/* Robonix Package Catalog — theme layer over Bootstrap 5.3.
 *
 * Loaded after assets/vendor/bootstrap/bootstrap.min.css. Layout, grid, the
 * navbar and dark mode all come from Bootstrap; this file only retunes its
 * CSS variables and adds the few components Bootstrap has no equivalent for
 * (kind chips, listing rows, the skill shelf, the robot rail, README prose).
 *
 * No web fonts: the catalog is read mostly from mainland China, where a
 * fonts.googleapis.com round trip is a coin flip.
 */

/* ------------------------------------------------------------------ tokens */

:root,
[data-bs-theme="light"] {
  /* Source Sans 3 and IBM Plex Mono are self-hosted; the CJK fallbacks stay on
   * the system stack because neither family covers Chinese. */
  --bs-font-sans-serif: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Roboto, Arial, sans-serif;
  --bs-font-monospace: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo,
    Consolas, "Liberation Mono", monospace;
  --bs-body-font-size: 1rem;
  --bs-body-line-height: 1.5;

  /* White page, near-invisible hairlines, and one near-black accent. Colour is
   * carried by small marks, not by filled panels. */
  --bs-body-bg: #ffffff;
  --bs-body-color: #111827;
  --bs-emphasis-color: #000000;
  --bs-secondary-color: #4b5563;
  --bs-tertiary-color: #6b7280;
  --bs-secondary-bg: #f7f8f9;
  --bs-tertiary-bg: #f0f2f4;
  --bs-border-color: #d7dbe1;
  --bs-border-color-translucent: #d7dbe1;

  --bs-primary: #111827;
  --bs-primary-rgb: 17, 24, 39;
  --bs-link-color: #111827;
  --bs-link-color-rgb: 17, 24, 39;
  --bs-link-hover-color: #000000;
  --bs-link-hover-color-rgb: 0, 0, 0;

  --bs-border-radius: 0.5rem;
  --bs-border-radius-sm: 0.375rem;
  --bs-border-radius-lg: 0.625rem;
  --bs-border-radius-xl: 0.75rem;

  --link: #2f3f96;
  --link-hover: #1b2a72;
  --surface: #ffffff;
  --surface-hover: #fafbfc;
  --rule: #dfe3e8;          /* visible divider, stronger than a card hairline */
  --border-strong: #b6bcc6;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 2px 8px rgba(0, 0, 0, 0.07);
  --navbar-h: 60px;
}

[data-bs-theme="dark"] {
  --bs-body-bg: #0b0f16;
  --bs-body-color: #e9edf2;
  --bs-emphasis-color: #ffffff;
  --bs-secondary-color: #a8b2c1;
  --bs-tertiary-color: #7d8798;
  --bs-secondary-bg: #141a23;
  --bs-tertiary-bg: #1a212b;
  --bs-border-color: #333d4b;
  --bs-border-color-translucent: #333d4b;

  --bs-primary: #f3f5f7;
  --bs-primary-rgb: 243, 245, 247;
  --bs-link-color: #e9edf2;
  --bs-link-color-rgb: 233, 237, 242;
  --bs-link-hover-color: #ffffff;
  --bs-link-hover-color-rgb: 255, 255, 255;

  --link: #93a6f5;
  --link-hover: #b8c4ff;
  --surface: #0b0f16;
  --surface-hover: #111721;
  --rule: #2c3542;
  --border-strong: #47525f;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 2px 10px rgba(0, 0, 0, 0.55);
}

/* One hue per provider kind, reused by chips, cards and facets so a kind is
 * recognisable before its label is read. */
:root,
[data-bs-theme="light"] {
  /* Each kind gets a saturated -solid used on the icon tile and card accent,
   * plus the softer trio for chips and tinted surfaces. */
  --k-primitive-solid: #2563eb;
  --k-primitive-bg: #e7f0fd; --k-primitive-fg: #17509e; --k-primitive-line: #cbdefa;
  --k-service-solid: #059669;
  --k-service-bg:   #e4f6ea; --k-service-fg:   #136b3c; --k-service-line: #c3e8d1;
  --k-skill-solid:  #ea8207;
  --k-skill-bg:     #fdf0d9; --k-skill-fg:     #8a5807; --k-skill-line: #f3d9a7;
  --k-robot-solid:  #7c3aed;
  --k-robot-bg:     #eee8fd; --k-robot-fg:     #57389f; --k-robot-line: #dccffa;
  --k-warn-bg:      #fdf3e2; --k-warn-fg:      #8a5308; --k-warn-line: #f0d5a4;
}
[data-bs-theme="dark"] {
  --k-primitive-solid: #4f83f1;
  --k-primitive-bg: #16243c; --k-primitive-fg: #8fb6f5; --k-primitive-line: #23375a;
  --k-service-solid: #17a673;
  --k-service-bg:   #12291d; --k-service-fg:   #79cf9e; --k-service-line: #1e4030;
  --k-skill-solid:  #d98324;
  --k-skill-bg:     #2e2413; --k-skill-fg:     #e6b567; --k-skill-line: #4a3a1c;
  --k-robot-solid:  #8b5cf6;
  --k-robot-bg:     #221a3a; --k-robot-fg:     #b39bf0; --k-robot-line: #362a58;
  --k-warn-bg:      #2c2214; --k-warn-fg:      #f0c073; --k-warn-line: #574220;
}

