/* ==========================================================================
   TAX LABS — Strategic Design & Analysis
   Premium print / PDF-first strategy dossier
   Identity: infrastructure platform (indigo) · recovery/flow (emerald) · premium (gold)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

:root{
  --ink:#14161f;          /* primary text            */
  --slate:#3a4152;        /* secondary text          */
  --muted:#757e93;        /* captions / meta         */
  --line:#e7e8f1;         /* hairlines               */
  --line-2:#d5d7e6;
  --paper:#ffffff;
  --bg:#edeef4;           /* app background          */
  --panel:#f6f7fc;        /* soft fills              */
  --panel-2:#eceef7;
  --accent:#4f46e5;       /* indigo — primary / platform */
  --accent-d:#3f37c9;
  --accent-soft:#ecebfe;
  --navy:#1e1b4b;         /* deep indigo-navy        */
  --navy-soft:#e9e8f6;
  --emerald:#0e9d78;      /* recovery / money flow   */
  --emerald-d:#0a7d60;
  --emerald-soft:#e2f5ef;
  --gold:#a9822f;         /* premium warm accent     */
  --gold-soft:#f7efdd;
  --amber:#b0611a;
  --amber-soft:#fbf0e3;
  --cyan:#0e7490;
  --cyan-soft:#e0f2f7;
  --good:#1a7a43;
  --good-soft:#e6f4ec;
  --bad:#b3271f;
  --bad-soft:#faeae9;
  --shadow-sm:0 1px 2px rgba(20,22,31,.05);
  --shadow:0 4px 14px rgba(20,22,31,.07),0 1px 3px rgba(20,22,31,.06);
  --shadow-lg:0 18px 50px rgba(20,22,31,.13);
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.6;letter-spacing:-.003em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}

/* ---------- Top navigation ---------- */
.topnav{position:sticky;top:0;z-index:50;background:rgba(30,27,75,.93);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.topnav .inner{max-width:1080px;margin:0 auto;padding:0 24px;display:flex;align-items:center;
  gap:22px;min-height:56px;flex-wrap:wrap}
.topnav .brand{font-weight:700;letter-spacing:.02em;font-size:13.5px;color:#fff;display:flex;align-items:center;gap:10px;text-decoration:none}
.topnav .brand .dot{width:22px;height:22px;border-radius:6px;
  background:linear-gradient(135deg,var(--accent),var(--emerald));
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,.15) inset}
.topnav .links{display:flex;gap:15px;flex-wrap:wrap}
.topnav a{color:#b3b0d4;text-decoration:none;font-size:12.5px;font-weight:500;padding:5px 0;
  border-bottom:2px solid transparent;transition:color .15s,border-color .15s;white-space:nowrap}
.topnav a:hover{color:#fff}
.topnav a.active{color:#fff;border-bottom-color:var(--emerald)}

/* ---------- Page frame ---------- */
.sheet{max-width:1080px;margin:30px auto;background:var(--paper);
  box-shadow:var(--shadow-lg);border-radius:4px;padding:60px 72px 66px}
.doc-head{display:flex;justify-content:space-between;align-items:flex-start;
  border-bottom:1px solid var(--line-2);padding-bottom:14px;margin-bottom:34px}
.doc-head .sec{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:700}
.doc-head .proj{font-size:11px;color:var(--muted);text-align:right;line-height:1.5;font-weight:500}
.kicker{color:var(--accent);font-weight:700;font-size:12px;letter-spacing:.16em;text-transform:uppercase;margin:0 0 10px}

