/* ===========================================================================
   guides.css — /guides and /tools/html-viewer.

   Loads after home.css and use-cases.css and borrows from both: the tokens,
   the bar and the buttons from home.css; the hero, the FAQ, the cards, the
   tables and the per-page --uc-accent tints from use-cases.css (the body
   carries data-uc, which is what switches those tints on). What lives here is
   only what an ARTICLE needs and a builder page doesn't: a reading column, a
   short-answer box, a contents rail, the one-box builder and the viewer tool.

   Every selector is .gd- prefixed, so nothing here can reach the builder.
   =========================================================================== */

/* ═══ The short answer, directly under the h1 ═══ */
.gd-meta{display:flex;flex-wrap:wrap;gap:.3rem .9rem;margin-top:.9rem;font-size:.84rem;color:var(--slate)}
.gd-meta span{display:inline-flex;align-items:center;gap:.35rem}
.gd-meta i{font-size:.8rem;opacity:.7}
.gd-answer{
  margin-top:1.3rem;max-width:72ch;position:relative;
  background:var(--white);border:1px solid var(--uc-line);border-radius:var(--r);
  padding:1.1rem 1.25rem 1.15rem;box-shadow:var(--shadow-sm);
}
.gd-answer::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--uc-accent)}
.gd-answer-l{
  display:block;font-family:'Space Mono',monospace;font-size:.66rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;color:var(--uc-deep);margin-bottom:.4rem;
}
.gd-answer p{font-size:1.04rem;line-height:1.65;color:var(--ink-soft)}

/* ═══ Layout: a reading column and a contents rail ═══ */
.gd-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:3rem;padding-top:40px;padding-bottom:20px;align-items:start}
.gd-aside{position:sticky;top:84px;display:flex;flex-direction:column;gap:1rem}
.gd-toc{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.1rem}
.gd-toc b{display:block;font-family:'Space Mono',monospace;font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);margin-bottom:.55rem}
.gd-toc ol{list-style:none;display:flex;flex-direction:column;gap:.1rem}
.gd-toc a{display:block;font-size:.86rem;line-height:1.4;color:var(--ink-soft);padding:.32rem .5rem;border-radius:7px;border-left:2px solid transparent}
.gd-toc a:hover{background:var(--paper-2)}
.gd-toc a.on{border-left-color:var(--uc-accent);background:var(--uc-tint);color:var(--uc-deep);font-weight:600}
.gd-aside-cta{
  display:flex;flex-direction:column;gap:.55rem;padding:1rem 1.1rem;border-radius:var(--r);
  background:var(--ink);color:rgba(255,255,255,.75);font-size:.86rem;line-height:1.5;
}
.gd-aside-cta b{color:#fff;font-size:.98rem;letter-spacing:-.01em}
.gd-aside-cta .hm-btn{justify-content:center}

/* ═══ The article itself ═══ */
.gd-body{max-width:72ch;min-width:0}
.gd-body>section{padding:6px 0 30px;scroll-margin-top:84px}
.gd-body h2{font-size:clamp(1.35rem,2.5vw,1.75rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;margin-bottom:.8rem}
.gd-body h3{font-size:1.06rem;font-weight:700;letter-spacing:-.02em;margin:1.3rem 0 .4rem}
.gd-body p{font-size:1.01rem;line-height:1.75;color:var(--ink-soft);margin-bottom:.9rem}
.gd-body p.gd-lead{font-weight:500;color:var(--ink)}
.gd-body ul,.gd-body ol.gd-ol{margin:0 0 1rem 1.2rem;color:var(--ink-soft);line-height:1.7}
.gd-body li{margin-bottom:.35rem}
.gd-body li b,.gd-body p b{color:var(--ink);font-weight:600}
.gd-body a:not(.hm-btn){color:var(--uc-deep);font-weight:600;border-bottom:1px solid var(--uc-line)}
.gd-body a:not(.hm-btn):hover{border-bottom-color:var(--uc-accent)}
.gd-body .uc-steps,.gd-body .uc-tw,.gd-body .uc-code,.gd-body .uc-grid{margin:1rem 0 1.2rem}
.gd-body .uc-steps{margin-left:0}
.gd-body .uc-note{margin:1rem 0 1.2rem}
.gd-body .uc-code pre{white-space:pre-wrap;word-break:break-word}

