/* ==== PythonQL design system (prefix: pyql) ================================
   Built on Bulma 1.0 (self hosted). Bulma's own CSS custom properties are
   re-mapped below so no stock Bulma fingerprint survives. Layout v2:
   a fixed documentation rail on the left and an editorial content canvas,
   with open choices taken from design seed 377587626.
   ========================================================================== */

:root {
  /* footprint colours */
  --pyql-violet-900: #160126;
  --pyql-violet-800: #22034a;
  --pyql-violet-700: #2c0860;
  --pyql-violet-600: #3b0f7d;
  --pyql-lilac: #c4a8e6;
  --pyql-lilac-300: #d6c3f1;
  --pyql-lilac-100: #ece2fa;
  --pyql-paper: #f6f2fc;
  --pyql-amber: #ffb40a;
  --pyql-amber-700: #d99a00;
  --pyql-amber-100: #fff0cc;

  /* seed-derived secondary (seed % 360 = 186 -> teal) */
  --pyql-teal: #1fb6c9;
  --pyql-teal-soft: #7fe0e8;

  /* ink */
  --pyql-ink: #26094a;
  --pyql-ink-soft: #4a3a63;
  --pyql-on-dark: #f0eaf9;
  --pyql-on-dark-muted: #b7bcc1;
  --pyql-on-light-muted: #5f5479;

  /* code surface */
  --pyql-code-bg: #120021;
  --pyql-code-bg-2: #1b0335;
  --pyql-code-key: #ffb40a;
  --pyql-code-str: #78e3c6;
  --pyql-code-num: #ff9d6b;
  --pyql-code-com: #8d84ab;
  --pyql-code-pln: #e7ddfb;

  /* seed-derived radius scale (seed % 7 = 3 -> 6px keyline) */
  --pyql-r-s: 3px;
  --pyql-r: 6px;
  --pyql-r-l: 10px;

  /* seed-derived shadow depth: medium */
  --pyql-shadow-s: 0 1px 2px rgba(22, 1, 38, 0.16);
  --pyql-shadow: 0 16px 34px -20px rgba(22, 1, 38, 0.6);
  --pyql-shadow-l: 0 30px 60px -26px rgba(22, 1, 38, 0.66);

  /* spacing scale: spacious (seed % 8 = 2) */
  --pyql-rail-w: 272px;
  --pyql-gap: 1.5rem;
  --pyql-band: clamp(3.6rem, 7vw, 7rem);
  --pyql-grid: rgba(255, 255, 255, 0.05);

  --pyql-font: Verdana, Geneva, "DejaVu Sans", Tahoma, Arial, sans-serif;
  --pyql-font-code: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* Bulma 1.x variable re-mapping */
  --bulma-scheme-main: var(--pyql-violet-800);
  --bulma-background: var(--pyql-violet-800);
  --bulma-text: var(--pyql-on-dark);
  --bulma-text-strong: #ffffff;
  --bulma-primary: var(--pyql-amber);
  --bulma-link: var(--pyql-amber);
  --bulma-link-hover: var(--pyql-amber-700);
  --bulma-family-primary: var(--pyql-font);
  --bulma-family-secondary: var(--pyql-font);
  --bulma-family-code: var(--pyql-font-code);
  --bulma-body-family: var(--pyql-font);
  --bulma-title-family: var(--pyql-font);
  --bulma-radius: var(--pyql-r);
  --bulma-radius-small: var(--pyql-r-s);
  --bulma-radius-large: var(--pyql-r-l);
  --bulma-content-heading-color: #ffffff;
}

