:root{
    --ink:#101826;
    --ink-soft:#4A5568;
    --bg:#F3F5F8;
    --card:#FFFFFF;
    --border:#DCE1E8;
    --border-soft:#EAEDF2;
    --amber:#B9711F;
    --amber-bg:#FBEDDC;
    --amber-line:#E7C08B;
    --green:#276148;
    --green-bg:#E4F1EA;
    --green-line:#A9D2BE;
    --red:#A5342A;
    --red-bg:#FBE7E4;
    --red-line:#E7AFA6;
    --slate:#5B6577;
    --slate-bg:#EEF0F4;
    --navy:#152238;
    --navy-2:#1E3255;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:'IBM Plex Sans',-apple-system,Segoe UI,Roboto,sans-serif;
    -webkit-font-smoothing:antialiased;
  }
  .mono{font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,monospace;}

  /* ---------- top bar ---------- */
  .topbar{
    background:var(--navy);
    background-image:linear-gradient(115deg, var(--navy) 0%, var(--navy-2) 100%);
    color:#EEF1F6;
    padding:26px 28px 22px;
  }
  .topbar-inner{max-width:1180px;margin:0 auto;}
  .topbar-label{
    font-size:12.5px;
    letter-spacing:.02em;
    color:#9FB0C8;
    margin:0 0 4px;
  }
  .topbar h1{
    margin:0;
    font-size:23px;
    font-weight:600;
    letter-spacing:-0.01em;
  }
  .topbar-sub{
    margin:6px 0 0;
    font-size:13.5px;
    color:#B7C2D4;
    max-width:640px;
    line-height:1.5;
  }

  /* ---------- search hero ---------- */
  .search-zone{
    background:var(--navy-2);
    padding:0 28px 26px;
  }
  .search-zone-inner{max-width:1180px;margin:0 auto;position:relative;}
  .search-box{
    position:relative;
    display:flex;
    align-items:center;
    background:#fff;
    border-radius:8px;
    box-shadow:0 10px 26px rgba(9,16,32,.28);
    overflow:visible;
  }
  .search-box svg{flex:none;margin-left:16px;color:#8B93A3;}
  #searchInput{
    flex:1;
    border:none;
    outline:none;
    background:transparent;
    padding:15px 12px;
    font-family:'IBM Plex Mono',monospace;
    font-size:15px;
    color:var(--ink);
    letter-spacing:.01em;
  }
  #searchInput::placeholder{
    font-family:'IBM Plex Sans',sans-serif;
    color:#97A0B0;
  }
  .search-clear{
    background:none;border:none;color:#9AA3B2;cursor:pointer;
    padding:8px 14px;font-size:13px;display:none;
  }
  .search-clear.show{display:block;}
  .suggest-list{
    position:absolute;
    top:calc(100% + 6px);
    left:0;right:0;
    background:#fff;
    border-radius:8px;
    box-shadow:0 14px 30px rgba(9,16,32,.22);
    border:1px solid var(--border-soft);
    max-height:320px;
    overflow-y:auto;
    z-index:40;
    display:none;
  }
  .suggest-list.show{display:block;}
  .suggest-item{
    padding:10px 16px;
    cursor:pointer;
    border-bottom:1px solid var(--border-soft);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
  }
  .suggest-item:last-child{border-bottom:none;}
  .suggest-item:hover, .suggest-item.active{background:#F3F5F8;}
  .suggest-req{font-family:'IBM Plex Mono',monospace;font-size:13.5px;color:var(--ink);}
  .suggest-meta{font-size:12px;color:var(--ink-soft);text-align:right;flex:none;}
  .suggest-empty{padding:16px;font-size:13px;color:var(--ink-soft);}

