/* Issue #513 Living Thread v1. Platform owns shell/theme; artifact owns center canvas only. */
.i513-hero{position:relative;overflow:hidden;padding:clamp(68px,9vw,118px) 0 62px;border-bottom:1px solid var(--line)}
.i513-hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.18;background-image:repeating-linear-gradient(90deg,transparent 0 54px,var(--line) 55px 56px);mask-image:linear-gradient(to bottom,#000,transparent 88%)}
.i513-hero::after{content:"";position:absolute;left:0;right:0;bottom:28%;height:2px;background:linear-gradient(90deg,transparent 0 7%,var(--line) 7% 38%,var(--accent) 38% 63%,var(--line) 63% 92%,transparent 92%);opacity:.7}
.i513-hero__grid{position:relative;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);gap:clamp(36px,6vw,78px);align-items:end}
.i513-kicker,.i513-meta span,.i513-signal__eyebrow,.i513-signal__pair span,.i513-thesis>span,.i513-section__head>span,.i513-plate figcaption span,.i513-threads li span,.i513-timeline li span,.i513-capacity span,.i513-flow li span,.i513-selfproof li span,.i513-selective li span,.i513-reentry aside>span,.i513-leave__rail span,.i513-labor section>span,.i513-closing>span{font:800 .62rem/1.3 ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;letter-spacing:.095em;text-transform:uppercase}
.i513-kicker{color:var(--accent)}
.i513-hero h1{max-width:980px;margin:17px 0 24px;font-size:clamp(3.35rem,7.1vw,6.8rem);line-height:.89;letter-spacing:-.068em;font-weight:900}.i513-hero h1 em{font-style:normal;color:var(--accent)}
.i513-dek{max-width:820px;margin:0;color:var(--muted);font-size:clamp(1.14rem,2vw,1.58rem);line-height:1.45}
.i513-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}.i513-meta span{padding:9px 2px 0;border-top:1px solid var(--line);color:var(--muted)}
.i513-signal{border:1px solid var(--line);background:color-mix(in srgb,var(--surface),var(--page) 18%);padding:22px;box-shadow:0 22px 70px color-mix(in srgb,var(--ink),transparent 94%)}
.i513-signal__eyebrow{color:var(--accent);margin-bottom:12px}.i513-signal__pair{display:grid;grid-template-columns:38px 1fr;gap:10px;padding:14px 0;border-top:1px solid var(--line)}.i513-signal__pair span{color:var(--muted)}.i513-signal__pair strong{font-size:1.04rem;line-height:1.25}.i513-signal p{margin:15px 0 0;color:var(--muted);font-size:.84rem;line-height:1.55}
.i513-thesis{display:grid;grid-template-columns:150px minmax(0,860px);gap:28px;align-items:start;margin:0 auto;padding:30px 0 38px;border-bottom:1px solid var(--ink)}.i513-thesis>span{padding-top:8px;color:var(--accent)}.i513-thesis p{margin:0;font-size:clamp(1.42rem,2.6vw,2.22rem);line-height:1.2;letter-spacing:-.035em;font-weight:760}
.sp-article--the-mind-is-sparse-the-machine-should-remember{width:100%;padding-top:0}.sp-article--the-mind-is-sparse-the-machine-should-remember>.sp-provisional{width:min(calc(100% - 32px),820px);margin:48px auto 0}
.i513-body{width:min(calc(100% - 32px),1200px);margin:0 auto}.i513-section{padding:clamp(70px,8vw,112px) 0;border-top:1px solid var(--line)}.i513-section:first-child{border-top:0}
.i513-section__head{display:grid;grid-template-columns:150px minmax(0,830px);gap:28px;align-items:start;margin-bottom:32px}.i513-section__head>span{padding-top:9px;color:var(--accent)}.i513-section h2{margin:0;max-width:940px;font-size:clamp(2.55rem,5vw,4.8rem);line-height:.96;letter-spacing:-.057em}
.i513-section__body{width:min(100%,960px);margin-left:min(178px,14.9vw)}.i513-section__body>p,.i513-section__body>h3,.i513-section__body>ul,.i513-section__body>ol,.i513-section__body>blockquote{width:min(100%,740px)}
