/* ─── VARIABLES & RESET ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0a0f;
  --bg2:#111118;
  --bg3:#1a1a24;
  --surface:#1e1e2a;
  --border:#2a2a3a;
  --border2:#3a3a50;
  --text:#e8e8f0;
  --muted:#888899;
  --faint:#444455;
  --accent:#4f8ef7;
  --accent2:#7c5cfc;
  --green:#3ecf8e;
  --amber:#f59e0b;
  --serif:'DM Serif Display',serif;
  --sans:'DM Sans',sans-serif;
  --mono:'JetBrains Mono',monospace;
}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.7;overflow-x:hidden}

/* ─── NAV ─── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;background:rgba(10,10,15,0.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-logo{font-family:var(--serif);font-size:1.1rem;color:var(--text);text-decoration:none;letter-spacing:0.02em}
.nav-logo span{color:var(--accent)}
.nav-links{display:flex;gap:1.75rem;list-style:none;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;font-size:0.82rem;font-weight:500;letter-spacing:0.05em;text-transform:uppercase;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:0.35rem}
.nav-hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:1px;transition:transform 0.28s ease,opacity 0.28s ease}
nav.nav-open .nav-hamburger span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
nav.nav-open .nav-hamburger span:nth-child(2){opacity:0;transform:translateX(-6px)}
nav.nav-open .nav-hamburger span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ─── HERO ─── */
#hero{min-height:100vh;display:flex;align-items:center;padding:0 2rem;position:relative;overflow:hidden}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:60px 60px;opacity:0.3;pointer-events:none}
.hero-glow{position:absolute;top:20%;left:30%;width:600px;height:600px;background:radial-gradient(circle,rgba(79,142,247,0.07) 0%,transparent 70%);pointer-events:none}
.hero-content{max-width:980px;margin:0 auto;position:relative;z-index:1;width:100%}
/* Name + bio | portrait row */
.hero-intro{display:flex;align-items:center;gap:3.5rem;margin-bottom:2rem;padding-bottom:2rem;border-bottom:1px solid var(--border)}
.hero-intro-text{flex:1;min-width:0}
.hero-portrait{width:288px;flex-shrink:0}
.hero-portrait img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:1rem;border:1px solid var(--border);display:block}
/* Tag sits below the intro container */
.hero-tag{display:inline-flex;align-items:center;gap:0.5rem;background:rgba(79,142,247,0.1);border:1px solid rgba(79,142,247,0.25);color:var(--accent);padding:0.3rem 0.9rem;border-radius:2rem;font-size:0.8rem;font-family:var(--mono);margin-bottom:1.5rem;letter-spacing:0.05em}
.hero-tag::before{content:'';width:6px;height:6px;background:var(--green);border-radius:50%;animation:pulse 2s ease-in-out infinite;flex-shrink:0}
.hero-tag-row{display:flex;align-items:stretch;gap:0.5rem;margin-bottom:1.5rem;flex-wrap:nowrap}
.hero-tag{margin-bottom:0}
.hero-tag-icon{display:inline-flex;align-items:center;justify-content:center;gap:0.3rem;color:var(--accent);text-decoration:none;background:rgba(79,142,247,0.1);border:1px solid rgba(79,142,247,0.25);border-radius:0.4rem;padding:0.3rem 0.55rem;transition:background .2s,border-color .2s}
.hero-tag-icon-arrow{font-size:0.85rem;line-height:1;display:inline}
.hero-tag-icon:hover{background:rgba(79,142,247,0.18);border-color:rgba(79,142,247,0.45)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(1.3)}}
h1.hero-name{font-family:var(--serif);font-size:clamp(3rem,8vw,6rem);line-height:1.05;color:var(--text);margin-bottom:0.75rem}
h1.hero-name em{font-style:italic;color:var(--accent)}
.hero-title{font-size:1.1rem;color:var(--muted);font-weight:300;margin-bottom:2rem;max-width:600px;line-height:1.6}
.hero-title-mobile{display:none}
.hero-ctas{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:3rem}
.btn-primary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.75rem 1.6rem;border-radius:0.4rem;text-decoration:none;font-size:0.9rem;font-weight:500;min-width:140px}
.btn-primary{background:var(--accent);color:#fff;transition:opacity .2s,transform .15s}
.btn-primary:hover{opacity:0.88;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border2);transition:border-color .2s,transform .15s}
.btn-ghost:hover{border-color:var(--accent);transform:translateY(-2px)}
.hero-stats{display:flex;flex-wrap:wrap;gap:2.5rem}
.stat-item{display:flex;flex-direction:column;gap:0.2rem}

