:root{
  --bg:#0b0e11;
  --bg-soft:#12161b;
  --card:#161b21;
  --border:rgba(255,255,255,0.08);
  --border-strong:rgba(255,255,255,0.16);
  --text:#eef1f4;
  --text-dim:#9aa4ae;
  --text-mute:#5f6a75;
  --accent:#5de3b3;
  --accent-dim:#1c3a30;
  --mono:'IBM Plex Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Prompt',sans-serif;
  line-height:1.7;
  font-weight:300;
  overflow-x:hidden;
}
::selection{background:var(--accent);color:#06110d;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1080px;margin:0 auto;padding:0 32px;}

.grid-bg{
  position:fixed;inset:0;z-index:-1;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}

nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  backdrop-filter:blur(12px);
  background:rgba(11,14,17,0.72);
  border-bottom:1px solid var(--border);
}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo{font-family:var(--mono);font-size:15px;letter-spacing:0.5px;display:flex;align-items:center;gap:8px;}
.logo .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.navlinks{display:flex;gap:36px;font-size:14px;color:var(--text-dim);}
.navlinks a{transition:color .2s;}
.navlinks a:hover, .navlinks a.active{color:var(--accent);}

.nav-toggle{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:40px;height:40px;padding:0;
  background:transparent;border:1px solid var(--border-strong);border-radius:8px;
  cursor:pointer;transition:all .2s;flex-shrink:0;
}
.nav-toggle:hover, .nav-toggle.active{border-color:var(--accent);}
.nav-toggle-bar{
  display:block;width:18px;height:2px;border-radius:2px;
  background:var(--text);transition:transform .25s,opacity .25s,background .2s;
}
.nav-toggle:hover .nav-toggle-bar, .nav-toggle.active .nav-toggle-bar{background:var(--accent);}
.nav-toggle.active .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active .nav-toggle-bar:nth-child(2){opacity:0;}
.nav-toggle.active .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-dropdown{
  display:none;flex-direction:column;
  position:fixed;top:72px;left:0;right:0;z-index:49;
  background:rgba(11,14,17,0.98);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  padding:8px 32px 16px;
  max-height:calc(100vh - 72px);overflow-y:auto;
}
.nav-dropdown.show{display:flex;}
.nav-dropdown a{
  padding:15px 0;font-size:15px;color:var(--text-dim);
  border-bottom:1px solid var(--border);transition:color .2s;
}
.nav-dropdown a:last-child{border-bottom:none;}
.nav-dropdown a:hover, .nav-dropdown a.active{color:var(--accent);}

@media(max-width:720px){
  .navlinks{display:none;}
  .nav-toggle{display:flex;}
}

header.hero{
  min-height:70vh;
  display:flex;align-items:center;
  padding-top:72px;
  position:relative;
}
.hero-grid{display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;align-items:center;width:100%;}
@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-photo{order:-1;margin-bottom:8px;}
  .hero-photo .photo-frame{width:200px;margin:0 auto;}
}
.hero-photo{display:flex;justify-content:flex-end;}
.hero-photo .photo-frame{
  position:relative;
  width:280px;aspect-ratio:3/4;
  border-radius:20px;overflow:hidden;
  border:1px solid var(--border-strong);
  background:var(--card);
  box-shadow:0 24px 60px -20px rgba(0,0,0,0.6);
}
.hero-photo .photo-frame::before{
  content:'';position:absolute;inset:-2px;z-index:-1;border-radius:22px;
  background:linear-gradient(135deg, var(--accent), transparent 60%);
  opacity:0.35;filter:blur(18px);
}
.hero-photo .photo-frame img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;}
.kicker{
  font-family:var(--mono);font-size:13px;color:var(--accent);
  letter-spacing:2px;text-transform:uppercase;margin-bottom:24px;
  display:flex;align-items:center;gap:10px;
}
.kicker::before{content:'';width:28px;height:1px;background:var(--accent);}
h1.title{
  font-size:clamp(34px,6vw,60px);
  font-weight:600;
  line-height:1.15;
  letter-spacing:-1px;
  margin-bottom:22px;
}
h1.title span{color:var(--accent);}
.lede{
  font-size:18px;color:var(--text-dim);max-width:620px;font-weight:300;margin-bottom:36px;
}
.role-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:44px;}
.role-tag{
  font-family:var(--mono);font-size:12.5px;padding:7px 14px;
  border:1px solid var(--border-strong);border-radius:100px;color:var(--text-dim);
}
.cta-row{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  font-family:'Prompt',sans-serif;font-weight:500;font-size:14.5px;
  padding:13px 26px;border-radius:8px;display:inline-flex;align-items:center;gap:8px;
  transition:all .2s;
}
.btn-primary{background:var(--accent);color:#06110d;}
.btn-primary:hover{background:#7bede1;transform:translateY(-1px);}
.btn-ghost{border:1px solid var(--border-strong);color:var(--text);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

section{padding:110px 0;border-top:1px solid var(--border);}
.section-head{margin-bottom:56px;}
.section-num{font-family:var(--mono);color:var(--accent);font-size:13px;letter-spacing:2px;margin-bottom:12px;}
.section-title{font-size:clamp(26px,4vw,36px);font-weight:600;letter-spacing:-0.5px;}
.section-sub{color:var(--text-dim);font-size:15.5px;margin-top:14px;max-width:640px;}

