/* ===== Tokens ===== */
:root{
  --primary:#6D5DFB;
  --secondary:#18181B;
  --accent:#6D5DFB;
  --bg:#0F1115;
  --surface:#18181B;
  --surface-2:#1D1E24;
  --text-primary:#FFFFFF;
  --text-secondary:#A1A1AA;
  --border:#27272A;
  --radius-card:8px;
  --radius-control:8px;
  --radius-lg:18px;
  --radius-pill:9999px;
  --section-pad:80px;
  --gap:16px;
  --card-pad:24px;
  --font-display:"Inter",sans-serif;
  --font-mono:"JetBrains Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text-primary);
  font-family:var(--font-mono);
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}

.container{
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}

/* Background canvas + noise */
#bg-canvas{
  position:fixed;inset:0;
  width:100%;height:100%;
  z-index:0;
  opacity:.55;
  pointer-events:none;
}
.noise-overlay{
  position:fixed;inset:0;
  z-index:1;
  pointer-events:none;
  background-image:radial-gradient(circle at 1px 1px, rgba(255,255,255,.035) 1px, transparent 0);
  background-size:3px 3px;
  mix-blend-mode:overlay;
}
section, header, footer{position:relative;z-index:2}

/* ===== Typography ===== */
.display-lg{
  font-family:var(--font-display);
  font-size:64px;
  font-weight:500;
  line-height:1.04;
  letter-spacing:0;
}
.section-title{
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.15;
  margin:12px 0 28px;
  max-width:640px;
}
.section-label{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
}
.body-text{
  color:var(--text-secondary);
  font-size:16px;
  line-height:1.7;
  margin-bottom:18px;
  max-width:560px;
}
.label-md{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--text-secondary);
}
.label-md.accent{color:var(--accent)}
.grad-text{
  background:linear-gradient(120deg,var(--primary),#a99bff 60%,#6D5DFB);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--text-secondary);
  margin-bottom:18px;
  letter-spacing:.04em;
}

/* ===== Nav ===== */
.nav{
  position:fixed;top:0;left:0;right:0;
  z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(15,17,21,.7);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.nav.scrolled{border-color:var(--border)}
.nav-inner{
  max-width:1180px;margin:0 auto;padding:18px 32px;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{
  font-family:var(--font-display);
  font-weight:700;font-size:18px;letter-spacing:.02em;
}
.nav-logo .dot{color:var(--accent)}
.nav-links{display:flex;gap:28px}
.nav-links a{
  font-size:13px;color:var(--text-secondary);
  transition:color .2s ease;
  position:relative;
}
.nav-links a:hover, .nav-links a.active{color:var(--text-primary)}
.nav-links a.active::after{
  content:"";position:absolute;left:0;bottom:-6px;width:100%;height:1px;background:var(--accent);
}
.nav-cta{padding:8px 16px;font-size:13px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:22px;height:2px;background:var(--text-primary);display:block;border-radius:2px}

/* ===== Buttons ===== */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;
  font-family:var(--font-mono);font-weight:600;font-size:13px;
  padding:12px 22px;border-radius:var(--radius-control);
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease;
  box-shadow:0 0 0 0 rgba(109,93,251,.0);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 30px -8px rgba(109,93,251,.55);
}
.btn-primary .arrow{transition:transform .25s ease}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:10px 18px;font-size:12px}
.btn-ghost{
  display:inline-flex;align-items:center;
  border:1px solid var(--border);color:var(--text-primary);
  font-family:var(--font-mono);font-weight:600;font-size:13px;
  padding:11px 20px;border-radius:var(--radius-control);
  transition:border-color .2s ease, background .2s ease;
}
.btn-ghost:hover{border-color:var(--accent);background:rgba(109,93,251,.08)}

.pill{
  display:inline-flex;align-items:center;
  border:1px solid var(--border);
  border-radius:var(--radius-pill);
  padding:6px 14px;font-size:12px;color:var(--text-secondary);
  background:var(--surface);
}

/* ===== Hero ===== */
.hero{
  min-height:100vh;
  display:flex;flex-direction:column;justify-content:center;
  padding-top:120px;padding-bottom:60px;
}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;
  gap:60px;align-items:center;
}
.hero-sub{
  color:var(--text-secondary);max-width:520px;
  font-size:17px;line-height:1.7;margin:22px 0 32px;
}
.hero-actions{display:flex;gap:16px;margin-bottom:32px;flex-wrap:wrap}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap}

.hero-visual{display:flex;flex-direction:column;align-items:center;gap:28px;position:relative}

/* ===== Glass surface (the "fluid glass" treatment, in CSS) ===== */
.glass{
  background:rgba(24,24,27,.55);
  border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
}

