*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Sora',system-ui,sans-serif;text-rendering:optimizeSpeed;background:
  radial-gradient(1200px 700px at 15% -10%,rgba(44,174,255,.12),transparent 56%),
  radial-gradient(1000px 650px at 85% 5%,rgba(32,184,166,.10),transparent 58%),
  #071019;color:#ebf2f8;line-height:1.65;overflow-x:hidden}
:root{
  --bg:#071019;
  --bg-soft:#0d1a27;
  --bg-card:#112334;
  --bg-card-2:#142a3f;
  --bg-glass:rgba(10,26,40,.72);
  --ring:rgba(159,233,221,.28);
  --text:#ebf2f8;
  --muted:#a1b7ca;
  --muted-2:#7390a7;
  --edge:#24435e;
  --accent:#20b8a6;
  --accent-2:#f7a34b;
  --blue:#55b5ff;
  --ok:#7ee2a3;
  --danger:#ff8b8b;
  --radius-xl:20px;
  --radius-lg:16px;
  --radius-sm:10px;
  --max:1180px;
  --bp-lg:1080px;
  --bp-md:760px;
  --bp-sm:430px;
}
a{color:#9fe9dd;text-decoration:none}
a:hover{color:#cbfff7}
button,input,textarea{font:inherit}
code{font-family:'IBM Plex Mono',monospace;background:#0c1f30;color:#9fe9dd;padding:2px 6px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Skip link for keyboard users */
.skip-link{position:absolute;left:0;top:0;transform:translateY(-120%);background:#0d2234;color:#ecf7ff;padding:.7rem 1.1rem;border-radius:0 0 10px 0;z-index:300;font-weight:600;font-size:.85rem;border:1px solid rgba(159,233,221,.4);box-shadow:0 8px 24px rgba(0,0,0,.4);transition:transform .2s ease}
.skip-link:focus{transform:translateY(0);outline:2px solid #9fe9dd;outline-offset:2px}

/* Focus-visible ring (keyboard only) */
:focus-visible{outline:2px solid #9fe9dd;outline-offset:3px;border-radius:6px}
.btn:focus-visible,.show-more-btn:focus-visible,.send-btn:focus-visible,.back-to-top:focus-visible,.detail-close:focus-visible,.lang-btn:focus-visible,.nav-toggle:focus-visible{outline:2px solid #9fe9dd;outline-offset:3px}
a:focus-visible,.project-link:focus-visible{outline:2px solid #9fe9dd;outline-offset:2px;border-radius:4px}

/* Scroll progress bar */
.scroll-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,#20b8a6,#55b5ff,#f7a34b);z-index:200;width:0;transition:none;box-shadow:0 0 8px rgba(32,184,166,.5);will-change:width;contain:layout style}

/* Back to top button */
.back-to-top{position:fixed;bottom:2rem;right:2rem;z-index:150;width:44px;height:44px;border-radius:50%;border:1px solid rgba(159,233,221,.3);background:rgba(10,26,40,.85);backdrop-filter:blur(12px);color:#9fe9dd;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease;pointer-events:none;box-shadow:0 8px 24px rgba(0,0,0,.3);contain:layout style;touch-action:manipulation}
.back-to-top.visible{opacity:1;transform:translateY(0);pointer-events:auto}
.back-to-top:hover{background:rgba(32,184,166,.2);border-color:rgba(159,233,221,.6);transform:translateY(-2px);box-shadow:0 12px 32px rgba(32,184,166,.25)}
.back-to-top svg{width:18px;height:18px}