/* ---------- Typography ---------- */
h1{font-family:var(--serif);font-size:40px;line-height:1.08;margin:0 0 14px;
  letter-spacing:-.015em;font-weight:600;color:var(--ink)}
h2{font-family:var(--serif);font-size:23px;margin:42px 0 14px;font-weight:600;color:var(--navy);
  letter-spacing:-.01em;display:flex;align-items:baseline;gap:12px}
h2 .n{font-family:var(--sans);color:var(--accent);font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;background:var(--accent-soft);
  padding:3px 8px;border-radius:5px;position:relative;top:-2px}
h3{font-size:15.5px;margin:24px 0 8px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 13px}
.lead{font-size:18px;line-height:1.55;color:var(--slate);font-weight:400;letter-spacing:-.006em}
strong{font-weight:650;color:var(--ink)}
em{color:var(--slate)}
a.ref{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(79,70,229,.3)}
small,.small{font-size:12.5px;color:var(--muted);line-height:1.5}
.muted{color:var(--muted)}
code{font-family:var(--mono);font-size:.86em;background:var(--panel-2);padding:1px 5px;border-radius:4px;color:var(--accent-d)}
ul,ol{margin:0 0 14px;padding-left:20px}
li{margin:5px 0;padding-left:2px}
li::marker{color:var(--accent)}
hr{border:none;border-top:1px solid var(--line);margin:28px 0}

/* ---------- Tables ---------- */
table{width:100%;border-collapse:separate;border-spacing:0;margin:16px 0 8px;font-size:13px;
  border:1px solid var(--line);border-radius:9px;overflow:hidden;box-shadow:var(--shadow-sm)}
thead th{background:var(--navy);color:#fff;text-align:left;padding:10px 12px;font-weight:600;
  font-size:11px;letter-spacing:.04em;text-transform:uppercase;vertical-align:bottom}
tbody td{padding:9px 12px;border-top:1px solid var(--line);vertical-align:top;line-height:1.45}
tbody tr:first-child td{border-top:none}
tbody tr:nth-child(even){background:var(--panel)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
td.ctr,th.ctr{text-align:center}
.t-tight td{padding:7px 11px}
.tcap{font-size:11.5px;color:var(--muted);margin:2px 0 18px;line-height:1.5}
.tcap b{color:var(--slate)}
.check{color:var(--emerald-d);font-weight:800}
.cross{color:var(--bad);font-weight:800}
.partial{color:var(--amber);font-weight:800}

/* ---------- Callouts ---------- */
.callout{border:1px solid var(--line);border-left:3px solid var(--accent);
  background:linear-gradient(180deg,var(--panel),#fff);padding:14px 18px;border-radius:0 9px 9px 0;margin:18px 0;
  box-shadow:var(--shadow-sm)}
.callout.warn{border-left-color:var(--amber);background:linear-gradient(180deg,var(--amber-soft),#fff)}
.callout.good{border-left-color:var(--emerald);background:linear-gradient(180deg,var(--emerald-soft),#fff)}
.callout.key{border-left-color:var(--navy);background:linear-gradient(180deg,var(--navy-soft),#fff)}
.callout.gold{border-left-color:var(--gold);background:linear-gradient(180deg,var(--gold-soft),#fff)}
.callout .lbl{font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;font-weight:800;
  color:var(--accent);display:block;margin-bottom:5px}
.callout.warn .lbl{color:var(--amber)}
.callout.good .lbl{color:var(--emerald-d)}
.callout.key .lbl{color:var(--navy)}
.callout.gold .lbl{color:var(--gold)}
.callout p:last-child{margin-bottom:0}

/* ---------- Stat grid ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0 26px}
.stat{background:linear-gradient(165deg,#fff,var(--panel));border:1px solid var(--line);
  border-radius:12px;padding:18px 18px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.stat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);opacity:.9}
.stat.e::before{background:var(--emerald)}
.stat.g::before{background:var(--gold)}
.stat .v{font-family:var(--serif);font-size:30px;font-weight:600;line-height:1.02;color:var(--navy);letter-spacing:-.02em}
.stat .v.indigo{color:var(--accent)}
.stat .v.emerald{color:var(--emerald-d)}
.stat .v.gold{color:var(--gold)}
.stat .k{font-size:11.5px;color:var(--muted);margin-top:7px;line-height:1.4;font-weight:500}
.stats.c3{grid-template-columns:repeat(3,1fr)}
.stats.c2{grid-template-columns:repeat(2,1fr)}
.stats.eq{grid-template-columns:repeat(5,1fr)}
.stats.eq .v{font-size:19px;line-height:1.14}
.stats.eq .k{font-size:10.5px;margin-top:6px}
@media(max-width:860px){.stats.eq{grid-template-columns:repeat(2,1fr)}}
@media(max-width:440px){.stats.eq{grid-template-columns:1fr}}

