/* praxonops.com/updates — "What's new in Praxon".
   Layout follows the approved whats-new-page-v1 mockup. Header, footer, type and
   accent tokens come from site.css; the reading surface below the hero follows
   the mockup's light / dark pair (prefers-color-scheme), mapped onto site tokens
   wherever one exists. */

/* ---------------------------------------------------------------- tokens -- */
body.updates {
  --u-bg: var(--paper);
  --u-card: var(--white);
  --u-ink: var(--l-ink);
  --u-ink2: var(--l-ink-3);
  --u-ink3: var(--l-mute);
  --u-line: var(--l-line);
  --u-blue: var(--blue);
  --u-blue50: #EAF1FF;
  --u-blue-line: #BFD3FB;
  --u-green: #15803D;
  --u-green50: #E7F6EC;
  --u-amber: #B45309;
  --u-amber50: #FEF3C7;
  --u-red: #DC2626;
  --u-red50: #FEF2F2;
  --u-red-ink: #7F1D1D;
  --u-media: #F5F7FA;
  --u-shadow: 0 1px 2px rgba(10, 12, 16, .04);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) body.updates {
    --u-bg: var(--bg);
    --u-card: var(--panel);
    --u-ink: var(--ink);
    --u-ink2: var(--ink-2);
    --u-ink3: var(--ink-3);
    --u-line: var(--hair-2);
    --u-blue: var(--blue-hi);
    --u-blue50: #14234A;
    --u-blue-line: #24386B;
    --u-green: #4ADE80;
    --u-green50: #0F2A1A;
    --u-amber: var(--amber);
    --u-amber50: #33260A;
    --u-red: #FF8A7A;
    --u-red50: #2A1215;
    --u-red-ink: #FECACA;
    --u-media: var(--panel-2);
    --u-shadow: none;
  }
}
:root[data-theme="dark"] body.updates {
  --u-bg: var(--bg);
  --u-card: var(--panel);
  --u-ink: var(--ink);
  --u-ink2: var(--ink-2);
  --u-ink3: var(--ink-3);
  --u-line: var(--hair-2);
  --u-blue: var(--blue-hi);
  --u-blue50: #14234A;
  --u-blue-line: #24386B;
  --u-green: #4ADE80;
  --u-green50: #0F2A1A;
  --u-amber: var(--amber);
  --u-amber50: #33260A;
  --u-red: #FF8A7A;
  --u-red50: #2A1215;
  --u-red-ink: #FECACA;
  --u-media: var(--panel-2);
  --u-shadow: none;
}

/* 16px side gutter on small screens (site default is 20px). */
@media (max-width: 899px) { body.updates { --pad: 16px; } }

body.updates { background: var(--bg); }

.updates svg.i {
  width: 18px; height: 18px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}

/* ------------------------------------------------------------------ hero -- */
.u-hero { background: var(--bg); color: var(--ink); padding: 32px 0 40px; }
.u-hero__grid { display: grid; gap: 28px; align-items: center; }
.u-hero .eyebrow { margin-bottom: 14px; }
.u-hero h1 { font-size: 30px; line-height: 1.1; color: var(--ink-hi); margin-bottom: 14px; }
.u-hero__lede { color: var(--ink-2); font-size: 17px; line-height: 1.55; margin-bottom: 20px; max-width: 560px; }
.u-stats { display: flex; gap: 12px 22px; flex-wrap: wrap; font-size: 13px; color: var(--ink-3); }
.u-stats b { display: block; font-size: 24px; line-height: 1.25; color: #fff; font-weight: 700; letter-spacing: -.02em; }

.u-video {
  aspect-ratio: 16 / 9; border-radius: 14px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, #1E293B, #0F172A); border: 1px solid #334155;
}
.u-video__bg { position: absolute; inset: 0; width: 100%; height: 100%; }
.u-video__play { position: absolute; inset: 0; display: grid; place-items: center; }
.u-video__play div {
  width: 68px; height: 68px; border-radius: 50%; background: var(--blue);
  display: grid; place-items: center; box-shadow: 0 10px 30px rgba(25, 80, 226, .5);
}
.u-video__play svg { width: 26px; height: 26px; fill: #fff; stroke: none; margin-left: 4px; }
.u-video__cap {
  position: absolute; left: 14px; bottom: 12px; right: 14px; width: fit-content; max-width: calc(100% - 28px);
  font-size: 13px; color: #CBD5E1; background: rgba(15, 23, 42, .78);
  padding: 4px 10px; border-radius: 999px;
}

@media (min-width: 900px) {
  .u-hero { padding: 40px 0 48px; }
  .u-hero__grid { grid-template-columns: 1.1fr 1fr; gap: 40px; }
  .u-hero h1 { font-size: 38px; }
}