.i513-section__body p{margin:0 0 20px;font-size:1.08rem;line-height:1.74}.i513-section__body h3{margin:42px 0 13px;font-size:1.35rem;letter-spacing:-.025em}.i513-section__body blockquote{margin:28px 0;padding:0 0 0 18px;border-left:3px solid var(--accent);font-size:clamp(1.22rem,2.1vw,1.6rem);line-height:1.42;font-weight:720}.i513-section__body ul,.i513-section__body ol{padding-left:1.3rem}.i513-section__body li{margin:.5rem 0;line-height:1.55}
.i513-principle{width:min(100%,800px);margin:31px 0;padding:22px 0;border-top:2px solid var(--accent);border-bottom:1px solid var(--line);font-size:clamp(1.34rem,2.4vw,1.9rem);line-height:1.3;font-weight:780;letter-spacing:-.025em}
.i513-plate{width:100%;margin:8px 0 42px;border:1px solid var(--line);background:color-mix(in srgb,var(--surface),var(--page) 16%);padding:24px;overflow:hidden}.i513-plate figcaption{display:flex;justify-content:space-between;gap:24px;align-items:baseline;padding-bottom:16px;margin-bottom:20px;border-bottom:1px solid var(--line)}.i513-plate figcaption strong{font-size:1rem}.i513-plate figcaption span{color:var(--muted);text-align:right}.i513-plate-note{width:100%!important;margin:18px 0 0!important;padding-top:14px;border-top:1px solid var(--line);color:var(--muted)!important;font-size:.83rem!important;line-height:1.5!important}
.i513-threads ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.i513-threads li{min-height:86px;padding:12px;border:1px solid var(--line);background:var(--page);display:flex;flex-direction:column;justify-content:space-between}.i513-threads li span{color:var(--muted)}.i513-threads li strong{font-size:.76rem;text-transform:capitalize}.i513-threads li.is-active{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:color-mix(in srgb,var(--accent),transparent 94%)}.i513-threads li.is-active span,.i513-threads li.is-active strong{color:var(--accent)}
.i513-timeline ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}.i513-timeline li{min-height:105px;padding:12px;background:var(--page);display:flex;flex-direction:column;justify-content:space-between;position:relative}.i513-timeline li span{color:var(--muted)}.i513-timeline li strong{font-size:.72rem}.i513-timeline li:not(:last-child)::after{content:"→";position:absolute;right:-8px;top:50%;z-index:2;transform:translate(50%,-50%);background:var(--surface);color:var(--accent);width:20px;height:20px;display:grid;place-items:center;font-weight:900}
.i513-capacity__field{position:relative;min-height:290px;border:1px solid var(--line);background:var(--page);overflow:hidden}.i513-capacity__latent{position:absolute;inset:0;padding:18px}.i513-capacity__latent>span{color:var(--muted)}.i513-dotfield{position:absolute;inset:54px 18px 18px;background-image:radial-gradient(circle,currentColor 1px,transparent 1.5px);background-size:18px 18px;color:color-mix(in srgb,var(--muted),transparent 65%)}.i513-capacity__active{position:absolute;left:35%;top:33%;width:32%;min-height:112px;border:2px solid var(--accent);background:var(--surface);padding:15px;box-shadow:0 20px 45px color-mix(in srgb,var(--ink),transparent 90%);display:flex;flex-direction:column;justify-content:space-between}.i513-capacity__active span{color:var(--accent)}.i513-capacity__active strong{font-size:1rem;line-height:1.25}
