/* Erika Scaletta, personal site. The slides translated into a web page:
   Instrument Serif for titles and the name, Poppins for everything else; the exact colours of the slides. */

:root{
  --bg:#EBF5FE;
  --night:#063050;
  --band:#2C65B0;
  --band-2:#2B59C3;
  --sky:#4F9FF5;
  --box:#D2E4F7;
  --ink:#121a22;
  --muted:#4a5a6a;
  --white:#ffffff;
  --lens:170px;
  --nav-h:64px;
  --ease:cubic-bezier(.2,.7,.2,1);
  /* the gradient of the name and of the navigation pills: the transition point moves while scrolling */
  --p:6%;
  --g-dark:#063050;
  --g-light:#4F9FF5;
  --ring:conic-gradient(from 0deg,#063050,#2B59C3,#4F9FF5,#A9DBF7,#4F9FF5,#2B59C3,#063050);
  --nav-bg:rgba(235,245,254,.9);
  --shadow:rgba(44,101,176,.28);
  --shadow-soft:rgba(44,101,176,.16);
  --bg-mid:#F3F9FE;
  --grad:linear-gradient(to right bottom,var(--g-dark) 0%,var(--p),var(--g-light) 92%,var(--g-light) 100%);
  --grad:linear-gradient(to right bottom in oklch,var(--g-dark) 0%,var(--p),var(--g-light) 92%,var(--g-light) 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);background:#fff}
body{margin:0;min-height:100vh;background:linear-gradient(180deg,var(--bg) 0%,var(--bg-mid) 60%,#FFFFFF 100%);color:var(--ink);font-family:"Poppins",system-ui,sans-serif;font-weight:400;font-size:16px;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:var(--band-2);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;transition:color .15s,text-decoration-thickness .15s}
a:hover{color:var(--night);text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--night);outline-offset:3px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
.small{font-size:14px;color:var(--muted)}
.skip{position:absolute;left:-999px;top:8px;background:var(--night);color:#fff;padding:8px 14px;font-weight:600;z-index:100;border-radius:999px}
.skip:focus{left:12px}

h1,h2,h3{font-family:"Instrument Serif",Georgia,serif;font-weight:400;letter-spacing:-.01em;margin:0}
h2{font-size:clamp(34px,4.2vw,46px);line-height:1.05}
h3{font-size:clamp(24px,2.6vw,30px);line-height:1.15;color:var(--night);margin:0 0 10px}
p{margin:0 0 12px}

/* ---- the pill of the slide titles ---- */
.pill{display:inline-flex;align-items:center;background:var(--sky);color:#fff;font-weight:600;font-size:14px;line-height:1;padding:10px 18px;border-radius:999px;text-decoration:none;border:0;font-family:inherit;cursor:pointer;transition:background .15s,transform .15s var(--ease),box-shadow .15s}
.pill:hover,.pill:focus-visible{background:var(--band);color:#fff;transform:translateY(-2px);box-shadow:0 6px 16px var(--shadow)}
.pill.is-on{background:var(--band-2)}
.pill-dark{background:var(--night)}
.pill-dark:hover,.pill-dark:focus-visible{background:var(--band-2)}

/* ---- the blue band of the slides: section headings ---- */
.band{position:relative;display:inline-block;color:#fff;padding:12px 36px 12px 0;margin:0 0 30px;z-index:0;
  /* redefined here so that var(--p) is the point set on this band, not the one of the name */
  --grad:linear-gradient(to right bottom,var(--g-dark) 0%,var(--p),var(--g-light) 92%,var(--g-light) 100%);
  --grad:linear-gradient(to right bottom in oklch,var(--g-dark) 0%,var(--p),var(--g-light) 92%,var(--g-light) 100%)}
.band::before{content:"";position:absolute;top:0;bottom:0;right:0;left:-100vw;background:var(--grad);z-index:-1}

