:root{
  --bg:#070b14;
  --bg-soft:#0a101e;
  --panel:rgba(255,255,255,0.028);
  --panel-strong:rgba(255,255,255,0.05);
  --line:rgba(133,183,235,0.14);
  --line-strong:rgba(133,183,235,0.28);
  --text:#e8eefb;
  --muted:#8fa3c4;
  --faint:#5d7194;
  --blue:#4da3ff;
  --teal:#2dd4a7;
  --purple:#9d8cff;
  --mono:'JetBrains Mono',monospace;
  --border-radius-lg:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
}
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(133,183,235,0.035) 1px,transparent 1px),linear-gradient(90deg,rgba(133,183,235,0.035) 1px,transparent 1px);
  background-size:56px 56px;
}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;line-height:1.15}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px;position:relative;z-index:2}

nav.topnav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(7,11,20,0.72);
  border-bottom:1px solid var(--line);
}
.nav-inner{max-width:1120px;margin:0 auto;padding:16px 28px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{font-family:var(--mono);font-size:14px;color:var(--teal);white-space:nowrap}
.logo span{color:var(--faint)}
.nav-links{display:flex;gap:24px;font-size:13.5px;color:var(--muted);flex-wrap:wrap}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--blue)}
.nav-cta{font-family:var(--mono);font-size:12.5px;color:var(--blue);border:1px solid rgba(77,163,255,0.4);padding:7px 16px;border-radius:8px;transition:.25s;white-space:nowrap}
.nav-cta:hover{background:rgba(77,163,255,0.12)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:5px 10px;color:var(--text);font-size:17px;line-height:1;cursor:pointer}

header.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
#pipeline{position:absolute;inset:0;width:100%;height:100%}
.hero-fade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,11,20,0.92) 0%,rgba(7,11,20,0.55) 45%,rgba(7,11,20,0.15) 100%)}
.hero-content{position:relative;z-index:3;max-width:1120px;margin:0 auto;padding:120px 28px 80px;width:100%}
.kicker{font-family:var(--mono);font-size:13px;color:var(--teal);letter-spacing:1px;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.kicker::before{content:'';width:34px;height:1px;background:var(--teal)}
.hero-content h1{font-size:clamp(38px,5.6vw,68px);font-weight:600;max-width:13ch;margin-bottom:22px}
.hero-content h1 em{font-style:normal;color:var(--blue)}
.hero-sub{color:var(--muted);font-size:17.5px;max-width:56ch;margin-bottom:36px}
.hero-sub b{color:var(--text);font-weight:500}
.btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{font-family:var(--mono);font-size:13.5px;padding:13px 26px;border-radius:10px;transition:.25s;display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.btn-fill{background:var(--blue);color:#04162e;font-weight:500;border:none}
.btn-fill:hover{background:#6db4ff;transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--muted);background:transparent}
.btn-ghost:hover{color:var(--text);border-color:var(--blue)}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:11px;color:var(--faint);letter-spacing:2px;z-index:3;animation:bob 2.4s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

header.subhero{position:relative;padding:170px 0 70px;border-bottom:1px solid var(--line);background:var(--bg-soft);overflow:hidden;z-index:1}
.subhero h1{font-size:clamp(32px,4.4vw,54px);font-weight:600;margin-bottom:16px}
.subhero h1 em{font-style:normal;color:var(--blue)}
.subhero .hero-sub{margin-bottom:0}

.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-soft);position:relative;z-index:2}
.stats-grid{max-width:1120px;margin:0 auto;padding:0 28px;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.stat{padding:34px 22px;border-left:1px solid var(--line)}
.stat:first-child{border-left:none}
.stat .num{font-family:'Space Grotesk';font-size:34px;font-weight:600;color:var(--text)}
.stat .num i{font-style:normal;color:var(--teal)}
.stat .lbl{font-size:13px;color:var(--faint);margin-top:4px}

section{padding:100px 0;position:relative;z-index:2}
section.alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:50px}
.sec-tag{font-family:var(--mono);font-size:12.5px;color:var(--blue);letter-spacing:1.5px}
.sec-head h2{font-size:clamp(28px,3.4vw,42px);font-weight:600;margin-top:10px}
.sec-head p{color:var(--muted);max-width:64ch;margin-top:14px}
.sec-head .sec-link{font-family:var(--mono);font-size:13px;color:var(--teal);display:inline-block;margin-top:14px}
.sec-head .sec-link:hover{text-decoration:underline}

