/* Paper-specific stories share one restrained, accessible reading system. */
.paper-page {--story-secondary:#7959a8;--story-warn:#a1562b;}
:root[data-theme='dark'] .paper-page {--story-secondary:#c1a5ee;--story-warn:#efb27b;}
@media(prefers-color-scheme:dark){:root:not([data-theme='light']) .paper-page {--story-secondary:#c1a5ee;--story-warn:#efb27b;}}
.paper-page .tagline{font-family:'Iowan Old Style','Palatino Linotype',Georgia,serif;font-style:italic;font-weight:400;font-size:clamp(1.12rem,1.8vw,1.28rem);letter-spacing:0;line-height:1.55;}
.paper-page .hero-topics>li::first-letter{text-transform:uppercase;}
.px-panel{max-width:1030px;margin:auto;padding:32px 0 14px;}
.px-kicker{display:block;color:var(--accent);font-size:.73rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;}
.px-intro{max-width:810px;margin-bottom:24px;}
.px-lead{color:var(--muted);font-size:1.08rem;line-height:1.8;margin-top:10px;}
.px-panel strong{font-weight:600;color:var(--text);}
.px-section-heading{margin-bottom:24px;}
.px-section-heading h2{font-size:clamp(1.65rem,3vw,2.25rem);margin-top:7px;}
.px-contributions{display:grid;grid-template-columns:180px 1fr;gap:25px;margin:34px 0;}
.px-contributions h2{font-size:1.05rem;letter-spacing:-.02em;padding-top:11px;}
.px-contributions ul{margin:0;padding:0;list-style:none;}
.px-contributions li{display:flex;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.92rem;line-height:1.8;}
.px-contributions li:first-child{padding-top:7px;}
.px-contributions li:last-child{border-bottom:0;}
.px-bullet{color:var(--accent);font-size:.72rem;padding-top:5px;font-variant-numeric:tabular-nums;font-weight:700;}
.px-details{border-top:1px solid var(--line);padding-top:16px;margin-top:22px;}
.px-details>summary{cursor:pointer;width:fit-content;color:var(--muted);font-size:.84rem;font-weight:600;}
.px-details>summary:hover{color:var(--accent);}
.px-details-body{font-size:.86rem;line-height:1.85;color:var(--muted);padding-top:16px;}
.px-details-body p+p,.px-details-body ul+p{margin-top:12px;}
.px-details-body a{color:var(--accent);display:inline-block;margin-top:10px;}
.px-details-body h3{font-size:.94rem;margin:20px 0 10px;}
.px-details-body ul{padding-left:20px;}
.px-details-body li+li{margin-top:9px;}
.px-method-cards{display:grid;gap:20px;}
.px-method-card{border:1px solid var(--line);border-radius:17px;padding:26px;background:var(--surface);}
.px-method-card>header{display:flex;gap:14px;align-items:baseline;margin-bottom:18px;}
.px-method-card>header>span{font-weight:700;font-size:.75rem;color:var(--accent);background:var(--tint);padding:5px 8px;border-radius:6px;}
.px-method-card h3{font-size:1.15rem;}
.px-method-body{color:var(--muted);font-size:.92rem;line-height:1.85;}
.px-method-body.has-technical{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:25px;align-items:center;}
.px-technical{background:var(--soft);border-radius:10px;padding:20px;min-width:0;}
.px-equation{font-size:1.1rem;color:var(--text);overflow-x:auto;padding:7px 0;}
.px-equation math{margin:auto;max-width:100%;}
.px-formula-note{font-size:.8rem;line-height:1.8;margin-top:10px;}
.px-source{font-size:.8rem;color:var(--accent);margin:20px 0;}
/* Scene controls stay outside the artwork and never shift with a scene. */
.paper-story{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--surface);margin:26px 0;isolation:isolate;}
.paper-story [hidden]{display:none!important;}