/* Atmosphere (desktop + motion-safe only) */
body::before,
body::after{content:'';position:fixed;inset:auto;z-index:-2;pointer-events:none;display:none}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.12;background-image:radial-gradient(circle at 1px 1px,rgba(224,244,255,.12) 1px,transparent 0);background-size:3px 3px}
@media (min-width:760px) and (prefers-reduced-motion: no-preference){
  body::before,body::after{display:block}
  body::before{width:52rem;height:52rem;top:-16rem;right:-12rem;background:radial-gradient(circle at 30% 30%,rgba(32,184,166,.18),transparent 63%);animation:floatOrb1 18s ease-in-out infinite;will-change:transform;contain:strict}
  body::after{width:58rem;height:58rem;bottom:-24rem;left:-18rem;background:radial-gradient(circle at 60% 30%,rgba(247,163,75,.14),transparent 60%);animation:floatOrb2 22s ease-in-out infinite;will-change:transform;contain:strict}
}
@keyframes floatOrb1{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-20px)}}
@keyframes floatOrb2{0%,100%{transform:translate(0,0)}50%{transform:translate(-25px,15px)}}

/* Navigation */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:120;background:linear-gradient(180deg,rgba(6,14,22,.88),rgba(6,14,22,.68));backdrop-filter:blur(20px) saturate(140%);border-bottom:1px solid rgba(144,184,208,.15);box-shadow:0 8px 28px rgba(2,8,14,.28);transition:box-shadow .3s ease,border-color .3s ease}
.site-nav.scrolled{box-shadow:0 12px 40px rgba(2,8,14,.4);border-bottom-color:rgba(144,184,208,.25)}
.nav-inner{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:.8rem 1.4rem}
.brand{font-weight:700;letter-spacing:.02em;color:#eef8ff}
.brand span{color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:.75rem}
.nav-links{display:flex;gap:1.1rem;flex-wrap:wrap}
.nav-links a{font-size:.79rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:.42rem .64rem;border-radius:999px;border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease}
.nav-links a:hover{color:#fff;background:rgba(16,36,52,.72);border-color:rgba(163,201,225,.32)}
.nav-links a.active{color:#9fe9dd;border-color:rgba(159,233,221,.35);background:rgba(32,184,166,.08)}
.lang-switcher{display:inline-flex;align-items:center;gap:.34rem;padding:.2rem;border-radius:999px;background:rgba(10,24,36,.74);border:1px solid rgba(132,174,200,.24)}
.lang-btn{display:inline-flex;align-items:center;gap:.34rem;border:1px solid transparent;background:transparent;color:#a8c1d3;border-radius:999px;padding:.34rem .52rem;cursor:pointer;font-size:.68rem;font-weight:700;letter-spacing:.04em;transition:.2s}
.lang-btn:hover{color:#dff6ff}
.lang-btn.active{background:rgba(19,50,70,.88);color:#ecf9ff;border-color:rgba(170,214,238,.36)}
.lang-flag{font-size:.84rem;line-height:1}
.lang-code{font-family:'IBM Plex Mono',monospace}

/* Hamburger / mobile nav toggle */
.nav-toggle{display:none;background:rgba(12,29,43,.7);border:1px solid rgba(142,184,208,.3);color:#dff3ff;width:40px;height:40px;border-radius:10px;padding:0;cursor:pointer;align-items:center;justify-content:center;transition:background .2s ease,border-color .2s ease;touch-action:manipulation}
.nav-toggle:hover{background:rgba(24,54,78,.92);border-color:rgba(191,231,255,.5)}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle .icon-close{display:none}
.nav-toggle[aria-expanded="true"] .icon-open{display:none}
.nav-toggle[aria-expanded="true"] .icon-close{display:block}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;overflow:hidden;padding:8rem 1.4rem 4.4rem;background:#071019}
.hero-video{position:absolute;inset:0;z-index:0}
.hero-video video{width:100%;height:100%;object-fit:cover;opacity:.35;filter:brightness(.7) saturate(1.1)}
.hero-overlay{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(4,12,20,.28) 0%,rgba(4,13,21,.76) 58%,rgba(4,12,20,.93) 100%)}
.hero-content{position:relative;max-width:var(--max);width:100%;margin:0 auto;display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:end}
.hero-copy{max-width:760px}
.eyebrow{margin:0 0 .9rem;font-size:.79rem;text-transform:uppercase;letter-spacing:.14em;color:#9de8dd;font-weight:600}
.hero h1{margin:0 0 .85rem;font-size:clamp(2.2rem,5.2vw,4.4rem);line-height:1.06;letter-spacing:-.03em}
.hero h1 .accent{display:block;color:#9de8dd}
.hero-lede{margin:0 0 1.3rem;color:#d5e6f4;font-size:1.06rem;max-width:66ch}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:1.3rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;padding:.76rem 1.2rem;border-radius:999px;font-size:.84rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease}
.btn svg{width:15px;height:15px}
.btn-primary{background:linear-gradient(135deg,#19bea7,#3abfff);color:#03131f;box-shadow:0 12px 30px rgba(22,175,194,.28)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(22,175,194,.36);color:#021016}
.btn-ghost{border-color:rgba(162,203,231,.28);background:rgba(8,20,31,.4);color:#d7e7f4}
.btn-ghost:hover{border-color:rgba(201,231,255,.66);background:rgba(10,26,39,.82);color:#fff}
.identity-row{display:flex;flex-wrap:wrap;gap:.55rem}
.identity-row a{font-size:.74rem;padding:.38rem .64rem;border-radius:999px;border:1px solid rgba(143,186,214,.24);background:rgba(11,25,38,.56);color:#bfdae8}
.identity-row a:hover{border-color:rgba(193,228,245,.48);color:#eef9ff}