/* ---- base ---------------------------------------------------------------- */
html { scroll-behavior: smooth; }
body {
  font-family: var(--pyql-font);
  color: var(--pyql-on-dark);
  background-color: var(--pyql-violet-800);
  background-image:
    linear-gradient(var(--pyql-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--pyql-grid) 1px, transparent 1px);
  background-size: 46px 46px, 46px 46px;
  line-height: 1.65;
  padding-left: var(--pyql-rail-w);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6, .title, .subtitle {
  font-family: var(--pyql-font);
  font-weight: 700;
  letter-spacing: -0.01em;
}
a { color: var(--pyql-amber); }
a:hover { color: var(--pyql-amber-700); }
img { display: block; max-width: 100%; height: auto; }
code, pre, kbd, samp { font-family: var(--pyql-font-code); }
code {
  background: rgba(255,255,255,0.1);
  color: var(--pyql-teal-soft);
  padding: 0.12em 0.42em;
  border-radius: var(--pyql-r-s);
  font-size: 0.92em;
}
.pyql-band--paper code, .pyql-band--lilac code, .pyql-person code, .pyql-feat code {
  background: rgba(34,3,74,0.09); color: var(--pyql-violet-700);
}
.pyql-code code, .pyql-edit code { background: transparent; padding: 0; color: inherit; }
:focus-visible {
  outline: 3px solid var(--pyql-teal);
  outline-offset: 2px;
  border-radius: var(--pyql-r-s);
}

.pyql-skip {
  position: absolute; left: -999px; top: 0; z-index: 300;
  background: var(--pyql-amber); color: var(--pyql-violet-900);
  padding: 0.6rem 1rem; font-weight: 700;
}
.pyql-skip:focus { left: 0.5rem; top: 0.5rem; }
.pyql-sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.pyql-shell { width: min(1080px, calc(100% - 6vw)); margin-inline: auto; }
.pyql-shell--narrow { width: min(820px, calc(100% - 6vw)); margin-inline: auto; }
.pyql-eyebrow {
  font-size: 0.76rem; letter-spacing: 0.22em; text-transform: uppercase;
  font-weight: 700; color: var(--pyql-teal); margin-bottom: 0.9rem;
}
.pyql-eyebrow--amber { color: var(--pyql-amber); }
.pyql-lede { font-size: 1.08rem; color: var(--pyql-on-dark-muted); max-width: 68ch; }
.pyql-band--paper .pyql-lede, .pyql-band--lilac .pyql-lede { color: var(--pyql-on-light-muted); }
.pyql-rule { height: 1px; background: rgba(196,168,230,0.28); border: 0; margin: 0; }

/* ---- left documentation rail -------------------------------------------- */
.pyql-rail {
  position: fixed; inset: 0 auto 0 0; z-index: 120;
  width: var(--pyql-rail-w);
  background:
    radial-gradient(120% 60% at 0% 0%, rgba(255,180,10,0.1), transparent 60%),
    linear-gradient(180deg, #1b0330, var(--pyql-violet-800) 42%, #2a0750);
  border-right: 1px solid rgba(196,168,230,0.22);
  border-top: 4px solid var(--pyql-amber);
}
.pyql-rail__inner {
  display: flex; flex-direction: column; gap: 1.6rem;
  height: 100%; padding: 1.5rem 1.15rem 1.3rem; overflow-y: auto;
}
.pyql-rail__top { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; }
.pyql-brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; }
.pyql-brand img { width: 44px; height: 44px; }
.pyql-brand__text { line-height: 1.05; }
.pyql-brand__name {
  display: block; font-weight: 700; font-size: 1.28rem; color: #fff; letter-spacing: 0.02em;
}
.pyql-brand__tag {
  display: block; font-size: 0.63rem; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--pyql-lilac); opacity: 0.9;
}
.pyql-nav { display: block; }
.pyql-nav__list { display: flex; flex-direction: column; align-items: stretch; gap: 2px; margin: 0; padding: 0; list-style: none; }
.pyql-nav__link {
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
  padding: 0.62rem 0.7rem 0.62rem 0.9rem;
  border-left: 3px solid transparent; border-radius: 0 var(--pyql-r) var(--pyql-r) 0;
  color: #cbb8ea; font-weight: 700; font-size: 0.95rem; text-decoration: none;
  transition: background-color .16s ease, color .16s ease, transform .16s ease, border-color .16s ease;
}
.pyql-nav__link:hover { background: rgba(255,255,255,0.07); color: #fff; transform: translateX(3px); }
.pyql-nav__link[aria-current="page"] {
  background: rgba(255,180,10,0.13); border-left-color: var(--pyql-amber); color: #fff;
}
.pyql-nav__link--ext::after { content: "\2197"; font-size: 0.82em; color: var(--pyql-lilac); }
.pyql-nav__cta {
  margin-top: 0.7rem; justify-content: center;
  background: var(--pyql-amber); color: var(--pyql-violet-900); border-left-color: transparent;
  border-radius: var(--pyql-r);
}
.pyql-nav__cta:hover { background: #ffc53d; color: var(--pyql-violet-900); }
.pyql-rail__foot { margin-top: auto; display: grid; gap: 0.8rem; }
.pyql-rail__install {
  background: rgba(0,0,0,0.32); border: 1px solid rgba(196,168,230,0.26);
  border-radius: var(--pyql-r); padding: 0.7rem 0.8rem;
  font-family: var(--pyql-font-code); font-size: 0.78rem; color: var(--pyql-code-str);
  overflow-wrap: anywhere;
}
.pyql-rail__install b { color: var(--pyql-amber); font-weight: 600; }
.pyql-rail__install span { color: var(--pyql-code-com); margin-right: 0.3rem; }
.pyql-rail__meta { font-size: 0.72rem; line-height: 1.5; color: var(--pyql-on-dark-muted); margin: 0; }

