/* ---------- Fonts ---------- */
@font-face{font-family:'DM Sans';src:url('assets/fonts/dm-sans-regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:'DM Sans';src:url('assets/fonts/dm-sans-medium.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:'DM Sans';src:url('assets/fonts/dm-sans-semibold.ttf') format('truetype');font-weight:600;font-display:swap}
@font-face{font-family:'DM Sans';src:url('assets/fonts/dm-sans-bold.ttf') format('truetype');font-weight:700;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url('assets/fonts/instrument-serif-regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url('assets/fonts/instrument-serif-italic.ttf') format('truetype');font-weight:400;font-style:italic;font-display:swap}

/* ---------- Tokens ---------- */
:root{
  --ink:#0f2620;
  --text:#3a4f48;
  --muted:#6b7f78;
  --line:#e1eae6;
  --line-strong:#c9d8d2;
  --bg:#ffffff;
  --tint:#f5f9f7;
  --accent:#008f80;
  --accent-ink:#00776b;
  --accent-soft:#e5f4f0;
  --series-1:#008f80;
  --series-2:#7d95a6;
  --series-3:#c3d3cc;
  --serif:'Instrument Serif',Georgia,'Times New Roman',serif;
  --sans:'DM Sans',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --radius:16px;
  --shadow:0 1px 2px rgba(15,38,32,.04),0 8px 28px rgba(15,38,32,.06);
  --shadow-lg:0 2px 6px rgba(15,38,32,.06),0 18px 48px rgba(15,38,32,.12);
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
h1,h2,h3,p,figure,dl,dd,ol{margin:0}
ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,video,svg{display:block;max-width:100%}
button,select{font:inherit;color:inherit}
button{cursor:pointer}
button,a,select{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:6px}
::selection{background:#bfe8df;color:var(--ink)}
.container{width:min(1160px,calc(100% - 64px));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-100px;z-index:100;background:#fff;padding:10px 16px;border-radius:8px;box-shadow:var(--shadow)}
.skip-link:focus{top:12px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:30;height:64px;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 20px rgba(15,38,32,.04)}
.nav-row{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.wordmark{font-family:var(--sans);font-weight:700;font-size:24px;line-height:1;color:var(--ink);letter-spacing:-.04em}
.wordmark:hover{color:var(--accent)}
nav{display:flex;gap:4px;font-size:14px;font-weight:500}
nav a{color:var(--muted);padding:7px 13px;border-radius:999px;transition:color .15s,background .15s}
nav a:hover{color:var(--ink);background:var(--tint)}
nav a.active{color:var(--accent-ink);background:var(--accent-soft)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:76px 0 8px;text-align:center;overflow:hidden;isolation:isolate}
.hero::before{content:'';position:absolute;inset:-12% -8% 0;z-index:-1;animation:aurora 26s ease-in-out infinite alternate;background:radial-gradient(60% 55% at 50% 0%,#dff3ec 0%,rgba(223,243,236,0) 70%),radial-gradient(40% 40% at 88% 18%,#eaf3fb 0%,rgba(234,243,251,0) 70%),radial-gradient(35% 35% at 10% 30%,#eef8f1 0%,rgba(238,248,241,0) 70%)}
.hero::after{content:'';position:absolute;inset:0;z-index:-1;background-image:radial-gradient(rgba(15,38,32,.09) 1px,transparent 1px);background-size:22px 22px;-webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 55%);mask-image:linear-gradient(180deg,#000 0%,transparent 55%)}
.hero-mark{font-family:var(--sans);font-weight:700;font-size:clamp(88px,11.5vw,156px);line-height:1;letter-spacing:-.055em;margin-right:.055em;background:linear-gradient(105deg,transparent 42%,rgba(98,226,196,.95) 50%,transparent 58%) 120% 0/260% 100% no-repeat,linear-gradient(180deg,#0f2620 0%,#0b5f53 100%);-webkit-background-clip:text;background-clip:text;color:transparent;padding-bottom:.06em}
.hero-title{font-family:var(--sans);font-weight:600;font-size:clamp(22px,2.5vw,31px);line-height:1.32;color:var(--ink);margin:18px auto 0;max-width:900px;letter-spacing:-.022em}
.hero-title .initial{color:var(--accent);font-weight:700}
.hero-authors{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 18px;max-width:980px;margin:34px auto 0;font-size:16px;line-height:1.6;color:var(--ink)}
.hero-author{white-space:nowrap}
.hero-author sup{font-size:10.5px;margin-left:1px;color:var(--accent-ink);font-weight:500}
.hero-affiliations{display:flex;flex-wrap:wrap;justify-content:center;gap:2px 24px;margin:16px auto 0;max-width:980px;font-size:14px;color:var(--muted);line-height:1.6}
.hero-affiliations sup,.hero-author-notes sup{color:var(--accent-ink);font-weight:500}
.hero-author-notes{margin-top:6px;font-size:13px;color:var(--muted)}
.hero-resources{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:30px}
.button{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px 0 16px;border-radius:999px;background:var(--ink);color:#fff;font-size:15px;font-weight:500;border:1px solid var(--ink);transition:background .18s,border-color .18s,transform .18s,box-shadow .18s;box-shadow:0 1px 2px rgba(15,38,32,.12)}
.button svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.button svg.filled{fill:currentColor;stroke:none}
.button-emoji{font-size:18px;line-height:1;font-family:'Apple Color Emoji','Segoe UI Emoji','Noto Color Emoji',sans-serif}
.button:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,143,128,.25)}
.button-ghost{background:rgba(255,255,255,.7);color:var(--ink);border-color:var(--line-strong)}
.button-ghost:hover{background:#fff;color:var(--accent-ink);border-color:var(--accent);box-shadow:0 6px 18px rgba(15,38,32,.08)}

