:root{
  --bg: #060b14;
  --bg-alt: #0a1220;
  --panel: #0e1a2b;
  --line: #1c2c42;
  --cyan: #4fd8e8;
  --cyan-dim: #2a7f8c;
  --amber: #e8a94f;
  --text: #dce8f0;
  --text-dim: #7691a8;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-mono);
  overflow-x:hidden;
  position:relative;
}

.grid-overlay{
  position:fixed;inset:0;pointer-events:none;z-index:1;
  background-image:
    linear-gradient(rgba(79,216,232,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,216,232,0.035) 1px, transparent 1px);
  background-size:40px 40px;
}

#circuit-bg{
  position:fixed;inset:0;z-index:0;width:100%;height:100%;opacity:0.5;
}

section, nav, footer{position:relative;z-index:2;}

::selection{background:var(--cyan);color:var(--bg);}

/* ---------- NAV ---------- */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 48px;
  background:rgba(6,11,20,0.7);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-logo{font-family:var(--font-display);font-weight:700;font-size:1.3rem;letter-spacing:1px;}
.nav-logo span{color:var(--cyan);}
.nav-links{display:flex;gap:28px;}
.nav-links a{color:var(--text-dim);text-decoration:none;font-size:0.85rem;letter-spacing:0.5px;transition:color .2s;}
.nav-links a:hover{color:var(--cyan);}
.nav-cta{
  border:1px solid var(--cyan-dim);color:var(--cyan);text-decoration:none;
  padding:8px 16px;font-size:0.8rem;border-radius:2px;transition:all .2s;
}
.nav-cta:hover{background:var(--cyan);color:var(--bg);}

@media(max-width:900px){
  .nav-links{display:none;}
  .navbar{padding:18px 20px;}
}

/* ---------- HERO ---------- */
.hero{
  min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:0 20px;
}
.hero-eyebrow{color:var(--cyan);font-size:0.8rem;letter-spacing:2px;margin-bottom:20px;opacity:0.8;}
.hero-name{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.5rem, 8vw, 6rem);
  letter-spacing:2px;line-height:1;
  background:linear-gradient(180deg, var(--text) 40%, var(--cyan-dim));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-role{
  font-size:clamp(1rem,3vw,1.4rem);color:var(--cyan);margin:20px 0 24px;
  display:flex;gap:8px;justify-content:center;align-items:center;
}
.cursor{animation:blink 1s step-start infinite;}
@keyframes blink{50%{opacity:0;}}
.hero-desc{max-width:600px;color:var(--text-dim);font-size:0.95rem;line-height:1.7;font-family:var(--font-mono);}
.hero-desc strong{color:var(--cyan);}
.hero-actions{display:flex;gap:16px;margin-top:36px;}
.btn-primary, .btn-ghost{
  padding:13px 28px;font-family:var(--font-mono);font-size:0.85rem;text-decoration:none;
  border-radius:2px;transition:all .2s;letter-spacing:0.5px;
}
.btn-primary{background:var(--cyan);color:var(--bg);font-weight:600;}
.btn-primary:hover{box-shadow:0 0 24px rgba(79,216,232,0.5);transform:translateY(-2px);}
.btn-ghost{border:1px solid var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}

.scroll-indicator{
  position:absolute;bottom:36px;display:flex;flex-direction:column;align-items:center;gap:8px;
  color:var(--text-dim);font-size:0.7rem;letter-spacing:2px;
}
.scroll-line{width:1px;height:40px;background:linear-gradient(var(--cyan), transparent);animation:scrollpulse 1.8s ease-in-out infinite;}
@keyframes scrollpulse{0%,100%{opacity:0.3;}50%{opacity:1;}}

/* ---------- SECTIONS ---------- */
.section{padding:110px 48px;max-width:1200px;margin:0 auto;}
.section-title{
  font-family:var(--font-display);font-size:clamp(1.5rem,3vw,2.2rem);font-weight:600;
  margin-bottom:50px;display:flex;align-items:center;gap:16px;
}
.tag{
  font-family:var(--font-mono);font-size:0.8rem;color:var(--bg);background:var(--cyan);
  padding:4px 10px;border-radius:2px;font-weight:600;
}
@media(max-width:700px){.section{padding:80px 20px;}}

/* ---------- STATS ---------- */
.stats-grid{
  display:grid;grid-template-columns:repeat(auto-fit, minmax(150px,1fr));gap:2px;
  background:var(--line);border:1px solid var(--line);
}
.stat-card{
  background:var(--panel);padding:36px 20px;text-align:center;transition:background .2s;
}
.stat-card:hover{background:#101f33;}
.stat-num{
  font-family:var(--font-display);font-size:2.6rem;font-weight:700;color:var(--cyan);
}
.stat-label{color:var(--text-dim);font-size:0.8rem;letter-spacing:1px;margin-top:6px;text-transform:uppercase;}

