/* ═══════════════════════════════════════════════════════════════
   RIYAJ CHAULAGAIN — PORTFOLIO (UPDATED)
   Color: Deep Charcoal bg · Gold (#c9a535) accent · White text
   Fonts: Playfair Display + Outfit + JetBrains Mono
   Layout: Fixed TOP NAV + Fixed sidebar LEFT + scrollable main RIGHT
═══════════════════════════════════════════════════════════════ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:17px;scroll-behavior:smooth}

:root{
  --bg:        #0d0d12;
  --bg-card:   #13131a;
  --bg-hover:  #1a1a24;
  --border:    rgba(255,255,255,0.07);
  --gold:      #c9a535;
  --gold-l:    #e0bb50;
  --gold-dim:  rgba(201,165,53,0.12);
  --gold-bdr:  rgba(201,165,53,0.28);
  --emerald:   #10b981;
  --topnav-h:  58px;
  --sidebar-w: 300px;
  --r:         12px;
  --r-sm:      7px;
  --t:         0.25s cubic-bezier(.4,0,.2,1);
  --f-hd:      'Playfair Display', Georgia, serif;
  --f-body:    'Outfit', system-ui, sans-serif;
  --f-mono:    'JetBrains Mono', monospace;
  --tx-1:      #f1f5f9;
  --tx-2:      #cbd5e1;
  --tx-3:      #94a3b8;
  --tx-4:      #64748b;
}

body{font-family:var(--f-body);background:var(--bg);color:var(--tx-2);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{list-style:none}
button{font-family:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font-family:var(--f-body)}

::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--gold);border-radius:4px}

/* ── NOISE ─────────────────────────────────────────── */
.noise{position:fixed;inset:0;z-index:9999;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity:0.022}

/* ═══════════════════════════════════════
   TOP NAVIGATION BAR
═══════════════════════════════════════ */
.topnav{
  position:fixed;top:0;left:0;right:0;height:var(--topnav-h);
  z-index:700;background:rgba(13,13,18,.97);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border-bottom:1px solid var(--border);
}
.topnav-inner{
  max-width:100%;height:100%;display:flex;align-items:center;
  padding:0 2rem;gap:2rem;
}
.topnav-logo{
  font-family:var(--f-hd);font-size:1.55rem;font-weight:900;
  letter-spacing:-.04em;color:var(--tx-1);flex-shrink:0;margin-right:.5rem;
}
.gold{color:var(--gold)}
.topnav-links{display:flex;align-items:center;gap:.3rem;flex:1}
.tnl{
  display:flex;align-items:center;gap:.45rem;padding:.5rem .9rem;
  border-radius:var(--r-sm);font-size:.85rem;font-weight:600;
  color:var(--tx-4);transition:all var(--t);position:relative;letter-spacing:.01em;
  border:1px solid transparent;
}
.tnl i{font-size:.78rem}
.tnl:hover{color:var(--tx-1);background:var(--bg-hover)}
.tnl.active{color:var(--gold);background:var(--gold-dim);border-color:var(--gold-bdr)}

/* Mobile burger (top right of topnav) */
.mob-burger{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
}

.mob-burger span{
  width:25px;height:3px;background:white;display:block;
  transition:transform 0.3s ease,opacity 0.3s ease;transform-origin:center;
}

/* mobile nav dropdown */
.mob-nav-dropdown{
  display:none;flex-direction:column;
  background:#0b0b12;border-top:1px solid rgba(255,255,255,0.1);
  padding:.4rem .75rem .6rem;gap:.15rem;
}
.mob-nav-dropdown.open{display:flex}

/* burger X animation */
.mob-burger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.mob-burger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.mob-burger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* mobile nav links — base styles */
.tnl-mob{
  display:flex;align-items:center;gap:.55rem;
  padding:.6rem .85rem;border-radius:var(--r-sm);
  font-size:.88rem;font-weight:600;color:var(--tx-4);
  transition:all var(--t);letter-spacing:.01em;
}
.tnl-mob i{font-size:.8rem;width:16px;text-align:center}
.tnl-mob:hover{color:var(--tx-1);background:var(--bg-hover)}
.tnl-mob.active{color:var(--gold);background:var(--gold-dim)}

