/* Kuber Regulatory Knowledge Bank — portal.css v4.2 */
:root{
  --kp:#1a56db; --kpd:#1e3a8a; --kg:#f8fafc; --ks:#fff;
  --kb:#e2e8f0; --kt:#0f172a; --km:#64748b;
  --kn-w:200px; --kn-bg:#0f172a; --kn-h:#1e293b;
  --kr:10px; --ksh:0 1px 4px rgba(0,0,0,.08);
  --ksh-lg:0 8px 28px rgba(0,0,0,.18);
}
.krkb-portal *,.krkb-portal *::before,.krkb-portal *::after{box-sizing:border-box;}
.krkb-portal{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:14px;color:var(--kt);line-height:1.6;}
.krkb-portal button,.krkb-portal input,.krkb-portal select{font-family:inherit;}

/* ── OUTER LAYOUT ─────────────────────────────────────────────────────── */
.krkb-portal{display:flex;width:100%;min-height:640px;background:var(--kg);border:1px solid var(--kb);border-radius:var(--kr);overflow:hidden;position:relative;}

/* ── SIDEBAR ──────────────────────────────────────────────────────────── */
.krkb-nav{width:var(--kn-w);min-width:var(--kn-w);background:var(--kn-bg);display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto;z-index:50;}
.krkb-brand{display:flex;align-items:center;gap:8px;padding:14px 12px 12px;border-bottom:1px solid rgba(255,255,255,.08);flex-shrink:0;}
.krkb-brand-logo{font-size:18px;}
.krkb-brand-name{font-size:12px;font-weight:700;color:#f1f5f9;line-height:1.3;}
.krkb-nav-list{list-style:none;margin:0;padding:6px 0;flex:1;}
.krkb-nav-item{position:relative;}
.krkb-nav-btn{display:flex;align-items:center;gap:8px;width:100%;padding:9px 12px;background:none;border:none;cursor:pointer;color:#94a3b8;font-size:12px;font-weight:600;text-align:left;transition:background .15s,color .15s;}
.krkb-nav-btn:hover{background:var(--kn-h);color:#f1f5f9;}
.krkb-nav-btn.krkb-active{background:var(--kp);color:#fff;}
.krkb-icon{font-size:14px;flex-shrink:0;}
.krkb-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.krkb-arrow{font-size:14px;color:#475569;transition:transform .2s;flex-shrink:0;}
.krkb-nav-item.krkb-open>.krkb-nav-btn .krkb-arrow{transform:rotate(90deg);}
.krkb-subnav{display:none;background:rgba(0,0,0,.2);}
.krkb-nav-item.krkb-open>.krkb-subnav{display:block;}
.krkb-sub-btn{display:block;width:100%;padding:6px 12px 6px 32px;background:none;border:none;cursor:pointer;color:#64748b;font-size:11px;text-align:left;transition:color .15s,background .15s;line-height:1.4;}
.krkb-sub-btn:hover{color:#cbd5e1;background:rgba(255,255,255,.05);}
.krkb-hamburger{display:none;background:none;border:none;color:#94a3b8;font-size:18px;cursor:pointer;padding:4px 8px;flex-shrink:0;}

/* ── MAIN CONTENT ─────────────────────────────────────────────────────── */
.krkb-main{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden;}
.krkb-topbar{display:none;align-items:center;gap:10px;padding:10px 14px;background:var(--kpd);color:#fff;flex-shrink:0;}
.krkb-topbar-menu{background:none;border:none;color:#fff;font-size:18px;cursor:pointer;padding:0;}
.krkb-topbar-title{flex:1;font-size:13px;font-weight:600;}
.krkb-topbar-sync{font-size:10px;color:rgba(255,255,255,.6);white-space:nowrap;}
.krkb-section{display:none;flex-direction:column;flex:1;overflow-y:auto;padding:16px 18px;min-height:0;}
.krkb-section.krkb-show{display:flex;}

/* ── SECTION HEAD ─────────────────────────────────────────────────────── */
.krkb-sec-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:12px;padding-bottom:10px;border-bottom:2px solid var(--kp);flex-shrink:0;}
.krkb-sec-head h2{margin:0;font-size:16px;font-weight:700;color:var(--kp);}
.krkb-synced{font-size:11px;color:var(--km);background:var(--kg);padding:2px 8px;border-radius:20px;border:1px solid var(--kb);}

/* ── FILTER BAR ───────────────────────────────────────────────────────── */
.krkb-filters{background:var(--ks);border:1px solid var(--kb);border-radius:8px;padding:10px 12px;margin-bottom:10px;flex-shrink:0;}

/* Row 1: always 4 columns horizontal */
.krkb-filter-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:8px;}

