/* ============================================================
   Portfolio. Kutty Stauder as an AI product and program leader,
   on the site's ground: night, gold, parchment, the Fell serifs.
   A portrait at the centre of an orbit of disciplines, the
   numbers, four pillars, live case studies in browser frames,
   a real release log, the career, the shelf and the roadmap.
   Scoped to #page-portfolio.
   ============================================================ */

#page-portfolio {
  --pf-wide: min(var(--shell), 100% - 2 * var(--gutter));
  --pf-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --pf-card: linear-gradient(180deg, rgb(201 169 97 / .06), rgb(201 169 97 / .015));
  overflow-x: clip;
  padding-bottom: var(--section-space);
}
#page-portfolio em { color: var(--gold); font-style: italic; }
#page-portfolio h1,
#page-portfolio h2,
#page-portfolio h3 { font-family: var(--serif-display); font-weight: 400; color: var(--parchment); letter-spacing: .005em; }
#page-portfolio h2 { font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.06; margin: 0 0 1rem; text-wrap: balance; }
#page-portfolio h3 { line-height: 1.15; }
#page-portfolio a:not(.button) { color: var(--gold); text-decoration-color: var(--gold-a35); text-underline-offset: .18em; }
#page-portfolio a:not(.button):hover { color: var(--gold-bright); text-decoration-color: currentColor; }
#page-portfolio ul { list-style: none; margin: 0; padding: 0; }

#page-portfolio .pf-eyebrow,
#page-portfolio .pf-kicker {
  margin: 0 0 .9rem;
  font-family: var(--serif-head);
  font-size: var(--t-label);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}
.pf-progress {
  position: fixed; inset: var(--header-height) 0 auto 0; height: 2px; z-index: 40;
  transform-origin: 0 50%; transform: scaleX(var(--pf-p, 0));
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  pointer-events: none;
}

/* ---------- Hero ---------- */
.pf-hero {
  width: var(--pf-wide); margin: 0 auto;
  min-height: min(880px, calc(100svh - var(--header-height)));
  display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  align-items: center; gap: clamp(2rem, 5vw, 5rem);
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(2rem, 4vw, 3.5rem);
}
.pf-hero h1 { font-size: var(--t-display); line-height: .98; margin: 0 0 1.6rem; text-wrap: balance; }
.pf-hero h1 em { display: inline-block; }
.pf-lead { max-width: var(--measure-lead); margin: 0 0 2.2rem; font-size: var(--t-read); line-height: 1.6; color: var(--ink); }
.pf-actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.pf-actions-center { justify-content: center; }
.pf-open { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem; margin: 2rem 0 0; font-size: var(--fs-small); color: var(--ink-soft); }
.pf-open > span:not(.pf-dot) { margin-right: .3rem; letter-spacing: .14em; text-transform: uppercase; }
.pf-open b { font-weight: 400; padding: .22rem .7rem; border: 1px solid var(--gold-a35); border-radius: 999px; color: var(--parchment); }
.pf-dot {
  flex: none; width: .55rem; height: .55rem; border-radius: 50%; transform: translateY(-.05rem);
  background: #8fcf9a; box-shadow: 0 0 0 0 rgb(143 207 154 / .6); animation: pf-pulse 2.4s var(--ease) infinite;
}
@keyframes pf-pulse { 0% { box-shadow: 0 0 0 0 rgb(143 207 154 / .55); } 70%, 100% { box-shadow: 0 0 0 .55rem rgb(143 207 154 / 0); } }

