:root{
  --brand:#721FE5;
  --brand-tint:#F0E8FF;
  --primary:#030213;
  --background:#ffffff;
  --surface-page:#FAFAFA;
  --surface-subtle:#FAFAF9;
  --surface-muted:#E8E6E1;
  --card:#ffffff;
  --text-primary:#3C3C3C;
  --text-secondary:#6A6A6A;
  --text-tertiary:#7A7A7A;
  --text-disabled:#9B9B9B;
  --border:rgba(0,0,0,0.1);
  --input-bg:#f3f3f5;
  --destructive:#d4183d;
  --success:#6B9B7A;
  --warning:#D97706;
  --info:#3B82F6;
  --shadow-card:0 1px 3px rgba(0,0,0,0.04);
  --shadow-elevated:0 4px 12px rgba(0,0,0,0.08);
  --shadow-modal:0 8px 24px rgba(0,0,0,0.12);
  --radius:10px;
  --radius-lg:14px;
  --radius-xl:16px;
  --ease:cubic-bezier(0.4,0,0.2,1);
}
@keyframes cache-blink{0%,100%{opacity:1}50%{opacity:.3}}
.cache-progress{animation:cache-blink 1.2s ease-in-out infinite}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,'Apple SD Gothic Neo','Pretendard','Malgun Gothic',sans-serif;background:var(--surface-page);color:var(--text-primary);min-height:100vh;padding:0}

/* ─── Top Bar ─── */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.topbar-left{display:flex;align-items:center;gap:12px}
.logo{width:40px;height:40px;background:var(--brand);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;font-weight:700;flex-shrink:0}
.topbar-title{font-size:20px;font-weight:700;color:var(--text-primary);line-height:1.3}
.topbar-sub{font-size:13px;color:var(--text-tertiary);font-weight:500;letter-spacing:0.05em;text-transform:uppercase;margin-top:1px}
.topbar-right{display:flex;gap:8px;align-items:center}
.api-badge{font-size:12px;padding:4px 10px;border-radius:20px;font-weight:600;letter-spacing:0.02em}
.api-on{background:rgba(107,155,122,0.12);color:var(--success)}
.api-off{background:rgba(212,24,61,0.08);color:var(--destructive)}
.btn{padding:8px 16px;border-radius:var(--radius);border:1px solid var(--border);cursor:pointer;font-size:14px;font-family:inherit;font-weight:600;transition:all .2s var(--ease);background:var(--card);color:var(--text-secondary)}
.btn:hover{background:var(--surface-page);color:var(--text-primary)}
.btn:active{transform:scale(0.97)}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:#5c18b8;border-color:#5c18b8}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text-secondary)}

/* ─── Main Grid ─── */
.main-grid{display:grid;grid-template-columns:300px minmax(200px,1fr) minmax(600px,2fr);gap:0;height:calc(100vh - 73px)}
@media(max-width:1100px){.main-grid{grid-template-columns:1fr;height:auto}}

/* ─── Card / Panel ─── */
.panel{background:var(--card);display:flex;flex-direction:column;overflow:hidden;border-right:1px solid var(--border)}
.panel:last-child{border-right:none}
.panel-header{padding:20px 24px 16px;flex-shrink:0}
.panel-header h2{font-size:14px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.05em;display:flex;align-items:center;gap:8px}
.panel-header h2 .count{font-size:14px;color:var(--text-disabled);font-weight:500;text-transform:none;letter-spacing:0}
.panel-body{flex:1;overflow-y:auto;padding:0 24px 24px}
.panel:first-child>.panel-body{display:flex;flex-direction:column;min-height:0}
.company-section{flex:1 1 auto;min-height:200px;display:flex;flex-direction:column}
#companyResults{flex:1;min-height:0;overflow-y:auto;margin-top:4px}
.panel-body::-webkit-scrollbar{width:4px}
.panel-body::-webkit-scrollbar-thumb{background:var(--surface-muted);border-radius:4px}
.panel-body::-webkit-scrollbar-track{background:transparent}
#resultBody::-webkit-scrollbar{width:8px}
#resultBody::-webkit-scrollbar-thumb{background:var(--surface-muted);border-radius:8px}
#resultBody{scrollbar-width:auto}