/* ---- navigation ---- */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:80;background:var(--nav-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid rgba(6,48,80,.08)}
.nav-in{max-width:1120px;margin:0 auto;padding:0 28px;height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-family:"Instrument Serif",Georgia,serif;font-size:24px;color:var(--night);text-decoration:none}
.brand:hover{color:var(--band-2)}
.nav-links{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:8px}
.nav-links .pill{padding:9px 16px}
.nav-links .pill.current{background:var(--band-2)}
.lang{display:flex;gap:2px;background:rgba(6,48,80,.08);border-radius:999px;padding:3px;flex:none}
.lang button{font-family:inherit;font-weight:600;font-size:12px;letter-spacing:.04em;color:var(--night);background:transparent;border:0;border-radius:999px;padding:6px 10px;cursor:pointer;transition:background .15s,color .15s}
.lang button:hover{background:rgba(6,48,80,.1)}
.lang button[aria-pressed="true"]{background:var(--night);color:#fff}
.nav-toggle{display:none;width:44px;height:44px;border:0;background:transparent;border-radius:999px;position:relative;cursor:pointer}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--night);transition:transform .2s,top .2s}
.nav-toggle span:first-child{top:17px}.nav-toggle span:last-child{top:25px}
.nav-toggle[aria-expanded="true"] span:first-child{top:21px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{top:21px;transform:rotate(-45deg)}

/* ---- opening ---- */
.hero{min-height:100vh;display:flex;align-items:center;padding:calc(var(--nav-h) + 24px) 0 40px}
.hero-grid{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:center;width:100%}
/* the ring around the photo, like an Instagram story, in the blues of the site */
.photo{position:relative;margin:0;width:300px;height:300px;border-radius:50%;overflow:hidden;padding:6px;box-shadow:0 18px 40px rgba(6,48,80,.18);isolation:isolate}
/* the gradient lives on a larger layer under the photo and turns clockwise; the photo stays still */
.photo::before{content:"";position:absolute;left:-50%;top:-50%;width:200%;height:200%;background:var(--ring);z-index:-1;animation:ring-turn 4s linear infinite}
@keyframes ring-turn{to{transform:rotate(360deg)}}
.photo img{position:relative;width:100%;height:100%;object-fit:cover;object-position:35% 22%;display:block;border-radius:50%;border:4px solid var(--bg);background:var(--box)}
h1{font-size:clamp(54px,8vw,104px);line-height:.95;margin:0 0 18px}
.name{position:relative;display:block;font-family:"Instrument Serif",Georgia,serif;font-weight:400;letter-spacing:-.01em;height:1em;width:100%}
.name-svg{position:absolute;left:0;top:0;width:0;height:0;overflow:visible;font:inherit}
.name-svg text{font-family:"Instrument Serif",Georgia,serif;font-weight:400;letter-spacing:-.01em}
.name-fill{position:absolute;left:0;top:0;width:100%;height:100%;clip-path:url(#name-clip);background:var(--grad)}
.roles{list-style:none;margin:0 0 14px;padding:0;font-size:clamp(17px,1.6vw,20px);font-weight:600;color:var(--night);line-height:1.5}
.roles a{color:inherit}
.facts{list-style:none;margin:0 0 18px;padding:0;font-size:15px;color:var(--muted);display:grid;gap:4px}
.facts li{display:flex;align-items:flex-start;gap:8px}
.facts svg{width:16px;height:16px;flex:none;margin-top:4px;fill:var(--band-2)}
.lede{font-size:clamp(17px,1.5vw,19px);color:var(--ink);max-width:52ch;margin:0 0 22px}
.buttons{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}

/* ---- sections ---- */
.section{padding:48px 0 40px}
.intro{color:var(--muted);margin:-10px 0 28px}

/* about */
.about-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:48px;align-items:start}
.bio{font-size:clamp(17px,1.5vw,19px);line-height:1.7;margin:0}
.about-side h3{font-size:22px;margin-bottom:12px}
.tags{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.tags li{background:var(--box);color:var(--night);font-size:14px;font-weight:600;padding:7px 14px;border-radius:999px}
.personal{font-size:15px;color:var(--muted);margin:0}