.dash{background:var(--bg-soft);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.dash-bar{display:flex;align-items:center;gap:10px;padding:13px 20px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12px;color:var(--faint)}
.dot{width:9px;height:9px;border-radius:50%}
.live{margin-left:auto;display:flex;align-items:center;gap:7px;color:var(--teal)}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--teal);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(45,212,167,0.5)}70%{box-shadow:0 0 0 9px rgba(45,212,167,0)}100%{box-shadow:0 0 0 0 rgba(45,212,167,0)}}
.dash-body{display:grid;grid-template-columns:240px 1fr}
.dash-side{border-right:1px solid var(--line);padding:22px;display:flex;flex-direction:column;gap:14px}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.tile .t-lbl{font-size:11.5px;font-family:var(--mono);color:var(--faint);letter-spacing:.5px}
.tile .t-val{font-family:'Space Grotesk';font-size:26px;font-weight:600;margin-top:2px}
.tile .t-val.teal{color:var(--teal)}.tile .t-val.blue{color:var(--blue)}.tile .t-val.purple{color:var(--purple)}
.dash-main{padding:22px;min-height:330px}
#dashchart{width:100%;height:330px;display:block}
@media(max-width:860px){.dash-body{grid-template-columns:1fr}.dash-side{flex-direction:row;border-right:none;border-bottom:1px solid var(--line);overflow-x:auto}.tile{min-width:150px}}

.timeline{position:relative;margin-top:10px}
.timeline::before{content:'';position:absolute;left:7px;top:6px;bottom:6px;width:1px;background:linear-gradient(var(--blue),var(--teal),transparent)}
.job{position:relative;padding:0 0 56px 44px}
.job:last-child{padding-bottom:0}
.job::before{content:'';position:absolute;left:0;top:7px;width:15px;height:15px;border-radius:50%;background:var(--bg);border:2px solid var(--blue)}
.job.teal::before{border-color:var(--teal)}
.job .dates{font-family:var(--mono);font-size:12.5px;color:var(--teal)}
.job h3{font-size:21px;margin:7px 0 2px}
.job .org{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.job ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.job li{color:var(--muted);font-size:15px;padding-left:20px;position:relative}
.job li::before{content:'▸';position:absolute;left:0;color:var(--blue)}
.job li b{color:var(--text);font-weight:500}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);background:var(--panel-strong)}
.card canvas{width:100%;height:90px;display:block;border-bottom:1px solid var(--line)}
.card-body{padding:22px 24px 26px}
.card .yr{font-family:var(--mono);font-size:11.5px;color:var(--teal)}
.card h3{font-size:18.5px;margin:8px 0 10px}
.card p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.card .impact{font-size:13.5px;color:var(--teal);font-family:var(--mono);margin:-6px 0 14px}
.tags{display:flex;flex-wrap:wrap;gap:7px}
.tag{font-family:var(--mono);font-size:11px;color:var(--blue);background:rgba(77,163,255,0.09);border:1px solid rgba(77,163,255,0.22);padding:4px 10px;border-radius:999px}

.cred-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.cred{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;transition:.3s}
.cred:hover{border-color:var(--line-strong)}
.cred .code{font-family:var(--mono);font-size:13px;color:var(--teal)}
.cred h3{font-size:16.5px;margin:6px 0 4px}
.cred p{font-size:13px;color:var(--faint)}

.pubs{display:flex;flex-direction:column;gap:16px}
.pub{display:flex;gap:20px;align-items:baseline;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px 24px;transition:.3s}
.pub:hover{border-color:var(--line-strong)}
.pub .yr{font-family:var(--mono);font-size:12.5px;color:var(--teal);white-space:nowrap}
.pub h3{font-size:16.5px;font-weight:500}
.pub p{color:var(--muted);font-size:14px;margin-top:3px}
.pub-links{display:flex;gap:16px;flex-wrap:wrap;margin-top:10px;font-family:var(--mono);font-size:12px}
.pub-links a{color:var(--blue)}
.pub-links a:hover{text-decoration:underline}

