/* Smooth cross-page transitions (Chrome 126+, degrades gracefully) */
@media (prefers-reduced-motion:no-preference){
  @view-transition{navigation:auto}
  ::view-transition-old(root){animation:fadeOut .18s ease}
  ::view-transition-new(root){animation:fadeIn .22s ease}
  @keyframes fadeOut{from{opacity:1}to{opacity:0}}
  @keyframes fadeIn{from{opacity:0}to{opacity:1}}
}

:root{
  --bg:#eef0eb;--surface:#ffffff;--surface2:#f5f7f3;
  --border:rgba(0,0,0,.08);--border2:rgba(0,0,0,.14);
  --text:#0e1510;--muted:#536159;--faint:#92a49c;
  --accent:#1a8a60;--accent-bg:rgba(26,138,96,.09);--accent-dark:#136648;
  --blue:#1a5faa;--amber:#a06820;
  --sidebar:256px;--radius:12px;
  --shadow-xs:0 1px 2px rgba(0,0,0,.06);
  --shadow-sm:0 1px 3px rgba(0,0,0,.06),0 4px 12px rgba(0,0,0,.05);
  --shadow:0 2px 8px rgba(0,0,0,.08),0 8px 28px rgba(0,0,0,.06);
  --shadow-hover:0 4px 16px rgba(0,0,0,.1),0 16px 40px rgba(0,0,0,.07);
}
[data-theme="dark"]{
  --bg:#070c18;--surface:#0d1829;--surface2:#091225;
  --border:rgba(59,130,246,.1);--border2:rgba(59,130,246,.22);
  --text:#c8dff5;--muted:#5d82a8;--faint:#1e3550;
  --accent:#3b82f6;--accent-bg:rgba(59,130,246,.1);--accent-dark:#1d4ed8;
  --blue:#60a5fa;--amber:#f59e0b;
  --shadow-xs:0 1px 2px rgba(0,0,0,.5);
  --shadow-sm:0 2px 6px rgba(0,0,0,.5),0 6px 18px rgba(0,0,0,.3);
  --shadow:0 4px 14px rgba(0,0,0,.55),0 14px 36px rgba(0,0,0,.35);
  --shadow-hover:0 6px 22px rgba(0,0,0,.6),0 22px 52px rgba(0,0,0,.4);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
b{font-weight:600}

/* ===== LAYOUT ===== */
.shell{display:grid;grid-template-columns:var(--sidebar) 1fr;grid-template-rows:auto 1fr;min-height:100vh}

/* ===== TOP BAR ===== */
.topbar{grid-column:1/-1;display:flex;align-items:center;gap:0;height:60px;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:100;box-shadow:var(--shadow-xs)}
.topbar-brand{width:var(--sidebar);flex-shrink:0;display:flex;align-items:center;gap:10px;padding:0 22px;border-right:1px solid var(--border)}
.brand-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);display:grid;place-items:center;font-family:'Sora';font-size:13px;font-weight:700;color:#fff;flex-shrink:0;box-shadow:0 2px 8px rgba(26,138,96,.35)}
.brand-name{font-family:'Sora';font-size:14px;font-weight:700;color:var(--text);letter-spacing:-.02em;white-space:nowrap}
.topbar-nav{display:flex;align-items:center;gap:1px;padding:0 12px;flex:1;overflow-x:auto}
.topbar-nav::-webkit-scrollbar{display:none}
.tnav{display:flex;align-items:center;gap:5px;font-size:14px;font-weight:500;color:var(--muted);padding:6px 11px;border-radius:8px;cursor:pointer;white-space:nowrap;border:none;background:none;transition:.18s;position:relative}
.tnav i{font-size:14px}
.tnav:hover{color:var(--text);background:var(--surface2)}
.tnav.active{color:var(--accent);font-weight:600}
.tnav.active::after{content:'';position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);width:18px;height:2.5px;border-radius:2px;background:var(--accent)}
.topbar-right{display:flex;align-items:center;gap:6px;padding:0 16px;margin-left:auto;flex-shrink:0;border-left:1px solid var(--border)}
.icon-btn{width:36px;height:36px;border-radius:9px;border:1.5px solid var(--border2);background:var(--surface2);cursor:pointer;color:var(--text);display:grid;place-items:center;font-size:18px;transition:.18s;flex-shrink:0;box-shadow:var(--shadow-xs)}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none;display:block}
.icon-btn:hover{background:var(--accent-bg);border-color:var(--accent);color:var(--accent);box-shadow:0 2px 8px rgba(26,138,96,.2)}
#lang-btn{font-family:system-ui,sans-serif;font-weight:700;font-size:13px}
#lang-btn.hi-active{color:var(--accent);border-color:var(--accent);background:var(--accent-bg)}
.menu-btn{display:none}
.topbar-nav-wrap{position:relative;flex:1;min-width:0;display:flex;align-items:center}
.topbar-nav-wrap::after{content:'';position:absolute;right:0;top:0;bottom:0;width:48px;background:linear-gradient(to right,transparent,var(--surface));pointer-events:none}

/* ===== SIDEBAR ===== */
.sidebar{width:var(--sidebar);border-right:1px solid var(--border);background:var(--surface);padding:0 0 24px;display:flex;flex-direction:column;gap:0;position:sticky;top:60px;height:calc(100vh - 60px);overflow-y:auto}
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}
.profile-card{text-align:center;background:linear-gradient(170deg,rgba(26,138,96,.13) 0%,rgba(26,138,96,.04) 60%,transparent 100%);padding:28px 20px 22px;border-bottom:1px solid var(--border)}
.av{width:112px;height:112px;border-radius:50%;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);display:grid;place-items:center;font-family:'Sora';font-size:26px;font-weight:700;color:#fff;margin:0 auto 14px;box-shadow:0 0 0 4px rgba(26,138,96,.15),0 4px 20px rgba(26,138,96,.3);object-fit:cover;filter:brightness(1.18) contrast(1.05)}
.profile-card h2{font-family:'Sora';font-size:15px;font-weight:700;letter-spacing:-.02em;margin-bottom:4px}
.profile-card .role{font-size:11px;color:var(--accent);font-weight:600;margin-bottom:4px;padding:2px 10px;display:inline-block;background:var(--accent-bg);border-radius:20px}
.profile-card .inst{font-size:11px;color:var(--muted);line-height:1.6;margin-top:6px}
.cv-btn{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;color:var(--accent);background:var(--accent-bg);border:1px solid rgba(26,138,96,.25);border-radius:20px;padding:5px 14px;margin-top:10px;transition:.15s;text-decoration:none;letter-spacing:.01em}
.cv-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.divider{height:1px;background:var(--border);margin:0 20px}
.sidebar-section{padding:16px 14px 4px}
.sidebar-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--faint);margin-bottom:8px;padding:0 6px}
.slink{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);padding:8px 10px;border-radius:9px;cursor:pointer;border:none;background:none;width:100%;text-align:left;transition:.15s}
.slink i{font-size:15px;flex-shrink:0;width:18px;text-align:center}
.slink:hover{color:var(--text);background:var(--surface2)}
.slink.active{color:var(--accent);background:var(--accent-bg);font-weight:600;box-shadow:inset 2px 0 0 var(--accent)}
/* On wide desktops (>1280px) the topbar already shows every page, so the
   sidebar drops its duplicate nav and becomes a pure identity rail.
   Below 1281px the sidebar nav stays — it holds overflow items and is the
   slide-out menu on tablet/mobile. */
@media(min-width:1281px){
  .sidebar .nav-section,
  .sidebar .nav-section + .divider{display:none}
}
.socials-row{display:flex;gap:7px;flex-wrap:wrap;padding:0 6px}
.soc-btn{width:34px;height:34px;border-radius:9px;border:1px solid var(--border);background:var(--surface2);display:grid;place-items:center;font-size:16px;color:var(--muted);cursor:pointer;transition:.15s;position:relative}
.soc-btn:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-bg);transform:translateY(-2px);box-shadow:0 2px 8px rgba(26,138,96,.15)}
.soc-btn::after{content:attr(title);position:absolute;bottom:calc(100% + 7px);left:50%;transform:translateX(-50%);background:var(--text);color:var(--surface);font-size:11px;font-weight:500;padding:4px 8px;border-radius:6px;white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .15s;z-index:10}
.soc-btn:hover::after{opacity:1}
.contact-mini{display:flex;flex-direction:column;gap:8px;padding:0 6px}
.cmi{display:flex;align-items:flex-start;gap:8px;font-size:11.5px;color:var(--muted);line-height:1.5}
.cmi i{font-size:14px;color:var(--accent);flex-shrink:0;margin-top:1px}
.cmi a{color:var(--muted)}
.cmi a:hover{color:var(--accent)}