/* show burger at 900px */
@media(max-width:900px){
  .topnav-links{display:none}
  .mob-burger{display:flex}
}

/* ── SIDEBAR ───────────────────────────────────────── */
.sidebar{
  position:fixed;top:var(--topnav-h);left:0;bottom:0;
  width:var(--sidebar-w);background:var(--bg-card);
  border-right:1px solid var(--border);z-index:400;
  overflow-y:auto;overflow-x:hidden;
}
.sidebar::-webkit-scrollbar{width:0}
.sidebar::before{content:'';position:absolute;top:0;left:0;right:0;height:260px;
  background:radial-gradient(ellipse at 50% 0%,rgba(201,165,53,.1),transparent 70%);pointer-events:none}
.sb-inner{padding:2rem 1.4rem 3rem;display:flex;flex-direction:column;gap:1.2rem;min-height:100%}

/* Avatar — STATIC, no spin */
.sb-avatar-wrap{text-align:center}
.sb-ring-static{
  width:124px;height:124px;border-radius:50%;
  padding:3px;margin:0 auto .75rem;
  background:linear-gradient(135deg, var(--gold) 0%, rgba(201,165,53,0.3) 50%, var(--gold) 100%);
  box-shadow:0 0 0 1px rgba(201,165,53,0.25), 0 8px 32px rgba(201,165,53,0.18);
}
.sb-avatar{width:100%;height:100%;border-radius:50%;object-fit:cover;border:3px solid var(--bg)}
.sb-avail{display:inline-flex;align-items:center;gap:6px;font-size:.68rem;font-weight:600;
  letter-spacing:.05em;text-transform:uppercase;color:var(--emerald);
  background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.25);
  padding:3px 10px;border-radius:99px}
.avail-dot{width:7px;height:7px;background:var(--emerald);border-radius:50%;
  animation:pulse-g 1.6s ease infinite}
@keyframes pulse-g{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.3)}}

/* Name / role */
.sb-name{font-family:var(--f-hd);font-size:1.55rem;font-weight:900;letter-spacing:-.04em;
  line-height:1.05;color:var(--tx-1);text-align:center}
.sb-title{font-size:.73rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  color:var(--gold);text-align:center}
.sb-origin{font-size:.75rem;color:var(--tx-4);text-align:center}
.sb-origin i{color:var(--gold);font-size:.68rem}

/* Info items */
.sb-info{display:flex;flex-direction:column;gap:.3rem}
.sbi{display:flex;align-items:center;gap:.7rem;padding:.5rem .65rem;
  border:1px solid transparent;border-radius:var(--r-sm);transition:var(--t)}
.sbi:hover{background:var(--gold-dim);border-color:var(--gold-bdr)}
.sbi-icon{width:32px;height:32px;background:var(--bg-hover);border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:.82rem;flex-shrink:0}
.sbi-lbl{display:block;font-size:.57rem;font-weight:700;letter-spacing:.1em;color:var(--tx-4);text-transform:uppercase}
.sbi-val{font-size:.79rem;color:var(--tx-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sbi:hover .sbi-val{color:var(--tx-1)}

/* Socials */
.sb-socials{display:flex;gap:.5rem;justify-content:center}
.sb-socials a{width:36px;height:36px;background:var(--bg-hover);border:1px solid var(--border);
  border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  color:var(--tx-3);font-size:.9rem;transition:var(--t)}
.sb-socials a:hover{background:var(--gold-dim);border-color:var(--gold-bdr);color:var(--gold);transform:translateY(-2px)}

/* ── MAIN CONTENT ──────────────────────────────────── */
.main{
  margin-left:var(--sidebar-w);
  margin-top:var(--topnav-h);
  min-height:calc(100vh - var(--topnav-h));
  padding:2.5rem 3rem 4rem;
}

