/* PM Master Handbook — shared styles (site + print/PDF). */
:root{
  --navy:#101828; --blue:#2563EB; --violet:#7C3AED; --green:#10B981;
  --bg:#FFFFFF; --bg2:#F8FAFC; --surface:#FFFFFF; --ink:#101828; --ink2:#344054; --muted:#667085;
  --line:#E4E7EC; --grid:#E4E7EC; --accent:var(--blue);
  --c1:#2563EB; --c2:#7C3AED; --c3:#D97706; --c4:#059669; --c5:#DB2777; --c6:#64748B;
  --warn:#B54708; --ok-bg:#ECFDF3; --info-bg:#EFF6FF; --warn-bg:#FFFAEB; --bad-bg:#FEF3F2; --vio-bg:#F5F3FF;
  --font:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono","Cascadia Code",Consolas,"SFMono-Regular",monospace;
  --sidebar:288px; --radius:12px; --shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
}
:root[data-theme="dark"]{
  --bg:#0B1220; --bg2:#101828; --surface:#152033; --ink:#F2F4F7; --ink2:#D0D5DD; --muted:#98A2B3;
  --line:#263248; --grid:#263248; --accent:#6C9BFF;
  --c1:#5B8DFF; --c2:#A78BFA; --c3:#FBBF24; --c4:#34D399; --c5:#F472B6; --c6:#94A3B8;
  --warn:#FDB022; --ok-bg:#0F2A22; --info-bg:#0F1E3D; --warn-bg:#2B2210; --bad-bg:#2D1514; --vio-bg:#1E1738;
  --shadow:0 1px 2px rgba(0,0,0,.4);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0B1220; --bg2:#101828; --surface:#152033; --ink:#F2F4F7; --ink2:#D0D5DD; --muted:#98A2B3;
    --line:#263248; --grid:#263248; --accent:#6C9BFF;
    --c1:#5B8DFF; --c2:#A78BFA; --c3:#FBBF24; --c4:#34D399; --c5:#F472B6; --c6:#94A3B8;
    --warn:#FDB022; --ok-bg:#0F2A22; --info-bg:#0F1E3D; --warn-bg:#2B2210; --bad-bg:#2D1514; --vio-bg:#1E1738;
    --shadow:0 1px 2px rgba(0,0,0,.4);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:2px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--violet);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);letter-spacing:-.01em}
h1{font-size:2.1rem;margin:0 0 .4em}
h2{font-size:1.5rem;margin:2.2em 0 .6em;padding-top:.6em;border-top:1px solid var(--line)}
h3{font-size:1.2rem;margin:1.8em 0 .5em}
h4{font-size:1rem;margin:1.4em 0 .4em;color:var(--ink2);text-transform:uppercase;letter-spacing:.04em;font-size:.82rem}
p,li{max-width:78ch}
code{font-family:var(--mono);font-size:.88em;background:var(--bg2);padding:.12em .38em;border-radius:5px;border:1px solid var(--line)}
pre{background:#0B1220;color:#E6EDF7;padding:14px 16px;border-radius:10px;overflow:auto;font:13px/1.55 var(--mono);border:1px solid var(--line)}
pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit}
blockquote{margin:1em 0;padding:.4em 1em;border-left:4px solid var(--violet);background:var(--vio-bg);border-radius:0 8px 8px 0}
hr{border:0;border-top:1px solid var(--line);margin:2em 0}
table{border-collapse:collapse;width:100%;font-size:.92rem;margin:1em 0}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--bg2);font-weight:650}
tbody tr:nth-child(even) td{background:color-mix(in srgb,var(--bg2) 55%,transparent)}
.tablewrap,.md-table{overflow-x:auto}
.formula{white-space:pre-wrap;font-family:var(--mono);background:var(--bg2);border:1px solid var(--line);border-left:4px solid var(--violet);padding:10px 14px;border-radius:8px;margin:1em 0;overflow-x:auto}

