/* yehor.feshchenko.org. Colours come only from umbra.css (generated); this file never holds a hex. */
@font-face { font-family: "Literata"; src: url("fonts/literata.ttf") format("truetype"); font-weight: 200 900; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/plex-sans-400.otf") format("opentype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/plex-sans-700.otf") format("opentype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/jetbrains-mono-400.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/jetbrains-mono-700.ttf") format("truetype"); font-weight: 700; font-display: swap; }

:root {
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-serif: "Literata", Charter, Georgia, ui-serif, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --soft-brand: color-mix(in oklab, var(--magenta) 16%, var(--paper));
  color-scheme: dark;
}
:root[data-mode="day"] { color-scheme: light; }
/* No-JS / unknown-theme fallback: the Ember tokens are always present in umbra.css. */

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1rem/1.6 var(--font-serif); font-optical-sizing: auto;
  max-width: 1080px; margin-inline: auto; padding: 0 16px 48px;
}
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--bright-blue); }
:focus-visible { outline: 3px solid var(--magenta); outline-offset: 2px; }
.mono { font-family: var(--font-mono); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--paper); padding: 8px 12px; border-radius: 6px; z-index: 2; }
.draft {
  margin: 12px 0 0; padding: 8px 14px; border-radius: 10px; border-left: 4px solid var(--yellow);
  background: color-mix(in oklab, var(--yellow) 16%, var(--paper)); color: var(--bright-yellow);
  font: 700 .86rem/1.45 var(--font-sans);
}

/* chrome */
.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.home { color: var(--ink); text-decoration: none; font-weight: 700; font-size: .86rem; }
.mark { color: var(--magenta); }
.mode {
  min-height: 38px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: var(--paper); color: var(--ink); font: 700 .78rem/1 var(--font-sans); cursor: pointer;
}
.foot { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); font-family: var(--font-sans); }
.contacts { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.contacts a { min-height: 38px; display: inline-flex; align-items: center; }
.fine { color: var(--quiet); font-size: .78rem; margin: 8px 0 0; }

/* type */
h1 { font-weight: 740; font-size: clamp(1.9rem, 5vw, 2.8rem); line-height: 1.08; margin: 6px 0 8px; }
h2 { font-weight: 740; font-size: 1.25rem; line-height: 1.25; margin: 0 0 8px; }
h3 { font-weight: 700; font-size: 1.05rem; line-height: 1.3; margin: 0; }
.eyebrow { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--quiet); margin: 0; }
.eyebrow a { color: var(--quiet); }
.pitch { font-size: 1.15rem; line-height: 1.55; color: var(--quiet); max-width: 60ch; margin: 0 0 20px; }
.hint { color: var(--quiet); font: 400 .86rem/1.45 var(--font-sans); margin: 0 0 14px; }
section { margin-top: 40px; }

/* hero meta row */
.meta { display: flex; flex-wrap: wrap; gap: 8px 28px; margin: 0; padding: 10px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: .84rem; }
.meta div { display: flex; gap: 8px; }
.meta dt { color: var(--quiet); }
.meta dd { margin: 0; font-weight: 700; }

/* now */
.now ul { list-style: none; padding: 0; margin: 0; max-width: 68ch; }
.now li { padding: 6px 0 6px 14px; border-left: 3px solid var(--line-strong); margin-bottom: 8px; }
.now .k { display: inline-block; min-width: 5.5em; font-size: .78rem; font-weight: 700; color: var(--magenta); text-transform: uppercase; }

/* career ruler */
.ruler { position: relative; height: 44px; border-bottom: 1px solid var(--line-strong); }
.seg {
  position: absolute; top: 8px; height: 28px; border: none; border-left: 3px solid var(--magenta);
  background: var(--paper); color: var(--ink); font: 700 .72rem/1 var(--font-mono);
  text-align: left; padding: 0 8px; cursor: pointer; overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
  transition: background 120ms ease-out, color 120ms ease-out;
}
.seg:hover { background: var(--line-strong); }
.seg.on { background: var(--soft-brand); color: var(--bright-magenta); }
.ticks { position: relative; height: 20px; font-size: .72rem; color: var(--quiet); }
.ticks span { position: absolute; top: 4px; transform: translateX(-50%); }
.ticks span:first-child { transform: none; }
.role { margin-top: 16px; padding-left: 14px; border-left: 3px solid var(--line-strong); max-width: 68ch; }
.role .when { color: var(--quiet); font-size: .8rem; margin: 2px 0 0; }
.role ul { margin: 8px 0 0; padding-left: 18px; }
.js .role:not(.on) { display: none; }
.js .role.on { border-left-color: var(--magenta); }

