/* AI Website Prompts: paper, ink and marker. Braces and the caret are the brand device. */
:root {
  --ink: #16150f;
  --ink-2: #23211a;
  --ink-3: #34312a;
  --paper: #f7f7f8;
  --paper-2: #f1f1f3;
  --card: #ffffff;
  --line: #e7e7ea;
  --line-ink: rgba(247, 244, 236, .13);
  --text: #17171c;
  --muted: #6a6a75;
  --on-ink: #f7f7f8;
  --on-ink-muted: #bdb7a6;
  --hi: #5b4bdb;
  --hi-dk: #4536c4;
  --hi-lt: #a99dff;
  --hi-ink: #33299b;
  --hi-soft: rgba(91, 75, 219, .16);
  --pink: #f92672;
  --pink-dk: #d0105a;
  --blue: #4536c4;
  --green: #2f8a5b;
  --serif: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --r: 12px;
  --r-lg: 20px;
  --shadow: 0 1px 0 rgba(22, 21, 15, .04), 0 14px 34px -16px rgba(22, 21, 15, .28);
  --wrap: 1180px;
  --hh: 72px;
  --ease: cubic-bezier(.2, .7, .1, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--hh) + 16px); }
body { margin: 0; background: var(--paper); color: var(--text); font: 400 17px/1.65 var(--sans); overflow-x: hidden; }
a { color: var(--blue); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.08; text-wrap: balance; margin: 0 0 .5em; }
h1, h2 { font-family: var(--serif); font-weight: 650; letter-spacing: -.032em; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4.2rem); line-height: 1.04; }
h1 em, h2 em { font-style: italic; }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); }
h3, h4 { font-family: var(--sans); font-weight: 650; letter-spacing: -.015em; }
h3 { font-size: 1.2rem; line-height: 1.25; }
p, li { text-wrap: pretty; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 200; background: var(--ink); color: var(--paper); padding: 10px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-radius: 6px; }
mark { background: rgba(91, 75, 219, .12); color: var(--hi-ink); padding: 0 2px; border-radius: 2px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; font: 600 16px/1 var(--sans); padding: 14px 22px; border-radius: 10px; border: 1.5px solid transparent; cursor: pointer; text-decoration: none; transition: transform .2s var(--ease), background .2s, box-shadow .2s, color .2s; white-space: nowrap; }
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-ink { background: var(--ink); color: var(--paper); box-shadow: 0 3px 0 var(--hi); }
.btn-ink:hover { background: var(--ink-3); transform: translateY(-1px); }
.btn-hi { background: var(--hi); color: #fff; box-shadow: 0 1px 0 rgba(255, 255, 255, .18) inset, 0 6px 16px -8px rgba(69, 54, 196, .8); }
.btn-hi:hover { background: var(--hi-dk); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-sm { font-size: 14px; padding: 9px 14px; border-radius: 8px; }

/* progress + header */
.progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 120; pointer-events: none; }
.progress i { display: block; height: 100%; background: var(--hi); box-shadow: 0 0 0 .5px rgba(0, 0, 0, .15); transform-origin: 0 50%; transform: scaleX(0); }
.site-header { position: sticky; top: 0; z-index: 90; height: var(--hh); transition: background .3s, box-shadow .3s; }
.site-header.solid { background: rgba(247, 244, 236, .97); backdrop-filter: saturate(1.3) blur(12px); -webkit-backdrop-filter: saturate(1.3) blur(12px); box-shadow: 0 1px 0 var(--line); }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 650 19px/1 var(--sans); letter-spacing: -.02em; flex-shrink: 0; }
.logo .mark { width: 38px; height: 38px; color: var(--ink); }
.logo-word i { font: normal 400 1em/1 var(--serif); letter-spacing: -.02em; opacity: .72; }
.mark .caret { animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.nav-cta { padding: 11px 16px; font-size: 15px; margin-left: 8px; }
.burger { display: none; margin-left: auto; width: 46px; height: 46px; border: 0; background: transparent; position: relative; cursor: pointer; border-radius: 10px; z-index: 2; }
.burger span { position: absolute; left: 12px; right: 12px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .35s var(--ease), opacity .2s, background .3s; }
.burger span:nth-child(1) { top: 16px; }
.burger span:nth-child(2) { top: 22px; right: 20px; }
.burger span:nth-child(3) { top: 28px; }