/* ---------- layout ---------- */
.topbar{position:sticky;top:0;z-index:50;display:flex;gap:12px;align-items:center;padding:10px 20px;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar .brand{font-weight:750;color:var(--ink);text-decoration:none;display:flex;gap:8px;align-items:center;white-space:nowrap}
.brand .logo{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--blue),var(--violet));display:inline-block}
.searchbox{flex:1;max-width:520px;position:relative}
.searchbox input{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink);font:inherit;font-size:.92rem}
.results{position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 28px rgba(16,24,40,.18);max-height:60vh;overflow:auto;display:none;z-index:60}
.results.on{display:block}
.results a{display:block;padding:9px 12px;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--line)}
.results a:hover,.results a:focus{background:var(--bg2)}
.results small{color:var(--muted);display:block}
.results mark{background:color-mix(in srgb,var(--violet) 25%,transparent);color:inherit;border-radius:3px}
.iconbtn{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:9px;padding:8px 11px;cursor:pointer;font:inherit;font-size:.88rem}
.iconbtn:hover{background:var(--bg2)}
.menu-toggle{display:none}
.shell{display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr);min-height:calc(100vh - 56px)}
.sidebar{position:sticky;top:56px;align-self:start;height:calc(100vh - 56px);overflow:auto;padding:16px 14px 40px;border-right:1px solid var(--line);background:var(--bg2);font-size:.9rem}
.sidebar h5{margin:18px 8px 6px;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.sidebar a{display:flex;gap:9px;align-items:center;padding:7px 9px;border-radius:8px;color:var(--ink2);text-decoration:none;line-height:1.3}
.sidebar a:hover{background:var(--surface)}
.sidebar a[aria-current="page"]{background:var(--surface);color:var(--ink);font-weight:650;box-shadow:var(--shadow)}
.sidebar .num{flex:none;width:24px;height:24px;border-radius:7px;background:var(--line);color:var(--ink2);font-size:.75rem;font-weight:700;display:grid;place-items:center}
.sidebar a.done .num{background:#047857;color:#fff}
.main{padding:28px clamp(16px,4vw,56px) 80px;min-width:0}
.article{max-width:880px;margin:0 auto}
.page-head{margin-bottom:24px;padding:26px 28px;border-radius:16px;color:#fff;background:linear-gradient(135deg,var(--navy) 0%,#1d3a8a 55%,var(--violet) 130%)}
.page-head h1{color:#fff;margin:6px 0 6px}
.page-head p{color:#D6E0FF;margin:0;max-width:70ch}
.page-head .kicker{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:#B8C7FF;font-weight:650}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:99px;padding:3px 11px;font-size:.8rem}
.pagetoc{margin:0 0 28px;padding:14px 18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg2)}
.pagetoc summary{cursor:pointer;font-weight:650}
.pagetoc ol{columns:2;column-gap:28px;margin:.6em 0 0;padding-left:1.2em;font-size:.92rem}
.pagetoc li{break-inside:avoid;margin:.15em 0}
.modnav{display:flex;justify-content:space-between;gap:12px;margin-top:48px}
.modnav a{flex:1;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;text-decoration:none;color:var(--ink);background:var(--surface)}
.modnav a:hover{border-color:var(--accent)}
.modnav small{display:block;color:var(--muted)}
.modnav a:last-child{text-align:right}
.totop{position:fixed;right:18px;bottom:18px;display:none;z-index:40}
.totop.on{display:block}
.progressbar{height:6px;border-radius:99px;background:var(--line);overflow:hidden}
.progressbar>i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--violet));width:0}

/* ---------- callouts ---------- */
.admonition{margin:1.3em 0;padding:12px 16px 12px;border-radius:var(--radius);border:1px solid var(--line);border-left:5px solid var(--blue);background:var(--info-bg);break-inside:avoid-page}
.admonition>p{margin:.45em 0}
.admonition-title{font-weight:700;margin:0 0 .35em !important;color:var(--ink)}
.admonition.tip,.admonition.success{border-left-color:var(--green);background:var(--ok-bg)}
.admonition.warning,.admonition.caution{border-left-color:var(--c3);background:var(--warn-bg)}
.admonition.danger,.admonition.failure,.admonition.bug{border-left-color:#EF4444;background:var(--bad-bg)}
.admonition.example{border-left-color:var(--violet);background:var(--vio-bg)}
.admonition.abstract,.admonition.summary{border-left-color:var(--navy);background:var(--bg2)}
.admonition.question{border-left-color:var(--c5)}
.admonition.level1,.admonition.level2,.admonition.level3{background:var(--surface)}
.admonition.level1{border-left-color:var(--green)}
.admonition.level2{border-left-color:var(--blue)}
.admonition.level3{border-left-color:var(--violet)}
.admonition.source{border-left-color:var(--c6);background:var(--bg2);font-size:.92rem}
.admonition.hypo{border-left-color:var(--c3);background:var(--warn-bg)}
details{margin:1em 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
details>summary{cursor:pointer;padding:11px 16px;font-weight:650;list-style-position:inside}
details[open]>summary{border-bottom:1px solid var(--line)}
details>*:not(summary){margin-left:16px;margin-right:16px}
details>p:last-child,details>ul:last-child{margin-bottom:14px}
details.question>summary,details.answer>summary{color:var(--ink)}
details.answer{border-left:5px solid var(--green)}
details.question{border-left:5px solid var(--c5)}
details.note,details.info{border-left:5px solid var(--blue)}

