:root{
  --bg:#0a0e14;
  --bg-alt:#0d1219;
  --surface:#121821;
  --surface-hover:#161f2b;
  --border:#232d3a;
  --text:#e7ecf3;
  --text-dim:#9aa7b8;
  --text-faint:#5f6b7c;
  --accent:#22e5c0;
  --accent-dim:#1a9e85;
  --accent-2:#f2c811;
  --accent-soft:rgba(34,229,192,.12);
  --radius:14px;
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --max:1100px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--accent);color:#04140f}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
section{position:relative}

/* background texture */
.grid-bg{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 40%, transparent 100%);
}
.noise{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.03;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.progress-bar{
  position:fixed;top:0;left:0;height:2px;width:0%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  z-index:1000;transition:width .1s ease-out;
}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,5vw,64px);
  backdrop-filter:blur(14px);
  background:rgba(10,14,20,.55);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.nav.scrolled{border-bottom-color:var(--border);background:rgba(10,14,20,.85)}
.nav-brand{
  font-family:var(--font-display);font-weight:700;font-size:1.3rem;letter-spacing:.02em;
}
.nav-brand .dot{color:var(--accent)}
.nav-links{display:flex;gap:8px;align-items:center}
.nav-link{
  position:relative;font-size:.9rem;color:var(--text-dim);padding:8px 14px;border-radius:20px;
  transition:color .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text);background:var(--surface)}
.nav-cta{
  font-size:.85rem;font-weight:600;padding:9px 18px;border-radius:20px;
  background:var(--accent);color:#04140f;
  transition:transform .2s ease, box-shadow .2s ease;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 20px -6px var(--accent-soft)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* ===== HERO ===== */
.hero{
  min-height:100vh;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:140px clamp(20px,5vw,64px) 80px;
  position:relative;z-index:2;
  flex-wrap:wrap;
}
.hero-inner{flex:1 1 480px;max-width:640px}
.eyebrow{
  font-family:var(--font-mono);font-size:.85rem;color:var(--accent);
  margin-bottom:20px;letter-spacing:.02em;
}
.hero-title{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.2rem,5.5vw,3.6rem);line-height:1.12;letter-spacing:-.01em;
  margin-bottom:22px;
}
.hero-title .highlight{color:var(--accent)}
.typed-wrap{color:var(--accent-2);white-space:nowrap;display:inline-block;vertical-align:top}
.cursor{display:inline-block;color:var(--accent-2);animation:blink 1s step-start infinite}
@keyframes blink{50%{opacity:0}}

.hero-sub{color:var(--text-dim);font-size:1.05rem;max-width:520px;margin-bottom:34px}

.hero-actions{display:flex;gap:14px;margin-bottom:40px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:10px;font-weight:600;font-size:.95rem;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  border:1px solid transparent;
}
.btn-primary{background:var(--accent);color:#04140f}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 24px -8px var(--accent-soft)}
.btn-ghost{border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent-dim);background:var(--surface)}

.hero-stack{display:flex;flex-wrap:wrap;gap:10px}
.hero-stack span{
  font-family:var(--font-mono);font-size:.78rem;color:var(--text-faint);
  border:1px solid var(--border);padding:6px 12px;border-radius:20px;
}