/* skills ↔ work */
.map-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.skills h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--quiet); margin: 12px 0 8px; }
.skills h3:first-child { margin-top: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; min-height: 28px; padding: 2px 12px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--paper); color: var(--ink);
  font: 400 .86rem/1.3 var(--font-sans);
}
button.chip { cursor: pointer; border-color: var(--quiet); transition: background 120ms ease-out, color 120ms ease-out; }
button.chip:hover { background: var(--line-strong); }
.chip.plain { color: var(--quiet); }
.chip[aria-pressed="true"] { background: var(--soft-brand); color: var(--bright-magenta); border-color: var(--magenta); }
.card {
  display: block; text-decoration: none; color: var(--ink); background: var(--paper);
  border: 1px solid var(--line-strong); border-radius: 10px; padding: 12px 14px; margin-bottom: 10px;
  transition: opacity 120ms ease-out, border-color 120ms ease-out;
}
.card:hover { border-color: var(--quiet); color: var(--ink); }
.card strong { display: block; font-size: 1.05rem; line-height: 1.3; margin: 2px 0 4px; }
.card .org { font-size: .74rem; color: var(--quiet); text-transform: uppercase; letter-spacing: .06em; }
.card .sum { display: block; font: 400 .9rem/1.45 var(--font-sans); color: var(--quiet); }
.card.dim { opacity: .35; }
.card.hit { border-color: var(--magenta); border-left: 4px solid var(--magenta); }

/* case page */
.case { max-width: 68ch; margin-top: 32px; }
.case section { margin-top: 28px; }
.case section p { margin: 0; }
.prar { margin: 24px 0 0; border-top: 1px solid var(--line-strong); }
.prar div { display: grid; grid-template-columns: 8.5em 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.prar dt { font-size: .78rem; font-weight: 700; text-transform: uppercase; color: var(--magenta); padding-top: 3px; }
.prar dd { margin: 0; }
.used { margin-top: 32px; }
.used h2 { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--quiet); }

@media (max-width: 860px) { .map-grid { grid-template-columns: 1fr; } }
@media (max-width: 520px) {
  /* the ruler turns into a stacked list: a time scale is unreadable at phone width */
  .ruler { height: auto; border-bottom: none; display: grid; gap: 6px; }
  .seg { position: static; width: 100% !important; height: 38px; font-size: .78rem; }
  .ticks { display: none; }
  .prar div { grid-template-columns: 1fr; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print { .top, .mode, .draft, .hint { display: none; } }