.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}
.skill-group{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px}
.skill-group .skill-kicker{font-family:var(--mono);font-size:11px;color:var(--faint);letter-spacing:1px}
.skill-group h3{font-size:17px;margin:6px 0 10px}
.skill-group p{color:var(--muted);font-size:14px;margin-bottom:16px}
.level{height:4px;background:rgba(133,183,235,0.12);border-radius:2px;overflow:hidden}
.level i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--teal));border-radius:2px;transition:width 1.4s cubic-bezier(.2,.7,.3,1)}
.in .level i{width:var(--level)}
.level-lbl{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--faint);margin-top:7px}

.filter-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:36px}
.filter-chip{font-family:var(--mono);font-size:12px;color:var(--muted);background:transparent;border:1px solid var(--line);padding:7px 16px;border-radius:999px;cursor:pointer;transition:.2s}
.filter-chip:hover{color:var(--text);border-color:var(--line-strong)}
.filter-chip.active{color:var(--teal);border-color:var(--teal);background:rgba(45,212,167,0.08)}

.art-list{display:flex;flex-direction:column}
.art-row{display:grid;grid-template-columns:110px 1fr auto;gap:22px;align-items:baseline;padding:22px 6px;border-bottom:1px solid var(--line);transition:.25s}
.art-row:hover{background:var(--panel);padding-left:14px}
.art-row .a-date{font-family:var(--mono);font-size:12px;color:var(--faint)}
.art-row h3{font-size:16.5px;font-weight:500}
.art-row .a-cat{font-family:var(--mono);font-size:11px;color:var(--teal);white-space:nowrap}
.art-row.hidden{display:none}
@media(max-width:700px){.art-row{grid-template-columns:1fr;gap:6px}}

.book-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.book{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.book:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.book .cover{height:150px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13px;border-bottom:1px solid var(--line);padding:20px;text-align:center;line-height:1.5}
.book .cover.c1{background:rgba(77,163,255,0.1);color:var(--blue)}
.book .cover.c2{background:rgba(45,212,167,0.1);color:var(--teal)}
.book .cover.c3{background:rgba(157,140,255,0.1);color:var(--purple)}
.book .cover.c4{background:rgba(255,184,108,0.08);color:#ffb86c}
.book .card-body{flex:1;display:flex;flex-direction:column}
.book .yr{font-family:var(--mono);font-size:11.5px;color:var(--teal)}
.book h3{font-size:16.5px;margin:8px 0 8px}
.book p{color:var(--muted);font-size:13.5px;margin-bottom:16px;flex:1}

.feature-panel{background:var(--bg-soft);border:1px solid var(--line);border-radius:18px;padding:40px;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.feature-panel .f-tag{font-family:var(--mono);font-size:12px;color:var(--teal);letter-spacing:1px}
.feature-panel h2{font-size:clamp(26px,3vw,38px);margin:12px 0 16px}
.feature-panel p{color:var(--muted);font-size:15.5px;margin-bottom:14px}
.feature-facts{display:flex;flex-direction:column;gap:14px}
.feature-facts .ff{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 20px}
.feature-facts .ff b{display:block;font-family:var(--mono);font-size:12px;color:var(--teal);letter-spacing:.5px;font-weight:500;margin-bottom:3px}
.feature-facts .ff span{color:var(--muted);font-size:14px}
@media(max-width:820px){.feature-panel{grid-template-columns:1fr}}

.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.g-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.3s}
.g-card:hover{border-color:var(--line-strong)}
.g-media{height:160px;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);background:repeating-linear-gradient(45deg,rgba(133,183,235,0.04),rgba(133,183,235,0.04) 12px,transparent 12px,transparent 24px);font-family:var(--mono);font-size:12px;color:var(--faint)}
.g-card .card-body{padding:20px 22px}
.g-card h3{font-size:16.5px;margin-bottom:8px}
.g-card p{color:var(--muted);font-size:13.5px}