.story-head{display:flex;justify-content:space-between;align-items:center;padding:18px 22px 14px;gap:14px;}
.story-toggle{display:flex;align-items:center;justify-content:center;gap:8px;border:0;background:var(--text);color:var(--surface);font-size:.76rem;font-weight:600;padding:11px 14px;border-radius:8px;min-height:42px;min-width:145px;}
.story-toggle svg{width:15px;height:15px;fill:currentColor;}
.story-pause-icon{display:none;}
.paper-story[data-running='true'] .story-play-icon{display:none;}
.paper-story[data-running='true'] .story-pause-icon{display:block;}
.story-steps{display:grid;grid-template-columns:repeat(var(--story-count,4),minmax(0,1fr));gap:7px;padding:0 22px 16px;}
.story-steps button{display:flex;align-items:center;gap:8px;min-height:48px;border:1px solid var(--line);border-radius:9px;padding:10px;font-size:.75rem;line-height:1.45;text-align:left;background:var(--surface);color:var(--muted);}
.story-steps button>span{font-size:.66rem;color:var(--accent);font-weight:700;}
.story-steps button:hover,.story-steps button[aria-pressed='true']{border-color:var(--accent);color:var(--text);background:var(--tint);}
.story-steps button[aria-pressed='true']{font-weight:600;}
.story-progress{height:2px;background:var(--line);overflow:hidden;}
.story-progress>span{display:block;height:100%;background:var(--accent);transform:scaleX(0);transform-origin:left;}
.story-viewport{padding:22px 28px 25px;}
.story-picture{max-width:660px;margin:auto;aspect-ratio:2;display:grid;align-items:center;}
.story-art{display:block;width:100%;height:auto;max-height:340px;overflow:visible;font-family:'Open Sans',sans-serif;color:var(--accent);}
.story-viewport figure+figure{margin-top:35px;}
.paper-story.is-enhanced .story-viewport figure{margin:0;}
.story-viewport figcaption{text-align:center;max-width:750px;margin:14px auto 0;min-height:83px;line-height:1.7;}
.story-viewport figcaption strong{display:block;font-size:1rem;margin-bottom:7px;}
.story-viewport figcaption span{display:block;color:var(--muted);font-size:.86rem;}
.story-art .sa-label{font-size:22px;font-weight:600;fill:var(--text);stroke:none;}
.story-art .sa-small{font-size:18px;fill:var(--muted);stroke:none;font-weight:400;}
.story-art .sa-accent{color:var(--accent);}
.story-art .sa-secondary{color:var(--story-secondary);}
.story-art .sa-muted{color:var(--muted);}
.story-art .sa-warn{color:var(--story-warn);}
.story-art .sa-node>rect{fill:color-mix(in srgb,currentColor 6%,var(--surface));stroke:currentColor;stroke-width:1.5;}
.story-art .sa-link{fill:none;stroke:currentColor;stroke-width:1.6;opacity:.4;}
.story-art .sa-flow{fill:none;stroke:currentColor;stroke-width:2.8;stroke-dasharray:5 11;stroke-linecap:round;}
.story-art .sa-end{fill:currentColor;}
.story-art .sa-cell{stroke:currentColor;stroke-width:1;}
.story-art .sa-on{fill:currentColor;fill-opacity:.8;}
.story-art .sa-off{fill:var(--surface);stroke:var(--line);}
.paper-story.is-enhanced [data-reveal]{transition:opacity .45s ease,transform .45s ease;transform-box:fill-box;transform-origin:center;}
.paper-story [data-revealed='false']{opacity:0;transform:translateY(5px);}
.paper-story[data-running='true'] .sa-flow{animation:story-flow 1.2s linear infinite;}
.paper-story[data-running='false'] *{animation-play-state:paused!important;}
@keyframes story-flow{to{stroke-dashoffset:-32;}}
