:root {
  --bg: #080a0c; --surface: #0f1215; --border: #1e2328;
  --accent: #00e5ff; --accent2: #ff6b35; --accent3: #7fff6b;
  --text: #c8d0d8; --text-dim: #4a5360; --text-bright: #eef2f7;
  --mono: 'Space Mono', monospace; --sans: 'Syne', sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { background:var(--bg); color:var(--text); font-family:var(--sans); min-height:100vh; overflow-x:hidden; }

nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:20px 48px; background:rgba(8,10,12,0.88);
  backdrop-filter:blur(12px); border-bottom:1px solid var(--border);
}
.nav-logo { font-family:var(--mono); font-size:1rem; color:var(--accent); letter-spacing:0.1em; text-decoration:none; }
.nav-logo span { color:var(--text-dim); }
.nav-links { display:flex; gap:32px; list-style:none; }
.nav-links li a { font-family:var(--mono); font-size:0.72rem; color:var(--text-dim); text-decoration:none; letter-spacing:0.12em; text-transform:uppercase; transition:color 0.2s; }
.nav-links li a:hover, .nav-links li a.active { color:var(--accent); }
.container { max-width:1100px; margin:0 auto; padding:0 48px; }

/* HOME */
.hero { min-height:100vh; display:flex; align-items:center; padding-top:80px; position:relative; }
.hero-grid {
  position:absolute; inset:0;
  background-image:linear-gradient(rgba(0,229,255,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,0.03) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,black 40%,transparent 100%);
}
.hero-content { position:relative; z-index:2; }
.hero-tag { font-family:var(--mono); font-size:0.72rem; color:var(--accent); letter-spacing:0.2em; text-transform:uppercase; margin-bottom:24px; display:flex; align-items:center; gap:12px; }
.hero-tag::before { content:''; display:block; width:32px; height:1px; background:var(--accent); }
.hero-name { font-size:clamp(1.75rem,3.5vw,2.5rem); font-weight:800; line-height:1.1; color:var(--text-bright); letter-spacing:-0.03em; margin-bottom:28px; }
.hero-name em { font-style:normal; font-size:clamp(2.25rem,5vw,4rem); line-height:0.95; -webkit-text-stroke:1px var(--accent); color:transparent; }
.hero-desc { font-family:var(--mono); font-size:0.85rem; color:var(--text-dim); line-height:1.8; max-width:500px; margin-bottom:48px; }
.hero-cta { display:flex; gap:16px; flex-wrap:wrap; }
.btn { font-family:var(--mono); font-size:0.72rem; letter-spacing:0.12em; text-transform:uppercase; padding:14px 28px; border:1px solid var(--accent); color:var(--accent); background:transparent; cursor:pointer; transition:all 0.2s; text-decoration:none; display:inline-block; }
.btn:hover { background:var(--accent); color:var(--bg); }
.btn-ghost { border-color:var(--border); color:var(--text-dim); }
.btn-ghost:hover { border-color:var(--text-dim); background:transparent; color:var(--text-bright); }
.hero-orb { position:absolute; right:-10%; top:50%; transform:translateY(-50%); width:520px; height:520px; border-radius:50%; background:radial-gradient(circle,rgba(0,229,255,0.06) 0%,transparent 70%); border:1px solid rgba(0,229,255,0.08); pointer-events:none; z-index:1; }
.hero-orb::before { content:''; position:absolute; inset:40px; border-radius:50%; border:1px solid rgba(0,229,255,0.05); }
.hero-orb::after  { content:''; position:absolute; inset:80px; border-radius:50%; border:1px solid rgba(0,229,255,0.04); }

.home-pillars { display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--border); border:1px solid var(--border); margin-bottom:64px; }
.pillar { background:var(--bg); padding:32px; }
.pillar-icon { font-size:1.4rem; margin-bottom:14px; }
.pillar-title { font-size:1rem; font-weight:700; color:var(--text-bright); margin-bottom:8px; }
.pillar-desc { font-family:var(--mono); font-size:0.72rem; color:var(--text-dim); line-height:1.6; }

