:root {
  --bg: #070b14;
  --bg2: #0d1526;
  --bg3: #111827;
  --surface: rgba(13,21,38,0.7);
  --cyan: #00d4ff;
  --cyan2: #00b4d8;
  --purple: #8b5cf6;
  --pink: #ec4899;
  --green: #10b981;
  --text: #e2e8f0;
  --text2: #94a3b8;
  --text3: #64748b;
  --border: rgba(0,212,255,0.12);
  --border2: rgba(255,255,255,0.06);
  --glow: 0 0 30px rgba(0,212,255,0.25);
  --glow2: 0 0 60px rgba(139,92,246,0.2);
  --nav-h: 70px;
}
[data-theme="light"] {
  --bg: #f0f4ff;
  --bg2: #e8eeff;
  --bg3: #dde5f8;
  --surface: rgba(240,244,255,0.85);
  --text: #0f172a;
  --text2: #334155;
  --text3: #64748b;
  --border: rgba(0,180,216,0.25);
  --border2: rgba(0,0,0,0.08);
  --glow: 0 0 30px rgba(0,180,216,0.2);
}
*{margin:0;padding:0;box-sizing:border-box;scroll-behavior:smooth}
html{font-size:16px}
body{
  font-family:'Syne',sans-serif;
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;
  transition:background 0.4s,color 0.4s;
}
/* ── SCROLLBAR ── */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--cyan);border-radius:3px}

/* ── SELECTION ── */
::selection{background:rgba(0,212,255,0.3);color:var(--text)}

/* ── NAV ── */
#navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-h);
  background:rgba(7,11,20,0.7);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border2);
  display:flex;align-items:center;
  transition:all 0.3s;
}
[data-theme="light"] #navbar{background:rgba(240,244,255,0.8)}
.nav-inner{
  max-width:1200px;margin:0 auto;width:100%;
  padding:0 2rem;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{
  font-size:1.5rem;font-weight:800;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  letter-spacing:-0.03em;cursor:pointer;
  font-family:'JetBrains Mono',monospace;
}
.nav-links{display:flex;gap:0.2rem;align-items:center}
.nav-link{
  color:var(--text2);font-size:0.82rem;font-weight:600;
  padding:0.45rem 0.85rem;border-radius:8px;
  transition:all 0.2s;text-decoration:none;letter-spacing:0.02em;
  text-transform:uppercase;
}
.nav-link:hover,.nav-link.active{color:var(--cyan);background:rgba(0,212,255,0.08)}
.nav-controls{display:flex;gap:0.5rem;align-items:center}
.ctrl-btn{
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--border);
  background:rgba(0,212,255,0.05);
  color:var(--text2);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:0.9rem;transition:all 0.2s;
  font-family:inherit;
}
.ctrl-btn:hover{background:rgba(0,212,255,0.15);color:var(--cyan);border-color:var(--cyan)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.hamburger span{display:block;width:24px;height:2px;background:var(--text2);border-radius:2px;transition:all 0.3s}

/* ── HERO ── */
#hero{
  min-height:100vh;position:relative;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  padding-top:var(--nav-h);
  box-sizing:border-box;
}
#particles-canvas{
  position:absolute;inset:0;z-index:0;
  pointer-events:none;
}
.hero-glow-1{
  position:absolute;top:20%;left:15%;
  width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,212,255,0.12) 0%,transparent 70%);
  animation:pulse-glow 4s ease-in-out infinite;pointer-events:none;
}
.hero-glow-2{
  position:absolute;bottom:20%;right:15%;
  width:350px;height:350px;border-radius:50%;
  background:radial-gradient(circle,rgba(139,92,246,0.12) 0%,transparent 70%);
  animation:pulse-glow 5s ease-in-out infinite reverse;pointer-events:none;
}
@keyframes pulse-glow{
  0%,100%{transform:scale(1);opacity:0.7}
  50%{transform:scale(1.2);opacity:1}
}
.hero-content{
  position:relative;z-index:1;
  text-align:center;max-width:860px;
  padding:0 2rem;
  margin-top:calc(var(--nav-h) * -1);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 20px;border-radius:50px;
  border:1px solid var(--border);
  background:rgba(0,212,255,0.06);
  font-family:'JetBrains Mono',monospace;
  font-size:0.78rem;color:var(--cyan);
  margin-bottom:2rem;letter-spacing:0.05em;
  animation:fadeSlideDown 0.8s ease both;
}
.badge-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 8px var(--green);
  animation:blink 1.5s infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0.3}}
.hero-name{
  font-size:clamp(3rem,8vw,6rem);
  font-weight:800;line-height:1;
  letter-spacing:-0.04em;
  background:linear-gradient(135deg,#ffffff 0%,var(--cyan) 50%,var(--purple) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  animation:fadeSlideUp 0.9s ease 0.2s both;
  margin-bottom:0.5rem;
}
.hero-typewriter{
  font-family:'JetBrains Mono',monospace;
  font-size:clamp(1rem,2.5vw,1.4rem);
  color:var(--cyan);font-weight:500;
  height:2em;display:flex;align-items:center;justify-content:center;
  gap:2px;margin-bottom:1.5rem;
  animation:fadeSlideUp 0.9s ease 0.4s both;
}
.cursor{
  display:inline-block;width:2px;height:1.1em;
  background:var(--cyan);
  animation:blink 0.8s infinite;
  margin-left:2px;
}
.hero-desc{
  font-size:1.05rem;color:var(--text2);
  max-width:580px;margin:0 auto 2.5rem;
  line-height:1.8;
  animation:fadeSlideUp 0.9s ease 0.6s both;
}
.hero-btns{
  display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;
  animation:fadeSlideUp 0.9s ease 0.8s both;
}
.btn-primary:focus,.btn-secondary:focus{
  outline:2px solid var(--cyan);outline-offset:3px;
}
.btn-primary{
  padding:14px 32px;border-radius:12px;
  background:linear-gradient(135deg,var(--cyan),var(--cyan2));
  color:#070b14;font-weight:700;font-size:0.9rem;
  border:none;cursor:pointer;font-family:inherit;
  box-shadow:0 0 30px rgba(0,212,255,0.35);
  transition:all 0.3s;text-decoration:none;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 50px rgba(0,212,255,0.5)}
.btn-secondary{
  padding:14px 32px;border-radius:12px;
  border:1px solid var(--border);
  background:transparent;color:var(--text);
  font-weight:600;font-size:0.9rem;
  cursor:pointer;font-family:inherit;
  transition:all 0.3s;text-decoration:none;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(0,212,255,0.06)}
.hero-scroll{
  position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  z-index:1;display:flex;flex-direction:column;align-items:center;gap:8px;
  animation:fadeIn 1s ease 1.5s both;
}
.hero-scroll span{font-size:0.7rem;color:var(--text3);letter-spacing:0.15em;text-transform:uppercase}
.scroll-line{
  width:1px;height:50px;
  background:linear-gradient(to bottom,var(--cyan),transparent);
  animation:scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse{0%,100%{opacity:0.3;transform:scaleY(1)}50%{opacity:1;transform:scaleY(1.1)}}