/* mobile takeover: the panel types itself in, line by line */
.mnav { position: fixed; inset: 0; z-index: 80; height: 100vh; height: 100dvh; overflow-y: auto; overscroll-behavior: contain; background: var(--ink); color: var(--on-ink); clip-path: inset(0 0 100% 0); visibility: hidden; transition: clip-path .55s var(--ease), visibility 0s .55s; }
.mnav::before { content: ""; position: absolute; inset: 0; background: radial-gradient(90% 50% at 100% 0%, rgba(91, 75, 219, .32), transparent 60%); pointer-events: none; }
.mnav-mark { position: absolute; right: -16px; bottom: 40px; font: 300 300px/1 var(--serif); color: rgba(247, 244, 236, .05); pointer-events: none; letter-spacing: -.1em; }
.mnav-inner { min-height: 100%; display: flex; flex-direction: column; padding: calc(var(--hh) + 20px) 24px 28px; position: relative; }
.mnav ol { list-style: none; margin: 0; padding: 0; }
.mnav li { border-bottom: 1px solid var(--line-ink); opacity: 0; transform: translateX(-14px); transition: opacity .4s, transform .45s var(--ease); }
.mnav li a { display: flex; align-items: baseline; gap: 14px; padding: 16px 0; color: var(--on-ink); text-decoration: none; font: 600 clamp(1.8rem, 8vw, 2.3rem)/1.05 var(--serif); letter-spacing: -.035em; }
.mnav li a i { font: 500 13px/1 var(--mono); font-style: normal; color: var(--hi-lt); min-width: 38px; }
.mnav li a small { display: block; font: 400 14px/1.4 var(--sans); color: var(--on-ink-muted); margin-top: 6px; }
.mnav li a[aria-current] span { color: var(--hi-lt); }
.mnav-foot { margin-top: auto; padding-top: 30px; display: grid; gap: 16px; opacity: 0; transform: translateY(12px); transition: opacity .45s .4s, transform .45s .4s var(--ease); }
.mnav-foot p { margin: 0; color: var(--on-ink-muted); font-size: 15px; }
.mnav-foot .mail { color: var(--on-ink); font-weight: 600; }
.mnav-foot .btn { width: 100%; padding: 17px; }
body.nav-open { overflow: hidden; }
body.nav-open .site-header { z-index: 100; background: transparent; box-shadow: none; backdrop-filter: none; -webkit-backdrop-filter: none; }
body.nav-open .mnav { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path .6s var(--ease), visibility 0s; }
body.nav-open .mnav li { opacity: 1; transform: none; }
body.nav-open .mnav li:nth-child(1) { transition-delay: .12s; }
body.nav-open .mnav li:nth-child(2) { transition-delay: .17s; }
body.nav-open .mnav li:nth-child(3) { transition-delay: .22s; }
body.nav-open .mnav li:nth-child(4) { transition-delay: .27s; }
body.nav-open .mnav li:nth-child(5) { transition-delay: .32s; }
body.nav-open .mnav-foot { opacity: 1; transform: none; }
body.nav-open .burger span { background: var(--paper); }
body.nav-open .burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.nav-open .burger span:nth-child(2) { opacity: 0; }
body.nav-open .burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* home hero */
.cue { display: flex; justify-content: center; padding: 30px 0 34px; }
.cue a { display: inline-flex; align-items: center; gap: 12px; color: var(--muted); text-decoration: none; font: 500 13px/1 var(--mono); }
.cue .keycap { display: inline-grid; place-items: center; width: 46px; height: 42px; border-radius: 9px; background: var(--card); border: 1.5px solid var(--ink); box-shadow: 0 4px 0 var(--ink); color: var(--ink); font: 500 18px/1 var(--mono); animation: press 2.4s var(--ease) infinite; }
.cue a:hover .keycap { background: var(--hi); color: #fff; }
@keyframes press { 0%, 70%, 100% { transform: none; box-shadow: 0 4px 0 var(--ink); } 80% { transform: translateY(3px); box-shadow: 0 1px 0 var(--ink); } }

/* page hero */
.phero { padding: 40px 0 36px; border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.phero::after { content: "}"; position: absolute; right: -20px; top: -70px; font: 200 320px/1 var(--serif); color: rgba(22, 21, 15, .04); pointer-events: none; }
.phero h1 { font-size: clamp(2rem, 4.4vw, 3.2rem); max-width: 20ch; }
.phero .lede { font-size: 1.15rem; color: var(--muted); max-width: 64ch; margin: 0; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font: 400 13px/1.4 var(--mono); color: var(--muted); margin-bottom: 20px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--blue); }
.meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 26px 0 0; font: 400 13px/1.4 var(--mono); color: var(--muted); }
.stats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.stats span { font: 500 13px/1 var(--mono); padding: 8px 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--card); }

/* builder: a console on paper */

/* sections */
.section { padding: 78px 0; }
.section.alt { background: var(--paper-2); }
.section.ink { background: var(--ink); color: var(--on-ink); }
.section.ink h2, .section.ink h3 { color: var(--on-ink); }
.section.ink p { color: var(--on-ink-muted); }
.sec .idx { font: 500 .42em/1 var(--mono); color: var(--muted); vertical-align: .55em; margin-right: .2em; letter-spacing: 0; }
.section.ink .sec .idx { color: var(--hi-lt); }
.intro { max-width: 68ch; color: var(--muted); font-size: 1.08rem; margin: 0 0 34px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.anat { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: a; }
.anat div { border-top: 2px solid var(--hi); padding-top: 14px; }
.anat h3 { color: var(--on-ink); font-size: 1.05rem; }
.anat p { font-size: 15px; margin: 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.card { position: relative; display: block; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px 46px 22px 22px; text-decoration: none; color: var(--text); transition: transform .25s var(--ease), box-shadow .25s, border-color .25s; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--ink); text-decoration: none; }
.card strong { display: block; font: 650 1.08rem/1.25 var(--sans); color: var(--ink); margin-bottom: 6px; letter-spacing: -.01em; }
.card span { font-size: 14.5px; color: var(--muted); }
.card i { position: absolute; right: 18px; top: 22px; font-style: normal; color: var(--ink); transition: transform .25s var(--ease); }
.card:hover i { transform: translateX(4px); }

/* prompt cards */
.pc { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 24px; margin: 22px 0; scroll-margin-top: calc(var(--hh) + 16px); }
.pc:target { border-color: var(--ink); box-shadow: 0 0 0 4px var(--hi-soft); }
.pc h3 { margin: 0 0 6px; display: flex; gap: 10px; align-items: baseline; }
.pc-n { font: 500 13px/1 var(--mono); color: var(--muted); }
.pc-use { margin: 0 0 14px; color: var(--muted); font-size: 15.5px; }
.pc-text { margin: 0; white-space: pre-wrap; word-break: break-word; font: 400 14.5px/1.7 var(--mono); color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--ink); border-radius: 0 10px 10px 0; padding: 16px 18px; }
.pc-acts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.pc-tip { margin: 14px 0 0; font-size: 15px; color: #3a3a42; }
.example { border: 1px dashed var(--ink); border-radius: var(--r-lg); padding: 22px; margin: 26px 0; background: var(--card); }
.example h3 { margin-top: 0; }
.example .label { font: 500 12.5px/1 var(--mono); color: var(--muted); margin: 18px 0 8px; display: block; }
.example .out { font-size: 15.5px; border-left: 3px solid var(--hi); padding-left: 16px; }
.example .out p { margin: 0 0 .7em; }