/* ===== MAIN CONTENT ===== */
.main{min-height:calc(100vh - 60px);background:var(--bg);padding:36px 40px}
.site-footer{text-align:center;padding:28px 24px 24px;border-top:1px solid var(--border);color:var(--faint);font-size:12px;line-height:1.8;margin-top:8px}
.site-footer a{color:var(--muted);text-decoration:none;transition:.15s}
.site-footer a:hover{color:var(--accent)}
.page{animation:fadeIn .28s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ===== PAGE HEADER ===== */
.page-hd{margin-bottom:22px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.page-tag{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);margin-bottom:8px;display:inline-flex;align-items:center;gap:6px}
.page-tag::before{content:'';width:16px;height:2px;background:var(--accent);border-radius:2px;display:inline-block}
.page-hd h1{font-family:'Sora';font-size:28px;font-weight:700;letter-spacing:-.03em;margin-bottom:8px}
.page-hd p{color:var(--muted);font-size:14px;line-height:1.75}

/* ===== CARDS ===== */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;transition:.22s;box-shadow:var(--shadow-sm)}
.card:hover{border-color:var(--border2);box-shadow:var(--shadow);transform:translateY(-1px)}
.card-grid{display:grid;gap:16px}
.card-grid.col2{grid-template-columns:1fr 1fr}
.card-grid.col3{grid-template-columns:1fr 1fr 1fr}
.card h3{font-size:15px;font-weight:600;margin-bottom:7px;display:flex;align-items:center;gap:8px}
.card h3 i{font-size:18px;color:var(--accent)}
.card p{font-size:13px;color:var(--muted);line-height:1.75}

/* ===== HOME PAGE ===== */
.home-hero{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;margin-bottom:20px;display:grid;grid-template-columns:1fr 380px;gap:32px;align-items:start;box-shadow:var(--shadow-sm);border-top:3px solid var(--accent)}
.home-hero-text h1{font-family:'Sora';font-size:28px;font-weight:700;letter-spacing:-.03em;margin-bottom:5px}
.home-hero-text .role{font-size:13px;font-weight:700;color:var(--accent);margin-bottom:3px;text-transform:uppercase;letter-spacing:.04em}
.home-hero-text .inst{font-size:13px;color:var(--muted);margin-bottom:18px}
.home-hero-text p{font-size:14px;color:var(--muted);line-height:1.8;max-width:none}
.av-lg{width:92px;height:92px;border-radius:50%;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);display:grid;place-items:center;font-family:'Sora';font-size:30px;font-weight:700;color:#fff;flex-shrink:0;box-shadow:0 0 0 4px rgba(26,138,96,.15),0 6px 20px rgba(26,138,96,.3);object-fit:cover;filter:brightness(1.18) contrast(1.05)}
.chip-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}
.chip{font-size:12px;padding:4px 12px;border-radius:20px;border:1px solid var(--border);color:var(--muted);background:var(--surface2)}
.chip.green{background:var(--accent-bg);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 30%,transparent);font-weight:500}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 14px;text-align:center;box-shadow:var(--shadow-sm);transition:.2s;position:relative;overflow:hidden}
.stat::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-dark))}
.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.stat .n{font-family:'Sora';font-size:26px;font-weight:700;color:var(--accent)}
.stat .l{font-size:11px;color:var(--muted);margin-top:4px;font-weight:500}
.section-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--faint);margin:0 0 12px}
.home-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;padding:9px 18px;border-radius:8px;cursor:pointer;border:1px solid var(--border);background:none;color:var(--text);transition:.18s}
.btn:hover{border-color:var(--border2);background:var(--surface2)}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}

/* ===== PROJECTS ===== */
.proj{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--radius);padding:22px 24px;margin-bottom:16px;transition:.22s;box-shadow:var(--shadow-sm)}
.proj:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateX(2px)}
.proj-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:8px}
.proj h3{font-size:16px;font-weight:600}
.proj-badge{font-size:11px;font-weight:700;white-space:nowrap;padding:4px 12px;border-radius:20px;background:var(--accent-bg);color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 25%,transparent)}
.proj-meta{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}
.proj-meta span{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}
.proj-meta i{color:var(--accent);font-size:14px}
.proj p{font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:14px}
.chip-sm{font-size:11px;padding:3px 10px;border-radius:6px;background:var(--surface2);border:1px solid var(--border);color:var(--muted)}

/* ===== TIMELINE ===== */
.tl{position:relative;padding-left:26px}
.tl::before{content:"";position:absolute;left:6px;top:4px;bottom:4px;width:1.5px;background:var(--border2)}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-26px;top:4px;width:13px;height:13px;border-radius:50%;background:var(--surface);border:2.5px solid var(--accent)}
.tl-item.dim::before{border-color:var(--faint)}
.tl-date{font-size:11px;font-weight:700;color:var(--accent);letter-spacing:.03em;margin-bottom:3px}
.tl-item.dim .tl-date{color:var(--faint)}
[data-theme="dark"] .tl-date{color:#93c5fd}
[data-theme="dark"] .tl-item.dim .tl-date{color:#3b5a8a}
.tl-item h3{font-size:15px;font-weight:600;margin-bottom:2px}
.tl-item p{font-size:13px;color:var(--muted);line-height:1.65}

/* ===== SKILLS ===== */
.skill-block{margin-bottom:22px}
.skill-block h4{font-size:13px;font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:8px;color:var(--text)}
.skill-block h4 i{font-size:16px;color:var(--accent)}
.skill-tags{display:flex;gap:7px;flex-wrap:wrap}
.stag{font-size:12px;padding:5px 12px;border-radius:7px;border:1px solid var(--border);color:var(--muted);background:var(--surface)}
.stag.pro{background:var(--accent-bg);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 30%,transparent)}
.stag.beg{background:var(--surface2)}