.stats-row { display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--border); border-left:1px solid var(--border); margin-bottom:80px; }
.stat { padding:28px 32px; border-right:1px solid var(--border); border-bottom:1px solid var(--border); }
.stat-num { font-family:var(--mono); font-size:2rem; color:var(--accent); font-weight:700; display:block; margin-bottom:6px; }
.stat-label { font-family:var(--mono); font-size:0.65rem; color:var(--text-dim); letter-spacing:0.15em; text-transform:uppercase; }
.home-featured { padding-bottom:100px; }
.section-header { display:flex; align-items:baseline; gap:20px; margin-bottom:40px; }
.section-title { font-size:1.8rem; font-weight:800; color:var(--text-bright); letter-spacing:-0.02em; }
.section-num { font-family:var(--mono); font-size:0.72rem; color:var(--text-dim); letter-spacing:0.15em; }
.featured-grid { display:grid; grid-template-columns:2fr 1fr; gap:1px; background:var(--border); border:1px solid var(--border); }
.feat-card { background:var(--bg); padding:40px; cursor:pointer; transition:background 0.2s; position:relative; text-decoration:none; display:block; color:inherit; }
.feat-card:hover { background:var(--surface); }
.feat-card-tag { font-family:var(--mono); font-size:0.65rem; color:var(--accent2); letter-spacing:0.15em; text-transform:uppercase; margin-bottom:16px; }
.feat-card h3 { font-size:1.3rem; font-weight:700; color:var(--text-bright); margin-bottom:12px; letter-spacing:-0.01em; }
.feat-card p { font-family:var(--mono); font-size:0.78rem; color:var(--text-dim); line-height:1.7; }
.feat-arrow { position:absolute; bottom:28px; right:32px; font-size:1.2rem; color:var(--accent); opacity:0; transition:opacity 0.2s,transform 0.2s; transform:translateX(-6px); }
.feat-card:hover .feat-arrow { opacity:1; transform:translateX(0); }
.feat-stack { display:flex; flex-direction:column; gap:1px; }

/* PROJECTS */
.page-content { padding-top:140px; padding-bottom:100px; }
.page-heading { margin-bottom:64px; }
.page-eyebrow { font-family:var(--mono); font-size:0.72rem; color:var(--accent); letter-spacing:0.2em; text-transform:uppercase; margin-bottom:16px; display:flex; align-items:center; gap:10px; }
.page-eyebrow::before { content:''; display:block; width:24px; height:1px; background:var(--accent); }
.page-title { font-size:clamp(2.2rem,5vw,4rem); font-weight:800; color:var(--text-bright); letter-spacing:-0.03em; line-height:1; margin-bottom:20px; }
.page-sub { font-family:var(--mono); font-size:0.82rem; color:var(--text-dim); max-width:560px; line-height:1.7; }
.filter-tabs { display:flex; gap:1px; background:var(--border); border:1px solid var(--border); margin-bottom:1px; }
.filter-tab { font-family:var(--mono); font-size:0.68rem; letter-spacing:0.12em; text-transform:uppercase; padding:12px 24px; background:var(--bg); color:var(--text-dim); border:none; cursor:pointer; transition:all 0.2s; }
.filter-tab:hover { color:var(--text-bright); }
.filter-tab.active { background:var(--surface); color:var(--accent); }
.projects-list { display:flex; flex-direction:column; gap:1px; background:var(--border); border:1px solid var(--border); border-top:none; }
.project-row { background:var(--bg); display:grid; grid-template-columns:80px 1fr auto; align-items:center; padding:36px 40px; transition:background 0.2s; position:relative; overflow:hidden; }
.project-row::before { content:''; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--accent); transform:scaleY(0); transition:transform 0.2s; transform-origin:bottom; }
.project-row[data-cat="software"]::before { background:var(--accent3); }
.project-row[data-cat="hardware"]::before { background:var(--accent2); }
.project-row:hover { background:var(--surface); }
.project-row:hover::before { transform:scaleY(1); }
.project-row.hidden { display:none; }
.proj-num { font-family:var(--mono); font-size:0.7rem; color:var(--text-dim); letter-spacing:0.1em; }
.proj-info h3 { font-size:1.1rem; font-weight:700; color:var(--text-bright); margin-bottom:6px; letter-spacing:-0.01em; }
.proj-info p { font-family:var(--mono); font-size:0.74rem; color:var(--text-dim); line-height:1.5; }
.proj-tags { display:flex; flex-direction:column; align-items:flex-end; gap:6px; min-width:110px; }
.tag { font-family:var(--mono); font-size:0.6rem; letter-spacing:0.1em; text-transform:uppercase; border:1px solid; padding:3px 8px; }
.tag.physics { color:var(--accent); border-color:rgba(0,229,255,0.25); }
.tag.software { color:var(--accent3); border-color:rgba(127,255,107,0.25); }
.tag.hardware { color:var(--accent2); border-color:rgba(255,107,53,0.25); }

