:root {
  --ground: #EEF1F4;
  --surface: #FFFFFF;
  --ink: #151B24;
  --muted: #5A6373;
  --line: #D6DCE3;
  --accent: #0F6A8B;
  --accent-ink: #FFFFFF;
  --accent-soft: #DCEEF4;
  --mark: #FFE7A3;
  --star: #9A6400; --star-soft: #FCF1DA;
  --ok: #1D7A45; --ok-soft: #DEF1E5;
  --warn: #8F5400; --warn-soft: #FCEFD7;
  --bad: #B3261E; --bad-soft: #FBE3E1;
  --display: "Gabarito", "Avenir Next", system-ui, sans-serif;
  --sans: "Atkinson Hyperlegible Next", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0F1319; --surface: #171C24; --ink: #E4E8EE; --muted: #98A1B0; --line: #28303B;
    --accent: #5DB9DA; --accent-ink: #062431; --accent-soft: #15303B; --mark: #5A4A12;
    --star: #F0C05C; --star-soft: #33290F;
    --ok: #5ECF8C; --ok-soft: #16311F; --warn: #F0B561; --warn-soft: #33260F; --bad: #F2857D; --bad-soft: #3A1715;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #0F1319; --surface: #171C24; --ink: #E4E8EE; --muted: #98A1B0; --line: #28303B;
  --accent: #5DB9DA; --accent-ink: #062431; --accent-soft: #15303B; --mark: #5A4A12;
    --star: #F0C05C; --star-soft: #33290F;
  --ok: #5ECF8C; --ok-soft: #16311F; --warn: #F0B561; --warn-soft: #33260F; --bad: #F2857D; --bad-soft: #3A1715;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--ground); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.55; }
a { color: var(--accent); }
h1, h2, h3 { font-family: var(--display); margin: 0; text-wrap: balance; letter-spacing: -0.01em; }
h1 { font-size: 2.1rem; font-weight: 800; line-height: 1.1; }
h2 { font-size: 1.3rem; font-weight: 700; }
h3 { font-size: 1.08rem; font-weight: 700; }
p { margin: 0; }
code, .mono { font-family: var(--mono); font-size: 0.86em; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* top bar */
.bar { position: sticky; top: 0; z-index: 5; background: var(--surface); border-bottom: 1px solid var(--line); padding-top: env(safe-area-inset-top, 0px); }
.bar-inner { max-width: 1160px; margin: 0 auto; padding-inline: 16px; padding-block: 10px; display: flex; gap: 12px 24px; align-items: center; flex-wrap: wrap; }
.wordmark { font-family: var(--display); font-weight: 800; font-size: 1.2rem; color: var(--ink); text-decoration: none; white-space: nowrap; }
.wordmark span { color: var(--accent); }
.search { flex: 1 1 320px; display: flex; gap: 8px; }
.search input { flex: 1; min-width: 0; font: inherit; font-size: 0.95rem; color: var(--ink); background: var(--ground); border: 1px solid var(--line); border-radius: 6px; padding: 8px 12px; }
.add-skills { flex: none; white-space: nowrap; }
.gh-link { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 6px; color: var(--ink); flex: none; }
.gh-link:hover { color: var(--accent); background: var(--ground); }
.search input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.btn { border: 1px solid var(--line); background: var(--surface); border-radius: 6px; padding: 8px 14px; font-size: 0.92rem; font-weight: 600; text-decoration: none; color: var(--ink); display: inline-flex; gap: 6px; align-items: center; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn[disabled] { opacity: 0.6; cursor: progress; }

.wrap { max-width: 1160px; margin: 0 auto; padding-inline: 16px; padding-block: 28px 64px; display: flex; flex-direction: column; gap: 28px; outline: none; }
.eyebrow { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.muted { color: var(--muted); }
.lede { color: var(--muted); max-width: 62ch; }

/* home */
.intro { display: flex; flex-direction: column; gap: 8px; }
.intro .count { font-variant-numeric: tabular-nums; }
.home { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; align-items: start; }
.section { display: flex; flex-direction: column; gap: 14px; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.side { display: flex; flex-direction: column; gap: 28px; position: sticky; top: 84px; }

/* home promo for the example flow: one slim row */
.promo { display: flex; gap: 8px 14px; align-items: center; flex-wrap: wrap;
  background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: 8px; padding: 10px 12px 10px 16px; color: var(--ink); text-decoration: none; font-size: 0.94rem; }
.promo:hover { border-color: var(--accent); }
.promo:hover .btn { filter: brightness(1.08); }
.promo .eyebrow { flex: none; }
.promo-text { flex: 1 1 260px; min-width: 0; }
.promo .btn { padding: 5px 12px; font-size: 0.86rem; }

/* skill cards: an index-card list */
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; align-items: start; }
.card { display: flex; flex-direction: column; gap: 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; color: var(--ink); text-decoration: none; }
.card:hover { border-color: var(--accent); }
.card-top { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.card h3 { overflow-wrap: anywhere; }
.card .desc { font-size: 0.93rem; color: var(--ink); }
.card .foot { display: flex; justify-content: space-between; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: auto; padding-top: 4px; }
.foot-right { display: inline-flex; align-items: baseline; gap: 8px; margin-left: auto; }
.owner { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); text-decoration: none; white-space: nowrap; }
.owner:hover { color: var(--accent); text-decoration: underline; }
.owner-inline { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); margin-left: auto; white-space: nowrap; }
.date { font-size: 0.78rem; color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }

/* stars */
.star { display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--line); background: var(--surface);
  border-radius: 999px; padding: 2px 9px; font-size: 0.8rem; color: var(--muted); line-height: 1.6; flex: none; }
.star:hover { border-color: var(--accent); color: var(--accent); }
.star.on { color: var(--star); border-color: color-mix(in srgb, var(--star) 45%, var(--line)); background: var(--star-soft); }
.star-icon { font-size: 0.95rem; line-height: 1; }
.star-count { font-variant-numeric: tabular-nums; }
.star-count:empty { display: none; }
.card-right { display: inline-flex; align-items: center; gap: 6px; flex: none; }
.title-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.title-row .star { padding: 4px 12px; font-size: 0.9rem; }

/* home tabs */
.tabs { display: inline-flex; gap: 4px; }
.tab { border: 0; background: transparent; font-family: var(--display); font-weight: 700; font-size: 1.3rem;
  letter-spacing: -0.01em; color: var(--muted); padding: 0 2px 2px; border-bottom: 2px solid transparent; }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.tab:hover { color: var(--ink); }

.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); border: 1px solid var(--line); border-radius: 4px; padding: 1px 6px; background: var(--ground); text-decoration: none; white-space: nowrap; }
a.chip:hover { color: var(--accent); border-color: var(--accent); }
.coll { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); background: var(--accent-soft); border-radius: 4px; padding: 1px 7px; text-decoration: none; white-space: nowrap; }

/* tag cloud: size encodes how many skills carry the tag */
.cloud { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; }
.cloud a { font-family: var(--display); font-weight: 600; color: var(--ink); text-decoration: none; line-height: 1.3; }
.cloud a:hover { color: var(--accent); text-decoration: underline; }
.cloud a sup { font-family: var(--mono); font-size: 0.6rem; color: var(--muted); font-weight: 400; margin-left: 1px; }
.list-plain { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.list-plain a { display: flex; justify-content: space-between; gap: 8px; color: var(--ink); text-decoration: none; padding: 3px 0; }
.list-plain a:hover { color: var(--accent); }
.list-plain .n { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); }

/* search */
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filter { display: inline-flex; gap: 6px; align-items: center; font-size: 0.85rem; background: var(--accent-soft); border-radius: 999px; padding: 3px 6px 3px 12px; }
.filter a { color: var(--muted); text-decoration: none; font-size: 1rem; line-height: 1; padding: 0 5px; }
.results { display: flex; flex-direction: column; }
.result { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 16px; padding: 14px 4px; border-top: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.result:last-child { border-bottom: 1px solid var(--line); }
.result:hover h3 { color: var(--accent); }
.result .desc { grid-column: 1 / -1; font-size: 0.94rem; max-width: 80ch; }
.result .chips { grid-column: 1 / -1; }
mark { background: var(--mark); color: inherit; border-radius: 2px; padding: 0 1px; }
.empty { background: var(--surface); border: 1px dashed var(--line); border-radius: 8px; padding: 28px; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }

/* detail */
.crumbs { font-size: 0.86rem; color: var(--muted); display: flex; gap: 6px; flex-wrap: wrap; }
.crumbs a { color: var(--muted); }
.detail-head { display: flex; flex-direction: column; gap: 10px; }
.detail-head .desc { font-size: 1.08rem; max-width: 70ch; }
.sibling { font-size: 0.92rem; color: var(--muted); }
.out { text-decoration: none; font-size: 0.9em; color: var(--muted); }
.out:hover { color: var(--accent); }
.meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
.meta div { padding: 12px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.meta dt { font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.meta dd { margin: 0; overflow-wrap: anywhere; }
dl.meta { margin: 0; }

.anchor { color: var(--muted); text-decoration: none; font-weight: 400; margin-left: 8px; opacity: 0; font-size: 0.9em; }
h2:hover .anchor, .anchor:focus-visible { opacity: 1; }
.anchor:hover { color: var(--accent); }
.flow { display: flex; flex-direction: column; gap: 12px; }
.flow-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.flow-head .actions { display: flex; gap: 8px; flex-wrap: wrap; }
.flow-meta { font-size: 0.84rem; color: var(--muted); }
.flow-frame { width: 100%; min-height: 480px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); display: block; }
.flow-empty { background: var(--surface); border: 1px dashed var(--line); border-radius: 8px; padding: 36px 28px; display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.flow-empty p { max-width: 62ch; }
.building { display: flex; gap: 16px; align-items: center; }
.spinner { width: 28px; height: 28px; border-radius: 50%; border: 3px solid var(--accent-soft); border-top-color: var(--accent); animation: spin 0.9s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } }
.elapsed { font-variant-numeric: tabular-nums; }
.progress { font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.progress:empty { display: none; }
.note { border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; font-size: 0.92rem; }
.note.bad { background: var(--bad-soft); border-color: color-mix(in srgb, var(--bad) 35%, var(--line)); }
.note.bad strong { color: var(--bad); }
.token-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.token-row input { font: inherit; font-family: var(--mono); font-size: 0.85rem; background: var(--ground); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; padding: 7px 10px; min-width: 0; flex: 1 1 220px; }

.toast { position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom, 0px) + 20px); transform: translateX(-50%); background: var(--ink); color: var(--ground); padding: 8px 14px; border-radius: 6px; font-size: 0.88rem; opacity: 0; pointer-events: none; transition: opacity 0.15s; }
.toast.show { opacity: 1; }

@media (max-width: 860px) {
  .home { grid-template-columns: 1fr; }
  .side { position: static; }
  .cards { grid-template-columns: 1fr; }
  .meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  h1 { font-size: 1.7rem; }
}

@media (max-width: 600px) {
  /* Wordmark and GitHub link share the first row; search gets its own. */
  .search { order: 3; flex-basis: 100%; }
  .add-skills { margin-left: auto; }
}