/* ── SECTION SYSTEM ────────────────────────────────── */
.sec{display:none}
.sec.active{display:block;animation:fadeUp .4s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}

.sec-hd{display:flex;align-items:center;gap:1rem;margin-bottom:2.2rem;flex-wrap:wrap}
.sec-title{font-family:var(--f-hd);font-size:1.95rem;font-weight:900;letter-spacing:-.04em;color:var(--tx-1)}
.sec-line{flex:1;height:1px;background:linear-gradient(90deg,var(--gold),transparent);min-width:40px}
.sub-hd h3{font-family:var(--f-hd);font-size:1.13rem;font-weight:700;color:var(--tx-3);
  margin-bottom:1.1rem;letter-spacing:-.01em}
.sec-intro{font-size:.94rem;color:var(--tx-3);line-height:1.8;margin-bottom:2rem;max-width:600px}

/* ── BUTTONS ────────────────────────────────────────── */
.btn-gold,.btn-google,.btn-send{display:inline-flex;align-items:center;gap:.55rem;
  padding:.65rem 1.5rem;font-size:.87rem;font-weight:700;border-radius:var(--r-sm);
  transition:all var(--t);cursor:pointer;font-family:var(--f-body);letter-spacing:.02em;border:none}
.btn-gold{background:var(--gold);color:var(--bg);margin-left:auto}
.btn-gold:hover{background:var(--gold-l);transform:translateY(-2px);box-shadow:0 10px 25px rgba(201,165,53,.3)}
.btn-google{background:#4285f4;color:#fff;width:100%;justify-content:center}
.btn-google:hover{background:#5b9cf6;transform:translateY(-2px)}
.btn-send{background:var(--gold);color:var(--bg);width:100%;justify-content:center;margin-top:.4rem}
.btn-send:hover{background:var(--gold-l);transform:translateY(-2px);box-shadow:0 10px 25px rgba(201,165,53,.3)}

/* ── ABOUT ──────────────────────────────────────────── */
.about-bio{max-width:780px;margin-bottom:2rem;flex:1.4}
.about-bio p{font-size:.99rem;line-height:1.92;color:var(--tx-3);margin-bottom:.95rem}
.about-bio strong{color:var(--tx-1)} .about-bio em{color:var(--gold);font-style:normal}
.about-container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}
.about-image{
  flex: 1;
  display: flex;
  justify-content: center;
}

.about-image img{
  width: 100%;
  max-width: 480px;
  height: 560px;
  border-radius: 16px;
  object-fit: cover;
  transform: scale(1.08); 
  box-shadow: 0 25px 60px rgba(0,0,0,0.5);
   border: 2px solid rgba(184,134,11,0.6);
}

/* Stats */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:.9rem;margin-bottom:2.5rem}
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);
  padding:1.4rem 1rem;text-align:center;position:relative;overflow:hidden;transition:var(--t)}
.stat-card::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:50%;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.stat-card:hover{border-color:var(--gold-bdr);transform:translateY(-3px);box-shadow:0 16px 32px rgba(0,0,0,.3)}
.stat-n{font-family:var(--f-hd);font-size:2.2rem;font-weight:900;color:var(--gold);display:block;line-height:1}
/* GPA displayed as static text (not animated counter) */
.stat-gpa{font-family:var(--f-hd);font-size:2.2rem;font-weight:900;color:var(--gold);display:block;line-height:1}
.stat-s{font-size:1.2rem;font-weight:700;color:var(--gold);opacity:.7}
.stat-l{display:block;margin-top:.4rem;font-size:.7rem;font-weight:600;color:var(--tx-4);
  text-transform:uppercase;letter-spacing:.07em}

