/* GST portal–style theme — white header, blue nav, light-blue tables */
:root{
  --gst-blue:#0b5394;      /* primary / wordmark */
  --gst-nav:#0b5394;       /* horizontal nav bar */
  --gst-nav-hi:#1769ad;    /* nav hover */
  --teal:#138496;          /* accent */
  --bg:#eef2f6; --panel:#ffffff; --ink:#1f2733; --muted:#667085; --line:#dbe2ea;
  --th:#e7eef6; --thtext:#0b5394;
  --danger:#c0392b; --ok:#1e7e34; --warn:#9a6b00;
  --radius:6px;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",-apple-system,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.45}
a{color:var(--gst-blue);text-decoration:none;cursor:pointer}
[hidden]{display:none !important}
.gst-app{min-height:100vh;display:flex;flex-direction:column}

/* top government strip */
.gst-topstrip{background:#08304f;color:#cfe0ee;font-size:12px;padding:4px 26px;display:flex;align-items:center}
.gst-topstrip .right{margin-left:auto}

/* white header */
.gst-header{background:#fff;border-bottom:3px solid var(--gst-blue);padding:12px 26px;display:flex;align-items:center;gap:14px}
.gst-header .logo{display:flex;align-items:center;gap:12px}
.gst-header .emblem{flex-shrink:0}
.gst-header .wordmark b{display:block;font-size:20px;color:var(--gst-blue);letter-spacing:.2px}
.gst-header .wordmark small{color:var(--muted);font-size:12px}
.gst-header .dept{margin-left:auto;text-align:right}
.gst-header .dept b{display:block;font-size:15px;color:var(--ink)}
.gst-header .dept small{color:var(--muted);font-size:12px}

/* blue horizontal nav */
.gst-nav{background:var(--gst-nav);display:flex;align-items:stretch;padding:0 18px;overflow-x:auto}
.gst-nav a{color:#dceaf6;font-size:13.5px;padding:12px 16px;white-space:nowrap;border-bottom:3px solid transparent}
.gst-nav a:hover{background:var(--gst-nav-hi);color:#fff}
.gst-nav a.active{background:#fff;color:var(--gst-blue);font-weight:600;border-bottom-color:var(--teal)}

/* breadcrumb + search toolbar */
.gst-toolbar{background:#f7f9fb;border-bottom:1px solid var(--line);padding:9px 26px;display:flex;align-items:center;gap:16px}
.gst-toolbar .crumb{font-size:12.5px;color:var(--muted)}
.gst-toolbar .crumb b{color:var(--ink)}
.search{margin-left:auto;flex:0 0 290px}
.search input{width:100%;padding:7px 12px;border:1px solid var(--line);border-radius:var(--radius);font-size:13px}
.gst-toolbar .period{font-size:12px;color:var(--gst-blue);background:#e7eff7;padding:5px 12px;border-radius:var(--radius);font-weight:600}

.content{flex:1;padding:22px 26px 50px;max-width:1500px;width:100%;margin:0 auto}
.gst-footer{background:#08304f;color:#a9c4da;font-size:12px;text-align:center;padding:12px}

/* headings */
.page-head{margin-bottom:16px}
.page-head h2{margin:0 0 4px;font-size:20px;color:var(--gst-blue)}
.page-head p{margin:0;color:var(--muted);max-width:820px}

/* KPI cards */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-bottom:20px}
.kpi{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--gst-blue);border-radius:var(--radius);padding:14px 16px}
.kpi .label{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted)}
.kpi .val{font-size:23px;font-weight:700;margin-top:6px;color:var(--ink)}
.kpi .sub{font-size:12px;color:var(--muted);margin-top:3px}
.kpi.alert{border-top-color:var(--danger)}
.kpi.alert .val{color:var(--danger)}
.kpi.ok{border-top-color:var(--ok)}
.kpi.ok .val{color:var(--ok)}

/* case grid */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
.case-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:15px 17px;cursor:pointer;transition:.12s;display:flex;flex-direction:column;gap:8px}
.case-card:hover{border-color:var(--gst-blue);box-shadow:0 2px 9px rgba(11,83,148,.1)}
.case-card .row1{display:flex;align-items:center;gap:10px}
.case-card .num{width:26px;height:26px;border-radius:5px;background:var(--gst-blue);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:700}
.case-card h3{margin:0;font-size:14px;flex:1;color:var(--gst-blue)}
.case-card p{margin:0;color:var(--muted);font-size:12.5px}
.case-card .metrics{display:flex;gap:18px;margin-top:4px}
.case-card .metrics div{font-size:12px;color:var(--muted)}
.case-card .metrics b{display:block;font-size:16px;color:var(--ink)}