.hero-side{display:grid;gap:.7rem}
.side-stat{padding:.9rem 1rem;background:rgba(7,19,31,.56);border:1px solid rgba(151,190,214,.18);border-radius:var(--radius-sm)}
.side-stat .label{font-size:.71rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted-2)}
.side-stat .value{font-family:'IBM Plex Mono',monospace;font-size:.95rem;color:#d6f8f2;margin-top:.25rem}
.scroll-hint{position:absolute;left:50%;bottom:1.2rem;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.35rem;font-size:.66rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:#d5ecfb;z-index:4;opacity:.86;transition:opacity .24s}
.scroll-hint::after{content:'';width:12px;height:12px;border-right:2px solid rgba(213,236,251,.88);border-bottom:2px solid rgba(213,236,251,.88);transform:rotate(45deg)}
.scroll-hint:hover{opacity:1;color:#ebf8ff}

/* Section divider */
.section-divider{max-width:var(--max);margin:0 auto;padding:0 1.4rem}
.section-divider::after{content:'';display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(159,233,221,.2) 20%,rgba(85,181,255,.15) 50%,rgba(247,163,75,.1) 80%,transparent);}

/* Layout sections */
main{position:relative}
.section{max-width:var(--max);margin:0 auto;padding:4.6rem 1.4rem}
.section-head{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:flex-end;margin-bottom:1.65rem}
.section-kicker{margin:0;font-size:.76rem;text-transform:uppercase;letter-spacing:.14em;color:#9de8dd;font-weight:600}
.section-title{margin:.3rem 0 0;font-size:clamp(1.5rem,2.7vw,2.3rem);letter-spacing:-.02em;line-height:1.15}
.section-note{margin:0;max-width:52ch;color:#b3c8d9;font-size:.95rem}