/* -------------------------------------------------------------- base tweaks */

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

main { flex: 1 0 auto; padding-bottom: 4.5rem; }

.container-xxl { max-width: 1240px; }

h1, h2, h3, h4, h5, h6 { letter-spacing: -0.015em; font-weight: 650; }

/* A link has to look clickable. The accent is near-black here, so colour
 * alone cannot carry it — content links are underlined outright and every
 * link gets a hover state. Chrome that is obviously interactive for other
 * reasons (buttons, nav items, whole-card links, pills) opts out below. */
a { text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

.navbar-brand:hover,
.nav-link:hover,
.btn:hover,
.icon-btn:hover,
.rail-link:hover,
.page-link:hover,
.tag:hover,
.entry-name:hover,
.card-link-block:hover,
.card-link-block:hover * { text-decoration: none; }

/* Links sitting in running content: underlined at rest, accented on hover.
 * The API table's links wrap <code>, so without this they read as inline
 * code and nobody would think to click them. */
.api-table a,
.kv a,
a.dep-target,
.aside-card a:not(.btn):not(.tag),
.field-help a,
.check-list a,
.section-more,
.prose a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: color-mix(in srgb, currentColor 35%, transparent);
}
.api-table a:hover,
.kv a:hover,
a.dep-target:hover,
.aside-card a:not(.btn):not(.tag):hover,
.field-help a:hover,
.check-list a:hover {
  color: var(--link-hover);
  text-decoration-color: currentColor;
}

img { max-width: 100%; height: auto; }

.card {
  --bs-card-bg: var(--surface);
  --bs-card-border-radius: var(--bs-border-radius-xl);
  --bs-card-inner-border-radius: calc(var(--bs-border-radius-xl) - 1px);
}

.btn {
  --bs-btn-font-weight: 570;
  --bs-btn-font-size: 0.9375rem;
  --bs-btn-padding-y: 0.4rem;
  --bs-btn-padding-x: 0.85rem;
  --bs-btn-border-radius: var(--bs-border-radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}
.btn svg { width: 15px; height: 15px; flex: none; }
.btn-outline-secondary {
  --bs-btn-color: var(--bs-body-color);
  --bs-btn-border-color: var(--border-strong);
  --bs-btn-bg: var(--surface);
  --bs-btn-hover-color: var(--bs-body-color);
  --bs-btn-hover-bg: var(--bs-secondary-bg);
  --bs-btn-hover-border-color: var(--border-strong);
  --bs-btn-active-color: var(--bs-body-color);
  --bs-btn-active-bg: var(--bs-tertiary-bg);
  --bs-btn-active-border-color: var(--border-strong);
}
.btn-primary {
  --bs-btn-bg: var(--bs-primary);
  --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-bg: var(--bs-link-hover-color);
  --bs-btn-hover-border-color: var(--bs-link-hover-color);
  --bs-btn-active-bg: var(--bs-link-hover-color);
  --bs-btn-active-border-color: var(--bs-link-hover-color);
}
[data-bs-theme="dark"] .btn-primary {
  --bs-btn-color: #0b0f16;
  --bs-btn-hover-color: #0b0f16;
  --bs-btn-active-color: #0b0f16;
}
.btn { transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease, transform 90ms ease; }
.btn:active { transform: translateY(1px); }

code { color: inherit; }

/* ------------------------------------------------------------------ navbar */

.site-nav {
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--bs-border-color);
  --bs-navbar-padding-y: 0.5rem;
}
@supports not (backdrop-filter: blur(1px)) {
  .site-nav { background: var(--surface); }
}
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.95rem;
  font-weight: 680;
  letter-spacing: -0.02em;
  color: var(--bs-body-color);
}
.navbar-brand:hover { color: var(--bs-body-color); text-decoration: none; }
.navbar-brand img { width: 26px; height: 23px; }
.navbar-brand span { color: var(--bs-secondary-color); font-weight: 500; }