/* Video reel */
.hero-reel{margin-top:56px}
.reel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.reel-item{position:relative;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;background:#1b2a26;box-shadow:var(--shadow-lg)}
.reel-item video{width:100%;height:100%;object-fit:cover}
.reel-item figcaption{position:absolute;inset:auto 0 0 0;display:flex;align-items:flex-end;justify-content:space-between;gap:10px;padding:36px 14px 12px;background:linear-gradient(0deg,rgba(6,20,16,.72),rgba(6,20,16,0));color:#fff;text-align:left}
.reel-item figcaption>span{font-size:16px;font-weight:600;letter-spacing:.01em}
.reel-button{border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.14);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:#fff;border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:500;transition:background .15s,color .15s}
.reel-button:hover{background:#fff;color:var(--ink)}
.reel-meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:13px;color:var(--muted)}
.hero-playback{border:1px solid var(--line-strong);background:#fff;border-radius:999px;padding:4px 12px 4px 10px;font-size:12.5px;font-weight:500;color:var(--text);display:inline-flex;align-items:center;gap:7px}
.hero-playback::before{content:'';width:8px;height:10px;border-left:3px solid currentColor;border-right:3px solid currentColor;box-sizing:border-box}
.hero-playback[aria-pressed="true"]::before{width:0;height:0;border-style:solid;border-width:5px 0 5px 8px;border-color:transparent transparent transparent currentColor}
.hero-playback:hover{border-color:var(--accent);color:var(--accent-ink)}

/* Key numbers */
.highlights{display:grid;grid-template-columns:repeat(3,1fr);margin:56px 0 12px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);text-align:left;overflow:hidden}
.stat{padding:26px 30px 28px}
.stat+.stat{border-left:1px solid var(--line)}
.stat dt{font-size:13.5px;font-weight:600;color:var(--muted)}
.stat strong{display:block;font-family:var(--serif);font-weight:400;font-size:60px;line-height:1;color:var(--accent);margin:12px 0 10px;letter-spacing:-.01em}
.stat strong small{font-size:.5em;margin-left:2px;color:var(--accent-ink)}
.stat span{display:block;font-size:14px;line-height:1.55;color:var(--text)}
.stat b{color:var(--accent-ink);font-weight:600}
.stat .nowrap{display:inline;white-space:nowrap;font-size:inherit;color:inherit}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section-tint{background:var(--tint);border-block:1px solid var(--line)}
.section-head{margin-bottom:40px}
.section-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink)}
.kicker::before{content:'';width:22px;height:2px;border-radius:2px;background:var(--accent)}
h2{font-family:var(--serif);font-weight:400;font-size:clamp(38px,4.4vw,54px);line-height:1.05;color:var(--ink);letter-spacing:-.01em;margin-top:12px}
h3{color:var(--ink)}
.lead{max-width:820px;margin-top:18px;font-size:18px;line-height:1.75;color:var(--text)}

