:root{
  --v1:#7c3aed;   /* violet */
  --v2:#d946ef;   /* magenta */
  --v3:#4f46e5;   /* indigo */
  --v4:#6453a1;   /* muted violet-indigo */
  --bg:#0a0713;
  --bg2:#120a24;
  --panel:rgba(255,255,255,.04);
  --panel-brd:rgba(168,120,255,.16);
  --txt:#ece9f5;
  --muted:#a99fc4;
  --accent:#d946ef;
  --radius:18px;
  --maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--txt);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.2;font-weight:600;letter-spacing:-.5px}
a{color:inherit;text-decoration:none}

/* language visibility (ES / EN / DE / ZH) */
html[data-lang="en"] .lang-es,html[data-lang="en"] .lang-de,html[data-lang="en"] .lang-zh{display:none}
html[data-lang="es"] .lang-en,html[data-lang="es"] .lang-de,html[data-lang="es"] .lang-zh{display:none}
html[data-lang="de"] .lang-en,html[data-lang="de"] .lang-es,html[data-lang="de"] .lang-zh{display:none}
html[data-lang="zh"] .lang-en,html[data-lang="zh"] .lang-es,html[data-lang="zh"] .lang-de{display:none}

/* ---- animated energy background ---- */
/* height:100lvh = alto del viewport MÁS GRANDE (con la barra de URL móvil oculta).
   Con 100% el elemento cambiaba de alto cada vez que la barra aparecía o se ocultaba
   al hacer scroll, y redimensionar un position:fixed a media pasada se ve como un
   salto discreto. Con 100lvh la caja no se mueve nunca; sobra por abajo y no se nota. */
#energy{position:fixed;inset:0 auto auto 0;z-index:-2;width:100%;height:100%;height:100lvh;display:block;pointer-events:none;transform:translateZ(0);backface-visibility:hidden;will-change:transform}
.bg-glow{
  position:fixed;inset:0;z-index:-3;
  background:
    radial-gradient(closest-side at 15% 20%, rgba(124,58,237,.35), transparent 70%),
    radial-gradient(closest-side at 85% 15%, rgba(217,70,239,.30), transparent 70%),
    radial-gradient(closest-side at 70% 85%, rgba(79,70,229,.35), transparent 70%),
    radial-gradient(closest-side at 30% 60%, rgba(100,83,161,.32), transparent 70%),
    linear-gradient(160deg,var(--bg),var(--bg2));
  background-size:200% 200%,200% 200%,200% 200%,200% 200%,100% 100%;
  animation:flow 22s ease-in-out infinite;
}
@keyframes flow{
  0%{background-position:0% 50%,100% 50%,50% 100%,20% 30%,0 0}
  50%{background-position:100% 50%,0% 50%,50% 0%,80% 70%,0 0}
  100%{background-position:0% 50%,100% 50%,50% 100%,20% 30%,0 0}
}

/* ---- nav ---- */
nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px clamp(16px,4vw,40px);
  backdrop-filter:blur(14px);
  background:rgba(10,7,19,.55);
  border-bottom:1px solid var(--panel-brd);
}
.brand{font-family:Georgia,serif;font-weight:700;font-size:1.15rem;
  background:linear-gradient(90deg,var(--v1),var(--v2),var(--v3));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.nav-links a{position:relative;font-size:.9rem;font-weight:500;letter-spacing:.2px;color:var(--muted);padding:4px 3px;transition:color .25s ease, transform .12s ease, text-shadow .25s ease}
.nav-links a::after{content:"";position:absolute;left:2px;right:2px;bottom:-3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--v1),var(--v2),var(--v3));transform:scaleX(0);transform-origin:left center;transition:transform .32s cubic-bezier(.65,0,.35,1)}
.nav-links a:hover{color:#fff;text-shadow:0 0 18px rgba(217,70,239,.75), 0 0 8px rgba(124,58,237,.55), 0 0 2px rgba(255,255,255,.5);transform:translateY(-1px)}
html[data-theme="light"] .nav-links a:hover{color:var(--v1);text-shadow:0 0 16px rgba(217,70,239,.45)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a:active{transform:scale(.9)}
.nav-links a.tap::after{animation:navpulse .5s ease-out}
.nav-links a.tap{animation:navtext .5s ease-out}
@keyframes navpulse{
  0%{transform:scaleX(.15);filter:drop-shadow(0 0 0 rgba(217,70,239,0))}
  45%{transform:scaleX(1);filter:drop-shadow(0 0 9px rgba(217,70,239,.9))}
  100%{transform:scaleX(1);filter:drop-shadow(0 0 0 rgba(217,70,239,0))}
}
@keyframes navtext{
  0%{text-shadow:0 0 0 rgba(217,70,239,0)}
  45%{text-shadow:0 0 20px rgba(217,70,239,.95), 0 0 9px rgba(124,58,237,.7)}
  100%{text-shadow:0 0 0 rgba(217,70,239,0)}
}
/* touch/active state (works on phones, no hover needed) */
.nav-links a:active{color:#fff;text-shadow:0 0 18px rgba(217,70,239,.7),0 0 8px rgba(124,58,237,.5)}
.nav-links a:active::after,.nav-links a.tap::after{transform:scaleX(1)}
html[data-theme="light"] .nav-links a:active{color:var(--v1)}
/* in the mobile dropdown panel: give each link a clear tappable highlight */
@media(max-width:760px){
  .nav-links a{padding:9px 12px;border-radius:11px}
  .nav-links a::after{left:12px;right:12px;bottom:5px}
  .nav-links a:active,.nav-links a.tap{background:linear-gradient(90deg,rgba(124,58,237,.22),rgba(217,70,239,.16));color:#fff}
  html[data-theme="light"] .nav-links a:active,html[data-theme="light"] .nav-links a.tap{background:linear-gradient(90deg,rgba(124,58,237,.14),rgba(217,70,239,.12));color:var(--v1)}
}
.lang-wrap{position:relative;display:inline-flex;align-items:center}
.lang-wrap::after{content:"▾";position:absolute;right:12px;pointer-events:none;color:var(--accent);font-size:.7rem}
.lang-select{
  border:1px solid var(--accent);border-radius:999px;
  background:linear-gradient(100deg,rgba(124,58,237,.18),rgba(217,70,239,.18));
  color:var(--txt);cursor:pointer;
  padding:6px 28px 6px 14px;font-size:.8rem;font-weight:700;letter-spacing:.5px;transition:.2s;
  font-family:inherit;-webkit-appearance:none;appearance:none
}
.lang-select:hover{filter:brightness(1.2);box-shadow:0 0 0 3px rgba(217,70,239,.18)}
.lang-select option{background:var(--bg2);color:var(--txt)}
.nav-burger{display:none;background:none;border:none;color:var(--txt);font-size:1.5rem;cursor:pointer}

/* ---- layout ---- */
section{max-width:var(--maxw);margin:0 auto;padding:clamp(56px,9vw,110px) clamp(18px,4vw,32px)}
.eyebrow{
  text-transform:uppercase;letter-spacing:3px;font-size:.72rem;font-weight:700;
  color:var(--accent);margin-bottom:14px;display:block
}
.section-title{font-size:clamp(1.7rem,4vw,2.5rem);margin-bottom:8px}
.section-lead{color:var(--muted);max-width:60ch;margin-bottom:36px}