/* ─── Keywords ─── */
.kw-input-row{display:flex;gap:8px;margin-bottom:16px}
.kw-input{flex:1;background:var(--input-bg);border:1px solid transparent;border-radius:var(--radius);padding:10px 14px;color:var(--text-primary);font-size:15px;font-family:inherit;outline:none;transition:border .2s var(--ease)}
.kw-input:focus{border-color:var(--brand);background:var(--card)}
.kw-input::placeholder{color:var(--text-disabled)}
/* 키워드는 내용 길이에 맞는 칩으로 가로 정렬, 공간 부족하면 다음 줄로 감싸기 (1.5×의 80%) */
.kw-list{display:flex;flex-wrap:wrap;gap:7px;align-items:flex-start}
.kw-list .kw-empty{flex:1 0 100%}
.kw-item{display:inline-flex;align-items:center;gap:5px;background:var(--surface-page);border:1px solid transparent;border-radius:999px;padding:5px 7px 5px 14px;max-width:100%;transition:background .15s var(--ease),border-color .15s var(--ease)}
.kw-item:hover{background:var(--brand-tint);border-color:rgba(114,31,229,0.15)}
.kw-text{font-size:16px;color:var(--text-primary);font-weight:500;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:240px}
.kw-actions{display:inline-flex;align-items:center;gap:0;flex-shrink:0}
.kw-btn{background:none;border:none;cursor:pointer;font-size:14px;padding:2px 5px;border-radius:5px;color:var(--text-disabled);line-height:1;transition:all .15s var(--ease)}
.kw-btn:hover{background:var(--surface-muted);color:var(--text-primary)}
.kw-btn-del:hover{color:var(--destructive)}
.kw-empty{text-align:center;padding:32px 12px;color:var(--text-disabled);font-size:14px;line-height:1.7}

/* ─── Category Tabs (Pill Toggle) ─── */
.category-tabs{display:flex;gap:4px;background:var(--input-bg);border-radius:var(--radius);padding:3px;margin-top:12px}
.ctab{flex:1;padding:6px 0;border-radius:8px;font-size:14px;cursor:pointer;border:none;background:transparent;color:var(--text-disabled);font-family:inherit;font-weight:600;transition:all .2s var(--ease);text-align:center}
.ctab.active{background:var(--brand);color:#fff;box-shadow:var(--shadow-card)}
.ctab:hover:not(.active){color:var(--text-secondary)}
.ctab-sep{width:2px;background:var(--text-disabled);margin:4px 6px;flex:0 0 2px;border-radius:1px}
.ctab-kwater{flex:1.3}
.ctab-kepco{flex:1.1}
.category-subtabs{display:flex;gap:4px;background:var(--input-bg);border-radius:var(--radius);padding:3px;margin-top:6px}
.ctab-sub{flex:1;padding:5px 0;border-radius:8px;font-size:13px;cursor:pointer;border:none;background:transparent;color:var(--text-disabled);font-family:inherit;font-weight:600;transition:all .2s var(--ease);text-align:center}
.ctab-sub.active{background:var(--card);color:var(--text-primary);box-shadow:var(--shadow-card)}
.ctab-sub:hover:not(.active){color:var(--text-secondary)}
.b-kwater{background:rgba(30,100,200,0.12);color:#1e64c8}
.b-kepco{background:rgba(234,88,12,0.12);color:#c2410c}