/* ---------- Cards / nav grid ---------- */
.cardgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0}
.cardgrid.c3{grid-template-columns:repeat(3,1fr)}
.navcard{display:block;text-decoration:none;color:inherit;border:1px solid var(--line);
  border-radius:12px;padding:20px 22px;background:#fff;transition:.18s ease;position:relative;box-shadow:var(--shadow-sm)}
.navcard:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-2px)}
.navcard .idx{font-family:var(--serif);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.02em}
.navcard h3{margin:7px 0 6px;font-size:17px;color:var(--navy)}
.navcard p{margin:0;font-size:12.5px;color:var(--slate);line-height:1.5}

/* ---------- Feature / concept cards ---------- */
.fgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}
.fgrid.c2{grid-template-columns:repeat(2,1fr)}
.fgrid.c4{grid-template-columns:repeat(4,1fr)}
.fcard{border:1px solid var(--line);border-radius:12px;padding:16px 17px;background:linear-gradient(168deg,#fff,var(--panel));
  box-shadow:var(--shadow-sm)}
.fcard .ic{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);margin-bottom:10px}
.fcard .ic svg{width:19px;height:19px;stroke:var(--accent);fill:none;stroke-width:1.8}
.fcard.e .ic{background:var(--emerald-soft)}.fcard.e .ic svg{stroke:var(--emerald-d)}
.fcard.g .ic{background:var(--gold-soft)}.fcard.g .ic svg{stroke:var(--gold)}
.fcard.c .ic{background:var(--cyan-soft)}.fcard.c .ic svg{stroke:var(--cyan)}
.fcard h4{margin:0 0 5px;font-size:13.5px;font-weight:700;color:var(--navy);letter-spacing:-.01em}
.fcard p{margin:0;font-size:12px;color:var(--slate);line-height:1.5}

/* ---------- Pills ---------- */
.pill{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:.02em;
  padding:2px 9px;border-radius:20px;background:var(--accent-soft);color:var(--accent-d);white-space:nowrap;
  border:1px solid rgba(79,70,229,.14)}
.pill.navy{background:var(--navy-soft);color:var(--navy);border-color:rgba(30,27,75,.14)}
.pill.emerald{background:var(--emerald-soft);color:var(--emerald-d);border-color:rgba(14,157,120,.18)}
.pill.amber{background:var(--amber-soft);color:var(--amber);border-color:rgba(176,97,26,.16)}
.pill.good{background:var(--good-soft);color:var(--good);border-color:rgba(26,122,67,.16)}
.pill.bad{background:var(--bad-soft);color:var(--bad);border-color:rgba(179,39,31,.16)}
.pill.gray{background:var(--panel-2);color:var(--slate);border-color:var(--line-2)}
.pill.gold{background:var(--gold-soft);color:var(--gold);border-color:rgba(169,130,47,.2)}
.pill.cyan{background:var(--cyan-soft);color:var(--cyan);border-color:rgba(14,116,144,.18)}
.p0{background:#dcf3e4;color:#15683a;border-color:rgba(21,104,58,.18)}
.p1{background:#e2e0fb;color:#3f37c9;border-color:rgba(63,55,201,.16)}
.p2{background:#fbf1cf;color:#856327;border-color:rgba(133,99,39,.18)}
.p3{background:#eef1f6;color:#4a5568;border-color:var(--line-2)}

/* ---------- Layout helpers ---------- */
.cols{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.center{text-align:center}