/* Abstract */
.abstract-layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,8fr);gap:56px;margin-bottom:56px}
.abstract-layout .section-head{margin:0;position:sticky;top:110px;align-self:start}
.abstract-text{font-size:18px;line-height:1.85;color:var(--text)}
.abstract-text::first-letter{font-family:var(--serif);float:left;font-size:4.1em;line-height:.82;padding:6px 10px 0 0;color:var(--accent)}

/* Figures */
.figure-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.image-zoom{position:relative;display:block;width:100%;padding:0;border:0;background:transparent;cursor:zoom-in;border-radius:10px}
.image-zoom img{width:100%;height:auto;border-radius:8px}
.zoom-hint{position:absolute;right:10px;top:10px;padding:5px 11px;border-radius:999px;background:rgba(15,38,32,.82);color:#fff;font-size:12px;font-weight:500;opacity:0;transform:translateY(-4px);transition:opacity .2s,transform .2s;pointer-events:none}
.image-zoom:hover .zoom-hint,.image-zoom:focus-visible .zoom-hint{opacity:1;transform:none}

/* ---------- Method ---------- */
.control-cycle{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:10px 0;margin:28px 0 8px;font-size:14px;font-weight:500;color:var(--ink)}
.control-cycle li{display:inline-flex;align-items:center;gap:9px;padding:8px 16px 8px 8px;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:0 1px 2px rgba(15,38,32,.04)}
.control-cycle li span{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--accent-soft);color:var(--accent-ink);font-size:12px;font-weight:600}
.control-cycle li{position:relative}
.control-cycle li+li{margin-left:40px}
.control-cycle li+li::before{content:'';position:absolute;left:-34px;top:50%;width:28px;height:1.5px;background:var(--line-strong)}
.control-cycle li:last-child{margin-right:32px}
.control-cycle li:last-child::after{content:'↻';position:absolute;right:-27px;top:50%;transform:translateY(-54%);color:var(--accent);font-size:18px;font-weight:600}

.method-block{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:center;padding:64px 0;border-top:1px solid var(--line)}
.method-block:first-of-type{margin-top:56px}
.method-wide{grid-template-columns:1fr;gap:28px}
.method-wide .method-copy{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:56px;align-items:end}
.method-wide .method-copy .method-number,.method-wide .method-copy h3{grid-column:1;justify-self:start}
.method-wide .method-copy p{grid-column:2;grid-row:1/span 2;margin:0}
.method-reverse .method-copy{order:2}
.memory-block{grid-template-columns:1fr}
.memory-block .figure-card{width:100%;max-width:none;justify-self:stretch}
.memory-block .memory-legend{grid-column:1/-1}
.value-block .value-supervision{grid-column:1/-1}
.method-number{display:inline-grid;place-items:center;min-width:40px;height:26px;padding:0 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent-ink);font-size:12.5px;font-weight:600;letter-spacing:.06em}
.method-copy h3{font-family:var(--sans);font-size:26px;line-height:1.25;font-weight:600;letter-spacing:-.015em;margin-top:16px}
.method-copy p{font-size:16px;line-height:1.8;color:var(--text);margin-top:14px}
.memory-legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:20px;font-size:13px;color:var(--text)}
.memory-legend span{display:inline-flex;align-items:center;gap:8px}
.memory-legend i,.chart-legend i{display:block;width:11px;height:11px;border-radius:3px}
.value-block{padding-bottom:0}
.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.value-selection{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;padding:30px 34px 24px}
.vs-stat{display:flex;flex-direction:column;gap:8px;transition:opacity .45s}
.vs-stat strong{font-family:var(--serif);font-weight:400;font-size:68px;line-height:.9;color:var(--accent)}
.vs-stat span{font-size:14px;color:var(--text)}
.value-selection .selection-arrow{font-size:26px;color:var(--line-strong)}