/* mobile: rail becomes a top bar with a drop panel */
.pyql-burger {
  display: none; width: 46px; height: 46px; border: 2px solid var(--pyql-lilac);
  background: rgba(255,255,255,0.06); border-radius: var(--pyql-r);
  cursor: pointer; align-items: center; justify-content: center;
}
.pyql-burger span, .pyql-burger span::before, .pyql-burger span::after {
  content: ""; display: block; width: 22px; height: 2px; background: #fff;
  position: relative; transition: transform .2s ease, opacity .2s ease;
}
.pyql-burger span::before { position: absolute; top: -7px; }
.pyql-burger span::after { position: absolute; top: 7px; }
.pyql-burger[aria-expanded="true"] span { background: transparent; }
.pyql-burger[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.pyql-burger[aria-expanded="true"] span::after { transform: translateY(-7px) rotate(-45deg); }

/* ---- bands / sections ---------------------------------------------------- */
.pyql-band { padding-block: var(--pyql-band); position: relative; }
.pyql-band--paper { background: var(--pyql-paper); color: var(--pyql-ink); background-image: none; }
.pyql-band--paper h1, .pyql-band--paper h2, .pyql-band--paper h3,
.pyql-band--paper .title { color: var(--pyql-violet-800); }
.pyql-band--lilac { background: linear-gradient(160deg, var(--pyql-lilac-100), var(--pyql-lilac-300)); color: var(--pyql-violet-800); }
.pyql-band--deep { background: var(--pyql-violet-900); }
.pyql-band--edge {
  -webkit-clip-path: polygon(0 0, 100% 2.6vw, 100% 100%, 0 100%);
  clip-path: polygon(0 0, 100% 2.6vw, 100% 100%, 0 100%);
  margin-top: -2.6vw;
  padding-top: calc(var(--pyql-band) + 2.6vw);
}
.pyql-section-head { max-width: 74ch; margin-bottom: 2.4rem; }
.pyql-section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); margin-bottom: 0.6rem; }

/* editorial split: sticky label column + body */
.pyql-split { display: grid; grid-template-columns: 220px minmax(0,1fr); gap: clamp(1.5rem, 4vw, 3.4rem); }
.pyql-split__aside { align-self: start; }
.pyql-split__aside .pyql-eyebrow { margin-bottom: 0.4rem; }
.pyql-split__aside p { color: var(--pyql-on-light-muted); font-size: 0.92rem; }

/* ---- hero (editorial, stacked) ------------------------------------------ */
.pyql-hero { padding-block: clamp(2.6rem, 6vw, 5rem) clamp(1.2rem, 3vw, 2rem); }
.pyql-hero__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 3.4rem); }
.pyql-hero h1 {
  font-size: clamp(2.7rem, 5.6vw, 5rem); line-height: 1.01; margin-bottom: 1rem; color: #fff;
  max-width: 18ch;
}
.pyql-hero h1 em { color: var(--pyql-amber); font-style: normal; }
.pyql-hero__tag {
  font-size: clamp(1.05rem, 2vw, 1.35rem); color: var(--pyql-teal-soft);
  font-weight: 700; margin-bottom: 0.9rem;
}
.pyql-hero__copy { color: var(--pyql-on-dark-muted); font-size: 1.08rem; max-width: 66ch; margin-bottom: 1.7rem; }
.pyql-hero__grid > .pyql-code { width: min(820px, 100%); margin-left: auto; }
.pyql-cta-row { display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: center; }