.stat-num{font-family:var(--serif);font-size:2rem;color:var(--text)}
.stat-label{font-size:0.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.08em}
.hero-scroll{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:0.5rem;color:var(--faint);font-size:0.72rem;letter-spacing:0.12em;text-transform:uppercase}
.scroll-line{width:1px;height:40px;background:linear-gradient(to bottom,var(--faint),transparent);animation:scrolldown 2s ease-in-out infinite}
@keyframes scrolldown{0%,100%{opacity:0.3;transform:scaleY(1)}50%{opacity:1;transform:scaleY(1.2)}}

/* ─── SECTIONS ─── */
section{padding:6rem 2rem}
.container{max-width:980px;margin:0 auto}
.section-label{font-family:var(--mono);font-size:0.72rem;color:var(--accent);text-transform:uppercase;letter-spacing:0.15em;margin-bottom:0.75rem}
.section-title{font-family:var(--serif);font-size:clamp(2rem,4vw,2.8rem);line-height:1.1;margin-bottom:2.5rem}
.divider{width:40px;height:2px;background:var(--accent);margin-bottom:2.5rem}

/* ─── ABOUT ─── */
#about{background:var(--bg2)}
.about-grid{display:grid;grid-template-columns:1fr 2fr;gap:4rem;align-items:start}
.about-sidebar{position:sticky;top:5rem}
.about-avatar{width:100%;aspect-ratio:1;border-radius:1rem;background:linear-gradient(135deg,var(--bg3),var(--surface));border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:3rem;color:var(--faint);margin-bottom:1.5rem;overflow:hidden}
.about-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.about-links{display:flex;flex-direction:column;gap:0.6rem}
.about-link{display:flex;align-items:center;gap:0.6rem;color:var(--muted);text-decoration:none;font-size:0.85rem;transition:color .2s}
.about-link:hover{color:var(--accent)}
.about-link svg{width:14px;height:14px;flex-shrink:0}
.about-body p{color:var(--muted);margin-bottom:1.2rem;font-size:0.95rem;line-height:1.8}
.about-body p:first-child{color:var(--text);font-size:1.05rem}
.about-body p a{color:var(--accent);font-weight:500;text-decoration:none}
.philosophy-card{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent2);border-radius:0.5rem;padding:1.25rem 1.5rem;margin-top:2rem;font-style:italic;font-family:var(--serif);font-size:1rem;color:var(--text);line-height:1.6}