/* Projects */
.projects-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.15rem}
.project-card{position:relative;display:flex;flex-direction:column;background:linear-gradient(165deg,rgba(20,44,64,.88),rgba(10,24,36,.82));border:1px solid var(--edge);border-radius:var(--radius-lg);overflow:hidden;min-height:100%;box-shadow:0 16px 44px rgba(0,0,0,.28);backdrop-filter:saturate(120%) blur(3px);transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease}
.project-card::before{content:'';position:absolute;inset:-1px;border-radius:var(--radius-lg);background:linear-gradient(135deg,rgba(32,184,166,.3),rgba(85,181,255,.2),rgba(247,163,75,.15));opacity:0;transition:opacity .4s ease;z-index:0;pointer-events:none}
.project-card:hover::before{opacity:1}
.project-card:hover{transform:translateY(-4px);border-color:rgba(151,206,236,.5);box-shadow:0 24px 56px rgba(0,0,0,.36),0 0 40px rgba(32,184,166,.08)}
.project-card>*{position:relative;z-index:1}
.project-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.project-media picture{display:contents}
.project-media img{width:100%;height:100%;object-fit:cover;transition:transform .62s ease,filter .62s ease;will-change:transform}
.project-card:hover .project-media img{transform:scale(1.04)}
.project-badge{position:absolute;left:.8rem;top:.8rem;font-size:.66rem;text-transform:uppercase;letter-spacing:.1em;padding:.3rem .58rem;border-radius:999px;font-weight:600;background:rgba(3,11,20,.65);border:1px solid rgba(173,208,230,.35);color:#dbf7ff}
.project-body{padding:1rem .98rem 1.08rem;display:flex;flex-direction:column;gap:.66rem;flex:1}
.project-body h3{margin:0;font-size:1.08rem;letter-spacing:-.01em}
.project-tech{font-size:.7rem;color:#9fc3da;text-transform:uppercase;letter-spacing:.08em;font-family:'IBM Plex Mono',monospace}
.project-body p{margin:0;color:#bdd1df;font-size:.9rem}
.project-actions{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:.65rem;flex-wrap:wrap}
.show-more-btn{background:rgba(13,33,47,.9);border:1px solid rgba(160,204,229,.32);color:#dbf3ff;padding:.56rem .82rem;border-radius:999px;font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.07em;cursor:pointer;transition:.2s;box-shadow:0 8px 20px rgba(0,0,0,.2);touch-action:manipulation}
.show-more-btn:hover{background:rgba(24,66,90,.95);border-color:rgba(191,231,255,.65);transform:translateY(-1px)}
.project-link{font-size:.78rem;color:#9be8dd;font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.project-link:hover{color:#d6fff8}

/* Project metrics + cross-reference pills */
.project-meta{display:flex;flex-wrap:wrap;gap:.35rem;align-items:center;font-size:.7rem;color:#9fc3da;font-family:'IBM Plex Mono',monospace}
.project-meta .metric{display:inline-flex;align-items:center;gap:.28rem;padding:.2rem .48rem;border-radius:999px;background:rgba(13,33,47,.7);border:1px solid rgba(95,135,160,.3);color:#bfdae8}
.project-meta .metric svg{width:11px;height:11px;opacity:.85}
.project-meta .metric.loading{opacity:.5}
.project-ref{font-size:.72rem;color:#f7a34b;text-decoration:none;padding:.24rem .52rem;border-radius:999px;border:1px solid rgba(247,163,75,.35);background:rgba(247,163,75,.06);font-weight:600;letter-spacing:.02em}
.project-ref:hover{color:#ffc97a;border-color:rgba(247,163,75,.6);background:rgba(247,163,75,.12)}

.secondary-projects{display:grid;grid-template-columns:minmax(0,1fr);gap:1rem;margin-top:1.4rem}
.secondary-card{padding:1rem;background:rgba(10,23,35,.78);border:1px solid rgba(136,174,198,.22);border-radius:var(--radius-sm)}
.secondary-card h3{margin:0 0 .35rem;font-size:1rem}
.secondary-card p{margin:0 0 .55rem;color:var(--muted);font-size:.88rem}
.secondary-card a{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}

/* Publications */
.pub-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem}
.pub-item{padding:1rem;background:linear-gradient(165deg,rgba(12,28,42,.82),rgba(9,21,33,.74));border:1px solid rgba(141,182,207,.24);border-radius:var(--radius-sm);border-left:3px solid var(--accent);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.pub-item:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,0,0,.2);border-left-color:#55b5ff}
.pub-type{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:#95d9d1;font-weight:600}
.pub-item h3{margin:.4rem 0 .25rem;font-size:.92rem;line-height:1.4}
.pub-item p{margin:0;font-size:.79rem;color:var(--muted)}
.pub-media{margin-top:.3rem!important;font-size:.72rem!important;color:var(--muted-2)!important}
.pub-media a{color:#f7a34b}
.pub-media a:hover{color:#ffc97a}
.pub-related{margin-top:.4rem!important;font-size:.7rem!important;color:#95d9d1!important}
.pub-related a{color:#9fe9dd}

