/* Capability index: scoped to Skills; no changes to the hero, ticker or projects. */
#skills.skills-studio {
  --skills-surface: #111b29;
  --skills-code: #0b1420;
  --skills-line: rgba(164, 185, 214, .22);
  --skills-ink: #f3f7ff;
  --skills-muted: #acbdd1;
  padding: clamp(68px, 7vw, 108px) 24px;
  background: radial-gradient(ellipse at 95% 18%, #25344955, transparent 50%), #0a101b;
  color: var(--skills-ink);
  text-align: left;
}
#skills.skills-studio::before { display: none; }
body.light-theme #skills.skills-studio {
  --skills-surface: #fffefa;
  --skills-code: #f3f3ed;
  --skills-line: rgba(27, 49, 60, .2);
  --skills-ink: #172b35;
  --skills-muted: #526470;
  /* Override the older #skills light-theme background, which is !important. */
  background: radial-gradient(ellipse at 95% 10%, #d2e7df88, transparent 55%), #f1f2eb !important;
}
.skills-studio *, .skills-studio *::before, .skills-studio *::after { box-sizing: border-box; }
.skills-shell { width: min(100%, var(--content-width, 1180px)); margin: 0 auto; }
.skills-index-line {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  padding-bottom: 19px; border-bottom: 1px solid var(--skills-line);
  color: var(--skills-muted); font: 600 10px/1.6 Consolas, monospace;
  text-transform: uppercase; letter-spacing: .12em;
}
.skills-index-line > :first-child { color: var(--accent); }
.skills-heading-row { display: grid; grid-template-columns: 1.5fr 1fr; gap: 36px; align-items: end; margin: 32px 0 36px; }
#skills.skills-studio h2 {
  width: auto; margin: 0; font-size: clamp(2.7rem, 5.7vw, 5.1rem);
  line-height: .98; font-weight: 800; letter-spacing: -.065em;
  color: var(--skills-ink); opacity: 1; transform: none; animation: none;
}
#skills.skills-studio h2::before, #skills.skills-studio h2::after { display: none; content: none; }
#skills.skills-studio h2 em { display: block; font: italic 1.04em/.98 Georgia, 'Times New Roman', serif; letter-spacing: -.065em; color: var(--accent); }
.skills-intro { max-width: 350px; margin: 0 0 4px auto; color: var(--skills-muted); font-size: 15px; line-height: 1.7; text-wrap: pretty; }
.skills-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin: 0 0 20px; }
.skills-chapters { display: flex; gap: 8px; flex-wrap: wrap; }
.skills-studio button { font-family: inherit; cursor: pointer; -webkit-appearance: none; appearance: none; }
.skills-chapters button {
  display: flex; align-items: center; gap: 10px; min-height: 44px; padding: 9px 14px;
  border: 1px solid var(--skills-line); border-radius: 4px; color: var(--skills-muted);
  background: transparent; font-size: 12px; font-weight: 600;
  transition: color .2s, background .2s, border-color .2s;
}
.skills-chapters button > :first-child { font: 11px/1.5 Consolas, monospace; opacity: .8; }
.skills-chapters button[aria-pressed="true"] { color: var(--skills-code); background: var(--accent); border-color: var(--accent); }
body.light-theme .skills-chapters button[aria-pressed="true"] { color: #fff; }
.skills-chapters button:hover:not([aria-pressed="true"]) { color: var(--skills-ink); border-color: var(--skills-muted); }
.skills-arrows { display: flex; gap: 8px; }
.skills-arrows button {
  width: 46px; height: 46px; flex-shrink: 0; border: 1px solid var(--skills-line); border-radius: 50%;
  background: transparent; color: var(--skills-ink); font: 24px/1 Arial, sans-serif;
  transition: background .2s, color .2s, opacity .2s;
}
.skills-arrows button:hover:enabled { color: var(--skills-code); background: var(--accent); }
body.light-theme .skills-arrows button:hover:enabled { color: #fff; }
.skills-arrows button:disabled { opacity: .3; cursor: default; }
.skills-studio :focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.skills-rail { --cards-visible: 3; --rail-gap: 18px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--rail-gap); align-items: stretch; }