/* Skill cards */
.skill-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
.skc{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);
  padding:1.4rem;transition:all var(--t);position:relative;overflow:hidden}
.skc::after{content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--gold),transparent);opacity:0;transition:var(--t)}
.skc:hover{border-color:var(--gold-bdr);transform:translateY(-4px);box-shadow:0 20px 40px rgba(0,0,0,.25)}
.skc:hover::after{opacity:1}
.skc-icon{width:40px;height:40px;background:var(--gold-dim);border:1px solid var(--gold-bdr);
  border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  color:var(--gold);font-size:1rem;margin-bottom:.85rem}
.skc-icon.brain{background:rgba(16,185,129,.1);border-color:rgba(16,185,129,.25);color:var(--emerald)}
.skc h4{font-family:var(--f-hd);font-size:.92rem;font-weight:700;margin-bottom:.5rem;color:var(--tx-1)}
.skc p{font-size:.82rem;color:var(--tx-3);line-height:1.7;margin-bottom:.8rem}
.skc-tags{display:flex;flex-wrap:wrap;gap:.3rem}
.skc-tags span,.pc-tags span,.cert-grid span{
  font-family:var(--f-mono);font-size:.67rem;
  padding:2px 7px;border-radius:4px;background:var(--bg-hover);
  color:var(--tx-4);border:1px solid var(--border)
}

/* Prof bars */
.prof-bars{display:flex;flex-direction:column;gap:1rem;max-width:640px}
.pb-hd{display:flex;justify-content:space-between;margin-bottom:.4rem}
.pb-hd span:first-child{font-size:.87rem;color:var(--tx-3);font-weight:500}
.pb-pct{font-family:var(--f-mono);font-size:.8rem;color:var(--gold);font-weight:600}
.pb-track{height:5px;background:var(--bg-hover);border-radius:99px;overflow:hidden}
.pb-fill{height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--gold-l));
  border-radius:99px;transition:width 1.3s cubic-bezier(.4,0,.2,1);box-shadow:0 0 8px rgba(201,165,53,.35)}

/* ── RESUME ──────────────────────────────────────────── */
.rg{margin-bottom:3rem}
.rg-lbl{display:flex;align-items:center;gap:.6rem;font-family:var(--f-mono);font-size:.7rem;
  font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--gold);
  margin-bottom:1.25rem;padding-bottom:.65rem;border-bottom:1px solid var(--border)}

/* Timeline */
.timeline{position:relative;padding-left:1.6rem}
.timeline::before{content:'';position:absolute;left:6px;top:0;bottom:0;width:1px;
  background:linear-gradient(to bottom,var(--gold),rgba(201,165,53,.08))}
.tli{position:relative;margin-bottom:1.4rem}
.tli-dot{position:absolute;left:-1.85rem;top:1rem;width:13px;height:13px;
  background:var(--gold);border-radius:50%;border:3px solid var(--bg);
  box-shadow:0 0 0 2px rgba(201,165,53,.3),0 0 10px rgba(201,165,53,.25);z-index:1}
.tli-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);
  padding:1.4rem 1.6rem;transition:var(--t)}
.tli-card:hover{border-color:var(--gold-bdr);box-shadow:0 8px 28px rgba(0,0,0,.25)}
.tli-top{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;
  margin-bottom:.85rem;flex-wrap:wrap}
.tli-org{font-family:var(--f-hd);font-size:1.02rem;font-weight:700;color:var(--tx-1);
  letter-spacing:-.02em;margin-bottom:.15rem}
.tli-role{font-size:.84rem;color:var(--tx-4);font-weight:500}
.gold-text{color:var(--gold)!important;font-weight:600}
.tli-meta{text-align:right;flex-shrink:0}
.tli-meta span{display:flex;align-items:center;justify-content:flex-end;gap:.35rem;
  font-size:.76rem;color:var(--tx-4);margin-bottom:.1rem}
.tli-meta i{color:var(--gold);font-size:.66rem}
.tli-body{font-size:.86rem;color:var(--tx-3);line-height:1.75;margin-bottom:.85rem}
.tli-body strong{color:var(--tx-1)}

/* Bullet points for experience (replaces STAR method) */
.bullet-block{padding-left:1.1rem;display:flex;flex-direction:column;gap:.55rem;list-style:none}
.bullet-block li{font-size:.86rem;color:var(--tx-3);line-height:1.78;position:relative;padding-left:.9rem}
.bullet-block li::before{
  content:'';position:absolute;left:0;top:.6em;
  width:5px;height:5px;border-radius:50%;
  background:var(--gold);flex-shrink:0;
}
.bullet-block li strong{color:var(--tx-1)}