/* ===== Profile card ===== */
.pc-wrapper{
  --pointer-x:50%;--pointer-y:50%;
  --pointer-from-center:0;--pointer-from-left:.5;--pointer-from-top:.5;
  --rotate-x:0deg;--rotate-y:0deg;
  --card-opacity:0;
  position:relative;width:min(340px,100%);
  perspective:900px;touch-action:none;
}
.pc-glow{
  position:absolute;inset:8%;z-index:0;pointer-events:none;
  background:radial-gradient(circle at var(--pointer-x) var(--pointer-y),
    rgba(109,93,251,.6) 0%, transparent 55%);
  filter:blur(46px) saturate(1.2);
  opacity:calc(.85 * var(--card-opacity));
  transition:opacity .3s ease;
}
.pc-shell{position:relative;z-index:1}
.pc-card{
  position:relative;aspect-ratio:.718;max-height:460px;
  border:1px solid var(--border);border-radius:var(--radius-lg);
  background:var(--surface);overflow:hidden;backface-visibility:hidden;
  box-shadow:0 30px 70px -30px rgba(109,93,251,.55);
  transform:translateZ(0) rotateX(0deg) rotateY(0deg);
  transition:transform .9s ease;
}
.pc-wrapper.active{--card-opacity:1}
.pc-wrapper.active .pc-card{
  transition:none;
  transform:translateZ(0) rotateX(var(--rotate-y)) rotateY(var(--rotate-x));
}
.pc-wrapper.entering .pc-card{transition:transform .18s ease-out}
.pc-inside{
  position:absolute;inset:0;
  background-image:linear-gradient(145deg,rgba(109,93,251,.3),rgba(24,24,27,0) 60%);
}
.pc-photo{position:absolute;inset:0;z-index:1}
.pc-photo img{
  width:100%;height:100%;object-fit:cover;object-position:center 15%;
  transform:translate(calc((var(--pointer-from-left) - .5) * -8px),
                      calc((var(--pointer-from-top) - .5) * -8px)) scale(1.07);
  transition:transform .15s ease-out;
}
.pc-photo::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 38%,rgba(15,17,21,.92) 90%);
}
/* Holographic sweep, tinted to the site's purple instead of full rainbow */
.pc-shine{
  position:absolute;inset:0;z-index:3;pointer-events:none;
  background:
    repeating-linear-gradient(0deg,
      rgba(109,93,251,.55) 0%, rgba(169,155,255,.5) 4%,
      rgba(93,206,251,.42) 8%, rgba(109,93,251,.55) 12%),
    radial-gradient(farthest-corner circle at var(--pointer-x) var(--pointer-y),
      rgba(255,255,255,.2) 8%, rgba(0,0,0,.28) 70%);
  background-size:100% 260%, 200% 200%;
  background-position:0 calc(var(--pointer-from-top) * 100%), center;
  background-blend-mode:color-dodge;
  mix-blend-mode:color-dodge;
  filter:brightness(.5) contrast(1.4) saturate(.7);
  opacity:calc(.22 + var(--card-opacity) * .4);
  transition:opacity .5s ease;
}
.pc-glare{
  position:absolute;inset:0;z-index:4;pointer-events:none;
  background:radial-gradient(farthest-corner circle at var(--pointer-x) var(--pointer-y),
    rgba(199,190,255,.42) 10%, rgba(15,17,21,.7) 80%);
  mix-blend-mode:overlay;
  filter:brightness(.9) contrast(1.15);
}
.pc-details{
  position:absolute;left:0;right:0;bottom:96px;z-index:5;
  text-align:center;pointer-events:none;
  transform:translate3d(calc(var(--pointer-from-left) * -6px + 3px),
                        calc(var(--pointer-from-top) * -6px + 3px),0);
}
.pc-details h3{font-family:var(--font-display);font-size:26px;font-weight:600;letter-spacing:-.01em}
.pc-details p{font-size:12px;color:var(--text-secondary);margin-top:5px}
.pc-user-info{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:6;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:12px;
}
.pc-user-details{display:flex;align-items:center;gap:10px;min-width:0}
.pc-mini-avatar{
  width:36px;height:36px;border-radius:50%;overflow:hidden;flex-shrink:0;
  border:1px solid var(--border);
}
.pc-mini-avatar img{width:100%;height:100%;object-fit:cover;object-position:center 15%}
.pc-user-text{display:flex;flex-direction:column;gap:3px;min-width:0}
.pc-handle{font-size:12px;font-weight:600}
.pc-status{font-size:11px;color:var(--text-secondary)}
.pc-contact-btn{
  flex-shrink:0;
  border:1px solid rgba(109,93,251,.4);background:rgba(109,93,251,.16);
  color:var(--text-primary);font-family:var(--font-mono);font-weight:600;font-size:11px;
  padding:8px 14px;border-radius:var(--radius-control);
  transition:background .2s ease, border-color .2s ease, transform .2s ease;
}
.pc-contact-btn:hover{background:rgba(109,93,251,.32);border-color:var(--accent);transform:translateY(-1px)}

