/* pm-portfolio · shared design system
   Independent, finance-credible editorial style. No external dependencies.
   Tuned for large desktop monitors and mobile alike. */

:root{
  /* color */
  --ink:#11161d;
  --ink-soft:#39424d;
  --muted:#6b7680;
  --faint:#9aa3ab;
  --line:#e7e9e4;
  --line-soft:#eef0ec;
  --paper:#fbfbf8;
  --surface:#ffffff;
  --surface-2:#f5f6f2;
  --accent:#0e6b54;        /* deep emerald */
  --accent-ink:#0a5340;
  --accent-soft:#e6f2ec;
  --gold:#9a7b3f;          /* restrained warm secondary */
  --gold-soft:#f3ecdd;
  --danger:#9a3b2f;
  /* type */
  --serif:"Charter","Iowan Old Style","Palatino Linotype",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
  /* shape */
  --r:16px;
  --r-sm:11px;
  --shadow:0 1px 2px rgba(17,22,29,.04),0 10px 34px rgba(17,22,29,.07);
  --shadow-sm:0 1px 2px rgba(17,22,29,.05),0 4px 14px rgba(17,22,29,.05);
  --maxw:1180px;
  --wide:1340px;
  --readw:780px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-ink)}

/* layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
.wrap.wide{max-width:var(--wide)}
.read{max-width:var(--readw)}
.section{padding-top:80px;padding-bottom:80px}
.section--tight{padding-top:48px;padding-bottom:48px}
.hr{height:1px;background:var(--line);border:0;margin:0}
@media(max-width:760px){
  .wrap{padding:0 20px}
  .section{padding-top:52px;padding-bottom:52px}
  .section--tight{padding-top:34px;padding-bottom:34px}
}
/* touch ergonomics */
@media(pointer:coarse){
  .btn{padding:14px 22px}
  .chip{padding:8px 15px}
  .navlinks a{padding:8px 2px}
}

/* type scale */
.eyebrow{font-family:var(--sans);font-size:12.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--accent);margin:0 0 16px}
.eyebrow.gold{color:var(--gold)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.14;color:var(--ink);letter-spacing:-.012em}
h1{font-size:clamp(38px,5.4vw,62px);margin:0 0 20px}
h2{font-size:clamp(28px,3.6vw,40px);margin:0 0 16px}
h3{font-size:22px;margin:0 0 8px}
h4{font-size:17px;margin:0 0 6px}
p{margin:0 0 18px;color:var(--ink-soft)}
.lede{font-family:var(--serif);font-size:clamp(20px,2.3vw,26px);line-height:1.5;color:var(--ink);font-weight:400}
.muted{color:var(--muted)}
.small{font-size:14px}
.kicker{font-size:13.5px;font-weight:600;letter-spacing:.02em;color:var(--muted)}
strong{color:var(--ink);font-weight:650}

/* buttons */
.btns{display:flex;gap:13px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-size:15px;font-weight:600;
  padding:13px 22px;border-radius:var(--r-sm);text-decoration:none;border:1px solid transparent;transition:.15s;cursor:pointer}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-ink);color:#fff}
.btn.ghost{background:var(--accent-soft);color:var(--accent-ink)}
.btn.ghost:hover{background:#d8ebe2}
.btn.line{background:transparent;border-color:var(--line);color:var(--ink)}
.btn.line:hover{border-color:var(--accent);color:var(--accent-ink)}

/* cards + grids */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--shadow-sm)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.g2,.g3,.g4{grid-template-columns:1fr}.card{padding:22px}}

/* chips */
.chips{display:flex;gap:9px;flex-wrap:wrap}
.chip{display:inline-block;font-size:13px;font-weight:600;color:var(--ink-soft);
  background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:6px 14px}
.chip.accent{background:var(--accent-soft);border-color:#cfe6dc;color:var(--accent-ink)}

/* site header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,251,248,.82);
  backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line-soft)}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-family:var(--serif);font-weight:600;font-size:18px;color:var(--ink);letter-spacing:-.01em}
.brand a{color:inherit}
.brand .dot{color:var(--accent)}
.navlinks{display:flex;gap:22px;align-items:center}
.navlinks a{font-size:14.5px;font-weight:550;color:var(--ink-soft)}
.navlinks a:hover{color:var(--accent-ink)}
@media(max-width:640px){.navlinks{gap:14px}.navlinks .hide-sm{display:none}}

/* disclaimer banner */
.disclaimer{font-size:13px;color:var(--muted);background:var(--surface-2);
  border:1px solid var(--line);border-radius:var(--r-sm);padding:13px 16px;line-height:1.55}

/* collapsible disclaimer */
details.disc-c{font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface-2);padding:0}
details.disc-c summary{cursor:pointer;padding:11px 16px;font-weight:600;color:var(--ink-soft);list-style:none}
details.disc-c summary::-webkit-details-marker{display:none}
details.disc-c summary::before{content:"+ ";color:var(--accent);font-weight:700}
details.disc-c[open] summary::before{content:"– "}
details.disc-c .body{padding:0 16px 13px;line-height:1.55}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:8px;background:var(--surface)}
.site-footer .wrap{padding-top:40px;padding-bottom:48px}
.site-footer p{font-size:14px;color:var(--muted);margin:0 0 6px}

/* reveal on scroll (progressive enhancement: content is hidden only when JS is active,
   so if scripts fail on any device the page still shows everything) */
.reveal{opacity:1}
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}

/* reading progress */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:60;transition:width .1s linear}

/* side scroll-spy dot nav (desktop) */
.dotnav{position:fixed;right:30px;top:50%;transform:translateY(-50%);z-index:45;display:flex;flex-direction:column;gap:16px}
.dotnav a{display:flex;align-items:center;gap:10px;justify-content:flex-end;color:var(--muted);font-size:12.5px;font-weight:600}
.dotnav a .lab{opacity:0;transform:translateX(6px);transition:.18s;white-space:nowrap;background:var(--ink);color:#fff;padding:3px 9px;border-radius:6px;font-size:11.5px}
.dotnav a .dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--faint);background:transparent;transition:.18s;flex:0 0 10px}
.dotnav a:hover .lab{opacity:1;transform:none}
.dotnav a.active .dot{background:var(--accent);border-color:var(--accent);transform:scale(1.3)}
.dotnav a.active{color:var(--accent-ink)}
@media(max-width:1200px){.dotnav{display:none}}