/* The platform walkthrough below the hero: a caption column beside a browser window that replays
   the app's real pages (journal and reviewer), one review from posted job to payout. Markup: the
   <figure class="pf"> in index.html; timeline: walkthrough.js. Every rule is scoped to .pf. */
.pf {
  color-scheme: dark;
  /* the app's own dark theme (src/app.css) */
  --bg: oklch(15.5% .03 272);
  --card: oklch(20% .032 270);
  --secondary: oklch(26% .035 270);
  --input: oklch(21% .012 270);
  --fg: oklch(93% .015 85);
  --muted: oklch(70% .025 82);
  --gold: oklch(79% .125 82);
  --gold-soft: oklch(79% .125 82 / .14);
  --border: oklch(79% .125 82 / .16);
  --input-border: oklch(79% .125 82 / .22);
  --on-gold: oklch(17% .03 272);
  --hair: oklch(93% .015 85 / .09);
  --paper: oklch(99% 0 0);
  --ink: oklch(25% .01 270);
  --ink-soft: oklch(45% .01 270);
  --mark: oklch(88% .14 95 / .75);
  --font-display: Lora, ui-serif, Georgia, "Times New Roman", serif;
  --font-ui: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- the figure ---------- */
/* --slow stretches every step; the script reads the same value */
.pf { --slow: 1.3; width: 100%; max-width: 1120px; container: pf / inline-size; }
.pf .pf-stage {
  display: grid; align-items: center;
  grid-template-columns: minmax(0, .72fr) minmax(0, 1.7fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
}
@container pf (max-width: 760px) { .pf .pf-stage { grid-template-columns: minmax(0, 1fr); gap: 1.25rem; } }

.pf .pf-captions { display: grid; }
.pf .pf-cap {
  grid-area: 1 / 1; align-self: center;
  opacity: 0; transform: translateY(8px);
  transition: opacity .5s var(--ease), transform .7s var(--ease);
}
.pf .pf-cap.is-active { opacity: 1; transform: none; }
.pf .pf-eyebrow {
  margin: 0 0 .9rem; display: flex; align-items: center; gap: .6rem;
  font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted);
}
.pf .pf-eyebrow b {
  font: 600 .8rem/1 var(--font-display); letter-spacing: 0; color: var(--gold);
  width: 1.6rem; height: 1.6rem; display: grid; place-items: center;
  border: 1px solid var(--border); border-radius: 50%;
}
.pf .pf-cap h2 {
  margin: 0 0 .75rem; font: 600 clamp(1.7rem, 3.3vw, 2.5rem)/1.08 var(--font-display);
  letter-spacing: -.015em; text-wrap: balance;
}
.pf .pf-cap h2 em { color: var(--gold); }
.pf .pf-cap p.lede { margin: 0; max-width: 24rem; color: var(--muted); line-height: 1.55; font-size: 1rem; }
@container pf (max-width: 760px) {
  .pf .pf-cap h2 { font-size: 1.6rem; }
  .pf .pf-cap p.lede { font-size: .92rem; }
}

/* ---------- the browser window ---------- */
.pf .pf-window {
  position: relative; aspect-ratio: 16 / 11;
  container: win / inline-size;
  border: 1px solid var(--border); border-radius: 12px;
  background-color: var(--bg);
  background-image: radial-gradient(var(--gold-soft) 1px, transparent 1.2px);
  background-size: 22px 22px;
  box-shadow: 0 30px 80px -30px oklch(5% .02 272 / .9), 0 0 0 1px oklch(5% .02 272 / .4);
  overflow: hidden;
}
@container pf (max-width: 560px) { .pf .pf-window { aspect-ratio: 1 / 1.25; } }
.pf .app { position: absolute; inset: 0; font-size: clamp(9.5px, 1.72cqw, 13px); line-height: 1.4; }

.pf .chrome {
  height: 2.5em; display: flex; align-items: center; gap: .8em; padding-inline: .9em;
  background: oklch(12.5% .025 272); border-bottom: 1px solid var(--hair);
}
.pf .chrome .dots { display: flex; gap: .35em; }
.pf .chrome .dots i { width: .6em; height: .6em; border-radius: 50%; background: var(--secondary); }
.pf .chrome .url {
  flex: 1; min-width: 0; max-width: 34em; margin-inline: auto; padding: .25em .9em; border-radius: 99px;
  background: var(--bg); color: var(--muted); font-size: .8em; text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pf .chrome .url b { color: var(--fg); font-weight: 500; }