/* prose */
.art-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 56px; }
.toc { position: sticky; top: calc(var(--hh) + 24px); align-self: start; font-size: 14.5px; max-height: calc(100vh - var(--hh) - 40px); overflow-y: auto; }
.toc p { font: 500 12.5px/1 var(--mono); color: var(--muted); margin: 0 0 12px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1.5px solid var(--line); }
.toc a { display: block; padding: 7px 0 7px 16px; margin-left: -1.5px; border-left: 1.5px solid transparent; color: var(--muted); text-decoration: none; line-height: 1.35; }
.toc a:hover { color: var(--ink); }
.toc a.on { color: var(--ink); border-left-color: var(--ink); font-weight: 600; }
.prose { max-width: 74ch; }
.prose > h2 { margin-top: 1.8em; }
.prose > h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.6em; }
.prose p, .prose li { color: #2a2a31; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .35em 0; }
.prose li::marker { color: var(--muted); }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: 15px; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { font: 600 13px/1.3 var(--sans); color: var(--muted); background: var(--paper-2); }
.prose code { font: 400 .88em var(--mono); background: var(--paper-2); padding: 2px 5px; border-radius: 4px; }
.note { border: 1px solid var(--line); border-left: 4px solid var(--hi); background: var(--card); border-radius: 0 var(--r) var(--r) 0; padding: 16px 20px; margin: 1.5em 0; font-size: 15.5px; }
.note p { margin: 0; }
.pull { font: 600 clamp(1.3rem, 2.3vw, 1.65rem)/1.3 var(--serif); letter-spacing: -.02em; color: var(--ink); border-left: 3px solid var(--hi); padding-left: 20px; margin: 1.8em 0; text-wrap: balance; }
.checklist { list-style: none; padding: 0 !important; }
.checklist li { position: relative; padding-left: 30px; }
.checklist li::before { content: ""; position: absolute; left: 2px; top: .45em; width: 14px; height: 9px; border: solid var(--green); border-width: 0 0 2.5px 2.5px; transform: rotate(-45deg); }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 1.4em 0; }
.compare div { border: 1px solid var(--line); border-radius: var(--r); padding: 16px 18px; background: var(--card); font-size: 15px; }
.compare b { display: block; font: 500 12.5px/1 var(--mono); margin-bottom: 10px; }
.compare .bad b { color: #a33a2a; }
.compare .good b { color: var(--green); }
.compare p { margin: 0; }

/* partner, faq, misc */
.partner { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; background: var(--ink); color: var(--on-ink); border-radius: var(--r-lg); padding: 28px 30px; margin: 2em 0; }
.partner h3 { color: var(--on-ink); margin: 6px 0; font-size: 1.3rem; }
.partner p { color: var(--on-ink-muted); margin: 0; font-size: 15.5px; }
.partner .partner-label { font: 500 12px/1 var(--mono); color: var(--hi-lt); }
.faq { display: grid; gap: 10px; max-width: 860px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 0 20px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 30px 18px 0; font: 600 1.04rem/1.35 var(--sans); color: var(--ink); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 13px; font: 400 26px/1 var(--mono); color: var(--ink); transition: transform .25s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 0 18px; color: #2a2a31; }
.faq .a p { margin: 0 0 .7em; }
.form { display: grid; gap: 16px; max-width: 620px; }
.form .field { display: grid; gap: 6px; }
.form label { font: 600 14px/1 var(--sans); color: var(--muted); }
.form input, .form textarea { font: 400 16px/1.4 var(--sans); color: var(--ink); background: var(--card); border: 1.5px solid var(--line); border-radius: 10px; padding: 12px; width: 100%; }
.form textarea { min-height: 160px; resize: vertical; }
.notfound { text-align: center; padding: 90px 0; }
.notfound .big { font: 700 clamp(5rem, 18vw, 10rem)/1 var(--serif); letter-spacing: -.05em; color: var(--ink); }
.notfound .big mark { background: var(--hi); color: #fff; padding: 0 .1em; border-radius: 8px; }
.sitemap-cols { columns: 3 260px; column-gap: 40px; }
.sitemap-cols section { break-inside: avoid; margin-bottom: 28px; }
.sitemap-cols h2 { font-size: 1.6rem; }
.sitemap-cols ul { padding-left: 1.1em; margin: 0; }

/* footer */
.site-footer { background: var(--ink); color: var(--on-ink-muted); padding: 70px 0 30px; font-size: 15px; }
.site-footer .logo { color: var(--on-ink); }
.site-footer .mark { color: var(--paper); --mark-fg: var(--ink); }
.fcols { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 36px; }
.fbrand p { margin: 16px 0 0; max-width: 36ch; }
.site-footer h4 { color: var(--on-ink); font: 600 14px/1 var(--sans); margin: 6px 0 16px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.site-footer a { color: var(--on-ink-muted); text-decoration: none; }
.site-footer a:hover { color: var(--on-ink); text-decoration: underline; }
.disclaimer { margin: 46px 0 0; padding-top: 24px; border-top: 1px solid var(--line-ink); font-size: 13.5px; max-width: 110ch; }
.disclaimer a { text-decoration: underline; }
.fbar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 22px; font-size: 13.5px; }

/* back to top: a keycap with a progress ring */
.totop { position: fixed; right: 20px; bottom: 20px; z-index: 70; width: 54px; height: 54px; border-radius: 50%; border: 0; background: var(--ink); cursor: pointer; display: grid; place-items: center; opacity: 0; transform: translateY(16px) scale(.9); pointer-events: none; transition: opacity .3s, transform .3s var(--ease); box-shadow: 0 10px 26px -10px rgba(22, 21, 15, .6); }
.totop.show { opacity: 1; transform: none; pointer-events: auto; }
.totop svg { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
.totop circle { fill: none; stroke-width: 2.5; }
.totop .bg { stroke: rgba(247, 244, 236, .15); }
.totop .fg { stroke: var(--hi-lt); stroke-dasharray: 151; stroke-dashoffset: 151; stroke-linecap: round; }
.totop .key { position: relative; display: grid; place-items: center; width: 26px; height: 24px; border-radius: 6px; background: var(--paper); color: var(--ink); font: 600 14px/1 var(--mono); box-shadow: 0 2px 0 var(--hi); transition: transform .2s; }
.totop:hover .key { transform: translateY(1px); box-shadow: 0 1px 0 var(--hi); }

