/* Cortex VAT: the Cortex black and gold ground, one working desk per tab. Hero, sticky tab rail, then inputs left and the worked answer right. */
:root{--vat-good:#9cd1af;--vat-good-soft:#152419;--vat-warn:#e3b15a;--vat-warn-soft:#2a2112;--vat-bad:#e7909c;--vat-bad-soft:#2b1619;--vat-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
.num,td.n,th.n{font-family:var(--vat-mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.small{font-size:13px}
.vat-wrap{display:grid;gap:0}

/* hero */
.vat-hero{min-height:520px}
.vat-hero .hero-content{padding-block:64px 56px}
.vat-hero h1{font-size:clamp(3rem,6.4vw,6rem);line-height:.92;letter-spacing:-.07em;margin:18px 0 22px;max-width:760px;font-weight:900;text-wrap:balance}
.vat-hero h1 em{font-style:normal;color:var(--gold2)}
.vat-hero .lede{font-size:18px;max-width:560px;color:#e2ddd3;line-height:1.5;margin:0}
.hero-proof{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;padding:0;list-style:none}
.hero-proof li{display:flex;align-items:center;gap:9px;font-size:13px;color:#d5cbb9}
.hero-proof li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* tab rail */
.vat-tabs{position:sticky;top:0;z-index:6;background:#090909f2;backdrop-filter:blur(8px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.vat-tabs .shell{display:flex;gap:4px;overflow-x:auto;padding-block:10px;scrollbar-width:none}
.vat-tabs .shell::-webkit-scrollbar{display:none}
.vat-tabs button{border:1px solid transparent;border-radius:100px;background:transparent;color:var(--muted);font-size:13px;font-weight:800;padding:9px 15px;white-space:nowrap;display:inline-flex;align-items:center;gap:8px}
.vat-tabs button i{font-style:normal;font-family:var(--vat-mono);font-size:11px;color:var(--gold);font-weight:600}
.vat-tabs button:hover{color:var(--ink)}
.vat-tabs button[aria-selected=true]{background:#1d1910;border-color:#5e5235;color:var(--gold2)}

/* panels */
.vat-panel{padding-block:56px 72px;display:grid;gap:26px}
.vat-intro{display:grid;gap:10px;max-width:70ch}
.vat-intro h2{font-size:clamp(2rem,4vw,3.4rem);line-height:.98;letter-spacing:-.06em;margin:0;font-weight:900;text-wrap:balance}
.vat-intro p{color:var(--muted);margin:0;font-size:16px}
.grid2{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:20px;align-items:start}
.card{background:var(--panel);border:1px solid var(--line);border-radius:17px;padding:24px;display:grid;gap:16px;min-width:0}
.card.gold{border-color:#5e5235;background:radial-gradient(circle at 92% 6%,#3a2e16 0,transparent 46%),#151411}
.card.flat{background:transparent;border-style:dashed}
.card h3{font-size:20px;letter-spacing:-.03em;margin:0;font-weight:850}
.card h3 .small{font-weight:600}
.fields{display:grid;gap:14px}
.field{display:grid;gap:6px}
.field label,.field .lbl{font-size:13px;font-weight:800}
.field .hint{font-size:12.5px;color:var(--muted)}
.field input[type=number],.field input[type=text],.field input[type=date],.field select{width:100%;color:var(--ink);background:var(--bg);border:1px solid #625638;border-radius:10px;padding:11px 13px;min-width:0;font-size:15px}
.field input[type=number]{font-family:var(--vat-mono);font-variant-numeric:tabular-nums}
.affix{display:flex;align-items:stretch}
.affix span{display:grid;place-items:center;padding:0 11px;font-size:12px;font-weight:800;color:var(--gold);background:#161410;border:1px solid #625638;border-right:0;border-radius:10px 0 0 10px}
.affix input{border-radius:0 10px 10px 0}
.affix.post span{border-right:1px solid #625638;border-left:0;border-radius:0 10px 10px 0;order:2}
.affix.post input{border-radius:10px 0 0 10px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.45}
.check input{margin-top:3px;accent-color:var(--gold)}
.seg{display:flex;background:var(--bg);border:1px solid #625638;border-radius:10px;padding:3px;gap:3px}
.seg label{flex:1;text-align:center;font-size:13.5px;font-weight:700;padding:8px;border-radius:8px;cursor:pointer;color:var(--muted);position:relative}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label:has(input:checked){background:#2b2415;color:var(--gold2)}
.btns{display:flex;gap:9px;flex-wrap:wrap;align-items:center}
button.ghost{font-weight:750;background:transparent;color:var(--ink);border:1px solid #625638;border-radius:10px;padding:10px 15px;font-size:13.5px}
button.ghost:hover{border-color:var(--gold);color:var(--gold2)}
button.ghost.danger:hover{border-color:var(--vat-bad);color:var(--vat-bad)}
.button:disabled,button.ghost:disabled{opacity:.45;cursor:not-allowed;transform:none}
.status-line{font-size:13px;color:var(--muted)}