.recog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.recog{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;transition:.3s}
.recog:hover{border-color:var(--line-strong)}
.recog .r-yr{font-family:var(--mono);font-size:11.5px;color:var(--teal)}
.recog h3{font-size:16.5px;margin:7px 0 7px}
.recog p{color:var(--muted);font-size:13.5px}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr}}
.contact-links{display:flex;flex-direction:column;gap:12px;margin-top:28px}
.contact-links a{font-family:var(--mono);font-size:14px;color:var(--blue);display:flex;align-items:center;gap:10px}
.contact-links a:hover{text-decoration:underline}
.form-panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:32px}
.field{display:block;margin-bottom:18px}
.field span{display:block;font-family:var(--mono);font-size:12px;color:var(--faint);margin-bottom:7px;letter-spacing:.5px}
.field input,.field textarea{width:100%;background:rgba(7,11,20,0.6);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--text);font-family:'Inter',sans-serif;font-size:14.5px;transition:.2s}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(77,163,255,0.15)}
.form-note{font-size:12.5px;color:var(--faint);margin-top:14px}

footer.site-footer{border-top:1px solid var(--line);padding:90px 0 60px;text-align:center;position:relative;z-index:2}
footer.site-footer .kicker{justify-content:center}
footer.site-footer .kicker::after{content:'';width:34px;height:1px;background:var(--teal)}
footer.site-footer h2{font-size:clamp(30px,4vw,48px);margin-bottom:18px}
footer.site-footer>.wrap>p{color:var(--muted);max-width:48ch;margin:0 auto 36px}
.foot-links{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;font-family:var(--mono);font-size:13px;color:var(--muted);margin-top:46px}
.foot-links a:hover{color:var(--teal)}
.copyright{margin-top:50px;font-size:12px;color:var(--faint);font-family:var(--mono);max-width:72ch;margin-left:auto;margin-right:auto}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media(max-width:760px){
  .nav-inner{gap:10px}
  .nav-toggle{display:inline-flex}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:16px;background:rgba(7,11,20,0.98);backdrop-filter:blur(14px);padding:18px 28px 22px;border-bottom:1px solid var(--line);font-size:15.5px}
  .nav-links.open{display:flex}
  .nav-links .theme-ctl{margin:6px 0 0!important}
}

.theme-ctl{display:flex;gap:4px;margin-left:auto;margin-right:14px}
.theme-ctl button{font-family:var(--mono);font-size:12px;color:var(--muted);background:transparent;border:1px solid var(--line);padding:5px 11px;border-radius:7px;cursor:pointer;transition:.2s}
.theme-ctl button:hover{color:var(--text)}
.theme-ctl button.on{color:var(--teal);border-color:var(--teal)}
.nav-inner .nav-cta{margin-left:0}

/* hero is always a dark photo banner — keep its text light in every theme */
.hero-content .kicker{color:#2dd4a7}
.hero-content h1{color:#eef2fb}
.hero-content h1 em{color:#6db4ff}
.hero-content .hero-sub{color:#b6c5dd}
.hero-content .hero-sub b{color:#f3f6fc}

/* ===================== LIGHT THEME ===================== */
html[data-theme="light"]{--bg:#e9edf4;--bg-soft:#ffffff;--panel:#f4f6fb;--panel-strong:#e9eef7;--line:rgba(13,40,90,0.13);--line-strong:rgba(13,40,90,0.26);--text:#0f1f33;--muted:#46597a;--faint:#73849f;--blue:#1257c8;--teal:#0a8a66;--purple:#5f4dc7}
html[data-theme="light"] nav.topnav{background:rgba(255,255,255,0.9);border-bottom:1px solid rgba(13,40,90,0.1)}
html[data-theme="light"] .logo{color:#0a8a66}
html[data-theme="light"] .nav-links a{color:#46597a}
html[data-theme="light"] .nav-links a:hover{color:#0f1f33}
html[data-theme="light"] .nav-links a.active{color:#1257c8}
html[data-theme="light"] body::before{background-image:linear-gradient(rgba(20,60,120,0.04) 1px,transparent 1px),linear-gradient(90deg,rgba(20,60,120,0.04) 1px,transparent 1px)}
html[data-theme="light"] section.alt,html[data-theme="light"] .stats,html[data-theme="light"] .cert-marquee{background:#ffffff}
html[data-theme="light"] .card,html[data-theme="light"] .kpi-card,html[data-theme="light"] .ws-card,html[data-theme="light"] .pub-card,html[data-theme="light"] .cred,html[data-theme="light"] .recog,html[data-theme="light"] .skill-group,html[data-theme="light"] .cap-matrix,html[data-theme="light"] .dash,html[data-theme="light"] .model-wrap,html[data-theme="light"] .form-panel,html[data-theme="light"] .pg-card,html[data-theme="light"] .pg-summary,html[data-theme="light"] .book,html[data-theme="light"] .g-card,html[data-theme="light"] .recog,html[data-theme="light"] .lib-search input{box-shadow:0 10px 26px -16px rgba(13,40,90,0.3)}
html[data-theme="light"] .btn-fill{color:#ffffff}