/* reveals */
.js .rv { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .rv.in { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .burger { display: block; }
  .fcols { grid-template-columns: 1fr 1fr 1fr; }
  .fbrand { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .split, .art-grid { grid-template-columns: 1fr; gap: 30px; }
  .toc { position: static; max-height: none; }
  .anat { grid-template-columns: 1fr 1fr; }
  .partner, .compare { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 16.5px; }
  .wrap { padding: 0 16px; }
  .section { padding: 56px 0; }
  .anat { grid-template-columns: 1fr; }
  .pc { padding: 18px; }
  .pc-text { font-size: 13.5px; padding: 14px; }
  .fcols { grid-template-columns: 1fr 1fr; }
  .totop { right: 14px; bottom: 14px; }
  .logo-word { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .js .rv { opacity: 1; transform: none; }
}

/* =====================================================================
   App shell: left sidebar, top bar, command palette (Shopify/Webflow-style)
   ===================================================================== */
.shell { --side: 268px; --tbh: 60px; background: #ffffff; }
.shell .site-header { position: sticky; top: 0; height: var(--tbh); z-index: 50; background: rgba(255, 255, 255, .86); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--line); box-shadow: none; }
.shell .site-header.solid { background: rgba(255, 255, 255, .94); box-shadow: none; }
html { scroll-padding-top: 80px; }
.tb { height: 100%; display: flex; align-items: center; gap: 14px; padding: 0 28px; }
.tb-mobile-logo { display: none; }
.tb-crumb { margin: 0; font: 500 14px/1 var(--sans); color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.tb-crumb b { font-weight: 400; color: var(--line); margin: 0 4px; }
.tb-search { margin-left: auto; display: flex; align-items: center; gap: 10px; width: min(380px, 40vw); height: 38px; padding: 0 10px 0 12px; border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--muted); font: 400 14px/1 var(--sans); cursor: pointer; transition: border-color .2s, box-shadow .2s; }
.tb-search:hover { border-color: #cfcfd6; box-shadow: 0 2px 10px -6px rgba(22, 21, 15, .3); }
.tb-search span { flex: 1; text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tb-search i, .side-search i, .pal-in i { width: 16px; height: 16px; display: inline-grid; flex-shrink: 0; }
kbd { font: 500 11.5px/1 var(--mono); padding: 4px 6px; border-radius: 6px; border: 1px solid var(--line); background: var(--paper); color: var(--muted); white-space: nowrap; }
.tb-cta { flex-shrink: 0; }
svg[viewBox="0 0 20 20"] { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.side { position: fixed; inset: 0 auto 0 0; width: var(--side); z-index: 60; background: var(--ink); color: var(--on-ink); display: flex; flex-direction: column; border-right: 1px solid #000; }
.side::after { content: ""; position: absolute; inset: 0; background: radial-gradient(120% 40% at 0% 0%, rgba(91, 75, 219, .2), transparent 60%); pointer-events: none; }
.side-top { height: var(--tbh); display: flex; align-items: center; padding: 0 18px; border-bottom: 1px solid var(--line-ink); }
.side .logo { color: var(--on-ink); font-size: 17px; }
.side .logo .mark { width: 32px; height: 32px; color: var(--paper); --mark-fg: var(--ink); }
.side-search { margin: 14px 14px 6px; display: flex; align-items: center; gap: 10px; height: 36px; padding: 0 8px 0 10px; border-radius: 9px; border: 1px solid var(--line-ink); background: rgba(247, 244, 236, .04); color: var(--on-ink-muted); font: 400 13.5px/1 var(--sans); cursor: pointer; position: relative; z-index: 1; }
.side-search:hover { background: rgba(247, 244, 236, .08); color: var(--on-ink); }
.side-search span { flex: 1; text-align: left; }
.side-search kbd { background: transparent; border-color: var(--line-ink); color: var(--on-ink-muted); }
.side-nav { flex: 1; overflow-y: auto; padding: 4px 10px 16px; position: relative; z-index: 1; scrollbar-width: thin; scrollbar-color: var(--ink-3) transparent; }
.side-label { margin: 18px 10px 6px; font: 500 12px/1 var(--sans); color: #8d8774; }
.side-nav a, .sg summary { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; color: #d9d4c4; text-decoration: none; font: 500 14px/1.2 var(--sans); cursor: pointer; position: relative; transition: background .15s, color .15s; }
.side-nav a:hover, .sg summary:hover { background: rgba(247, 244, 236, .06); color: var(--on-ink); }
.side-nav a i, .sg summary i { width: 18px; height: 18px; display: inline-grid; color: #a59f8b; flex-shrink: 0; }
.side-nav a[aria-current] { background: rgba(247, 244, 236, .1); color: #fff; }
.side-nav a[aria-current]::before { content: ""; position: absolute; left: -10px; top: 7px; bottom: 7px; width: 3px; border-radius: 0 3px 3px 0; background: var(--hi-lt); }
.side-nav a[aria-current] i { color: var(--hi-lt); }
.sg summary { list-style: none; }
.sg summary::-webkit-details-marker { display: none; }
.sg summary span { flex: 1; }
.sg summary .n { font: 500 11px/1 var(--mono); color: #8d8774; padding: 3px 6px; border-radius: 5px; background: rgba(247, 244, 236, .06); }
.sg summary::after { content: ""; width: 6px; height: 6px; border: solid #8d8774; border-width: 0 1.5px 1.5px 0; transform: rotate(-45deg); transition: transform .2s; margin-left: 2px; }
.sg[open] summary::after { transform: rotate(45deg); }
.sg-sub { padding: 2px 0 6px 28px; position: relative; }
.sg-sub::before { content: ""; position: absolute; left: 19px; top: 2px; bottom: 8px; width: 1px; background: var(--line-ink); }
.sg-sub a { font-size: 13.5px; font-weight: 400; padding: 6.5px 10px; color: #b9b3a1; }
.sg-sub a[aria-current]::before { left: -9px; }
.side-foot { display: flex; gap: 14px; padding: 14px 20px; border-top: 1px solid var(--line-ink); position: relative; z-index: 1; }
.side-foot a { color: #8d8774; font-size: 12.5px; text-decoration: none; }
.side-foot a:hover { color: var(--on-ink); }
.main-col { margin-left: var(--side); min-width: 0; min-height: 100vh; display: flex; flex-direction: column; }
.main-col main { flex: 1; }
.shell .phero { background: transparent; }
.shell .section.alt { background: #f7f7f8; }