/* ---- buttons ------------------------------------------------------------- */
.pyql-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--pyql-font); font-weight: 700; font-size: 1rem;
  padding: 0.82rem 1.45rem; border-radius: var(--pyql-r); border: 2px solid transparent;
  cursor: pointer; text-decoration: none; line-height: 1;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease;
}
.pyql-btn--primary { background: var(--pyql-amber); color: var(--pyql-violet-900); }
.pyql-btn--primary:hover { background: #ffc53d; color: var(--pyql-violet-900); transform: translateY(-3px); box-shadow: var(--pyql-shadow); }
.pyql-btn--ghost { background: transparent; color: #fff; border-color: rgba(196,168,230,0.65); }
.pyql-btn--ghost:hover { border-color: #fff; color: #fff; transform: translateY(-3px); }
.pyql-band--paper .pyql-btn--ghost, .pyql-band--lilac .pyql-btn--ghost { color: var(--pyql-violet-800); border-color: var(--pyql-violet-700); }
.pyql-band--paper .pyql-btn--ghost:hover, .pyql-band--lilac .pyql-btn--ghost:hover { background: var(--pyql-violet-800); color: #fff; }
.pyql-btn--quiet { background: rgba(255,255,255,0.08); color: var(--pyql-on-dark); border-color: transparent; }
.pyql-btn--sm { padding: 0.55rem 1rem; font-size: 0.9rem; }
.pyql-btn-row { display: flex; flex-wrap: wrap; gap: 0.7rem; }

/* ---- generic surfaces ---------------------------------------------------- */
.pyql-panel {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(196,168,230,0.28);
  border-radius: var(--pyql-r); padding: 1.6rem;
}
.pyql-band--paper .pyql-panel, .pyql-band--lilac .pyql-panel { background: #fff; border-color: rgba(34,3,74,0.12); box-shadow: var(--pyql-shadow-s); }
.pyql-panel + .pyql-panel { margin-top: 1rem; }

/* ---- feature rows (editorial list, not cards) --------------------------- */
.pyql-feats { display: grid; grid-template-columns: 1fr; border-top: 1px solid rgba(34,3,74,0.16); }
.pyql-feat {
  display: grid; grid-template-columns: 52px minmax(0,1fr);
  grid-template-areas: "ico title" "ico desc"; column-gap: 1.2rem; row-gap: 0.25rem;
  background: transparent; border: 0; border-bottom: 1px solid rgba(34,3,74,0.16);
  border-radius: 0; box-shadow: none; padding: 1.5rem 0; align-items: start;
  transition: background-color .18s ease;
}
.pyql-feat:hover { transform: none; box-shadow: none; background: rgba(34,3,74,0.035); }
.pyql-feat__ico {
  grid-area: ico; width: 44px; height: 44px; border-radius: var(--pyql-r); display: grid; place-items: center;
  background: var(--pyql-violet-800); color: var(--pyql-amber);
}
.pyql-feat__ico svg { width: 22px; height: 22px; }
.pyql-feat h3 { grid-area: title; font-size: 1.15rem; margin: 0; color: var(--pyql-violet-800); }
.pyql-feat p { grid-area: desc; color: var(--pyql-on-light-muted); font-size: 0.98rem; max-width: 70ch; margin: 0; }

/* ---- facts strip --------------------------------------------------------- */
.pyql-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid rgba(196,168,230,0.26); border-bottom: 1px solid rgba(196,168,230,0.26); }
.pyql-fact { padding: 1.3rem 1.4rem; border-left: 4px solid var(--pyql-amber); }
.pyql-fact + .pyql-fact { border-left-color: rgba(196,168,230,0.26); }
.pyql-fact:first-child { border-left-color: var(--pyql-amber); }
.pyql-fact__k { font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 0.25rem; }
.pyql-fact__v { color: var(--pyql-on-dark-muted); font-size: 0.92rem; }