/* ═══ The one-box builder ═══ */
.gd-build{
  position:relative;overflow:hidden;margin:1.6rem 0 0;
  background:var(--ink);color:rgba(255,255,255,.82);border-radius:var(--r-lg);
  padding:1.5rem 1.5rem 1.35rem;box-shadow:var(--shadow-lg);scroll-margin-top:84px;
}
.gd-build::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(70% 90% at 100% 0%,color-mix(in srgb,var(--uc-accent) 40%,transparent),transparent 60%),
             radial-gradient(60% 80% at 0% 100%,rgba(91,75,232,.35),transparent 60%)}
.gd-build>*{position:relative}
.gd-build-tag{
  display:inline-flex;align-items:center;gap:.4rem;font-family:'Space Mono',monospace;font-size:.64rem;
  font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);padding:.3rem .65rem;border-radius:100px;
}
.gd-build h2{color:#fff;font-size:clamp(1.2rem,2.4vw,1.5rem);font-weight:800;letter-spacing:-.03em;margin:.7rem 0 .3rem}
.gd-build>p{font-size:.92rem;color:rgba(255,255,255,.62);line-height:1.55;margin:0 0 .9rem}
.gd-build textarea{
  width:100%;display:block;resize:vertical;min-height:88px;
  font:inherit;font-size:1rem;line-height:1.55;color:var(--ink);
  background:#fff;border:2px solid transparent;border-radius:12px;padding:.8rem .95rem;
  transition:border-color .15s,box-shadow .15s;
}
.gd-build textarea:focus{outline:none;border-color:color-mix(in srgb,var(--uc-accent) 70%,#fff);box-shadow:0 0 0 4px color-mix(in srgb,var(--uc-accent) 30%,transparent)}
.gd-build-egs{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.7rem}
.gd-build-egs span{font-size:.8rem;color:rgba(255,255,255,.5);align-self:center;margin-right:.1rem}
.gd-build-egs button{
  font:inherit;font-size:.82rem;font-weight:500;color:#fff;cursor:pointer;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  border-radius:100px;padding:.32rem .75rem;transition:background .15s,border-color .15s;
}
.gd-build-egs button:hover,.gd-build-egs button.on{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.4)}
.gd-build-go{display:flex;align-items:center;flex-wrap:wrap;gap:.6rem 1rem;margin-top:1rem}
.gd-build-go span{font-size:.82rem;color:rgba(255,255,255,.55);display:inline-flex;align-items:center;gap:.4rem}
.gd-build-go span i{color:#6EE7B7}

/* ═══ Related links at the end of an article ═══ */
.gd-more{display:grid;grid-template-columns:repeat(2,1fr);gap:.7rem;margin-top:1rem}

/* ═══ Guides hub ═══ */
.gd-hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.gd-tool-card{
  display:grid;grid-template-columns:auto 1fr auto;gap:1.2rem;align-items:center;
  background:var(--ink);color:rgba(255,255,255,.75);border-radius:var(--r-lg);padding:1.4rem 1.5rem;
  box-shadow:var(--shadow-lg);transition:transform .2s;
}
.gd-tool-card:hover{transform:translateY(-3px)}
.gd-tool-card .uc-hub-i{margin:0;background:rgba(255,255,255,.12);color:#fff}
.gd-tool-card h3{color:#fff;font-size:1.1rem;font-weight:700;letter-spacing:-.02em}
.gd-tool-card p{font-size:.9rem;line-height:1.55;margin-top:.25rem}
.gd-tool-card .hm-btn{white-space:nowrap}