.site-nav .nav-link {
  --bs-nav-link-color: var(--bs-secondary-color);
  --bs-nav-link-hover-color: var(--bs-body-color);
  --bs-nav-link-font-weight: 550;
  font-size: 1rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--bs-border-radius-sm);
}
.site-nav .nav-link:hover { background: var(--bs-secondary-bg); }
.site-nav .nav-link[aria-current="page"] {
  color: var(--bs-primary);
  background: color-mix(in srgb, var(--bs-primary) 11%, transparent);
}

/* Search sits in the navbar on every page, never in the page body. */
.site-search { position: relative; flex: 1 1 auto; max-width: 460px; }
.site-search svg {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--bs-tertiary-color);
  pointer-events: none;
}
.site-search .form-control {
  height: 36px;
  padding-inline: 2.05rem 2.6rem;
  font-size: 0.875rem;
  background: var(--bs-secondary-bg);
  border-radius: 50rem;
}
.site-search .form-control:focus { background: var(--surface); }
.site-search kbd {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  padding: 1px 6px;
  font-size: 0.8125rem;
  color: var(--bs-tertiary-color);
  background: var(--surface);
  border: 1px solid var(--bs-border-color);
  border-radius: 5px;
  pointer-events: none;
}
.site-search .form-control:focus ~ kbd { opacity: 0; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  color: var(--bs-secondary-color);
  background: none;
  border: 0;
  border-radius: var(--bs-border-radius-sm);
}
.icon-btn:hover { color: var(--bs-body-color); background: var(--bs-secondary-bg); text-decoration: none; }
.icon-btn svg { width: 17px; height: 17px; }
/* The button shows which of the three states is selected, not which theme
 * happens to be rendering: auto is a half-filled disc, the others their sun
 * and moon. */
.icon-btn .icon-auto,
.icon-btn .icon-light,
.icon-btn .icon-dark { display: none; }
[data-theme-pref="auto"] .icon-btn .icon-auto,
[data-theme-pref="light"] .icon-btn .icon-light,
[data-theme-pref="dark"] .icon-btn .icon-dark { display: block; }

/* ------------------------------------------------------------------- chips */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0.1rem 0.5rem;
  border: 1px solid transparent;
  border-radius: 50rem;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
}
.chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: currentColor;
  transform: rotate(45deg);
  opacity: 0.85;
}
.chip-primitive { background: var(--k-primitive-bg); color: var(--k-primitive-fg); border-color: var(--k-primitive-line); }
.chip-service   { background: var(--k-service-bg);   color: var(--k-service-fg);   border-color: var(--k-service-line); }
.chip-skill     { background: var(--k-skill-bg);     color: var(--k-skill-fg);     border-color: var(--k-skill-line); }
.chip-robot     { background: var(--k-robot-bg);     color: var(--k-robot-fg);     border-color: var(--k-robot-line); }
.chip-warn      { background: var(--k-warn-bg);      color: var(--k-warn-fg);      border-color: var(--k-warn-line); }
.chip-warn::before { border-radius: 50%; transform: none; }
.chip-plain {
  background: var(--bs-secondary-bg);
  color: var(--bs-secondary-color);
  border-color: var(--bs-border-color);
  font-family: var(--bs-font-monospace);
  font-size: 0.875rem;
  font-weight: 500;
}
.chip-plain::before { display: none; }

/* Tags are buttons on listing pages (they apply a filter) and inert elsewhere;
 * both render identically. */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.6rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--bs-body-color);
  background: var(--surface);
  border: 1px solid var(--bs-border-color);
  border-radius: 50rem;
  box-shadow: var(--shadow-card);
  white-space: nowrap;
}
button.tag { cursor: pointer; }
button.tag:hover { color: var(--bs-body-color); background: var(--bs-tertiary-bg); border-color: var(--border-strong); }
button.tag[aria-pressed="true"] {
  color: #fff;
  background: var(--bs-emphasis-color);
  border-color: var(--bs-emphasis-color);
  font-weight: 570;
}
[data-bs-theme="dark"] button.tag[aria-pressed="true"] { color: #0b0f16; }