/* ---------- Real-world charts ---------- */
.chart-legend{display:flex;gap:4px;font-size:14px;font-weight:500;color:var(--text);padding-bottom:2px}
.chart-legend .s0,.c-bar.s0{background:var(--series-1);fill:var(--series-1)}
.chart-legend .s1,.c-bar.s1{background:var(--series-2);fill:var(--series-2)}
.chart-legend .s2,.c-bar.s2{background:var(--series-3);fill:var(--series-3)}
.real-charts{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.chart-card{min-width:0;padding:24px 20px 12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.chart-card h3{font-size:15px;font-weight:600;padding-left:8px;margin-bottom:10px}
.chart-card svg{width:100%;height:auto;font-family:var(--sans);overflow:visible}
.c-grid{stroke:#e8efec;stroke-dasharray:3 4}
.c-axis{stroke:var(--line-strong)}
.c-tick{fill:#8a9b95;font-size:12px}
.c-band{fill:#f3f8f6}
.c-val{fill:var(--muted);font-size:12px;font-weight:500}
.c-val.s0{fill:var(--accent-ink);font-weight:700;font-size:13px}
.c-cat{fill:var(--ink);font-size:13.5px;font-weight:500}
.c-cat-avg{font-weight:700}

/* ---------- Results table ---------- */
.table-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:15px;font-variant-numeric:tabular-nums;text-align:right}
th,td{padding:14px 28px;white-space:nowrap;border-bottom:1px solid #edf2ef}
th:first-child{text-align:left}
thead th{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:#fafcfb;border-bottom:1px solid var(--line)}
tbody th{font-weight:500;color:var(--ink)}
tbody td{color:var(--text)}
tbody tr:last-child>*{border-bottom:0}
tbody tr:hover>*{background:#fafcfb}
tr.group-start>*{border-top:1px solid var(--line-strong)}
tr.law>*{background:var(--accent-soft)}
tr.law:hover>*{background:#dcf0ea}
tr.law th{color:var(--accent-ink);font-weight:700;box-shadow:inset 3px 0 0 var(--accent)}
tr.law td{color:var(--ink);font-weight:600}
td.best{color:var(--accent-ink)!important;font-weight:700}
.gain{display:inline-block;margin-right:10px;padding:1px 7px;border-radius:999px;background:#fff;border:1px solid #bfe3d9;color:var(--accent-ink);font-size:11.5px;font-weight:600;vertical-align:1px}
.table-note{margin-top:14px;font-size:13px;color:var(--muted)}
.table-note b{color:var(--ink)}

/* ---------- BibTeX ---------- */
.bibtex-card{position:relative;background:#0f2620;border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden}
.bibtex-card pre{margin:0;padding:28px 32px;overflow-x:auto;font-family:var(--mono);font-size:13.5px;line-height:1.75;color:#d7ece5}
.copy-bibtex{position:absolute;top:14px;right:14px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#e9f6f1;border-radius:999px;padding:5px 14px;font-size:12.5px;font-weight:500;transition:background .15s}
.copy-bibtex:hover{background:rgba(255,255,255,.18)}
.copy-bibtex.copied{background:var(--accent);border-color:var(--accent);color:#fff}

/* ---------- Footer ---------- */
.site-footer{background:#0b1f1a;color:#9fb7af;padding:44px 0;font-size:14px}
.footer-row{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-footer .wordmark{color:#fff;font-size:26px}
.site-footer p{margin-top:6px}
.site-footer a:hover{color:#fff}