/* ---- code blocks --------------------------------------------------------- */
.pyql-code {
  background: var(--pyql-code-bg); border-radius: var(--pyql-r);
  border: 1px solid rgba(196,168,230,0.22); overflow: hidden; box-shadow: var(--pyql-shadow-l);
}
.pyql-code__bar {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.7rem 0.9rem;
  background: var(--pyql-code-bg-2); border-bottom: 1px solid rgba(196,168,230,0.18);
}
.pyql-code__dot { width: 11px; height: 11px; border-radius: 50%; background: var(--pyql-lilac); opacity: 0.5; }
.pyql-code__dot:nth-child(2) { background: var(--pyql-amber); opacity: 0.8; }
.pyql-code__dot:nth-child(3) { background: var(--pyql-teal); opacity: 0.8; }
.pyql-code__name { margin-left: 0.5rem; color: var(--pyql-on-dark-muted); font-size: 0.82rem; font-family: var(--pyql-font-code); }
.pyql-code pre {
  margin: 0; padding: 1.25rem 1.3rem; overflow-x: auto;
  font-size: 0.86rem; line-height: 1.7; color: var(--pyql-code-pln);
  background: transparent; white-space: pre;
}
.pyql-code pre .k { color: var(--pyql-code-key); font-weight: 700; }
.pyql-code pre .s { color: var(--pyql-code-str); }
.pyql-code pre .n { color: var(--pyql-code-num); }
.pyql-code pre .c { color: var(--pyql-code-com); font-style: italic; }
.pyql-code pre .v { color: var(--pyql-code-pln); }

/* install command pill */
.pyql-install {
  display: inline-flex; align-items: center; gap: 0.8rem;
  background: var(--pyql-violet-900); border: 1px solid rgba(196,168,230,0.3);
  border-radius: var(--pyql-r); padding: 0.85rem 1.1rem; font-family: var(--pyql-font-code);
  color: var(--pyql-code-str); font-size: 0.98rem;
}
.pyql-install b { color: var(--pyql-amber); }

/* ---- reference pairs (still a light two-column block) ------------------- */
.pyql-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.6rem; }

/* ---- editorial index list (homepage scenarios) -------------------------- */
.pyql-indexlist { display: grid; grid-template-columns: 1fr; border-top: 1px solid rgba(34,3,74,0.16); }
.pyql-card {
  position: relative; display: grid;
  grid-template-columns: 76px minmax(0,1fr) auto;
  grid-template-areas: "idx title more" "idx desc more";
  column-gap: 1.2rem; row-gap: 0.35rem; align-items: center;
  background: transparent; border: 0; border-bottom: 1px solid rgba(34,3,74,0.16);
  border-radius: 0; box-shadow: none; padding: 1.5rem 0.4rem;
  text-decoration: none; color: var(--pyql-ink);
  transition: background-color .18s ease, padding-left .18s ease;
}
.pyql-card:hover { background: rgba(34,3,74,0.035); padding-left: 1rem; color: var(--pyql-ink); }
.pyql-card__idx { grid-area: idx; font-family: var(--pyql-font-code); font-size: 0.9rem; color: var(--pyql-teal); font-weight: 700; letter-spacing: 0.1em; }
.pyql-card h3 { grid-area: title; color: var(--pyql-violet-800); font-size: 1.3rem; margin: 0; }
.pyql-card p { grid-area: desc; color: var(--pyql-on-light-muted); margin: 0; font-size: 0.97rem; }
.pyql-card__more { grid-area: more; align-self: center; color: var(--pyql-violet-700); font-weight: 700; font-size: 0.9rem; white-space: nowrap; }
.pyql-card__more::after { content: " \2192"; }