.pf-hero-figure { margin: 0; display: grid; justify-items: center; gap: 1.2rem; }
.pf-hero-figure figcaption { font-size: var(--fs-small); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); text-align: center; }
.pf-orbit-wrap {
  --r1: 150px; --r2: 216px; --size: 500px;
  position: relative; width: var(--size); height: var(--size); max-width: 100%;
  display: grid; place-items: center;
}
.pf-ring { position: absolute; left: 50%; top: 50%; border-radius: 50%; translate: -50% -50%; border: 1px solid var(--gold-a18); }
.pf-ring-a { width: calc(var(--r1) * 2); height: calc(var(--r1) * 2); border-style: dashed; border-color: var(--gold-a35); }
.pf-ring-b { width: calc(var(--r2) * 2); height: calc(var(--r2) * 2); box-shadow: 0 0 80px -20px rgb(212 175 55 / .25), inset 0 0 60px -30px rgb(212 175 55 / .3); }
.pf-orbit { position: absolute; inset: 0; animation: pf-spin 90s linear infinite; }
.pf-node { position: absolute; left: 50%; top: 50%; width: 0; height: 0; z-index: 2; }
.pf-node span {
  position: absolute; display: block; white-space: nowrap;
  translate: -50% -50%;
  padding: .32rem .7rem; border: 1px solid var(--gold-a35); border-radius: 999px;
  background: rgb(13 10 6 / .88); box-shadow: 0 6px 18px -8px rgb(0 0 0 / .9), var(--edge-light);
  font-family: var(--serif-head); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--parchment);
  animation: pf-spin 90s linear infinite reverse;
}
.pf-ring-1 { transform: rotate(var(--a)) translateX(var(--r1)) rotate(calc(-1 * var(--a))); }
.pf-ring-2 { transform: rotate(var(--a)) translateX(var(--r2)) rotate(calc(-1 * var(--a))); }
.pf-ring-1 span { color: var(--gold-bright); border-color: var(--gold-a60); }
.pf-orbit-wrap:hover .pf-orbit,
.pf-orbit-wrap:hover .pf-node span { animation-play-state: paused; }
@keyframes pf-spin { to { rotate: 360deg; } }
.pf-portrait {
  position: relative; z-index: 1; width: 230px; aspect-ratio: 1; border-radius: 50%; padding: 6px;
  background: conic-gradient(from 210deg, #74571d, #f4e4c1, #c9a961, #8a6c28, #d4af37, #74571d);
  box-shadow: 0 0 0 1px rgb(0 0 0 / .6), 0 0 90px -10px rgb(212 175 55 / .45), 0 30px 60px -30px #000;
}
.pf-portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; border-radius: 50%; display: block; filter: saturate(.92) contrast(1.03); }

/* ---------- Stats ---------- */
.pf-stats { width: var(--pf-wide); margin: 0 auto; border-block: 1px solid var(--hairline); }
.pf-stats ul { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.pf-stats li { padding: clamp(1.4rem, 2.6vw, 2.2rem) clamp(.9rem, 2vw, 1.6rem); border-inline-start: 1px solid var(--hairline); }
.pf-stats li:nth-child(4n + 1) { border-inline-start: 0; }
.pf-stats li:nth-child(n + 5) { border-top: 1px solid var(--hairline); }
.pf-stats strong {
  display: block; font-family: var(--serif-body); font-weight: 500; font-size: clamp(2.3rem, 4.4vw, 3.6rem); line-height: 1;
  color: var(--gold-bright); font-variant-numeric: lining-nums; font-feature-settings: "lnum" 1; margin-bottom: .55rem;
  background: linear-gradient(180deg, #fbf1d6, #d4af37 60%, #a9842f); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.pf-stats span { display: block; font-size: var(--fs-small); line-height: 1.45; color: var(--ink-soft); max-width: 24ch; }

/* ---------- Sections ---------- */
.pf-section { width: var(--pf-wide); margin: 0 auto; padding-top: var(--section-space); }
.pf-head { max-width: 760px; margin-bottom: clamp(2rem, 4vw, 3rem); }
.pf-head > p:last-child:not(.pf-eyebrow) { margin: 0; max-width: var(--measure-lead); font-size: var(--t-read); line-height: 1.6; color: var(--ink); }
.pf-num { font-family: var(--serif-display); font-size: 1rem; letter-spacing: .12em; color: var(--gold); }

.pf-pillars { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; }
.pf-pillar {
  position: relative; padding: clamp(1.5rem, 3vw, 2.3rem); border: 1px solid var(--hairline); border-radius: var(--radius);
  background: var(--pf-card); box-shadow: var(--edge-light);
  transition: border-color var(--t-med) var(--ease), translate var(--t-med) var(--ease);
}
.pf-pillar:hover { border-color: var(--gold-a35); translate: 0 -3px; }
.pf-pillar h3 { font-size: var(--t-h3); margin: .6rem 0 .3rem; }
.pf-pillar-line { margin: 0 0 1.1rem; font-style: italic; color: var(--gold); font-size: 1.12rem; }
.pf-pillar li, .pf-case li { position: relative; padding-left: 1.3rem; margin: 0 0 .6rem; line-height: 1.55; color: var(--ink); }
.pf-pillar li::before, .pf-case li::before { content: ""; position: absolute; left: 0; top: .62em; width: .5rem; height: 1px; background: var(--gold); }