/* ═══ HTML viewer ═══ */
.gd-tool{padding:22px 0 10px}
.gd-tool-shell{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-lg);min-height:560px;
}
.gd-pane{display:flex;flex-direction:column;min-width:0;min-height:0}
.gd-pane+.gd-pane{border-left:1px solid var(--line)}
.gd-pane-bar{
  display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;
  padding:.55rem .7rem;background:var(--paper-2);border-bottom:1px solid var(--line);min-height:50px;
}
.gd-pane-t{font-family:'Space Mono',monospace;font-size:.66rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);margin-right:auto}
.gd-mini{
  display:inline-flex;align-items:center;gap:.35rem;font:inherit;font-size:.8rem;font-weight:600;
  color:var(--ink-soft);background:var(--white);border:1px solid var(--line);border-radius:8px;
  padding:.35rem .6rem;cursor:pointer;transition:border-color .15s,background .15s;
}
.gd-mini:hover{border-color:var(--uc-line);background:var(--uc-tint)}
.gd-mini.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.gd-seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--white)}
.gd-seg button{font:inherit;font-size:.82rem;border:0;background:transparent;color:var(--slate);padding:.35rem .55rem;cursor:pointer}
.gd-seg button+button{border-left:1px solid var(--line)}
.gd-seg button.on{background:var(--ink);color:#fff}
.gd-code{
  flex:1;width:100%;min-height:420px;resize:none;border:0;outline:none;
  font-family:'Space Mono',ui-monospace,monospace;font-size:.8rem;line-height:1.7;tab-size:2;
  padding:1rem 1.05rem;background:var(--code-bg,#16181F);color:var(--code-fg,#E7E5DF);
  white-space:pre;overflow:auto;
}
.gd-code::placeholder{color:rgba(255,255,255,.35)}
.gd-stage{flex:1;position:relative;display:flex;justify-content:center;background:var(--paper-2);min-height:420px}
.gd-stage iframe{width:100%;height:100%;border:0;background:#fff;transition:width .25s ease}
.gd-stage.phone iframe{width:390px;max-width:100%;border-left:1px solid var(--line);border-right:1px solid var(--line)}
.gd-stage-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.4rem;color:var(--slate);text-align:center;padding:2rem;pointer-events:none}
.gd-stage-empty i{font-size:1.8rem;opacity:.5}
.gd-stage-empty b{color:var(--ink-soft)}
.gd-pub{
  display:flex;align-items:center;justify-content:space-between;gap:.8rem 1.2rem;flex-wrap:wrap;
  margin-top:1rem;padding:1rem 1.2rem;border-radius:var(--r);
  background:var(--uc-tint);border:1px solid var(--uc-line);
}
.gd-pub p{font-size:.92rem;color:var(--ink-soft);line-height:1.5;margin:0}
.gd-pub p b{color:var(--ink)}
.gd-stat{font-size:.78rem;color:var(--slate);font-family:'Space Mono',monospace}

/* ═══ Responsive ═══ */
@media (max-width:1020px){
  .gd-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .gd-aside{display:none}
  .gd-hub-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .gd-tool-shell{grid-template-columns:minmax(0,1fr)}
  .gd-pane+.gd-pane{border-left:0;border-top:1px solid var(--line)}
  .gd-code{min-height:280px}
  .gd-stage{min-height:460px}
}
@media (max-width:760px){
  .gd-layout{padding-top:26px}
  .gd-build{padding:1.2rem 1.1rem 1.1rem;border-radius:var(--r)}
  .gd-build-go .hm-btn{width:100%;justify-content:center}
  .gd-more{grid-template-columns:1fr}
  .gd-tool-card{grid-template-columns:1fr;gap:.8rem}
  .gd-tool-card .hm-btn{justify-content:center}
}
@media (max-width:560px){
  .gd-hub-grid{grid-template-columns:1fr}
  .gd-answer p{font-size:1rem}
}