.krkb-fg{display:flex;flex-direction:column;gap:3px;}
.krkb-fg label{font-size:10px;font-weight:700;color:var(--km);text-transform:uppercase;letter-spacing:.4px;}
.krkb-fg select,.krkb-fg input[type="date"]{padding:6px 8px;border:1px solid var(--kb);border-radius:6px;font-size:12px;color:var(--kt);background:var(--ks);outline:none;transition:border-color .2s;width:100%;min-width:0;}
.krkb-fg select:focus,.krkb-fg input:focus{border-color:var(--kp);box-shadow:0 0 0 2px rgba(26,86,219,.1);}

/* Row 2: full-width search */
.krkb-search-row{display:flex;gap:6px;align-items:center;}
.krkb-search-row input[type="text"]{flex:1;min-width:0;padding:7px 10px;border:1px solid var(--kb);border-radius:6px;font-size:13px;outline:none;transition:border-color .2s;}
.krkb-search-row input[type="text"]:focus{border-color:var(--kp);box-shadow:0 0 0 2px rgba(26,86,219,.1);}

/* ── BUTTONS ──────────────────────────────────────────────────────────── */
.krkb-btn{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;text-decoration:none!important;transition:all .15s;white-space:nowrap;border:none;line-height:1;}
.krkb-btn-primary{background:var(--kp);color:#fff!important;}
.krkb-btn-primary:hover{background:var(--kpd);}
.krkb-btn-ghost{background:var(--kg);color:var(--km)!important;border:1px solid var(--kb);}
.krkb-btn-ghost:hover{border-color:var(--kp);color:var(--kp)!important;}
.krkb-btn-detail{background:#6366f1;color:#fff!important;padding:4px 8px;font-size:11px;}
.krkb-btn-detail:hover{background:#4f46e5;}
.krkb-btn-ext{background:transparent!important;color:var(--kp)!important;border:1px solid var(--kp);padding:4px 8px;font-size:11px;}
.krkb-btn-ext:hover{background:var(--kp)!important;color:#fff!important;}
.krkb-btn-pdf{background:#dc2626;color:#fff!important;padding:8px 14px;font-size:13px;}
.krkb-btn-pdf:hover{background:#b91c1c;}

/* ── TABLE ────────────────────────────────────────────────────────────── */
.krkb-result-count{font-size:12px;color:var(--km);margin-bottom:6px;flex-shrink:0;}
.krkb-table-wrap{overflow-x:auto;border-radius:8px;border:1px solid var(--kb);box-shadow:var(--ksh);flex:1;}
.krkb-table{width:100%;border-collapse:collapse;font-size:13px;min-width:480px;}
.krkb-table thead{background:var(--kpd);color:#fff;}
.krkb-table thead th{padding:9px 10px;text-align:left;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap;}
.krkb-table tbody tr{border-bottom:1px solid var(--kb);transition:background .1s;cursor:pointer;}
.krkb-table tbody tr:hover{background:#eff6ff;}
.krkb-table tbody tr:last-child{border-bottom:none;}
.krkb-table td{padding:8px 10px;vertical-align:middle;}
.krkb-col-date{width:80px;white-space:nowrap;font-size:11px;color:var(--km);}
.krkb-col-ref{width:130px;}
.krkb-col-src{width:110px;}
.krkb-col-type{width:88px;}
.krkb-col-title{font-weight:500;line-height:1.3;}
.krkb-col-act{width:110px;}
.krkb-ref{font-family:monospace;font-size:10px;background:#f1f5f9;color:#334155;padding:2px 5px;border-radius:3px;display:inline-block;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle;}
.krkb-no-ref{color:#cbd5e1;}
.krkb-title-text{display:block;line-height:1.4;}
.krkb-badge{display:inline-block;padding:2px 7px;border-radius:20px;font-size:10px;font-weight:700;white-space:nowrap;line-height:1.4;}
.krkb-type-badge{background:#f1f5f9;color:#475569;}
.src-rbi{background:#fef3c7;color:#92400e;}
.src-sebi{background:#dbeafe;color:#1e40af;}
.src-it{background:#d1fae5;color:#065f46;}
.src-gst{background:#ede9fe;color:#5b21b6;}
.src-mca{background:#fee2e2;color:#991b1b;}
.src-st{background:#fff7ed;color:#9a3412;}
.src-cus{background:#ecfdf5;color:#065f46;}
.src-cos{background:#fdf2f8;color:#86198f;}
.src-lab{background:#f0fdf4;color:#14532d;}
.src-fema{background:#fffbeb;color:#78350f;}
.src-llp{background:#f0f9ff;color:#0c4a6e;}
.src-indas{background:#fdf4ff;color:#6b21a8;}
.src-ibc{background:#fff1f2;color:#881337;}
.src-default{background:#f1f5f9;color:#374151;}

