:root{color-scheme:dark;--bg:#05090d;--panel:#0b1218;--panel-2:#101a22;--line:#20313d;--text:#eef6fa;--muted:#a5b5bf;--cyan:#71d4ff;--cyan-2:#b8edff;--max:1180px;--reading:760px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 75% 0,rgba(54,174,230,.11),transparent 28%),var(--bg);color:var(--text);font:16px/1.7 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--cyan)}a:hover{color:var(--cyan-2)}img{max-width:100%;height:auto}.skip-link{position:fixed;left:1rem;top:-5rem;z-index:100;background:#fff;color:#000;padding:.75rem 1rem;border-radius:.5rem}.skip-link:focus{top:1rem}.site-header{position:sticky;top:0;z-index:50;background:rgba(5,9,13,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner{max-width:var(--max);min-height:74px;margin:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;color:var(--text);font-weight:850;letter-spacing:.1em;text-decoration:none;white-space:nowrap}.brand img{width:42px;height:42px}.nav-toggle{display:none;min-width:44px;min-height:44px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--text);font:inherit;font-weight:800}.main-nav{display:flex;align-items:center;gap:19px}.main-nav a{color:var(--muted);text-decoration:none;font-size:.88rem;font-weight:700;white-space:nowrap}.main-nav a:hover,.main-nav a[aria-current=page]{color:var(--text)}.hero{min-height:660px;display:grid;align-items:center;background:radial-gradient(circle at 76% 18%,rgba(79,202,255,.14),transparent 34%),linear-gradient(rgba(77,158,207,.075) 1px,transparent 1px),linear-gradient(90deg,rgba(77,158,207,.075) 1px,transparent 1px),linear-gradient(135deg,#05090d,#09141d);background-size:auto,64px 64px,64px 64px,auto;border-bottom:1px solid var(--line)}.hero-inner,.page-hero,.section,.article-layout{width:100%;max-width:var(--max);margin:auto;padding-left:24px;padding-right:24px}.hero-copy{max-width:730px;padding:92px 0}.eyebrow{color:#86cce9;font-size:.76rem;font-weight:850;letter-spacing:.18em;text-transform:uppercase}.hero h1,.page-hero h1{font-size:clamp(3rem,7vw,6rem);line-height:.98;letter-spacing:-.055em;margin:.5rem 0 1.4rem;text-wrap:balance}.hero h1 span{color:var(--cyan)}.hero p,.page-hero p,.lead{color:#bccbd3;font-size:clamp(1.08rem,2vw,1.3rem);max-width:760px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.7rem 1rem;border:1px solid #324957;border-radius:11px;background:var(--panel);color:var(--text);font-weight:800;text-decoration:none}.button.primary{border-color:transparent;background:linear-gradient(135deg,var(--cyan-2),var(--cyan));color:#041018}.section{padding-top:78px;padding-bottom:78px;border-bottom:1px solid var(--line)}.section-head{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:end;margin-bottom:34px}.section h2,.article h2{font-size:clamp(2rem,4vw,3.5rem);line-height:1.06;letter-spacing:-.035em;margin:.4rem 0}.section-head p{color:var(--muted);font-size:1.08rem}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{min-width:0;display:flex;flex-direction:column;gap:10px;padding:26px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(145deg,rgba(18,31,40,.92),rgba(8,14,19,.96));color:var(--text);text-decoration:none;box-shadow:0 18px 45px rgba(0,0,0,.16)}.card:hover{border-color:#4d8aa7;transform:translateY(-2px)}.card small,.meta{color:#7ebbd5;font-weight:800;letter-spacing:.09em;text-transform:uppercase}.card h3{font-size:1.45rem;line-height:1.18;margin:0}.card p{margin:0;color:var(--muted)}.card .arrow{margin-top:auto;padding-top:12px;color:var(--cyan);font-weight:800}.page-hero{padding-top:88px;padding-bottom:62px}.page-hero h1{font-size:clamp(3rem,6vw,5.2rem)}.breadcrumbs{font-size:.9rem;color:var(--muted);margin-bottom:25px}.breadcrumbs a{color:var(--muted)}.article-layout{display:grid;grid-template-columns:minmax(0,var(--reading)) 280px;gap:64px;align-items:start;padding-bottom:90px}.article{min-width:0}.article h2{font-size:clamp(1.8rem,3vw,2.55rem);margin-top:2.3rem}.article h3{font-size:1.35rem;margin-top:1.8rem}.article p,.article li{color:#c3d0d7}.article pre{overflow:auto;padding:18px;border:1px solid var(--line);border-radius:12px;background:#030609;color:#d7f3ff;font-size:.9rem}.article code{overflow-wrap:anywhere}.article table{width:100%;border-collapse:collapse;display:block;overflow-x:auto}.article th,.article td{padding:.75rem;border:1px solid var(--line);text-align:left;min-width:140px}.article th{background:var(--panel-2)}.callout{margin:26px 