/* steppers: "How I work" (home) and "Follow one task" (Exocortex case).
   Without JS every layer and every step shows; with JS the reader steps through. */
.stage { background: var(--paper); border: 1px solid var(--line-strong); border-radius: 10px; padding: 16px; max-width: 68ch; }
.ctl { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.btn {
  min-height: 38px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: var(--bg); color: var(--ink); font: 700 .8rem/1 var(--font-sans); cursor: pointer;
  transition: border-color 120ms ease-out;
}
.btn:hover { border-color: var(--quiet); }
.btn.primary { background: var(--soft-brand); color: var(--bright-magenta); border-color: var(--magenta); }
.btn[disabled] { opacity: .45; cursor: default; }
.ctl, .seg-ctl { display: none; }
.js .ctl, .js .seg-ctl { display: flex; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.rail { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; padding: 0; margin: 0 0 16px; }
.rail li { font-size: .7rem; font-weight: 700; color: var(--quiet); padding-top: 8px; border-top: 3px solid var(--line-strong); transition: border-color 200ms ease-out, color 200ms ease-out; }
.rail li.done { border-top-color: var(--magenta); color: var(--ink); }
.ask { font-size: 1.15rem; line-height: 1.5; margin: 0; }
.ask .who { display: block; font-size: .78rem; color: var(--quiet); margin-top: 4px; }
.vague { border-bottom: 2px dotted var(--yellow); }
.js .vague { border-bottom-color: transparent; transition: border-color 200ms ease-out, background 200ms ease-out, color 200ms ease-out; }
.js [data-step="1"] .vague, .js [data-step="2"] .vague { border-bottom-color: var(--yellow); background: color-mix(in oklab, var(--yellow) 14%, transparent); }
.js [data-step="3"] .vague, .js [data-step="4"] .vague { text-decoration: line-through; text-decoration-color: var(--quiet); color: var(--quiet); }
.layer { margin-top: 14px; }
.js .layer:not(.show) { display: none; }
.js .layer.show { animation: rise 200ms ease-out both; }
.layer h3 { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--magenta); margin: 0 0 8px; }
.qa { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; font: 400 .9rem/1.45 var(--font-sans); }
.qa li { display: grid; grid-template-columns: auto 1fr; gap: 8px; }
.spec { margin: 0; border-left: 4px solid var(--magenta); padding: 4px 0 4px 14px; display: grid; grid-template-columns: 8em 1fr; gap: 6px 12px; font: 400 .9rem/1.5 var(--font-sans); }
.spec dt { font-size: .72rem; font-weight: 700; line-height: 1.9; color: var(--quiet); text-transform: uppercase; }
.spec dd { margin: 0; }
.spec dd p { margin: 0 0 4px; }
.spec b.mono { font-size: .82rem; color: var(--magenta); }
.ready { font-size: .8rem; font-weight: 700; color: var(--green); margin: 0; }

.seg-ctl { border: 1px solid var(--line-strong); border-radius: 999px; overflow: hidden; width: fit-content; }
.seg-ctl button { min-height: 38px; padding: 0 12px; border: 0; background: var(--bg); color: var(--quiet); font: 700 .78rem/1 var(--font-sans); cursor: pointer; }
.seg-ctl button[aria-pressed="true"] { background: var(--soft-brand); color: var(--bright-magenta); }
.flow { list-style: none; padding: 0; margin: 12px 0 0; }
.flow li { position: relative; padding: 10px 0 10px 44px; min-height: 52px; transition: opacity 200ms ease-out; }
.flow li::before { content: ""; position: absolute; left: 15px; top: 0; bottom: 0; width: 2px; background: var(--line-strong); }
.flow li:first-child::before { top: 24px; }
.flow li:last-child::before { bottom: calc(100% - 24px); }
.flow .node { position: absolute; left: 4px; top: 12px; width: 24px; height: 24px; border-radius: 50%; background: var(--bg); border: 2px solid var(--line-strong); display: grid; place-items: center; font-size: .72rem; z-index: 1; transition: border-color 200ms ease-out, background 200ms ease-out; }
.flow b { font: 700 .95rem/1.3 var(--font-sans); display: block; }
.flow .d { font: 400 .86rem/1.45 var(--font-sans); color: var(--quiet); display: block; }
.flow .say { display: block; margin-top: 6px; font-size: .8rem; line-height: 1.45; padding: 6px 10px; border-radius: 6px; background: var(--bg); border-left: 3px solid var(--magenta); }
.flow .say[data-scn="bad"] { border-left-color: var(--red); }
.js .flow .say { display: none; }
.js .flow li.here .say.on, .js .flow li.stop .say.on { display: block; animation: rise 200ms ease-out both; }
.flow li.past .node { border-color: var(--magenta); background: var(--soft-brand); }
.flow li.here .node { border-color: var(--magenta); background: var(--magenta); }
.flow li.stop .node { border-color: var(--red); background: var(--red); }
.flow li.stop .say { border-left-color: var(--red); }
.flow li.later { opacity: .45; }
.flow li.skipped { opacity: .25; }
.case .flow-demo .stage { margin-top: 8px; }

@media (max-width: 520px) {
  .rail li { font-size: .6rem; }
  .spec { grid-template-columns: 1fr; gap: 0; }
  .spec dt { margin-top: 6px; }
}
@media (prefers-reduced-motion: reduce) { .js .layer.show, .js .flow .say.on { animation: none !important; } }