/* Charts retain every source value; separate scales prevent cost/accuracy confusion. */
.px-result{border:1px solid var(--line);background:var(--surface);border-radius:17px;padding:26px;margin-bottom:24px;}
.px-result-heading{display:flex;gap:14px;align-items:baseline;margin-bottom:11px;}
.px-result-heading>span{font-size:.72rem;font-weight:700;color:var(--accent);}
.px-result-heading h3{font-size:1.2rem;letter-spacing:-.025em;}
.px-result-lead{color:var(--muted);font-size:.88rem;line-height:1.8;margin-bottom:26px;max-width:86ch;}
.px-chart-grid{display:grid;gap:28px;}
.px-chart-grid.paired{grid-template-columns:repeat(2,minmax(0,1fr));}
.px-chart{min-width:0;}
.px-chart>header{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:15px;flex-wrap:wrap;}
.px-chart h4{font-size:.83rem;margin:0;line-height:1.5;font-weight:600;}
.px-chart>header>span{color:var(--muted);font-size:.68rem;}
.px-legend{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:.72rem;color:var(--muted);margin-bottom:17px;}
.px-legend span{display:inline-flex;gap:7px;align-items:center;}
.px-legend i{width:13px;height:8px;background:var(--series-color);border-radius:2px;flex-shrink:0;}
.px-series-0{--series-color:var(--accent);}
.px-series-1{--series-color:var(--story-secondary);}
.px-series-2{--series-color:var(--story-warn);}
.px-series-3{--series-color:var(--muted);}
.px-chart-scale{display:flex;justify-content:space-between;font-size:.65rem;color:var(--muted);margin:0 99px 8px 0;border-bottom:1px solid var(--line);padding-bottom:4px;}
.px-chart-row{margin-top:13px;}
.px-row-label{display:block;font-size:.76rem;color:var(--muted);line-height:1.5;margin-bottom:5px;}
.px-chart-row.is-own .px-row-label{color:var(--text);font-weight:700;}
.px-measure{display:grid;grid-template-columns:minmax(0,1fr) 89px;gap:10px;align-items:center;min-height:23px;}
.px-track{height:10px;background:var(--soft);border-radius:2px;position:relative;}
.px-track::after{content:'';position:absolute;left:var(--zero);top:-3px;bottom:-3px;width:1px;background:var(--line);}
.px-bar{position:absolute;top:0;height:100%;background:var(--series-color);border-radius:2px;}
.px-value{font-variant-numeric:tabular-nums;font-size:.72rem;color:var(--muted);text-align:right;white-space:nowrap;}
.px-chart-row.is-own .px-value{color:var(--text);font-weight:600;}
.px-result-source{display:inline-block;color:var(--accent);font-size:.73rem;margin-top:15px;text-decoration:none;}
.px-result-source:hover{text-decoration:underline;}
.px-experiment .table-scroll{margin-top:18px;}
.px-takeaways{padding:26px 28px;background:var(--tint);border:1px solid var(--line);border-radius:17px;margin:32px 0;}
.px-takeaways h2{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);margin-bottom:17px;}
.px-takeaways ul{padding-left:20px;margin:0;}
.px-takeaways li{padding-left:6px;color:var(--muted);font-size:.92rem;line-height:1.8;}
.px-takeaways li+li{margin-top:12px;}
.px-takeaways li::marker{color:var(--accent);}
.px-settings>div{display:grid;grid-template-columns:150px 1fr;gap:15px;padding:10px 0;border-bottom:1px solid var(--line);}
.px-settings dt{color:var(--text);font-weight:600;}
.px-settings dd{margin:0;}
@media(max-width:800px){
 .story-steps{grid-template-columns:repeat(3,minmax(0,1fr));}
 .px-method-body.has-technical{grid-template-columns:1fr;gap:18px;}
 .px-contributions{grid-template-columns:1fr;gap:12px;}
 .px-contributions h2{padding:0;}
}
@media(max-width:600px){