.pf .pf-scene {
  position: absolute; inset: 2.5em 0 0 0; overflow: hidden;
  opacity: 0; visibility: hidden;
  transition: opacity .6s var(--ease), visibility 0s linear .6s;
}
.pf .pf-scene.is-active { opacity: 1; visibility: visible; transition: opacity .6s var(--ease) .15s, visibility 0s; }
.pf .pane { position: absolute; inset: 0; overflow: hidden; }
.pf .pane.first { opacity: 0; }

/* an animated element's settings are its own: a child never inherits its parent's animation */
@property --k { syntax: "*"; inherits: false; }
@property --t { syntax: "*"; inherits: false; }
@property --d { syntax: "*"; inherits: false; }
/* every animated element: its resting style is the step's final state; the keyframes say where it comes from */
.pf .pf-scene.is-active .a { animation: var(--k, pf-in) calc(var(--t, .5s) * var(--slow)) var(--ease) calc(var(--d, 0s) * var(--slow)) both; }
.pf.is-paused .a, .pf.is-paused .caret { animation-play-state: paused !important; }
@keyframes pf-in { from { opacity: 0; transform: translateY(.6em); } }
@keyframes pf-fade { from { opacity: 0; } }
@keyframes pf-gone { from { opacity: 1; } to { opacity: 0; } }
@keyframes pf-pop { from { opacity: 0; transform: scale(.5); } 60% { opacity: 1; transform: scale(1.1); } }
@keyframes pf-grow { from { transform: scaleX(0); } }
@keyframes pf-scroll { from { transform: none; } }
@keyframes pf-press {
  0%, 100% { transform: none; }
  40% { transform: scale(.93); box-shadow: 0 0 0 .45em var(--gold-soft); filter: brightness(1.2); }
}
@keyframes pf-blink { 50% { opacity: 0; } }

/* ---------- the app's parts ---------- */
.pf .nav {
  height: 3.2em; display: flex; align-items: center; gap: .3em; padding-inline: 2.2em;
  border-bottom: 1px solid var(--border); white-space: nowrap; overflow: hidden;
}
.pf .nav .mark { display: flex; align-items: center; gap: .45em; color: var(--gold); margin-right: 1em; }
.pf .nav .mark svg { width: 1.1em; height: 1.1em; }
.pf .nav .mark span { font: 600 .74em/1 var(--font-display); letter-spacing: .32em; }
.pf .nav .item { padding: .4em .8em; border-radius: .45em; font-size: .9em; font-weight: 500; }
.pf .nav .item.on { background: var(--secondary); }
.pf .nav .sun { width: 1.1em; height: 1.1em; margin-left: .4em; color: var(--fg); }
.pf .bar {
  height: 3.2em; display: flex; align-items: center; gap: 1.1em; padding-inline: 1.6em;
  border-bottom: 1px solid var(--border); white-space: nowrap; overflow: hidden;
}
.pf .bar .back { color: var(--muted); font-size: .9em; }
.pf .bar .ttl { font: 600 1.05em/1 var(--font-display); }
.pf .bar .meta { color: var(--muted); font-size: .86em; overflow: hidden; text-overflow: ellipsis; min-width: 0; flex: 1; }
.pf .bar .end { margin-left: auto; font-size: .9em; font-weight: 500; }

.pf .page { padding: 1.8em 2.2em; display: flex; flex-direction: column; gap: 1.1em; }
.pf .back-link { color: var(--muted); font-size: .9em; }
.pf .h1 { margin: 0; font: 600 1.55em/1.2 var(--font-display); letter-spacing: -.01em; }
.pf .h2 { margin: 0; font: 600 1.15em/1.2 var(--font-display); }
.pf .desc { margin: .3em 0 0; color: var(--muted); font-size: .9em; }
.pf .small { font-size: .78em; color: var(--muted); }
.pf .head-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 1em; }
.pf .btns { display: flex; gap: .5em; flex: none; }