/* ---------- Dialog ---------- */
.media-dialog{width:min(1160px,94vw);max-height:92vh;padding:22px;border:0;border-radius:20px;color:var(--ink);box-shadow:0 30px 120px rgba(0,0,0,.45)}
.media-dialog::backdrop{background:rgba(6,18,15,.78);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.dialog-top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px}
.dialog-top h2{font-family:var(--sans);font-size:18px;font-weight:600;margin:0;letter-spacing:0}
.dialog-close{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 14px;font-size:13px;font-weight:500}
.dialog-close:hover{background:var(--accent-soft);border-color:#bfe3d9;color:var(--accent-ink)}
#dialog-content img,#dialog-content video{width:100%;max-height:72vh;object-fit:contain;border-radius:10px;background:#f6f8f7}
#dialog-content video{background:#000}
#dialog-caption{font-size:13px;color:var(--muted);margin-top:12px}
#dialog-caption[hidden]{display:none}
.full-video-controls{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-top:14px;font-size:13px}
.full-video-controls select{margin-left:10px;padding:4px 8px;border:1px solid var(--line-strong);border-radius:8px;background:#fff}
.text-link{color:var(--accent-ink);font-weight:500}
.text-link:hover{text-decoration:underline}
.dialog-open{overflow:hidden}
.media-status{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:100;display:none;padding:12px 20px;border-radius:999px;background:var(--ink);color:#fff;font-size:13px;box-shadow:var(--shadow-lg)}
.media-status.visible{display:block}

/* ---------- Motion & interaction ---------- */
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes aurora{0%{transform:translate3d(-2%,-1%,0) scale(1)}50%{transform:translate3d(2%,2%,0) scale(1.06)}100%{transform:translate3d(-1%,3%,0) scale(1.02)}}
@keyframes sheen{0%{background-position:120% 0,0 0}28%,100%{background-position:-20% 0,0 0}}
@keyframes loop-spin{from{transform:translateY(-54%) rotate(0)}to{transform:translateY(-54%) rotate(360deg)}}
@keyframes dash{to{background-position:11px 0}}
@keyframes pop{0%{transform:scale(.86)}60%{transform:scale(1.06)}100%{transform:scale(1)}}

/* Hero entrance: fill-mode backwards so hover transforms still apply afterwards. */
.hero-mark{animation:rise .9s cubic-bezier(.2,.7,.2,1) backwards,sheen 9s ease-in-out 1.2s infinite}
.hero-title,.hero-authors,.hero-affiliations,.hero-author-notes,.hero-resources,.reel-item,.reel-meta{animation:rise .9s cubic-bezier(.2,.7,.2,1) backwards}
.hero-title{animation-delay:.08s}
.hero-authors{animation-delay:.16s}
.hero-affiliations,.hero-author-notes{animation-delay:.22s}
.hero-resources{animation-delay:.28s}
.reel-item:nth-child(1){animation-delay:.36s}
.reel-item:nth-child(2){animation-delay:.44s}
.reel-item:nth-child(3){animation-delay:.52s}
.reel-meta{animation-delay:.6s}

/* Reel cards */
.reel-item{transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s}
.reel-item video{transition:transform 1s cubic-bezier(.2,.8,.2,1)}
.reel-item:hover{transform:translateY(-5px);box-shadow:0 4px 10px rgba(15,38,32,.08),0 26px 60px rgba(15,38,32,.2)}
.reel-item:hover video{transform:scale(1.045)}
.reel-progress{position:absolute;left:0;right:0;bottom:0;z-index:2;height:3px;background:rgba(255,255,255,.16)}
.reel-progress i{display:block;height:100%;background:linear-gradient(90deg,#5fd6bb,#b7f0e1);transform:scaleX(0);transform-origin:0 50%}

/* Reading progress */
.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,var(--accent),#47cfb1);transform:scaleX(0);transform-origin:0 50%;pointer-events:none}

/* Scroll reveal (only hidden when JS is running) */
.js [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .8s cubic-bezier(.2,.7,.2,1) var(--d,0s),transform .8s cubic-bezier(.2,.7,.2,1) var(--d,0s),box-shadow .3s,border-color .3s}
.js [data-reveal].in{opacity:1;transform:none}
.figure-card:hover{box-shadow:var(--shadow-lg);border-color:var(--line-strong)}
.image-zoom img{transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.image-zoom:hover img{transform:scale(1.012)}