/* FUTURE */
.future-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--border); border:1px solid var(--border); }
.future-card { background:var(--bg); padding:40px; position:relative; overflow:hidden; transition:background 0.2s; display:flex; flex-direction:column; }
.future-card:hover { background:var(--surface); }
.future-card::after { content:attr(data-index); position:absolute; right:-10px; top:-20px; font-family:var(--sans); font-size:7rem; font-weight:800; color:rgba(0,229,255,0.03); line-height:1; pointer-events:none; }
.fc-status { font-family:var(--mono); font-size:0.62rem; letter-spacing:0.15em; text-transform:uppercase; margin-bottom:20px; display:flex; align-items:center; gap:8px; }
.fc-status.planning { color:var(--accent2); }
.fc-status.researching { color:var(--accent); }
.fc-status.building { color:var(--accent3); }
.fc-dot { width:6px; height:6px; border-radius:50%; background:currentColor; animation:pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }
.future-card h3 { font-size:1.2rem; font-weight:700; color:var(--text-bright); margin-bottom:12px; letter-spacing:-0.01em; }
.future-card p { font-family:var(--mono); font-size:0.75rem; color:var(--text-dim); line-height:1.7; margin-bottom:24px; flex:1; }
.prog-label { display:flex; justify-content:space-between; font-family:var(--mono); font-size:0.62rem; color:var(--text-dim); margin-bottom:8px; }
.prog-track { height:2px; background:var(--border); position:relative; }
.prog-fill { position:absolute; left:0; top:0; bottom:0; background:var(--accent); }

/* ABOUT */
.about-grid { display:grid; grid-template-columns:1fr 2fr; gap:1px; background:var(--border); border:1px solid var(--border); }
.about-sidebar { background:var(--bg); padding:48px 40px; }
.avatar-ring { width:96px; height:96px; border-radius:50%; border:1px solid var(--accent); display:flex; align-items:center; justify-content:center; margin-bottom:24px; position:relative; overflow:hidden; }
.avatar-ring::before { content:''; position:absolute; inset:-6px; border-radius:50%; border:1px dashed rgba(0,229,255,0.25); animation:spin 12s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }
.avatar-initials { font-family:var(--sans); font-size:2rem; font-weight:800; color:var(--accent); }
.avatar-img { width:100%; height:100%; object-fit:cover; display:block; }
.about-name { font-size:1.4rem; font-weight:800; color:var(--text-bright); margin-bottom:6px; }
.about-role { font-family:var(--mono); font-size:0.7rem; color:var(--accent); letter-spacing:0.12em; text-transform:uppercase; margin-bottom:28px; }
.about-contact-item { display:flex; align-items:center; gap:10px; font-family:var(--mono); font-size:0.72rem; color:var(--text-dim); margin-bottom:12px; }
.contact-icon { color:var(--accent); }
.skills-section { margin-top:32px; }
.skills-label { font-family:var(--mono); font-size:0.62rem; color:var(--text-dim); letter-spacing:0.15em; text-transform:uppercase; margin-bottom:12px; padding-bottom:8px; border-bottom:1px solid var(--border); }
.skill-group { margin-bottom:16px; }
.skill-group-name { font-family:var(--mono); font-size:0.6rem; color:var(--accent2); letter-spacing:0.12em; text-transform:uppercase; margin-bottom:8px; }
.skill-chip { display:inline-block; font-family:var(--mono); font-size:0.62rem; color:var(--text-dim); border:1px solid var(--border); padding:3px 8px; margin:3px 3px 0 0; transition:border-color 0.2s,color 0.2s; cursor:default; }
.skill-chip:hover { border-color:var(--accent); color:var(--accent); }
.about-body { background:var(--bg); padding:48px; }
.about-body h2 { font-size:1.4rem; font-weight:800; color:var(--text-bright); margin-bottom:20px; letter-spacing:-0.02em; }
.about-body h3 { font-family:var(--mono); font-size:0.72rem; color:var(--accent); letter-spacing:0.1em; text-transform:uppercase; margin:32px 0 12px; }
.about-body p { font-family:var(--mono); font-size:0.79rem; color:var(--text-dim); line-height:1.8; margin-bottom:16px; }
.platform-badges { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:24px; }
.platform-badge { font-family:var(--mono); font-size:0.65rem; color:var(--text-dim); border:1px solid var(--border); padding:6px 14px; display:flex; align-items:center; gap:6px; transition:all 0.2s; cursor:default; }
.platform-badge:hover { border-color:var(--accent3); color:var(--accent3); }
.timeline { margin-top:8px; }
.tl-item { display:grid; grid-template-columns:100px 1fr; gap:24px; margin-bottom:24px; }
.tl-year { font-family:var(--mono); font-size:0.7rem; color:var(--accent); text-align:right; padding-top:2px; }
.tl-content h4 { font-size:0.9rem; font-weight:700; color:var(--text-bright); margin-bottom:4px; }
.tl-content p { font-family:var(--mono); font-size:0.71rem; color:var(--text-dim); margin-bottom:0; line-height:1.5; }