/* ---------- Work ---------- */
.pf-filters { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0 0 2.2rem; }
.pf-filters button {
  min-height: 40px; padding: .45rem 1rem; border: 1px solid var(--gold-a35); border-radius: 999px; background: transparent;
  font: inherit; font-size: .95rem; color: var(--ink); cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.pf-filters button:hover { border-color: var(--gold); color: var(--parchment); }
.pf-filters button[aria-pressed="true"] { background: var(--gold); border-color: var(--gold); color: #1a1208; }
.pf-filters button:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 2px; }

.pf-cases { display: grid; gap: clamp(3rem, 6vw, 5rem); }
.pf-case { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(1.6rem, 4vw, 3.5rem); align-items: center; }
.pf-case:nth-child(even) .pf-case-media { order: 2; }
.pf-case h3 { font-size: clamp(1.9rem, 3vw, 2.5rem); margin: 0 0 .5rem; }
.pf-case-line { margin: 0 0 1.2rem; font-size: 1.2rem; line-height: 1.5; color: var(--parchment-dim); font-style: italic; }
.pf-kicker span { margin-right: .7rem; color: var(--parchment-dim); }
.pf-outcome { margin: 1.1rem 0 .6rem; padding: .85rem 1rem; border-left: 2px solid var(--gold); background: var(--gold-a04); line-height: 1.5; }
.pf-outcome strong { display: block; font-family: var(--serif-head); font-weight: 400; font-size: var(--t-label); letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin-bottom: .2rem; }
.pf-stack { margin: 0 0 1rem; font-family: var(--pf-mono); font-size: .78rem; line-height: 1.6; letter-spacing: .02em; color: var(--ink-soft); }
.pf-link { font-family: var(--serif-head); font-size: 1.05rem; text-decoration: none !important; }
.pf-link span { display: inline-block; transition: translate var(--t-fast) var(--ease); }
.pf-link:hover span { translate: 4px 0; }

.pf-frame {
  border: 1px solid var(--gold-a35); border-radius: 8px; overflow: hidden; background: #0a0805;
  box-shadow: 0 40px 80px -40px #000, 0 0 0 1px rgb(0 0 0 / .5), 0 0 120px -50px rgb(212 175 55 / .35);
  transition: translate var(--t-slow) var(--ease), box-shadow var(--t-slow) var(--ease);
}
.pf-case:hover .pf-frame { translate: 0 -4px; box-shadow: 0 50px 90px -40px #000, 0 0 0 1px rgb(0 0 0 / .5), 0 0 140px -40px rgb(212 175 55 / .45); }
.pf-frame-bar { display: flex; gap: 6px; padding: 9px 12px; border-bottom: 1px solid var(--gold-a18); background: #15100a; }
.pf-frame-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--gold-a35); }
.pf-frame img { display: block; width: 100%; height: auto; }

.pf-subhead { margin: clamp(3.5rem, 6vw, 5rem) 0 1.5rem; font-size: var(--t-h3); }
.pf-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 265px), 1fr)); gap: 1rem; }
.pf-card {
  position: relative; display: flex; flex-direction: column; padding: 1.3rem 1.3rem 1.5rem;
  border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--pf-card);
  text-decoration: none !important; color: var(--ink) !important;
  transition: border-color var(--t-med) var(--ease), translate var(--t-med) var(--ease), background var(--t-med) var(--ease);
}
.pf-card:hover { border-color: var(--gold-a60); translate: 0 -4px; background: linear-gradient(180deg, rgb(201 169 97 / .1), rgb(201 169 97 / .02)); }
.pf-card:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 3px; }
.pf-card-art { height: 150px; overflow: hidden; display: grid; place-items: center; margin-bottom: 1rem; background: radial-gradient(closest-side, rgb(212 175 55 / .16), transparent); }
#page-portfolio .pf-art { display: block; width: auto; height: 100%; max-height: 100%; max-width: 100%; object-fit: contain; filter: drop-shadow(0 14px 18px rgb(0 0 0 / .6)); transition: scale var(--t-slow) var(--ease); }
.pf-card:hover .pf-art { scale: 1.06; }
.pf-card .pf-kicker { margin-bottom: .4rem; font-size: .7rem; }
.pf-card h3 { font-size: 1.4rem; margin: 0 0 .5rem; }
.pf-card p:not(.pf-kicker) { margin: 0; line-height: 1.5; font-size: 1.02rem; color: var(--ink-soft); }
.pf-card-go { position: absolute; top: 1rem; right: 1.1rem; color: var(--gold); font-size: 1.1rem; transition: translate var(--t-fast) var(--ease); }
.pf-card:hover .pf-card-go { translate: 3px -3px; }
[data-tags].pf-hide { display: none !important; }
.pf-empty { margin: 1rem 0 0; color: var(--ink-soft); }