/* ─── Result List ─── */
.result-list{display:flex;flex-direction:column;gap:2px}
.result-item{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:var(--radius-lg);cursor:pointer;transition:all .15s var(--ease);border:1px solid transparent}
.result-item:hover{background:var(--surface-page)}
.result-item.active{background:var(--brand-tint);border-color:rgba(114,31,229,0.15)}
.company-result-item:hover{background:var(--surface-page)}
.company-result-item.active{background:var(--brand-tint);border-left:3px solid var(--brand);padding-left:5px !important}
.company-result-item.active>div:first-child{color:var(--brand)}
.company-result-item.rank-first{color:var(--info)}
.company-result-item.rank-first *{color:inherit !important}
.company-result-item.rank-first.active{color:var(--brand)}
.result-stage{flex:0 0 auto;font-size:14px;font-weight:800;padding:8px 10px;border-radius:8px;text-align:center;line-height:1.3;display:flex;align-items:center;justify-content:center;min-height:44px;white-space:pre-line}
.stg-active{background:rgba(59,130,246,0.1);color:var(--info)}
.stg-closed{background:rgba(0,0,0,0.06);color:var(--text-disabled)}
.stg-result{background:rgba(107,155,122,0.12);color:var(--success)}
.stg-contract{background:rgba(16,185,129,0.1);color:#059669}
.stg-demand{background:rgba(217,119,6,0.1);color:var(--warning)}
.stg-dlvreq{background:rgba(234,88,12,0.1);color:#c2410c}
.stg-inspect{background:rgba(139,92,246,0.1);color:#7c3aed}
.stg-urgent{background:rgba(212,24,61,0.1);color:var(--destructive)}
.stg-stndrd{background:rgba(147,51,234,0.1);color:#7c3aed}
.stg-ordg{background:rgba(234,179,8,0.12);color:#b45309}
.result-content{flex:1;min-width:0}
.result-title{font-size:15px;color:var(--text-primary);font-weight:600;margin-bottom:6px;line-height:1.5}
.result-item.active .result-title{color:var(--brand)}
.result-meta{font-size:12px;color:var(--text-tertiary);display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ─── Badges ─── */
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:20px;font-size:12px;font-weight:600;letter-spacing:0.02em}
.b-servc{background:rgba(59,130,246,0.1);color:var(--info)}
.b-goods{background:rgba(107,155,122,0.1);color:var(--success)}
.b-cnstwk{background:rgba(217,119,6,0.1);color:var(--warning)}
.b-d2b{background:rgba(75,85,99,0.1);color:#4B5563}
.b-closed{background:rgba(0,0,0,0.06);color:var(--text-disabled)}
.b-urgent{background:rgba(212,24,61,0.08);color:var(--destructive)}
.dot{width:6px;height:6px;border-radius:50%;display:inline-block;margin-right:4px;flex-shrink:0}
.dot-urgent{background:var(--destructive)}

/* ─── Status Messages ─── */
.loading{text-align:center;padding:48px 16px;color:var(--text-disabled);font-size:14px;line-height:1.8}
.loading-spinner{width:28px;height:28px;border:2.5px solid var(--surface-muted);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite;margin:0 auto 12px}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{text-align:center;padding:48px 16px;color:var(--text-disabled);font-size:14px;line-height:1.7}
.error-msg{color:var(--destructive);font-size:14px;padding:14px 16px;background:rgba(212,24,61,0.06);border-radius:var(--radius);line-height:1.5}

/* ─── Inline Detail (Mobile) ─── */
.inline-detail{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px 20px 16px;margin:4px 0}
@media(max-width:1100px){#detailPanel{display:none}}

/* ─── Detail Panel ─── */
.detail-empty{text-align:center;padding:64px 16px;color:var(--text-disabled);font-size:14px;line-height:1.7}
.detail-section{margin-bottom:20px}
.detail-section h3{font-size:13px;font-weight:600;color:var(--text-disabled);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.detail-row{display:flex;gap:8px;margin-bottom:8px;font-size:14px;line-height:1.5}
.detail-label{color:var(--text-tertiary);flex-shrink:0;font-size:13px;font-weight:500;white-space:nowrap;min-width:100px}
.detail-value{color:var(--text-primary);flex:1;min-width:0;font-weight:500}
.detail-title-text{font-size:20px;font-weight:700;color:var(--text-primary);line-height:1.5;margin-bottom:12px}
.kw-tbl{width:100%;border-collapse:collapse;font-size:13px;line-height:1.5}
.kw-tbl td{padding:3px 0;vertical-align:top}
.kw-grid{width:100%;border-collapse:collapse;font-size:12.5px;line-height:1.5;table-layout:fixed}
.kw-grid td{padding:3px 0;vertical-align:top}
.kw-td-label{color:var(--text-tertiary);font-weight:500;white-space:nowrap;padding-right:8px;width:90px}
.kw-td-value{color:var(--text-primary);font-weight:500;overflow:hidden;text-overflow:ellipsis}
.detail-money{font-size:22px;font-weight:700;color:var(--text-primary)}
.detail-money-unit{font-size:14px;font-weight:500;color:var(--text-secondary);margin-left:2px}
.detail-link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:10px 20px;background:var(--brand);color:#fff;border-radius:var(--radius);font-size:14px;font-weight:600;text-decoration:none;transition:all .15s var(--ease)}
.detail-link:hover{background:#5c18b8}
.detail-link:active{transform:scale(0.97)}
.detail-link svg{width:14px;height:14px}