/* ---- hero ---- */
.hero{min-height:88vh;display:flex;align-items:center}
.hero-inner{display:grid;grid-template-columns:1.25fr .85fr;gap:clamp(28px,5vw,56px);align-items:center;width:100%}
.hero-text{display:flex;flex-direction:column;gap:24px}
.hero-photo{position:relative;justify-self:center;width:min(340px,74vw);aspect-ratio:1/1}
.hero-photo-frame{position:absolute;inset:0;overflow:hidden;border:1px solid var(--panel-brd);border-radius:26px;
  box-shadow:0 30px 80px -30px rgba(217,70,239,.6)}
.hero-photo .pf{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 25%;
  border-radius:25px;display:block;
  opacity:0;transition:opacity 1.2s ease}
.hero-photo .pf.pf-zoom{transform:scale(1.25);transform-origin:center 30%}
.hero-photo .pf.active{opacity:1}
.hero-photo::after{content:"";position:absolute;inset:-16px;border-radius:34px;z-index:-1;
  background:linear-gradient(135deg,var(--v1),var(--v2),var(--v3));filter:blur(38px);opacity:.5}
@media(max-width:820px){
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .hero-photo{order:-1;width:min(210px,55vw)}
}
/* ---- talk photos ---- */
.talk-photos{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:34px}
.talk-photos figure{margin:0;border-radius:16px;overflow:hidden;border:1px solid var(--panel-brd);background:var(--panel);transition:.25s}
.talk-photos figure:hover{border-color:var(--accent);transform:translateY(-3px)}
.talk-photos img{width:100%;height:250px;object-fit:cover;display:block}
.talk-photos figcaption{font-size:.82rem;color:var(--muted);padding:11px 15px}
@media(max-width:640px){.talk-photos{grid-template-columns:1fr}.talk-photos img{height:220px}}
.hero h1{font-size:clamp(2.4rem,7vw,4.4rem);
  background:linear-gradient(100deg,#fff 20%,var(--v2) 55%,var(--v3) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-role{font-size:clamp(1rem,2.5vw,1.25rem);color:var(--accent);font-weight:600}
.hero-sub{font-size:clamp(1.05rem,2.5vw,1.35rem);color:var(--muted);max-width:62ch}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.tag{font-size:.82rem;padding:7px 14px;border:1px solid var(--panel-brd);border-radius:999px;color:var(--muted);background:var(--panel);transition:color .3s ease, border-color .3s ease, background .3s ease}
.tag:hover{color:var(--txt);border-color:rgba(168,120,255,.32);background:rgba(168,120,255,.06)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px}
.btn{
  padding:12px 24px;border-radius:999px;font-weight:600;font-size:.95rem;cursor:pointer;transition:.2s;
  border:1px solid var(--panel-brd);display:inline-flex;align-items:center;gap:8px
}
.btn-primary{background:linear-gradient(100deg,var(--v1),var(--v2));border:none;color:#fff}
.btn-primary:hover{filter:brightness(1.12);transform:translateY(-2px)}
.btn-ghost{color:var(--txt)}
.btn-ghost:hover{border-color:var(--accent);color:#fff;transform:translateY(-2px);background:linear-gradient(100deg,rgba(124,58,237,.12),rgba(217,70,239,.08));box-shadow:0 8px 22px -12px rgba(217,70,239,.5)}
html[data-theme="light"] .btn-ghost:hover{color:var(--v1)}
.btn:active{transform:scale(.95)}
.btn.pulse{animation:btnpulse .55s ease-out}
@keyframes btnpulse{
  0%{box-shadow:0 0 0 0 rgba(217,70,239,.55)}
  70%{box-shadow:0 0 0 14px rgba(217,70,239,0)}
  100%{box-shadow:0 0 0 0 rgba(217,70,239,0)}
}

/* ---- cards / grids ---- */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{
  background:var(--panel);border:1px solid var(--panel-brd);border-radius:var(--radius);
  padding:24px;transition:.25s;position:relative;overflow:hidden
}
.card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 18px 50px -20px rgba(217,70,239,.5)}
.card h3{font-size:1.12rem;margin-bottom:8px}
.card p{color:var(--muted);font-size:.94rem}
.card .icon{font-size:1.6rem;margin-bottom:12px;display:block}

/* about */
.about-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:start}
.about-grid p{color:var(--muted);margin-bottom:16px}
.about-grid strong{color:var(--txt)}
.facts{display:flex;flex-direction:column;gap:14px}
.fact{background:var(--panel);border:1px solid var(--panel-brd);border-radius:14px;padding:16px 18px}
.fact .k{font-size:.72rem;text-transform:uppercase;letter-spacing:2px;color:var(--accent);font-weight:700}
.fact .val{font-size:.98rem;color:var(--txt);margin-top:2px}

/* publications */
.pub{border-left:2px solid var(--panel-brd);padding:0 0 26px 22px;position:relative}
.pub::before{content:"";position:absolute;left:-7px;top:5px;width:12px;height:12px;border-radius:50%;
  background:linear-gradient(120deg,var(--v2),var(--v3))}
.pub .year{font-size:.75rem;font-weight:700;color:var(--accent);letter-spacing:1px}
.pub h3{font-size:1.05rem;margin:4px 0 6px}
.pub .authors{font-size:.88rem;color:var(--muted)}
.pub .authors b{color:var(--txt);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:3px;text-decoration-thickness:2px}
.pub .venue{font-size:.85rem;color:var(--muted);font-style:italic;margin-top:3px}
.pub .links{margin-top:8px;display:flex;gap:14px;flex-wrap:wrap}
.pub .links a{font-size:.8rem;color:var(--accent);border:1px solid var(--panel-brd);border-radius:999px;padding:3px 12px;transition:.2s}
.pub .links a:hover{background:var(--accent);color:#fff}
.subhead{font-family:Georgia,serif;font-size:1.15rem;color:var(--txt);margin:8px 0 24px;opacity:.9}
.pub-cards{margin-bottom:12px}
.pub-cards .card{display:flex;flex-direction:column}
.pub-cards .card .yv{font-size:.72rem;font-weight:700;color:var(--accent);letter-spacing:1px;text-transform:uppercase}
.pub-cards .card h3{font-size:1rem;margin:8px 0}
.pub-cards .card .auth{font-size:.82rem;color:var(--muted);margin-bottom:14px}
.pub-cards .card .auth b{color:var(--txt);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:3px;text-decoration-thickness:2px}
.pub-cards .cardlinks{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;padding-top:8px}
.pub-cards .card .doi{font-size:.8rem;color:var(--accent);border:1px solid var(--panel-brd);border-radius:999px;padding:4px 13px;transition:.2s}
.pub-cards .card .doi:hover{background:var(--accent);color:#fff}

/* conferences */
.conf-list{display:grid;gap:12px}
.conf{display:grid;grid-template-columns:120px 1fr;gap:16px;background:var(--panel);border:1px solid var(--panel-brd);
  border-radius:14px;padding:16px 18px;transition:.2s}
.conf:hover{border-color:var(--accent)}
.conf .when{font-size:.8rem;font-weight:700;color:var(--accent)}
.conf .what{font-size:.94rem}
.conf .where{font-size:.82rem;color:var(--muted);margin-top:2px}
.count-badge{display:inline-block;font-size:.8rem;color:var(--muted);margin-left:8px}

/* awards */
.award-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--panel-brd)}
.award-item:last-child{border:none}
.award-item .yr{min-width:92px;font-size:.8rem;font-weight:700;color:var(--accent)}
.award-item .txt{font-size:.94rem;color:var(--muted)}
.award-item .txt b{color:var(--txt)}

/* contact */
.contact-box{text-align:center;background:var(--panel);border:1px solid var(--panel-brd);border-radius:var(--radius);
  padding:clamp(32px,6vw,60px)}
.contact-box h2{margin-bottom:12px}
.contact-box p{color:var(--muted);max-width:50ch;margin:0 auto 26px}
.social{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.social .social-brand{color:#fff;border-color:transparent;box-shadow:0 10px 24px -13px var(--social-shadow)}
.social .social-scholar{--social-shadow:#4285f4;background:linear-gradient(100deg,#174ea6,#2b6cc4)}
.social .social-orcid{--social-shadow:#a6ce39;background:linear-gradient(100deg,#3f5b0d,#567719)}
.social .social-linkedin{--social-shadow:#0a66c2;background:linear-gradient(100deg,#004182,#0a66c2)}
.social .social-brand:hover{color:#fff;border-color:transparent;background:linear-gradient(100deg,var(--brand-from),var(--brand-to));filter:saturate(1.12) brightness(1.03);box-shadow:0 14px 30px -12px var(--social-shadow)}
.social .social-scholar{--brand-from:#174ea6;--brand-to:#2b6cc4}
.social .social-orcid{--brand-from:#3f5b0d;--brand-to:#567719}
.social .social-linkedin{--brand-from:#004182;--brand-to:#0a66c2}
html[data-theme="light"] .social .social-brand{color:#fff;border-color:transparent;box-shadow:0 9px 22px -13px var(--social-shadow)}
html[data-theme="light"] .social .social-brand:hover{color:#fff;box-shadow:0 13px 28px -12px var(--social-shadow)}

footer{border-top:1px solid var(--panel-brd);padding:34px 20px;text-align:center;color:var(--muted);font-size:.85rem}
footer a{color:var(--accent)}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

@media(max-width:760px){
  .about-grid{grid-template-columns:1fr}
  .conf{grid-template-columns:1fr}
  .conf .when{margin-bottom:-6px}
  .nav-links{position:fixed;top:60px;right:0;flex-direction:column;align-items:flex-start;gap:16px;
    background:rgba(10,7,19,.96);padding:24px 28px;border-left:1px solid var(--panel-brd);
    border-bottom:1px solid var(--panel-brd);border-radius:0 0 0 18px;box-shadow:0 24px 50px -20px rgba(0,0,0,.55);transform-origin:top center;clip-path:inset(0 0 100% 0);opacity:0;pointer-events:none;transition:clip-path .38s cubic-bezier(.2,.8,.2,1),opacity .3s ease}
  .nav-links.open{clip-path:inset(0 0 0 0);opacity:1;pointer-events:auto}
  .nav-burger{display:block}
}