.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;}
@media(max-width:800px){.about-grid{grid-template-columns:1fr;}}
.about-grid p{color:var(--text-dim);font-size:15.5px;margin-bottom:18px;}
.about-grid p strong{color:var(--text);font-weight:500;}
.stat-block{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:22px 20px;}
.stat-num{font-family:var(--mono);font-size:28px;color:var(--accent);font-weight:500;}
.stat-label{font-size:13px;color:var(--text-dim);margin-top:6px;}

.timeline{position:relative;padding-left:32px;border-left:1px solid var(--border);}
.t-item{position:relative;padding-bottom:44px;}
.t-item:last-child{padding-bottom:0;}
.t-dot{position:absolute;left:-37px;top:4px;width:11px;height:11px;border-radius:50%;background:var(--bg);border:2px solid var(--accent);}
.t-org{font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:1px;text-transform:uppercase;margin-bottom:6px;}
.t-role{font-size:19px;font-weight:500;margin-bottom:6px;}
.t-period{font-size:13px;color:var(--text-mute);margin-bottom:12px;font-family:var(--mono);}
.t-desc{color:var(--text-dim);font-size:15px;max-width:560px;}

.skill-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;}
.skill-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:26px;transition:border-color .2s, transform .2s;}
.skill-card:hover{border-color:var(--border-strong);transform:translateY(-3px);}
.skill-card i{font-size:24px;color:var(--accent);margin-bottom:14px;display:block;}
.skill-card h3{font-size:16px;font-weight:500;margin-bottom:10px;}
.skill-card ul{list-style:none;}
.skill-card li{font-size:13.5px;color:var(--text-dim);padding:5px 0;display:flex;align-items:center;gap:8px;}
.skill-card li::before{content:'';width:4px;height:4px;background:var(--text-mute);border-radius:50%;flex-shrink:0;}

.filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px;}
.filter-btn{font-family:var(--mono);font-size:12.5px;padding:9px 16px;border-radius:100px;border:1px solid var(--border-strong);color:var(--text-dim);cursor:pointer;background:transparent;transition:all .2s;}
.filter-btn:hover{color:var(--text);}
.filter-btn.active{background:var(--accent);border-color:var(--accent);color:#06110d;}
.proj-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;}
.proj-card{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:border-color .2s, transform .2s;display:block;}
.proj-card:hover{border-color:var(--accent);transform:translateY(-4px);}
.proj-thumb{height:150px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg, var(--accent-dim), transparent),repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 2px, transparent 2px, transparent 14px);border-bottom:1px solid var(--border);position:relative;overflow:hidden;}
.proj-thumb i{font-size:36px;color:var(--accent);opacity:0.85;}
.proj-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.proj-card:hover .proj-thumb img{transform:scale(1.05);}
.proj-cat{position:absolute;top:14px;left:14px;font-family:var(--mono);font-size:10.5px;letter-spacing:1px;text-transform:uppercase;color:var(--accent);background:rgba(6,17,13,0.6);padding:4px 10px;border-radius:100px;border:1px solid var(--border-strong);}
.proj-body{padding:22px;}
.proj-body h3{font-size:17px;font-weight:500;margin-bottom:10px;}
.proj-body p{font-size:14px;color:var(--text-dim);margin-bottom:16px;}
.proj-tools{display:flex;flex-wrap:wrap;gap:6px;}
.proj-tools span{font-family:var(--mono);font-size:11px;color:var(--text-mute);border:1px solid var(--border);padding:3px 9px;border-radius:6px;}
.proj-more{font-family:var(--mono);font-size:12px;color:var(--accent);display:flex;align-items:center;gap:6px;}

.contact-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:56px;text-align:center;}
.contact-card h2{font-size:clamp(26px,4vw,36px);font-weight:600;margin-bottom:16px;}
.contact-card p{color:var(--text-dim);max-width:480px;margin:0 auto 32px;}
.contact-links{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.contact-links a{font-family:var(--mono);font-size:13.5px;padding:12px 20px;border:1px solid var(--border-strong);border-radius:8px;display:flex;align-items:center;gap:8px;transition:all .2s;}
.contact-links a:hover{border-color:var(--accent);color:var(--accent);}

footer{padding:32px 0;text-align:center;color:var(--text-mute);font-size:13px;font-family:var(--mono);}

.fade-in{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease;}
.fade-in.show{opacity:1;transform:translateY(0);}