 .px-panel{padding-top:24px;}
 .px-lead{font-size:1rem;}
 .paper-story{border-radius:13px;}
 .story-head{padding:15px 13px 12px;}
 .story-head .px-kicker{font-size:.65rem;letter-spacing:.07em;}
 .story-toggle{font-size:.7rem;min-width:126px;padding:10px;}
 .story-steps{padding:0 12px 13px;display:flex;gap:6px;overflow-x:auto;scrollbar-width:thin;}
 .story-steps button{flex:0 0 132px;font-size:.72rem;min-height:50px;}
 .story-viewport{padding:16px 9px 18px;}
 .story-viewport figcaption{min-height:127px;margin:12px 7px 0;}
 .story-viewport figcaption strong{font-size:.94rem;}
 .story-viewport figcaption span{font-size:.81rem;}
 .px-contributions li{font-size:.87rem;gap:12px;}
 .px-method-card,.px-result{padding:19px 16px;border-radius:13px;}
 .px-method-card h3{font-size:1.04rem;}
 .px-method-body{font-size:.87rem;}
 .px-technical{padding:15px;}
 .px-equation{font-size:1rem;}
 .px-result-heading h3{font-size:1.06rem;}
 .px-result-lead{font-size:.84rem;}
 .px-chart-grid.paired{grid-template-columns:1fr;gap:30px;}
 .px-takeaways{padding:22px 18px;}
 .px-takeaways li{font-size:.86rem;}
 .px-settings>div{grid-template-columns:1fr;gap:3px;}
}
@media(prefers-reduced-motion:reduce){
 .paper-story *{animation:none!important;transition:none!important;}
 .paper-story [data-revealed]{opacity:1;transform:none;}
}
.px-missing{border-top:1px dashed var(--line);height:1px;}
.story-expand{display:flex;align-items:center;gap:7px;margin:12px 0 0 auto;border:0;padding:8px;background:none;color:var(--muted);font-size:.72rem;min-height:36px;}
.story-expand:hover{color:var(--accent);}
.story-expand svg{width:15px;height:15px;}
.story-dialog{width:min(1000px,95vw);max-width:none;max-height:92vh;padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--text);}
.story-dialog::backdrop{background:#000a;backdrop-filter:blur(4px);}
.story-dialog>header{display:flex;align-items:center;justify-content:space-between;font-size:.85rem;padding-bottom:15px;gap:20px;}
.story-dialog button{border:1px solid var(--line);background:var(--soft);border-radius:8px;padding:8px 12px;font-size:.8rem;min-height:42px;}
.story-dialog-scroll{overflow:auto;max-height:65vh;padding:20px 5px;}
.story-dialog .story-art{width:100%;min-width:680px;max-height:none;}
.story-dialog [data-reveal]{opacity:1!important;transform:none!important;}
.story-dialog>p{font-size:.85rem;line-height:1.8;margin-top:12px;color:var(--muted);}
@media(max-width:600px){.story-dialog{padding:16px;}.story-dialog-scroll{max-height:60vh;}.story-dialog>p{font-size:.8rem;}}
@media print{.paper-story.is-enhanced [data-story-scene][hidden]{display:block!important;}.paper-story [data-revealed='false']{opacity:1!important;transform:none!important;}.story-head button,.story-steps,.story-expand,.story-progress{display:none!important;}}
.paper-page:is([data-project='ae-psl'],[data-project='efu'],[data-project='da-mldg']){--story-secondary:#0f766e;}
:root[data-theme='dark'] .paper-page:is([data-project='ae-psl'],[data-project='efu'],[data-project='da-mldg']){--story-secondary:#66d4c3;}
@media(prefers-color-scheme:dark){:root:not([data-theme='light']) .paper-page:is([data-project='ae-psl'],[data-project='efu'],[data-project='da-mldg']){--story-secondary:#66d4c3;}}
.story-dialog .story-dialog-hint{display:none;font-size:.73rem;margin:0;color:var(--muted);}
@media(max-width:600px){.story-dialog .story-dialog-hint{display:block;}}