/* ─── EXPERIENCE ─── */
#experience{background:var(--bg)}
.timeline{position:relative;padding-left:2rem}
.timeline::before{content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--accent),var(--border))}
.timeline-item{position:relative;padding-bottom:1rem}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:calc(-2rem - 4px);top:1.1rem;width:10px;height:10px;border-radius:50%;background:var(--accent);border:none;transition:box-shadow .2s,transform .2s}
.timeline-item:hover .timeline-dot{box-shadow:0 0 0 4px rgba(79,142,247,0.2);transform:scale(1.2)}
.timeline-card{background:var(--surface);border:1px solid var(--border);border-radius:0.75rem;overflow:hidden;transition:border-color .2s}
.timeline-card:hover{border-color:var(--border2)}
/* Card main row: left text + right image always visible */
.timeline-card-main{display:flex;align-items:stretch;cursor:pointer;user-select:none;position:relative}
.timeline-card-left{flex:1;padding:1.1rem 1.5rem;min-width:0;display:flex;flex-direction:column}
.timeline-card-right{width:143px;flex-shrink:0;border-left:1px solid var(--border);display:flex;align-items:center;justify-content:center;padding:0.75rem}
.timeline-card-right img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:0.5rem;display:block}
.timeline-company{font-family:var(--serif);font-size:1.05rem;color:var(--text)}
.timeline-role{font-size:0.82rem;color:var(--accent);font-weight:500;text-transform:uppercase;letter-spacing:0.04em;margin-top:0.1rem}
.timeline-meta-row{display:flex;align-items:center;gap:0.5rem;margin-top:0.35rem;flex-wrap:wrap}
.timeline-date{font-family:var(--mono);font-size:0.72rem;color:var(--faint)}
.timeline-sep{color:var(--faint);font-size:0.72rem}
.timeline-location{font-family:var(--mono);font-size:0.72rem;color:var(--muted)}
.timeline-chevron-row{margin-top:0.6rem}
.timeline-chevron{width:16px;height:16px;color:var(--muted);flex-shrink:0;transition:transform .28s ease}
.timeline-card.open .timeline-chevron{transform:rotate(180deg)}
/* Expandable details */
.timeline-details{display:none;padding:1.1rem 1.5rem;border-top:1px solid var(--border)}
.timeline-card.open .timeline-details{display:block}
.timeline-details ul{list-style:none;display:flex;flex-direction:column;gap:0.5rem}
.timeline-details li{color:var(--muted);font-size:0.88rem;padding-left:1.25rem;position:relative;line-height:1.6}
.timeline-details li::before{content:'→';position:absolute;left:0;color:var(--faint)}
.timeline-details a{color:var(--accent);text-decoration:none}
.timeline-details a:hover{text-decoration:underline}
.company-badge{display:inline-block;padding:0.15rem 0.55rem;border-radius:0.3rem;font-size:0.68rem;font-weight:500;margin-left:0.4rem;vertical-align:middle}
.badge-current{background:rgba(62,207,142,0.1);color:var(--green);border:1px solid rgba(62,207,142,0.25)}
.badge-research{background:rgba(124,92,252,0.1);color:var(--accent2);border:1px solid rgba(124,92,252,0.25)}

/* ─── EDUCATION ─── */
#education{background:var(--bg2)}
.edu-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.edu-card{background:var(--surface);border:1px solid var(--border);border-radius:0.75rem;padding:1.75rem 2rem;transition:border-color .2s}
.edu-card:hover{border-color:var(--border2)}
.edu-school{font-family:var(--serif);font-size:1.25rem;color:var(--text);margin-bottom:0.25rem}
.edu-degree{font-size:0.85rem;color:var(--accent);font-weight:500;margin-bottom:0.25rem;text-transform:uppercase;letter-spacing:0.04em}
.edu-dates{font-family:var(--mono);font-size:0.75rem;color:var(--faint);margin-bottom:1.25rem}
.edu-card ul{list-style:none;display:flex;flex-direction:column;gap:0.5rem}
.edu-card li{color:var(--muted);font-size:0.85rem;padding-left:1.1rem;position:relative;line-height:1.6}
.edu-card li::before{content:'·';position:absolute;left:0;color:var(--accent)}
.edu-card a{color:var(--accent);text-decoration:none}
.edu-courses{display:flex;flex-wrap:wrap;gap:0.4rem;margin-top:1rem}
.course-tag{background:rgba(79,142,247,0.07);border:1px solid rgba(79,142,247,0.15);color:var(--muted);padding:0.2rem 0.6rem;border-radius:0.3rem;font-size:0.75rem;font-family:var(--mono)}

/* ─── SKILLS ─── */
#skills{background:var(--bg)}
.skills-layout{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.skill-group-title{font-family:var(--mono);font-size:0.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.1em;margin-bottom:1rem}
.skill-pills{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:2rem}
.skill-pill{background:var(--surface);border:1px solid var(--border);color:var(--muted);padding:0.3rem 0.8rem;border-radius:0.35rem;font-size:0.82rem;font-family:var(--mono);transition:all .15s}
.skill-pill:hover{border-color:var(--accent);color:var(--text)}
.cert-list{display:flex;flex-direction:column;gap:0.75rem}
.cert-item{display:flex;align-items:center;gap:0.75rem;background:var(--surface);border:1px solid var(--border);border-radius:0.5rem;padding:0.75rem 1rem;text-decoration:none;transition:border-color .2s}
.cert-item:hover{border-color:var(--accent)}
.cert-icon{width:32px;height:32px;border-radius:0.35rem;background:rgba(79,142,247,0.1);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cert-icon svg{width:16px;height:16px;color:var(--accent)}
.cert-name{font-size:0.85rem;color:var(--text);font-weight:500}
.cert-issuer{font-size:0.75rem;color:var(--muted)}