/* ---- demo page: scenario blocks as a two-column editorial list ---------- */
.pyql-scenario {
  display: grid; grid-template-columns: 220px minmax(0,1fr);
  column-gap: clamp(1.4rem, 3.5vw, 2.8rem);
  border-top: 1px solid rgba(196,168,230,0.24);
  padding-block: 2.4rem;
  scroll-margin-top: 90px;
}
.pyql-scenario:first-of-type { border-top: 0; }
.pyql-scenario__head {
  grid-column: 1; grid-row: 1; display: flex; flex-direction: column; align-items: flex-start; gap: 0.4rem;
}
.pyql-scenario__num { font-family: var(--pyql-font-code); color: var(--pyql-amber); font-weight: 700; font-size: 1.6rem; line-height: 1; }
.pyql-scenario__head h2 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); margin: 0; color: #fff; }
.pyql-scenario > .pyql-lede { grid-column: 2; grid-row: 1; margin: 0 0 1.2rem; }
.pyql-scenario > .pyql-qlist { grid-column: 2; grid-row: 2; }

.pyql-qlist { display: grid; grid-template-columns: 1fr; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(196,168,230,0.16); }
.pyql-qlist a {
  display: flex; gap: 0.8rem; align-items: baseline;
  padding: 0.72rem 0.6rem; border-bottom: 1px solid rgba(196,168,230,0.16);
  color: var(--pyql-on-dark); text-decoration: none;
  transition: background-color .15s ease, padding-left .15s ease, color .15s ease;
}
.pyql-qlist a:hover { background: rgba(255,255,255,0.06); padding-left: 1rem; color: #fff; }
.pyql-band--paper .pyql-qlist a { border-color: rgba(34,3,74,0.16); color: var(--pyql-ink); }
.pyql-band--paper .pyql-qlist a:hover { background: rgba(34,3,74,0.035); color: var(--pyql-violet-800); }
.pyql-qlist .qn { font-family: var(--pyql-font-code); font-weight: 700; color: var(--pyql-amber); flex: none; width: 2.2rem; }
.pyql-qlist .qt { font-size: 0.98rem; }

/* ---- pills / tags -------------------------------------------------------- */
.pyql-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.pyql-tag {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.78rem; font-weight: 700; padding: 0.3rem 0.7rem;
  border-radius: 999px; background: rgba(31,182,201,0.16); color: var(--pyql-teal-soft);
  border: 1px solid rgba(31,182,201,0.35);
}

/* ---- references ---------------------------------------------------------- */
.pyql-refs { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.pyql-refs a { color: var(--pyql-teal-soft); text-decoration: none; border-bottom: 1px dashed rgba(127,224,232,0.5); }
.pyql-refs a:hover { color: #fff; }
.pyql-band--paper .pyql-refs a, .pyql-band--lilac .pyql-refs a { color: var(--pyql-violet-700); border-bottom-color: rgba(60,15,125,0.4); }
.pyql-band--paper .pyql-refs a:hover, .pyql-band--lilac .pyql-refs a:hover { color: var(--pyql-violet-900); }
.pyql-ext::after { content: " \2197"; font-size: 0.85em; }

/* ---- team: wide profile rows -------------------------------------------- */
.pyql-team { display: grid; grid-template-columns: 1fr; border-top: 1px solid rgba(34,3,74,0.16); }
.pyql-person {
  display: grid; grid-template-columns: 120px minmax(0,1fr);
  grid-template-areas: "mono role" "mono name" "mono bio";
  column-gap: 1.6rem; row-gap: 0.2rem;
  background: transparent; border: 0; border-bottom: 1px solid rgba(34,3,74,0.16);
  border-radius: 0; box-shadow: none; padding: 2rem 0.4rem; align-items: start;
  transition: background-color .18s ease;
}
.pyql-person:hover { transform: none; box-shadow: none; background: rgba(34,3,74,0.03); }
.pyql-monogram {
  grid-area: mono; width: 92px; height: 92px; border-radius: var(--pyql-r);
  display: grid; place-items: center; font-weight: 700; font-size: 1.7rem; letter-spacing: 0.04em;
  background: linear-gradient(150deg, var(--pyql-violet-800), var(--pyql-violet-600));
  color: var(--pyql-amber); border: 3px solid var(--pyql-amber);
}
.pyql-person__role { grid-area: role; display: block; color: var(--pyql-teal); font-weight: 700; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; }
.pyql-person h3 { grid-area: name; color: var(--pyql-violet-800); font-size: 1.4rem; margin: 0; line-height: 1.15; }
.pyql-person p { grid-area: bio; color: var(--pyql-on-light-muted); font-size: 0.98rem; margin: 0.35rem 0 0; max-width: 72ch; }