.skills-studio.is-enhanced .skills-rail {
  grid-template-columns: none; grid-auto-flow: column;
  grid-auto-columns: calc((100% - (var(--cards-visible) - 1) * var(--rail-gap)) / var(--cards-visible));
  overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory;
  scrollbar-width: none; padding: 5px 0; scroll-behavior: smooth;
}
.skills-rail::-webkit-scrollbar { display: none; }
.skills-rail:focus-visible { outline-offset: 6px; }
.capability-card {
  --cap-accent: #88e6c9; --cap-tint: #18372f;
  position: relative; display: flex; flex-direction: column; min-width: 0; padding: 24px;
  border: 1px solid var(--skills-line); border-top: 3px solid var(--cap-accent);
  border-radius: 4px 4px 14px 14px; background: var(--skills-surface);
  scroll-snap-align: start; scroll-margin-inline: 0; isolation: isolate;
  transition: border-color .3s ease, background .3s ease;
}
.capability-card:nth-child(4n + 2) { --cap-accent: #c0adff; --cap-tint: #302942; }
.capability-card:nth-child(4n + 3) { --cap-accent: #ffb195; --cap-tint: #402b27; }
.capability-card:nth-child(4n + 4) { --cap-accent: #9bc9ff; --cap-tint: #233648; }
body.light-theme .capability-card { --cap-accent: #15745d; --cap-tint: #dfede3; }
body.light-theme .capability-card:nth-child(4n + 2) { --cap-accent: #7052b0; --cap-tint: #ede7f7; }
body.light-theme .capability-card:nth-child(4n + 3) { --cap-accent: #ab4d32; --cap-tint: #f6e3d9; }
body.light-theme .capability-card:nth-child(4n + 4) { --cap-accent: #326a9e; --cap-tint: #e0edf7; }
.capability-card.is-open { border-color: var(--cap-accent); }
.capability-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; color: var(--cap-accent); }
.capability-number { font: 400 30px/1 Georgia, serif; font-style: italic; }
.capability-family { font: 600 10px/1.5 Consolas, monospace; text-transform: uppercase; letter-spacing: .1em; }
.capability-mark { margin-left: auto; font: 30px/1 Georgia, serif; transition: transform .7s cubic-bezier(.2,.8,.2,1); }
.capability-card.is-open .capability-mark { transform: rotate(90deg); }
.capability-title { min-height: 2.3em; margin: 0 0 14px; font: 750 clamp(1.35rem, 1.65vw, 1.6rem)/1.15 Inter, system-ui, sans-serif; letter-spacing: -.035em; color: var(--skills-ink); text-wrap: balance; }
.capability-tags { display: flex; flex-wrap: wrap; gap: 6px; min-height: 25px; margin: 0 0 24px; padding: 0; list-style: none; }
.capability-tags li { padding: 3px 7px; border-radius: 3px; background: var(--cap-tint); color: var(--cap-accent); font: 500 10px/1.5 Consolas, monospace; }
.capability-stage { display: grid; grid-template-columns: minmax(0, 1fr); flex: 1; min-width: 0; order: 4; }
.capability-code { display: none; min-width: 0; background: var(--skills-code); border-radius: 6px; padding: 14px; }
.skills-studio.is-enhanced .capability-code { display: flex; flex-direction: column; }
.skills-studio.is-enhanced .capability-stage > * { grid-area: 1 / 1; }
.capability-file { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 18px; padding-bottom: 10px; border-bottom: 1px solid var(--skills-line); color: var(--skills-muted); font: 11px/1.5 Consolas, monospace; }
.capability-file-dots { letter-spacing: 3px; color: var(--cap-accent); }
#skills .capability-code pre, #skills .capability-code code {
  margin: 0; padding: 0; border: 0; background: transparent; color: var(--skills-ink); text-shadow: none;
  font: 11.5px/1.85 Consolas, Monaco, 'Courier New', monospace;
  white-space: pre-wrap; overflow-wrap: anywhere; word-break: normal; text-align: left;
}
#skills .capability-code pre { position: relative; overflow: visible; flex: 1; }