/* verdicts and results */
.verdict{border-radius:14px;padding:20px 22px;display:grid;gap:6px;border:1px solid var(--line);background:var(--bg)}
.verdict .v{font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.02;letter-spacing:-.05em;font-weight:900}
.tone-bad{border-color:#5a2a30;background:var(--vat-bad-soft)} .tone-bad .v{color:var(--vat-bad)}
.tone-warn{border-color:#5c4a22;background:var(--vat-warn-soft)} .tone-warn .v{color:var(--vat-warn)}
.tone-good{border-color:#3c6850;background:var(--vat-good-soft)} .tone-good .v{color:var(--vat-good)}
.tone-neutral .v{color:var(--ink)}
ul.points{margin:0;padding-left:18px;display:grid;gap:8px;font-size:14.5px;line-height:1.5}
ul.points li::marker{color:var(--gold)}
ul.points a{color:var(--gold2);font-weight:750;text-decoration:none}
ul.points a:hover{text-decoration:underline}

/* threshold meter */
.meter{display:grid;gap:8px}
.meter-head{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;align-items:baseline}
.track{position:relative;height:14px;background:#1a1916;border:1px solid var(--line);border-radius:100px;overflow:hidden}
.fill{position:absolute;inset:0 auto 0 0;background:linear-gradient(90deg,#8d7331,var(--gold2));border-radius:100px}
.mark-line{position:absolute;top:-1px;bottom:-1px;width:2px;background:var(--ink);opacity:.55}
.ticks{position:relative;height:36px}
.tick{position:absolute;top:0;transform:translateX(-50%);display:grid;justify-items:center;gap:3px;font-size:11.5px;color:var(--muted);white-space:nowrap}
.tick::before{content:"";width:1px;height:8px;background:var(--muted)}
.tick.end{transform:translateX(-100%);justify-items:end}