/* ---- big navigation buttons ---- */
.biglinks{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:6px}
.biglinks.one{grid-template-columns:1fr}
.biglink{display:flex;flex-direction:column;gap:6px;padding:30px 28px;border-radius:var(--radius);border:1px solid var(--panel-brd);background:linear-gradient(135deg,rgba(124,58,237,.20),rgba(217,70,239,.12) 55%,rgba(79,70,229,.17));transition:.25s}
.biglink:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 18px 50px -20px rgba(217,70,239,.5)}
.biglink .bl-t{font-family:Georgia,serif;font-size:1.25rem;color:var(--txt)}
.biglink .bl-s{color:var(--muted);font-size:.9rem}
.biglink .bl-a{align-self:flex-start;margin-top:16px;display:inline-flex;align-items:center;gap:6px;padding:9px 20px;border-radius:999px;background:linear-gradient(100deg,var(--v1),var(--v2));color:#fff;font-weight:600;font-size:.9rem;box-shadow:0 10px 26px -10px rgba(217,70,239,.6);transition:.2s}
.biglink:hover .bl-a{filter:brightness(1.14);box-shadow:0 14px 32px -10px rgba(217,70,239,.8)}
.backhome{font-size:.9rem;color:var(--accent);font-weight:600}
@media(max-width:640px){.biglinks{grid-template-columns:1fr}}

.backbar{max-width:var(--maxw);margin:0 auto;padding:20px clamp(18px,4vw,32px) 0}

/* ============ THEME TOGGLE + LANGUAGE DROPDOWN ============ */
.theme-toggle{border:1px solid var(--panel-brd);border-radius:999px;background:transparent;color:var(--txt);cursor:pointer;width:34px;height:34px;font-size:.95rem;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:.2s}
.theme-toggle:hover{border-color:var(--accent);transform:translateY(-1px)}
.icon-moon{display:none}
html[data-theme="light"] .icon-sun{display:none}
html[data-theme="light"] .icon-moon{display:inline}
.flag{width:20px;height:14px;border-radius:2px;display:inline-block;vertical-align:middle;box-shadow:0 0 0 1px rgba(0,0,0,.14);flex:0 0 auto}
.lang-dd{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--accent);border-radius:999px;background:linear-gradient(100deg,rgba(124,58,237,.16),rgba(217,70,239,.16));color:var(--txt);cursor:pointer;padding:5px 11px;font-family:inherit;font-weight:700;font-size:.8rem;transition:.2s}
.lang-btn:hover{filter:brightness(1.08);box-shadow:0 0 0 3px rgba(217,70,239,.16)}
.lang-cur{display:inline-flex;align-items:center;gap:7px}
.lang-btn .caret{color:var(--accent);font-size:.7rem}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);list-style:none;margin:0;padding:6px;background:var(--bg2);border:1px solid var(--panel-brd);border-radius:14px;min-width:134px;display:none;z-index:60;box-shadow:0 20px 50px -18px rgba(0,0,0,.45)}
.lang-menu.open{display:block}
.lang-menu li{display:flex;align-items:center;gap:9px;padding:8px 11px;border-radius:9px;cursor:pointer;font-size:.85rem;color:var(--txt);white-space:nowrap}
.lang-menu li:hover{background:var(--panel)}

/* ============ LIGHT THEME ============ */
html[data-theme="light"]{
  --bg:#f5f2fc; --bg2:#e8e1f6;
  --panel:rgba(124,58,237,.06);
  --panel-brd:rgba(124,58,237,.22);
  --txt:#1c1533; --muted:#5c5578; --accent:#c026d3;
}
html[data-theme="light"] nav{background:rgba(255,255,255,.62)}
html[data-theme="light"] .nav-links{--panelbg:rgba(255,255,255,.97)}
html[data-theme="light"] .hero h1{background:linear-gradient(100deg,#2a1b4d 8%,var(--v2) 52%,var(--v3) 92%);-webkit-background-clip:text;background-clip:text;color:transparent}
html[data-theme="light"] .bg-glow{opacity:.85}
html[data-theme="light"] .card:hover,html[data-theme="light"] .biglink:hover{box-shadow:0 18px 50px -22px rgba(124,58,237,.4)}

/* mobile menu panel bg adapts to theme */
@media(max-width:760px){
  .nav-links{background:var(--panelbg, rgba(10,7,19,.96))}
}

/* ---- nav right cluster (controls stay visible on mobile) ---- */
.nav-right{display:flex;align-items:center;gap:16px}
@media(max-width:760px){
  .nav-right{gap:10px}
  .nav-burger{order:3}
}

/* ---- team ---- */
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.member{display:flex;flex-direction:column}
.avatar{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:Georgia,serif;font-size:1.4rem;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--v1),var(--v2),var(--v3));margin-bottom:14px;box-shadow:0 10px 30px -12px rgba(217,70,239,.6)}
.member h3{font-size:1.15rem;margin-bottom:2px}
.member .mrole{font-size:.82rem;color:var(--accent);font-weight:600;margin-bottom:10px}
.member .mdesc{font-size:.92rem;color:var(--muted)}
/* ---- blog ---- */
.posts{display:grid;gap:16px}
.post{background:var(--panel);border:1px solid var(--panel-brd);border-radius:var(--radius);padding:24px;transition:.25s}
.post:hover{border-color:var(--accent)}
.post .date{font-size:.72rem;color:var(--accent);font-weight:700;letter-spacing:1px;text-transform:uppercase}
.post h3{font-size:1.25rem;margin:6px 0 8px}
.post p{color:var(--muted)}
.post .video{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;margin-top:14px;border:1px solid var(--panel-brd)}
.post .video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.empty{text-align:center;color:var(--muted);padding:48px 24px;border:1px dashed var(--panel-brd);border-radius:var(--radius)}

/* ---- team photos / carousels ---- */
.carousel{position:relative;overflow:hidden}
.cslide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1s ease}
.cslide.active{opacity:1}
.mphoto{aspect-ratio:1/1;border-radius:14px;margin-bottom:14px;border:1px solid var(--panel-brd)}
.team-banner{aspect-ratio:16/7;border-radius:var(--radius);margin-bottom:26px;border:1px solid var(--panel-brd)}
@media(max-width:640px){.team-banner{aspect-ratio:16/9}}

/* ---- soften animation in light mode (avoid clashing with text) ---- */
html[data-theme="light"] #energy{opacity:.4;filter:blur(1px)}
html[data-theme="light"] .bg-glow{opacity:.6}

.inlink{color:var(--accent);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:2px;font-weight:600}
.inlink:hover{filter:brightness(1.15)}

/* ---- CV preview box ---- */
.cvbox{display:flex;gap:14px;align-items:center;background:var(--panel);border:1px solid var(--panel-brd);border-radius:14px;padding:12px 14px;transition:.2s}
.cvbox:hover{border-color:var(--accent);transform:translateY(-2px)}
.cvbox img{width:56px;height:74px;object-fit:cover;object-position:top;border-radius:6px;border:1px solid var(--panel-brd);flex:0 0 auto;box-shadow:0 6px 18px -8px rgba(0,0,0,.5)}
.cvbox .k{font-size:.72rem;text-transform:uppercase;letter-spacing:2px;color:var(--accent);font-weight:700}
.cvbox .cvdl{font-size:.95rem;color:var(--txt);margin-top:3px;font-weight:600}

/* ---- stats band ---- */
.stats{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.stat{flex:1 1 150px;background:var(--panel);border:1px solid var(--panel-brd);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:4px;text-decoration:none}
.stat .num{font-family:Georgia,serif;font-size:2rem;font-weight:700;line-height:1;background:linear-gradient(100deg,var(--v1),var(--v2),var(--v3));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{font-size:.82rem;color:var(--muted)}
.statlink{transition:.2s}.statlink:hover{border-color:var(--accent);transform:translateY(-3px)}