/* ------------------------------------------------- sticky search + chips -- */
.u-bar {
  position: sticky; top: 58px; z-index: 40;
  background: var(--u-card); border-bottom: 1px solid var(--u-line);
}
.u-bar__in { display: flex; gap: 10px; align-items: center; padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; }
.u-search {
  flex: 1 1 220px; min-width: 0; display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--u-line); border-radius: 10px; padding: 9px 12px;
  color: var(--u-ink3); background: var(--u-bg);
}
.u-search:focus-within { border-color: var(--u-blue); }
.u-search input {
  border: 0; outline: 0; background: transparent; font: inherit; font-size: 16px;
  color: var(--u-ink); width: 100%; min-width: 0;
}
.u-search input::placeholder { color: var(--u-ink3); }
.u-chips { display: flex; gap: 6px; }
.u-chip {
  border: 1px solid var(--u-line); background: var(--u-card); color: var(--u-ink2);
  border-radius: 999px; padding: 7px 14px; font: inherit; font-size: 13.5px; font-weight: 500; cursor: pointer;
}
.u-chip:hover { border-color: var(--u-ink3); }
.u-chip.on { background: var(--u-ink); color: var(--u-card); border-color: var(--u-ink); }

/* ---------------------------------------------------------------- layout -- */
.u-surface { background: var(--u-bg); color: var(--u-ink); }
.u-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; padding-top: 22px; padding-bottom: 60px; }
.u-main { min-width: 0; }
.u-main a { color: var(--u-blue); }
.u-main a:hover { text-decoration: underline; color: var(--u-blue); }

.u-toc { display: flex; gap: 4px; overflow-x: auto; margin: 0 calc(-1 * var(--pad)); padding: 0 var(--pad) 4px; scrollbar-width: none; }
.u-toc::-webkit-scrollbar { display: none; }
.u-toc a {
  display: flex; justify-content: space-between; gap: 10px; white-space: nowrap;
  padding: 8px 10px; border-radius: 8px; color: var(--u-ink2); font-size: 14px;
}
.u-toc a:hover, .u-toc a.on { background: var(--u-blue50); color: var(--u-blue); }
.u-toc small { color: var(--u-ink3); display: none; }

@media (min-width: 900px) {
  .u-layout { grid-template-columns: 220px minmax(0, 1fr); gap: 28px; padding-top: 26px; }
  .u-toc {
    position: sticky; top: 136px; align-self: start;
    flex-direction: column; overflow: visible; margin: 0; padding: 0;
  }
  .u-toc a { white-space: normal; }
  .u-toc small { display: inline; }
}

/* -------------------------------------------------------------- chapters -- */
.u-chapter { margin-bottom: 34px; scroll-margin-top: 140px; }
.u-chapter > h2 { font-size: 22px; letter-spacing: -.02em; margin: 0 0 14px; color: var(--u-ink); }
.u-chapter[hidden] { display: none; }
.u-empty { color: var(--u-ink3); margin: 0 0 34px; }

/* blue list box ("You asked" in the mockup) */
.u-box { background: var(--u-blue50); border: 1px solid var(--u-blue-line); border-radius: 14px; padding: 16px 18px; }
.u-box h2 { margin: 0 0 4px; font-size: 16px; letter-spacing: -.01em; display: flex; gap: 8px; align-items: center; color: var(--u-blue); }
.u-box__sub { color: var(--u-ink2); margin: 0 0 8px; font-size: 14.5px; }
.u-box ul { margin: 8px 0 0; padding-left: 20px; color: var(--u-ink2); }
.u-box li { margin: 4px 0; }
.u-box--pilot { background: var(--u-green50); border-color: color-mix(in srgb, var(--u-green) 30%, transparent); }
.u-box--pilot h2 { color: var(--u-green); }

/* ----------------------------------------------------------------- cards -- */
.u-card {
  background: var(--u-card); border: 1px solid var(--u-line); border-radius: 14px;
  margin-bottom: 12px; overflow: hidden; scroll-margin-top: 140px; box-shadow: var(--u-shadow);
}
.u-card[hidden] { display: none; }
.u-card__head { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; }
.u-ic {
  width: 38px; height: 38px; border-radius: 10px; background: var(--u-blue50); color: var(--u-blue);
  display: grid; place-items: center; flex: none;
}
.u-card__title { min-width: 0; flex: 1; }
.u-card h3 { margin: 0; font-size: 17px; letter-spacing: -.015em; line-height: 1.3; color: var(--u-ink); }
.u-card__title p { margin: 4px 0 0; color: var(--u-ink2); font-size: 15px; }
.u-toggle {
  all: unset; cursor: pointer; display: inline; font: inherit; color: inherit;
}
.u-toggle:focus-visible { outline: 2px solid var(--u-blue); outline-offset: 3px; border-radius: 3px; }
.u-tags { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.u-tag { font-size: 11.5px; font-weight: 600; border-radius: 999px; padding: 2px 9px; }
.u-tag.f { background: var(--u-green50); color: var(--u-green); }
.u-tag.o { background: var(--u-amber50); color: var(--u-amber); }
.u-tag.e { background: var(--u-blue50); color: var(--u-blue); }
.u-chev { margin-left: auto; color: var(--u-ink3); transition: transform .2s; margin-top: 4px; }