.pf .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  height: 2.5em; padding-inline: 1em; border-radius: .45em; font-size: .9em; font-weight: 500;
  border: 1px solid var(--input-border); color: var(--fg); background: var(--input); white-space: nowrap;
}
.pf .btn.primary { background: var(--gold); color: var(--on-gold); border-color: transparent; }
.pf .btn.sm { height: 2.2em; padding-inline: .8em; font-size: .85em; }
.pf .btn svg { width: 1.05em; height: 1.05em; }
.pf .badge {
  display: inline-flex; align-items: center; gap: .3em; padding: .15em .5em; border-radius: .4em;
  font-size: .75em; font-weight: 500; white-space: nowrap; background: var(--secondary); color: var(--fg);
}
.pf .badge.gold { background: var(--gold); color: var(--on-gold); }
.pf .badge.outline { background: transparent; border: 1px solid var(--input-border); }
.pf .badge svg { width: 1em; height: 1em; }
.pf .label { font-size: .9em; font-weight: 500; margin-bottom: .45em; display: block; }
.pf .label i { font-style: normal; color: var(--muted); font-weight: 400; margin-left: .3em; }
.pf .input {
  display: flex; align-items: center; min-height: 2.5em; padding: .45em .8em; border-radius: .45em;
  border: 1px solid var(--input-border); background: var(--input); font-size: .9em;
  white-space: nowrap; overflow: hidden;
}
.pf .input.area { align-items: flex-start; white-space: normal; min-height: 5.2em; line-height: 1.45; }
.pf .ph { color: var(--muted); }
.pf .caret { display: inline-block; width: 1px; height: 1.05em; margin-left: 1px; vertical-align: text-bottom; background: var(--gold); animation: pf-blink 1s steps(1) infinite; }
.pf .swap { display: inline-grid; justify-items: start; }
.pf .swap > * { grid-area: 1 / 1; }
.pf .swap > .off { opacity: 0; }
.pf .num { font-variant-numeric: tabular-nums; }
.pf .rule { border-top: 1px solid var(--hair); }
.pf .avatar {
  flex: none; width: 2.8em; height: 2.8em; border-radius: 50%; display: grid; place-items: center;
  background: var(--secondary); color: var(--fg); font-size: .85em; font-weight: 600;
}
.pf .table { width: 100%; border-collapse: collapse; font-size: .9em; }
.pf .table th { text-align: left; font-weight: 500; padding: .65em .6em; border-bottom: 1px solid var(--hair); white-space: nowrap; }
.pf .table td { padding: .75em .6em; border-bottom: 1px solid var(--hair); vertical-align: middle; }
.pf .table td.r, .pf .table th.r { text-align: right; }
.pf .figures { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--hair); }
.pf .figures > div { padding: .9em 1.1em .9em 0; }
.pf .figures > div + div { padding-left: 1.1em; border-left: 1px solid var(--hair); }
.pf .figures dt { font-size: .76em; color: var(--muted); }
.pf .figures dd { margin: .2em 0; font: 600 1.6em/1.1 var(--font-display); }
.pf .figures .d { font-size: .76em; color: var(--muted); }

/* ---------- 1 · new review job (a focus page) ---------- */
.pf .focus { position: absolute; inset: 3.2em 0 0 0; overflow: hidden; display: flex; justify-content: center; align-items: flex-start; padding: 1.8em 1.4em; }
.pf .focus-card {
  width: 100%; max-width: 30em; padding: 1.8em 1.9em; border-radius: .9em;
  border: 1px solid var(--border); background: var(--card);
  display: flex; flex-direction: column; gap: 1.1em;
  transform: translateY(-13.2em);
}
.pf .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1em; }
.pf .file b { font-weight: 500; margin-right: .6em; }

/* ---------- 2 · invite reviewers ---------- */
.pf .s2-scroll { transform: translateY(-9.2em); }
.pf .search { display: flex; align-items: center; gap: .6em; color: var(--muted); }
.pf .search svg { width: 1.1em; height: 1.1em; flex: none; }
.pf .cards { display: flex; flex-direction: column; }
.pf .rcard { display: grid; gap: .8em; padding-block: 1.1em; border-bottom: 1px solid var(--hair); }
.pf .rcard .top { display: flex; gap: .8em; align-items: flex-start; }
.pf .rcard .who { flex: 1; min-width: 0; display: grid; gap: .25em; }
.pf .rcard .name { display: flex; flex-wrap: wrap; align-items: center; gap: .5em; }
.pf .rcard .name b { font-size: 1em; font-weight: 600; }
.pf .rcard .links { display: flex; flex-wrap: wrap; gap: .2em .9em; font-size: .76em; color: var(--muted); }
.pf .rcard .body { padding-left: 3.2em; display: grid; gap: .8em; }
.pf .metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .4em 1.2em; margin: 0; }
.pf .metrics dt { font-size: .74em; color: var(--muted); }
.pf .metrics dd { margin: 0; font-weight: 600; }
.pf .metrics dd.d { font-size: .72em; font-weight: 400; color: var(--muted); }
.pf .speed { display: flex; height: .45em; border-radius: 99px; overflow: hidden; margin-top: .3em; }
.pf .speed i { display: block; }
.pf .why { font-size: .86em; }
.pf .why .small { display: block; margin-bottom: .25em; }
.pf .why .ver { color: var(--muted); white-space: nowrap; }
.pf .why .ver svg { width: 1em; height: 1em; color: var(--gold); vertical-align: -.15em; }