#skills .capability-code pre::before { content: attr(data-full-code); display: block; visibility: hidden; pointer-events: none; }
#skills .capability-code pre > code { position: absolute; inset: 0; display: block; }
.capability-example { display: block; margin-top: 20px; color: var(--skills-muted); font: 9px/1.6 Consolas, monospace; }
#skills .capability-code .token { background: transparent; color: var(--skills-ink); }
#skills .capability-code .token.comment { color: var(--skills-muted); }
#skills .capability-code .token.punctuation { color: var(--skills-ink); }
#skills .capability-code .token.keyword, #skills .capability-code .token.tag, #skills .capability-code .token.selector, #skills .capability-code .token.atrule { color: var(--cap-accent); }
#skills .capability-code .token.string, #skills .capability-code .token.attr-value { color: #a7d4ff; }
#skills .capability-code .token.function, #skills .capability-code .token.property { color: #e3bafc; }
#skills .capability-code .token.operator, #skills .capability-code .token.attr-name, #skills .capability-code .token.number { color: #ffcb92; }
body.light-theme #skills .capability-code .token.string, body.light-theme #skills .capability-code .token.attr-value { color: #286696; }
body.light-theme #skills .capability-code .token.function, body.light-theme #skills .capability-code .token.property { color: #7c408f; }
body.light-theme #skills .capability-code .token.operator, body.light-theme #skills .capability-code .token.attr-name, body.light-theme #skills .capability-code .token.number { color: #905312; }
.capability-detail { display: flex; flex-direction: column; align-self: stretch; gap: 20px; min-width: 0; padding: 2px 0; }
.capability-description { margin: 0; color: var(--skills-ink); font: 400 16px/1.65 Inter, system-ui, sans-serif; text-wrap: pretty; }
.capability-bullets { display: grid; gap: 9px; padding: 0; margin: 0; list-style: none; }
.capability-bullets li { display: grid; grid-template-columns: 12px 1fr; gap: 8px; color: var(--skills-muted); font-size: 12px; line-height: 1.6; }
.capability-bullets li::before { content: '↳'; color: var(--cap-accent); }
.capability-evidence { padding-top: 15px; border-top: 1px solid var(--skills-line); margin-top: auto; }
.capability-evidence > span { color: var(--skills-muted); font: 10px/1.6 Consolas, monospace; text-transform: uppercase; letter-spacing: .08em; }
.capability-evidence > div { display: flex; gap: 6px 12px; flex-wrap: wrap; margin-top: 9px; }
.capability-evidence a { display: inline-flex; align-items: center; gap: 6px; color: var(--cap-accent); font-size: 12px; line-height: 1.7; text-decoration: underline; text-underline-offset: 4px; }
.capability-evidence a:hover { color: var(--skills-ink); }
.skills-studio.is-enhanced .capability-code { opacity: 1; transform: translateY(0); filter: blur(0); transition: opacity .28s ease, transform .42s cubic-bezier(.2,.8,.2,1), filter .28s ease; }
.skills-studio.is-enhanced .capability-detail { opacity: 0; transform: translateY(12px); filter: blur(3px); pointer-events: none; transition: opacity .32s ease, transform .42s cubic-bezier(.2,.8,.2,1), filter .32s ease; }
.skills-studio.is-enhanced .capability-card.is-open .capability-code { opacity: 0; transform: translateY(-6px); filter: blur(2px); pointer-events: none; }
.skills-studio.is-enhanced .capability-card.is-open .capability-detail { opacity: 1; transform: translateY(0); filter: blur(0); pointer-events: auto; }
.capability-toggle { display: flex; align-items: center; justify-content: space-between; gap: 14px; width: 100%; min-height: 44px; margin: 20px 0 0; padding: 8px 0 0; border: 0; border-top: 1px solid var(--skills-line); border-radius: 0; color: var(--cap-accent); background: transparent; text-align: left; font-size: 12px; font-weight: 600; order: 5; }