/* ---- news / latest ---- */
.news{display:grid;gap:12px}
.news-item{display:grid;grid-template-columns:140px 1fr;gap:16px;background:var(--panel);border:1px solid var(--panel-brd);border-radius:14px;padding:16px 18px;transition:.2s}
.news-item:hover{border-color:var(--accent)}
.news-item .when{display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.news-item .date{font-size:.82rem;font-weight:700;color:var(--accent)}
.news-item .kind{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--txt);background:var(--panel);border:1px solid var(--panel-brd);border-radius:999px;padding:2px 10px;text-decoration:none;white-space:nowrap;transition:.2s}
a.kind:hover{border-color:var(--accent);color:var(--accent)}
.news-item .what{font-size:.95rem;color:var(--txt)}
.news-item em{color:var(--muted);font-style:italic}
@media(max-width:640px){.news-item{grid-template-columns:1fr}.news-item .when{flex-direction:row;align-items:center;gap:8px;margin-bottom:2px}}

/* ---- scientific figure card ---- */
.figcard{margin:34px 0 0;background:#fbfaff;border:1px solid var(--panel-brd);border-radius:var(--radius);padding:22px;text-align:center}
.figcard img{max-width:100%;height:auto;border-radius:8px}
.figcard figcaption{margin-top:14px;font-size:.86rem;color:#5b5478;max-width:70ch;margin-left:auto;margin-right:auto}

/* ---- publication thumbnails ---- */
.pub-cards .card .thumb{width:100%;aspect-ratio:5/4;object-fit:cover;object-position:top;border-radius:10px;border:1px solid var(--panel-brd);margin-bottom:14px;display:block}

/* ---- Google Scholar compact box ---- */
.scholarbox{flex:1 1 220px;background:var(--panel);border:1px solid var(--panel-brd);border-radius:16px;padding:18px 20px;display:flex;flex-direction:column;gap:12px;text-decoration:none;transition:.2s}
.scholarbox:hover{border-color:var(--accent);transform:translateY(-3px)}
.scholarbox .sb-title{font-size:.82rem;font-weight:700;color:var(--accent);letter-spacing:.5px}
.scholarbox .sb-metrics{display:flex;gap:26px}
.scholarbox .sb-m{display:flex;flex-direction:column}
.scholarbox .sb-m b{font-family:Georgia,serif;font-size:1.7rem;line-height:1;background:linear-gradient(100deg,var(--v1),var(--v2),var(--v3));-webkit-background-clip:text;background-clip:text;color:transparent}
.scholarbox .sb-m i{font-style:normal;font-size:.74rem;color:var(--muted);margin-top:3px}

/* ---- figure caption serif (Times New Roman) ---- */
.figcard figcaption{font-family:"Times New Roman",Times,Georgia,serif;font-style:italic;font-size:1rem}

/* ---- publication thumbnails (all-articles page) ---- */
.pubthumb{float:right;width:88px;height:117px;object-fit:cover;object-position:top;border-radius:8px;border:1px solid var(--panel-brd);margin:0 0 8px 18px;box-shadow:0 8px 20px -10px rgba(0,0,0,.5)}
@media(max-width:560px){.pubthumb{width:64px;height:85px;margin-left:12px}}
.scholarbox .sb-link{font-size:1.05rem;color:var(--txt);font-weight:600;margin-top:2px}
.scholarbox:hover .sb-link{color:var(--accent)}

/* ---- blog: featured, timeline, drive media ---- */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.post-feat{background:linear-gradient(135deg,rgba(124,58,237,.16),rgba(217,70,239,.09) 60%,rgba(79,70,229,.12));border-color:rgba(168,120,255,.28)}
.post .pmeta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.post .pdate{font-size:.74rem;font-weight:700;color:var(--accent);letter-spacing:1px;text-transform:uppercase}
.post .pcat{font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--txt);background:var(--panel);border:1px solid var(--panel-brd);border-radius:999px;padding:2px 10px}
.pgallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:14px}
.pgallery img{width:100%;height:170px;object-fit:cover;border-radius:10px;border:1px solid var(--panel-brd);display:block;transition:.2s;background:var(--panel)}
.pgallery a:hover img{filter:brightness(1.08);border-color:var(--accent);transform:translateY(-2px)}
.pvideo{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;margin-top:14px;border:1px solid var(--panel-brd)}
.pvideo iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.tl-year{font-family:Georgia,serif;font-size:1.55rem;color:var(--txt);margin:28px 0 12px;padding-left:14px;border-left:3px solid var(--accent)}
.tl-item{margin-bottom:16px}

/* ===== Document accordion (notes subpages) ===== */
.doclist{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.docitem{border:1px solid var(--panel-brd);border-radius:16px;background:var(--panel);overflow:hidden;
  transition:border-color .3s ease, box-shadow .3s ease, transform .25s ease}
.docitem:hover{border-color:rgba(168,120,255,.34);box-shadow:0 14px 34px -22px rgba(217,70,239,.55)}
.docitem.open{border-color:rgba(168,120,255,.5);box-shadow:0 18px 44px -22px rgba(217,70,239,.5)}
.dochead{display:flex;align-items:center;gap:14px;width:100%;padding:16px 18px;cursor:pointer;
  background:none;border:0;text-align:left;color:inherit;font:inherit;position:relative}
.dochead::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--v1),var(--v2),var(--v3));transform:scaleY(0);transform-origin:top;
  transition:transform .35s cubic-bezier(.65,0,.35,1)}
.docitem.open .dochead::before,.dochead:hover::before{transform:scaleY(1)}
.docnum{flex:none;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-size:.78rem;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--v1),var(--v2));
  box-shadow:0 6px 16px -8px rgba(217,70,239,.7)}
.docdate{flex:none;font-size:.76rem;font-weight:600;letter-spacing:.4px;text-transform:uppercase;
  color:var(--accent);min-width:74px}
.doctitle{flex:1;font-weight:600;font-size:1rem;line-height:1.35;transition:color .25s ease}
.dochead:hover .doctitle{color:#fff}
html[data-theme="light"] .dochead:hover .doctitle{color:var(--v3)}
.docchev{flex:none;color:var(--muted);transition:transform .38s cubic-bezier(.2,.8,.2,1), color .25s ease}
.docitem.open .docchev{transform:rotate(180deg);color:var(--accent)}
.docpanel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .42s cubic-bezier(.2,.8,.2,1)}
.docitem.open .docpanel{grid-template-rows:1fr}
.docpanel>.docinner{overflow:hidden}
.docbody{display:flex;gap:20px;padding:2px 18px 20px 62px;opacity:0;transform:translateY(-6px);
  transition:opacity .34s ease .06s, transform .34s ease .06s}
.docitem.open .docbody{opacity:1;transform:none}
.docthumb{flex:none;width:118px;border-radius:10px;border:1px solid var(--panel-brd);background:#fff;
  box-shadow:0 10px 26px -14px rgba(0,0,0,.6);transition:transform .3s ease, box-shadow .3s ease}
.docthumb:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 16px 34px -14px rgba(217,70,239,.5)}
.docsum{flex:1;min-width:0}
.docsum p{color:var(--muted);font-size:.94rem;line-height:1.65;margin:0 0 14px}
.docopen{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  background:linear-gradient(100deg,var(--v1),var(--v2));color:#fff;font-weight:600;font-size:.85rem;
  box-shadow:0 10px 26px -12px rgba(217,70,239,.65);transition:transform .18s ease, box-shadow .25s ease}
.docopen:hover{transform:translateY(-2px);box-shadow:0 14px 32px -12px rgba(217,70,239,.85)}
.docopen:active{transform:scale(.95)}
.dochint{display:block;margin-top:10px;font-size:.76rem;color:var(--muted);opacity:.75}
@media(max-width:640px){
  .dochead{padding:14px;gap:10px;flex-wrap:wrap}
  .docdate{min-width:0;font-size:.7rem}
  .doctitle{flex:1 1 100%;order:3;font-size:.94rem}
  .docbody{flex-direction:column;padding:2px 14px 18px;gap:14px}
  .docthumb{width:96px;align-self:flex-start}
}