/* ─── Detail Split & File Viewer ─── */
.detail-split{display:flex;flex-direction:column;flex:1;overflow:hidden}
.detail-split>.panel-body{flex:1;overflow-y:auto;transition:flex .25s ease}
.detail-split.viewer-open>.panel-body{flex:0 0 0;overflow:hidden}
.file-viewer{display:none;flex-direction:column;border-top:1px solid var(--border);min-height:0}
.detail-split.viewer-open .file-viewer{display:flex;flex:1}
.file-viewer-header{display:flex;align-items:center;justify-content:space-between;padding:8px 24px;flex-shrink:0;background:var(--surface-page);border-bottom:1px solid var(--border);position:relative;z-index:3}
.file-viewer-title{font-size:12px;font-weight:600;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.file-viewer-close{background:none;border:none;font-size:20px;color:var(--text-tertiary);cursor:pointer;padding:0 4px;line-height:1}
.file-viewer-close:hover{color:var(--text-primary)}
.fv-ai-group{display:inline-flex;align-items:center;margin-right:8px}
.fv-ai-wrap{position:relative;display:inline-block}
.fv-ai-trigger{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border:none;border-radius:12px;cursor:pointer;color:#fff;font-size:11px;font-weight:600;line-height:1.4;letter-spacing:.2px;background:linear-gradient(135deg,#4285F4 0%,#9B72F2 50%,#D96570 100%);transition:opacity .15s,transform .15s,box-shadow .15s}
.fv-ai-trigger:hover{opacity:.9;transform:translateY(-1px);box-shadow:0 2px 6px rgba(0,0,0,.15)}
.fv-ai-trigger:active{transform:translateY(0);box-shadow:none}
.fv-ai-trigger .fv-ai-caret{width:10px;height:6px;display:block;transition:transform .15s}
.fv-ai-trigger[aria-expanded="true"] .fv-ai-caret{transform:rotate(180deg)}
.fv-ai-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:160px;background:var(--card,#fff);border:1px solid var(--border);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.12);padding:4px;z-index:1000;display:flex;flex-direction:column;gap:2px}
.fv-ai-menu[hidden]{display:none}
.fv-ai-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border:none;border-radius:6px;background:transparent;cursor:pointer;font-size:13px;color:var(--text-primary);text-align:left;width:100%;transition:background .12s;text-decoration:none;-webkit-tap-highlight-color:transparent}
.fv-ai-item:hover{background:var(--surface-page,#f6f7fa)}
.fv-ai-item-icon{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;color:#fff;flex-shrink:0}
.fv-ai-item-icon svg{width:13px;height:13px;display:block}
.fv-ai-item-label{font-weight:500}
.fv-ai-chatgpt .fv-ai-item-icon,.fv-ai-item.fv-ai-chatgpt .fv-ai-item-icon{background:#10A37F}
.fv-ai-gemini  .fv-ai-item-icon,.fv-ai-item.fv-ai-gemini  .fv-ai-item-icon{background:linear-gradient(135deg,#4285F4 0%,#9B72F2 50%,#D96570 100%)}
.fv-ai-claude  .fv-ai-item-icon,.fv-ai-item.fv-ai-claude  .fv-ai-item-icon{background:#D97757}
.fv-ai-grok    .fv-ai-item-icon,.fv-ai-item.fv-ai-grok    .fv-ai-item-icon{background:#000}
.file-viewer-body{position:relative;flex:1;display:flex;min-height:0}
.file-viewer-frame{flex:1;border:none;width:100%;background:var(--surface-page)}
.file-viewer-loading{position:absolute;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--surface-page);color:#888;font:13px sans-serif;z-index:2}
.file-viewer-loading.show{display:flex}
.file-viewer-loading .fv-spinner{width:28px;height:28px;border:2.5px solid #e0e0e0;border-top-color:#7c3aed;border-radius:50%;animation:fv-spin .7s linear infinite}
@keyframes fv-spin{to{transform:rotate(360deg)}}