.scroll-cue{
  margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--text-secondary);
}
.scroll-cue span{
  width:1px;height:32px;background:linear-gradient(var(--accent),transparent);
  animation:scrollcue 1.6s ease-in-out infinite;
}
@keyframes scrollcue{0%{opacity:0;transform:translateY(-6px)}50%{opacity:1}100%{opacity:0;transform:translateY(10px)}}

/* ===== Sections ===== */
.section{padding:var(--section-pad) 0}
.section.alt{background:linear-gradient(180deg, rgba(24,24,27,.4), transparent)}

/* About */
.about-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:60px;align-items:start}
.edu-card{
  margin-top:28px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:var(--card-pad);
}
.edu-row{display:flex;justify-content:space-between;margin-bottom:10px}
.edu-card h3{font-family:var(--font-display);font-weight:600;font-size:17px;margin-bottom:6px}
.edu-card p{color:var(--text-secondary);font-size:14px}

.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.stat-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:var(--card-pad);
  transition:transform .3s ease, border-color .3s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.stat-num{
  display:block;font-family:var(--font-display);font-weight:700;
  font-size:28px;color:var(--accent);margin-bottom:10px;
}
.stat-label{color:var(--text-secondary);font-size:13px;line-height:1.5}

/* Timeline */
.timeline{position:relative;margin-top:20px;padding-left:28px;border-left:1px solid var(--border)}
.timeline-item{position:relative;padding:0 0 48px 28px}
.timeline-item:last-child{padding-bottom:0}
.timeline-marker{
  position:absolute;left:-35px;top:4px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--accent);
  box-shadow:0 0 0 4px rgba(109,93,251,.15);
}
.tl-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:8px;margin-bottom:4px}
.tl-head h3{font-family:var(--font-display);font-weight:600;font-size:19px}
.tl-company{color:var(--text-secondary);font-size:14px;margin-bottom:14px}
.timeline-content ul{display:flex;flex-direction:column;gap:10px}
.timeline-content li{
  color:var(--text-secondary);font-size:14.5px;line-height:1.65;
  padding-left:18px;position:relative;
}
.timeline-content li::before{
  content:"▸";position:absolute;left:0;color:var(--accent);
}

/* Projects — option wheel + detail panels */
.projects-wheel{
  display:grid;grid-template-columns:.85fr 1.15fr;
  gap:48px;align-items:center;margin-top:8px;
}
.option-wheel{
  --ow-font-size:1.6rem;
  position:relative;height:420px;overflow:hidden;
  cursor:grab;user-select:none;touch-action:none;outline:none;
  /* fades the ends of the wheel without painting over the particle canvas */
  -webkit-mask-image:linear-gradient(transparent,#000 24%,#000 76%,transparent);
  mask-image:linear-gradient(transparent,#000 24%,#000 76%,transparent);
}
.option-wheel.dragging{cursor:grabbing}
.option-wheel:focus-visible{outline:1px solid var(--accent);outline-offset:6px;border-radius:var(--radius-card)}
.ow-item{
  position:absolute;top:50%;left:8px;
  white-space:nowrap;font-family:var(--font-display);
  font-size:var(--ow-font-size);line-height:1;font-weight:300;
  transform-origin:left center;cursor:pointer;
  will-change:transform,opacity,filter;
  /* --ow-p goes 0 -> 1 as an option approaches the middle of the wheel */
  color:color-mix(in srgb, var(--accent) calc(var(--ow-p,0) * 100%), var(--text-secondary));
}
.ow-item.selected{font-weight:600;color:var(--text-primary)}

/* All panels share one grid cell, so the container sizes itself to the tallest
   one at any width — no per-breakpoint min-height to keep in sync with copy. */
.project-panels{display:grid}
.project-panel{
  grid-area:1/1;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .45s ease, transform .45s ease, visibility .45s;
}
.project-panel.is-active{opacity:1;visibility:visible;transform:none}
.project-panel:hover{transform:none;box-shadow:none;border-color:rgba(255,255,255,.08)}
.project-panel.is-active:hover{border-color:var(--accent)}
.panel-links{display:flex;flex-wrap:wrap;gap:16px;margin-top:2px}
.bento-card p.panel-note{
  flex:none;font-size:13px;color:var(--text-secondary);
  padding-left:12px;border-left:1px solid rgba(109,93,251,.4);
}