.hero-visual{flex:1 1 340px;max-width:400px;display:flex;justify-content:center}
.chart-card{
  width:100%;background:var(--surface);border:1px solid var(--border);border-radius:16px;
  padding:20px;box-shadow:0 30px 60px -20px rgba(0,0,0,.6);
  animation:float 6s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.chart-card-head{display:flex;align-items:center;gap:8px;margin-bottom:16px}
.chart-dot{width:9px;height:9px;border-radius:50%;background:var(--border)}
.chart-dot:nth-child(1){background:#ff5f57}
.chart-dot:nth-child(2){background:#febc2e}
.chart-dot:nth-child(3){background:#28c840}
.chart-title{font-family:var(--font-mono);font-size:.75rem;color:var(--text-faint);margin-left:6px}
.chart-svg{width:100%;height:auto;margin-bottom:14px}
.chart-line{fill:none;stroke:var(--accent);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:600;stroke-dashoffset:600;animation:draw 2.2s ease forwards .3s;}
@keyframes draw{to{stroke-dashoffset:0}}
.chart-area{fill:url(#none);fill:rgba(34,229,192,.08);stroke:none}
.chart-bars{display:flex;align-items:flex-end;gap:6px;height:50px;margin-bottom:16px}
.chart-bars span{
  flex:1;background:linear-gradient(180deg,var(--accent-2),rgba(242,200,17,.25));
  border-radius:3px 3px 0 0;animation:grow 1s ease forwards;transform-origin:bottom;
  transform:scaleY(0);
}
@keyframes grow{to{transform:scaleY(1)}}
.chart-bars span:nth-child(1){animation-delay:.1s}
.chart-bars span:nth-child(2){animation-delay:.2s}
.chart-bars span:nth-child(3){animation-delay:.3s}
.chart-bars span:nth-child(4){animation-delay:.4s}
.chart-bars span:nth-child(5){animation-delay:.5s}
.chart-bars span:nth-child(6){animation-delay:.6s}
.chart-bars span:nth-child(7){animation-delay:.7s}
.chart-kpis{display:flex;gap:22px;border-top:1px solid var(--border);padding-top:14px}
.chart-kpis strong{display:block;font-family:var(--font-display);font-size:1.15rem;color:var(--text)}
.chart-kpis small{color:var(--text-faint);font-size:.72rem}

.scroll-cue{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  width:26px;height:40px;border:2px solid var(--border);border-radius:16px;
  display:flex;justify-content:center;padding-top:8px;
}
.scroll-cue span{width:4px;height:8px;background:var(--accent);border-radius:2px;animation:scrollcue 1.6s ease infinite}
@keyframes scrollcue{0%{opacity:1;transform:translateY(0)}100%{opacity:0;transform:translateY(10px)}}

/* ===== SECTIONS ===== */
.section{
  position:relative;z-index:2;
  max-width:var(--max);margin:0 auto;
  padding:120px clamp(20px,5vw,64px) 40px;
}
.section-head{display:flex;align-items:baseline;gap:16px;margin-bottom:56px}
.section-num{font-family:var(--font-mono);color:var(--accent);font-size:.9rem}
.section-head h2{font-family:var(--font-display);font-size:clamp(1.8rem,3.5vw,2.4rem);font-weight:700}

/* reveal animation */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== ABOUT ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-bottom:64px}
.about-text p{color:var(--text-dim);margin-bottom:18px;font-size:1.02rem}
.about-text strong{color:var(--text)}
.about-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.mini-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;transition:border-color .25s ease, transform .25s ease;
}
.mini-card:hover{border-color:var(--accent-dim);transform:translateY(-3px)}
.mini-icon{font-size:1.4rem;display:block;margin-bottom:10px}
.mini-card h3{font-size:.95rem;margin-bottom:6px;font-family:var(--font-display)}
.mini-card p{color:var(--text-faint);font-size:.85rem}

.stack-section{padding-top:16px;border-top:1px solid var(--border)}
.stack-label{font-family:var(--font-mono);font-size:.78rem;color:var(--text-faint);margin:18px 0 12px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  font-family:var(--font-mono);font-size:.78rem;color:var(--text-dim);
  border:1px solid var(--border);padding:7px 13px;border-radius:8px;background:var(--surface);
}
.tag-main{color:var(--accent);border-color:var(--accent-dim);background:var(--accent-soft)}
.tag-row.small .tag{font-size:.72rem;padding:5px 10px}

/* ===== PROJECTS ===== */
.projects{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.project-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;display:flex;flex-direction:column;gap:14px;
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.project-card:hover{transform:translateY(-6px);border-color:var(--accent-dim);box-shadow:0 24px 40px -20px rgba(0,0,0,.5)}
.project-card-progress{border-style:dashed;opacity:.85;align-self:start}
.project-card-wide{grid-column:1 / -1}

.live-embed{
  margin-top:4px;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--bg-alt);
}
.live-embed-head{
  display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--border);
  background:var(--surface);
}
.live-embed iframe{
  width:100%;height:520px;border:none;display:block;background:#fff;
}
@media (max-width:640px){
  .live-embed iframe{height:420px}
}