.i513-moe__stats{display:grid;grid-template-columns:1fr 42px 1fr;gap:12px;align-items:center;max-width:660px;margin:0 auto 22px}.i513-moe__stats>div{padding:20px;border-top:3px solid var(--line);background:var(--page)}.i513-moe__stats>div:last-child{border-top-color:var(--accent)}.i513-moe__stats strong{display:block;font-size:clamp(2.7rem,6vw,4.8rem);line-height:.9;letter-spacing:-.06em}.i513-moe__stats span{display:block;margin-top:10px;color:var(--muted);font-size:.78rem}.i513-moe__stats i{text-align:center;color:var(--accent);font-style:normal;font-size:1.7rem}.i513-moe__experts{display:grid;grid-template-columns:repeat(12,1fr);gap:5px}.i513-moe__experts span{padding:14px 4px;border:1px solid var(--line);background:var(--page);font:700 .6rem/1 ui-monospace,monospace;text-align:center;color:var(--muted)}.i513-moe__experts span.on{border-color:var(--accent);background:color-mix(in srgb,var(--accent),transparent 92%);color:var(--accent);font-weight:900}
.i513-flow ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.i513-flow li{position:relative;min-height:112px;padding:14px;border:1px solid var(--line);background:var(--page);display:flex;flex-direction:column;justify-content:space-between;gap:18px}.i513-flow li span{color:var(--muted)}.i513-flow li strong{font-size:.76rem;line-height:1.35}.i513-flow li:not(:last-child)::after{content:"→";position:absolute;right:-10px;top:50%;z-index:2;transform:translate(50%,-50%);width:24px;height:24px;background:var(--surface);color:var(--accent);display:grid;place-items:center;font-weight:900}
.i513-selfproof ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.i513-selfproof li{min-height:118px;padding:14px;border:1px solid var(--line);background:var(--page);display:flex;flex-direction:column;gap:14px}.i513-selfproof li span{color:var(--accent)}.i513-selfproof li strong{font-size:.83rem;line-height:1.35}.i513-selfproof blockquote{width:100%!important;margin:18px 0 0!important;padding:20px!important;border:0!important;border-top:2px solid var(--accent)!important;font-size:clamp(1.3rem,2.4vw,1.8rem)!important;line-height:1.3!important}
.i513-continuity ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.i513-continuity li{min-height:88px;padding:12px;border:1px solid var(--line);background:var(--page);display:flex;flex-direction:column;justify-content:space-between}.i513-continuity li span{font:800 .61rem/1 ui-monospace,monospace;color:var(--muted)}.i513-continuity li strong{font-size:.78rem;text-transform:capitalize}
.i513-selective ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.i513-selective li{padding:15px;border-left:3px solid var(--line);background:var(--page)}.i513-selective li:nth-child(1),.i513-selective li:nth-child(5),.i513-selective li:nth-child(6){border-left-color:var(--accent)}.i513-selective li span{color:var(--accent)}.i513-selective li p{width:auto!important;margin:8px 0 0!important;color:var(--muted)!important;font-size:.82rem!important;line-height:1.45!important}
.i513-reentry__grid{display:grid;grid-template-columns:1.25fr .75fr;gap:12px}.i513-reentry ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.i513-reentry li{margin:0!important;padding:11px;border:1px solid var(--line);background:var(--page);font:700 .72rem/1.35 ui-monospace,monospace}.i513-reentry aside{padding:17px;border:1px solid var(--line);border-top:3px solid var(--accent);background:var(--page)}.i513-reentry aside>span{color:var(--accent)}.i513-reentry aside strong{display:block;margin-top:14px;font-size:1.25rem}.i513-reentry aside p{width:auto!important;margin:4px 0!important;color:var(--muted)!important;font-size:.79rem!important;line-height:1.4!important}