/* ===== Nav dropdowns (section anchor + subpage) ===== */
.nav-links .navgroup{position:relative;display:flex;align-items:center}
.navgroup .navrow{display:flex;align-items:center;gap:1px}
.subcaret{background:none;border:0;padding:2px 3px;cursor:pointer;line-height:1;font-size:.6rem;
  color:var(--muted);opacity:.7;transition:transform .32s cubic-bezier(.2,.8,.2,1), color .25s ease, opacity .25s ease}
.navgroup:hover .subcaret,.navgroup.open .subcaret{color:var(--accent);opacity:1}
.navgroup:hover .subcaret{transform:rotate(180deg)}
.submenu{position:absolute;top:100%;left:-10px;margin-top:12px;min-width:200px;z-index:70;
  padding:8px;border-radius:14px;background:rgba(10,7,19,.97);border:1px solid var(--panel-brd);
  box-shadow:0 26px 54px -20px rgba(0,0,0,.7);
  opacity:0;transform:translateY(-8px) scale(.98);pointer-events:none;
  transition:opacity .26s ease, transform .3s cubic-bezier(.2,.8,.2,1)}
.submenu::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px}
html[data-theme="light"] .submenu{background:rgba(255,255,255,.98)}
.navgroup:hover .submenu,.navgroup.open .submenu{opacity:1;transform:none;pointer-events:auto}
.submenu .subinner{display:flex;flex-direction:column;gap:2px}
.submenu a{display:block;padding:8px 12px;border-radius:9px;font-size:.84rem;font-weight:500;
  color:var(--muted);white-space:nowrap;
  transition:background .22s ease, color .22s ease, transform .18s ease}
.submenu a::after{display:none}
.submenu a:hover{background:linear-gradient(100deg,rgba(124,58,237,.20),rgba(217,70,239,.12));
  color:var(--txt);transform:translateX(3px);text-shadow:none}
@media(max-width:760px){
  .nav-links .navgroup{flex-direction:column;align-items:flex-start;width:100%}
  .navgroup .navrow{width:100%;justify-content:space-between}
  .subcaret{font-size:.72rem;padding:4px 6px}
  .navgroup:hover .subcaret{transform:none}
  .navgroup.open .subcaret{transform:rotate(180deg)}
  .submenu{position:static;margin:0;min-width:0;padding:0 0 0 12px;border:0;background:none;box-shadow:none;
    opacity:1;transform:none;pointer-events:auto;
    display:grid;grid-template-rows:0fr;transition:grid-template-rows .36s cubic-bezier(.2,.8,.2,1)}
  .navgroup:hover .submenu{grid-template-rows:0fr}
  .navgroup.open .submenu{grid-template-rows:1fr;padding-top:6px}
  .submenu .subinner{overflow:hidden}
  .submenu a{padding:7px 10px;font-size:.82rem;border-left:2px solid rgba(168,120,255,.28);border-radius:0 8px 8px 0}
}

/* ===== Nav dropdowns · gradient + entry animation ===== */
.submenu{background:linear-gradient(150deg,rgba(124,58,237,.20),rgba(217,70,239,.10) 55%,rgba(79,70,229,.17)),rgba(10,7,19,.97);
  border-color:rgba(168,120,255,.32)}
html[data-theme="light"] .submenu{background:linear-gradient(150deg,rgba(124,58,237,.11),rgba(217,70,239,.06) 55%,rgba(79,70,229,.10)),rgba(255,255,255,.98)}
.submenu::after{content:"";position:absolute;left:14px;right:14px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--v1),var(--v2),var(--v3));
  opacity:0;transform:scaleX(.35);transform-origin:left center;
  transition:opacity .3s ease .06s, transform .44s cubic-bezier(.2,.8,.2,1) .06s}
.navgroup:hover .submenu::after,.navgroup.open .submenu::after{opacity:.95;transform:scaleX(1)}

.submenu a{padding-left:22px;
  transition:background .22s ease, color .22s ease, padding-left .22s cubic-bezier(.2,.8,.2,1)}
.submenu a::before{content:"";position:absolute;left:9px;top:50%;width:5px;height:5px;margin-top:-2.5px;
  border-radius:50%;background:linear-gradient(135deg,var(--v1),var(--v2));opacity:.38;transform:scale(.7);
  transition:opacity .25s ease, transform .32s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease}
.submenu a:hover{transform:none;padding-left:26px;color:#fff;
  background:linear-gradient(100deg,rgba(124,58,237,.26),rgba(217,70,239,.15))}
html[data-theme="light"] .submenu a:hover{color:var(--v3)}
.submenu a:hover::before{opacity:1;transform:scale(1.2);box-shadow:0 0 10px rgba(217,70,239,.9)}

@keyframes subin{from{opacity:0;transform:translateY(-7px)}to{opacity:1;transform:none}}
.navgroup:hover .submenu a,.navgroup.open .submenu a{animation:subin .34s cubic-bezier(.2,.8,.2,1) both}
.submenu a:nth-child(1){animation-delay:.04s}
.submenu a:nth-child(2){animation-delay:.09s}
.submenu a:nth-child(3){animation-delay:.14s}
.submenu a:nth-child(4){animation-delay:.19s}

/* caret picks up the gradient, parent link lights up */
.navgroup:hover .subcaret,.navgroup.open .subcaret{color:transparent;
  background:linear-gradient(100deg,var(--v1),var(--v2),var(--v3));
  -webkit-background-clip:text;background-clip:text;
  filter:drop-shadow(0 0 6px rgba(217,70,239,.65))}
.navgroup:hover>.navrow>a,.navgroup.open>.navrow>a{color:#fff;
  text-shadow:0 0 18px rgba(217,70,239,.75),0 0 8px rgba(124,58,237,.55),0 0 2px rgba(255,255,255,.5)}
.navgroup:hover>.navrow>a::after,.navgroup.open>.navrow>a::after{transform:scaleX(1)}
html[data-theme="light"] .navgroup:hover>.navrow>a,
html[data-theme="light"] .navgroup.open>.navrow>a{color:var(--v3);text-shadow:none}

@media(max-width:760px){
  .submenu{position:relative}
  .submenu::after{left:0;right:auto;top:6px;bottom:2px;width:2px;height:auto;
    transform:scaleY(.2);transform-origin:top center;
    transition:opacity .3s ease .06s, transform .44s cubic-bezier(.2,.8,.2,1) .06s;
    background:linear-gradient(180deg,var(--v1),var(--v2),var(--v3))}
  .navgroup:hover .submenu::after{opacity:0;transform:scaleY(.2)}
  .navgroup.open .submenu::after{opacity:.95;transform:scaleY(1)}
  .submenu a{border-left:0;border-radius:8px;padding-left:20px}
  .submenu a:hover{padding-left:24px}
  .navgroup:hover .submenu a{animation:none}
  .navgroup.open .submenu a{animation:subin .34s cubic-bezier(.2,.8,.2,1) both}
}
.docopen.alt{background:none;border:1px solid var(--panel-brd);color:var(--muted);box-shadow:none;margin-left:8px}
.docopen.alt:hover{border-color:rgba(168,120,255,.45);color:var(--txt);
  background:linear-gradient(100deg,rgba(124,58,237,.14),rgba(217,70,239,.08));box-shadow:0 8px 22px -12px rgba(217,70,239,.5)}

/* ===== Paper explainer · mode switch (Divulgación / Especialista) ===== */
.modewash{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:0;
  background:radial-gradient(1200px 700px at 20% 10%,rgba(139,92,246,.30),transparent 60%),
             radial-gradient(1000px 600px at 85% 70%,rgba(217,70,239,.20),transparent 62%),
             linear-gradient(160deg,rgba(76,49,140,.42),rgba(46,28,92,.30));
  transition:opacity .75s cubic-bezier(.4,0,.2,1)}
html[data-mode="pop"] .modewash{opacity:1}
.modedark{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:0;
  background:linear-gradient(160deg,rgba(3,2,8,.62),rgba(6,4,16,.52));
  transition:opacity .75s cubic-bezier(.4,0,.2,1)}
html[data-mode="tech"] .modedark{opacity:1}
html[data-theme="light"] .modewash{opacity:0}
html[data-theme="light"][data-mode="pop"] .modewash{opacity:.5}
html[data-theme="light"] .modedark{background:linear-gradient(160deg,rgba(40,28,70,.10),rgba(20,14,40,.08))}

.ms-sentinel{height:1px}
.modeswitch{position:relative;display:flex;gap:0;width:min(420px,100%);margin:22px auto 0;
  padding:5px;border-radius:999px;border:1px solid var(--panel-brd);
  background:rgba(10,7,19,.55);backdrop-filter:blur(10px);
  box-shadow:0 14px 40px -22px rgba(0,0,0,.8);touch-action:pan-y;user-select:none;
  transition:box-shadow .3s ease, transform .3s ease}
html[data-theme="light"] .modeswitch{background:rgba(255,255,255,.72)}
.ms-glow{position:absolute;top:5px;left:5px;width:calc(50% - 5px);height:calc(100% - 10px);
  border-radius:999px;background:linear-gradient(100deg,var(--v1),var(--v2),var(--v3));
  box-shadow:0 8px 26px -8px rgba(217,70,239,.85),0 0 22px rgba(124,58,237,.5);
  transition:transform .46s cubic-bezier(.34,1.4,.5,1), box-shadow .4s ease}
.modeswitch.dragging .ms-glow{transition:box-shadow .3s ease}
.modeswitch.dragging{box-shadow:0 18px 46px -20px rgba(217,70,239,.55)}
.ms-btn{position:relative;z-index:2;flex:1;padding:11px 8px;border:0;background:none;cursor:pointer;
  font:inherit;font-size:.88rem;font-weight:600;letter-spacing:.2px;color:var(--muted);
  border-radius:999px;transition:color .3s ease, text-shadow .3s ease}
.ms-btn.active{color:#fff;text-shadow:0 1px 10px rgba(0,0,0,.45)}
.ms-btn:not(.active):hover{color:var(--txt)}
.ms-hint{display:block;text-align:center;margin-top:9px;font-size:.72rem;color:var(--muted);opacity:.6}