/* ---- query viewer (content left, sticky index right) -------------------- */
.pyql-demo { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: clamp(1.4rem, 3vw, 2.4rem); align-items: start; }
.pyql-demo > .pyql-index { order: 2; min-width: 0; }
.pyql-demo > div { order: 1; min-width: 0; }
.pyql-code, .pyql-edit { max-width: 100%; min-width: 0; }
.pyql-index { position: sticky; top: 1.2rem; max-height: calc(100vh - 2.4rem); overflow-y: auto; padding-right: 0.3rem; }
.pyql-index__group + .pyql-index__group { margin-top: 1.3rem; }
.pyql-index__title { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.16em; color: var(--pyql-teal); font-weight: 700; margin-bottom: 0.55rem; }
.pyql-index__link {
  display: flex; gap: 0.5rem; align-items: baseline;
  padding: 0.42rem 0.6rem; border-radius: var(--pyql-r); color: var(--pyql-on-dark);
  text-decoration: none; font-size: 0.88rem; border-left: 3px solid transparent;
  transition: background-color .15s ease, border-color .15s ease, transform .15s ease;
}
.pyql-index__link:hover { background: rgba(255,255,255,0.07); transform: translateX(3px); color: #fff; }
.pyql-index__link[aria-current="page"] { background: rgba(255,180,10,0.13); border-left-color: var(--pyql-amber); color: #fff; font-weight: 700; }
.pyql-index__code { font-family: var(--pyql-font-code); color: var(--pyql-amber); font-size: 0.78rem; flex: none; }

.pyql-crumbs { font-size: 0.84rem; color: var(--pyql-on-dark-muted); }
.pyql-crumbs a { color: var(--pyql-on-dark-muted); text-decoration: none; }
.pyql-crumbs a:hover { color: #fff; }
.pyql-crumbs span[aria-current] { color: #fff; }
.pyql-qtitle { font-size: clamp(1.5rem, 3vw, 2.2rem); color: #fff; margin: 0.4rem 0 0.6rem; }
.pyql-tabs { display: flex; gap: 0.4rem; border-bottom: 1px solid rgba(196,168,230,0.24); margin-bottom: 1.2rem; }
.pyql-tab {
  background: transparent; border: 0; border-bottom: 3px solid transparent;
  color: var(--pyql-on-dark-muted); font-family: var(--pyql-font); font-weight: 700;
  font-size: 0.95rem; padding: 0.7rem 1rem; cursor: pointer;
  transition: color .16s ease, border-color .16s ease;
}
.pyql-tab:hover { color: #fff; }
.pyql-tab[aria-selected="true"] { color: var(--pyql-amber); border-bottom-color: var(--pyql-amber); }
.pyql-pane[hidden] { display: none; }
.pyql-edit {
  background: var(--pyql-code-bg); border: 1px solid rgba(196,168,230,0.22);
  border-radius: var(--pyql-r); color: var(--pyql-code-pln);
  font-family: var(--pyql-font-code); font-size: 0.88rem; line-height: 1.7;
  padding: 1.2rem 1.3rem; white-space: pre; overflow-x: auto; margin: 0;
  min-height: 220px; outline: none;
}
.pyql-edit:focus { border-color: var(--pyql-amber); }
.pyql-note {
  background: rgba(31,182,201,0.1); border: 1px solid rgba(31,182,201,0.34);
  border-left: 4px solid var(--pyql-teal); border-radius: 0 var(--pyql-r) var(--pyql-r) 0;
  padding: 1rem 1.2rem; color: var(--pyql-on-dark); font-size: 0.95rem;
}
.pyql-note strong { color: #fff; }
.pyql-qnav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem; margin-top: 1.5rem; }