/* -------------------------------------------------------------- home: hero */

/* The banner had nothing in it but text pressed against the navbar: air, a
 * soft wash, and a slow drift of the four kind marks fill it. */
.hero {
  position: relative;
  padding-block: 3.25rem 2rem;
}
/* Higher specificity than the `.hero > *` stacking rule below, which would
 * otherwise turn these decorations back into laid-out boxes.
 * `closest-side` ellipses reach full transparency at their own bounds, so the
 * wash has no edge to clip — an earlier version blurred a hard-edged box and
 * left a visible rectangle across the banner. */
.hero > .hero-glow {
  position: absolute;
  inset: -5rem -6% auto -6%;
  height: 20rem;
  z-index: 0;
  pointer-events: none;
  /* Every ellipse sits wholly inside the box so none is cut off at an edge,
   * and a mask feathers the box itself away on all four sides. Backgrounds do
   * not paint outside their element, so anything crossing the edge shows as a
   * straight line. */
  background:
    radial-gradient(closest-side, color-mix(in srgb, var(--k-primitive-solid) 18%, transparent), transparent 100%) 22% 45% / 46% 120% no-repeat,
    radial-gradient(closest-side, color-mix(in srgb, var(--k-skill-solid) 15%, transparent), transparent 100%) 55% 20% / 38% 100% no-repeat,
    radial-gradient(closest-side, color-mix(in srgb, var(--k-robot-solid) 15%, transparent), transparent 100%) 84% 55% / 40% 110% no-repeat;
  -webkit-mask-image: radial-gradient(115% 95% at 45% 35%, #000 35%, transparent 100%);
  mask-image: radial-gradient(115% 95% at 45% 35%, #000 35%, transparent 100%);
}
[data-bs-theme="dark"] .hero > .hero-glow { opacity: 0.55; }

.hero > .hero-marks {
  position: absolute;
  inset: 0 0 auto auto;
  z-index: 1;
  display: flex;
  gap: 0.9rem;
  padding: 1.6rem 0.25rem 0 0;
  pointer-events: none;
}
.hero-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  color: var(--k);
  background: color-mix(in srgb, var(--k) 11%, var(--bs-body-bg));
  border: 1px solid color-mix(in srgb, var(--k) 26%, transparent);
  animation: drift 7s ease-in-out infinite;
}
.hero-mark svg { width: 22px; height: 22px; }
.hero-mark:nth-child(1) { --k: var(--k-primitive-solid); animation-delay: 0s; }
.hero-mark:nth-child(2) { --k: var(--k-service-solid);   animation-delay: 0.7s; }
.hero-mark:nth-child(3) { --k: var(--k-skill-solid);     animation-delay: 1.4s; }
.hero-mark:nth-child(4) { --k: var(--k-robot-solid);     animation-delay: 2.1s; }
@keyframes drift {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-7px); }
}
@media (max-width: 1199.98px) { .hero > .hero-marks { display: none; } }

.section-head h2 { font-size: 1.0625rem; }
.section-head p { color: var(--bs-secondary-color); font-size: 0.9375rem; max-width: 78ch; }
/* Underlined at rest like every other content link — the trailing arrow
 * alone was not enough to read as clickable. */
.section-more {
  font-size: 0.9375rem;
  font-weight: 550;
  white-space: nowrap;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, currentColor 32%, transparent);
}
.section-more:hover {
  color: var(--link-hover);
  text-decoration-color: currentColor;
}
.section-more svg,
.card-go svg { width: 14px; height: 14px; flex: none; }

/* Interactive cards. Bootstrap's .card is a static surface. */
.card-link-block {
  color: inherit;
  transition: border-color 130ms, box-shadow 130ms, transform 130ms;
}
.card-link-block:hover {
  color: inherit;
  text-decoration: none;
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card);
  transform: translateY(-1px);
}
.card-name {
  font-family: var(--bs-font-monospace);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  overflow-wrap: anywhere;
}
.card-desc {
  color: var(--bs-secondary-color);
  font-size: 0.9375rem;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-foot { color: var(--bs-tertiary-color); font-size: 0.875rem; }
.card-more {
  border-style: dashed;
  color: var(--bs-secondary-color);
  font-size: 0.9375rem;
  font-weight: 550;
  min-height: 6rem;
}
.card-more:hover { color: var(--bs-primary); }
.card-go { font-size: 0.9375rem; font-weight: 570; color: var(--bs-primary); }