/* ---------- figures ---------- */
figure.viz{margin:1.6em 0;padding:14px 12px 10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);break-inside:avoid-page}
figure.viz svg{width:100%;height:auto;display:block}
figure.viz figcaption{font-size:.86rem;color:var(--muted);margin-top:8px;padding:0 6px}
svg text{font-family:var(--font);fill:var(--ink);font-size:12.5px}
svg text.small{font-size:11.5px} svg text.tiny{font-size:10.5px}
svg text.b{font-weight:700} svg text.mut{fill:var(--muted)} svg text.warn{fill:var(--warn)}
svg text.on-fill{fill:#fff} svg text.quad{fill:var(--muted);font-size:11px;font-style:italic}
svg .grid{stroke:var(--grid);stroke-width:1} svg .grid.dash{stroke-dasharray:4 4}
svg .axis{stroke:var(--muted);stroke-width:1.2}
svg .plot{fill:var(--bg2);stroke:var(--line)}
svg .node{fill:var(--bg2);stroke:var(--line);stroke-width:1.5} svg .node.hl{fill:color-mix(in srgb,var(--c1) 14%,var(--surface));stroke:var(--c1)}
svg .edge{stroke:var(--muted);stroke-width:1.6;fill:none} svg .arrowhead{fill:var(--muted)}
svg .reject{fill:var(--c3);fill-opacity:.4}
svg .empty{fill:var(--bg2);stroke:var(--line);stroke-dasharray:3 3}
svg .phone{fill:var(--surface);stroke:var(--ink2);stroke-width:2.2}
svg .wf-bar{fill:var(--bg2);stroke:var(--line)} svg .wf-img{fill:var(--bg2);stroke:var(--line);stroke-dasharray:4 3}
svg .wf-input{fill:var(--surface);stroke:var(--muted)} svg .wf-warn{fill:var(--warn-bg);stroke:var(--c3)}

.canvas{display:grid;gap:8px}
.canvas .cv{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--bg2);font-size:.86rem;min-width:0}
.canvas .cv h5{margin:0 0 4px;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink)}
.canvas .cv p,.canvas .cv ul{margin:0;color:var(--ink2);max-width:none}
.canvas .cv ul{padding-left:1.1em}
.canvas .cv li{margin:.12em 0;max-width:none}
.canvas .tone-b{background:var(--info-bg);border-color:var(--c1)}
.canvas .tone-v{background:var(--vio-bg);border-color:var(--c2)}
.canvas .tone-g{background:var(--ok-bg);border-color:var(--c4)}
.canvas .tone-w{background:var(--warn-bg);border-color:var(--c3)}
.canvas .tone-r{background:var(--bad-bg);border-color:#EF4444}

/* ---------- quiz ---------- */
.quiz{margin:1.6em 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:6px 18px 14px}
.quiz>h4{margin:.9em 0 0}
.qitem{padding:12px 0;border-bottom:1px solid var(--line)}
.qitem:last-of-type{border-bottom:0}
.qitem p.q{font-weight:650;margin:.2em 0 .5em}
.qitem ol{list-style:upper-alpha;padding-left:1.8em;margin:0}
.qitem li{margin:.3em 0;cursor:pointer;padding:3px 8px;border-radius:7px}
.qitem li:hover{background:var(--bg2)}
.qitem li.picked{outline:2px solid var(--blue)}
.qitem li.right{background:var(--ok-bg);outline:2px solid var(--green)}
.qitem li.wrong{background:var(--bad-bg);outline:2px solid #EF4444}
.qitem .why{display:none;margin-top:8px;font-size:.92rem;color:var(--ink2)}
.qitem.answered .why{display:block}
.quizscore{font-weight:650;margin-top:8px}