/* ===== PUBLICATIONS ===== */
.pub-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:26px}
.pub-metric{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.pub-metric::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-dark))}
.pub-metric .n{font-family:'Sora';font-size:24px;font-weight:700;color:var(--accent)}
.pub-metric .l{font-size:11px;color:var(--muted);margin-top:3px;font-weight:500}
.pub-cat-hd{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--faint);margin:28px 0 12px;display:flex;align-items:center;gap:10px}
.pub-cat-hd::after{content:"";flex:1;height:1px;background:var(--border)}
.pub-item{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;margin-bottom:8px;transition:.2s;box-shadow:var(--shadow-xs)}
.pub-item:hover{border-color:var(--accent);box-shadow:var(--shadow-sm);transform:translateX(2px)}
a.pub-item:hover .pub-title{color:var(--accent)}
.pub-ico{width:38px;height:38px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;font-size:18px}
.pub-ico.j{background:var(--accent-bg);color:var(--accent)}
.pub-ico.p{background:rgba(26,95,170,.1);color:var(--blue)}
.pub-ico.b{background:rgba(160,104,32,.1);color:var(--amber)}
.pub-title{font-size:14px;font-weight:500;color:var(--text);margin-bottom:3px;line-height:1.5;transition:.15s}
.pub-meta{font-size:12px;color:var(--muted)}
.pub-arr{margin-left:auto;font-size:16px;color:var(--faint);flex-shrink:0;align-self:center;transition:.15s}
a.pub-item:hover .pub-arr{color:var(--accent)}
.pub-link-row{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}

/* ===== AWARDS ===== */
.award-item{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:12px;transition:.22s;box-shadow:var(--shadow-sm)}
.award-item:hover{border-color:var(--border2);box-shadow:var(--shadow);transform:translateY(-1px)}
.award-ico{width:44px;height:44px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;font-size:22px}
.ai-gold{background:rgba(160,104,32,.12);color:var(--amber);box-shadow:0 2px 8px rgba(160,104,32,.15)}
.ai-green{background:var(--accent-bg);color:var(--accent);box-shadow:0 2px 8px rgba(26,138,96,.15)}
.ai-blue{background:rgba(26,95,170,.1);color:var(--blue);box-shadow:0 2px 8px rgba(26,95,170,.12)}
.award-date{font-size:11px;font-weight:600;color:var(--faint);margin-bottom:4px}
.award-item h3{font-size:14px;font-weight:600;margin-bottom:3px}
.award-item p{font-size:12px;color:var(--muted);line-height:1.65}
.award-photo{margin-top:12px;border-radius:10px;overflow:hidden;box-shadow:var(--shadow-sm)}
.award-photo picture{display:block}
.award-photo img{width:100%;height:auto;aspect-ratio:1400/722;object-fit:cover;object-position:top center;display:block}

/* ===== TEACHING ===== */
.teach-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;margin-bottom:14px;box-shadow:var(--shadow-sm);transition:.2s}
.teach-item:hover{box-shadow:var(--shadow);transform:translateY(-1px)}
.teach-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:6px}
.teach-item h3{font-size:15px;font-weight:600}
.teach-date{font-size:11px;font-weight:700;color:var(--accent);white-space:nowrap;padding:3px 10px;background:var(--accent-bg);border-radius:20px}
.teach-item .inst{font-size:12px;font-weight:500;color:var(--text);margin-bottom:8px}
.teach-item p{font-size:13px;color:var(--muted);line-height:1.7}
.teach-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.tlink{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);background:var(--accent-bg);padding:5px 13px;border-radius:20px;transition:.15s}
.tlink:hover{background:var(--accent);color:#fff}
.tlink i{font-size:14px}
.praise{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:700;color:var(--accent);background:var(--accent-bg);padding:3px 10px;border-radius:20px;border:1px solid color-mix(in srgb,var(--accent) 20%,transparent)}

/* ===== PHD GALLERY ===== */
.phd-gallery{display:flex;flex-direction:column;gap:22px}
.phd-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.22s;box-shadow:var(--shadow-sm)}
.phd-card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:var(--border2)}
.phd-card picture{display:block}
.phd-img{width:100%;display:block;border-bottom:1px solid var(--border);object-fit:contain;background:#0a0a0a;max-height:340px}
.phd-info{padding:18px 22px}
.phd-journal{font-size:11px;font-weight:700;color:var(--accent);margin-bottom:7px;text-transform:uppercase;letter-spacing:.06em}
.phd-info h3{font-size:15px;font-weight:600;line-height:1.55}

/* ===== MISC ===== */
.link-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-bottom:4px}
.lcard{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:13px 15px;font-size:13px;font-weight:500;color:var(--text);transition:.18s;box-shadow:var(--shadow-xs)}
.lcard:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.lcard i:first-child{font-size:18px;color:var(--accent);flex-shrink:0}
.lcard span{flex:1}
.lcard .arr{font-size:14px;color:var(--faint)}
.lcard:hover .arr{color:var(--accent)}
.lcard.dim{opacity:.55;cursor:default}
.music-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.music-card{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;transition:.2s;color:var(--text);box-shadow:var(--shadow-sm)}
.music-card:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow)}
.music-art{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:22px;flex-shrink:0}
.mc-calm{background:var(--accent-bg);color:var(--accent)}
.mc-energy{background:rgba(160,104,32,.1);color:var(--amber)}
.music-card h4{font-size:14px;font-weight:600;margin-bottom:2px}
.music-card p{font-size:12px;color:var(--muted)}
.music-card .arr{margin-left:auto;font-size:20px;color:var(--faint)}
.music-card:hover .arr{color:var(--accent)}

/* ===== CONTACT PAGE ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:22px}
.contact-item{display:flex;gap:13px;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm);transition:.2s}
.contact-item:hover{box-shadow:var(--shadow);transform:translateY(-1px)}
.contact-item i{font-size:22px;color:var(--accent);flex-shrink:0;margin-top:1px}
.contact-item h4{font-size:13px;font-weight:600;margin-bottom:4px}
.contact-item p,.contact-item a{font-size:13px;color:var(--muted);line-height:1.65}
.contact-item a:hover{color:var(--accent)}
.service-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ===== APP SHOWCASE ===== */
.app-cards{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:28px}
.app-card{background:var(--surface);border:2px solid var(--border);border-radius:16px;overflow:hidden;cursor:pointer;transition:.25s;box-shadow:var(--shadow-sm)}
.app-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.app-card.active{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-bg),var(--shadow)}
.app-preview{height:170px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.agni-preview{background:linear-gradient(135deg,#080e0b 0%,#0f2018 50%,#1a3a28 100%)}
.spray-preview{background:linear-gradient(135deg,#080d18 0%,#0d1a30 50%,#0d2848 100%)}
.app-preview-icon{display:flex;flex-direction:column;align-items:center;gap:12px;z-index:1}
.app-preview-icon i{font-size:52px;color:rgba(255,255,255,.18)}
.app-preview-icon span{font-family:'Sora';font-size:20px;font-weight:700;color:rgba(255,255,255,.25);letter-spacing:-.02em}
.app-preview-glow{position:absolute;width:180px;height:180px;border-radius:50%;filter:blur(48px);opacity:.25}
.agni-preview .app-preview-glow{background:#2dd48a}
.spray-preview .app-preview-glow{background:#5ba8f5}
.app-card-body{padding:22px 24px}
.app-card-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.app-card-meta h3{font-family:'Sora';font-size:17px;font-weight:700;letter-spacing:-.02em}
.app-badge{font-size:11px;font-weight:700;color:var(--accent);background:var(--accent-bg);padding:3px 10px;border-radius:20px;border:1px solid color-mix(in srgb,var(--accent) 25%,transparent)}
.app-card p{font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:18px}
.app-launch{pointer-events:none}
.app-card:hover .app-launch{background:var(--accent);color:#fff;border-color:var(--accent)}
.app-card.active .app-launch{background:var(--accent);color:#fff;border-color:var(--accent)}
.app-viewer{border:1.5px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);animation:fadeIn .22s ease}
.app-viewer-bar{display:flex;align-items:center;gap:10px;padding:10px 18px;background:var(--surface2);border-bottom:1px solid var(--border)}
.app-viewer-title{font-weight:600;font-size:14px;flex:1;display:flex;align-items:center;gap:8px}
.app-viewer-title i{color:var(--accent);font-size:16px}
.app-viewer-frame{width:100%;height:calc(100vh - 330px);min-height:520px;border:none;display:block;background:var(--bg)}