/* badges */
.badge{font-size:10.5px;font-weight:600;padding:2px 9px;border-radius:3px;letter-spacing:.3px}
.badge.live{background:#e1f1e6;color:var(--ok)}
.badge.plan{background:#fdf1d6;color:var(--warn)}
.badge.sec{background:#e3edf7;color:var(--gst-blue)}

/* panels & tables */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;overflow:hidden}
.panel .ph{padding:11px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;background:#f7f9fb}
.panel .ph h3{margin:0;font-size:14px;color:var(--gst-blue)}
.panel .ph .right{margin-left:auto;font-size:12px;color:var(--muted)}
.panel .pb{padding:15px 16px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:9px 16px;font-size:13px;border-bottom:1px solid var(--line)}
th{font-size:11px;text-transform:uppercase;letter-spacing:.4px;color:var(--thtext);background:var(--th)}
tbody tr{cursor:pointer}
tbody tr:nth-child(even){background:#fbfcfe}
tbody tr:hover{background:#eef4fb}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.amt-bad{color:var(--danger);font-weight:600}
.amt-ok{color:var(--ok)}
.gstin{font-family:ui-monospace,Consolas,Menlo,monospace;font-size:12px;color:var(--muted)}

/* steps */
.steps{display:flex;gap:12px;margin:4px 0 0}
.step{flex:1;background:#f3f7fb;border:1px solid var(--line);border-radius:var(--radius);padding:12px}
.step .n{font-size:11px;color:var(--teal);font-weight:700}
.step h4{margin:5px 0 4px;font-size:13px;color:var(--gst-blue)}
.step p{margin:0;font-size:12px;color:var(--muted)}
.arrow{align-self:center;color:var(--muted)}

/* buttons */
.btn{border:1px solid var(--gst-blue);background:#fff;border-radius:var(--radius);padding:6px 13px;font-size:12.5px;cursor:pointer;color:var(--gst-blue)}
.btn:hover{background:#eef4fb}
.btn.primary{background:var(--gst-blue);color:#fff}
.btn.primary:hover{background:var(--gst-nav-hi)}
.btn.danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn.danger:hover{filter:brightness(1.08)}
.btn-row{display:flex;gap:8px}

.back{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;cursor:pointer;margin-bottom:12px}
.back:hover{color:var(--gst-blue)}

/* detail */
.detail-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px}
.detail-head .grow{flex:1}
.detail-head h2{margin:0 0 2px;font-size:20px;color:var(--gst-blue)}
.cat-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.cat-pill{background:#f3f7fb;border:1px solid var(--line);border-radius:var(--radius);padding:8px 12px;font-size:12px}
.cat-pill b{display:block;font-size:14px;color:var(--ink)}

/* hint */
.hint{font-size:11px;color:var(--muted);background:#fff8e6;border:1px solid #f1e2b5;padding:8px 12px;border-radius:var(--radius);margin-bottom:14px}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(8,48,79,.55);display:none;align-items:flex-start;justify-content:center;padding:40px 20px;overflow:auto;z-index:50}
.modal-bg.show{display:flex}
.modal{background:#fff;width:780px;max-width:100%;border-radius:6px;box-shadow:0 18px 50px rgba(0,0,0,.3)}
.modal .mh{display:flex;align-items:center;padding:13px 22px;border-bottom:1px solid var(--line);background:var(--gst-blue);border-radius:6px 6px 0 0}
.modal .mh h3{margin:0;font-size:15px;flex:1;color:#fff}
.modal .mc{padding:28px 38px;font-size:13px;color:#222}
.notice-doc h1{font-size:16px;text-align:center;margin:0 0 2px;color:var(--gst-blue)}
.notice-doc .sub{text-align:center;color:var(--muted);font-size:12px;margin-bottom:18px}
.notice-doc .meta{display:flex;justify-content:space-between;font-size:12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 0;margin:12px 0}
.notice-doc p{margin:10px 0}
.notice-doc table{margin:10px 0;border:1px solid var(--line)}
.notice-doc th,.notice-doc td{border:1px solid var(--line);padding:6px 10px}
.notice-doc .sign{margin-top:30px;text-align:right}
.close-x{cursor:pointer;color:#fff;font-size:22px;line-height:1}