/* Open source */
.oss{margin-top:64px;padding-top:40px;border-top:1px solid var(--border)}
.oss-title{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(20px,2.4vw,26px);margin:10px 0 28px;
}
.oss-list{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.oss-list li{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:20px 22px;
  transition:border-color .3s ease, transform .3s ease;
}
.oss-list li:hover{border-color:var(--accent);transform:translateY(-3px)}
.oss-list li > a{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.oss-repo{font-size:13px;font-weight:600}
.oss-num{color:var(--accent)}
.oss-state{
  flex-shrink:0;font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  padding:4px 10px;border-radius:var(--radius-pill);border:1px solid;
}
.oss-state.merged{color:#c4b5fd;background:rgba(137,87,229,.16);border-color:rgba(137,87,229,.45)}
.oss-state.open{color:#86efac;background:rgba(45,164,78,.14);border-color:rgba(45,164,78,.45)}
.oss-list p{color:var(--text-secondary);font-size:13.5px;line-height:1.65}
.oss-list code{
  font-family:var(--font-mono);font-size:12.5px;
  background:rgba(109,93,251,.12);color:#c7beff;
  padding:1px 5px;border-radius:4px;
}

.bento-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:var(--card-pad);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.bento-card:hover{
  transform:translateY(-6px);
  border-color:var(--accent);
  box-shadow:0 20px 40px -18px rgba(109,93,251,.35);
}
.card-top{display:flex;justify-content:space-between;align-items:center}
.card-link{font-size:12px;color:var(--accent);font-weight:600}
.bento-card h3{font-family:var(--font-display);font-weight:600;font-size:19px}
.bento-card p{color:var(--text-secondary);font-size:14px;line-height:1.65;flex:1}
.bento-cta{
  align-items:flex-start;justify-content:center;
  background:linear-gradient(135deg, rgba(109,93,251,.12), var(--surface));
}
.bento-cta h3{font-size:20px}

.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:11px;font-weight:600;letter-spacing:.02em;
  padding:5px 10px;border-radius:var(--radius-pill);
  background:rgba(109,93,251,.1);color:var(--accent);
  border:1px solid rgba(109,93,251,.25);
}

/* Skills */
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.skill-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:var(--card-pad);
  transition:transform .3s ease, border-color .3s ease;
}
.skill-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.skill-card h4{font-family:var(--font-display);font-weight:600;font-size:15px;margin-bottom:14px}

/* Contact */
.contact-section{padding-bottom:60px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.contact-links{display:flex;flex-direction:column;gap:0}
.contact-link{
  display:flex;justify-content:space-between;align-items:center;
  padding:20px 4px;border-bottom:1px solid var(--border);
  transition:padding-left .25s ease, color .25s ease;
}
.contact-link:hover{padding-left:12px;color:var(--accent)}
.contact-link span:last-child{font-size:15px}

/* Footer */
.footer{border-top:1px solid var(--border);padding:28px 0}
.footer-inner{
  display:flex;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-secondary);
}
.back-top{color:var(--text-secondary);transition:color .2s ease}
.back-top:hover{color:var(--accent)}

/* Reveal animation */
[data-reveal]{
  opacity:0;transform:translateY(24px);
  transition:opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
}
[data-reveal].in-view{opacity:1;transform:translateY(0)}

/* ===== Responsive ===== */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-visual{order:-1}
  .about-grid{grid-template-columns:1fr}
  .about-stats{grid-template-columns:1fr 1fr}
  .projects-wheel{grid-template-columns:1fr;gap:24px}
  .option-wheel{height:300px}
  .oss-list{grid-template-columns:1fr}
  .skills-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .display-lg{font-size:48px}
}

@media (max-width:680px){
  .nav-links{
    position:fixed;top:64px;left:0;right:0;
    background:var(--bg);border-bottom:1px solid var(--border);
    flex-direction:column;padding:20px 32px;gap:18px;
    transform:translateY(-150%);opacity:0;
    transition:transform .3s ease, opacity .3s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .skills-grid{grid-template-columns:1fr}
  .about-stats{grid-template-columns:1fr}
  .display-lg{font-size:38px}
  .section-title{font-size:26px}
  .hero{padding-top:100px}
  .option-wheel{--ow-font-size:1.3rem;height:260px}
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  #bg-canvas{display:none}
  .scroll-cue span{animation:none}
  [data-reveal]{opacity:1;transform:none;transition:none}
  .pc-card,.pc-photo img,.project-panel{transition:none}
  .pc-shine,.pc-glare{display:none}
}