/* ===== DARK MODE OVERRIDES ===== */
[data-theme="dark"] .profile-card{background:linear-gradient(160deg,rgba(59,130,246,.1) 0%,rgba(59,130,246,.04) 55%,transparent 100%)}
[data-theme="dark"] .av{box-shadow:0 0 0 4px rgba(59,130,246,.18),0 4px 20px rgba(59,130,246,.2)}
[data-theme="dark"] .av-lg{box-shadow:0 0 0 4px rgba(59,130,246,.18),0 6px 20px rgba(59,130,246,.2)}
[data-theme="dark"] .brand-mark{background:linear-gradient(135deg,#1d4ed8 0%,#1e3a8a 100%);box-shadow:0 2px 8px rgba(59,130,246,.3)}
[data-theme="dark"] .home-hero{box-shadow:var(--shadow-sm),0 0 0 1px rgba(59,130,246,.08)}
[data-theme="dark"] .soc-btn:hover{box-shadow:0 2px 8px rgba(59,130,246,.2)}
[data-theme="dark"] .stat::before,[data-theme="dark"] .pub-metric::before{background:linear-gradient(90deg,#3b82f6,#1d4ed8)}
[data-theme="dark"] .icon-btn:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 2px 8px rgba(59,130,246,.2)}

/* ===== SIDEBAR METRICS ===== */
.stats-mini{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:0 6px}
.stat-mini{background:var(--surface2);border:1px solid var(--border);border-radius:9px;padding:10px 6px;text-align:center;transition:.18s;box-shadow:var(--shadow-xs)}
.stat-mini:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.stat-n{font-family:'Sora';font-size:17px;font-weight:700;color:var(--accent);display:block}
.stat-l{font-size:9.5px;color:var(--muted);text-transform:uppercase;font-weight:600;letter-spacing:.04em}

/* ===== RESEARCH NODE GRAPH ===== */
.home-hero-text{flex:1;min-width:0}
.hero-graph-wrap{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:8px}
.graph-info{font-size:12px;color:var(--muted);text-align:center;min-height:36px;width:320px;line-height:1.6;padding:2px 4px;transition:opacity .2s}
.gnode{cursor:pointer}
.gnode-circle,.gnode-ring,.gline{transition:all .22s ease}
.center-pulse{animation:centerpulse 3s ease-in-out infinite}
@keyframes centerpulse{0%,100%{opacity:.2}50%{opacity:.55}}

/* ===== READABILITY: larger body text ===== */
.card p,.proj p,.tl-item p,.teach-item p,.agni-feat p,.agni-desc{font-size:15px}
.page-hd p,.contact-item p,.contact-item a{font-size:15px}
.pub-title{font-size:15px}
.pub-meta{font-size:13px}
.slink{font-size:14px}
.cmi{font-size:13px}
.chip{font-size:13px}
.chip-sm{font-size:12px}
.stat .l,.pub-metric .l,.stat-l{font-size:12px}

/* ===== TEXT JUSTIFICATION ===== */
.page-hd p,.home-hero-text p,.card p,.proj p,.tl-item p,.award-item p,.contact-item p,.agni-desc,.agni-feat p{text-align:justify;overflow-wrap:break-word}
/* Hyphens only where columns are wide enough */
.card p,.proj p,.tl-item p,.award-item p,.contact-item p,.agni-desc,.agni-feat p{hyphens:auto}
.home-hero-text p{hyphens:none}
.tl-item p,.award-item p,.contact-item p{line-height:1.75}

@media(max-width:1150px){.tnav-hide-sm{display:none}}
@media(max-width:1280px){.tnav-hide-md{display:none}}

/* ===== MEDIUM DESKTOP (901px–1199px) ===== */
@media(min-width:901px) and (max-width:1199px){
  #research-graph{width:300px;height:auto}
  .graph-info{width:260px}
}

/* ===== TABLET (641px–900px) ===== */
@media(min-width:641px) and (max-width:900px){
  .shell{grid-template-columns:1fr}
  .sidebar{display:none;position:fixed;left:0;top:60px;bottom:0;z-index:200;width:280px;box-shadow:4px 0 24px rgba(0,0,0,.22)}
  .sidebar.open{display:flex}
  .menu-btn{display:flex}
  .topbar-nav-wrap{display:block}
  .main{padding:28px 32px}
  .stats-row,.pub-metrics{grid-template-columns:repeat(4,1fr)}
  .card-grid.col2{grid-template-columns:repeat(2,1fr)}
  .card-grid.col3{grid-template-columns:repeat(2,1fr)}
  .home-hero{grid-template-columns:1fr;justify-items:center;gap:20px}
  .home-hero-text{max-width:100%;width:100%}
  .home-hero-text p{max-width:100%;line-height:1.7;text-align:left}
  #research-graph{width:340px;height:auto}
  .graph-info{width:300px}
  .bottom-nav{display:none}
  .tnav-hide-sm,.tnav-hide-md{display:none}
}