/* BLOG */
.blog-grid { display:grid; grid-template-columns:2fr 1fr; gap:48px; }
.blog-post { border:1px solid var(--border); padding:36px 40px; margin-bottom:1px; background:var(--bg); cursor:pointer; transition:background 0.2s; }
.blog-post:hover { background:var(--surface); }
.post-meta { display:flex; align-items:center; gap:16px; margin-bottom:18px; }
.post-date { font-family:var(--mono); font-size:0.68rem; color:var(--text-dim); letter-spacing:0.1em; }
.post-cat { font-family:var(--mono); font-size:0.6rem; color:var(--accent2); letter-spacing:0.12em; text-transform:uppercase; border:1px solid rgba(255,107,53,0.3); padding:2px 8px; }
.post-cat.sw { color:var(--accent3); border-color:rgba(127,255,107,0.3); }
.blog-post h3 { font-size:1.15rem; font-weight:700; color:var(--text-bright); margin-bottom:12px; letter-spacing:-0.01em; line-height:1.25; }
.blog-post p { font-family:var(--mono); font-size:0.75rem; color:var(--text-dim); line-height:1.7; }
.post-read { display:inline-block; margin-top:18px; font-family:var(--mono); font-size:0.68rem; color:var(--accent); letter-spacing:0.1em; text-transform:uppercase; border-bottom:1px solid rgba(0,229,255,0.3); padding-bottom:2px; }
.sidebar-widget { border:1px solid var(--border); padding:28px 24px; margin-bottom:24px; background:var(--bg); }
.widget-title { font-family:var(--mono); font-size:0.65rem; color:var(--text-dim); letter-spacing:0.15em; text-transform:uppercase; margin-bottom:18px; padding-bottom:10px; border-bottom:1px solid var(--border); }
.tag-cloud { display:flex; flex-wrap:wrap; gap:7px; }
.tag-btn { font-family:var(--mono); font-size:0.6rem; color:var(--text-dim); border:1px solid var(--border); padding:4px 10px; cursor:pointer; background:none; transition:all 0.2s; }
.tag-btn:hover { border-color:var(--accent); color:var(--accent); }
.recent-list { list-style:none; }
.recent-item { padding:9px 0; border-bottom:1px solid var(--border); font-family:var(--mono); font-size:0.71rem; color:var(--text-dim); cursor:pointer; transition:color 0.2s; }
.recent-item:hover { color:var(--accent); }
.recent-item:last-child { border-bottom:none; }

footer { border-top:1px solid var(--border); padding:40px 48px; display:flex; align-items:center; justify-content:space-between; }
.footer-copy { font-family:var(--mono); font-size:0.68rem; color:var(--text-dim); letter-spacing:0.08em; }
.footer-links { display:flex; gap:24px; }
.footer-link { font-family:var(--mono); font-size:0.68rem; color:var(--text-dim); text-decoration:none; letter-spacing:0.08em; transition:color 0.2s; }
.footer-link:hover { color:var(--accent); }

@media (max-width:768px) {
  nav { padding:16px 20px; }
  .nav-links { gap:14px; }
  .nav-links li a { font-size:0.6rem; }
  .container { padding:0 20px; }
  .hero-name { font-size:1.5rem; }
  .hero-name em { font-size:2.1rem; }
  .hero-orb { display:none; }
  .home-pillars,.stats-row,.featured-grid,.future-grid,.about-grid,.blog-grid { grid-template-columns:1fr; }
  .project-row { grid-template-columns:56px 1fr; }
  .proj-tags { display:none; }
  footer { flex-direction:column; gap:16px; text-align:center; }
}