/* ---------- Layer stack (platform architecture) ---------- */
.stack{border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:20px 0;box-shadow:var(--shadow-sm);background:#fff}
.layer{display:grid;grid-template-columns:150px 1fr;align-items:stretch;border-top:1px solid var(--line)}
.layer:first-child{border-top:none}
.layer .lname{padding:14px 16px;display:flex;flex-direction:column;justify-content:center;gap:3px;
  background:var(--navy);color:#fff}
.layer .lname .lt{font-weight:700;font-size:13px;letter-spacing:-.01em}
.layer .lname .ls{font-size:10px;color:#b9b6dd;letter-spacing:.03em;text-transform:uppercase;font-weight:600}
.layer .lbody{padding:12px 14px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:linear-gradient(180deg,var(--panel),#fff)}
.layer.accent .lname{background:linear-gradient(135deg,var(--accent),var(--accent-d))}
.layer.emerald .lname{background:linear-gradient(135deg,var(--emerald),var(--emerald-d))}
.layer.gold .lname{background:linear-gradient(135deg,#b9923a,var(--gold))}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;color:var(--slate);
  background:#fff;border:1px solid var(--line-2);border-radius:8px;padding:6px 11px;box-shadow:var(--shadow-sm)}
.chip b{color:var(--navy);font-weight:700}
.chip .d{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.chip .d.e{background:var(--emerald)}.chip .d.g{background:var(--gold)}.chip .d.c{background:var(--cyan)}.chip .d.a{background:var(--amber)}

/* ---------- Diagrams ---------- */
figure{margin:22px 0}
figure svg{max-width:100%;height:auto;display:block}
figcaption{font-size:11.5px;color:var(--muted);margin-top:10px;text-align:center;line-height:1.5}
.diagram-wrap{border:1px solid var(--line);border-radius:12px;padding:22px;
  background:linear-gradient(180deg,var(--panel),#fff);box-shadow:var(--shadow-sm)}
.diagram-wrap.tight{padding:16px}

/* ---------- Pager ---------- */
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:48px;
  border-top:1px solid var(--line);padding-top:20px}
.pager a{flex:1;text-decoration:none;color:var(--slate);border:1px solid var(--line);
  border-radius:10px;padding:13px 18px;font-size:13px;transition:.15s;background:#fff}
.pager a:hover{border-color:var(--accent);color:var(--ink);box-shadow:var(--shadow-sm)}
.pager a.next{text-align:right}
.pager a .d{display:block;font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:3px;font-weight:600}
.pager a .t{font-weight:700;color:var(--ink)}
.pager a.empty{visibility:hidden}

/* ---------- Footer ---------- */
.docfoot{max-width:1080px;margin:0 auto 44px;padding:0 72px;color:var(--muted);font-size:11px;
  display:flex;justify-content:space-between}

/* ---------- Sources ---------- */
.sources{font-size:11.5px;color:var(--muted);margin-top:20px;padding-top:12px;border-top:1px dashed var(--line-2);line-height:1.7}
.sources b{color:var(--slate)}
.sources a{color:var(--accent);text-decoration:none}
.sources .srcnum{color:var(--accent-d);font-weight:800;font-variant-numeric:tabular-nums}

/* ---------- Inline citations ---------- */
sup.cite{font-size:9px;line-height:0;vertical-align:super;margin-left:1px;white-space:nowrap;font-variant-numeric:tabular-nums}
sup.cite a{color:var(--accent);font-weight:800;text-decoration:none;padding:0 1px}
sup.cite a:hover{text-decoration:underline}

/* ---------- Confidence flags ---------- */
.conf{display:inline-flex;align-items:center;gap:5px;font-size:10px;font-weight:700;letter-spacing:.03em;
  text-transform:uppercase;padding:2px 7px;border-radius:5px}
.conf.hi{background:var(--good-soft);color:var(--good)}
.conf.md{background:var(--amber-soft);color:var(--amber)}
.conf.lo{background:var(--bad-soft);color:var(--bad)}

/* ---------- Glossary ---------- */
.glossary{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:14px 0 26px;
  box-shadow:var(--shadow-sm);background:#fff}
.glossary .term{display:grid;grid-template-columns:230px 1fr;gap:22px;padding:13px 20px;
  border-top:1px solid var(--line);align-items:baseline}
.glossary .term:first-child{border-top:none}
.glossary .term:nth-child(even){background:var(--panel)}
.glossary dt{font-weight:700;color:var(--navy);font-size:13.5px;letter-spacing:-.01em}
.glossary dt .alt{display:block;font-weight:500;color:var(--muted);font-size:11.5px;margin-top:3px;line-height:1.4}
.glossary dd{margin:0;font-size:13px;color:var(--slate);line-height:1.55}
.glossary dd strong{color:var(--ink);font-weight:650}
.gloss-cat{font-family:var(--sans);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:800;margin:30px 0 6px}
@media(max-width:860px){.glossary .term{grid-template-columns:1fr;gap:4px;padding:12px 16px}}
@media print{.glossary .term{page-break-inside:avoid}}