/* ===== AGNICYCLE PAGE ===== */
.agni-hero{background:linear-gradient(135deg,#051a0e 0%,#0a2a18 40%,#0d1829 100%);border:1px solid rgba(34,197,94,.2);border-radius:16px;padding:40px 36px;margin-bottom:28px;position:relative;overflow:hidden}
.agni-hero::before{content:'';position:absolute;top:-60px;right:-60px;width:280px;height:280px;background:radial-gradient(circle,rgba(34,197,94,.12) 0%,transparent 70%);pointer-events:none}
.agni-badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;color:#22c55e;background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.25);padding:4px 12px;border-radius:20px;margin-bottom:16px;text-transform:uppercase;letter-spacing:.06em}
.agni-logo{display:inline-flex;align-items:center;gap:14px;margin-bottom:12px}
.agni-logo-mark{width:52px;height:52px;background:linear-gradient(135deg,#22c55e,#15803d);border-radius:14px;display:grid;place-items:center;font-size:24px;color:#fff;box-shadow:0 4px 20px rgba(34,197,94,.35);flex-shrink:0}
.agni-hero h1{font-family:'Sora';font-size:34px;font-weight:700;color:#f0fdf4;letter-spacing:-.03em}
.agni-tagline{font-size:16px;color:#86efac;font-weight:500;margin:6px 0 14px}
.agni-desc{font-size:14px;color:#6b8a79;line-height:1.8;margin-bottom:22px}
.agni-cta-row{display:flex;gap:10px;flex-wrap:wrap}
.agni-launch{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:700;padding:11px 24px;border-radius:10px;cursor:pointer;border:none;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;box-shadow:0 4px 16px rgba(34,197,94,.35);transition:.2s}
.agni-launch:hover{box-shadow:0 6px 24px rgba(34,197,94,.5);transform:translateY(-1px)}
.agni-launch i{font-size:17px}
.agni-features{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:28px}
.agni-feat{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 22px;transition:.2s}
.agni-feat:hover{border-color:rgba(34,197,94,.3);box-shadow:0 4px 16px rgba(34,197,94,.08);transform:translateY(-1px)}
.agni-feat-icon{width:40px;height:40px;background:rgba(34,197,94,.1);border-radius:10px;display:grid;place-items:center;font-size:20px;color:#22c55e;margin-bottom:12px}
.agni-feat h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px}
.agni-feat p{font-size:13px;color:var(--muted);line-height:1.7}
.agni-hero .btn{border-color:rgba(240,253,244,.28);color:#a7f3d0;background:rgba(240,253,244,.07);transition:.2s}
.agni-hero .btn:hover{border-color:rgba(240,253,244,.55);color:#f0fdf4;background:rgba(240,253,244,.14)}
.agni-tech{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 24px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.agni-tech-tag{font-size:12px;font-weight:500;color:var(--muted);background:var(--surface2);border:1px solid var(--border);border-radius:6px;padding:4px 12px}
.tnav-agni{color:#22c55e !important;border:1px solid rgba(34,197,94,.25) !important;border-radius:8px !important;font-weight:600 !important}
.tnav-agni.active,.tnav-agni:hover{background:rgba(34,197,94,.1) !important;color:#22c55e !important}
.slink-agni{color:#22c55e !important;background:rgba(34,197,94,.08) !important;border-left:2px solid #22c55e !important;font-weight:600 !important}
.slink-agni:hover,.slink-agni.active{background:rgba(34,197,94,.15) !important;color:#22c55e !important}

/* ===== ANIMATIONS ===== */
.agni-launch{animation:agni-glow 2.2s ease-in-out infinite}
@keyframes agni-glow{0%,100%{box-shadow:0 4px 16px rgba(34,197,94,.4),0 0 0 0 rgba(34,197,94,0)}55%{box-shadow:0 6px 36px rgba(34,197,94,.75),0 0 70px rgba(34,197,94,.25),0 0 0 6px rgba(34,197,94,.08)}}
[data-theme="dark"] .stat-mini:hover,[data-theme="dark"] .stat:hover{box-shadow:0 0 0 1px var(--accent),var(--shadow-sm)}

/* ===== RESPONSIVE ===== */
/* Bottom nav — mobile only */
.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:60px;background:var(--surface);border-top:1px solid var(--border);z-index:150;box-shadow:0 -2px 18px rgba(0,0,0,.13)}
.bnav{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer;color:var(--muted);font-size:10px;font-weight:500;border:none;background:none;padding:0 2px;transition:color .18s,transform .15s;-webkit-tap-highlight-color:transparent;line-height:1.2;position:relative}
.bnav i{font-size:19px;display:block;transition:transform .15s}
.bnav span{transition:font-weight .15s}
/* Active indicator — pill at top + colour + scale */
.bnav.active{color:var(--accent)}
.bnav.active i{transform:scale(1.15)}
.bnav.active span{font-weight:700}
.bnav.active::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:3px;background:var(--accent);border-radius:0 0 3px 3px}
/* AgniCycle — always tinted green, brighter + indicator when active */
.bnav-agni{color:rgba(34,197,94,.55)}
.bnav-agni.active{color:#22c55e}
.bnav-agni.active::before{background:#22c55e}
[data-theme="dark"] .bottom-nav{box-shadow:0 -2px 18px rgba(0,0,0,.4)}

/* ===== FULLSCREEN PROMPT ===== */
#fs-prompt{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--surface);border:1px solid var(--border2);border-radius:40px;padding:10px 12px 10px 18px;display:flex;align-items:center;gap:10px;box-shadow:0 8px 32px rgba(0,0,0,.45),0 0 0 1px rgba(59,130,246,.12);z-index:1500;font-size:13px;color:var(--muted);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .4s ease,transform .4s cubic-bezier(.34,1.56,.64,1)}
#fs-prompt.show{opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(0)}
#fs-prompt svg{flex-shrink:0;opacity:.7}
#fs-prompt-no{background:none;border:none;color:var(--faint);font-size:16px;cursor:pointer;padding:2px 6px;line-height:1;font-family:inherit;transition:.15s}
#fs-prompt-no:hover{color:var(--muted)}
@media(max-width:640px){
  .shell{grid-template-columns:1fr}
  .topbar-brand{width:auto}
  .topbar-nav-wrap{display:none}
  .sidebar{display:none;position:fixed;left:0;top:60px;bottom:0;z-index:200;width:260px;box-shadow:4px 0 24px rgba(0,0,0,.18)}
  .sidebar.open{display:flex}
  .menu-btn{display:none}
  .stats-row,.pub-metrics{grid-template-columns:1fr 1fr}
  .card-grid.col2,.card-grid.col3,.contact-grid,.service-row,.music-row,.app-cards,.agni-features{grid-template-columns:1fr}
  .main{padding:20px 18px;padding-bottom:calc(18px + 68px)}
  .home-hero{grid-template-columns:1fr;justify-items:center;gap:16px}
  .home-hero-text{width:100%}
  .home-hero-text p{max-width:100%;hyphens:none;line-height:1.65;text-align:left}
  #research-graph{width:280px;height:auto}
  .graph-info{width:260px}
  .proj-top{flex-direction:column}
  .agni-hero{padding:28px 22px}
  .agni-hero h1{font-size:26px}
  .page-hd h1{font-size:22px}
  .bottom-nav{display:flex}
}

/* Contact form */
.contact-form{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:28px;margin-bottom:28px}
.contact-form h3{font-size:15px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
@media(max-width:540px){.cf-row{grid-template-columns:1fr}}
.cf-group{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.cf-group label{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}
.cf-group input,.cf-group textarea,.cf-row .cf-group input{width:100%;padding:9px 13px;border:1px solid var(--border2);border-radius:9px;background:var(--surface2);color:var(--text);font-size:13px;font-family:inherit;transition:.15s;box-sizing:border-box}
.cf-group input:focus,.cf-group textarea:focus{outline:none;border-color:var(--accent);background:var(--surface)}
.cf-group textarea{resize:vertical;min-height:110px;line-height:1.6}
.cf-send{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;padding:10px 24px;border-radius:10px;background:var(--accent);color:#fff;border:none;cursor:pointer;transition:.15s}
.cf-send:hover{opacity:.88}
.cf-note{font-size:11px;color:var(--faint);margin-top:10px}
.cf-success{display:none;align-items:center;gap:10px;padding:12px 16px;border-radius:10px;background:var(--accent-bg);border:1px solid rgba(26,138,96,.25);color:var(--accent);font-size:13px;font-weight:500;margin-top:14px}