/* ─── Mobile File Viewer Overlay ─── */
@media(max-width:1100px){
  .file-viewer-overlay{position:fixed;inset:0;z-index:9999;background:var(--surface-page);display:flex;flex-direction:column}
  .file-viewer-overlay .file-viewer-header{padding:12px 16px;border-bottom:1px solid var(--border);background:var(--surface-page)}
  .file-viewer-overlay .file-viewer-title{font-size:14px}
  .file-viewer-overlay .file-viewer-close{font-size:24px;padding:0 8px}
  .file-viewer-overlay .fv-ai-trigger{font-size:12px;padding:6px 12px}
  .file-viewer-overlay .fv-ai-item{font-size:13px;padding:10px 12px}
  .file-viewer-overlay .fv-ai-menu{min-width:180px}
  .file-viewer-overlay .file-viewer-frame{flex:1;border:none;width:100%}
}

/* ─── Attachments ─── */
.file-list{display:flex;flex-direction:column;gap:4px}
.file-item{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--surface-page);border-radius:var(--radius);text-decoration:none;transition:all .15s var(--ease);cursor:pointer;border:1px solid transparent}
.file-item:hover{background:var(--brand-tint);border-color:rgba(114,31,229,0.1)}
.file-icon{font-size:16px;flex-shrink:0;width:24px;text-align:center}
.file-name{flex:1;font-size:13px;color:var(--text-primary);font-weight:500;line-height:1.4;word-break:break-all}
.file-dl{flex-shrink:0;color:var(--text-disabled);transition:color .15s var(--ease)}
.file-item:hover .file-dl{color:var(--brand)}

/* ─── Bidder Table ─── */
.bidder-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:4px}
.bidder-table th{padding:6px 5px;text-align:left;font-weight:600;color:var(--text-secondary);border-bottom:2px solid var(--border);font-size:12px;white-space:nowrap;background:var(--surface-page)}
.bidder-table td{padding:5px 5px;border-bottom:1px solid var(--border);color:var(--text-primary);line-height:1.3;font-size:12px}
.bidder-table tr:last-child td{border-bottom:none}
.bidder-table .winner-row td{background:rgba(114,31,229,0.05);font-weight:600}
.bidder-table .winner-row td:first-child{color:var(--brand)}

/* ─── Modal ─── */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.4);backdrop-filter:blur(4px);z-index:1000;align-items:center;justify-content:center}
.modal-overlay.show{display:flex}
.modal{background:var(--card);border-radius:var(--radius-xl);padding:28px;width:90%;max-width:440px;box-shadow:var(--shadow-modal)}
.modal-lg{max-width:720px;max-height:80vh;display:flex;flex-direction:column}
.modal-lg .modal-scroll{overflow-y:auto;flex:1;margin-top:12px}
.bidder-link{color:var(--brand);cursor:pointer;text-decoration:none;font-weight:500}
.bidder-link:hover{text-decoration:underline}
.modal h3{font-size:20px;font-weight:700;color:var(--text-primary);margin-bottom:20px}
.form-group{margin-bottom:16px}
.form-label{font-size:13px;color:var(--text-secondary);font-weight:600;display:block;margin-bottom:6px;text-transform:uppercase;letter-spacing:0.05em}
.form-input{width:100%;background:var(--input-bg);border:1px solid transparent;border-radius:var(--radius);padding:10px 14px;color:var(--text-primary);font-size:15px;font-family:inherit;outline:none;transition:border .2s var(--ease)}
.form-input:focus{border-color:var(--brand);background:var(--card)}
.form-hint{font-size:13px;color:var(--text-tertiary);margin-top:8px;line-height:1.6}
.form-hint a{color:var(--brand);text-decoration:none;font-weight:600}
.form-hint a:hover{text-decoration:underline}
.modal-btns{display:flex;gap:8px;justify-content:flex-end;margin-top:24px}