/* ---------- 3 · inbox and invitation ---------- */
.pf .tabs { display: flex; gap: .3em; font-size: .9em; }
.pf .tabs span { padding: .4em .8em; border-radius: .45em; font-weight: 500; }
.pf .tabs span i { font-style: normal; color: var(--muted); margin-left: .3em; }
.pf .tabs .on { background: var(--secondary); }
.pf .facts { display: grid; grid-template-columns: 1fr 1fr; border-block: 1px solid var(--hair); }
.pf .facts > div { padding: .9em 1.1em .9em 0; }
.pf .facts > div + div { padding-left: 1.1em; border-left: 1px solid var(--hair); }
.pf .facts dt { font-size: .76em; color: var(--muted); }
.pf .facts dd { margin: .15em 0; font: 600 1.7em/1.1 var(--font-display); }
.pf .facts .d { font-size: .76em; color: var(--muted); }
.pf .kv { display: grid; grid-template-columns: 11em minmax(0, 1fr); gap: 1em; padding-block: .9em; border-top: 1px solid var(--hair); font-size: .9em; }
.pf .kv dt { font-weight: 500; }
.pf .kv dd { margin: 0; }

/* ---------- 4 · the PDF editor and the review ---------- */
.pf .tool {
  height: 3em; display: flex; align-items: center; gap: .8em; padding-inline: .9em;
  border-bottom: 1px solid var(--border); font-size: .85em; color: var(--muted); white-space: nowrap;
}
.pf .tool .sq { width: 2.1em; height: 2.1em; display: grid; place-items: center; border-radius: .4em; border: 1px solid var(--input-border); background: var(--input); color: var(--fg); }
.pf .tool .end { margin-left: auto; }
.pf .pdfwrap { position: absolute; inset: 6.2em 0 0 0; display: grid; grid-template-columns: minmax(0, 1fr) 17em; }
.pf .sheet {
  margin: .9em 0 0 .9em; background: var(--paper); color: var(--ink); padding: 2em 2.4em;
  font-family: "Times New Roman", Times, serif; font-size: .82em; line-height: 1.5; overflow: hidden;
}
.pf .sheet h4 { margin: 0 0 .9em; font-size: 1.05em; }
.pf .sheet p { margin: 0 0 .8em; text-align: justify; hyphens: auto; }
.pf .sheet .mk { background: linear-gradient(var(--mark), var(--mark)) no-repeat; background-size: 100% 100%; }
@keyframes pf-mark { from { background-size: 0% 100%; } }
.pf .side { padding: .9em; display: grid; align-content: start; font-size: .9em; }
.pf .side > * { grid-area: 1 / 1; }
.pf .note { border: 1px solid var(--border); border-radius: .6em; background: var(--card); padding: .8em; display: flex; flex-direction: column; gap: .6em; }
.pf .note .sev { display: flex; align-items: center; gap: .5em; font-size: .82em; color: var(--muted); }
.pf .seg { display: inline-flex; border: 1px solid var(--input-border); border-radius: .4em; overflow: hidden; }
.pf .seg span { padding: .2em .65em; font-size: .9em; color: var(--fg); }
.pf .seg span.on { background: var(--gold); color: var(--on-gold); }
.pf .note .txt { font-size: .9em; line-height: 1.45; min-height: 4.2em; }
.pf .note .foot { display: flex; justify-content: space-between; align-items: center; font-size: .78em; color: var(--muted); }

.pf .review { display: grid; grid-template-columns: 15em minmax(0, 1fr); height: calc(100% - 3.2em); }
.pf .review .left { padding: 1.4em 1.6em; border-right: 1px solid var(--hair); display: flex; flex-direction: column; gap: 1em; font-size: .92em; overflow: hidden; }
.pf .review .right { padding: 1.4em 1.8em 5em; display: flex; flex-direction: column; gap: 1.1em; overflow: hidden; }
.pf .box { border: 1px solid var(--border); border-radius: .7em; padding: 1em 1.1em; display: flex; gap: 1em; align-items: center; justify-content: space-between; }
.pf .box p { margin: .25em 0 0; font-size: .82em; color: var(--muted); }
.pf .editor { border: 1px solid var(--input-border); border-radius: .5em; background: var(--input); }
.pf .editor .tb { display: flex; gap: 1.1em; padding: .55em .9em; border-bottom: 1px solid var(--input-border); font-size: .82em; font-weight: 600; }
.pf .editor .tx { padding: .7em .9em; min-height: 5.6em; font-size: .9em; line-height: 1.5; }
.pf .opts { display: grid; grid-template-columns: 1fr 1fr; gap: .5em; }
.pf .opts span { display: grid; place-items: center; height: 2.5em; border-radius: .45em; border: 1px solid var(--input-border); background: var(--input); font-size: .9em; font-weight: 500; position: relative; overflow: hidden; }
.pf .opts .sel-fill { position: absolute; inset: 0; display: grid; place-items: center; background: var(--gold); color: var(--on-gold); }
.pf .footbar {
  position: absolute; left: 0; right: 0; bottom: 0; height: 3.6em; display: flex; align-items: center; gap: .6em;
  padding-inline: 1.6em; border-top: 1px solid var(--border); background: var(--bg); font-size: .95em;
}
.pf .footbar .w { margin-right: auto; font-weight: 500; font-size: .9em; }