0;padding:20px 22px;border-left:3px solid var(--cyan);background:var(--panel);border-radius:0 12px 12px 0}.callout strong{display:block;margin-bottom:5px}.toc{position:sticky;top:100px;padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.toc strong{display:block;margin-bottom:10px}.toc a{display:block;padding:.3rem 0;color:var(--muted);text-decoration:none}.category{margin-top:50px}.category h2{font-size:2rem}.status-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.status{padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}.status-label{display:inline-flex;border:1px solid #315163;border-radius:999px;padding:.25rem .55rem;color:var(--cyan-2);font-size:.72rem;font-weight:850;text-transform:uppercase;letter-spacing:.08em}.roadmap{counter-reset:phase;display:grid;gap:14px}.roadmap article{counter-increment:phase;padding:22px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.roadmap article:before{content:"Phase " counter(phase);display:block;color:#7ebbd5;font-size:.75rem;font-weight:850;letter-spacing:.12em;text-transform:uppercase}.roadmap h3{margin:.3rem 0}.empty-store{text-align:center;padding:60px 24px;border:1px dashed #3a5667;border-radius:22px;background:var(--panel)}.site-footer{border-top:1px solid var(--line)}.footer-inner{max-width:var(--max);margin:auto;padding:42px 24px;display:grid;grid-template-columns:1.2fr 1fr;gap:36px;color:var(--muted)}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.footer-links a{color:var(--muted)}.fine-print{font-size:.9rem;color:#80929e}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}a:focus-visible,button:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}@media(max-width:980px){.nav-toggle{display:inline-flex;align-items:center;justify-content:center}.main-nav{display:none;position:absolute;left:0;right:0;top:74px;padding:18px 24px 24px;background:#071017;border-bottom:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:0}.main-nav.open{display:grid}.main-nav a{min-height:48px;display:flex;align-items:center;border-bottom:1px solid #172832}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:1fr}.toc{position:static;order:-1}.status-grid{grid-template-columns:1fr}}@media(max-width:680px){.header-inner{padding:0 18px}.brand span{font-size:.83rem}.hero{min-height:610px;background-position:67% center}.hero-copy{padding:70px 0}.hero-inner,.page-hero,.section,.article-layout{padding-left:18px;padding-right:18px}.section{padding-top:58px;padding-bottom:58px}.section-head{grid-template-columns:1fr;gap:10px}.card-grid{grid-template-columns:1fr}.actions{display:grid}.button{width:100%}.footer-inner{grid-template-columns:1fr}.article pre{font-size:.8rem}.page-hero{padding-top:62px}.hero h1{font-size:3.25rem}}
.article pre:focus-visible,.table-scroll:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}.table-scroll{max-width:100%;overflow-x:auto;border-radius:12px}.table-scroll table{display:table;min-width:1050px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.resource-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.resource-card{min-width:0;display:flex;flex-direction:column;padding:26px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(145deg,rgba(18,31,40,.92),rgba(8,14,19,.96));box-shadow:0 18px 45px rgba(0,0,0,.16)}.resource-card h3{font-size:1.45rem;line-height:1.18;margin:.55rem 0}.resource-card p{color:var(--muted)}.resource-card .actions{margin-top:auto;padding-top:8px}.resource-format{align-self:flex-start;border:1px solid #315163;border-radius:999px;padding:.25rem .55rem;color:var(--cyan-2);font-size:.72rem;font-weight:850;text-transform:uppercase;letter-spacing:.08em}.resource-files{overflow-wrap:anywhere;font-size:.94rem}.resource-files strong{color:var(--text)}