.mspanel{display:none;animation:msfade .5s cubic-bezier(.2,.8,.2,1)}
.mspanel.on{display:block}
@keyframes msfade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

@media(max-width:760px){
  /* en móvil el interruptor vive siempre anclado abajo: sin transición, sin salto del texto */
  .modeswitch{position:fixed;left:50%;bottom:16px;top:auto;z-index:80;margin:0;
    width:min(420px,calc(100% - 28px));transform:translateX(-50%);
    background:rgba(10,7,19,.92);border-color:rgba(168,120,255,.35);
    box-shadow:0 22px 50px -18px rgba(0,0,0,.9),0 0 30px -14px rgba(217,70,239,.55)}
  html[data-theme="light"] .modeswitch{background:rgba(255,255,255,.95)}
  .modeswitch.dragging{transform:translateX(-50%)}
  .ms-hint,.ms-sentinel{display:none}
  /* aire al final para que el último párrafo no quede tapado por el interruptor */
  .mspanel{padding-bottom:86px}
}
.papermeta{text-align:center;color:var(--muted);font-size:.88rem;margin-top:-6px}
.papermeta a{color:var(--accent);font-weight:600}
.mspanel h3{font-family:Georgia,serif;font-size:1.35rem;margin:34px 0 12px;
  background:linear-gradient(100deg,var(--v1),var(--v2),var(--v3));-webkit-background-clip:text;background-clip:text;color:transparent}
.mspanel p{color:var(--muted);line-height:1.78;margin-bottom:14px}
.mspanel b{color:var(--txt)}
.mspanel ul{margin:0 0 16px 20px}
.mspanel li{color:var(--muted);line-height:1.7;margin-bottom:8px}
.mspanel .analogy{border-left:2px solid;border-image:linear-gradient(180deg,var(--v1),var(--v2)) 1;
  padding-left:16px;font-style:italic;color:var(--txt);opacity:.92}
.mspanel .draftnote{font-size:.84rem;padding:10px 14px;border-radius:10px;
  border:1px dashed rgba(168,120,255,.4);background:rgba(124,58,237,.08)}
.mspanel .q{display:inline-block;margin-top:4px;padding:2px 8px;border-radius:6px;font-size:.86rem;
  background:rgba(217,70,239,.14);color:var(--accent);font-weight:600}
.aidisc{margin-top:38px;padding-top:16px;border-top:1px solid var(--panel-brd);
  font-size:.78rem;color:var(--muted);opacity:.7;text-align:center}

/* ===== Hero quick-links (blog / notes) ===== */
.hero-quick{display:flex;flex-wrap:wrap;gap:12px;margin:4px 0 20px}
.qlink{position:relative;display:inline-flex;align-items:center;gap:10px;padding:11px 20px 11px 16px;
  border-radius:14px;overflow:hidden;font-size:.9rem;font-weight:600;color:#fff;
  background:linear-gradient(100deg,var(--v1),var(--v2) 55%,var(--v3));
  box-shadow:0 12px 30px -14px rgba(217,70,239,.75);
  transition:transform .22s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease}
.qlink.alt{background:linear-gradient(100deg,var(--v3),var(--v4) 50%,var(--v1));
  box-shadow:0 12px 30px -14px rgba(124,58,237,.8)}
.qlink::before{content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.32),transparent);
  transform:skewX(-18deg);transition:left .6s cubic-bezier(.3,.7,.3,1)}
/* El destello blanco sólo donde hay un puntero con hover de verdad. En el móvil el
   navegador sintetiza :hover al tocar y al pasar el dedo durante el scroll, así que
   se disparaba solo: una franja blanca inclinada de 152 px cruzando el 90 % del ancho
   de la pantalla en 0,6 s. Eso es el "rayo" que aparecía al azar. */
@media (hover:hover) and (pointer:fine){
  .qlink:hover::before{left:120%}
  .qlink:hover{transform:translateY(-3px);box-shadow:0 18px 38px -14px rgba(217,70,239,.95)}
}
.qlink:active{transform:scale(.96)}
.qlink .qi{font-size:1.05rem;line-height:1}
.qlink .qt{display:flex;flex-direction:column;line-height:1.2}
.qlink .qs{font-size:.72rem;font-weight:500;opacity:.82}
@media(max-width:560px){.hero-quick{gap:10px}.qlink{flex:1 1 100%;justify-content:center}}
.plink{display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:10px 20px;border-radius:999px;
  background:linear-gradient(100deg,var(--v1),var(--v2));color:#fff;font-weight:600;font-size:.86rem;
  box-shadow:0 10px 26px -12px rgba(217,70,239,.65);transition:transform .18s ease, box-shadow .25s ease}
.plink:hover{transform:translateY(-2px);box-shadow:0 14px 32px -12px rgba(217,70,239,.9)}
.plink:active{transform:scale(.96)}

/* ===== Hero secondary buttons · soft gradients ===== */
.btn.gsoft,.btn.gsoft2{color:#fff;border-color:transparent;position:relative;overflow:hidden}
.btn.gsoft{background:linear-gradient(100deg,rgba(124,58,237,.62),rgba(79,70,229,.50));
  box-shadow:0 10px 26px -14px rgba(124,58,237,.7)}
.btn.gsoft2{background:linear-gradient(100deg,rgba(100,83,161,.68),rgba(217,70,239,.44));
  box-shadow:0 10px 26px -14px rgba(217,70,239,.6)}
.btn.gsoft:hover{background:linear-gradient(100deg,var(--v1),var(--v3));
  box-shadow:0 16px 34px -14px rgba(124,58,237,.95);transform:translateY(-2px)}
.btn.gsoft2:hover{background:linear-gradient(100deg,var(--v4),var(--v2));
  box-shadow:0 16px 34px -14px rgba(217,70,239,.9);transform:translateY(-2px)}
.btn.gsoft:active,.btn.gsoft2:active{transform:scale(.95)}
html[data-theme="light"] .btn.gsoft{background:linear-gradient(100deg,rgba(124,58,237,.9),rgba(79,70,229,.78))}
html[data-theme="light"] .btn.gsoft2{background:linear-gradient(100deg,rgba(100,83,161,.92),rgba(217,70,239,.7))}

/* pull the hero up a bit on desktop (mobile stays untouched) */
@media(min-width:761px){
  .hero{min-height:82vh;align-items:flex-start;padding-top:26px}
}

/* ===== Scroll peek · fade + double chevron ===== */
.peek{position:fixed;left:0;right:0;bottom:0;height:132px;z-index:60;pointer-events:none;
  display:flex;align-items:flex-end;justify-content:center;padding-bottom:14px;
  background:linear-gradient(to top,var(--bg) 10%,rgba(10,7,19,.72) 46%,transparent 100%);
  opacity:0;transform:translateY(12px);
  transition:opacity .55s cubic-bezier(.2,.8,.2,1), transform .55s cubic-bezier(.2,.8,.2,1)}
html[data-theme="light"] .peek{background:linear-gradient(to top,var(--bg) 10%,rgba(245,242,252,.75) 46%,transparent 100%)}
.peek.on{opacity:1;transform:none}
.peek-in{pointer-events:auto;display:grid;place-items:center;padding:6px 26px;border:0;background:none;
  cursor:pointer;line-height:0;transition:transform .28s cubic-bezier(.2,.8,.2,1), filter .3s ease}
.peek-in:hover{transform:translateY(4px);filter:drop-shadow(0 0 14px rgba(217,70,239,.75))}
.peek-in:active{transform:translateY(6px) scale(.94)}
.peek-svg{width:58px;height:auto;overflow:visible}
.peek-svg path{fill:none;stroke:url(#pkgrad);stroke-width:5;stroke-linecap:round;stroke-linejoin:round}
.peek-svg .pk1{opacity:.95;animation:peekbob 1.9s ease-in-out infinite}
.peek-svg .pk2{opacity:.45;animation:peekbob 1.9s ease-in-out .18s infinite}
@keyframes peekbob{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}
@media(prefers-reduced-motion:reduce){.peek-svg .pk1,.peek-svg .pk2{animation:none}}
@media(max-width:760px){.peek{height:108px;padding-bottom:12px}.peek-svg{width:48px}}