/* ===================== HIGH-CONTRAST THEME ===================== */
html[data-theme="contrast"]{--bg:#000000;--bg-soft:#080808;--panel:#0d0d0d;--panel-strong:#161616;--line:#9a9a9a;--line-strong:#ffffff;--text:#ffffff;--muted:#ffffff;--faint:#ffd400;--blue:#3ad6ff;--teal:#ffd400;--purple:#ff7ad9}
html[data-theme="contrast"] nav.topnav{background:#000;border-bottom:2px solid #ffffff}
html[data-theme="contrast"] body::before{display:none}
html[data-theme="contrast"] section{border-top:2px solid #ffffff}
html[data-theme="contrast"] section.alt{background:#0b0b0b}
html[data-theme="contrast"] .stats,html[data-theme="contrast"] .cert-marquee{background:#0b0b0b;border-top:2px solid #fff;border-bottom:2px solid #fff}
html[data-theme="contrast"] footer.site-footer{border-top:2px solid #fff}
html[data-theme="contrast"] .card,html[data-theme="contrast"] .kpi-card,html[data-theme="contrast"] .ws-card,html[data-theme="contrast"] .pub-card,html[data-theme="contrast"] .cred,html[data-theme="contrast"] .recog,html[data-theme="contrast"] .skill-group,html[data-theme="contrast"] .dash,html[data-theme="contrast"] .model-wrap,html[data-theme="contrast"] .pg-card,html[data-theme="contrast"] .pg-summary,html[data-theme="contrast"] .visual,html[data-theme="contrast"] .form-panel,html[data-theme="contrast"] .book,html[data-theme="contrast"] .g-card{border:2px solid #ffffff}

/* ============================================================
   DEPTH & ELEVATION — surfaces lift off the page in every theme
   ============================================================ */
/* stronger dark-mode surfaces so sections & tiles separate */
:root{--bg-soft:#0d1422;--panel:rgba(255,255,255,0.045);--panel-strong:rgba(255,255,255,0.08)}

/* base tile elevation */
.card,.kpi-card,.ws-card,.pub-card,.skill-group,.cred,.recog,.book,.g-card,.dash,.model-wrap,.visual,.pg-card,.pg-summary,.form-panel,.feature-panel,.quote-card,.cnt,.lib-search input{box-shadow:0 8px 26px -12px rgba(0,0,0,0.7)}
.pub-vp,.ws-viewport{box-shadow:0 16px 44px -20px rgba(0,0,0,0.75)}

/* interactive tiles elevate on hover */
.card,.book,.g-card,.cred,.recog,.skill-group{transition:transform .25s,box-shadow .25s,border-color .25s,background .25s}
.card:hover,.book:hover,.g-card:hover,.cred:hover,.recog:hover,.skill-group:hover{transform:translateY(-4px);box-shadow:0 20px 46px -14px rgba(0,0,0,0.85);border-color:var(--line-strong)}

/* header / footer become distinct floating layers */
nav.topnav{box-shadow:0 3px 16px -7px rgba(0,0,0,0.65)}
footer.site-footer{background:var(--bg-soft);box-shadow:0 -3px 20px -10px rgba(0,0,0,0.5)}

/* nav controls are pressable; selected sits "in" */
.nav-cta,.theme-ctl button{box-shadow:0 2px 9px -4px rgba(0,0,0,0.55)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 7px 18px -6px rgba(0,0,0,0.65)}
.theme-ctl button.on{box-shadow:inset 0 0 0 1px var(--teal),0 2px 9px -3px rgba(0,0,0,0.5)}