/* ---------- Roadmap phases ---------- */
.phase{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:16px 0;box-shadow:var(--shadow-sm)}
.phase .ph-head{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;color:#fff}
.phase .ph-head .lbl{font-weight:700;font-size:14px;letter-spacing:.01em}
.phase .ph-head .wk{font-size:12px;opacity:.92;font-weight:500}
.phase .ph-body{padding:15px 18px}
.ph-poc .ph-head{background:linear-gradient(90deg,var(--accent),var(--accent-d))}
.ph-mvp .ph-head{background:linear-gradient(90deg,var(--navy),#141136)}
.ph-plat .ph-head{background:linear-gradient(90deg,var(--emerald),var(--emerald-d))}
details.phase>summary{cursor:pointer;user-select:none;list-style:none}
details.phase>summary::-webkit-details-marker{display:none}
details.phase>summary:hover{filter:brightness(1.07)}
details.phase>summary .wk{display:inline-flex;align-items:center;gap:9px}
details.phase>summary .wk::after{content:"";width:7px;height:7px;
  border-right:2px solid rgba(255,255,255,.85);border-bottom:2px solid rgba(255,255,255,.85);
  transform:rotate(45deg) translateY(-2px);transition:transform .18s ease}
details.phase[open]>summary .wk::after{transform:rotate(225deg) translateY(2px)}

/* ---------- Requirements cascade / mini-roadmap ---------- */
.cascade{list-style:none;counter-reset:casc;margin:18px 0 4px;padding:0}
.cascade>li{position:relative;padding:1px 0 18px 52px;min-height:34px}
.cascade>li:last-child{padding-bottom:0}
.cascade>li::before{counter-increment:casc;content:counter(casc,decimal-leading-zero);
  position:absolute;left:0;top:0;width:34px;height:34px;border-radius:10px;
  background:var(--accent-soft);color:var(--accent-d);border:1px solid rgba(79,70,229,.22);
  font-weight:800;font-size:12.5px;font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;z-index:1}
.cascade>li::after{content:"";position:absolute;left:16.5px;top:36px;bottom:0;width:2px;
  background:linear-gradient(var(--accent),var(--line-2))}
.cascade>li:last-child::after{display:none}
.cascade .cl{display:block;font-weight:700;color:var(--navy);font-size:14px;letter-spacing:-.01em;margin:6px 0 2px}
.cascade .cd{font-size:12.8px;color:var(--slate);line-height:1.5}
@media print{.cascade>li{page-break-inside:avoid}}

/* ---------- Risk board ---------- */
.riskboard{margin:16px 0 8px}
.risktier{margin:0 0 14px}
.rt-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.rt-head .rt-n{font-size:11.5px;color:var(--muted);font-weight:600}
.riskgrid{display:grid;gap:10px}
.riskgrid.r2{grid-template-columns:1fr 1fr}
.riskgrid.r3{grid-template-columns:repeat(3,1fr)}
.risk{border:1px solid var(--line);border-left:3px solid var(--line-2);border-radius:0 8px 8px 0;
  background:#fff;padding:9px 12px;font-size:12.3px;line-height:1.45;color:var(--slate);box-shadow:var(--shadow-sm)}
.risk b{color:var(--ink)}
.risk .mit{display:block;margin-top:5px;font-size:11.5px;color:var(--accent-d);font-weight:600}
.risk.sev-hi{border-left-color:var(--bad)}
.risk.sev-md{border-left-color:var(--amber)}
.risk.sev-lo{border-left-color:var(--line-2)}
@media(max-width:860px){.riskgrid.r2,.riskgrid.r3{grid-template-columns:1fr}}
@media print{.risktier{page-break-inside:avoid}}