/* ---------- SKILLS ---------- */
.skills-wrap{display:flex;gap:60px;align-items:center;flex-wrap:wrap;justify-content:center;}
#radar-chart{max-width:100%;}
.skills-bars{flex:1;min-width:280px;max-width:480px;display:flex;flex-direction:column;gap:16px;}
.skill-row{display:grid;grid-template-columns:140px 1fr 44px;align-items:center;gap:12px;font-size:0.85rem;}
.bar{height:6px;background:var(--line);border-radius:3px;overflow:hidden;}
.fill{
  height:100%;width:0;background:linear-gradient(90deg,var(--cyan-dim),var(--cyan));
  border-radius:3px;transition:width 1.2s cubic-bezier(.2,.8,.2,1);
}
.fill.animated{width:var(--w);}
.skill-row em{color:var(--cyan);font-style:normal;text-align:right;}

/* ---------- TIMELINE ---------- */
.timeline{position:relative;padding-left:32px;border-left:1px solid var(--line);}
.timeline-item{position:relative;padding-bottom:36px;}
.timeline-item::before{
  content:"";position:absolute;left:-38px;top:4px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);
}
.timeline-item .t-year{color:var(--cyan);font-size:0.8rem;letter-spacing:1px;}
.timeline-item .t-title{font-family:var(--font-display);font-size:1.1rem;font-weight:600;margin:4px 0;}
.timeline-item .t-desc{color:var(--text-dim);font-size:0.85rem;}

/* ---------- PROJECTS ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.filter-btn{
  background:transparent;border:1px solid var(--line);color:var(--text-dim);
  padding:8px 16px;font-family:var(--font-mono);font-size:0.8rem;border-radius:20px;
  cursor:pointer;transition:all .2s;
}
.filter-btn:hover{border-color:var(--cyan);color:var(--cyan);}
.filter-btn.active{background:var(--cyan);color:var(--bg);border-color:var(--cyan);font-weight:600;}

.project-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(300px,1fr));gap:20px;}
.project-card{
  background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:24px;
  transition:transform .25s, border-color .25s, box-shadow .25s;
  display:flex;flex-direction:column;gap:12px;
}
.project-card:hover{
  transform:translateY(-6px);border-color:var(--cyan-dim);
  box-shadow:0 12px 30px rgba(0,0,0,0.4), 0 0 0 1px rgba(79,216,232,0.15);
}
.pc-top{display:flex;justify-content:space-between;align-items:flex-start;}
.pc-title{font-family:var(--font-display);font-weight:600;font-size:1.05rem;}
.pc-cat{font-size:0.7rem;color:var(--cyan);border:1px solid var(--cyan-dim);padding:2px 8px;border-radius:12px;white-space:nowrap;}
.pc-desc{color:var(--text-dim);font-size:0.82rem;line-height:1.5;flex:1;}
.pc-tags{display:flex;flex-wrap:wrap;gap:6px;}
.pc-tag{font-size:0.7rem;background:var(--bg-alt);color:var(--text-dim);padding:3px 8px;border-radius:3px;}
.pc-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:6px;}
.pc-diff{color:var(--amber);font-size:0.85rem;letter-spacing:2px;}
.pc-completion{font-size:0.75rem;color:var(--text-dim);}
.pc-completion b{color:var(--cyan);}

/* ---------- AWARDS ---------- */
.awards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;}
.award-card{
  background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:22px;
  display:flex;gap:16px;align-items:flex-start;transition:border-color .2s;
}
.award-card:hover{border-color:var(--cyan-dim);}
.award-medal{font-size:1.8rem;}
.award-title{font-family:var(--font-display);font-weight:600;font-size:0.95rem;}
.award-place{color:var(--cyan);font-size:0.8rem;margin:4px 0;}
.award-org{color:var(--text-dim);font-size:0.78rem;}

/* ---------- CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;}
.contact-card{
  background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:22px;
  text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:6px;
  transition:all .2s;
}
.contact-card:hover{border-color:var(--cyan);transform:translateY(-4px);}
.c-label{font-size:0.7rem;color:var(--text-dim);letter-spacing:2px;text-transform:uppercase;}
.c-val{font-family:var(--font-display);font-weight:600;color:var(--cyan);}

/* ---------- FOOTER ---------- */
.footer{text-align:center;padding:36px 20px;color:var(--text-dim);font-size:0.78rem;border-top:1px solid var(--line);}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
}

/* focus visibility */
a:focus-visible, button:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}