/* research */
.line{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:28px 0}
.line + .line{border-top:1px solid rgba(6,48,80,.12)}
.line:nth-child(odd) .line-fig{order:-1}
.when{font-size:14px;font-weight:600;color:var(--band-2);margin:0 0 8px}
.line h3{font-size:clamp(32px,3.6vw,46px);margin-bottom:14px}
.line p{margin:0 0 14px}
.wip{font-size:14px;color:var(--muted)}
.papers{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:15px}
.papers a{display:inline-flex;align-items:center;gap:8px;color:var(--night)}
.papers a::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--sky);flex:none;transition:transform .15s var(--ease)}
.papers a:hover::before{transform:scale(1.4);background:var(--band-2)}
.caption{font-size:13px;color:var(--muted);margin:10px 0 0}

/* the lens: base layer + revealed layer, perfectly aligned */
.surface{position:relative;overflow:hidden;background:var(--box);border-radius:18px;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.surface > .layer{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:cover}
.surface > .reveal{clip-path:circle(0px at 50% 50%)}
.surface svg.layer{width:100%;height:100%}
.surface .ring{position:absolute;left:50%;top:50%;width:var(--lens);height:var(--lens);border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px rgba(6,48,80,.5),0 10px 30px rgba(6,48,80,.25);transform:translate(-50%,-50%);pointer-events:none;opacity:0;transition:opacity .15s}
.surface .ring .tag{position:absolute;left:50%;top:100%;transform:translate(-50%,10px);white-space:nowrap;font-size:12px;font-weight:600;color:#fff;background:var(--night);padding:5px 11px;border-radius:999px}
.surface.active .ring{opacity:1}
@media (hover:hover) and (pointer:fine){.surface{cursor:none}}
.surface.square{aspect-ratio:1/1}
.surface.wide-aerial{aspect-ratio:690/806}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.trio .surface{--lens:110px;border-radius:12px}
.surface.tall{aspect-ratio:4/5;max-height:560px}
.surface.wide{aspect-ratio:800/652}
.ov text{font-family:"Poppins",sans-serif}

/* publications and experience: the light blue boxes of the slides */
.cards{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.card{background:var(--box);border-radius:18px;transition:box-shadow .2s,transform .2s var(--ease)}
.card:hover{box-shadow:0 10px 28px var(--shadow-soft)}
.card.hide{display:none}
.card.target{box-shadow:0 0 0 3px var(--band-2)}
.card-head{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:start;padding:20px 22px;cursor:pointer;border-radius:18px}
.card-head.static{cursor:default}
.card-head:hover .plus{background:var(--band-2);color:#fff}
.card .meta{font-size:13px;font-weight:600;color:var(--band-2);margin:0 0 4px}
.card .title{font-weight:600;font-size:17px;line-height:1.4;color:var(--night);margin:0 0 4px}
.card .title a{color:var(--band-2);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.card .title a:hover{color:var(--night)}
.card .sub{font-size:14px;color:var(--muted);margin:0}
.card .authors{font-size:14px;color:var(--muted);margin:0 0 6px}
.card .authors .me{color:var(--night);font-weight:600;background:#fff;padding:0 5px;border-radius:4px}
.plus{width:30px;height:30px;border-radius:50%;border:0;padding:0;background:#fff;color:var(--night);display:grid;place-items:center;font-family:inherit;font-size:20px;line-height:1;cursor:pointer;transition:transform .25s var(--ease),background .15s,color .15s;flex:none;margin-top:2px}
.card.open .plus{transform:rotate(45deg);background:var(--night);color:#fff}
.card .body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease)}
.card.open .body{grid-template-rows:1fr}
.card .body > div{overflow:hidden}
.card .body-in{padding:0 22px 22px;font-size:15px}
.card .body-in p{margin:0 0 10px}
.card .row{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 12px}
.card .row .pill{font-size:13px;padding:8px 14px}
.btn{display:inline-flex;align-items:center;font-family:inherit;font-weight:600;font-size:13px;color:var(--night);background:#fff;border:2px solid var(--night);border-radius:999px;padding:7px 14px;cursor:pointer;transition:background .15s,color .15s,transform .15s var(--ease)}
.btn:hover,.btn:focus-visible{background:var(--night);color:#fff;transform:translateY(-2px)}
.btn.done{border-color:var(--band-2);background:var(--band-2);color:#fff}
.card pre{margin:8px 0 0;padding:14px;background:#fff;border-radius:12px;font-size:12px;line-height:1.5;overflow:auto;color:var(--ink)}
.card figure{margin:0 0 12px;border-radius:12px;overflow:hidden;max-width:420px}
.card figure img{display:block;width:100%;height:auto}
/* the featured publication, larger */
.card.featured .card-head{padding:26px 26px}
.card.featured .title{font-size:19px}
.card.featured .body-in{padding:0 26px 26px}
.card.featured .body-in .feat{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.card.featured .body-in .feat > *{min-width:0}
.card.featured figure{max-width:none}