/* ---------- Unified timeline (single rail) ---------- */
.ptl{position:relative;margin:20px 0 8px}
.ptl-stage{position:relative;padding:0 0 24px 76px;min-height:42px}
.ptl-stage::before{content:"";position:absolute;left:26px;top:8px;bottom:-4px;width:2px;background:var(--line-2)}
.ptl-stage:last-child{padding-bottom:0}
.ptl-stage:last-child::before{display:none}
.ptl-badge{position:absolute;left:0;top:0;width:54px;min-height:38px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;font-size:9.5px;font-weight:800;
  letter-spacing:.02em;line-height:1.12;color:#fff;padding:5px 3px;border-radius:10px;
  box-shadow:var(--shadow-sm);z-index:1}
.ptl-badge.b-navy{background:var(--navy)}
.ptl-badge.b-indigo{background:var(--accent)}
.ptl-badge.b-emerald{background:var(--emerald)}
.ptl-badge.b-gold{background:var(--gold)}
.ptl-badge.b-slate{background:#54617a}
.ptl-badge.b-red{background:var(--bad)}
.ptl-head{font-family:var(--serif);font-size:17px;font-weight:600;color:var(--navy);margin:1px 0 7px;letter-spacing:-.01em}
.ptl-gate{margin-top:9px;padding:8px 12px;border-radius:0 8px 8px 0;border-left:3px solid var(--emerald);
  background:var(--emerald-soft);font-size:12px;color:var(--slate);line-height:1.5}
.ptl-gate .g{font-weight:800;color:var(--emerald-d);text-transform:uppercase;letter-spacing:.05em;font-size:10px;margin-right:5px}
.ptl-gate.warn{border-left-color:var(--amber);background:var(--amber-soft)}
.ptl-gate.warn .g{color:var(--amber)}
.ptl-gate.gold{border-left-color:var(--gold);background:var(--gold-soft)}
.ptl-gate.gold .g{color:var(--gold)}
@media print{.ptl-stage{page-break-inside:avoid}}
@media(max-width:640px){.ptl-stage{padding-left:62px}.ptl-badge{width:48px}}

/* ---------- Cover (index) ---------- */
.cover-badge{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent-d);background:var(--accent-soft);
  padding:6px 13px;border-radius:30px;border:1px solid rgba(79,70,229,.16);margin-bottom:18px}
.cover-badge .g{width:7px;height:7px;border-radius:50%;background:var(--emerald);
  box-shadow:0 0 0 3px rgba(14,157,120,.18)}
h1.hero{font-size:46px;line-height:1.06}
.hero-rule{height:4px;width:72px;background:linear-gradient(90deg,var(--accent),var(--emerald));
  border-radius:3px;margin:20px 0 4px}
.cover{background:linear-gradient(180deg,var(--panel),#fff);border:1px solid var(--line);
  border-radius:16px;padding:34px 34px 30px;margin-bottom:6px;box-shadow:var(--shadow-sm)}
.cover .lead{margin-bottom:0}
.contents-h{display:flex;align-items:center;gap:14px;margin:38px 0 4px}
.contents-h span{font-family:var(--serif);font-size:22px;font-weight:600;color:var(--navy)}
.contents-h .line{flex:1;height:1px;background:var(--line-2)}
@media(max-width:860px){.cover{padding:22px 18px}}

/* ---------- Gantt ---------- */
.gantt{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:16px 0;box-shadow:var(--shadow-sm)}
.gantt .row{display:grid;grid-template-columns:150px 1fr;align-items:center;border-top:1px solid var(--line)}
.gantt .row:first-child{border-top:none}
.gantt .lbl{padding:10px 14px;font-size:12.5px;font-weight:600;background:var(--panel);border-right:1px solid var(--line)}
.gantt .track{position:relative;height:44px;background:repeating-linear-gradient(90deg,#fff,#fff 24.9%,var(--line) 25%,var(--line) 25.2%)}
.gantt .b{position:absolute;top:9px;height:26px;border-radius:6px;display:flex;align-items:center;
  padding:0 10px;font-size:10.5px;font-weight:700;color:#fff;white-space:nowrap;box-shadow:var(--shadow-sm)}
.gantt .b.poc{background:linear-gradient(90deg,var(--accent),var(--accent-d))}
.gantt .b.mvp{background:linear-gradient(90deg,var(--navy),#141136)}
.gantt .b.plat{background:linear-gradient(90deg,var(--emerald),var(--emerald-d))}
.gantt .head{grid-template-columns:150px 1fr}
.gantt .head .track{height:26px;background:#fff;display:flex}
.gantt .head .q{flex:1;font-size:10px;color:var(--muted);font-weight:600;text-align:center;
  border-left:1px solid var(--line);line-height:26px}