/* analytics: taxpayer picker + layout */
.tp-pick{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.tp-pick label{font-size:12px;font-weight:600;color:#33414f}
.tp-pick select{padding:8px 12px;border:1px solid var(--line);border-radius:var(--radius);font-size:13px;min-width:340px;background:#fff}
.tp-layout{display:grid;grid-template-columns:1fr 380px;gap:16px;align-items:start}
.tp-rhs .panel{margin-bottom:16px}

/* cash vs ITC split bar */
.splitbar{display:flex;height:30px;border-radius:6px;overflow:hidden;border:1px solid var(--line)}
.splitbar span{display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:600;white-space:nowrap}
.seg-itc{background:var(--gst-blue)}.seg-cash{background:var(--teal)}
.splitbar-legend{font-size:12px;color:var(--muted);margin-top:8px}

/* peers */
.ai-note{font-size:11.5px;color:var(--muted);background:#f3f7fb;border:1px solid var(--line);border-radius:6px;padding:7px 10px;margin-bottom:10px}
.peer{border:1px solid var(--line);border-radius:6px;padding:10px 12px;margin-bottom:9px}
.peer-name{font-weight:600;font-size:13px;margin-bottom:5px}
.peer-row{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);padding:1px 0}
.peer-row b{color:var(--ink)}

/* charts */
.chart{width:100%;height:auto;display:block}
.legend{display:flex;gap:16px;font-size:12px;color:var(--muted);margin-bottom:8px;flex-wrap:wrap}
.legend i{display:inline-block;width:11px;height:11px;border-radius:2px;margin-right:5px;vertical-align:-1px}
.sharebar{background:#eef2f6;border-radius:4px;height:12px;overflow:hidden}
.sharebar span{display:block;height:100%}

/* ratio threshold control */
.thr-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.thr-row label{font-size:13px;font-weight:600}
.thr-row input[type=range]{flex:0 0 240px}
.thr-num{width:70px;padding:6px 8px;border:1px solid var(--line);border-radius:var(--radius);font-size:13px}

@media(max-width:1000px){.tp-layout{grid-template-columns:1fr}}

/* login screen */
.login-screen{min-height:100vh;display:flex;flex-direction:column;background:#eef2f6}
.login-band{background:#fff;border-bottom:3px solid var(--gst-blue);padding:14px 26px;display:flex;align-items:center}
.login-band .wordmark b{display:block;font-size:20px;color:var(--gst-blue)}
.login-band .wordmark small{color:var(--muted);font-size:12px}
.login-band .dept-right{margin-left:auto;text-align:right;font-size:15px;font-weight:600}
.login-band .dept-right small{display:block;font-weight:400;color:var(--muted);font-size:12px}
.login-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:30px}
.login-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--gst-blue);border-radius:8px;
  width:380px;max-width:100%;padding:26px 28px;box-shadow:0 6px 24px rgba(11,83,148,.12)}
.login-card h2{margin:0 0 16px;font-size:20px;color:var(--gst-blue)}
.login-card label{display:block;font-size:12.5px;font-weight:600;margin:12px 0 5px;color:#33414f}
.login-card label .req{color:var(--danger)}
.login-card input{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:var(--radius);font-size:14px}
.login-card input:focus{outline:none;border-color:var(--gst-blue);box-shadow:0 0 0 2px rgba(11,83,148,.15)}
.captcha-row{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.captcha{font-family:ui-monospace,Consolas,monospace;font-size:22px;font-weight:700;letter-spacing:6px;
  background:repeating-linear-gradient(45deg,#e7eef6,#e7eef6 6px,#dce7f2 6px,#dce7f2 12px);
  color:var(--gst-blue);padding:6px 16px;border:1px solid var(--line);border-radius:var(--radius);
  font-style:italic;text-decoration:line-through;user-select:none}
.captcha-refresh{cursor:pointer;color:var(--gst-blue);font-size:20px}
.login-btn{width:100%;margin-top:18px;padding:11px;font-size:14px;font-weight:600;letter-spacing:.5px}
.login-err{display:none;background:#fae3e3;color:var(--danger);font-size:12.5px;padding:8px 11px;border-radius:var(--radius);margin-bottom:6px}
.login-hint{font-size:11.5px;color:var(--muted);margin-top:14px;text-align:center}
#logoutLink{cursor:pointer}#logoutLink:hover{text-decoration:underline}

@media(max-width:900px){.kpis{grid-template-columns:repeat(2,1fr)}.case-grid{grid-template-columns:1fr}.steps{flex-direction:column}.arrow{display:none}}