/* ─── CONTACT ─── */
#contact{background:var(--bg2);text-align:center;padding:4rem 2rem}
.contact-inner{max-width:400px;margin:0 auto}
.contact-inner .section-title{margin-bottom:0.75rem}
.contact-sub{color:var(--muted);font-size:0.9rem;margin-bottom:2rem;line-height:1.6}
.contact-icons-row{display:inline-flex;border:1px solid var(--border);border-radius:0.5rem;overflow:hidden}
.contact-icon-sm{display:flex;align-items:center;justify-content:center;padding:0.7rem 1.4rem;color:var(--muted);text-decoration:none;transition:color .18s,background .18s}
.contact-icon-sm:hover{color:var(--accent);background:rgba(79,142,247,0.08)}
.contact-icon-sm+.contact-icon-sm{border-left:1px solid var(--border)}
.contact-icon-sm svg{width:20px;height:20px;display:block}

/* ─── FOOTER ─── */
footer{background:var(--bg);border-top:1px solid var(--border);padding:2.5rem 2rem}
.footer-inner{max-width:980px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-copy{font-size:0.8rem;color:var(--faint);font-family:var(--mono)}
.social-links{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}
.social-link{color:var(--faint);transition:color .2s;line-height:0}
.social-link:hover{color:var(--text)}
.social-link svg{width:18px;height:18px}

/* ─── PAGE HEADER (works / blog) ─── */
.page-header{padding:8rem 2rem 4rem;background:var(--bg);border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.page-header .bg-grid{position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:60px 60px;opacity:0.2;pointer-events:none}
.page-header .container{position:relative;z-index:1}
.page-header h1{font-family:var(--serif);font-size:clamp(2.5rem,6vw,4rem);line-height:1.05;margin-bottom:1rem}
.page-header p{color:var(--muted);font-size:1rem;max-width:560px;line-height:1.7}

/* ─── WORKS PAGE ─── */
.works-section{padding:5rem 2rem}
.projects-grid-sq{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem}
.project-sq{background:var(--surface);border:1px solid var(--border);border-radius:0.75rem;overflow:hidden;position:relative;aspect-ratio:1;cursor:pointer;transition:border-color .25s,transform .25s;text-decoration:none}
.project-sq:hover{border-color:var(--border2);transform:translateY(-4px)}
.project-sq-img{position:absolute;inset:0;overflow:hidden}
.project-sq-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.project-sq:hover .project-sq-img img{transform:scale(1.06)}
.project-sq-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(10,10,15,0.97) 0%,rgba(10,10,15,0.82) 55%,rgba(10,10,15,0.2) 100%);padding:1rem;display:flex;flex-direction:column;justify-content:flex-end}
.project-sq-title{font-family:var(--serif);font-size:0.95rem;color:var(--text);line-height:1.3}
.project-sq-desc{font-size:0.75rem;color:var(--text);line-height:1.5;margin-top:0.35rem;max-height:0;overflow:hidden;transition:max-height .3s ease,opacity .3s}
.project-sq-desc{opacity:0}
.project-sq:hover .project-sq-desc{max-height:80px;opacity:1}
.project-sq-link{margin-top:0.4rem;font-size:0.72rem;font-family:var(--mono);color:var(--accent);max-height:0;overflow:hidden;transition:max-height .3s ease,opacity .3s;opacity:0}
.project-sq:hover .project-sq-link{max-height:30px;opacity:1}
.project-sq-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:3rem;color:var(--faint);background:linear-gradient(135deg,var(--bg3),var(--surface))}