/* ── STATES ───────────────────────────────────────────────────────────── */
.krkb-loading{padding:40px 20px;text-align:center;color:var(--km);display:flex;align-items:center;justify-content:center;gap:10px;font-size:13px;}
.krkb-empty{padding:36px 16px;text-align:center;color:var(--km);background:var(--kg);border:1px dashed var(--kb);border-radius:8px;font-size:13px;line-height:1.8;}
.krkb-empty.krkb-err,.krkb-err{border-color:#fca5a5;background:#fef2f2;color:#991b1b;}
.krkb-spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--kb);border-top-color:var(--kp);border-radius:50%;animation:krkb-spin .7s linear infinite;flex-shrink:0;}
@keyframes krkb-spin{to{transform:rotate(360deg);}}
.krkb-pager{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:12px;padding-top:10px;border-top:1px solid var(--kb);flex-shrink:0;}
.krkb-page-info{font-size:12px;color:var(--km);}

/* ── DETAIL PANEL ─────────────────────────────────────────────────────── */
.krkb-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:9000;}
.krkb-overlay.krkb-open{display:block;}
.krkb-detail-panel{position:fixed;top:0;right:-100%;bottom:0;width:min(760px,95vw);background:var(--ks);z-index:9001;box-shadow:var(--ksh-lg);transition:right .28s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;}
.krkb-detail-panel.krkb-open{right:0;}
.krkb-detail-inner{flex:1;overflow-y:auto;padding:22px 26px;-webkit-overflow-scrolling:touch;}
.krkb-detail-close{display:inline-flex;align-items:center;gap:5px;margin-bottom:14px;background:none;border:1px solid var(--kb);border-radius:6px;padding:5px 10px;cursor:pointer;font-size:12px;color:var(--km);transition:all .15s;}
.krkb-detail-close:hover{border-color:#dc2626;color:#dc2626;}
.krkb-detail-badges{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px;}
.krkb-detail-title{font-size:16px;font-weight:700;color:var(--kt);margin:0 0 10px;line-height:1.4;}
.krkb-detail-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--km);margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--kb);}
.krkb-detail-meta-item{display:flex;align-items:center;gap:4px;}
.krkb-detail-body{font-size:14px;line-height:1.8;}
.krkb-detail-body p{margin-bottom:10px;}
.krkb-detail-body a{color:var(--kp);}
.krkb-detail-body table{width:100%;border-collapse:collapse;font-size:13px;margin:10px 0;}
.krkb-detail-body th,.krkb-detail-body td{border:1px solid var(--kb);padding:6px 10px;}
.krkb-detail-body th{background:var(--kg);font-weight:600;}
.krkb-detail-notext{text-align:center;padding:32px 20px;color:var(--km);}

/* ── INNER TABS ───────────────────────────────────────────────────────── */
.krkb-inner-tabs{display:flex;gap:4px;flex-wrap:nowrap;overflow-x:auto;margin-bottom:12px;padding-bottom:2px;flex-shrink:0;scrollbar-width:thin;-webkit-overflow-scrolling:touch;}
.krkb-inner-tab{flex-shrink:0;padding:5px 11px;background:var(--kg);border:1px solid var(--kb);border-radius:6px;font-size:11px;font-weight:600;cursor:pointer;color:var(--km);transition:all .15s;white-space:nowrap;}
.krkb-inner-tab:hover{border-color:var(--kp);color:var(--kp);}
.krkb-inner-tab.krkb-active{background:var(--kp);color:#fff;border-color:var(--kp);}
.krkb-inner-pane{display:none;}
.krkb-inner-pane.krkb-show{display:block;}

/* ── CALCULATOR + UTILITY CARDS ─────────────────────────────────────────── */
.krkb-portal .regu-calc-card,.krkb-portal .regu-util-card{margin-bottom:0;box-shadow:none;border:1px solid var(--kb);}
.krkb-portal .regu-calc-header{background:linear-gradient(135deg,var(--kpd) 0%,var(--kp) 100%);padding:12px 16px;}
.krkb-portal .regu-util-header{background:var(--kpd);padding:12px 16px;}
.krkb-portal .regu-calc-body,.krkb-portal .regu-util-body{padding:14px 16px;}

/* ── RESPONSIVE ───────────────────────────────────────────────────────── */
@media(max-width:860px){
  .krkb-nav{position:absolute;left:-100%;top:0;bottom:0;width:220px;transition:left .25s ease;z-index:200;}
  .krkb-nav.krkb-open{left:0;box-shadow:var(--ksh-lg);}
  .krkb-hamburger{display:block;}
  .krkb-topbar{display:flex;}
  /* 4-col becomes 2+2 */
  .krkb-filter-row{grid-template-columns:1fr 1fr;}
}
@media(max-width:520px){
  .krkb-section{padding:10px 12px;}
  .krkb-filter-row{grid-template-columns:1fr 1fr;gap:6px;}
  .krkb-col-ref,.krkb-col-src,.krkb-col-type{display:none;}
  .krkb-col-date{width:68px;font-size:10px;}
  .krkb-col-act{width:80px;}
}