/* Robot shelf. A horizontal scroller has no Bootstrap equivalent. */
.robot-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(190px, 1fr);
  gap: 0.875rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.robot-rail > * { scroll-snap-align: start; }
.robot-shot {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--bs-secondary-bg);
  border-bottom: 1px solid var(--bs-border-color);
}
.robot-shot img { width: 100%; height: 100%; object-fit: cover; }
.robot-shot span {
  color: var(--bs-tertiary-color);
  font-family: var(--bs-font-monospace);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.snippet {
  padding: 0.8rem 0.9rem;
  overflow-x: auto;
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius);
  font-size: 0.875rem;
  line-height: 1.6;
}
.snippet code { background: none; padding: 0; font-size: inherit; }

/* ------------------------------------------------------------ listing page */

/* Sticky alone is not enough: a rail taller than the viewport would pin in
 * place with its lower half permanently out of reach. Cap it and let it take
 * its own scrollbar. */
.facets,
.detail-aside {
  position: sticky;
  top: calc(var(--navbar-h) + 1rem);
  max-height: calc(100dvh - var(--navbar-h) - 2rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  padding-right: 0.9rem;
}
/* A rule, not a panel. The filters read as part of the page. */
.facets { border-right: 1px solid var(--rule); }
@media (max-width: 991.98px) { .facets { border-right: 0; padding-right: 0; } }
/* Keep the sticky rails out of the way of the scrollbar gutter. */
.facets::-webkit-scrollbar,
.detail-aside::-webkit-scrollbar { width: 6px; }
.facets::-webkit-scrollbar-thumb,
.detail-aside::-webkit-scrollbar-thumb {
  background: var(--bs-border-color);
  border-radius: 3px;
}
.facet-pills { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.facet-title {
  font-size: 0.875rem;
  font-weight: 550;
  color: var(--bs-secondary-color);
}
/* Filters are bordered pills carrying their kind's colour, the way a model hub
 * lists tasks and libraries — borderless grey text gave the rail no structure. */
.facet-option {
  --k: var(--bs-secondary-color);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.7rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--bs-body-color);
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--bs-border-color);
  border-radius: 999px;
  box-shadow: var(--shadow-card);
}
.facet-option.k-primitive { --k: var(--k-primitive-solid); }
.facet-option.k-service   { --k: var(--k-service-solid); }
.facet-option.k-skill     { --k: var(--k-skill-solid); }
.facet-option.k-robot     { --k: var(--k-robot-solid); }
.facet-option svg { width: 16px; height: 16px; flex: none; color: var(--k); }
.facet-option:hover { border-color: var(--border-strong); background: var(--surface-hover); }
.facet-option[aria-pressed="true"] {
  color: #fff;
  background: var(--bs-emphasis-color);
  border-color: var(--bs-emphasis-color);
}
[data-bs-theme="dark"] .facet-option[aria-pressed="true"] { color: #0b0f16; }
.facet-option[aria-pressed="true"] svg { color: currentColor; }
.facet-option .n { font-size: 0.875rem; color: var(--bs-tertiary-color); font-variant-numeric: tabular-nums; }
.facet-option[aria-pressed="true"] .n { color: currentColor; opacity: 0.75; }

.facet-more {
  padding: 0;
  font-size: 0.9375rem;
  font-weight: 550;
  color: var(--bs-primary);
  background: none;
  border: 0;
}
.facet-more:hover { text-decoration: underline; }

.result-count { color: var(--bs-secondary-color); font-size: 0.9375rem; }
.result-count b { color: var(--bs-body-color); font-weight: 620; font-variant-numeric: tabular-nums; }
.sort-field { color: var(--bs-secondary-color); font-size: 0.9375rem; }
.sort-field .form-select {
  width: auto;
  padding-block: 0.3rem;
  font-size: 0.9375rem;
  background-color: var(--surface);
  border-color: var(--border-strong);
  border-radius: var(--bs-border-radius-sm);
}

/* A registry is a list, not a gallery: one column of low-contrast rows, each a
 * hairline border over the page rather than a filled panel. Colour enters only
 * through the small kind mark. */
.entry-list { list-style: none; margin: 0; padding: 0; }

/* Pre-paint filter, set by the inline head script from ?kind=. Without it the
 * full list paints first and visibly snaps to the filtered set once the
 * deferred script runs. */
html[data-prefilter-kind="primitive"] [data-entry]:not([data-kind="primitive"]),
html[data-prefilter-kind="service"] [data-entry]:not([data-kind="service"]),
html[data-prefilter-kind="skill"] [data-entry]:not([data-kind="skill"]),
html[data-prefilter-kind="robot"] [data-entry]:not([data-kind="robot"]) { display: none; }