/* ---------- Method ---------- */
.pf-method-body { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.pf-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
.pf-steps li { padding: 1.4rem; background: var(--bg); }
.pf-steps h3 { font-size: 1.35rem; margin: .4rem 0 .4rem; }
.pf-steps p { margin: 0; line-height: 1.5; color: var(--ink-soft); }
.pf-log { margin: 0; border: 1px solid var(--gold-a35); border-radius: 8px; background: #080604; box-shadow: 0 30px 60px -35px #000; overflow: hidden; position: sticky; top: calc(var(--header-height) + 1.5rem); }
.pf-log figcaption { padding: .7rem 1rem; border-bottom: 1px solid var(--gold-a18); background: #15100a; font-family: var(--pf-mono); font-size: .74rem; letter-spacing: .08em; color: var(--ink-soft); }
.pf-log ul { padding: 1.1rem 1.1rem 1.3rem; font-family: var(--pf-mono); font-size: .8rem; line-height: 1.9; }
.pf-log li { display: flex; gap: .7rem; color: var(--ink); overflow-wrap: anywhere; }
.pf-log li span { flex: none; width: 1ch; }
.pf-log li b { font-weight: 400; min-width: 0; }
.pf-log-cmd { color: var(--parchment) !important; }
.pf-log-cmd span, .pf-log-ok span { color: #8fcf9a; }
.pf-log-dim { color: var(--ink-soft) !important; }
.pf-log-dim span { color: var(--gold); }

/* ---------- Record ---------- */
.pf-timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.pf-timeline::before { content: ""; position: absolute; left: 9.5rem; top: .5rem; bottom: .5rem; width: 1px; background: linear-gradient(var(--gold), var(--gold-a18)); }
.pf-timeline > li { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); padding: 0 0 2rem; }
.pf-timeline > li > div { position: relative; padding-left: 2rem; }
.pf-timeline > li > div::before { content: ""; position: absolute; left: -5px; top: .55rem; width: 9px; height: 9px; border-radius: 50%; background: var(--bg); border: 1px solid var(--gold-bright); box-shadow: 0 0 12px rgb(212 175 55 / .6); }
.pf-years { margin: .25rem 0 0; font-family: var(--serif-head); font-size: .9rem; letter-spacing: .1em; color: var(--gold); font-variant-numeric: lining-nums; }
.pf-timeline h3 { font-size: 1.5rem; margin: 0; }
.pf-role { margin: .1rem 0 .6rem; font-style: italic; color: var(--parchment-dim); }
.pf-timeline ul li { margin: 0 0 .35rem; line-height: 1.55; color: var(--ink); }
.pf-edu { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem !important; }
.pf-edu li { padding: 1.1rem 1.2rem; border: 1px solid var(--hairline); border-top: 2px solid var(--gold); background: var(--pf-card); }
.pf-edu strong { display: block; font-family: var(--serif-display); font-weight: 400; font-size: 1.2rem; color: var(--parchment); margin-bottom: .3rem; }
.pf-edu span { font-size: var(--fs-small); color: var(--ink-soft); }