@media (max-width:860px){
  .sheet{margin:14px auto;padding:30px 20px;border-radius:0}
  .stats,.stats.c3,.stats.c2{grid-template-columns:repeat(2,1fr);gap:12px}
  .cols,.cols-3,.cardgrid,.cardgrid.c3,.fgrid,.fgrid.c2,.fgrid.c4{grid-template-columns:1fr;gap:16px}
  .layer{grid-template-columns:1fr}
  .layer .lname{flex-direction:row;justify-content:space-between;align-items:center}
  .docfoot{padding:0 20px;flex-direction:column;gap:2px}
  h1{font-size:30px}h1.hero{font-size:32px}
  h2{font-size:20px;margin-top:30px}
  .lead{font-size:16px}
  .topnav .inner{flex-wrap:wrap;gap:8px;padding:8px 16px;min-height:0}
  .topnav .links{width:100%;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;
    gap:14px;padding-bottom:6px;scrollbar-width:thin}
  .topnav a{flex:0 0 auto}
  table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:normal}
  thead,tbody{width:100%}
  .pager{flex-direction:column}
  .pager a.next{text-align:left}
  .pager a.empty{display:none}
  .gantt{overflow-x:auto}
  .gantt .row,.gantt .head{grid-template-columns:110px 1fr;min-width:520px}
  .gantt .lbl{padding:9px 10px;font-size:11.5px}
  figure svg{width:100%}
}
@media (max-width:440px){
  .sheet{padding:24px 15px}
  .stats,.stats.c3,.stats.c2{grid-template-columns:1fr}
  h1{font-size:26px}h1.hero{font-size:27px}
  .stat .v{font-size:26px}
}

/* ==========================================================================
   MOBILE HARDENING (defensive — keeps long tokens & diagrams in-bounds)
   ========================================================================== */
img,svg{max-width:100%}
body{overflow-wrap:break-word;word-break:normal}
.sources,.chip,code,td,dd{overflow-wrap:anywhere}
@media (max-width:520px){
  .fgrid.c4{grid-template-columns:1fr 1fr}
  .glossary .term{grid-template-columns:1fr;gap:4px}
  .diagram-wrap{padding:14px 10px}
  .diagram-wrap.tight{padding:10px}
  h1{font-size:25px}h1.hero{font-size:26px}
  .lead{font-size:15px}
  /* let wide diagrams pan horizontally instead of squashing text to unreadable */
  figure .diagram-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
  figure .diagram-wrap>svg{min-width:440px}
}

/* ==========================================================================
   PRINT
   ========================================================================== */
@media print{
  @page{size:A4;margin:15mm 13mm}
  html,body{background:#fff}
  .topnav,.pager,.noprint{display:none !important}
  .sheet{box-shadow:none;border-radius:0;margin:0;max-width:none;padding:0}
  .docfoot{padding:0}
  body{font-size:10.2pt;line-height:1.5}
  h1{font-size:26pt}h1.hero{font-size:28pt}
  h2{font-size:15pt;margin-top:20pt}
  h3{font-size:11.5pt}
  .lead{font-size:12pt}
  .stat .v{font-size:19pt}
  .navcard,.callout,.stat,.diagram-wrap,.fcard{box-shadow:none}
  table{box-shadow:none}
  *{-webkit-print-color-adjust:exact !important;print-color-adjust:exact !important}
  table,figure,.callout,.phase,.navcard,.stat,.diagram-wrap,.gantt,.stack,.fcard,.layer{page-break-inside:avoid}
  h1,h2,h3{page-break-after:avoid}
  thead{display:table-header-group}
  a.ref,.sources a{color:var(--accent);text-decoration:none}
  .sheet{page-break-after:always}
}