.project-shot{
  margin-top:4px;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--bg-alt);
}
.project-shot img{width:100%;display:block}
.project-shot figcaption{
  padding:10px 14px;font-size:.78rem;color:var(--text-dim);border-top:1px solid var(--border);
  background:var(--surface);
}

.stat-strip{display:flex;flex-wrap:wrap;gap:22px;padding:16px 0;border-top:1px solid var(--border);margin-top:4px}
.stat-strip strong{display:block;font-family:var(--font-display);font-size:1.2rem;color:var(--accent)}
.stat-strip small{color:var(--text-faint);font-size:.72rem}
.stat-note{color:var(--text-faint);font-size:.78rem;font-style:italic}
.project-top{display:flex;justify-content:space-between;align-items:flex-start}
.project-icon{font-size:1.6rem}
.project-links{display:flex;gap:10px;flex-wrap:wrap}
.icon-link{
  font-size:.75rem;font-family:var(--font-mono);color:var(--text-dim);
  border:1px solid var(--border);padding:6px 10px;border-radius:8px;transition:.2s;
}
.icon-link:hover{border-color:var(--accent-dim);color:var(--text)}
.icon-link-primary{color:var(--accent);border-color:var(--accent-dim)}
.status-pill{
  font-family:var(--font-mono);font-size:.7rem;color:var(--accent-2);
  border:1px solid rgba(242,200,17,.35);padding:5px 10px;border-radius:20px;height:fit-content;
}
.project-card h3{font-family:var(--font-display);font-size:1.15rem;line-height:1.3}
.project-card p{color:var(--text-dim);font-size:.92rem}
.project-card code{font-family:var(--font-mono);color:var(--accent);background:var(--accent-soft);padding:1px 6px;border-radius:4px;font-size:.85em}

.more-link{
  display:inline-block;margin-top:36px;font-family:var(--font-mono);font-size:.9rem;
  color:var(--text-dim);border-bottom:1px solid var(--border);padding-bottom:3px;transition:.2s;
}
.more-link:hover{color:var(--accent);border-color:var(--accent)}

/* ===== TIMELINE ===== */
.timeline{position:relative;padding-left:32px}
.timeline::before{
  content:'';position:absolute;left:5px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(var(--accent-dim),var(--border));
}
.timeline-item{position:relative;padding-bottom:42px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:-32px;top:4px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--accent);
}
.timeline-edu .timeline-dot{border-color:var(--accent-2)}
.timeline-date{font-family:var(--font-mono);font-size:.78rem;color:var(--accent);display:block;margin-bottom:6px}
.timeline-edu .timeline-date{color:var(--accent-2)}
.timeline-content h3{font-family:var(--font-display);font-size:1.1rem;margin-bottom:4px}
.timeline-org{color:var(--text-dim);font-size:.9rem;margin-bottom:8px;font-weight:500}
.timeline-content p:not(.timeline-org){color:var(--text-faint);font-size:.9rem;max-width:600px}
.timeline-content p a{color:var(--accent);border-bottom:1px solid var(--accent-soft)}
.timeline-content p a:hover{border-bottom-color:var(--accent)}

/* ===== CONTACT ===== */
.contact-section{padding-bottom:100px}
.contact-inner{text-align:center;max-width:600px;margin:0 auto}
.contact-lead{color:var(--text-dim);font-size:1.1rem;margin-bottom:32px}
.contact-actions{margin-bottom:28px;display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.contact-social{display:flex;justify-content:center;gap:28px}
.contact-social a{color:var(--text-dim);font-family:var(--font-mono);font-size:.9rem;transition:.2s}
.contact-social a:hover{color:var(--accent)}

.footer{
  position:relative;z-index:2;text-align:center;padding:28px;
  border-top:1px solid var(--border);color:var(--text-faint);font-size:.82rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width:860px){
  .nav-links{
    position:fixed;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(10,14,20,.97);backdrop-filter:blur(14px);
    padding:16px;gap:4px;border-bottom:1px solid var(--border);
    transform:translateY(-140%);transition:transform .3s ease;
  }
  .nav-links.open{transform:translateY(0)}
  .nav-link{padding:14px 16px}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .about-cards{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .about-cards{grid-template-columns:1fr}
  .contact-social{gap:18px;flex-direction:column}
}