.entry-card {
  position: relative;
  --k: var(--bs-secondary-color);
  display: block;
  padding: 0.85rem 1rem;
  background: transparent;
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius);
  box-shadow: var(--shadow-card);
  transition: border-color 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}
.entry-card:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}
.entry-card.k-primitive { --k: var(--k-primitive-solid); }
.entry-card.k-service   { --k: var(--k-service-solid); }
.entry-card.k-skill     { --k: var(--k-skill-solid); }
.entry-card.k-robot     { --k: var(--k-robot-solid); }

.entry-card-top { display: flex; align-items: center; gap: 0.5rem; }

/* Small, like a repository avatar — not a filled colour block. */
.kind-tile {
  flex: none;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  color: var(--k);
  background: color-mix(in srgb, var(--k) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--k) 26%, transparent);
}
.kind-tile svg { width: 14px; height: 14px; }

.entry-name {
  font-family: var(--bs-font-monospace);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.012em;
  color: var(--bs-emphasis-color);
  overflow-wrap: anywhere;
}
.entry-card:hover .entry-name { color: var(--k); }

.entry-desc {
  margin: 0.35rem 0 0;
  color: var(--bs-secondary-color);
  font-size: 0.9375rem;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* One metadata line of small glyphs and middots. */
.entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.1rem 0.4rem;
  margin-top: 0.45rem;
  color: var(--bs-secondary-color);
  font-size: 0.875rem;
  line-height: 1.6;
}
.entry-meta > span { display: inline-flex; align-items: center; gap: 0.22rem; }
.entry-meta svg { width: 14px; height: 14px; opacity: 0.75; }
.entry-meta .sep { opacity: 0.45; }
.entry-meta .m-kind { color: var(--k); }
.entry-meta .m-kind svg { opacity: 1; }

/* Robots keep a small photograph at the left of the row. */
.entry-shot {
  float: left;
  width: 96px;
  aspect-ratio: 16 / 10;
  margin: 0 0.85rem 0.3rem 0;
  overflow: hidden;
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius-sm);
}
.entry-shot img { width: 100%; height: 100%; object-fit: cover; display: block; }
.entry-shot-empty { display: grid; place-items: center; height: 100%; color: var(--bs-tertiary-color); }
.entry-shot-empty svg { width: 22px; height: 22px; }

.entry-warning { position: relative; z-index: 2; margin-top: 0.1rem; }
.entry-warning summary {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 570;
  color: var(--k-warn-fg);
  cursor: pointer;
  list-style: none;
}
.entry-warning summary::-webkit-details-marker { display: none; }
.entry-warning summary::after { content: "▸"; font-size: 0.6875rem; transition: transform 120ms; }
.entry-warning[open] summary::after { transform: rotate(90deg); }
.warn-box {
  margin: 0.5rem 0 0;
  padding: 0.6rem 0.75rem 0.6rem 1.75rem;
  background: var(--k-warn-bg);
  border: 1px solid var(--k-warn-line);
  border-radius: var(--bs-border-radius);
  color: var(--k-warn-fg);
  font-size: 0.875rem;
  line-height: 1.55;
}
.warn-box code { font-size: 0.875rem; color: inherit; }

.pagination {
  --bs-pagination-color: var(--bs-secondary-color);
  --bs-pagination-bg: var(--surface);
  --bs-pagination-border-color: var(--bs-border-color);
  --bs-pagination-border-radius: var(--bs-border-radius-sm);
  --bs-pagination-hover-color: var(--bs-body-color);
  --bs-pagination-hover-bg: var(--bs-secondary-bg);
  --bs-pagination-hover-border-color: var(--border-strong);
  --bs-pagination-focus-bg: var(--bs-secondary-bg);
  --bs-pagination-active-bg: var(--bs-primary);
  --bs-pagination-active-border-color: var(--bs-primary);
  --bs-pagination-disabled-color: var(--bs-tertiary-color);
  --bs-pagination-disabled-bg: var(--bs-body-bg);
  --bs-pagination-disabled-border-color: var(--bs-border-color);
  --bs-pagination-font-size: 0.9375rem;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.pagination .page-link { border-radius: var(--bs-border-radius-sm); font-weight: 550; }
[data-bs-theme="dark"] .pagination { --bs-pagination-active-color: #10131c; }