  /* ---------- data source / upload bar ---------- */
  .ds-bar{
    margin-top:12px;
    display:flex;
    align-items:center;
    gap:14px;
    flex-wrap:wrap;
  }
  .ds-info{
    font-size:12.5px;
    color:#C3CCDC;
  }
  .ds-info strong{color:#EEF1F6;font-weight:600;}
  .upload-btn{
    display:inline-flex;align-items:center;gap:7px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.28);
    color:#EEF1F6;
    padding:7px 13px;
    border-radius:6px;
    font-size:12.5px;
    font-weight:500;
    cursor:pointer;
    transition:background .15s;
  }
  .upload-btn:hover{background:rgba(255,255,255,.16);}
  #fileUpload{display:none;}
  .ghost-btn{
    background:none;
    border:1px solid rgba(255,255,255,.22);
    color:#B7C2D4;
    font-family:'IBM Plex Sans',sans-serif;
    font-size:12px;
    padding:6px 11px;
    border-radius:6px;
    cursor:pointer;
  }
  .ghost-btn:hover{color:#EEF1F6;border-color:rgba(255,255,255,.4);}
  .storage-pill{
    font-size:11px;
    font-weight:600;
    letter-spacing:.02em;
    padding:4px 9px;
    border-radius:20px;
    background:rgba(255,255,255,.08);
    color:#B7C2D4;
    border:1px solid rgba(255,255,255,.18);
  }
  .storage-pill.on{color:#8FE0B8;border-color:rgba(143,224,184,.35);background:rgba(143,224,184,.1);}
  .storage-pill.off{color:#F2B980;border-color:rgba(242,185,128,.35);background:rgba(242,185,128,.1);}
  .ds-note{
    margin-top:10px;
    max-width:680px;
    font-size:12px;
    line-height:1.6;
    color:#C3CCDC;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.12);
    border-radius:6px;
    padding:10px 13px;
  }
  .ds-note a, .ds-note strong{color:#EEF1F6;}

  /* ---------- restore -> upload workflow row ---------- */
  .ds-bar2{
    display:flex;gap:10px;margin-top:10px;
  }
  .workflow-row{
    display:flex;align-items:flex-start;gap:14px;
    margin-top:16px;
    flex-wrap:wrap;
  }
  .wf-step{display:flex;gap:10px;align-items:flex-start;}
  .wf-num{
    flex:none;
    width:20px;height:20px;border-radius:50%;
    background:rgba(255,255,255,.12);
    color:#EEF1F6;
    font-size:11px;font-weight:700;
    display:flex;align-items:center;justify-content:center;
    margin-top:2px;
  }
  .wf-arrow{color:#8B96AC;font-size:16px;padding-top:8px;}
  .wf-hint{font-size:11px;color:#93A1BC;margin-top:5px;max-width:220px;line-height:1.5;}
  .upload-btn.secondary{background:rgba(255,255,255,.03);border-style:dashed;}
  #restoreInput{display:none;}
  @media (max-width:700px){
    .workflow-row{flex-direction:column;}
    .wf-arrow{display:none;}
  }

  /* per-requisition freshness note + missing-from-latest tag */
  .freshness{
    padding:8px 24px 0;
    font-size:11.5px;
    color:var(--ink-soft);
  }
  .not-latest{color:var(--amber);font-weight:600;}

  /* upload log, shown under the search/upload bar */
  #uploadLogWrap{margin-top:12px;}
  .ul-title{font-size:11.5px;color:#93A1BC;margin-bottom:6px;}
  .ul-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px;max-width:640px;}
  .ul-list li{
    display:flex;gap:10px;align-items:baseline;
    font-size:11.5px;color:#C3CCDC;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.1);
    border-radius:6px;
    padding:6px 10px;
  }
  .ul-list .ul-file{font-family:'IBM Plex Mono',monospace;font-weight:600;color:#EEF1F6;}
  .ul-list .ul-stamp{color:#8B96AC;white-space:nowrap;}
  .ul-list .ul-count{margin-left:auto;color:#8B96AC;white-space:nowrap;}
  .ds-error{
    margin-top:10px;
    display:none;
    background:var(--red-bg);
    color:var(--red);
    border:1px solid var(--red-line);
    padding:10px 14px;
    border-radius:6px;
    font-size:12.5px;
    max-width:640px;
  }
  .ds-error.show{display:block;}
  .ds-loading{opacity:.6;pointer-events:none;}

  /* ---------- layout ---------- */
  .wrap{max-width:1180px;margin:0 auto;padding:26px 28px 60px;}