/* footer inside the shell */
.shell .site-footer { padding: 46px 0 26px; }
.foot-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 30px; }
.foot-row p { max-width: 44ch; margin: 14px 0 0; }
.foot-row ul { display: flex; flex-wrap: wrap; gap: 10px 22px; align-content: flex-start; max-width: 520px; }
.shell .disclaimer { margin-top: 30px; }

/* command palette */
.pal { position: fixed; inset: 0; z-index: 150; background: rgba(22, 21, 15, .42); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); display: flex; justify-content: center; align-items: flex-start; padding: 12vh 16px 16px; }
.pal[hidden] { display: none; }
.pal-box { width: min(640px, 100%); background: #fff; border-radius: 14px; box-shadow: 0 40px 90px -30px rgba(0, 0, 0, .55), 0 0 0 1px rgba(22, 21, 15, .08); overflow: hidden; animation: palin .18s var(--ease); }
@keyframes palin { from { opacity: 0; transform: translateY(-8px) scale(.98); } }
.pal-in { display: flex; align-items: center; gap: 12px; padding: 0 16px; border-bottom: 1px solid var(--line); color: var(--muted); }
.pal-in input { flex: 1; border: 0; outline: 0; font: 400 17px/1 var(--sans); padding: 18px 0; color: var(--ink); background: transparent; min-width: 0; }
.pal-list { list-style: none; margin: 0; padding: 8px; max-height: min(52vh, 460px); overflow-y: auto; }
.pal-list a { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 10px 12px; border-radius: 9px; color: var(--ink); text-decoration: none; font: 500 14.5px/1.3 var(--sans); }
.pal-list a small { font: 400 12px/1 var(--mono); color: var(--muted); white-space: nowrap; }
.pal-list a.sel, .pal-list a:hover { background: var(--paper); box-shadow: inset 3px 0 0 var(--hi); }
.pal-empty { padding: 20px; margin: 0; color: var(--muted); }