/* Writing / notes */
.writing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.9rem}
.writing-card{display:flex;flex-direction:column;padding:1rem;background:linear-gradient(165deg,rgba(14,30,45,.86),rgba(10,24,37,.8));border:1px solid rgba(142,183,207,.24);border-radius:var(--radius-sm);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.writing-card:hover{transform:translateY(-2px);border-color:rgba(159,233,221,.35);box-shadow:0 12px 32px rgba(0,0,0,.24)}
.writing-card .w-kicker{font-size:.66rem;text-transform:uppercase;letter-spacing:.12em;color:#95d9d1;font-weight:600}
.writing-card h3{margin:.4rem 0 .3rem;font-size:.96rem;line-height:1.35}
.writing-card p{margin:0 0 .6rem;color:var(--muted);font-size:.84rem;flex:1}
.writing-card a{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600;color:#9fe9dd}
.writing-card a:hover{color:#cbfff7}

/* Skills */
.skill-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.9rem}
.skill-block{padding:1rem;background:linear-gradient(165deg,rgba(14,30,45,.88),rgba(11,24,37,.8));border:1px solid rgba(142,183,207,.24);border-radius:var(--radius-sm)}
.skill-block h3{margin:0 0 .55rem;font-size:.88rem;color:#a9ebdf}
.skill-block--wide{grid-column:1/-1;padding:1.15rem 1.2rem}
.skill-block--wide .skill-chip-wrap{gap:.5rem .6rem}
.skill-block--wide .skill-chip{font-size:.76rem;padding:.32rem .72rem;background:linear-gradient(135deg,rgba(18,40,59,.95),rgba(12,30,46,.9));border-color:rgba(159,233,221,.22);letter-spacing:.01em}
.skill-block--wide .skill-chip:hover{background:rgba(32,184,166,.15);border-color:rgba(159,233,221,.45);color:#b5f5ec}
.skill-chip-wrap{display:flex;flex-wrap:wrap;gap:.4rem}
.skill-chip{font-size:.72rem;padding:.24rem .55rem;border-radius:999px;background:#12283b;color:#b9cfde;border:1px solid rgba(125,160,182,.28);transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease}
.skill-chip:hover{background:rgba(32,184,166,.12);border-color:rgba(159,233,221,.4);color:#9fe9dd;transform:translateY(-1px)}

/* Education */
.timeline{display:grid;gap:.75rem}
.timeline-item{display:grid;grid-template-columns:110px 1fr;gap:.9rem;padding:1rem;background:linear-gradient(165deg,rgba(10,24,37,.86),rgba(8,18,29,.8));border:1px solid rgba(142,182,206,.23);border-radius:var(--radius-sm)}
.timeline-year{font-family:'IBM Plex Mono',monospace;font-size:.8rem;color:#9de8dd}
.timeline-item h3{margin:0 0 .25rem;font-size:.95rem}
.timeline-item p{margin:0;color:var(--muted);font-size:.84rem}
.timeline-item ul{margin:.48rem 0 0;padding-left:1.05rem;color:var(--muted);font-size:.82rem;display:grid;gap:.25rem}
.timeline-item li{line-height:1.45}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:1rem}
.contact-panel,.form-panel{background:linear-gradient(165deg,rgba(10,24,37,.9),rgba(8,20,31,.84));border:1px solid rgba(143,181,204,.26);border-radius:var(--radius-lg);padding:1.1rem}
.contact-rows{display:grid;gap:.65rem}
.contact-row{padding:.75rem .8rem;border-radius:var(--radius-sm);background:#102438;border:1px solid rgba(133,171,194,.24)}
.contact-row .label{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:#89a7be}
.contact-row .value{font-size:.9rem;color:#dcebf6;margin-top:.18rem}
.contact-row a{color:#a8f1e5}
.form-panel h3{margin:.1rem 0 .95rem;font-size:1rem}
.field{margin-bottom:.72rem}
.field label{display:block;font-size:.76rem;color:#a0bacf;margin-bottom:.33rem;font-weight:600}
.field input,.field textarea{width:100%;border:1px solid rgba(145,181,204,.3);background:#10253a;color:#ecf7ff;padding:.6rem .72rem;border-radius:10px;outline:none}
.field input:focus,.field textarea:focus{border-color:#9de8dd;box-shadow:0 0 0 2px rgba(32,184,166,.14)}
.field input:invalid:not(:placeholder-shown),.field textarea:invalid:not(:placeholder-shown){border-color:rgba(255,139,139,.55)}
.field textarea{resize:vertical;min-height:120px}
.cf-hp{position:absolute;left:-9999px;opacity:0;width:0;height:0}
.captcha{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;margin-bottom:.72rem;padding:.62rem .7rem;border:1px solid rgba(143,181,204,.26);border-radius:10px;background:#0d2234}
.captcha span{font-size:.84rem;color:#b8cdde}
.captcha strong{color:#9de8dd;font-family:'IBM Plex Mono',monospace}
.captcha input{width:74px;text-align:center}
.send-btn{border:none;background:linear-gradient(130deg,#1ab39f,#57c7ff);color:#062034;padding:.68rem 1.08rem;border-radius:999px;font-weight:700;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;transition:.2s;touch-action:manipulation}
.send-btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(46,180,240,.28)}
.send-btn[disabled]{opacity:.6;cursor:wait}
.form-status{min-height:1.4em;font-size:.8rem;margin-top:.6rem}
.form-status.ok{color:var(--ok)}
.form-status.err{color:var(--danger)}