  /* ---------- stat strip ---------- */
  .stats{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    gap:12px;
    margin-bottom:28px;
  }
  .stat-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:8px;
    padding:14px 16px;
    cursor:pointer;
    transition:border-color .15s;
  }
  .stat-card:hover{border-color:#B7C2D4;}
  .stat-card.active{border-color:var(--navy-2); box-shadow:0 0 0 1px var(--navy-2) inset;}
  .stat-num{font-size:24px;font-weight:600;letter-spacing:-.01em;}
  .stat-label{font-size:12px;color:var(--ink-soft);margin-top:3px;line-height:1.35;}
  .stat-card[data-k="prPending"] .stat-num{color:var(--amber);}
  .stat-card[data-k="poPending"] .stat-num{color:var(--amber);}
  .stat-card[data-k="poNotRaised"] .stat-num{color:var(--slate);}
  .stat-card[data-k="done"] .stat-num{color:var(--green);}

  /* ---------- section headers ---------- */
  .section-head{
    display:flex;align-items:baseline;justify-content:space-between;
    margin:8px 0 12px;
  }
  .section-head h2{font-size:15px;margin:0;font-weight:600;}
  .section-head .hint{font-size:12.5px;color:var(--ink-soft);}

  /* ---------- empty / intro state ---------- */
  .intro{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:10px;
    padding:36px 32px;
    text-align:center;
    color:var(--ink-soft);
    font-size:13.5px;
    line-height:1.7;
    margin-bottom:28px;
  }
  .intro strong{color:var(--ink);}

  /* ---------- detail card ---------- */
  .detail{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:10px;
    margin-bottom:28px;
    overflow:hidden;
  }
  .detail-head{
    padding:20px 24px;
    border-bottom:1px solid var(--border-soft);
    display:flex;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
  }
  .detail-req{font-family:'IBM Plex Mono',monospace;font-size:18px;font-weight:600;}
  .detail-proj{font-size:13px;color:var(--ink-soft);margin-top:4px;}
  .detail-meta{
    display:grid;
    grid-template-columns:repeat(4,auto);
    gap:20px 28px;
    font-size:12.5px;
  }
  .detail-meta div span{display:block;}
  .meta-label{color:var(--ink-soft);margin-bottom:3px;}
  .meta-val{font-weight:500;}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:20px;
    font-size:12px;font-weight:600;letter-spacing:.01em;
    white-space:nowrap;
  }
  .badge-dot{width:6px;height:6px;border-radius:50%;}
  .badge.amber{background:var(--amber-bg);color:var(--amber);border:1px solid var(--amber-line);}
  .badge.green{background:var(--green-bg);color:var(--green);border:1px solid var(--green-line);}
  .badge.red{background:var(--red-bg);color:var(--red);border:1px solid var(--red-line);}
  .badge.slate{background:var(--slate-bg);color:var(--slate);border:1px solid var(--border);}

  /* ---------- pipeline ---------- */
  .pipeline{
    display:flex;
    padding:22px 24px 6px;
    gap:0;
    overflow-x:auto;
  }
  .pstep{
    flex:1;
    min-width:150px;
    position:relative;
    padding:0 14px 22px 0;
  }
  .pstep .line{
    position:absolute;top:9px;left:0;right:-14px;height:2px;background:var(--border);
  }
  .pstep:last-child .line{display:none;}
  .pstep.done .line{background:var(--green-line);}
  .pstep.stuck .line{background:var(--border);}
  .pdot{
    width:20px;height:20px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:#fff;border:2px solid var(--border);
    z-index:2;position:relative;
    font-size:11px;color:var(--ink-soft);
  }
  .pstep.done .pdot{border-color:var(--green);background:var(--green);color:#fff;}
  .pstep.stuck .pdot{border-color:var(--amber);background:var(--amber);color:#fff;}
  .pstep.blocked .pdot{border-color:var(--red);background:var(--red);color:#fff;}
  .pstep.pending .pdot{border-color:var(--border);background:#fff;color:var(--ink-soft);}
  .ptitle{font-size:12.5px;font-weight:600;margin-top:8px;}
  .psub{font-size:11.5px;color:var(--ink-soft);margin-top:2px;line-height:1.4;}

  /* ---------- reason callout ---------- */
  .callout{
    margin:6px 24px 22px;
    border-radius:8px;
    padding:14px 16px;
    display:flex;
    gap:12px;
    align-items:flex-start;
    font-size:13px;
    line-height:1.55;
  }
  .callout.amber{background:var(--amber-bg);border:1px solid var(--amber-line);color:#7A4B14;}
  .callout.green{background:var(--green-bg);border:1px solid var(--green-line);color:#1C4A36;}
  .callout.red{background:var(--red-bg);border:1px solid var(--red-line);color:#7A2A22;}
  .callout b{font-weight:600;}
  .callout .who{
    display:inline-block;margin-top:4px;
    font-family:'IBM Plex Mono',monospace;font-size:12.5px;
    background:rgba(255,255,255,.55);
    padding:2px 8px;border-radius:4px;
  }