/* project detail page */
.breadcrumb{font-family:var(--mono);font-size:13px;color:var(--text-mute);display:flex;align-items:center;gap:8px;margin-bottom:28px;}
.breadcrumb a{color:var(--text-dim);}
.breadcrumb a:hover{color:var(--accent);}
.proj-hero{padding:150px 0 60px;}
.proj-hero .proj-cat-badge{
  font-family:var(--mono);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);
  border:1px solid var(--border-strong);padding:6px 14px;border-radius:100px;display:inline-block;margin-bottom:20px;
}
.proj-hero h1{font-size:clamp(30px,5vw,48px);font-weight:600;letter-spacing:-1px;margin-bottom:20px;max-width:800px;}
.proj-hero .proj-lede{color:var(--text-dim);font-size:17px;max-width:680px;}
.meta-row{display:flex;flex-wrap:wrap;gap:40px;padding:32px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin:48px 0;}
.meta-item .meta-label{font-family:var(--mono);font-size:11.5px;color:var(--text-mute);letter-spacing:1px;text-transform:uppercase;margin-bottom:8px;}
.meta-item .meta-value{font-size:15px;color:var(--text);}
.content-block{margin-bottom:48px;max-width:760px;}
.content-block h2{font-size:22px;font-weight:500;margin-bottom:18px;}
.content-block p{color:var(--text-dim);font-size:15.5px;margin-bottom:16px;}
.content-block ul{color:var(--text-dim);font-size:15.5px;padding-left:20px;margin-bottom:16px;}
.content-block li{margin-bottom:8px;}
.img-placeholder{
  height:280px;border-radius:12px;background:var(--card);border:1px dashed var(--border-strong);
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;color:var(--text-mute);
  font-family:var(--mono);font-size:12.5px;margin-bottom:20px;
}
.img-placeholder i{font-size:28px;}
.proj-nav{display:flex;justify-content:space-between;padding:48px 0;border-top:1px solid var(--border);}
.proj-nav a{font-family:var(--mono);font-size:13.5px;color:var(--text-dim);display:flex;align-items:center;gap:8px;transition:color .2s;}
.proj-nav a:hover{color:var(--accent);}

/* project detail image gallery (reuses .lightbox from certificates) */
.shot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:8px;}
.shot-card{cursor:zoom-in;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:var(--card);transition:border-color .2s, transform .2s;}
.shot-card:hover{border-color:var(--accent);transform:translateY(-3px);}
.shot-thumb{height:200px;overflow:hidden;background:#0b0e11;}
.shot-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease;}
.shot-card:hover .shot-thumb img{transform:scale(1.04);}
.shot-cap{padding:12px 14px;border-top:1px solid var(--border);}
.shot-cap .shot-tag{font-family:var(--mono);font-size:10.5px;letter-spacing:1px;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:4px;}
.shot-cap span.shot-desc{font-size:12.5px;color:var(--text-dim);}
.note-box{border:1px dashed var(--border-strong);border-radius:10px;padding:16px 18px;font-size:13px;color:var(--text-mute);font-family:var(--mono);line-height:1.6;margin-top:20px;}

/* certificates */
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;}
.cert-card{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--border);background:var(--card);cursor:zoom-in;transition:border-color .2s, transform .2s;}
.cert-card:hover{border-color:var(--accent);transform:translateY(-4px);}
.cert-thumb{height:210px;background:#fff;overflow:hidden;}
.cert-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease;}
.cert-card:hover .cert-thumb img{transform:scale(1.04);}
.cert-overlay{position:absolute;inset:0 0 auto 0;height:210px;background:rgba(6,17,13,0.45);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s;}
.cert-overlay i{font-size:28px;color:#fff;}
.cert-card:hover .cert-overlay{opacity:1;}
.cert-body{padding:16px 18px;border-top:1px solid var(--border);}
.cert-body h3{font-size:14.5px;font-weight:500;margin-bottom:4px;}
.cert-body p{font-size:12.5px;color:var(--text-mute);font-family:var(--mono);}

.lightbox{position:fixed;inset:0;background:rgba(6,10,13,0.92);z-index:200;display:none;align-items:center;justify-content:center;padding:64px 24px;cursor:zoom-out;}
.lightbox.show{display:flex;}
.lightbox img{max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,0.55);cursor:default;}
.lightbox-close{position:absolute;top:24px;right:28px;width:44px;height:44px;border-radius:50%;border:1px solid var(--border-strong);background:rgba(255,255,255,0.08);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;}
.lightbox-close:hover{border-color:var(--accent);color:var(--accent);}
.lightbox-cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:var(--text-dim);font-family:var(--mono);font-size:13px;}

/* live project embed */
.live-frame-label{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;font-family:var(--mono);font-size:12.5px;color:var(--text-mute);margin-bottom:14px;}
.live-frame-label .live-dot{width:7px;height:7px;border-radius:50%;background:#5de3b3;box-shadow:0 0 8px #5de3b3;display:inline-block;margin-right:7px;animation:pulse-dot 1.6s ease-in-out infinite;}
@keyframes pulse-dot{0%,100%{opacity:1;}50%{opacity:.35;}}
.live-frame-label a{color:var(--accent);display:flex;align-items:center;gap:6px;}
.live-frame-label a:hover{color:#7bede1;}
.live-frame-wrap{border-radius:12px;overflow:hidden;border:1px solid var(--border-strong);background:var(--card);margin-bottom:28px;}
.live-frame{width:100%;height:600px;border:0;display:block;background:#0b0e11;}
@media(max-width:640px){.live-frame{height:420px;}}