/* ---------------- LIGHT THEME depth ---------------- */
html[data-theme="light"] .card,html[data-theme="light"] .kpi-card,html[data-theme="light"] .ws-card,html[data-theme="light"] .pub-card,html[data-theme="light"] .skill-group,html[data-theme="light"] .cred,html[data-theme="light"] .recog,html[data-theme="light"] .book,html[data-theme="light"] .g-card,html[data-theme="light"] .dash,html[data-theme="light"] .model-wrap,html[data-theme="light"] .visual,html[data-theme="light"] .pg-card,html[data-theme="light"] .pg-summary,html[data-theme="light"] .form-panel,html[data-theme="light"] .feature-panel,html[data-theme="light"] .quote-card,html[data-theme="light"] .cnt,html[data-theme="light"] .lib-search input{box-shadow:0 10px 28px -14px rgba(13,40,90,0.22);border-color:rgba(13,40,90,0.12)}
html[data-theme="light"] .pub-vp,html[data-theme="light"] .ws-viewport{box-shadow:0 18px 44px -20px rgba(13,40,90,0.26)}
html[data-theme="light"] .card:hover,html[data-theme="light"] .book:hover,html[data-theme="light"] .g-card:hover,html[data-theme="light"] .cred:hover,html[data-theme="light"] .recog:hover,html[data-theme="light"] .skill-group:hover{box-shadow:0 22px 48px -16px rgba(13,40,90,0.34);background:#ffffff;border-color:rgba(13,40,90,0.2)}

/* light header — white floating bar, BOLDER, darker nav text */
html[data-theme="light"] nav.topnav{background:#ffffff;box-shadow:0 5px 20px -8px rgba(13,40,90,0.2);border-bottom:1px solid rgba(13,40,90,0.08)}
html[data-theme="light"] .logo{color:#0a8a66;font-weight:600}
html[data-theme="light"] .nav-links a{color:#1a2c47;font-weight:500}
html[data-theme="light"] .nav-links a:hover{color:#06101f}
html[data-theme="light"] .nav-links a.active{color:#0c47a8;font-weight:600}
html[data-theme="light"] .nav-cta{color:#0c47a8;border-color:rgba(18,87,200,0.4);box-shadow:0 2px 11px -4px rgba(13,40,90,0.22)}
html[data-theme="light"] .theme-ctl button{background:#f1f4fa;border-color:rgba(13,40,90,0.16);color:#46597a;box-shadow:0 1px 6px -3px rgba(13,40,90,0.2)}
html[data-theme="light"] .theme-ctl button.on{color:#0a8a66;border-color:#0a8a66;background:#ffffff}

/* light footer — distinct tinted layer floating above the page */
html[data-theme="light"] footer.site-footer{background:#f1f4fa;box-shadow:0 -7px 24px -10px rgba(13,40,90,0.16);border-top:1px solid rgba(13,40,90,0.1)}
html[data-theme="light"] section.alt{background:#fbfcff}

/* ---------------- DARK THEME: stronger text + lifted, distinct menu ---------------- */
:root{--text:#eef3fc;--muted:#b3c4dd;--faint:#8497b8}
html:not([data-theme]) nav.topnav{background:rgba(14,21,36,0.92);border-bottom:1px solid rgba(133,183,235,0.16);box-shadow:0 7px 24px -8px rgba(0,0,0,0.85)}
html:not([data-theme]) .logo{color:#3fe0b0}
html:not([data-theme]) .nav-links a{color:#c6d4ea;font-weight:500}
html:not([data-theme]) .nav-links a:hover{color:#ffffff}
html:not([data-theme]) .nav-links a.active{color:#6db4ff;font-weight:600}
html:not([data-theme]) .nav-cta{background:rgba(77,163,255,0.1);color:#9ecbff;box-shadow:0 3px 13px -4px rgba(0,0,0,0.85)}
html:not([data-theme]) .theme-ctl button{background:rgba(255,255,255,0.05);border-color:rgba(133,183,235,0.22)}
html:not([data-theme]) footer.site-footer{background:#0f1727;box-shadow:0 -6px 24px -10px rgba(0,0,0,0.7);border-top:1px solid rgba(133,183,235,0.14)}