  /* ---------- lines table ---------- */
  .lines-wrap{padding:0 24px 24px;}
  table{width:100%;border-collapse:collapse;font-size:12.5px;}
  thead th{
    text-align:left;
    font-weight:600;
    color:var(--ink-soft);
    font-size:11px;
    letter-spacing:.02em;
    padding:8px 10px;
    border-bottom:1px solid var(--border);
    white-space:nowrap;
  }
  tbody td{
    padding:10px 10px;
    border-bottom:1px solid var(--border-soft);
    vertical-align:top;
  }
  tbody tr:hover{background:#FAFBFC;}
  .item-name{font-weight:500;}
  .item-desc{color:var(--ink-soft);font-size:11.5px;margin-top:2px;}
  .num{font-family:'IBM Plex Mono',monospace;}
  .amt{text-align:right;font-family:'IBM Plex Mono',monospace;white-space:nowrap;}

  /* ---------- browse table ---------- */
  .browse{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:10px;
    overflow:hidden;
  }
  .filters{
    display:flex;gap:8px;flex-wrap:wrap;
    padding:14px 18px;
    border-bottom:1px solid var(--border-soft);
    background:#FAFBFC;
  }
  .filters select, .filters input{
    font-family:'IBM Plex Sans',sans-serif;
    font-size:12.5px;
    padding:7px 10px;
    border:1px solid var(--border);
    border-radius:6px;
    background:#fff;
    color:var(--ink);
  }
  .browse-table-scroll{max-height:560px;overflow:auto;}
  .browse table thead th{position:sticky;top:0;background:#fff;z-index:1;}
  .browse tbody tr{cursor:pointer;}
  .row-req{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:12.5px;}
  .row-count{font-size:11px;color:var(--ink-soft);}

  footer{
    text-align:center;
    font-size:11.5px;
    color:#9AA3B2;
    padding:30px 20px 10px;
  }

  @media (max-width:900px){
    .stats{grid-template-columns:repeat(2,1fr);}
    .detail-meta{grid-template-columns:repeat(2,auto);}
    .pipeline{flex-direction:column;gap:14px;}
    .pstep .line{display:none;}
  }

  /* ---------- upload loader overlay ---------- */
  .upload-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: loaderFadeIn 0.2s ease-out;
  }
  .loader-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(16, 24, 38, 0.65);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
  }
  .loader-card {
    position: relative;
    z-index: 2;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 24px 48px rgba(9, 16, 32, 0.28), 0 0 0 1px rgba(0, 0, 0, 0.06);
    padding: 32px 36px;
    width: 90%;
    max-width: 440px;
    text-align: center;
    animation: loaderCardPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .loader-spinner-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 18px;
  }
  .loader-spinner {
    width: 46px;
    height: 46px;
    border: 4px solid var(--border-soft);
    border-top-color: var(--navy-2);
    border-right-color: #3b82f6;
    border-radius: 50%;
    animation: loaderSpin 0.75s linear infinite;
  }
  .loader-title {
    margin: 0 0 6px;
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
  }
  .loader-subtitle {
    margin: 0 0 18px;
    font-size: 13px;
    color: var(--ink-soft);
    line-height: 1.4;
  }
  .loader-progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-soft);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
    margin-bottom: 14px;
  }
  .loader-progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 35%;
    background: linear-gradient(90deg, var(--navy-2), #3b82f6);
    border-radius: 3px;
    transition: width 0.3s ease;
    animation: loaderShimmer 1.6s infinite ease-in-out;
  }
  .loader-step {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11.5px;
    color: var(--navy-2);
    background: var(--slate-bg);
    padding: 6px 12px;
    border-radius: 6px;
    display: inline-block;
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  @keyframes loaderSpin {
    to { transform: rotate(360deg); }
  }
  @keyframes loaderFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  @keyframes loaderCardPop {
    from { opacity: 0; transform: scale(0.92) translateY(8px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
  }
  @keyframes loaderShimmer {
    0% { transform: translateX(-100%); width: 40%; }
    50% { width: 70%; }
    100% { transform: translateX(250%); width: 40%; }
  }