/* ---- footer -------------------------------------------------------------- */
.pyql-footer {
  background: linear-gradient(180deg, var(--pyql-lilac-300), var(--pyql-lilac));
  border-top: 5px solid var(--pyql-amber); color: var(--pyql-violet-800);
}
.pyql-footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2rem; padding-block: 2.6rem; }
.pyql-footer h4 { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.16em; color: var(--pyql-violet-700); margin-bottom: 0.8rem; }
.pyql-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.pyql-footer a { color: var(--pyql-violet-800); text-decoration: none; font-size: 0.94rem; }
.pyql-footer a:hover { color: var(--pyql-violet-900); text-decoration: underline; }
.pyql-footer__brand { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.8rem; }
.pyql-footer__brand img { width: 40px; height: 40px; }
.pyql-footer__brand b { font-size: 1.2rem; }
.pyql-footer__about { font-size: 0.92rem; color: var(--pyql-violet-700); max-width: 36ch; }
.pyql-legal { border-top: 1px solid rgba(34,3,74,0.18); padding-block: 1.1rem; display: flex; flex-wrap: wrap; gap: 0.6rem 1.2rem; justify-content: space-between; font-size: 0.84rem; color: var(--pyql-violet-700); }

/* ---- 404 ----------------------------------------------------------------- */
.pyql-404 { text-align: center; padding-block: var(--pyql-band); }
.pyql-404__code { font-size: clamp(4rem, 14vw, 9rem); color: var(--pyql-amber); font-weight: 700; line-height: 1; }

/* ---- reveal-on-scroll (seed: fade up) ------------------------------------ */
html.js .pyql-reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
html.js .pyql-reveal.is-in { opacity: 1; transform: none; }

/* ---- responsive ---------------------------------------------------------- */
@media (max-width: 1100px) {
  .pyql-split { grid-template-columns: 1fr; gap: 1.2rem; }
  .pyql-demo { grid-template-columns: minmax(0,1fr); }
  .pyql-demo > .pyql-index { order: 2; position: static; max-height: none; }
  .pyql-demo > div { order: 1; }
  .pyql-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  body { padding-left: 0; padding-top: 72px; }
  .pyql-rail { inset: 0 0 auto 0; width: 100%; height: auto; border-right: 0; }
  .pyql-rail__inner { height: auto; padding: 0.55rem 1rem; gap: 0.4rem; overflow: visible; }
  .pyql-burger { display: inline-flex; }
  .pyql-nav { display: none; }
  .pyql-nav.is-open { display: block; padding-bottom: 0.6rem; }
  .pyql-nav__list { gap: 2px; }
  .pyql-rail__foot { display: none; }
  .pyql-scenario { grid-template-columns: 1fr; column-gap: 0; padding-block: 2rem; }
  .pyql-scenario__head { grid-column: 1; grid-row: 1; flex-direction: row; align-items: baseline; gap: 0.7rem; }
  .pyql-scenario > .pyql-lede { grid-column: 1; grid-row: 2; }
  .pyql-scenario > .pyql-qlist { grid-column: 1; grid-row: 3; }
  .pyql-facts { grid-template-columns: 1fr; }
  .pyql-fact { border-left-color: rgba(196,168,230,0.26); }
  .pyql-fact:first-child { border-left-color: var(--pyql-amber); }
}
@media (max-width: 760px) {
  .pyql-cards { grid-template-columns: 1fr; }
  .pyql-person { grid-template-columns: 1fr; grid-template-areas: "mono" "role" "name" "bio"; row-gap: 0.35rem; }
  .pyql-footer__grid { grid-template-columns: 1fr; }
  .pyql-card { grid-template-columns: 56px minmax(0,1fr); grid-template-areas: "idx title" "idx desc"; }
  .pyql-card__more { display: none; }
}
@media (max-width: 560px) {
  .pyql-brand__tag { display: none; }
  .pyql-hero h1 { font-size: 2.4rem; }
  .pyql-feat { grid-template-columns: 1fr; grid-template-areas: "ico" "title" "desc"; row-gap: 0.4rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
  html.js .pyql-reveal { opacity: 1; transform: none; }
}