/* Publications filter bar */
.pub-filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:22px}
.pub-search{flex:1;min-width:180px;padding:8px 14px;border:1px solid var(--border2);border-radius:9px;background:var(--surface2);color:var(--text);font-size:13px;font-family:inherit}
.pub-search:focus{outline:none;border-color:var(--accent)}
.pub-filter-btns{display:flex;flex-wrap:wrap;gap:6px}
.pf-btn{font-size:11px;font-weight:600;padding:5px 13px;border-radius:20px;border:1px solid var(--border2);background:var(--surface2);color:var(--muted);cursor:pointer;transition:.15s}
.pf-btn.active,.pf-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.pub-empty{display:none;padding:28px;text-align:center;color:var(--faint);font-size:13px}

/* Skeleton pulse for loading stats */
@keyframes skPulse{0%,100%{opacity:.4}50%{opacity:1}}
.sk-loading{animation:skPulse 1.4s ease-in-out infinite;pointer-events:none}

/* ── Animations ─────────────────────────────────────────── */

/* Scroll entrance */
@keyframes revealUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.reveal{opacity:0}
.reveal.in-view{animation:revealUp .45s ease both}
@media(prefers-reduced-motion:reduce){.reveal,.reveal.in-view{opacity:1;animation:none}}

/* Home hero entrance */
@keyframes heroIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.home-hero-text{animation:heroIn .5s .05s ease both}
.hero-graph-wrap{animation:heroIn .55s .22s ease both}
@media(prefers-reduced-motion:reduce){.home-hero-text,.hero-graph-wrap{animation:none}}

/* Research graph node entrance */
@keyframes nodeIn{from{opacity:0;transform:scale(.3)}to{opacity:1;transform:scale(1)}}
@keyframes lineIn{from{opacity:0}to{opacity:1}}
.gnode{transform-box:fill-box;transform-origin:center;transition:opacity .2s ease,transform .2s ease}
.gline{transition:stroke .2s,stroke-width .2s,opacity .2s}

/* Button micro-interactions */
.btn,.soc-btn,.cv-btn,.cf-send,.pf-btn,.icon-btn{transition:.15s background,.15s color,.15s border-color,.12s transform}
.btn:active,.soc-btn:active,.cv-btn:active,.cf-send:active,.pf-btn:active,.icon-btn:active{transform:scale(.94)}

/* Sidebar link hover translate */
.slink{transition:.15s color,.15s background,.12s transform}
.slink:not(.active):hover{transform:translateX(3px)}

/* Publications filter smooth transitions */
.pub-section{transition:opacity .22s ease,transform .22s ease}
.pub-item{transition:opacity .18s ease,transform .18s ease}

/* ═══════════════════ ENHANCED MOTION LAYER ═══════════════════ */
@media (prefers-reduced-motion:no-preference){

/* — Scroll progress bar (top of viewport) — */
#scroll-progress{position:fixed;top:0;left:0;height:2.5px;width:0;z-index:3000;background:linear-gradient(90deg,var(--accent),#3b82f6,#22c55e);box-shadow:0 0 10px rgba(59,130,246,.45);transition:width .08s linear;border-radius:0 3px 3px 0;pointer-events:none}

/* — Animated gradient sheen sweeping across the name — */
@keyframes nameSheen{0%,68%{background-position:160% 0}100%{background-position:-30% 0}}
.home-hero-text h1,.page-hd h1{
  background:linear-gradient(100deg,var(--text) 0%,var(--text) 42%,var(--accent) 50%,var(--text) 58%,var(--text) 100%);
  background-size:260% 100%;background-position:160% 0;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:nameSheen 7s ease-in-out 1.4s infinite;
}
.home-hero-text h1{animation:heroIn .5s .05s ease both,nameSheen 7s ease-in-out 1.6s infinite;}

/* — Flowing gradient bar: hero top + stat top — */
@keyframes barFlow{0%{background-position:0 0}100%{background-position:200% 0}}
.home-hero{position:relative}
.home-hero::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),#3b82f6,#22c55e,var(--accent));background-size:200% 100%;animation:barFlow 5s linear infinite;border-radius:var(--radius) var(--radius) 0 0}
.stat::before{background:linear-gradient(90deg,var(--accent),#3b82f6,var(--accent));background-size:200% 100%;animation:barFlow 4s linear infinite}
[data-theme="dark"] .stat::before{background:linear-gradient(90deg,#3b82f6,#22c55e,#3b82f6);background-size:200% 100%;animation:barFlow 4s linear infinite}

/* — Light sheen sweep on hover (cards, items, projects) — */
@keyframes sheenSweep{0%{transform:translateX(-130%) skewX(-18deg)}100%{transform:translateX(340%) skewX(-18deg)}}
.card,.stat,.pub-item,.award-item,.proj,.teach-item,.contact-item,.lcard{position:relative;overflow:hidden}
.card::after,.pub-item::after,.award-item::after,.proj::after,.teach-item::after,.contact-item::after,.lcard::after{content:'';position:absolute;top:0;left:0;width:38%;height:100%;background:linear-gradient(100deg,transparent,rgba(120,170,255,.08),transparent);transform:translateX(-130%) skewX(-18deg);pointer-events:none;z-index:2}
.card:hover::after,.pub-item:hover::after,.award-item:hover::after,.proj:hover::after,.teach-item:hover::after,.contact-item:hover::after,.lcard:hover::after{animation:sheenSweep .8s ease}
.stat::after{content:'';position:absolute;top:0;left:0;width:38%;height:100%;background:linear-gradient(100deg,transparent,rgba(120,170,255,.1),transparent);transform:translateX(-130%) skewX(-18deg);pointer-events:none;z-index:2}
.stat:hover::after{animation:sheenSweep .8s ease}

/* — Top-nav animated underline — */
.tnav::after{content:'';position:absolute;bottom:-9px;left:50%;width:18px;height:2.5px;border-radius:2px;background:var(--accent);transform:translateX(-50%) scaleX(0);transform-origin:center;transition:transform .25s ease,opacity .2s;opacity:0}
.tnav:hover::after{opacity:.55;transform:translateX(-50%) scaleX(.62)}
.tnav.active::after{opacity:1;transform:translateX(-50%) scaleX(1)}

/* — Primary button gloss sweep on hover — */
.btn-primary,.cf-send{position:relative;overflow:hidden}
.btn-primary::after,.cf-send::after{content:'';position:absolute;top:0;left:0;width:45%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.28),transparent);transform:translateX(-160%) skewX(-20deg);pointer-events:none}
.btn-primary:hover::after,.cf-send:hover::after{animation:sheenSweep .7s ease}

/* — Chip cascade entrance + hover lift — */
@keyframes chipIn{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}
.chip-row .chip{animation:chipIn .42s ease both;transition:transform .16s,color .16s,border-color .16s,background .16s}
.chip-row .chip:nth-child(1){animation-delay:.34s}
.chip-row .chip:nth-child(2){animation-delay:.40s}
.chip-row .chip:nth-child(3){animation-delay:.46s}
.chip-row .chip:nth-child(4){animation-delay:.52s}
.chip-row .chip:nth-child(5){animation-delay:.58s}
.chip-row .chip:nth-child(6){animation-delay:.64s}
.chip:hover{transform:translateY(-2px);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 40%,transparent)}