/* Control loop: the active step travels around the cycle */
.control-cycle li{transition:background .35s,color .35s,border-color .35s,box-shadow .35s,transform .35s}
.control-cycle li span{transition:background .35s,color .35s}
.control-cycle li+li::before{background:linear-gradient(90deg,var(--accent) 0 50%,var(--line-strong) 50% 100%);background-size:200% 100%;background-position:100% 0;transition:background-position .55s cubic-bezier(.4,0,.2,1)}
.control-cycle li.active::before,.control-cycle li.done::before{background-position:0 0}
.control-cycle li.active{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(0,143,128,.28);transform:translateY(-2px)}
.control-cycle li.active span{background:#fff;color:var(--accent-ink)}
.control-cycle li.done{border-color:#bfe3d9}
.control-cycle li{cursor:default}
.control-cycle.wrap li:last-child::after{animation:loop-spin .9s cubic-bezier(.4,0,.2,1)}

/* Value learning: 32 candidates -> scored -> top 8 -> fused */
.value-viz{display:none}
.js .value-viz{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 40px 58px;align-items:center;gap:14px;padding:22px 34px 28px;border-top:1px solid var(--line);background:linear-gradient(180deg,#fafcfb,#f3f8f6)}
.js .value-card[data-phase] .vs-stat{opacity:.35}
.js .value-card[data-phase="propose"] .vs-propose,.js .value-card[data-phase="score"] .vs-propose,.js .value-card[data-phase="select"] .vs-fuse,.js .value-card[data-phase="fuse"] .vs-fuse{opacity:1}
.chunk-grid{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px}
.chunk{position:relative;display:block;aspect-ratio:3/4;border-radius:6px;background:#fff;border:1px solid #d9e5e0;overflow:hidden;opacity:0;transform:scale(.4);transition:opacity .35s,transform .5s cubic-bezier(.3,1.5,.5,1),background .35s,border-color .35s;transition-delay:calc(var(--k)*14ms)}
.chunk b{position:absolute;left:3px;right:3px;bottom:3px;height:calc(var(--v,.5)*(100% - 6px));border-radius:3px;background:#bccfc7;transform:scaleY(0);transform-origin:50% 100%;transition:transform .65s cubic-bezier(.2,.8,.2,1),background .35s;transition-delay:calc(var(--k)*14ms)}
.value-card[data-phase] .chunk{opacity:1;transform:none}
.value-card[data-phase="score"] .chunk b,.value-card[data-phase="select"] .chunk b,.value-card[data-phase="fuse"] .chunk b{transform:none}
.value-card[data-phase="select"] .chunk:not(.top),.value-card[data-phase="fuse"] .chunk:not(.top){opacity:.22}
.value-card[data-phase="select"] .chunk.top,.value-card[data-phase="fuse"] .chunk.top{background:var(--accent-soft);border-color:var(--accent)}
.value-card[data-phase="fuse"] .chunk.top{opacity:.4}
.value-card[data-phase="select"] .chunk.top b,.value-card[data-phase="fuse"] .chunk.top b{background:var(--accent)}
.value-card .value-viz .chunk.fly{position:absolute;z-index:3;margin:0;opacity:1;transform:none;background:var(--accent-soft);border-color:var(--accent);transition:transform .8s cubic-bezier(.55,0,.25,1),opacity .8s ease-in}
.value-card .value-viz .chunk.fly b{transform:none;background:var(--accent);transition:none}
.fuse-link{position:relative;height:2px;background:repeating-linear-gradient(90deg,var(--line-strong) 0 6px,transparent 6px 11px)}
.fuse-link::after{content:'';position:absolute;right:-2px;top:50%;width:7px;height:7px;border-top:2px solid var(--line-strong);border-right:2px solid var(--line-strong);transform:translateY(-50%) rotate(45deg)}
.value-card[data-phase="fuse"] .fuse-link{background:repeating-linear-gradient(90deg,var(--accent) 0 6px,transparent 6px 11px);animation:dash .5s linear infinite}
.value-card[data-phase="fuse"] .fuse-link::after{border-color:var(--accent)}
.fused-chunk{display:flex;flex-direction:column;align-items:center;gap:7px;font-size:11.5px;font-weight:600;color:var(--muted);transition:color .3s}
.fused-chunk i{position:relative;display:block;width:100%;aspect-ratio:3/4;border-radius:9px;border:1.5px dashed var(--line-strong);background:#fff;overflow:hidden;transition:border-color .3s,box-shadow .3s}
.fused-chunk b{position:absolute;left:5px;right:5px;bottom:5px;height:calc(var(--v,.8)*(100% - 10px));border-radius:5px;background:var(--accent);transform:scaleY(0);transform-origin:50% 100%;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.value-card.fused .fused-chunk{color:var(--accent-ink)}
.value-card.fused .fused-chunk i{border-style:solid;border-color:var(--accent);box-shadow:0 0 0 5px rgba(0,143,128,.12);animation:pop .5s cubic-bezier(.3,1.4,.5,1)}
.value-card.fused .fused-chunk b{transform:none}