/* ===== Posts destacados en la portada ===== */
.homeblog-head{margin:0 0 20px}
.hbgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.hbpost{display:flex;flex-direction:column;justify-content:space-between;aspect-ratio:1/1;min-width:0;min-height:0;overflow:hidden;padding:22px 20px;border-radius:var(--radius);border:1px solid var(--panel-brd);
  background:linear-gradient(135deg,rgba(124,58,237,.14),rgba(217,70,239,.07) 55%,rgba(79,70,229,.12));
  transition:transform .25s ease, border-color .3s ease, box-shadow .3s ease}
.hbpost:hover{transform:translateY(-4px);border-color:rgba(168,120,255,.45);
  box-shadow:0 20px 48px -22px rgba(217,70,239,.55)}
.hbpost .pmeta{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.hbpost h3{font-family:Georgia,serif;font-size:1.2rem;margin:0 0 8px;color:var(--txt);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
.hbpost p{color:var(--muted);font-size:.9rem;line-height:1.55;margin:0;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:5;overflow:hidden}
.hbpost .hbgo{display:inline-block;margin-top:14px;color:var(--accent);font-weight:600;font-size:.88rem}
.hbpost:hover .hbgo{text-shadow:0 0 14px rgba(217,70,239,.6)}
@media(max-width:760px){
  .hbgrid{grid-template-columns:repeat(3,minmax(250px,78vw));overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:8px}
  .hbpost{scroll-snap-align:start}
}

/* ===== Botón "Explicación" en publicaciones con blog asociado ===== */
.pub .links a.explain{border-color:transparent;color:#fff;font-weight:600;
  background:linear-gradient(100deg,var(--v1),var(--v2));
  box-shadow:0 8px 20px -10px rgba(217,70,239,.7);
  display:inline-flex;align-items:center;gap:6px}
.pub .links a.explain:hover{background:linear-gradient(100deg,var(--v1),var(--v2));
  filter:brightness(1.12);transform:translateY(-1px);
  box-shadow:0 12px 26px -10px rgba(217,70,239,.95)}
.pub .links a.explain .exar{display:inline-block;font-size:.9em;line-height:1;
  transition:transform .25s cubic-bezier(.2,.8,.2,1)}
.pub .links a.explain:hover .exar{transform:translate(2px,2px)}
@media(max-width:560px){
  .pub .links{gap:8px}
  .pub .links a{font-size:.75rem;padding:3px 10px}
  .pub .links a.explain{flex:0 0 auto}
}
.pub .links a.explain{font-variant-numeric:tabular-nums;letter-spacing:.2px}

/* título original del paper, bajo el título divulgativo */
.paperorig{text-align:center;font-size:.8rem;line-height:1.5;color:var(--muted);opacity:.62;
  font-style:italic;margin:-4px auto 12px;max-width:62ch}

/* ===== Nav en una sola línea también en subpáginas ===== */
.brand{white-space:nowrap;flex:none}
.nav-links{flex-wrap:nowrap}
/* en escritorio el "← Inicio" del nav es redundante: la marca ya lleva al home
   y cada subpágina tiene su botón "Volver al inicio". Se mantiene en el menú móvil. */
@media(min-width:761px){
  .nav-links .backhome{display:none}
}
/* holgura progresiva para que nunca se parta la línea */
@media(max-width:1180px){
  .nav-links{gap:16px}
  .nav-links a{font-size:.86rem}
}
@media(max-width:1000px){
  .nav-links{gap:12px}
  .nav-links a{font-size:.82rem}
  .brand{font-size:1.05rem}
}
@media(max-width:760px){
  .nav-links{flex-wrap:wrap}
  .nav-links a{font-size:.9rem}
}

/* ===== Figuras dentro de los posts de papers ===== */
/* las figuras no ocupan el ancho completo de la columna: a 1080px se ven enormes */
.pfig{max-width:600px;margin:28px auto 24px}
.pfig.wide{max-width:760px}          /* para figuras apaisadas con rótulos finos */
@media(max-width:700px){.pfig,.pfig.wide{max-width:100%}}
.pfig img{width:100%;height:auto;display:block;border-radius:14px;
  border:1px solid var(--panel-brd);background:#fff;
  box-shadow:0 18px 44px -24px rgba(0,0,0,.7)}
.pfig figcaption{margin-top:10px;font-size:.84rem;line-height:1.6;color:var(--muted);
  padding-left:14px;border-left:2px solid;
  border-image:linear-gradient(180deg,var(--v1),var(--v2)) 1}