/* ---------------- LIGHT FOOTER: distinct dark-navy band ---------------- */
html[data-theme="light"] footer.site-footer{background:#0e1c30;border-top:1px solid rgba(13,40,90,0.25);box-shadow:0 -10px 34px -14px rgba(13,40,90,0.34);color:#c6d4ea}
html[data-theme="light"] footer.site-footer h2{color:#f3f6fc}
html[data-theme="light"] footer.site-footer .kicker{color:#3fe0b0}
html[data-theme="light"] footer.site-footer .kicker::before,html[data-theme="light"] footer.site-footer .kicker::after{background:#3fe0b0}
html[data-theme="light"] footer.site-footer>.wrap>p{color:#aebfd8}
html[data-theme="light"] footer.site-footer .copyright{color:#8297b8}
html[data-theme="light"] footer.site-footer .foot-links a{color:#aebfd8}
html[data-theme="light"] footer.site-footer .foot-links a:hover{color:#ffffff}

/* ---------------- HOVER-LIFT: buttons & nav items react on hover ---------------- */
.btn,.nav-cta,.cta,.ws-btn,.c3d-btn,.b3d-btn,.lib-sort,.theme-ctl button,.foot-ico{transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn:hover,.nav-cta:hover,.cta:hover,.ws-btn:hover,.c3d-btn:hover,.b3d-btn:hover,.lib-sort:hover,.theme-ctl button:hover{transform:translateY(-2px);box-shadow:0 8px 20px -6px rgba(0,0,0,0.6)}
.nav-links a{transition:transform .18s ease,color .18s ease,text-shadow .18s ease;display:inline-block}
.nav-links a:hover{transform:translateY(-2px)}
.lib-chip,.filter-chip,.yb{transition:transform .18s ease,background .2s,color .2s,border-color .2s,box-shadow .2s}
.lib-chip:hover,.filter-chip:hover,.yb:hover{transform:translateY(-2px);box-shadow:0 6px 16px -6px rgba(0,0,0,0.5)}

/* ---------------- HERO: crisp photos + shadowed text halo ---------------- */
.hero-content h1{text-shadow:0 2px 22px rgba(0,0,0,0.6),0 1px 2px rgba(0,0,0,0.5)}
.hero-content .hero-sub{text-shadow:0 1px 12px rgba(0,0,0,0.55)}
.hero-content .kicker{text-shadow:0 1px 8px rgba(0,0,0,0.5)}
.hero-content .hero-sub b{text-shadow:0 1px 10px rgba(0,0,0,0.6)}
.hero-slides img{filter:contrast(1.05) saturate(1.1)}
html[data-theme="light"] .hero-slides img{filter:contrast(1.09) saturate(1.18) brightness(1.07)}
html[data-theme="light"] .hero-shade{background:linear-gradient(90deg,rgba(6,10,18,0.95) 0%,rgba(6,10,18,0.78) 36%,rgba(6,10,18,0.28) 68%,rgba(6,10,18,0.46) 100%),linear-gradient(0deg,rgba(6,10,18,0.82) 0%,rgba(6,10,18,0.1) 32%,rgba(6,10,18,0.3) 100%)}

/* ---------------- FOOTER icon links ---------------- */
.foot-ico{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12.5px;color:var(--muted);border:1px solid var(--line);padding:8px 15px;border-radius:999px;text-decoration:none}
.foot-ico:hover{color:var(--text);border-color:var(--line-strong);background:var(--panel)}
.foot-ico svg{width:16px;height:16px;fill:currentColor;flex-shrink:0}
html[data-theme="light"] footer.site-footer .foot-ico{border-color:rgba(133,183,235,0.24);color:#aebfd8}
html[data-theme="light"] footer.site-footer .foot-ico:hover{background:rgba(255,255,255,0.07);color:#fff}

/* ---------------- PAGE LOADER (data-refresh themed) ---------------- */
.pgload{position:fixed;inset:0;z-index:99999;background:#070b14;display:flex;align-items:center;justify-content:center;transition:opacity .5s ease,visibility .5s ease}
.pgload.done{opacity:0;visibility:hidden}
.pgl-bar{width:240px;height:3px;background:rgba(133,183,235,0.16);border-radius:2px;overflow:hidden;margin:0 auto 18px;position:relative}
.pgl-bar i{position:absolute;left:-44%;top:0;height:100%;width:44%;background:linear-gradient(90deg,#4da3ff,#2dd4a7);border-radius:2px;animation:pglslide 1.1s ease-in-out infinite}
@keyframes pglslide{0%{left:-44%}100%{left:100%}}
.pgl-text{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:2.5px;color:#2dd4a7;text-align:center}
.pgl-text b{color:#85b7eb;font-weight:400}