/* Skills used row */
.skill-used-row{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.85rem;align-items:center}
.su-lbl{font-family:var(--f-mono);font-size:.63rem;text-transform:uppercase;letter-spacing:.08em;color:var(--tx-4);margin-right:.15rem}
.skill-used-row span:not(.su-lbl){font-family:var(--f-mono);font-size:.65rem;padding:2px 7px;border-radius:4px;background:var(--bg-hover);color:var(--tx-4);border:1px solid var(--border)}

/* Awards */
.award-row{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.75rem}
.award{display:inline-flex;align-items:center;gap:.3rem;font-size:.7rem;font-weight:600;
  padding:3px 9px;border-radius:99px;background:var(--gold-dim);border:1px solid var(--gold-bdr);color:var(--gold)}
.award i{font-size:.62rem}

/* Involvement */
.inv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem}
.inv-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);
  padding:1.3rem;display:flex;gap:.85rem;transition:var(--t)}
.inv-card:hover{border-color:var(--gold-bdr);transform:translateY(-3px)}
.inv-icon{width:38px;height:38px;flex-shrink:0;background:var(--gold-dim);
  border:1px solid var(--gold-bdr);border-radius:var(--r-sm);display:flex;
  align-items:center;justify-content:center;color:var(--gold);font-size:.92rem}
.inv-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.1rem}
.inv-top h4{font-family:var(--f-hd);font-size:.92rem;font-weight:700;color:var(--tx-1)}
.inv-top span{font-family:var(--f-mono);font-size:.65rem;color:var(--tx-4)}
.inv-org{font-size:.77rem;color:var(--gold);font-weight:600;margin-bottom:.4rem}
.inv-desc{font-size:.81rem;color:var(--tx-3);line-height:1.65}

/* ── PROJECTS ────────────────────────────────────────── */
.proj-filters{display:flex;gap:.45rem;flex-wrap:wrap;margin-bottom:1rem}

/* Search bar (injected by JS after .proj-filters) */
.proj-search-wrap{
  position:relative;display:flex;align-items:center;
  max-width:360px;margin-bottom:2rem;
}
.proj-search-icon{
  position:absolute;left:.85rem;color:var(--tx-4);
  font-size:.8rem;pointer-events:none;z-index:1;
}
.proj-search-input{
  width:100%;padding:.52rem 2.4rem .52rem 2.4rem;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:99px;color:var(--tx-1);font-size:.84rem;
  outline:none;transition:border-color var(--t),box-shadow var(--t);
  appearance:none;-webkit-appearance:none;
}
.proj-search-input::placeholder{color:var(--tx-4)}
.proj-search-input:focus{border-color:var(--gold-bdr);box-shadow:0 0 0 3px rgba(201,165,53,.1)}
.proj-search-clear{
  position:absolute;right:.75rem;width:20px;height:20px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--bg-hover);border:none;
  color:var(--tx-4);font-size:.65rem;cursor:pointer;transition:var(--t);
}
.proj-search-clear:hover{background:var(--gold-dim);color:var(--gold)}
.pf{padding:.42rem 1.05rem;border-radius:99px;font-size:.79rem;font-weight:600;
  background:var(--bg-card);border:1px solid var(--border);color:var(--tx-4);
  transition:all var(--t);font-family:var(--f-body)}
.pf:hover{border-color:var(--gold-bdr);color:var(--tx-2)}
.pf.active{background:var(--gold);border-color:var(--gold);color:var(--bg)}

/* Project grid */
.proj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}

/* Each project card */
.pc{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);
  overflow:hidden;transition:transform .3s ease,border-color .25s ease,box-shadow .3s ease;
  position:relative}
.pc.hide{display:none}
.pc:hover{border-color:var(--gold-bdr);transform:translateY(-5px);box-shadow:0 24px 48px rgba(0,0,0,.35)}
.pc.featured{border-color:rgba(201,165,53,.35)}
.feat-tag{position:absolute;top:10px;right:10px;z-index:3;font-family:var(--f-mono);
  font-size:.63rem;font-weight:700;padding:2px 9px;border-radius:99px;
  background:var(--gold-dim);border:1px solid var(--gold-bdr);color:var(--gold)}