.i513-leave__rail{display:grid;grid-template-columns:1fr 34px 1fr 34px 1fr 34px 1.15fr;gap:4px;align-items:center}.i513-leave__rail>div{min-height:116px;padding:14px;border:1px solid var(--line);background:var(--page);display:flex;flex-direction:column;justify-content:space-between}.i513-leave__rail>div span{color:var(--accent)}.i513-leave__rail>div strong{font-size:.8rem;line-height:1.35}.i513-leave__rail>div.is-quiet{opacity:.62;border-style:dashed}.i513-leave__rail>i{font-style:normal;color:var(--accent);text-align:center;font-weight:900}
.i513-labor__grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.i513-labor section{border:1px solid var(--line);background:var(--page);padding:18px}.i513-labor section>span{color:var(--accent)}.i513-labor ul{list-style:none;padding:0;margin:14px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.i513-labor li{margin:0!important;padding:10px;border-top:1px solid var(--line);font-size:.8rem;font-weight:700}
.i513-closing{width:min(100%,900px);margin:62px 0 10px;padding:34px 0 0;border-top:3px solid var(--accent)}.i513-closing__threads{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:26px}.i513-closing__threads i{height:2px;background:var(--line)}.i513-closing__threads i.active{height:3px;background:var(--accent)}.i513-closing>span{display:block;color:var(--accent);margin-bottom:8px}.i513-closing>p{width:100%!important;color:var(--muted)!important}.i513-closing>strong{display:block;font-size:clamp(2.35rem,5vw,4.7rem);line-height:.98;letter-spacing:-.055em}.i513-closing>strong+strong{color:var(--accent)}.i513-closing blockquote{width:100%!important;margin:34px 0 0!important;padding:24px 0 0!important;border-left:0!important;border-top:1px solid var(--line);font-size:clamp(1.55rem,3vw,2.6rem)!important;line-height:1.22!important}.i513-closing blockquote b{color:var(--accent)}
.i513-table{width:100%;margin:30px 0}.i513-table .sp-table-region{border:1px solid var(--line);border-radius:0}
@media(max-width:940px){.i513-hero__grid{grid-template-columns:1fr}.i513-signal{max-width:660px}.i513-thesis,.i513-section__head{grid-template-columns:1fr;gap:8px}.i513-thesis>span,.i513-section__head>span{padding-top:0}.i513-section__body{margin-left:0}.i513-timeline ol{grid-template-columns:repeat(4,minmax(0,1fr))}.i513-flow ol{grid-template-columns:repeat(3,minmax(0,1fr))}.i513-moe__experts{grid-template-columns:repeat(6,1fr)}.i513-leave__rail{grid-template-columns:1fr}.i513-leave__rail>i{transform:rotate(90deg)} }
@media(max-width:680px){.i513-hero h1{font-size:clamp(3rem,15vw,4.65rem)}.i513-plate{padding:16px}.i513-plate figcaption{display:grid;gap:6px}.i513-plate figcaption span{text-align:left}.i513-threads ol{grid-template-columns:repeat(3,minmax(0,1fr))}.i513-timeline ol,.i513-flow ol,.i513-selfproof ol,.i513-continuity ol,.i513-selective ol,.i513-labor__grid,.i513-reentry__grid{grid-template-columns:1fr}.i513-flow li:not(:last-child)::after{content:"↓";right:50%;top:auto;bottom:-14px;transform:translate(50%,50%)}.i513-moe__stats{grid-template-columns:1fr}.i513-moe__stats i{transform:rotate(90deg)}.i513-moe__experts{grid-template-columns:repeat(4,1fr)}.i513-capacity__active{left:18%;width:64%}.i513-reentry ul,.i513-labor ul{grid-template-columns:1fr}.i513-section h2{font-size:clamp(2.3rem,12vw,3.5rem)}}
@media(max-width:420px){.i513-threads ol{grid-template-columns:repeat(2,minmax(0,1fr))}.i513-timeline ol{grid-template-columns:repeat(2,minmax(0,1fr))}.i513-moe__experts{grid-template-columns:repeat(3,1fr)}.i513-capacity__field{min-height:250px}}
@media print{.i513-hero::before,.i513-hero::after{display:none}.i513-plate,.i513-signal{break-inside:avoid}.i513-threads li,.i513-timeline li,.i513-flow li,.i513-selfproof li,.i513-continuity li,.i513-selective li,.i513-reentry li,.i513-reentry aside,.i513-leave__rail>div,.i513-labor section{background:#fff}}