/* ---------- Books ---------- */
.pf-shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); gap: 1rem; }
.pf-book {
  position: relative; display: flex; flex-direction: column; min-height: 330px; padding: 1.2rem 1.2rem 1.3rem;
  border: 1px solid var(--gold-a35); border-radius: 2px 6px 6px 2px; text-decoration: none !important;
  background: linear-gradient(100deg, rgb(0 0 0 / .45) 0 5%, transparent 9%), linear-gradient(180deg, var(--book), color-mix(in srgb, var(--book) 55%, #000));
  box-shadow: inset 4px 0 0 rgb(212 175 55 / .35), 0 24px 40px -26px #000;
  transition: translate var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease);
}
.pf-book:hover { translate: 0 -6px; box-shadow: inset 4px 0 0 rgb(212 175 55 / .6), 0 34px 50px -26px #000, 0 0 50px -20px rgb(212 175 55 / .4); }
.pf-book:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 3px; }
.pf-book-flag { align-self: flex-start; padding: .2rem .55rem; border: 1px solid var(--gold-a60); border-radius: 999px; font-family: var(--serif-head); font-size: .66rem; letter-spacing: .16em; text-transform: uppercase; color: var(--gold-bright); }
.pf-book-art { height: 120px; overflow: hidden; display: grid; place-items: center; margin: .8rem 0 .6rem; }
.pf-book-title { font-family: var(--serif-display); font-size: 1.35rem; line-height: 1.15; color: var(--parchment); }
.pf-book-sub { margin-top: .35rem; font-style: italic; font-size: .98rem; line-height: 1.35; color: var(--parchment-dim); }
.pf-book-meta { margin-top: auto; padding-top: .9rem; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }

/* ---------- Roadmap ---------- */
.pf-road { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.pf-road-col { padding: 1.5rem; border: 1px solid var(--hairline); background: var(--pf-card); }
.pf-road-col h3 { display: flex; align-items: center; gap: .6rem; margin: 0 0 1.1rem; font-size: 1.6rem; }
.pf-road-col:nth-child(2) .pf-dot { background: var(--gold-bright); animation: none; box-shadow: 0 0 10px rgb(212 175 55 / .6); }
.pf-road-col:nth-child(3) .pf-dot { background: transparent; border: 1px solid var(--gold); animation: none; }
.pf-road-col li { padding: .9rem 0; border-top: 1px solid var(--hairline); }
.pf-road-col strong, .pf-offers strong { display: block; font-family: var(--serif-display); font-weight: 400; font-size: 1.2rem; color: var(--parchment); margin-bottom: .2rem; }
.pf-road-col span, .pf-offers span { display: block; line-height: 1.5; color: var(--ink-soft); }

/* ---------- Tools ---------- */
.pf-tool-groups { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; }
.pf-tool-groups h3 { font-size: 1.2rem; margin: 0 0 .8rem; color: var(--gold); }
.pf-tool-groups ul { display: flex; flex-wrap: wrap; gap: .4rem; }
.pf-tool-groups li { padding: .3rem .7rem; border: 1px solid var(--hairline); border-radius: 999px; font-size: .92rem; color: var(--ink); background: var(--gold-a04); }

/* ---------- Engage + contact ---------- */
.pf-engage { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.pf-engage-col { padding: clamp(1.5rem, 3vw, 2.3rem); border: 1px solid var(--hairline); background: var(--pf-card); }
.pf-engage-col h3 { font-size: var(--t-h3); margin: 0 0 .7rem; }
.pf-engage-col > p { margin: 0 0 1rem; line-height: 1.55; color: var(--ink); }
.pf-role-list { display: grid; gap: .5rem; margin-bottom: 1.2rem !important; }
.pf-role-list li { padding: .7rem 1rem; border: 1px solid var(--gold-a35); font-family: var(--serif-display); font-size: 1.2rem; color: var(--parchment); }
.pf-role-list li::before { content: "◆"; margin-right: .7rem; font-size: .7rem; color: var(--gold); vertical-align: .15em; }
.pf-note { margin: 0 !important; font-style: italic; color: var(--parchment-dim) !important; line-height: 1.55; }
.pf-offers li { padding: 1rem 0; border-top: 1px solid var(--hairline); }
.pf-offers li:first-child { border-top: 0; padding-top: 0; }

.pf-contact {
  width: var(--pf-wide); margin: var(--section-space) auto 0; padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
  text-align: center; border: 1px solid var(--gold-a35);
  background: radial-gradient(60% 80% at 50% 0%, rgb(212 175 55 / .16), transparent 70%), var(--surface-1);
  box-shadow: var(--edge-light), 0 40px 80px -50px #000;
}
.pf-contact .pf-eyebrow { margin-bottom: 1rem; }
.pf-contact h2 { font-size: clamp(2.4rem, 5.5vw, 4.2rem) !important; }
.pf-contact > p:not(.pf-eyebrow):not(.pf-email):not(.pf-fine) { max-width: 46ch; margin: 0 auto 1.6rem; font-size: var(--t-read); line-height: 1.55; color: var(--ink); }
.pf-email { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: .8rem; margin: 0 0 2rem; }
.pf-email a { font-family: var(--serif-display); font-size: clamp(1.4rem, 3.6vw, 2.2rem); color: var(--parchment) !important; overflow-wrap: anywhere; }
.pf-copy { min-height: 36px; padding: .3rem .9rem; border: 1px solid var(--gold-a35); border-radius: 999px; background: transparent; color: var(--gold); font: inherit; font-size: .85rem; letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
.pf-copy:hover { border-color: var(--gold); color: var(--parchment); }
.pf-copy:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 2px; }
.pf-fine { margin: 2rem 0 0; font-size: var(--fs-small); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); }