.u-card__body { padding: 0 18px 18px; }

/* Collapsing only applies once the script has run (html.u-js), so the page
   reads in full without JavaScript. Highlights never collapse. */
.u-js .u-card[data-highlight="false"]:not(.u-card--short) .u-card__head { cursor: pointer; }
.u-js .u-card[data-highlight="false"]:not(.u-card--short):not(.open) .u-card__body { display: none; }
.u-js .u-card.open .u-chev { transform: rotate(180deg); }
.u-card[data-highlight="true"] .u-chev, .u-card--short .u-chev { display: none; }
.u-js .u-card:not([data-highlight="false"]) .u-card__head,
.u-card[data-highlight="true"] .u-card__head { cursor: default; }
.u-card[data-highlight="true"] .u-toggle { cursor: text; }

.u-trio { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; margin-bottom: 12px; }
.u-trio > div { border-radius: 10px; padding: 10px 12px; font-size: 14px; line-height: 1.5; }
.u-trio b { display: block; font-size: 11px; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 3px; }
.t1 { background: var(--u-red50); color: var(--u-red-ink); }
.t2 { background: var(--u-blue50); color: var(--u-ink2); }
.t3 { background: var(--u-green50); color: var(--u-ink2); }
.t1 b { color: var(--u-red); }
.t2 b { color: var(--u-blue); }
.t3 b { color: var(--u-green); }

/* "Under the hood": site-only, quieter than the three parts. */
.u-hood { font-size: 13px; line-height: 1.55; color: var(--u-ink3); margin: 0 0 14px; }
.u-hood b { font-weight: 600; color: var(--u-ink2); }

/* Media slots. Real files drop into [data-media-slot]; until then a labeled
   placeholder. Highlight = 16:9 clip; everything else = smaller screenshot. */
.u-media {
  border: 1.5px dashed var(--u-line); border-radius: 10px; background: var(--u-media);
  display: grid; place-items: center; text-align: center; padding: 12px;
  color: var(--u-ink3); font-family: var(--mono); font-size: 12px; letter-spacing: .04em;
  aspect-ratio: 16 / 10; max-width: 320px;
}
.u-card[data-highlight="true"] .u-media { aspect-ratio: 16 / 9; max-width: 720px; width: 100%; font-size: 13px; }
.u-media__clip { display: none; }
.u-card[data-highlight="true"] .u-media__clip { display: inline; }
.u-card[data-highlight="true"] .u-media__shot { display: none; }

@media (min-width: 900px) {
  .u-trio { grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); }
  .u-card__body { padding-left: 70px; }
  .u-card[data-highlight="true"] h3 { font-size: 19px; }
  .u-card[data-highlight="true"] { border-color: var(--u-blue-line); }
}

/* ------------------------------------------------------ everything else -- */
.u-more { background: var(--u-card); border: 1px solid var(--u-line); border-radius: 14px; padding: 4px 18px; }
.u-more details { border-bottom: 1px solid var(--u-line); padding: 12px 0; }
.u-more details:last-child { border-bottom: 0; }
.u-more summary {
  cursor: pointer; font-weight: 600; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 12px; color: var(--u-ink);
}
.u-more summary::-webkit-details-marker { display: none; }
.u-more summary svg.i { color: var(--u-ink3); transition: transform .2s; }
.u-more details[open] summary svg.i { transform: rotate(180deg); }
.u-more p { margin: 8px 0 2px; color: var(--u-ink2); font-size: 15px; }
.u-more details[hidden] { display: none; }

/* --------------------------------------------------------------- roadmap -- */
.u-road { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.u-road__col { background: var(--u-card); border: 1px solid var(--u-line); border-radius: 14px; padding: 16px 18px; }
.u-road__col h3 {
  display: flex; align-items: center; gap: 8px; margin: 0 0 8px;
  font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
  color: var(--u-ink3);
}
.u-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--u-ink3); flex: none; }
.u-road__col--now h3 { color: var(--u-blue); }
.u-road__col--now .u-dot { background: var(--u-blue); }
.u-road ul { margin: 0; padding-left: 20px; color: var(--u-ink2); }
.u-road li { margin: 6px 0; }
@media (min-width: 760px) { .u-road { grid-template-columns: 1fr 1fr; } }
.u-toc a[hidden] { display: none; }
/* On phones the search row and chips stack, so the sticky stack is taller. */
@media (max-width: 899px) { .u-chapter, .u-card { scroll-margin-top: 186px; } }

/* real clips in the media slots */
.u-media.u-media--clip { border: 0; padding: 0; background: none; aspect-ratio: auto; max-width: 720px; width: 100%; display: block; }
.u-hero-clip { max-width: 960px; margin: 28px auto 0; }