/* — Social button icon flick — */
.soc-btn i{transition:transform .2s ease}
.soc-btn:hover i{transform:rotate(-9deg) scale(1.12)}

/* — Profile photo soft glow pulse — */
@keyframes avPulse{0%,100%{box-shadow:0 0 0 4px rgba(26,138,96,.15),0 4px 20px rgba(26,138,96,.3)}50%{box-shadow:0 0 0 5px rgba(26,138,96,.24),0 6px 26px rgba(26,138,96,.44)}}
@keyframes avPulseDark{0%,100%{box-shadow:0 0 0 4px rgba(59,130,246,.18),0 4px 20px rgba(59,130,246,.2)}50%{box-shadow:0 0 0 5px rgba(59,130,246,.28),0 6px 26px rgba(59,130,246,.36)}}
.av{animation:avPulse 4.5s ease-in-out infinite}
[data-theme="dark"] .av{animation:avPulseDark 4.5s ease-in-out infinite}

/* — Research graph: breathing rings + rotating center ring — */
@keyframes ringBreathe{0%,100%{transform:scale(1)}50%{transform:scale(1.07)}}
@keyframes spin{to{transform:rotate(360deg)}}
.gnode-ring{transform-box:fill-box;transform-origin:center;animation:ringBreathe 3.6s ease-in-out infinite}
.gnode:nth-of-type(odd) .gnode-ring{animation-duration:4.3s}
.gnode:nth-of-type(3n) .gnode-ring{animation-delay:-1.4s}
.gnode:nth-of-type(2n) .gnode-ring{animation-delay:-.7s}
.center-pulse{transform-box:fill-box;transform-origin:center;animation:centerpulse 3s ease-in-out infinite,spin 30s linear infinite}

/* — Cursor-follow spotlight glow on cards — */
.card::before,.proj::before,.pub-item::before,.award-item::before,.teach-item::before,.contact-item::before,.lcard::before,.phd-card::before,.music-card::before{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:-1;opacity:0;transition:opacity .3s ease;
  background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),color-mix(in srgb,var(--accent) 18%,transparent),transparent 60%);
}
.card:hover::before,.proj:hover::before,.pub-item:hover::before,.award-item:hover::before,.teach-item:hover::before,.contact-item:hover::before,.lcard:hover::before,.phd-card:hover::before,.music-card:hover::before{opacity:1}
.phd-card,.music-card{position:relative;overflow:hidden}

/* — Research graph parallax tilt — */
.hero-graph-wrap{perspective:900px}
#research-graph{transition:transform .4s ease;will-change:transform}

}

/* ═══════════════════ COMMAND PALETTE (⌘K) ═══════════════════ */
.cmdk-trigger{display:flex;align-items:center;gap:7px;height:36px;padding:0 11px;border-radius:9px;border:1.5px solid var(--border2);background:var(--surface2);color:var(--muted);cursor:pointer;font-size:12px;font-family:inherit;font-weight:500;flex-shrink:0;transition:.18s;box-shadow:var(--shadow-xs)}
.cmdk-trigger:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}
.cmdk-trigger i{font-size:15px}
.cmdk-trigger kbd{font-family:inherit;font-size:10px;font-weight:600;background:var(--surface);border:1px solid var(--border);border-radius:4px;padding:1px 5px;color:var(--faint)}
#cmdk-overlay{position:fixed;inset:0;z-index:4000;background:rgba(8,12,20,.55);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:none;align-items:flex-start;justify-content:center;padding:14vh 16px 16px;opacity:0;transition:opacity .16s ease}
#cmdk-overlay.open{display:flex;opacity:1}
#cmdk{width:min(580px,100%);background:var(--surface);border:1px solid var(--border2);border-radius:15px;box-shadow:0 26px 70px rgba(0,0,0,.5);overflow:hidden;transform:translateY(-10px) scale(.97);transition:transform .2s cubic-bezier(.34,1.4,.64,1)}
#cmdk-overlay.open #cmdk{transform:none}
.cmdk-search{display:flex;align-items:center;gap:11px;padding:15px 18px;border-bottom:1px solid var(--border)}
.cmdk-search i{font-size:19px;color:var(--muted);flex-shrink:0}
#cmdk-input{flex:1;border:none;background:none;font-size:15px;color:var(--text);font-family:inherit;outline:none;padding:0}
#cmdk-input::placeholder{color:var(--faint)}
#cmdk-list{max-height:46vh;overflow-y:auto;padding:7px;scrollbar-width:thin}
#cmdk-list::-webkit-scrollbar{width:5px}
#cmdk-list::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}
.cmdk-group{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.09em;color:var(--faint);padding:9px 12px 5px}
.cmdk-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;font-size:13.5px;color:var(--text);cursor:pointer;transition:background .12s}
.cmdk-item i{font-size:18px;color:var(--muted);width:21px;text-align:center;flex-shrink:0;transition:color .12s}
.cmdk-item .cmdk-sub{margin-left:auto;font-size:11px;color:var(--faint)}
.cmdk-item.sel{background:var(--accent-bg)}
.cmdk-item.sel i{color:var(--accent)}
.cmdk-item.sel .cmdk-arrow{opacity:1;transform:none}
.cmdk-arrow{margin-left:auto;font-size:14px;color:var(--accent);opacity:0;transform:translateX(-4px);transition:.15s}
.cmdk-empty{padding:22px;text-align:center;color:var(--faint);font-size:13px}
#cmdk-foot{display:flex;gap:16px;align-items:center;padding:9px 16px;border-top:1px solid var(--border);font-size:11px;color:var(--faint)}
#cmdk-foot span{display:flex;align-items:center;gap:5px}
#cmdk-foot kbd{font-family:inherit;font-size:10px;background:var(--surface2);border:1px solid var(--border2);border-radius:4px;padding:1px 6px;color:var(--muted)}
@media(max-width:768px){.cmdk-trigger span,.cmdk-trigger kbd{display:none}.cmdk-trigger{padding:0;width:36px;justify-content:center}}
@media(prefers-reduced-motion:reduce){#cmdk-overlay,#cmdk{transition:none}}

/* ════════════════════ POLISH & ANIMATION LAYER ════════════════════ */

/* — Subtle dot-grid texture in dark mode — */
[data-theme="dark"] body{background-image:radial-gradient(rgba(59,130,246,.045) 1px,transparent 1px);background-size:28px 28px}

/* — Page-section tag: line draws in — */
@keyframes tagLineIn{from{width:0}to{width:16px}}
.page-tag::before{width:0;animation:tagLineIn .38s cubic-bezier(.4,0,.2,1) .08s both}

/* — Keyboard focus ring — */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

@media(prefers-reduced-motion:no-preference){

  /* — Richer h1 blue→teal shimmer in dark mode — */
  [data-theme="dark"] .home-hero-text h1,[data-theme="dark"] .page-hd h1{
    background:linear-gradient(105deg,#c8dff5 0%,#c8dff5 34%,#93c5fd 43%,#6ee7b7 52%,#c8dff5 60%,#c8dff5 100%);
    background-size:280% 100%;background-position:220% 0;
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
    animation:nameSheen 6s ease-in-out 1.4s infinite;
  }
  [data-theme="dark"] .home-hero-text h1{animation:heroIn .5s .05s ease both,nameSheen 6s ease-in-out 1.6s infinite}