/* Charts: bars grow in, series focus from legend or hover */
.js .chart-card .c-bar{transform:scaleY(0);transform-box:fill-box;transform-origin:50% 100%;transition:transform .9s cubic-bezier(.2,.8,.2,1) calc(var(--i)*40ms),opacity .25s}
.js .chart-card.in .c-bar{transform:none}
.js .chart-card .c-val{opacity:0;transition:opacity .45s calc(var(--i)*40ms + .55s),fill-opacity .25s}
.js .chart-card.in .c-val{opacity:1}
.legend-item{display:inline-flex;align-items:center;gap:8px;padding:6px 12px 6px 10px;border:1px solid transparent;border-radius:999px;background:none;font-size:inherit;font-weight:500;color:var(--text);transition:background .2s,border-color .2s,opacity .2s}
.legend-item:hover,.legend-item[aria-pressed="true"]{background:#fff;border-color:var(--line);box-shadow:0 1px 2px rgba(15,38,32,.05)}
.legend-item[aria-pressed="true"]{border-color:var(--accent)}
[data-focus="0"] .c-bar:not(.s0),[data-focus="1"] .c-bar:not(.s1),[data-focus="2"] .c-bar:not(.s2){opacity:.16}
[data-focus="0"] .c-val:not(.s0),[data-focus="1"] .c-val:not(.s1),[data-focus="2"] .c-val:not(.s2){fill-opacity:.18}
[data-focus="0"] .legend-item:not([data-series="0"]),[data-focus="1"] .legend-item:not([data-series="1"]),[data-focus="2"] .legend-item:not([data-series="2"]){opacity:.45}

/* Sortable table */
.sort-button{display:inline-flex;align-items:center;gap:6px;padding:0;border:0;background:none;font:inherit;letter-spacing:inherit;text-transform:inherit;color:inherit;cursor:pointer}
.sort-button:hover{color:var(--ink)}
.sort-icon{display:inline-block;width:10px;text-align:center;opacity:.45}
.sort-icon::before{content:'↕'}
th[aria-sort="descending"] .sort-button,th[aria-sort="ascending"] .sort-button{color:var(--accent-ink)}
th[aria-sort="descending"] .sort-icon,th[aria-sort="ascending"] .sort-icon{opacity:1}
th[aria-sort="descending"] .sort-icon::before{content:'↓'}
th[aria-sort="ascending"] .sort-icon::before{content:'↑'}
#results tbody tr{transition:transform .55s cubic-bezier(.2,.8,.2,1)}
table.sorted tr.group-start>*{border-top:0}
table[data-sort-col="1"] tbody tr:not(.law) td:nth-child(2),table[data-sort-col="2"] tbody tr:not(.law) td:nth-child(3),table[data-sort-col="3"] tbody tr:not(.law) td:nth-child(4){background:#f6faf8;color:var(--ink)}