/* ── PROJECT CAROUSEL ────────────────────────────────── */
.pc-carousel{
  height:160px;position:relative;overflow:hidden;
  background:#0a0a10;user-select:none;
}
.pc-carousel-slide{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:.6rem;
  opacity:0;transition:opacity .5s ease,transform .5s ease;
  transform:translateX(30px);
}
.pc-carousel-slide.active{opacity:1;transform:translateX(0)}
.pc-carousel-slide.exit{opacity:0;transform:translateX(-30px)}
.pc-carousel-slide i{font-size:2.8rem;color:rgba(255,255,255,0.12)}
.pc-carousel-slide .slide-label{
  font-family:var(--f-mono);font-size:.67rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.1em;
  color:rgba(255,255,255,0.28);
}
/* Carousel dots */
.pc-carousel-dots{
  position:absolute;bottom:10px;left:50%;transform:translateX(-50%);
  display:flex;gap:5px;z-index:2;
}
.pc-dot{
  width:5px;height:5px;border-radius:50%;
  background:rgba(255,255,255,0.2);border:none;padding:0;cursor:pointer;
  transition:all .25s ease;
}
.pc-dot.active{background:var(--gold);width:14px;border-radius:3px}
/* Carousel nav arrows */
.pc-carousel-prev,.pc-carousel-next{
  position:absolute;top:50%;transform:translateY(-50%);
  z-index:3;width:26px;height:26px;border-radius:50%;
  background:rgba(0,0,0,.45);border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,0.55);font-size:.65rem;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;transition:all .2s ease;
}
.pc-carousel-prev{left:8px}
.pc-carousel-next{right:8px}
.pc:hover .pc-carousel-prev,
.pc:hover .pc-carousel-next{opacity:1}
.pc-carousel-prev:hover,.pc-carousel-next:hover{
  background:rgba(201,165,53,.3);border-color:var(--gold-bdr);color:var(--gold);
}
/* GitHub overlay on carousel */
.pc-ov{
  position:absolute;inset:0;background:rgba(13,13,18,.8);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .2s ease;backdrop-filter:blur(3px);z-index:4;
  pointer-events:none;
}
.pc:hover .pc-ov.show{opacity:1;pointer-events:auto}
.pc-btn{display:inline-flex;align-items:center;gap:.4rem;padding:.45rem 1rem;
  background:var(--gold);color:var(--bg);font-size:.79rem;font-weight:700;
  border-radius:99px;transition:.2s ease}
.pc-btn:hover{background:var(--gold-l);transform:scale(1.05)}

/* Card body */
.pc-body{padding:1.25rem}
.pc-meta{display:flex;align-items:center;gap:.4rem;margin-bottom:.55rem;flex-wrap:wrap}
.pc-badge{font-family:var(--f-mono);font-size:.62rem;font-weight:700;padding:2px 7px;
  border-radius:4px;text-transform:uppercase;letter-spacing:.05em}
.pc-badge.fullstack{background:rgba(59,130,246,.12);color:#60a5fa;border:1px solid rgba(59,130,246,.25)}
.pc-badge.ai{background:rgba(139,92,246,.12);color:#a78bfa;border:1px solid rgba(139,92,246,.25)}
.pc-badge.mobile{background:rgba(16,185,129,.12);color:#34d399;border:1px solid rgba(16,185,129,.25)}
.pc-badge.game{background:rgba(239,68,68,.12);color:#f87171;border:1px solid rgba(239,68,68,.25)}
.pc-badge.hardware{background:rgba(245,158,11,.12);color:#fbbf24;border:1px solid rgba(245,158,11,.25)}
.pc-date{margin-left:auto;font-family:var(--f-mono);font-size:.65rem;color:var(--tx-4)}
.pc-title{font-family:var(--f-hd);font-size:1.07rem;font-weight:700;letter-spacing:-.02em;
  color:var(--tx-1);margin-bottom:.1rem}
.pc-sub{font-size:.76rem;color:var(--tx-4);margin-bottom:.7rem}
.pc-pts{padding-left:.9rem;margin-bottom:.85rem}
.pc-pts li{font-size:.83rem;color:var(--tx-3);line-height:1.72;margin-bottom:.4rem;list-style:disc}
.pc-pts li::marker{color:var(--gold)}
.pc-pts strong{color:var(--tx-2)}
.pc-tags{display:flex;flex-wrap:wrap;gap:.3rem}