/* =====================================================================
   Prompt Builder app
   ===================================================================== */
.appsec { padding: 20px 24px 0; }
.app { position: relative; display: grid; grid-template-rows: auto 1fr; height: calc(100vh - var(--tbh) - 40px); min-height: 640px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 1px 0 rgba(22, 21, 15, .03), 0 30px 60px -40px rgba(22, 21, 15, .35); overflow: hidden; }
.ap-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.ap-title h1 { font: 650 24px/1.1 var(--serif); margin: 0 0 6px; letter-spacing: -.03em; }
.ap-title p { margin: 0; font-size: 13.5px; color: var(--muted); max-width: 62ch; }
.ap-profile-bar { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.ap-profile-bar select { height: 36px; border: 1px solid var(--line); border-radius: 9px; background-color: var(--paper); font: 500 13.5px/1 var(--sans); color: var(--ink); padding: 0 30px 0 10px; appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 15px) 50%, calc(100% - 10px) 50%; background-size: 5px 5px; background-repeat: no-repeat; max-width: 200px; }
.ap-profile-bar .btn-sm { padding: 8px 11px; font-size: 13px; border-width: 1px; border-color: var(--line); }
.ap-profile-bar .btn-sm:hover:not(:disabled) { border-color: var(--ink); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.ap-seg { display: none; }
.ap-body { display: grid; grid-template-columns: 236px minmax(0, 1fr) minmax(0, 1.12fr); min-height: 0; }
.ap-col { min-height: 0; overflow-y: auto; scrollbar-width: thin; }
.ap-side { background: #fafafb; border-right: 1px solid var(--line); padding: 12px 10px 16px; }
.ap-find input { width: 100%; height: 34px; border: 1px solid var(--line); border-radius: 8px; background: #fff; padding: 0 10px; font: 400 13.5px/1 var(--sans); color: var(--ink); }
.ap-find input:focus { outline: 0; border-color: var(--ink); box-shadow: 0 0 0 3px var(--hi-soft); }
.ap-group { margin: 16px 8px 6px; font: 500 12px/1 var(--sans); color: #8b8b95; }
.ap-group[hidden] { display: none; }
.ap-task { display: block; width: 100%; text-align: left; border: 0; background: transparent; padding: 8px 10px; border-radius: 8px; cursor: pointer; color: var(--ink); font: 500 13.5px/1.25 var(--sans); transition: background .15s; }
.ap-task[hidden] { display: none; }
.ap-task:hover { background: #f1f1f4; }
.ap-task small { display: none; font: 400 12px/1.35 var(--sans); margin-top: 4px; color: var(--on-ink-muted); }
.ap-task.on { background: var(--hi); color: var(--paper); box-shadow: 0 6px 16px -10px rgba(22, 21, 15, .7); }
.ap-task.on small { display: block; color: rgba(255, 255, 255, .78); }
.ap-history { list-style: none; margin: 0; padding: 0; }
.ap-history button { display: block; width: 100%; text-align: left; border: 0; background: transparent; padding: 7px 10px; border-radius: 8px; cursor: pointer; font: 500 13px/1.3 var(--sans); color: var(--ink); }
.ap-history button:hover { background: #f1f1f4; }
.ap-history span { display: block; font-weight: 400; font-size: 12px; color: var(--muted); }
.ap-history .empty { padding: 4px 10px; font-size: 12.5px; color: var(--muted); }
.ap-form { background: #fafafb; padding: 20px; }
.ap-task-head { margin: 0 2px 14px; }
.ap-kicker { margin: 0 0 4px; font: 500 12px/1 var(--mono); color: var(--muted); }
.ap-task-head h2 { font: 650 20px/1.2 var(--sans); letter-spacing: -.015em; margin: 0 0 4px; }
.ap-task-head p { margin: 0; color: var(--muted); font-size: 13.5px; }
.ap-card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 12px; box-shadow: 0 1px 2px rgba(22, 21, 15, .04); }
.ap-field { display: grid; gap: 6px; margin-bottom: 12px; }
.ap-field:last-child { margin-bottom: 0; }
.ap-field[hidden] { display: none; }
.ap-field label { font: 600 12.5px/1.2 var(--sans); color: #45454f; }
.ap-field label small { font-weight: 400; color: #9a9aa4; margin-left: 4px; }
.ap-field input, .ap-field textarea, .ap-field select { width: 100%; font: 400 14.5px/1.4 var(--sans); color: var(--ink); background: #fff; border: 1px solid #dcdce1; border-radius: 9px; padding: 9px 11px; min-height: 40px; transition: border-color .15s, box-shadow .15s; }
.ap-field textarea { resize: vertical; }
.ap-field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 15px) 50%, calc(100% - 10px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 30px; }
.ap-field input:focus, .ap-field textarea:focus, .ap-field select:focus { outline: 0; border-color: var(--ink); box-shadow: 0 0 0 3px var(--hi-soft); }
.ap-field input::placeholder, .ap-field textarea::placeholder { color: #a6a6af; }
.ap-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.ap-grid .ap-field { margin-bottom: 12px; }
.ap-extra { padding-bottom: 12px; margin-bottom: 14px !important; border-bottom: 1px dashed var(--line); }
.ap-toggles { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 4px; }
.sw { display: inline-flex; align-items: center; gap: 8px; font: 500 13px/1 var(--sans); color: #45454f; cursor: pointer; }
.sw input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.sw span { width: 30px; height: 18px; border-radius: 99px; background: #dcdce1; position: relative; transition: background .2s; flex-shrink: 0; }
.sw span::after { content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, .25); transition: transform .2s var(--ease); }
.sw input:checked + span { background: var(--hi); }
.sw input:checked + span::after { transform: translateX(12px); background: #fff; }
.sw input:focus-visible + span { outline: 3px solid var(--blue); outline-offset: 2px; }
.ap-out { background: var(--ink); color: var(--on-ink); display: flex; flex-direction: column; overflow: hidden; }
.ap-outbar { display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-bottom: 1px solid var(--line-ink); font: 400 12.5px/1 var(--mono); color: var(--on-ink-muted); }
.ap-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--pink); box-shadow: 0 0 0 4px rgba(249, 38, 114, .18); }
.ap-file { color: var(--on-ink); }
.ap-stats { margin-left: auto; display: flex; gap: 14px; }
.ap-stat-h { color: var(--hi-lt); }
.ap-stat-h.ok { color: #7fd6a4; }
.ap-progress { height: 2px; background: rgba(247, 244, 236, .08); }
.ap-progress i { display: block; height: 100%; width: 10%; background: linear-gradient(90deg, var(--hi), var(--hi-lt)); transition: width .4s var(--ease); }
.ap-pre { flex: 1; margin: 0; padding: 20px 22px; overflow: auto; white-space: pre-wrap; word-break: break-word; font: 400 13.5px/1.75 var(--mono); color: #e9e5d8; scrollbar-width: thin; scrollbar-color: var(--ink-3) transparent; }
.ap-pre mark { background: rgba(169, 157, 255, .15); color: var(--hi-lt); border-radius: 3px; padding: 0 2px; }
.ap-actions { display: flex; flex-wrap: nowrap; gap: 8px; padding: 14px 18px; border-top: 1px solid var(--line-ink); background: rgba(0, 0, 0, .18); }
.ap-actions .btn { padding: 11px 15px; font-size: 14px; border-radius: 9px; }
.ap-actions .btn-hi { flex: 1; }
.ap-actions .btn-hi kbd { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .25); color: #fff; margin-left: 4px; }
.btn-dark { background: var(--ink-3); color: var(--on-ink); border-color: rgba(247, 244, 236, .08); }
.btn-dark:hover { background: #44403a; transform: translateY(-1px); }
.ap-toast { position: absolute; left: 50%; bottom: 22px; transform: translate(-50%, 12px); background: var(--ink); color: var(--paper); font: 500 13px/1 var(--sans); padding: 11px 16px; border-radius: 99px; box-shadow: 0 14px 30px -12px rgba(0, 0, 0, .6), 0 0 0 1px rgba(247, 244, 236, .1); opacity: 0; pointer-events: none; transition: opacity .2s, transform .25s var(--ease); z-index: 5; }
.ap-toast.show { opacity: 1; transform: translate(-50%, 0); }
.below-app { padding-top: 22px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.below-app .stats { margin: 0; }
.below-app .cue { padding: 0; }

/* shell responsive */
@media (max-width: 1280px) {
  .shell { --side: 240px; }
  .ap-body { grid-template-columns: 208px minmax(0, 1fr) minmax(0, 1fr); }
}
@media (max-width: 1080px) {
  .side { display: none; }
  .main-col { margin-left: 0; }
  .tb { padding: 0 16px; }
  .tb-mobile-logo { display: block; }
  .tb-mobile-logo .logo .mark { width: 34px; height: 34px; }
  .tb-crumb { display: none; }
  .tb-search { width: 40px; padding: 0; justify-content: center; }
  .tb-search span, .tb-search kbd { display: none; }
  .tb-cta { display: none; }
  .burger { display: block; margin-left: 0; }
  .ap-profile-bar { flex-wrap: wrap; justify-content: flex-end; }
}
@media (max-width: 900px) {
  .appsec { padding: 12px 12px 0; }
  .app { height: auto; min-height: 0; }
  .ap-head { flex-direction: column; align-items: stretch; gap: 12px; padding: 14px; }
  .ap-title h1 { font-size: 22px; }
  .ap-profile-bar { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .ap-profile-bar select { grid-column: 1 / -1; height: 40px; }
  .ap-profile-bar select { flex: 1; max-width: none; }
  .ap-seg { display: flex; margin: 10px 12px 0; padding: 3px; background: #f1f1f4; border-radius: 10px; }
  .ap-seg button { flex: 1; border: 0; background: transparent; padding: 9px; border-radius: 8px; font: 600 13.5px/1 var(--sans); color: var(--muted); cursor: pointer; }
  .ap-seg button[aria-pressed="true"] { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(22, 21, 15, .15); }
  .ap-body { display: block; margin-top: 10px; }
  .ap-col { display: none; overflow: visible; }
  .app[data-pane="task"] .ap-side, .app[data-pane="details"] .ap-form, .app[data-pane="prompt"] .ap-out { display: block; }
  .app[data-pane="prompt"] .ap-out { display: flex; }
  .ap-side { border-right: 0; }
  .ap-form { padding: 14px 12px; }
  .ap-pre { max-height: 60vh; min-height: 300px; }
  .below-app { padding: 18px 16px 0; }
}
@media (max-width: 600px) {
  .ap-grid { grid-template-columns: 1fr; }
  .ap-actions .btn { flex: 1; justify-content: center; }
  .ap-actions .btn-hi kbd { display: none; }
  .ap-stats .ap-stat-c { display: none; }
}