/* Zoomable figures in the dialog */
.dialog-hint{margin-left:auto;font-size:12.5px;color:var(--muted)}
.dialog-hint[hidden]{display:none}
.zoom-stage{position:relative;overflow:hidden;border-radius:10px;background:#f6f8f7;cursor:zoom-in;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.zoom-stage.zoomed{cursor:grab;touch-action:none}
.zoom-stage.dragging{cursor:grabbing}
#dialog-content .zoom-stage img{transform-origin:0 0;transition:transform .35s cubic-bezier(.2,.8,.2,1);will-change:transform;border-radius:0;-webkit-user-drag:none}
.zoom-stage.dragging img,.zoom-stage.wheeling img{transition:none!important}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .method-block,.memory-block{grid-template-columns:1fr;gap:28px}
  .method-wide .method-copy{display:block}
  .method-wide .method-copy p{margin-top:14px}
  .method-reverse .method-copy{order:0}
  .memory-block .figure-card{justify-self:stretch;max-width:none}
  .real-charts{grid-template-columns:1fr}
  .abstract-layout{grid-template-columns:1fr;gap:0}
  .abstract-layout .section-head{position:static;margin-bottom:28px}
}
@media (max-width:760px){
  .container{width:calc(100% - 36px)}
  .site-header{height:56px}
  .nav-row{gap:12px}
  .wordmark{font-size:21px}
  nav{gap:0;font-size:13px;overflow-x:auto;scrollbar-width:none;margin-right:-8px}
  nav::-webkit-scrollbar{display:none}
  nav a{padding:6px 9px;white-space:nowrap}
  .hero{padding-top:48px}
  .hero-title br{display:none}
  .hero-authors{gap:2px 12px;font-size:14px;margin-top:24px}
  .hero-affiliations{font-size:12.5px;flex-direction:column}
  .hero-author-notes{font-size:12px}
  .hero-resources{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;max-width:320px;margin:24px auto 0}
  .button{height:42px;justify-content:center;padding:0 14px;font-size:14px}
  .hero-reel{margin-top:40px;width:100%}
  .reel{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;padding:0 18px 6px;scroll-padding:0 18px;scrollbar-width:none}
  .reel::-webkit-scrollbar{display:none}
  .reel-item{flex:0 0 84%;scroll-snap-align:start;border-radius:14px}
  .reel-meta{padding:0 18px}
  .highlights{grid-template-columns:1fr;margin:40px 0 8px}
  .stat{display:grid;grid-template-columns:118px minmax(0,1fr);column-gap:14px;align-items:center;padding:18px 20px}
  .stat+.stat{border-left:0;border-top:1px solid var(--line)}
  .stat dd{display:contents}
  .stat dt{grid-column:2;grid-row:1;font-size:12.5px}
  .stat strong{grid-column:1;grid-row:1/span 2;font-size:44px;margin:0}
  .stat span{grid-column:2;grid-row:2;font-size:13px;margin-top:2px}
  .section{padding:64px 0}
  .section-head{margin-bottom:28px}
  .lead,.abstract-text{font-size:16px}
  .abstract-text{line-height:1.8}
  .abstract-layout{margin-bottom:32px}
  .figure-card{padding:8px;border-radius:12px}
  .control-cycle{justify-content:flex-start;gap:8px;font-size:13px}
  .control-cycle li+li{margin-left:0}
  .control-cycle li+li::before,.control-cycle li:last-child::after{display:none}
  .control-cycle li:last-child{margin-right:0}
  .method-block{padding:44px 0}
  .method-block:first-of-type{margin-top:40px}
  .method-copy h3{font-size:22px}
  .method-copy p{font-size:15px}
  .value-selection{padding:22px 20px 18px;gap:14px}
  .vs-stat strong{font-size:52px}
  .js .value-viz{grid-template-columns:minmax(0,1fr) 22px 42px;gap:10px;padding:16px 20px 20px}
  .chunk-grid{gap:4px}
  .chunk{border-radius:4px}
  .chart-legend{font-size:13px;gap:2px;margin-left:-10px}
  .chart-card{padding:18px 8px 6px}
  th,td{padding:11px 6px;font-size:12.5px}
  th:first-child{padding-left:12px}
  tbody th{white-space:normal;min-width:96px}
  th:last-child,td:last-child{padding-right:12px}
  thead th{white-space:normal;font-size:10.5px;letter-spacing:.05em;vertical-align:bottom}
  .gain{display:block;width:max-content;margin:0 0 3px auto;font-size:10.5px}
  .bibtex-card pre{padding:52px 20px 22px;font-size:12px}
  .media-dialog{padding:14px;border-radius:14px}
}
@media (max-width:480px){
  nav a[href="#abstract"],nav a[href="#bibtex"]{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .js [data-reveal]{opacity:1;transform:none}
  .js .chart-card .c-bar{transform:none}
  .js .chart-card .c-val{opacity:1}
}