/* Homepage rail. Same language as the listing filters: plain column, one rule,
 * no panel. */
.home-rail {
  position: sticky;
  top: calc(var(--navbar-h) + 1rem);
  padding-right: 0.9rem;
  border-right: 1px solid var(--rule);
}
.rail-links { display: flex; flex-direction: column; gap: 0.15rem; }
.rail-link {
  --k: var(--bs-secondary-color);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.55rem;
  border-radius: var(--bs-border-radius-sm);
  color: var(--bs-body-color);
  font-size: 0.9375rem;
  font-weight: 550;
  transition: background-color 140ms ease, color 140ms ease;
}
.rail-link:hover { background: var(--bs-secondary-bg); color: var(--bs-body-color); }
.rail-link svg { width: 15px; height: 15px; flex: none; color: var(--k); }
.rail-link .n {
  margin-left: auto;
  font-size: 0.9375rem;
  color: var(--bs-tertiary-color);
  font-variant-numeric: tabular-nums;
}
.rail-link.k-primitive { --k: var(--k-primitive-solid); }
.rail-link.k-service   { --k: var(--k-service-solid); }
.rail-link.k-skill     { --k: var(--k-skill-solid); }
.rail-link.k-robot     { --k: var(--k-robot-solid); }

@media (max-width: 991.98px) {
  /* The navbar's collapsed menu already lists Skills / Services / Primitives /
   * Robots / Submit, so the rail here would be a second copy of the same
   * links taking a whole screen before any content. */
  .home-rail { display: none; }
  /* A wash behind body text at phone width just muddies it. */
  .hero > .hero-glow { display: none; }
  .hero { padding-block: 2rem 1.25rem; }
}

/* ------------------------------------------------------------- detail page */

.crumbs { color: var(--bs-tertiary-color); font-size: 0.9375rem; }
.crumbs a { color: var(--bs-secondary-color); }

.detail-name {
  font-family: var(--bs-font-monospace);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}
.detail-desc { color: var(--bs-secondary-color); font-size: 0.95rem; max-width: 78ch; }

.readme-head {
  font-size: 0.875rem;
  font-weight: 620;
  color: var(--bs-secondary-color);
  background: var(--bs-secondary-bg);
}
.readme-head > :first-child { letter-spacing: 0.05em; text-transform: uppercase; }
.readme-head > :last-child { font-family: var(--bs-font-monospace); font-weight: 500; font-size: 0.875rem; }

.detail-aside > * { flex: none; }
.aside-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bs-secondary-color);
}
.kv { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.5rem 0.9rem; font-size: 0.9375rem; }
.kv dt { color: var(--bs-tertiary-color); font-weight: 400; white-space: nowrap; }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.kv code,
.chip-code {
  padding: 1px 5px;
  font-size: 0.875rem;
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 5px;
}

.cap-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.3rem; }
.cap-list li {
  padding: 0.35rem 0.55rem;
  font-family: var(--bs-font-monospace);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--bs-secondary-color);
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius-sm);
  word-break: break-all;
}

.dep-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.dep-list li { font-size: 0.875rem; line-height: 1.5; }
.dep-section {
  --k: var(--bs-tertiary-color);
  padding: 0.05rem 0.4rem;
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--k);
  background: color-mix(in srgb, var(--k) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--k) 26%, transparent);
  border-radius: 999px;
}
.dep-section.k-primitive { --k: var(--k-primitive-solid); }
.dep-section.k-service   { --k: var(--k-service-solid); }
.dep-section.k-skill     { --k: var(--k-skill-solid); }
.dep-name {
  font-family: var(--bs-font-monospace);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--bs-emphasis-color);
}
.dep-list code { font-size: 0.875rem; color: var(--bs-body-color); }
.dep-target { display: block; word-break: break-all; }
span.dep-target {
  font-family: var(--bs-font-monospace);
  font-size: 0.8125rem;
  color: var(--bs-tertiary-color);
}
.dep-reason { display: block; margin-top: 2px; color: var(--k-warn-fg); font-size: 0.875rem; line-height: 1.45; }