  /* — Dark mode: glowing card borders on hover — */
  [data-theme="dark"] .card:hover,[data-theme="dark"] .phd-card:hover,
  [data-theme="dark"] .music-card:hover,[data-theme="dark"] .lcard:hover,
  [data-theme="dark"] .award-item:hover,[data-theme="dark"] .teach-item:hover,
  [data-theme="dark"] .contact-item:hover{
    border-color:rgba(59,130,246,.4);
    box-shadow:0 0 0 1px rgba(59,130,246,.12),var(--shadow-hover);
  }
  [data-theme="dark"] .proj:hover{border-color:rgba(59,130,246,.38);box-shadow:var(--shadow-hover)}
  [data-theme="dark"] .pub-item:hover{border-color:rgba(59,130,246,.35)}

  /* — Dark mode: stat & metric numbers glow — */
  [data-theme="dark"] .stat .n,[data-theme="dark"] .stat-n,[data-theme="dark"] .pub-metric .n{
    animation:numGlow 3.5s ease-in-out infinite;
  }
  @keyframes numGlow{0%,100%{text-shadow:0 0 16px rgba(59,130,246,.32)}55%{text-shadow:0 0 28px rgba(59,130,246,.62),0 0 50px rgba(59,130,246,.14)}}

  /* — Topbar elevated on scroll — */
  .topbar{transition:box-shadow .25s ease,background .25s ease}
  .topbar.scrolled{box-shadow:0 2px 18px rgba(0,0,0,.1)}
  [data-theme="dark"] .topbar.scrolled{background:rgba(7,12,24,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 2px 20px rgba(0,0,0,.42),0 1px 0 rgba(59,130,246,.18)}

  /* — Click ripple on primary buttons — */
  .btn-ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,.24);pointer-events:none;transform:scale(0);animation:rippleExpand .52s ease-out both}
  @keyframes rippleExpand{to{transform:scale(4.5);opacity:0}}

  /* — Skill tag pro: glow on hover — */
  .stag{transition:.18s transform,.18s box-shadow}
  .stag.pro:hover{transform:translateY(-2px);box-shadow:0 0 0 1.5px var(--accent),0 3px 10px rgba(26,138,96,.2)}
  [data-theme="dark"] .stag.pro:hover{box-shadow:0 0 0 1.5px rgba(59,130,246,.7),0 3px 12px rgba(59,130,246,.22)}

  /* — Bottom nav active icon bounce — */
  @keyframes navIconBounce{0%{transform:scale(1)}30%{transform:scale(.82)}65%{transform:scale(1.22)}100%{transform:scale(1.15)}}
  .bnav.active i{animation:navIconBounce .3s ease both}

  /* — Social btn: bigger lift on hover — */
  .soc-btn:hover{transform:translateY(-3px) scale(1.1)}

  /* — Hero card: accent glow in dark mode — */
  [data-theme="dark"] .home-hero{border-color:rgba(59,130,246,.2);box-shadow:var(--shadow-sm),0 0 40px rgba(59,130,246,.05)}

}

/* ════════════════════ LIGHT MODE POLISH ════════════════════ */

/* Sage dot texture — mirrors dark mode grid */
html:not([data-theme="dark"]) body{background-image:radial-gradient(rgba(26,138,96,.055) 1px,transparent 1px);background-size:28px 28px}

/* Hero card: warm gradient + ambient glow */
html:not([data-theme="dark"]) .home-hero{background:linear-gradient(140deg,#ffffff 0%,#f2faf7 100%);box-shadow:var(--shadow-sm),0 0 0 1px rgba(26,138,96,.06),0 0 36px rgba(26,138,96,.05)}

/* Profile card: richer gradient */
html:not([data-theme="dark"]) .profile-card{background:linear-gradient(162deg,rgba(26,138,96,.16) 0%,rgba(26,138,96,.06) 55%,transparent 100%)}

/* Green-tinted card shadows */
html:not([data-theme="dark"]) .card,html:not([data-theme="dark"]) .stat,html:not([data-theme="dark"]) .pub-metric,
html:not([data-theme="dark"]) .teach-item,html:not([data-theme="dark"]) .award-item,
html:not([data-theme="dark"]) .phd-card,html:not([data-theme="dark"]) .music-card,
html:not([data-theme="dark"]) .contact-item{box-shadow:0 1px 3px rgba(0,0,0,.04),0 4px 14px rgba(26,138,96,.055)}

/* PhD images: neutral light bg in light mode (was near-black) */
html:not([data-theme="dark"]) .phd-img{background:#ebebeb}

@media(prefers-reduced-motion:no-preference){
  /* Frosted topbar on scroll */
  html:not([data-theme="dark"]) .topbar.scrolled{background:rgba(238,240,235,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 2px 14px rgba(26,138,96,.08),0 1px 0 rgba(26,138,96,.12)}

  /* Green card hover glow — mirrors dark mode blue glow */
  html:not([data-theme="dark"]) .card:hover,html:not([data-theme="dark"]) .phd-card:hover,
  html:not([data-theme="dark"]) .music-card:hover,html:not([data-theme="dark"]) .lcard:hover,
  html:not([data-theme="dark"]) .award-item:hover,html:not([data-theme="dark"]) .teach-item:hover,
  html:not([data-theme="dark"]) .contact-item:hover{border-color:rgba(26,138,96,.3);box-shadow:0 0 0 1px rgba(26,138,96,.1),0 4px 16px rgba(26,138,96,.08),0 16px 36px rgba(0,0,0,.05)}
  html:not([data-theme="dark"]) .proj:hover{border-color:var(--accent);box-shadow:0 4px 14px rgba(26,138,96,.1),0 14px 36px rgba(0,0,0,.05)}
  html:not([data-theme="dark"]) .pub-item:hover{border-color:rgba(26,138,96,.4);box-shadow:0 2px 8px rgba(26,138,96,.1),0 8px 20px rgba(0,0,0,.04)}

  /* Green h1 shimmer — mirrors dark mode nameSheen */
  html:not([data-theme="dark"]) .home-hero-text h1,html:not([data-theme="dark"]) .page-hd h1{
    background:linear-gradient(105deg,#0e1510 0%,#0e1510 33%,#1a8a60 42%,#0f6647 51%,#0e1510 57%,#0e1510 100%);
    background-size:280% 100%;background-position:220% 0;
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
    animation:nameSheenGreen 7s ease-in-out 1.8s infinite;
  }
  @keyframes nameSheenGreen{0%,100%{background-position:220% 0}50%{background-position:-60% 0}}

  /* Stat & metric number green glow — mirrors dark mode numGlow */
  html:not([data-theme="dark"]) .stat .n,html:not([data-theme="dark"]) .stat-n,
  html:not([data-theme="dark"]) .pub-metric .n{animation:numGlowGreen 4s ease-in-out infinite}
  @keyframes numGlowGreen{0%,100%{text-shadow:none}55%{text-shadow:0 0 14px rgba(26,138,96,.45)}}
}

/* ════════════════════ VIEW TRANSITIONS (cross-page fade) ════════════════════ */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vtOut .18s ease both}
::view-transition-new(root){animation:vtIn  .22s ease both}
@keyframes vtOut{to{opacity:0;transform:translateY(-4px)}}
@keyframes vtIn {from{opacity:0;transform:translateY(4px)}}