/* tables */
.tscroll{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--bg)}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);font-weight:850;background:#121110;white-space:nowrap}
td.n,th.n{text-align:right;white-space:nowrap}
tr:last-child td{border-bottom:0}
tr.total td{font-weight:800;background:#141310}
tr.key td{font-weight:800;color:var(--gold2)}
td .boxno{font-family:var(--vat-mono);font-size:12px;color:var(--muted)}
.lines th,.lines td{padding:5px 7px;vertical-align:middle}
.lines input,.lines select{padding:6px 8px;font-size:13px;background:transparent;border:1px solid transparent;border-radius:7px;color:var(--ink);min-width:0}
.lines input:hover,.lines select:hover,.lines input:focus,.lines select:focus{background:#161410;border-color:#625638}
.lines select option{background:#111}
.lines input.w-num{width:7.5em;text-align:right;font-family:var(--vat-mono)}
.lines input.w-trn{width:11.5em;font-family:var(--vat-mono)}
.lines input.w-date{width:9.8em}
.lines input.w-inv{width:7.5em}
.lines input.w-party{width:14em}
.lines td.flags{min-width:190px}
.x{border:0;background:none;color:var(--muted);cursor:pointer;padding:4px 8px;border-radius:6px;font-size:14px}
.x:hover{color:var(--vat-bad);background:var(--vat-bad-soft)}
.pill{display:inline-block;font-size:11px;font-weight:800;padding:3px 8px;border-radius:100px;margin:1px 3px 1px 0;white-space:nowrap;border:1px solid transparent}
.p-bad{background:var(--vat-bad-soft);color:var(--vat-bad);border-color:#5a2a30} .p-warn{background:var(--vat-warn-soft);color:var(--vat-warn);border-color:#5c4a22} .p-good{background:var(--vat-good-soft);color:var(--vat-good);border-color:#3c6850} .p-neutral{background:#1a1916;color:#c8bdab;border-color:var(--line)}
tr.blocked td{opacity:.6}

/* return builder */
.hero-figure{display:grid;gap:4px}
.hero-figure .amt{font-family:var(--vat-mono);font-size:clamp(2rem,4vw,2.6rem);font-weight:600;letter-spacing:-.02em;color:var(--gold2)}
.hero-figure .amt.credit{color:var(--vat-good)}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.stat{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:grid;gap:2px}
.stat b{font-family:var(--vat-mono);font-weight:600;font-size:17px}
.drops{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label.drop{display:grid;gap:4px;padding:18px;border:1.5px dashed #625638;border-radius:14px;cursor:pointer;background:var(--bg);text-align:left;position:relative}
label.drop:hover,label.drop.over{border-color:var(--gold);background:#17140c}
label.drop input{position:absolute;opacity:0;width:1px;height:1px}
label.drop strong{font-size:15px}
.paste{width:100%;min-height:92px;resize:vertical;color:var(--ink);background:var(--bg);border:1px solid #625638;border-radius:10px;padding:11px 13px;font:13px/1.5 var(--vat-mono)}
.queue{display:grid;gap:6px}
.qitem{display:flex;gap:10px;align-items:center;justify-content:space-between;font-size:13px;padding:8px 11px;border:1px solid var(--line);border-radius:9px;background:var(--bg)}
.qitem span:first-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:14px 18px;border-radius:14px;background:linear-gradient(120deg,#211b10,#151410);border:1px solid #5a4a29;font-size:14px}
.flaglist{display:grid;gap:9px;margin:0;padding:0;list-style:none}
.flaglist li{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;font-size:14px;line-height:1.45}

/* guide */
.guide-steps{display:grid;gap:12px;counter-reset:step}
.guide-step{display:grid;grid-template-columns:64px minmax(0,1fr);gap:18px;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:17px;align-items:start}
.guide-step .no{font-family:var(--vat-mono);font-size:30px;font-weight:600;color:var(--gold);line-height:1;padding-top:4px}
.guide-step h3{font-size:22px;letter-spacing:-.035em;margin:0 0 8px;font-weight:850}
.guide-step p{margin:0;color:var(--muted);font-size:15px;line-height:1.55;max-width:66ch}
.guide-step .go{margin-top:12px}
.guide-step .takeaway{margin-top:12px;padding:12px 14px;border-radius:10px;background:#191710;color:#e3d8c6;font-size:14px;border-left:3px solid var(--gold)}
.glossary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.term{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px;display:grid;gap:5px}
.term b{font-size:15px}
.term span{font-size:13.5px;color:var(--muted);line-height:1.5}
.myth{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:17px;overflow:hidden}
.myth>div{padding:22px;display:grid;gap:8px;align-content:start}
.myth>div:first-child{background:var(--vat-bad-soft);border-right:1px solid var(--line)}
.myth>div:last-child{background:var(--vat-good-soft)}
.myth p{margin:0;font-size:15px;line-height:1.5}
.myth .eyebrow{color:var(--ink)}