/* Paper cards */
.papers-list{display:flex;flex-direction:column;gap:0.75rem}
.paper-card{background:var(--surface);border:1px solid var(--border);border-radius:0.75rem;overflow:hidden;transition:border-color .2s}
.paper-card:hover{border-color:var(--border2)}
.paper-header{display:flex;align-items:flex-start;gap:1rem;padding:1.25rem 1.5rem;cursor:pointer;user-select:none}
.paper-header-text{flex:1}
.paper-title{font-family:var(--serif);font-size:1rem;color:var(--text);line-height:1.35;margin-bottom:0.25rem}
.paper-venue{font-family:var(--mono);font-size:0.7rem;color:var(--accent2);letter-spacing:0.03em;margin-bottom:0.4rem}
.paper-preview{font-size:0.82rem;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.paper-meta-row{display:flex;align-items:center;gap:0.75rem;flex-shrink:0;padding-top:0.2rem}
.paper-year{font-family:var(--mono);font-size:0.72rem;color:var(--faint)}
.paper-toggle{width:18px;height:18px;color:var(--muted);transition:transform .3s;flex-shrink:0}
.paper-card.open .paper-toggle{transform:rotate(180deg)}
.paper-body{display:none;padding:0 1.5rem 1.5rem;border-top:1px solid var(--border)}
.paper-card.open .paper-body{display:block}
.paper-abstract{font-size:0.88rem;color:var(--muted);line-height:1.8;padding-top:1.25rem;margin-bottom:1.5rem}
.paper-actions{display:flex;flex-wrap:wrap;gap:0.75rem}
.paper-action{display:inline-flex;align-items:center;gap:0.4rem;padding:0.45rem 1rem;border-radius:0.35rem;font-size:0.8rem;font-family:var(--mono);text-decoration:none;border:1px solid var(--border2);color:var(--muted);transition:all .15s}
.paper-action:hover{border-color:var(--accent);color:var(--accent)}
.paper-action.primary-action{background:rgba(79,142,247,0.1);border-color:rgba(79,142,247,0.3);color:var(--accent)}
.paper-action.primary-action:hover{background:rgba(79,142,247,0.18)}

/* ─── BLOG PAGE ─── */
.blog-body{display:grid;grid-template-columns:240px 1fr;background:var(--bg)}
.blog-sidebar{border-right:1px solid var(--border);padding:2.5rem 1.5rem;position:sticky;top:60px;height:calc(100vh - 60px);overflow-y:auto;background:var(--bg)}
.blog-sidebar-label{font-family:var(--mono);font-size:0.68rem;color:var(--faint);text-transform:uppercase;letter-spacing:0.18em;margin-bottom:1.25rem}
.blog-categories{list-style:none;display:flex;flex-direction:column;gap:0.35rem}
.blog-cat-btn{display:block;width:100%;text-align:left;background:none;border:1px solid transparent;color:var(--muted);padding:0.6rem 0.9rem;border-radius:0.4rem;font-size:0.85rem;font-family:var(--sans);cursor:pointer;transition:all .15s;line-height:1.3}
.blog-cat-btn:hover{color:var(--text);border-color:var(--border)}
.blog-cat-btn.active{color:var(--accent);background:rgba(79,142,247,0.08);border-color:rgba(79,142,247,0.2)}
.blog-panel{padding:2.5rem;min-height:60vh}
.blog-panel-heading{font-family:var(--serif);font-size:1.4rem;color:var(--text);margin-bottom:0.4rem}
.blog-panel-label{font-family:var(--mono);font-size:0.72rem;color:var(--faint);text-transform:uppercase;letter-spacing:0.12em;margin-bottom:2rem}
.post-list{display:flex;flex-direction:column;gap:1rem}
.post-card{display:flex;gap:1.25rem;background:var(--surface);border:1px solid var(--border);border-radius:0.75rem;padding:1.1rem;text-decoration:none;transition:border-color .2s,transform .2s;align-items:flex-start}
.post-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.post-thumb{width:88px;height:88px;flex-shrink:0;border-radius:0.5rem;overflow:hidden;background:var(--bg3)}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-thumb-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:2rem;color:var(--faint)}
.post-info{flex:1;min-width:0}
.post-title{font-family:var(--serif);font-size:0.95rem;color:var(--text);margin-bottom:0.35rem;line-height:1.35}
.post-preview{font-size:0.82rem;color:var(--muted);line-height:1.6;margin-bottom:0.5rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{font-family:var(--mono);font-size:0.7rem;color:var(--faint)}
.post-empty{color:var(--muted);font-size:0.9rem;font-style:italic;padding:2rem 0}