/* Footer */
footer{padding:3rem 1.4rem 2rem;border-top:1px solid rgba(145,181,205,.18);background:linear-gradient(180deg,transparent,rgba(6,14,22,.5));color:#8faabe;font-size:.77rem}
.footer-inner{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:1rem}
.footer-brand{font-weight:700;font-size:1rem;color:#eef8ff;letter-spacing:.02em}
.footer-brand span{color:var(--accent)}
.footer-links{display:flex;gap:1rem;justify-content:center}
.footer-links a{color:#8faabe;font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600;transition:color .2s}
.footer-links a:hover{color:#9fe9dd}
.footer-copy{text-align:right;font-size:.72rem;color:#6b8da4}
footer a{color:#bae4ff}
@media(max-width:760px){.footer-inner{grid-template-columns:1fr;text-align:center;gap:.6rem}.footer-copy{text-align:center}}

/* Modal / detail panel */
.project-detail{position:fixed;inset:0;display:none;z-index:220}
.project-detail.open{display:block}
.detail-backdrop{position:absolute;inset:0;background:rgba(2,8,14,.72);backdrop-filter:blur(8px)}
.detail-panel{position:relative;width:min(1020px,calc(100% - 2rem));max-height:calc(100vh - 2.5rem);overflow:auto;margin:1.25rem auto;background:linear-gradient(160deg,#11293e,#0a1b2b);border:1px solid rgba(163,206,232,.38);border-radius:var(--radius-xl);box-shadow:0 28px 78px rgba(0,0,0,.44)}
.detail-inner{padding:1rem}
.detail-top{display:flex;justify-content:space-between;gap:.8rem;align-items:flex-start;margin-bottom:.75rem}
.detail-title-wrap h3{margin:0;font-size:1.44rem;letter-spacing:-.02em}
.detail-title-wrap p{margin:.3rem 0 0;color:#9fc0d7;font-size:.9rem}
.detail-close{border:1px solid rgba(161,201,227,.34);background:#0f2538;color:#d7ecfb;width:40px;height:40px;border-radius:50%;font-size:1.24rem;line-height:1;cursor:pointer}
.detail-close:hover{background:#17344b}
.detail-gallery{display:grid;grid-template-columns:1.3fr 1fr;gap:.65rem;margin:.88rem 0 1rem}
.detail-gallery img{width:100%;height:100%;object-fit:cover;border-radius:14px;border:1px solid rgba(147,184,207,.28);min-height:220px}
.detail-content{display:grid;grid-template-columns:1.25fr .75fr;gap:1rem}
.panel-card{padding:.9rem;background:rgba(11,28,41,.7);border:1px solid rgba(146,183,206,.2);border-radius:12px}
.panel-card h4{margin:0 0 .5rem;font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:#93d7cf}
.panel-card p{margin:0;color:#c4d7e4;font-size:.9rem}
.panel-list{margin:0;padding-left:1rem;color:#c5d8e6;font-size:.86rem;display:grid;gap:.38rem}
.stack-list{display:flex;flex-wrap:wrap;gap:.36rem}
.stack-list span{font-size:.72rem;padding:.26rem .5rem;border-radius:999px;background:#11273a;color:#a9ccdf;border:1px solid rgba(136,170,191,.28)}
.detail-actions{margin-top:1rem;display:flex;gap:.65rem;flex-wrap:wrap}
.detail-actions a{display:inline-flex;align-items:center;gap:.35rem;padding:.58rem .92rem;border-radius:999px;border:1px solid rgba(150,188,211,.3);font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600;color:#d8edfb;background:#122d42}
.detail-actions a.primary{background:linear-gradient(130deg,#18b39f,#3ec0f5);border-color:transparent;color:#062334}
.detail-actions a:hover{transform:translateY(-1px)}

/* Reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.23,1,.32,1),transform .7s cubic-bezier(.23,1,.32,1);transition-delay:var(--delay,0ms)}
.reveal.show{opacity:1;transform:translateY(0)}

/* Stat counter animation */
@keyframes countPulse{0%{opacity:.7}50%{opacity:1}100%{opacity:.7}}
.hero-side .side-stat{transition:border-color .25s ease,background .25s ease}
.hero-side .side-stat:hover{border-color:rgba(159,233,221,.35);background:rgba(7,19,31,.7)}

/* Timeline item hover */
.timeline-item{transition:border-color .25s ease,transform .25s ease}
.timeline-item:hover{border-color:rgba(159,233,221,.35);transform:translateX(4px)}

/* Contact row hover */
.contact-row{transition:border-color .2s ease,background .2s ease}
.contact-row:hover{border-color:rgba(159,233,221,.3);background:#13293d}

/* Secondary card hover */
.secondary-card{transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease}
.secondary-card:hover{border-color:rgba(159,233,221,.35);transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.2)}

@media (max-width:1080px){
  .hero-content{grid-template-columns:1fr}
  .hero-side{grid-template-columns:repeat(3,minmax(0,1fr))}
  .projects-grid,.pub-grid{grid-template-columns:1fr}
  .skill-columns{grid-template-columns:repeat(2,minmax(0,1fr))}
  .skill-block--wide{grid-column:1/-1}
  .contact-grid{grid-template-columns:1fr}
  .detail-gallery,.detail-content{grid-template-columns:1fr}
  .writing-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:760px){
  .site-nav{background:rgba(5,12,20,.88)}
  .nav-inner{display:grid;grid-template-columns:1fr auto auto;align-items:center;padding:.62rem .85rem .75rem;gap:.48rem}
  .nav-right{display:contents}
  .brand{font-size:.93rem}
  .nav-toggle{display:inline-flex;position:static;grid-column:3;grid-row:1}
  .nav-links{grid-column:1/-1;grid-row:2;max-height:0;overflow:hidden;flex-direction:column;gap:.35rem;width:100%;padding:0;transition:max-height .28s ease,padding .28s ease,opacity .28s ease;opacity:0}
  .nav-inner[data-nav-open="true"] .nav-links{max-height:480px;padding:.5rem 0 .3rem;opacity:1}
  .nav-links a{white-space:nowrap;font-size:.72rem;padding:.6rem .72rem;border:1px solid rgba(142,184,208,.3);border-radius:10px;background:rgba(12,29,43,.7);width:100%;text-align:left}
  .lang-switcher{grid-column:2;grid-row:1;justify-self:end}
  .lang-btn{padding:.32rem .52rem}
  .grain{display:none}
  .hero-overlay{background:linear-gradient(180deg,rgba(4,12,20,.42) 0%,rgba(4,12,20,.75) 62%,rgba(4,12,20,.92) 100%)}
  .hero{min-height:auto;padding-top:8.45rem;padding-bottom:3.9rem;background:#071019}
  .hero h1{font-size:clamp(1.95rem,9vw,2.7rem)}
  .hero-lede{font-size:.95rem;margin-bottom:1rem}
  .hero-actions{margin-bottom:.95rem;gap:.55rem}
  .hero-actions .btn{flex:1;justify-content:center;min-width:140px;min-height:44px}
  .identity-row a{font-size:.67rem;padding:.34rem .52rem}