/* ---------- Motion ---------- */
.pf-js .pf-reveal { opacity: 0; translate: 0 calc(var(--motion-rise) * 2); transition: opacity 700ms var(--ease), translate 700ms var(--ease), border-color var(--t-med) var(--ease); transition-delay: var(--pf-delay, 0ms); }
.pf-js .pf-reveal.pf-in { opacity: 1; translate: 0 0; }
.pf-js .pf-card.pf-reveal.pf-in:hover, .pf-js .pf-pillar.pf-reveal.pf-in:hover { translate: 0 -4px; transition-delay: 0ms; }
.pf-js .pf-book.pf-reveal.pf-in:hover { translate: 0 -6px; transition-delay: 0ms; }

@media (prefers-reduced-motion: reduce) {
  .pf-orbit, .pf-node span, .pf-dot { animation: none !important; }
  .pf-js .pf-reveal { opacity: 1; translate: none; transition: none; }
  .pf-frame, .pf-card, .pf-book, .pf-pillar, .pf-art { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .pf-orbit-wrap { --r1: 130px; --r2: 188px; --size: 440px; }
  .pf-portrait { width: 200px; }
  .pf-tool-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 1024px) {
  .pf-hero { grid-template-columns: 1fr; min-height: 0; }
  .pf-hero-figure { order: -1; }
  .pf-stats ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pf-stats li:nth-child(4n + 1) { border-inline-start: 1px solid var(--hairline); }
  .pf-stats li:nth-child(odd) { border-inline-start: 0; }
  .pf-stats li:nth-child(n + 3) { border-top: 1px solid var(--hairline); }
  .pf-case, .pf-method-body { grid-template-columns: 1fr; }
  .pf-case:nth-child(even) .pf-case-media { order: 0; }
  .pf-log { position: static; }
  .pf-road { grid-template-columns: 1fr; }
  .pf-edu { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .pf-hero { padding-top: 1.5rem; gap: 1.5rem; }
  .pf-orbit-wrap { --r1: 104px; --r2: 146px; --size: 340px; }
  .pf-portrait { width: 160px; padding: 4px; }
  .pf-node span { font-size: .62rem; letter-spacing: .12em; padding: .25rem .55rem; }
  .pf-hero h1 { font-size: clamp(2.6rem, 11vw, 3.4rem); }
  .pf-lead { font-size: var(--t-body); }
  .pf-pillars, .pf-engage { grid-template-columns: 1fr; }
  .pf-steps { grid-template-columns: 1fr; }
  .pf-timeline::before { left: 4px; }
  .pf-timeline > li { grid-template-columns: 1fr; padding-left: 1.6rem; }
  .pf-timeline > li > div { padding-left: 0; }
  .pf-timeline > li > div::before { left: calc(-1.6rem - 0px); top: -1.45rem; }
  .pf-years { margin-bottom: .3rem; }
  .pf-filters { flex-wrap: nowrap; overflow-x: auto; margin-inline: calc(-1 * var(--gutter)); padding: 0 var(--gutter) .4rem; scrollbar-width: none; }
  .pf-filters button { flex: none; }
  .pf-actions .button { flex: 1 1 auto; text-align: center; }
}
@media (max-width: 480px) {
  .pf-orbit-wrap { --r1: 92px; --r2: 128px; --size: 300px; }
  .pf-portrait { width: 140px; }
  .pf-stats strong { font-size: 2rem; }
  .pf-tool-groups { grid-template-columns: 1fr; }
  .pf-shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pf-book { min-height: 290px; padding: 1rem .9rem 1.1rem; }
  .pf-book-title { font-size: 1.12rem; }
  .pf-book-art { height: 90px; }
}
@media print {
  .pf-orbit, .pf-ring, .pf-filters, .pf-copy, .pf-progress { display: none !important; }
  .pf-js .pf-reveal { opacity: 1; translate: none; }
}