-lbl{display:block;font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-bottom:5px;}
.f-q{flex:1;}
.seg{display:inline-flex;background:#fff;border:1.5px solid var(--brand);border-radius:8px;overflow:hidden;}
.seg button{border:none;background:#fff;color:var(--brand);font-size:12.5px;font-weight:700;padding:10px 14px;cursor:pointer;}
.seg button.on{background:var(--brand);color:#fff;}
.in{width:100%;background:#fff;border:1.5px solid var(--brand);border-radius:8px;padding:9px 12px;font-size:15px;color:var(--navy);font-weight:600;font-family:inherit;}
.in.big{font-size:18px;letter-spacing:1px;}
.in:focus{outline:none;box-shadow:0 0 0 3px rgba(200,153,58,.35);border-color:var(--accent);}

/* result */
.nores{background:var(--amber-bg);border:1px solid var(--amber-border);color:#8a4518;border-radius:10px;padding:14px 16px;font-size:12.5px;line-height:1.6;}
.res-head{display:flex;justify-content:space-between;align-items:center;gap:16px;border:1px solid var(--border);border-left:4px solid var(--green);border-radius:9px;padding:14px 18px;}
.res-name{font-family:'DM Serif Display',Georgia,serif;font-size:20px;color:var(--navy);}
.res-sub{font-size:11.5px;color:var(--muted);margin-top:2px;}
.tag{background:var(--blue-bg);border:1px solid var(--blue-border);color:var(--blue);border-radius:999px;padding:1px 7px;font-size:10px;font-weight:700;}
.res-kv{display:flex;gap:22px;flex-wrap:wrap;}
.res-kv small{display:block;font-size:9px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);font-weight:700;}
.res-kv b{font-size:13px;color:var(--text);}
.res-actions{display:flex;gap:10px;justify-content:flex-end;margin:12px 0 4px;}
.res-cols{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;margin-top:10px;}
.res-h{font-size:10px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--brand);margin-bottom:6px;}
.row{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--mid);padding:7px 0;font-size:12px;}
.row .lbl{width:112px;color:var(--muted);flex-shrink:0;}
.row .yr{width:38px;color:var(--muted);font-weight:700;flex-shrink:0;}
.row code{flex:1;font-family:Consolas,'SF Mono',Menlo,monospace;font-size:13px;color:var(--navy);word-break:break-all;}
.row code i{font-family:'DM Sans',sans-serif;font-style:normal;color:#A0AEC0;font-size:11.5px;}
.cp{font-size:10px;font-weight:700;color:var(--blue);border:1px solid var(--blue-border);border-radius:5px;padding:3px 9px;background:var(--blue-bg);cursor:pointer;flex-shrink:0;}
.cp:hover{background:var(--blue);color:#fff;}
.sn-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:18px;}
.ok-note{font-size:11px;color:var(--green);background:var(--green-bg);border-radius:7px;padding:8px 11px;margin-top:12px;line-height:1.5;}
.muted{font-size:12px;color:var(--muted);}

/* converter */
.conv-intro p{font-size:12.5px;color:var(--muted);line-height:1.6;max-width:860px;}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));gap:10px;margin:18px 0 14px;}
.stat{background:var(--light);border:1px solid var(--border);border-radius:9px;padding:12px 14px;}
.stat b{display:block;font-family:'DM Serif Display',Georgia,serif;font-weight:400;font-size:22px;color:var(--brand);line-height:1.1;}
.stat span{font-size:10px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);font-weight:700;}
.stat.g b{color:var(--green);} .stat.a b{color:var(--amber);}
.chk{display:flex;gap:8px;align-items:center;font-size:12px;color:var(--text);margin-bottom:14px;cursor:pointer;}
.conv-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.conv-name{font-size:11.5px;color:var(--muted);font-family:Consolas,monospace;}
.notes{margin-top:18px;background:var(--light);border:1px solid var(--border);border-radius:8px;padding:12px 16px;font-size:11.5px;color:var(--muted);line-height:1.65;}
.notes code,.desc code{background:#fff;border:1px solid var(--border);border-radius:4px;padding:0 4px;font-size:11px;color:var(--brand);}

.foot .ver{color:var(--accent);font-weight:600;}
.recent{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:-8px 0 16px;}
.recent span{font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-right:4px;}
.chip{background:#fff;border:1px solid var(--border);border-radius:999px;padding:4px 11px;font-size:11.5px;font-weight:600;color:var(--brand);cursor:pointer;}
.chip:hover{border-color:var(--accent);background:#FBF5E8;}
.btn.navy.done{background:var(--green);}
.foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;background:var(--navy);color:rgba(255,255,255,.55);font-size:11px;padding:14px 32px;}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--navy);color:#fff;font-size:12.5px;font-weight:600;padding:10px 18px;border-radius:999px;box-shadow:0 8px 24px rgba(13,27,53,.3);opacity:0;pointer-events:none;transition:all .2s;}
.toast.show{opacity:1;transform:translate(-50%,0);}

@media (max-width:820px){
  .app{margin:0;border-radius:0;}
  .top,.privacy,.panel,.sources,.tools,.foot{padding-left:16px;padding-right:16px;}
  .top{flex-direction:column;align-items:flex-start;}
  .drops,.src-grid,.res-cols,.sn-grid{grid-template-columns:1fr;}
  .search{flex-direction:column;align-items:stretch;}
  .res-head{flex-direction:column;align-items:flex-start;}
  .res-actions{justify-content:flex-start;flex-wrap:wrap;}
  .sp,.alt-load{flex-direction:column;align-items:flex-start;}
  .src{flex-wrap:wrap;}
}

/* QA v1.2 polish */
.res-actions{margin:12px 0 10px;}
.tools.locked .lock-msg{top:64px;}
.ok-note{margin-top:14px;}
.src-txt span{display:block;}
@media (max-width:820px){
  .tabs{gap:0;}
  .tab{flex:1;font-size:12.5px;padding:10px 8px;}
  .res-actions .btn{flex:1;}
  .res-kv{gap:16px;}
}
.stats{grid-template-columns:repeat(4,1fr);}
.stat b{font-size:24px;}
@media (max-width:820px){.stats{grid-template-columns:repeat(2,1fr);}}
.ca-badge{display:inline-flex;align-items:center;gap:6px;vertical-align:middle;margin-right:10px;background:#FDECEA;border:1px solid #F3B6B0;color:#B3261E;font-family:'DM Sans',sans-serif;font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;border-radius:999px;padding:3px 10px 3px 5px;}
.ca-flag{display:block;border-radius:2px;box-shadow:0 0 0 1px rgba(0,0,0,.12);}
.linkbtn{background:none;border:none;padding:0;margin-left:4px;color:var(--brand);font-weight:700;text-decoration:underline;cursor:pointer;font-size:inherit;}
.seg button{padding:10px 12px;}