  .side-stat{padding:.72rem .78rem}
  .side-stat .value{font-size:.84rem}
  .section{padding:2.9rem .85rem}
  .section-head{margin-bottom:1.15rem}
  .section-title{font-size:clamp(1.34rem,7vw,1.86rem)}
  .section-note{font-size:.9rem}
  .secondary-projects{grid-template-columns:1fr}
  .skill-columns{grid-template-columns:1fr}
  .writing-grid{grid-template-columns:1fr}
  .hero-side{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:1fr}
  .project-card{box-shadow:0 9px 24px rgba(0,0,0,.24)}
  .project-body{padding:.86rem .8rem .92rem}
  .project-actions{flex-direction:column;align-items:stretch}
  .show-more-btn,.project-link{width:100%;text-align:center;justify-content:center;min-height:42px}
  .project-link{display:inline-flex;padding:.52rem .78rem;border:1px solid rgba(157,213,244,.28);border-radius:999px;background:rgba(12,34,50,.6)}
  .pub-item h3{font-size:.87rem}
  .pub-item p{font-size:.76rem}
  .timeline-item ul{font-size:.79rem}
  .contact-panel,.form-panel{padding:.95rem}
  .field input,.field textarea{font-size:16px}
  .project-detail{align-items:flex-end}
  .detail-panel{width:100%;height:calc(100dvh - .7rem);max-height:calc(100dvh - .7rem);margin:0;border-radius:18px 18px 0 0;position:fixed;left:0;right:0;bottom:0;top:auto}
  .detail-inner{padding:.9rem .82rem calc(1.25rem + env(safe-area-inset-bottom))}
  .detail-top{position:sticky;top:0;background:linear-gradient(180deg,rgba(10,28,42,.96),rgba(10,28,42,.7));padding-bottom:.48rem;z-index:2}
  .detail-gallery img{min-height:170px}
  .detail-actions{position:sticky;bottom:0;background:linear-gradient(180deg,rgba(10,27,41,0),rgba(10,27,41,.96) 24%,rgba(10,27,41,.98) 100%);padding-top:.62rem;padding-bottom:.2rem;margin-top:.82rem}
  .detail-actions a{flex:1;justify-content:center}
  .scroll-hint{bottom:.75rem;font-size:.61rem}
  .back-to-top{bottom:1.2rem;right:1rem;width:40px;height:40px}
  .section-divider{padding:0 .85rem}
  html{scroll-behavior:auto}
}

@media (max-width:430px){
  .hero{padding-top:8.2rem;padding-bottom:3.4rem}
  .hero-actions .btn{min-width:0;padding:.68rem .82rem;font-size:.73rem}
  .identity-row{gap:.38rem}
  .identity-row a{font-size:.63rem;padding:.3rem .46rem}
  .nav-links a{font-size:.68rem;padding:.56rem .66rem}
  .lang-btn{font-size:.64rem;padding:.3rem .48rem}
  .section{padding:2.7rem .72rem}
  .scroll-hint{bottom:.55rem}
}

/* Content-visibility for off-screen sections */
#publications,#skills,#education,#contact,#writing{content-visibility:auto;contain-intrinsic-size:auto 600px}

@media (prefers-reduced-motion: reduce){
  .scroll-hint::after{animation:none}
  body::before,body::after{animation:none}
  .project-card,.project-card::before,.project-media img,.pub-item,.skill-chip,.timeline-item,.contact-row,.secondary-card,.back-to-top,.reveal,.writing-card{transition:none!important;animation:none!important}
}