.resource-use strong,.resource-purpose strong{color:var(--text)}.resource-actions{align-items:center}.text-action{display:inline-flex;min-height:48px;align-items:center;padding:.7rem .35rem;font-weight:800}.resource-preview-layout{width:100%;max-width:var(--max);margin:auto;padding:0 24px 90px}.resource-preview{max-width:940px}.resource-preview h2{scroll-margin-top:100px}.resource-preview .rendered-markdown>h2:first-child{margin-top:1rem}.back-link{font-weight:800;text-decoration:none}.preview-end{margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}.source-section{margin-top:50px}.source-heading,.code-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px}.source-heading h2{margin-bottom:1rem}.code-viewer{margin:18px 0 28px;border:1px solid var(--line);border-radius:14px;background:#030609;overflow:hidden}.code-toolbar{padding:10px 12px;border-bottom:1px solid var(--line);background:#0a1218;color:var(--muted);font-size:.86rem;font-weight:800}.copy-code{min-height:40px;padding:.45rem .75rem;border:1px solid #3a5d70;border-radius:9px;background:#101d26;color:var(--text);font:inherit;font-weight:800;cursor:pointer}.copy-code:hover{border-color:var(--cyan);color:var(--cyan-2)}.code-viewer pre{margin:0;border:0;border-radius:0;max-height:640px}.copy-status{min-height:1.5em;margin:0;padding:0 12px 8px;color:var(--cyan-2);font-size:.82rem}.token-comment{color:#7f9aa8}.token-string{color:#a7e8a0}.token-number{color:#ffc978}.token-keyword{color:#8ed9ff;font-weight:700}.token-add{color:#9ce89b}.token-remove{color:#ff9b9b}.table-scroll{width:100%;overflow:auto;border:1px solid var(--line);border-radius:14px}.resource-preview table{width:max-content;min-width:100%;border-collapse:collapse}.resource-preview th,.resource-preview td{min-width:150px;padding:.7rem .8rem;border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.resource-preview th{background:var(--panel-2)}.column-guide{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.column-guide div{padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.column-guide dt{font-weight:800}.column-guide dd{margin:.4rem 0 0;color:var(--muted)}.resource-file-list{padding:0;list-style:none;display:grid;gap:8px}.resource-file-list li{display:flex;justify-content:space-between;gap:16px;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:var(--panel)}.resource-file-list span{color:var(--muted);font-size:.78rem;font-weight:800}.rendered-markdown{padding:24px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,rgba(18,31,40,.72),rgba(8,14,19,.82))}@media(max-width:680px){.resource-grid,.column-guide{grid-template-columns:1fr}.resource-preview-layout{padding-left:18px;padding-right:18px}.source-heading{align-items:flex-start;flex-direction:column;gap:0}.code-toolbar{align-items:flex-start}.resource-file-list li{align-items:flex-start;flex-direction:column;gap:2px}}
@media(max-width:680px){.resource-grid{grid-template-columns:1fr}}

/*
 * R2 shared content-frame system.
 * Owner-confirmed: visible framed opening copy and a cohesive frame language.
 * Conservative interpretation: dark translucent panels, restrained cyan edges,
 * soft glow, and page-type-specific spacing. No historical frame CSS was found
 * in the supplied R1 or certified V1.1 reference archives.
 */
:root{
  --frame-border:rgba(113,212,255,.28);
  --frame-border-strong:rgba(113,212,255,.42);
  --frame-bg:linear-gradient(145deg,rgba(14,27,36,.94),rgba(7,14,20,.96));
  --frame-shadow:inset 0 1px 0 rgba(184,237,255,.07),0 24px 64px rgba(0,0,0,.28),0 0 38px rgba(54,174,230,.07);
  --frame-radius:24px;
}
.hero-copy,
.page-hero,
.section,
.article-layout>.article,
.toc{
  border:1px solid var(--frame-border);
  border-radius:var(--frame-radius);
  background:var(--frame-bg);
  box-shadow:var(--frame-shadow);
}
.hero-copy{
  max-width:780px;
  padding:clamp(30px,4vw,50px);
}
.page-hero,
.section{
  width:min(calc(100% - 48px),var(--max));
}
.page-hero{
  margin:48px auto 28px;
  padding:clamp(34px,5vw,58px);
}
.section{
  margin:24px auto;
  padding:clamp(34px,5vw,64px);
  border-bottom:1px solid var(--frame-border);
}
.article-layout{
  width:min(calc(100% - 48px),var(--max));
  padding:0 0 72px;
}
.article-layout>.article{
  padding:clamp(26px,4vw,44px);
}
.toc{
  border-color:var(--frame-border);
  background:linear-gradient(145deg,rgba(14,27,36,.96),rgba(7,14,20,.98));
}
.hero-copy:hover,
.page-hero:hover,
.section:hover,
.article-layout>.article:hover{
  border-color:var(--frame-border-strong);
}
@media(max-width:680px){
  .hero-inner{padding-top:44px;padding-bottom:44px}
  .hero-copy{padding:26px 22px}
  .page-hero,.section,.article-layout{width:calc(100% - 36px)}
  .page-hero{margin-top:28px;margin-bottom:20px;padding:28px 22px}
  .section{margin-top:18px;margin-bottom:18px;padding:30px 22px}
  .article-layout{padding-left:0;padding-right:0;padding-bottom:54px}
  .article-layout>.article{padding:28px 22px}
}
@media(prefers-reduced-motion:reduce){
  .hero-copy,.page-hero,.section,.article-layout>.article{transition:none!important}
}