/* ---------- 5 · rating and payout ---------- */
.pf .stars { display: flex; gap: .3em; }
.pf .stars svg { width: 1.3em; height: 1.3em; }
.pf .stars .o { fill: none; stroke: var(--muted); stroke-width: 1.4; }
.pf .stars .f { fill: var(--gold); stroke: var(--gold); stroke-width: 1.4; transform-box: fill-box; transform-origin: center; }
.pf .tl { font-size: .8em; color: var(--muted); line-height: 1.35; }

@container win (max-width: 560px) {
  .pf .nav { padding-inline: 1.2em; }
  .pf .nav .item:nth-of-type(n+4), .pf .nav .sun { display: none; }
  .pf .page { padding: 1.4em 1.2em; }
  .pf .head-row { flex-direction: column; }
  .pf .bar .meta { display: none; }
  .pf .metrics { grid-template-columns: 1fr 1fr; }
  .pf .rcard .body { padding-left: 0; }
  .pf .hide-narrow { display: none; }
  .pf .pdfwrap { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr) auto; }
  .pf .sheet { margin: .9em .9em 0; }
  .pf .review { grid-template-columns: minmax(0, 1fr); }
  .pf .review .left { display: none; }
  .pf .review .right { padding: 1.2em 1.2em 5em; }
  .pf .footbar .w { display: none; }
  .pf .footbar { justify-content: flex-end; }
  .pf .kv { grid-template-columns: minmax(0, 1fr); gap: .3em; }
  .pf .figures { grid-template-columns: 1fr 1fr; }
  .pf .figures > div:nth-child(3) { display: none; }
  .pf .s2-scroll { transform: translateY(-12em); }
  .pf .focus-card { transform: translateY(-17em); }
}

/* ---------- chapters ---------- */
.pf .pf-chapters { margin-top: 1.6rem; display: flex; align-items: stretch; gap: .5rem; }
.pf .pf-play {
  flex: none; width: 2.6rem; display: grid; place-items: center; border-radius: 99px;
  border: 1px solid var(--border); background: transparent; color: var(--gold); cursor: pointer;
}
.pf .pf-play svg { width: 1rem; height: 1rem; }
.pf .pf-play .i-play { display: none; }
.pf.is-paused .pf-play .i-play { display: block; }
.pf.is-paused .pf-play .i-pause { display: none; }
.pf .pf-steps { flex: 1; min-width: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .5rem; list-style: none; margin: 0; padding: 0; }
.pf .pf-step {
  width: 100%; text-align: left; cursor: pointer; background: transparent; border: 0; padding: .55rem 0 0; color: oklch(56% .025 272);
  font: 500 .78rem/1.2 var(--font-ui); letter-spacing: .04em; position: relative;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pf .pf-step::before, .pf .pf-step i { content: ""; position: absolute; left: 0; top: 0; height: 2px; border-radius: 2px; }
.pf .pf-step::before { right: 0; background: var(--hair); }
.pf .pf-step i { width: 100%; background: var(--gold); transform-origin: left; transform: scaleX(0); }
.pf .pf-step.is-done i { transform: scaleX(1); opacity: .45; }
.pf .pf-step[aria-current="step"] { color: var(--fg); }
.pf .pf-step:hover { color: var(--muted); }
.pf .pf-step:focus-visible, .pf .pf-play:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }
@container pf (max-width: 560px) { .pf .pf-step span { display: none; } .pf .pf-step { font-size: .72rem; } }

@media (prefers-reduced-motion: reduce) {
  .pf .a, .pf .caret { animation: none !important; }
  .pf .pf-scene, .pf .pf-cap { transition: none; }
}