/* ===== Interacciones del blog ===== */
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.blog-interactions{max-width:860px;margin:42px auto 12px;padding:24px;border:1px solid var(--panel-brd);border-radius:var(--radius);
  background:linear-gradient(145deg,rgba(124,58,237,.08),rgba(255,255,255,.025) 48%,rgba(79,70,229,.07));
  box-shadow:0 24px 60px -42px rgba(217,70,239,.75)}
html[data-theme="light"] .blog-interactions{background:linear-gradient(145deg,rgba(124,58,237,.055),rgba(255,255,255,.88) 48%,rgba(79,70,229,.05));box-shadow:0 22px 52px -40px rgba(79,70,229,.45)}
.article-actions,.preview-actions,.top-post-actions,.publication-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.pdf-links{display:inline-flex;flex-wrap:wrap;align-items:center;gap:8px;min-width:0}
.pdf-links .pdf-tech{min-width:0}
.pdf-menu-wrap{position:relative;display:inline-flex;min-width:0}
.pdf-menu{position:absolute;z-index:90;left:0;top:calc(100% + 9px);display:none;width:270px;padding:8px;border:1px solid var(--panel-brd);border-radius:14px;background:rgba(18,10,36,.97);box-shadow:0 18px 45px rgba(0,0,0,.35);backdrop-filter:blur(14px)}
.pdf-menu.open{display:grid}
.pdf-choice{display:flex;align-items:center;gap:8px;width:100%;padding:10px;border-radius:9px;color:var(--txt);font:600 .78rem/1.25 system-ui,sans-serif;text-decoration:none}
.pdf-choice:hover{background:rgba(124,58,237,.16)}
html[data-theme="light"] .pdf-menu{background:rgba(255,255,255,.98);box-shadow:0 18px 42px rgba(62,42,100,.18)}
.top-post-actions{justify-content:center;margin:16px auto 24px}
.top-post-actions .pdf-tech{min-height:46px;padding-inline:18px}
.article-actions{padding-bottom:20px;border-bottom:1px solid var(--panel-brd)}
.preview-actions{margin-top:18px;padding-top:14px;border-top:1px solid var(--panel-brd)}
.preview-actions .plink{flex:0 0 auto;margin-top:0}
.preview-actions .pdf-links{flex:1 1 auto;width:100%}
.preview-actions .pdf-links .pdf-tech{flex:1 1 0;width:100%}
#bf .post-feat{display:flex;flex-direction:column;min-width:0}
#bf .preview-actions{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:stretch;margin-top:auto}
#bf .preview-actions .plink,#bf .preview-actions .pdf-tech{box-sizing:border-box;width:100%;min-width:0;padding-inline:12px;text-align:center}
#bf .preview-actions .reaction-pair .action-btn,#bf .preview-actions .share-wrap>.action-btn{height:100%}
#bf .preview-actions .reaction-pair{justify-self:start}
#bf .preview-actions .share-wrap{justify-self:end}
.publication-actions{clear:both;margin-top:13px;padding-top:11px;border-top:1px solid rgba(168,120,255,.11)}
.publication-actions .share-menu{left:0;right:auto}
.material-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 18px 12px 62px;border-top:1px solid rgba(168,120,255,.09);background:rgba(124,58,237,.025)}
.material-actions .share-menu{left:0;right:auto}
html[data-theme="light"] .material-actions{background:rgba(124,58,237,.02)}
.material-discussion{margin-top:20px;padding-top:18px;border-top:1px solid var(--panel-brd)}
.material-comment-prompt{margin:0 0 16px;color:var(--muted);font-size:.88rem;line-height:1.6}.material-comment-prompt b{color:var(--txt)}
.material-discussion .engagement-head h3{margin:0 0 12px;font:700 1.05rem/1.3 Georgia,serif;color:var(--txt)}
.material-discussion .comment-form{padding:14px}.material-discussion .comment-form textarea{min-height:88px}
.action-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:8px 13px;border:1px solid var(--panel-brd);border-radius:999px;
  background:rgba(255,255,255,.035);color:var(--txt);font:700 .78rem/1.2 system-ui,sans-serif;text-decoration:none;cursor:pointer;
  transition:transform .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease}
.action-btn:hover{transform:translateY(-1px);border-color:rgba(168,120,255,.48);background:rgba(124,58,237,.11)}
.action-btn:focus-visible{outline:3px solid rgba(217,70,239,.28);outline-offset:3px}
.action-btn svg:not(.pdf-sparks){width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.reaction-pair{display:inline-flex;align-items:center;gap:8px}
.react-like.selected{color:#fff;border-color:rgba(217,70,239,.7);background:linear-gradient(100deg,var(--v1),var(--v2));box-shadow:0 8px 22px -12px rgba(217,70,239,.9)}
.react-dislike.selected{color:#fff;border-color:rgba(79,70,229,.72);background:linear-gradient(100deg,#4338ca,#6366f1);box-shadow:0 8px 22px -12px rgba(79,70,229,.9)}
.action-btn.compact{min-height:36px;padding:6px 10px;font-size:.72rem}
.pdf-tech{isolation:isolate;overflow:visible;color:#fff;border-color:rgba(168,120,255,.38);background:linear-gradient(100deg,rgba(124,58,237,.84),rgba(217,70,239,.78),rgba(79,70,229,.84));box-shadow:0 9px 25px -15px rgba(217,70,239,.9)}
.pdf-tech:hover{background:linear-gradient(100deg,rgba(124,58,237,.96),rgba(217,70,239,.92),rgba(79,70,229,.96));box-shadow:0 12px 30px -14px rgba(217,70,239,.95)}
.pdf-arrow{display:inline-block;color:rgba(255,255,255,.92);font-size:1.05rem;line-height:1;transition:transform .24s ease,text-shadow .24s ease}
.pdf-tech:hover .pdf-arrow{color:#fff;text-shadow:0 0 8px rgba(255,255,255,.75)}
.pdf-tech:hover .pdf-arrow-in{transform:translateX(3px)}.pdf-tech:hover .pdf-arrow-out{transform:translateX(-3px)}
.pdf-sparks{position:absolute;z-index:-1;inset:-4px;width:calc(100% + 8px);height:calc(100% + 8px);overflow:visible;pointer-events:none}
.pdf-ring,.pdf-spark{fill:none;vector-effect:non-scaling-stroke}.pdf-ring{stroke:rgba(217,70,239,.2);stroke-width:1}
.pdf-spark{stroke:#fff;stroke-width:2.5;stroke-linecap:round;stroke-dasharray:1 99;filter:drop-shadow(0 0 2px #fff) drop-shadow(0 0 4px var(--v2));animation:pdf-spark-lap 3.2s linear infinite}
.pdf-spark.spark-2{stroke:var(--v2);stroke-width:2;opacity:.55;animation-delay:-.10s}.pdf-spark.spark-3{stroke:var(--v1);stroke-width:1.6;opacity:.3;animation-delay:-.20s}
@keyframes pdf-spark-lap{to{stroke-dashoffset:100}}
.share-wrap{position:relative}.share-menu{position:absolute;z-index:80;right:0;top:calc(100% + 9px);display:none;width:210px;padding:8px;border:1px solid var(--panel-brd);border-radius:14px;background:rgba(18,10,36,.97);box-shadow:0 18px 45px rgba(0,0,0,.35);backdrop-filter:blur(14px)}
.share-menu.open{display:grid}.share-menu a,.share-menu button{display:flex;align-items:center;width:100%;padding:10px;border:0;border-radius:9px;background:transparent;color:var(--txt);font:600 .8rem/1.2 system-ui,sans-serif;text-decoration:none;cursor:pointer}.share-menu a:hover,.share-menu button:hover{background:rgba(124,58,237,.16)}
html[data-theme="light"] .share-menu{background:rgba(255,255,255,.98);box-shadow:0 18px 42px rgba(62,42,100,.18)}
.discussion-prompt{margin:24px 0 20px;padding:16px 17px;border-left:3px solid var(--v2);border-radius:0 12px 12px 0;background:rgba(124,58,237,.07);color:var(--muted);line-height:1.65}.discussion-prompt b{color:var(--txt)}
html[data-theme="light"] .discussion-prompt{background:rgba(124,58,237,.05)}
.engagement-head{display:flex;align-items:center;justify-content:space-between;gap:14px}.engagement-head h2{margin:0 0 14px;font:700 1.25rem/1.3 Georgia,serif;color:var(--txt)}
.comments{display:grid;gap:10px}.comments-empty{margin:0;padding:14px 15px;color:var(--muted);font-size:.86rem;border:1px dashed var(--panel-brd);border-radius:13px}
.comment{padding:14px 15px;border:1px solid var(--panel-brd);border-radius:13px;background:rgba(255,255,255,.025)}
html[data-theme="light"] .comment{background:rgba(124,58,237,.025)}
.comment-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:6px;font-size:.74rem}.comment-author{font-weight:800;color:var(--txt)}.comment-time{color:var(--muted)}.comment p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere}
.comment-form{display:grid;gap:10px;margin-top:16px;padding:16px;border:1px solid var(--panel-brd);border-radius:14px;background:rgba(124,58,237,.045)}
.comment-form input,.comment-form textarea{box-sizing:border-box;width:100%;border:1px solid var(--panel-brd);border-radius:10px;background:rgba(10,7,19,.46);color:var(--txt);font:inherit;padding:11px 12px;outline:none}.comment-form textarea{min-height:104px;resize:vertical}.comment-form input:focus,.comment-form textarea:focus{border-color:rgba(217,70,239,.62);box-shadow:0 0 0 3px rgba(217,70,239,.09)}
html[data-theme="light"] .comment-form{background:rgba(124,58,237,.035)}html[data-theme="light"] .comment-form input,html[data-theme="light"] .comment-form textarea{background:#fff}
.comment-form .btn{justify-self:start;min-height:44px}.form-status{min-height:1.35em;margin:0;color:var(--muted);font-size:.82rem}
.reader-signoff{margin:22px 0 0;padding-top:20px;border-top:1px solid var(--panel-brd);color:var(--muted);line-height:1.7}.reader-signoff b{display:block;margin-top:7px;color:var(--txt)}
.privacy-note{margin:12px 0 0;color:var(--muted);font-size:.76rem;opacity:.78}
.captcha-gate{position:fixed;z-index:1200;inset:0;display:grid;place-items:center;padding:20px;background:rgba(5,3,12,.72);backdrop-filter:blur(8px)}.captcha-gate[hidden]{display:none}
.captcha-card{position:relative;width:min(430px,100%);padding:26px;border:1px solid rgba(168,120,255,.4);border-radius:20px;background:var(--bg2);box-shadow:0 28px 80px rgba(0,0,0,.48)}html[data-theme="light"] .captcha-card{background:#fff;box-shadow:0 28px 70px rgba(62,42,100,.25)}
.captcha-card h2{margin:0 42px 8px 0;font:700 1.35rem/1.25 Georgia,serif}.captcha-card p{margin:0 0 18px;color:var(--muted);line-height:1.55}.captcha-close{position:absolute;right:14px;top:12px;width:44px;height:44px;border:1px solid var(--panel-brd);border-radius:50%;background:transparent;color:var(--txt);font-size:1.5rem;cursor:pointer}.captcha-status{min-height:1.4em;margin:12px 0 0!important;color:var(--muted);font-size:.82rem}
@media(min-width:821px){#bt .preview-actions{flex-wrap:nowrap}}
@media(max-width:820px){.blog-interactions{padding:18px}.article-actions .pdf-tech{order:-1;width:100%}.article-actions .pdf-links{order:-1;width:100%}.article-actions .pdf-links .pdf-tech{width:100%;min-width:0}.preview-actions .pdf-tech,.top-post-actions .pdf-tech{width:100%}.top-post-actions .pdf-links{width:100%}.top-post-actions .pdf-links .pdf-tech{width:100%;min-width:0}.pdf-menu{left:0;width:min(270px,calc(100vw - 36px))}.top-post-actions{padding-inline:4px}.material-actions{padding-left:18px}.share-menu{left:0;right:auto}.action-btn{min-height:46px}.captcha-card{padding:22px 18px}}
@media(max-width:420px){#bf .preview-actions{grid-template-columns:1fr}#bf .preview-actions .reaction-pair,#bf .preview-actions .share-wrap{justify-self:start}}
@media(prefers-reduced-motion:reduce){.pdf-spark{animation:none}.pdf-spark.spark-2,.pdf-spark.spark-3{display:none}.action-btn{transition:none}}