/* sectors */
.sector-pick{display:flex;gap:8px;flex-wrap:wrap}
.sector-pick button{border:1px solid #5d5138;border-radius:100px;padding:9px 15px;background:#181714;color:#d1c8b8;font-size:13px;font-weight:800}
.sector-pick button:hover,.sector-pick button[aria-pressed=true]{border-color:var(--gold);background:#292211;color:var(--gold2)}
.treat{font-family:var(--vat-mono);font-size:12px;font-weight:600;padding:3px 9px;border-radius:6px;white-space:nowrap;display:inline-block;border:1px solid var(--line)}
.t-std{background:#1a1916;color:var(--ink)} .t-zero{background:var(--vat-good-soft);color:var(--vat-good);border-color:#3c6850} .t-ex{background:var(--vat-warn-soft);color:var(--vat-warn);border-color:#5c4a22} .t-oos{background:#1a1916;color:var(--muted)} .t-rc{background:#2b2415;color:var(--gold2);border-color:#5e5235}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.cols>div{display:grid;gap:8px;align-content:start}

/* rules */
.rules{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.rules .wide{grid-column:1/-1}
.timeline{display:grid;margin:0;padding:0;list-style:none}
.timeline li{display:grid;grid-template-columns:9em 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.5}
.timeline li:last-child{border-bottom:0}
.timeline b{font-family:var(--vat-mono);font-weight:600;font-size:13px;color:var(--gold2)}
.sources{columns:2;column-gap:28px;font-size:13.5px;margin:0;padding-left:18px}
.sources li{margin-bottom:7px;break-inside:avoid}
.sources a{color:var(--gold2);text-decoration:none}
.sources a:hover{text-decoration:underline}

/* pro card */
.pro-panel{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;padding:36px;border:1px solid #5e5235;border-radius:22px;background:linear-gradient(135deg,#1b1913,#101010 65%)}
.pro-panel h3{font-size:clamp(26px,3vw,38px);line-height:1.05;letter-spacing:-.045em;margin:14px 0 10px;font-weight:900}
.pro-panel p{color:var(--muted);margin:0 0 14px}
.pro-list{display:grid;gap:10px}
.pro-list article{padding:14px 16px;background:#252219;border:1px solid #615637;border-radius:12px;font-size:14px}
.pro-list strong{display:block;font-size:15px;margin-bottom:3px}
.pro-list span{color:var(--muted)}

@media (max-width:900px){.grid2,.cols,.myth,.rules,.pro-panel{grid-template-columns:1fr}.glossary{grid-template-columns:1fr 1fr}.myth>div:first-child{border-right:0;border-bottom:1px solid var(--line)}.vat-hero{min-height:440px}}
@media (max-width:650px){.vat-hero{display:flex;min-height:0;padding-top:0;align-items:end}.vat-hero .hero-image,.vat-hero .hero-shade{height:100%;bottom:0}.vat-hero .hero-content{padding-block:200px 44px}.vat-hero h1{font-size:clamp(2.6rem,12vw,4rem)}.vat-hero .lede{font-size:15.5px}.vat-panel{padding-block:40px 56px}.row2,.drops,.stat-row,.glossary{grid-template-columns:1fr}.guide-step{grid-template-columns:44px 1fr;gap:12px;padding:18px}.guide-step .no{font-size:22px}.sources{columns:1}.timeline li{grid-template-columns:7em 1fr}.pro-panel{padding:24px}.sector-pick button{flex:1 1 calc(50% - 8px);padding:9px 8px}}
@media (prefers-reduced-motion:no-preference){.vat-panel>*{animation:vat-rise .3s ease both}@keyframes vat-rise{from{transform:translateY(5px);opacity:.5}to{transform:none;opacity:1}}}