/* ---------- cards / collections ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin:18px 0}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:16px;background:var(--surface);box-shadow:var(--shadow);text-decoration:none;color:var(--ink);display:block}
.card:hover{border-color:var(--accent)}
.card h3{margin:.2em 0 .3em;font-size:1.05rem}
.card p{margin:.2em 0;color:var(--ink2);font-size:.9rem}
.card .meta{font-size:.78rem;color:var(--muted);margin-top:8px}
.tag{display:inline-block;font-size:.72rem;padding:2px 9px;border-radius:99px;background:var(--vio-bg);color:var(--violet);font-weight:650;margin-right:6px}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 20px}
.filters button{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:6px 13px;border-radius:99px;cursor:pointer;font:inherit;font-size:.86rem}
.filters button[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.item{scroll-margin-top:76px}
.item.hide{display:none}
.coll-item{margin:0 0 28px;padding:0 0 12px}
.coll-item>h2{margin-top:1.4em}
.glossary dt{font-weight:700;margin-top:1em}
.glossary dd{margin:.2em 0 0 0;color:var(--ink2);max-width:78ch}
.glossary .term.hide{display:none}
.donebtn[aria-pressed="true"]{background:#047857;border-color:#047857;color:#fff}
.hero{padding:34px 30px;border-radius:18px;color:#fff;background:linear-gradient(135deg,var(--navy),#1d3a8a 60%,var(--violet) 140%)}
.hero h1{color:#fff;font-size:2.4rem}.hero p{color:#D6E0FF;max-width:62ch}
.hero a{color:#fff;font-weight:650}
.stat{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:18px}
.stat div{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);padding:10px 14px;border-radius:12px}
.stat b{display:block;font-size:1.5rem}
.todo-banner{border:1px dashed var(--c3);background:var(--warn-bg);padding:10px 14px;border-radius:10px;font-size:.9rem}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .shell{grid-template-columns:1fr}
  .topbar{z-index:60}
  .sidebar{position:fixed;left:0;top:0;padding-top:76px;bottom:0;width:min(86vw,320px);z-index:55;transform:translateX(-102%);transition:transform .2s;height:auto;box-shadow:8px 0 28px rgba(0,0,0,.2)}
  .sidebar.open{transform:none}
  .menu-toggle{display:inline-block}
  .pagetoc ol{columns:1}
  h1{font-size:1.7rem}
  .topbar{padding:8px 12px}
  .brand span.t{display:none}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.sidebar{transition:none}}

/* ---------- print / PDF ---------- */
@page{size:A4;margin:18mm 16mm 20mm 16mm}
@media print{
  :root{--bg:#fff;--bg2:#F8FAFC;--surface:#fff;--ink:#101828;--ink2:#344054;--muted:#475467;--line:#D0D5DD;--grid:#E4E7EC;
        --c1:#2563EB;--c2:#7C3AED;--c3:#D97706;--c4:#059669;--c5:#DB2777;--c6:#64748B;--info-bg:#EFF6FF;--ok-bg:#ECFDF3;--warn-bg:#FFFAEB;--bad-bg:#FEF3F2;--vio-bg:#F5F3FF;--warn:#B54708}
  body{font-size:10.5pt;line-height:1.5;background:#fff;color:#101828;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .topbar,.sidebar,.totop,.modnav,.filters,.donebtn,.searchbox,.menu-toggle,.noprint{display:none !important}
  .shell{display:block}.main{padding:0}.article{max-width:none}
  .page-head{padding:18px 22px;break-inside:avoid}
  h1,h2,h3,h4{break-after:avoid}
  h2{margin-top:1.6em}
  figure,table,pre,.admonition,.quiz,details,.formula{break-inside:avoid}
  tr{break-inside:avoid}
  details{border:1px solid var(--line)}
  details>summary{list-style:none}
  details>summary::-webkit-details-marker{display:none}
  a{color:inherit;text-decoration:none}
  .article a[href^="http"]{color:#1d4ed8;text-decoration:underline}
  .qitem .why{display:block !important}
  .qitem li{cursor:default}
  .qitem li.is-correct{background:var(--ok-bg);outline:1.5px solid var(--green)}
  .pagetoc{display:none}
  .item.hide{display:block !important}
}
.print .module-start{break-before:page}
.print .page-head{margin-top:0}
.cover{height:calc(297mm - 38mm);display:flex;flex-direction:column;justify-content:space-between;break-after:page;padding:14mm 4mm;background:linear-gradient(160deg,var(--navy) 0%,#1d3a8a 60%,var(--violet) 135%);color:#fff;border-radius:6px}
.cover h1{font-size:34pt;color:#fff;line-height:1.1;margin:0}
.cover .sub{font-size:14pt;color:#D6E0FF;margin-top:10pt}
.cover .meta{font-size:10pt;color:#C7D2FE}
.cover .stripe{height:6px;width:120px;background:linear-gradient(90deg,var(--green),#6EE7B7);border-radius:99px;margin-bottom:18pt}
.toc-page{break-after:page}
.toc-page h1{margin-bottom:12pt}
.toc-list{list-style:none;padding:0;margin:0;font-size:10pt}
.toc-list li{display:flex;gap:8px;align-items:baseline;margin:2px 0;max-width:none}
.toc-list li.l1{font-weight:700;margin-top:9px;font-size:11pt}
.toc-list li.l2{padding-left:18px;color:var(--ink2)}
.toc-list .dots{flex:1;border-bottom:1px dotted var(--muted);transform:translateY(-3px)}
.toc-list .pg{min-width:2.2em;text-align:right;font-variant-numeric:tabular-nums}
.toc-list a{color:inherit;text-decoration:none}