/* ── CERTIFICATIONS ──────────────────────────────────── */
.cert-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem;margin-bottom:1.5rem}
.cert-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);
  padding:1.3rem;display:flex;gap:.9rem;align-items:flex-start;
  position:relative;transition:var(--t)}
.cert-card:hover{border-color:var(--gold-bdr);transform:translateY(-3px)}
.cert-card.dimmed{opacity:.6} .cert-card.dimmed:hover{opacity:1}
.cert-logo{width:48px;height:48px;border-radius:var(--r-sm);flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:1.35rem;color:#fff}
.cert-info h3{font-family:var(--f-hd);font-size:.92rem;font-weight:700;color:var(--tx-1);margin-bottom:.2rem}
.cert-by,.cert-yr{font-size:.76rem;color:var(--tx-4);display:flex;align-items:center;gap:.3rem;margin-bottom:.1rem}
.cert-by i,.cert-yr i{color:var(--gold);font-size:.64rem}
.cert-link{display:inline-flex;align-items:center;gap:.3rem;margin-top:.45rem;font-size:.77rem;font-weight:600;color:var(--gold);transition:gap var(--t)}
.cert-link:hover{gap:.55rem}
.cert-link.muted{color:var(--tx-4);cursor:default}
.cert-badge{position:absolute;top:9px;right:9px;font-family:var(--f-mono);font-size:.59rem;font-weight:700;padding:2px 8px;border-radius:99px}
.cert-badge.verified{background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.3);color:#34d399}
.cert-badge.pursuing{background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.3);color:#fbbf24}
.cert-badge.planned{background:rgba(100,116,139,.12);border:1px solid rgba(100,116,139,.3);color:var(--tx-3)}
.cert-note{display:flex;align-items:flex-start;gap:.7rem;padding:1.1rem 1.3rem;
  background:var(--gold-dim);border:1px dashed var(--gold-bdr);border-radius:var(--r);color:var(--tx-3)}
.cert-note i{color:var(--gold);font-size:.95rem;margin-top:2px;flex-shrink:0}
.cert-note p{font-size:.84rem;line-height:1.65}

/* ── CONTACT ──────────────────────────────────────────── */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;align-items:start}
.contact-headline{font-family:var(--f-hd);font-size:1.75rem;font-weight:900;
  letter-spacing:-.04em;line-height:1.15;color:var(--tx-1);margin-bottom:.85rem}
.contact-body{font-size:.92rem;color:var(--tx-3);line-height:1.8;margin-bottom:1.5rem}
.contact-links{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.5rem}
.cl{display:flex;align-items:center;gap:.8rem;padding:.65rem .9rem;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-sm);transition:var(--t)}
.cl:hover{border-color:var(--gold-bdr);background:var(--gold-dim)}
.cl-icon{width:34px;height:34px;flex-shrink:0;background:var(--gold-dim);
  border:1px solid var(--gold-bdr);border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:.85rem}
.cl-lbl{display:block;font-size:.59rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--tx-4)}
.cl-val{font-size:.82rem;color:var(--tx-3)}