/* ─── RESPONSIVE ─── */
@media(max-width:768px){
  .hero-title-desktop{display:none}
  .hero-title-mobile{display:inline}
  /* Nav */
  .nav-hamburger{display:flex}
  .nav-links{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    flex-direction:column;
    gap:0;
    background:rgba(10,10,15,0.97);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);
    padding:0.5rem 0 1rem
  }
  .nav-links li a{display:block;padding:0.8rem 2rem;font-size:0.9rem}
  nav.nav-open .nav-links{display:flex}
  /* Hero */
  #hero{padding:5rem 1.5rem 2rem;align-items:flex-start}
  .hero-intro{flex-direction:column;gap:1.25rem;margin-bottom:0;padding-bottom:0;border-bottom:none;align-items:center;text-align:center}
  .hero-tag-row{margin-top:0.75rem;justify-content:center}
  .hero-tag{font-size:0.72rem;white-space:nowrap}
  .hero-tag-icon-arrow{display:none}
  .hero-ctas{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem}
  .btn-primary,.btn-ghost{padding:0.65rem 0.75rem;font-size:0.85rem;min-width:unset}
  .hero-portrait{width:144px;order:-1}
  .hero-intro-text{text-align:center}
  h1.hero-name{font-size:clamp(2.2rem,9vw,3.5rem);white-space:nowrap}
  .hero-name br{display:none}
  .hero-title{max-width:100%;font-size:1rem}
  /* Sections */
  section{padding:4rem 1.5rem}
  /* About */
  .about-grid{grid-template-columns:1fr}
  .about-sidebar{position:static;display:flex;flex-direction:row;align-items:flex-start;gap:1.25rem}
  .about-avatar{width:120px;flex-shrink:0;margin-bottom:0}
  .about-links{flex:1}
  /* Timeline */
  .timeline{padding-left:1.25rem}
  .timeline-dot{left:calc(-1.25rem - 4px);top:1rem}
  .timeline-card-left{padding:0.85rem 1rem}
  .timeline-card-right{width:108px;padding:0.5rem}
  .timeline-details{padding:0.85rem 1rem}
  /* Education */
  .edu-grid{grid-template-columns:1fr}
  /* Skills */
  .skills-layout{grid-template-columns:1fr}
  /* Footer */
  .footer-inner{justify-content:center;text-align:center}
  /* Page header */
  .page-header{padding:6rem 1.5rem 3rem}
  /* Works — grid card layout on mobile */
  .works-section{padding:3.5rem 1.5rem}
  .projects-grid-sq{grid-template-columns:1fr}
  .project-sq{aspect-ratio:unset;display:grid;grid-template-columns:117px 1fr;grid-template-areas:"img title" "img link" "desc desc";grid-template-rows:auto auto auto;gap:0 0.75rem;padding:0.75rem;align-items:start}
  .project-sq:hover{transform:none}
  .project-sq-img{grid-area:img;position:static;width:117px;height:117px;border-radius:0.5rem;overflow:hidden;align-self:center}
  .project-sq-img img{width:100%;height:100%;object-fit:cover}
  .project-sq-overlay{display:contents}
  .project-sq-title{grid-area:title;align-self:end;font-size:0.9rem;color:var(--text)}
  .project-sq-link{grid-area:link;align-self:start;max-height:none;opacity:1;margin-top:0.2rem}
  .project-sq-desc{grid-area:desc;max-height:none;opacity:1;margin-top:0.6rem;padding-top:0.6rem;border-top:1px solid var(--border);font-size:0.78rem;color:var(--muted);line-height:1.5}
  /* Blog */
  .blog-body{grid-template-columns:1fr}
  .blog-sidebar{position:static;height:auto;border-right:none;border-bottom:1px solid var(--border);padding:1.5rem;overflow-x:auto}
  .blog-categories{display:grid;grid-template-columns:1fr 1fr;gap:0.4rem}
  .blog-cat-btn{font-size:0.8rem;padding:0.4rem 0.8rem;text-align:center}
  .blog-panel{padding:1.5rem}
}

@media(max-width:538px){
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:1rem 1.5rem}
  .hero-stats .stat-item:nth-child(even){text-align:right}
  .hero-stats .stat-item:nth-child(1){order:1}
  .hero-stats .stat-item:nth-child(2){order:3;text-align:left}
  .hero-stats .stat-item:nth-child(3){order:2;text-align:right}
  .hero-stats .stat-item:nth-child(4){order:4}
  .stat-num{font-size:1.5rem}
  .stat-label{font-size:0.7rem}
}

@media(max-width:480px){
  .projects-grid-sq{grid-template-columns:1fr}
  .hero-stats{gap:0.75rem 1.25rem}
  .hero-portrait{width:130px}
}