/* Sublime-style syntax accents: hot pink keywords */
.ap-pre .kw { color: var(--pink); font-weight: 500; }
.ap-pre .dash { color: #6f6a5c; }
.pc-text .kw { color: var(--pink-dk); font-weight: 500; }
.pc-text .dash { color: #a1a1aa; }
.ap-progress i { background: linear-gradient(90deg, var(--hi), var(--hi-lt) 70%, var(--pink)); }
.ap-pre::selection, .ap-pre *::selection { background: rgba(249, 38, 114, .3); }
.pc-text { border-left-color: var(--pink); }
.side-nav a[aria-current] i { color: var(--pink); }

/* Sidebar: true black with white text */
.side { background: #0b0b0a; color: #fff; border-right: 1px solid #000; }
.side::after { background: radial-gradient(120% 34% at 0% 0%, rgba(91, 75, 219, .22), transparent 62%); }
.side-top { border-bottom-color: rgba(255, 255, 255, .08); }
.side .logo { color: #fff; }
.side .logo .mark { color: #fff; --mark-fg: #0b0b0a; }
.side-search { border-color: rgba(255, 255, 255, .1); background: rgba(255, 255, 255, .04); color: rgba(255, 255, 255, .62); }
.side-search:hover { background: rgba(255, 255, 255, .08); color: #fff; }
.side-search kbd { border-color: rgba(255, 255, 255, .14); color: rgba(255, 255, 255, .62); background: transparent; }
.side-label { color: rgba(255, 255, 255, .42); }
.side-nav a, .sg summary { color: rgba(255, 255, 255, .86); }
.side-nav a:hover, .sg summary:hover { background: rgba(255, 255, 255, .06); color: #fff; }
.side-nav a i, .sg summary i { color: rgba(255, 255, 255, .5); }
.side-nav a[aria-current] { background: rgba(255, 255, 255, .09); color: #fff; font-weight: 600; }
.side-nav a[aria-current]::before { background: var(--pink); }
.side-nav a[aria-current] i { color: var(--pink); }
.sg summary .n { color: rgba(255, 255, 255, .5); background: rgba(255, 255, 255, .07); }
.sg summary::after { border-color: rgba(255, 255, 255, .45); }
.sg-sub::before { background: rgba(255, 255, 255, .1); }
.sg-sub a { color: rgba(255, 255, 255, .66); }
.sg-sub a:hover { color: #fff; }
.side-foot { border-top-color: rgba(255, 255, 255, .08); }
.side-foot a { color: rgba(255, 255, 255, .45); }
.side-foot a:hover { color: #fff; }

/* =====================================================================
   Elevation pass: editor-grade code, prompt cards, feedback states
   ===================================================================== */
.ln { display: block; position: relative; padding-left: 46px; min-height: 1.75em; }
.ln::before { counter-increment: ln; content: counter(ln); position: absolute; left: 0; width: 30px; text-align: right; color: #55514a; font-size: .86em; user-select: none; -webkit-user-select: none; }
.ap-pre, .pc-text { counter-reset: ln; }
.ap-pre { padding-left: 14px; }
.ap-pre .ln:hover { background: rgba(255, 255, 255, .03); }

.code { background: #0f0e0b; border-radius: 12px; overflow: hidden; box-shadow: 0 0 0 1px rgba(0, 0, 0, .6), 0 20px 40px -26px rgba(22, 21, 15, .7); margin: 16px 0 0; }
.code-bar { display: flex; align-items: center; gap: 10px; padding: 9px 10px 9px 14px; background: #181712; border-bottom: 1px solid rgba(255, 255, 255, .06); font: 400 12px/1 var(--mono); color: #9b9686; }
.code-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--pink); box-shadow: 0 0 0 3px rgba(249, 38, 114, .16); flex-shrink: 0; }
.code-file { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.code-acts { margin-left: auto; display: flex; gap: 6px; flex-shrink: 0; }
.cbtn { font: 600 12.5px/1 var(--sans); padding: 7px 10px; border-radius: 7px; border: 1px solid rgba(255, 255, 255, .1); background: rgba(255, 255, 255, .04); color: #e9e5d8; cursor: pointer; text-decoration: none; transition: background .15s, border-color .15s, color .15s; white-space: nowrap; }
.cbtn:hover { background: rgba(255, 255, 255, .1); color: #fff; text-decoration: none; }
.cbtn-main { background: var(--hi); border-color: var(--hi); color: #fff; }
.cbtn-main:hover { background: var(--hi-dk); border-color: var(--hi-dk); }
.code .pc-text { margin: 0; background: transparent; border: 0; border-radius: 0; padding: 16px 18px 18px 8px; color: #e9e5d8; font: 400 13.5px/1.75 var(--mono); max-height: 520px; overflow: auto; scrollbar-width: thin; scrollbar-color: #34312a transparent; }
.code .pc-text mark { background: rgba(169, 157, 255, .15); color: var(--hi-lt); border-radius: 3px; padding: 0 2px; }
.code .pc-text .kw { color: var(--pink); }
.code .pc-text .dash { color: #6f6a5c; }