/* Booking box */
.booking-box{background:var(--bg-card);border:1px solid var(--gold-bdr);border-radius:var(--r);padding:1.3rem}
.bb-hd{display:flex;align-items:center;gap:.5rem;margin-bottom:.55rem}
.bb-hd h4{font-family:var(--f-hd);font-size:.97rem;font-weight:700;color:var(--tx-1)}
.booking-box>p{font-size:.83rem;color:var(--tx-3);line-height:1.65;margin-bottom:.85rem}
.bb-note{font-size:.72rem;color:var(--tx-4);text-align:center;margin-top:.6rem}

/* Form */
.contact-right form h3{font-family:var(--f-hd);font-size:1.13rem;font-weight:700;color:var(--tx-1);margin-bottom:.2rem}
.form-sub{font-size:.8rem;color:var(--tx-4);margin-bottom:1.25rem}
.fg-row{display:grid;grid-template-columns:1fr 1fr;gap:.9rem;margin-bottom:1rem}
.fg{margin-bottom:.85rem}
.fg-row .fg{margin-bottom:0}
label{display:block;font-size:.7rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.08em;color:var(--tx-4);margin-bottom:.35rem}
input,textarea,select{width:100%;padding:.62rem .85rem;background:var(--bg-card);
  border:1px solid var(--border);border-radius:var(--r-sm);color:var(--tx-1);
  font-size:.87rem;outline:none;transition:border-color var(--t),box-shadow var(--t);
  appearance:none;-webkit-appearance:none}
input::placeholder,textarea::placeholder{color:var(--tx-4)}
input:focus,textarea:focus,select:focus{border-color:var(--gold-bdr);box-shadow:0 0 0 3px rgba(201,165,53,.1)}
textarea{resize:vertical;min-height:115px}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23c9a535' stroke-width='2'%3E%3Cpath d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 9px center;background-size:13px;padding-right:2rem;cursor:pointer}
select option{background:var(--bg-card)}
.form-ok{margin-top:.85rem;padding:.8rem 1rem;background:rgba(16,185,129,.08);
  border:1px solid rgba(16,185,129,.3);border-radius:var(--r-sm);color:#34d399;
  font-size:.86rem;display:flex;align-items:center;gap:.55rem}
.form-ok i{font-size:1.1rem}

/* ══════════════════════════════════════
   RESPONSIVE — unified, correct order
══════════════════════════════════════ */

/* 1200px */
@media(max-width:1200px){
  .skill-cards{grid-template-columns:repeat(2,1fr)}
  .stats-row{grid-template-columns:repeat(2,1fr)}
}

/* 1024px */
@media(max-width:1024px){
  :root{--sidebar-w:270px}
  .main{padding:2rem 1.75rem}
  .proj-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}

/* 900px — burger shows, about-image stacks below text */
@media(max-width:900px){
  /* about section: image goes BELOW the text */
  .about-container{
    flex-direction:column;
    align-items:center;
    gap:2rem;
  }
  .about-image{
    width:100%;
    display:flex;
    justify-content:center;
    order:2;         /* always after the bio text */
  }
  .about-bio{
    order:1;
    max-width:100%;
  }
  .about-image img{
    max-width:300px;
    height:360px;
    transform:none;
  }
}

/* 768px — sidebar slides off-screen, main fills full width */
@media(max-width:768px){
  .sidebar{
    top:var(--topnav-h);
    width:260px;
    transform:translateX(-100%);
    transition:transform .3s ease;
    z-index:500;
  }
  .sidebar.open{transform:translateX(0)}
  .main{
    margin-left:0;
    padding:calc(var(--topnav-h) + 1.5rem) 1rem 2rem;
  }
  .skill-cards{grid-template-columns:1fr}
  .inv-grid{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:1fr}
  .fg-row{grid-template-columns:1fr}
  .tli-top{flex-direction:column}
  .tli-meta{text-align:left}
  .tli-meta span{justify-content:flex-start}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .about-image img{max-width:260px;height:300px}
  .proj-search-wrap{max-width:100%}
  .sec-title{font-size:1.55rem}
}

/* 480px */
@media(max-width:480px){
  .about-image img{max-width:220px;height:260px}
  .stats-row{grid-template-columns:repeat(2,1fr)}
}