.capability-toggle-icon { display: grid; place-items: center; width: 27px; height: 27px; border: 1px solid var(--skills-line); border-radius: 50%; font: 18px/1 Arial, sans-serif; transition: transform .3s, background .3s; }
.capability-card.is-open .capability-toggle-icon { transform: rotate(-90deg); background: var(--cap-tint); }
.skills-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 20px; padding-top: 4px; }
.skills-range { display: flex; align-items: center; gap: 16px; }
.skills-count { min-width: 96px; color: var(--skills-ink); font: 12px/1.7 Consolas, monospace; font-variant-numeric: tabular-nums; }
.skills-count span { color: var(--skills-muted); }
.skills-progress { display: block; width: 96px; height: 2px; background: var(--skills-line); overflow: hidden; }
.skills-progress > span { display: block; height: 100%; width: 25%; background: var(--accent); transition: transform .35s ease, width .2s; }
.skills-hint { margin: 0; color: var(--skills-muted); font-size: 11px; line-height: 1.6; }
.skills-motion { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 8px 0 8px 12px; border: 0; background: transparent; color: var(--skills-muted); font-size: 11px; }
.skills-motion:hover { color: var(--skills-ink); }
.skills-motion:disabled { cursor: default; }
.skills-motion-icon { color: var(--accent); }
.skills-announcement { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skills-studio [hidden] { display: none !important; }
@media (max-width: 1040px) {
  .skills-rail { --cards-visible: 2; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skills-heading-row { grid-template-columns: 1.3fr 1fr; gap: 24px; }
  .capability-title { font-size: 25px; }
  #skills .capability-code pre, #skills .capability-code code { font-size: 12px; }
}
@media (max-width: 640px) {
  #skills.skills-studio { padding: 64px 20px; }
  .skills-index-line { gap: 5px; font-size: 9px; }
  .skills-index-line > :last-child { letter-spacing: .03em; }
  .skills-heading-row { grid-template-columns: 1fr; gap: 20px; margin: 26px 0; }
  #skills.skills-studio h2 { font-size: clamp(2.7rem, 10.2vw, 4rem); }
  .skills-intro { margin: 0; font-size: 14px; max-width: 38ch; }
  .skills-toolbar { flex-wrap: wrap; gap: 16px; }
  .skills-chapters { width: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
  .skills-chapters button { gap: 9px; font-size: 11px; padding: 9px 11px; }
  .skills-arrows { margin-left: auto; }
  .skills-rail { --cards-visible: 1; --rail-gap: 14px; grid-template-columns: minmax(0, 1fr); }
  .capability-card { padding: 22px; }
  .capability-title { min-height: 0; font-size: 25px; margin-bottom: 16px; }
  .capability-meta { margin-bottom: 18px; }
  .capability-tags { margin-bottom: 20px; }
  .capability-code { padding: 12px; }
  #skills .capability-code pre, #skills .capability-code code { font-size: 11px; }
  .capability-description { font-size: 15px; }
  .skills-foot { gap: 6px 10px; margin-top: 12px; }
  .skills-range { gap: 8px; }
  .skills-progress { width: 60px; }
  .skills-hint { order: 3; width: 100%; }
  .skills-motion { padding-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .skills-studio *, .skills-studio *::before, .skills-studio *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}
@media print {
  #skills.skills-studio { background: white; color: black; padding: 20px 0; }
  .skills-studio.is-enhanced .skills-rail { display: grid; grid-template-columns: repeat(2, 1fr); grid-auto-flow: row; overflow: visible; }
  .skills-studio.is-enhanced .capability-code, .skills-toolbar, .skills-foot, .capability-toggle { display: none !important; }
  .skills-studio.is-enhanced .capability-detail { opacity: 1; transform: none; filter: none; }
  .capability-card { break-inside: avoid; }
}