.pc { padding: 22px 22px 20px; border-radius: 16px; background: #fff; box-shadow: 0 1px 2px rgba(22, 21, 15, .04); transition: box-shadow .25s, border-color .25s; }
.pc:hover { border-color: #d4d4da; box-shadow: 0 18px 40px -30px rgba(22, 21, 15, .45); }
.pc-head { display: flex; align-items: flex-start; gap: 14px; }
.pc-head > div { flex: 1; min-width: 0; }
.pc-head h3 { margin: 0 0 4px; font-size: 1.12rem; display: block; }
.pc-head .pc-use { margin: 0; font-size: 14.5px; }
.pc .pc-n { flex-shrink: 0; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: var(--hi-soft); color: var(--hi-ink); font: 500 12.5px/1 var(--mono); margin-top: 1px; }
.pc-anchor { flex-shrink: 0; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; color: #a1a1aa; text-decoration: none; font: 500 15px/1 var(--mono); opacity: 0; transition: opacity .2s, background .15s; }
.pc:hover .pc-anchor, .pc-anchor:focus-visible { opacity: 1; }
.pc-anchor:hover { background: var(--paper); color: var(--ink); }
.pc-tip { display: flex; gap: 10px; margin: 14px 0 0; padding: 12px 14px; border-radius: 10px; background: #fafafb; border: 1px solid #ececf0; font-size: 14.5px; }
.pc-tip b { flex-shrink: 0; font: 600 11.5px/1.9 var(--mono); color: var(--pink-dk); }
.pc:target { box-shadow: 0 0 0 3px var(--hi-soft), 0 18px 40px -30px rgba(22, 21, 15, .45); border-color: var(--hi); }

.is-done { background: #1f9d6b !important; border-color: #1f9d6b !important; color: #fff !important; }
.ap-keys { display: flex; flex-wrap: wrap; gap: 14px; margin: 0; padding: 0 18px 12px; background: rgba(0, 0, 0, .18); font: 400 11.5px/1 var(--sans); color: #8d8774; }
.ap-keys kbd { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .1); color: #c9c4b4; padding: 3px 5px; margin-right: 2px; }
.tb-crumb a { color: var(--muted); text-decoration: none; }
.tb-crumb a:hover { color: var(--ink); }
.tb-crumb span { color: var(--ink); font-weight: 600; }
.ap-profile-bar [data-example] { border-color: var(--hi) !important; color: var(--hi-ink); }
.ap-profile-bar [data-example]:hover { background: var(--hi); color: #fff; }
@media (max-width: 600px) {
  .code-bar { flex-wrap: wrap; }
  .code-acts { margin-left: 0; width: 100%; }
  .cbtn { flex: 1; text-align: center; padding: 9px; }
  .ln { padding-left: 34px; }
  .ln::before { width: 22px; }
  .pc .pc-n { width: 28px; height: 28px; }
  .ap-keys { display: none; }
  .ap-profile-bar { grid-template-columns: 1fr 1fr; }
}
.side-top { position: relative; z-index: 2; }
.side .logo, .side .logo-word i { color: #fff; opacity: 1; }
.side .logo .mark { color: #fff; --mark-fg: #0b0b0a; }

body.nav-open .site-header .logo { color: var(--on-ink); }
body.nav-open .site-header .mark { color: #fff; --mark-fg: var(--ink); }

/* Ad slots: designed, labeled, reserved height to avoid layout shift */
.ad { margin: 34px 0; padding: 14px 16px 16px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.ad-label { margin: 0 0 10px; font: 500 11.5px/1 var(--mono); color: #9a9aa4; }
.ad ins { min-height: 250px; }
.below-app + .wrap .ad, .wrap > .ad { margin-top: 26px; }
body.nav-open.shell .site-header { background: transparent; border-bottom-color: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }
body.nav-open .tb-search { opacity: 0; pointer-events: none; }
body.nav-open .site-header .logo-word i { color: #fff; opacity: .78; }

/* =====================================================================
   Premium toolkit pass: white canvas, docs-style interior layout
   ===================================================================== */
.shell { background: #fff; }
.shell .wrap { max-width: 1180px; margin: 0; padding: 0 44px; }
.shell .phero { padding: 34px 0 30px; border-bottom: 1px solid var(--line); }
.shell .phero::after { color: rgba(23, 23, 28, .035); }
.shell .section { padding: 56px 0; }
.shell .section.alt { background: #f8f8f9; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.art-grid { grid-template-columns: minmax(0, 760px) 210px; gap: 72px; justify-content: start; }
.art-grid .toc { order: 2; }
.art-grid .prose { max-width: none; }
.toc ol { border-left-color: var(--line); }
.toc a.on { border-left-color: var(--hi); color: var(--hi-ink); }
.card { border-color: var(--line); box-shadow: 0 1px 2px rgba(23, 23, 28, .04); }
.card:hover { border-color: #cfcfd6; box-shadow: 0 14px 32px -22px rgba(23, 23, 28, .35); }
.pc, .faq details, .note, .example, .stats span { border-color: var(--line); }
.faq details { box-shadow: 0 1px 2px rgba(23, 23, 28, .03); }
.example { border-style: solid; background: #fafafb; }
.app { border-color: var(--line); box-shadow: 0 1px 2px rgba(23, 23, 28, .04), 0 24px 56px -40px rgba(23, 23, 28, .4); }
.ap-head, .ap-side { border-color: var(--line); }
.shell .site-footer { background: #0b0b0a; }
@media (max-width: 1240px) {
  .art-grid { grid-template-columns: minmax(0, 1fr) 190px; gap: 48px; }
}
@media (max-width: 1080px) {
  .shell .wrap { padding: 0 28px; }
  .art-grid { grid-template-columns: minmax(0, 1fr); }
  .art-grid .toc { order: 0; }
}
@media (max-width: 600px) {
  .shell .wrap { padding: 0 16px; }
}
.ap-field select { padding-right: 28px; text-overflow: ellipsis; background-position: calc(100% - 13px) 50%, calc(100% - 8px) 50%; }