/* ------------------------------------------------- rendered README (prose) */

.prose { font-size: 0.9rem; line-height: 1.72; overflow-wrap: break-word; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose h1, .prose h2, .prose h3, .prose h4, .prose h5, .prose h6 {
  margin: 1.9em 0 0.62em;
  line-height: 1.32;
  font-weight: 650;
}
.prose h1 { font-size: 1.5em; padding-bottom: 0.32em; border-bottom: 1px solid var(--bs-border-color); }
.prose h2 { font-size: 1.27em; padding-bottom: 0.3em; border-bottom: 1px solid var(--bs-border-color); }
.prose h3 { font-size: 1.1em; }
.prose h4, .prose h5, .prose h6 { font-size: 1em; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose table, .prose pre { margin: 0 0 1.05em; }
.prose ul, .prose ol { padding-left: 1.5em; }
.prose li { margin-bottom: 0.3em; }
.prose a { text-decoration: underline; text-underline-offset: 2px; }
.prose img { max-width: 100%; border-radius: var(--bs-border-radius); }
.prose hr { height: 1px; margin: 2em 0; background: var(--bs-border-color); border: 0; opacity: 1; }
.prose blockquote {
  padding: 2px 0 2px 16px;
  border-left: 3px solid var(--border-strong);
  color: var(--bs-secondary-color);
}
.prose blockquote > :last-child { margin-bottom: 0; }
.prose code {
  padding: 0.15em 0.4em;
  font-size: 0.875em;
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 5px;
}
.prose pre {
  padding: 0.9rem 1rem;
  overflow-x: auto;
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius);
  font-size: 0.875rem;
  line-height: 1.62;
}
.prose pre code { padding: 0; background: none; border: 0; font-size: inherit; }
.prose table {
  display: block;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.prose th, .prose td { padding: 0.45rem 0.8rem; text-align: left; border: 1px solid var(--bs-border-color); }
.prose th { background: var(--bs-secondary-bg); font-weight: 620; }

/* ---------------------------------------------------------------- api page */

.api-table th {
  font-size: 0.875rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bs-tertiary-color);
  white-space: nowrap;
}
.api-table code,
.method {
  padding: 1px 5px;
  font-size: 0.875rem;
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 5px;
}
.method {
  font-family: var(--bs-font-monospace);
  font-weight: 620;
  color: var(--k-service-fg);
  background: var(--k-service-bg);
  border-color: var(--k-service-line);
}
.api-json { margin: 0; padding: 1.1rem 1.25rem; max-height: 62vh; overflow: auto; font-size: 0.875rem; line-height: 1.6; }

/* ------------------------------------------------------------- submit page */

.field-label { font-size: 0.9375rem; font-weight: 570; }
.submit-input {
  font-family: var(--bs-font-monospace);
  font-size: 0.9375rem;
  background: var(--bs-secondary-bg);
}
.submit-input:focus { background: var(--surface); }
.field-help { color: var(--bs-tertiary-color); font-size: 0.875rem; line-height: 1.5; }
.field-help code, .check-list code {
  padding: 1px 4px;
  font-size: 0.875rem;
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 4px;
}
.field-error { color: var(--k-warn-fg); font-size: 0.875rem; line-height: 1.5; }
.submit-entry { padding-top: 0.9rem; margin-top: 0.9rem; border-top: 1px dashed var(--bs-border-color); }
.submit-entry-head {
  color: var(--bs-tertiary-color);
  font-size: 0.875rem;
  font-weight: 650;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.submit-remove {
  padding: 0;
  font-size: 0.875rem;
  font-weight: 550;
  text-transform: none;
  letter-spacing: 0;
  color: var(--bs-tertiary-color);
  background: none;
  border: 0;
}
.submit-remove:hover { color: var(--k-warn-fg); }
.check-list { color: var(--bs-secondary-color); font-size: 0.9375rem; line-height: 1.6; }
.check-list li { margin-bottom: 0.4rem; }

/* ------------------------------------------------------------------ footer */

.site-footer {
  border-top: 1px solid var(--bs-border-color);
  background: var(--surface);
  color: var(--bs-secondary-color);
  font-size: 0.9375rem;
}
.site-footer a { color: var(--bs-secondary-color); text-decoration: underline; text-underline-offset: 2px; }
.site-footer a:hover { color: var(--bs-body-color); }

/* -------------------------------------------------------------- responsive */

@media (max-width: 991.98px) {
  .facets, .detail-aside { position: static; }
}

@view-transition { navigation: auto; }
::view-transition-old(root) { animation: fade-out 90ms ease both; }
::view-transition-new(root) { animation: fade-in 140ms ease both; }
@keyframes fade-out { to { opacity: 0; } }
@keyframes fade-in { from { opacity: 0; } }
/* The masthead is the same on every page, so hold it still across the fade. */
.site-nav { view-transition-name: site-nav; }

/* Motion. Short and functional: results settle in when a filter changes, and
 * controls acknowledge a press. Nothing loops, nothing decorates. */
.tag, .facet-option, .page-link, .nav-link, .icon-btn, .chip {
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}
.section-more svg, .card-go svg { transition: transform 150ms ease; }
.section-more:hover svg, .card-link-block:hover .card-go svg { transform: translateX(2px); }
.card-link-block { transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-mark { animation: none; }
  ::view-transition-old(root), ::view-transition-new(root) { animation: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}