/* experience */
.exp-section{margin:0 0 34px}
.exp-section h3{margin-bottom:14px}
.exp-section .cards{gap:10px}
.exp-section .card-head{padding:16px 20px}
.exp-section .card.static:hover{box-shadow:none}

/* contact */
#contact{padding-bottom:56px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-grid h3{font-size:22px;margin:0 0 8px}
.contact-grid h3 + p,.contact-grid .buttons{margin-bottom:22px}
.contact-grid p{margin:0 0 6px}

/* ---- the blue bar at the bottom of the slides: the footer ---- */
.bar{background:var(--band);color:#fff;text-align:center;font-size:14px;padding:14px 16px;line-height:1.5}

/* ---- responsive ---- */
@media (max-width:900px){
  .wrap,.nav-in{padding:0 16px}
  .nav-toggle{display:block}
  .nav-in{gap:10px}
  .lang{margin-left:auto}
  .nav-links{position:absolute;left:0;right:0;top:var(--nav-h);flex-direction:column;align-items:stretch;gap:6px;padding:12px 16px 16px;background:var(--nav-bg);border-bottom:1px solid rgba(6,48,80,.08);display:none}
  .nav-links.open{display:flex}
  .nav-links .pill{justify-content:center}
  .hero{min-height:auto;padding-top:calc(var(--nav-h) + 32px)}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .photo{width:200px;height:200px;padding:5px}
  .photo img{border-width:3px}
  .about-grid,.line,.contact-grid,.card.featured .body-in .feat{grid-template-columns:1fr;gap:24px}
  .line:nth-child(odd) .line-fig{order:0}
  .surface.tall{max-height:none}
  .band{padding-right:24px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}


/* ---- parallel version, for comparison: steel and coral everywhere ---- */
html.theme-coral{
  --bg:#FFF3EE;--bg-mid:#FFF8F4;--nav-bg:rgba(255,243,238,.92);
  --night:#2B4052;--band:#4E6D87;--band-2:#C25F54;--sky:#4E6D87;--box:#FFE1D6;
  --shadow:rgba(78,109,135,.28);--shadow-soft:rgba(78,109,135,.16);
  --g-dark:#4E6D87;--g-light:#D9776C;
  --ring:conic-gradient(from 0deg,#2B4052,#4E6D87,#C25F54,#F3B3A6,#C25F54,#4E6D87,#2B4052);
}
html.theme-coral .pill:hover,html.theme-coral .pill:focus-visible{background:var(--band-2)}
html.theme-coral .pill.is-on,html.theme-coral .nav-links .pill.current{background:var(--band-2)}
html.theme-coral .pill-dark{background:var(--night)}
html.theme-coral .pill-dark:hover,html.theme-coral .pill-dark:focus-visible{background:var(--band-2)}
html.theme-coral .papers a::before{background:var(--band-2)}
html.theme-coral .card .authors .me{background:#fff}
html.theme-coral .btn.done{border-color:var(--band-2);background:var(--band-2)}
html.theme-coral .surface{background:var(--box)}