/* floating tech icons */
.tech-float{
  position:absolute;z-index:1;
  width:44px;height:44px;border-radius:12px;
  background:rgba(0,212,255,0.06);
  border:1px solid rgba(0,212,255,0.15);
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;backdrop-filter:blur(10px);
  animation:float 6s ease-in-out infinite;
  pointer-events:none;
}
@keyframes float{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-15px) rotate(3deg)}}

/* ── SECTIONS ── */
section{padding:4rem 0;position:relative}
.section-inner{max-width:1200px;margin:0 auto;padding:0 2rem}
.section-tag{
  font-family:'JetBrains Mono',monospace;
  font-size:0.72rem;color:var(--cyan);letter-spacing:0.15em;
  text-transform:uppercase;margin-bottom:0.75rem;
  display:flex;align-items:center;gap:8px;
}
.section-tag::before{content:'';width:30px;height:1px;background:var(--cyan)}
.section-title{
  font-size:clamp(2rem,4vw,3rem);font-weight:800;
  letter-spacing:-0.03em;line-height:1.1;
  margin-bottom:0.75rem;
}
.gradient-text{
  background:linear-gradient(135deg,var(--text) 0%,var(--cyan) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.section-line{
  width:60px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));
  margin-bottom:2rem;
}
.divider{
  border:none;border-top:1px solid var(--border2);
  margin:0;
}

/* ── ABOUT ── */
.about-grid{
  display:grid;grid-template-columns:1fr 1.6fr;
  gap:3rem;align-items:center;
}
@media(max-width:900px){
  .about-grid{
    grid-template-columns:1fr;
  }
  .about-grid .hero-visual{
    order:-1;
    display:flex;flex-direction:column;align-items:center;
  }
  .photo-frame{margin:0 auto}
}
.photo-frame{
  position:relative;width:320px;
}
.photo-ring{
  position:absolute;inset:-8px;border-radius:50%;
  border:2px solid transparent;
  background:linear-gradient(135deg,var(--cyan),var(--purple),var(--pink)) border-box;
  -webkit-mask:linear-gradient(#fff 0 0) padding-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:destination-out;mask-composite:exclude;
  animation:spin 8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.photo-ring-2{
  position:absolute;inset:-16px;border-radius:50%;
  border:1px solid rgba(0,212,255,0.2);
  animation:spin 15s linear infinite reverse;
}
.photo-img{
  width:300px;height:300px;border-radius:50%;object-fit:cover;
  display:block;margin:8px auto;
  position:relative;z-index:1;
  box-shadow:0 0 60px rgba(0,212,255,0.2),0 20px 60px rgba(0,0,0,0.5);
}
.about-bio{font-size:1.05rem;color:var(--text2);line-height:1.9;margin-bottom:1.5rem}
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:1.5rem}
.stat-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:1.25rem;text-align:center;
  backdrop-filter:blur(10px);
  transition:all 0.3s;
}
.stat-card:hover{border-color:var(--cyan);box-shadow:var(--glow)}
.stat-num{
  font-size:2rem;font-weight:800;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  font-family:'JetBrains Mono',monospace;
}
.stat-label{font-size:0.78rem;color:var(--text3);margin-top:4px;letter-spacing:0.05em}

/* ── SKILLS ── */
/* ── SKILLS ── */
#skills{background:var(--bg2)}

/* Filter tabs */
.skills-filter{
  display:flex;gap:0.5rem;justify-content:center;
  flex-wrap:wrap;margin-bottom:2.5rem;
}
.filter-btn{
  padding:8px 20px;border-radius:50px;
  border:1px solid var(--border2);
  background:transparent;color:var(--text2);
  font-size:0.78rem;font-weight:600;letter-spacing:0.05em;
  cursor:pointer;font-family:'JetBrains Mono',monospace;
  transition:all 0.25s;text-transform:uppercase;
}
.filter-btn:hover{border-color:var(--cyan);color:var(--cyan)}
.filter-btn.active{
  background:rgba(0,212,255,0.12);
  border-color:var(--cyan);color:var(--cyan);
  box-shadow:0 0 20px rgba(0,212,255,0.15);
}

/* Skills grid */
.skills-grid-new{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(130px,1fr));
  gap:1rem;
}
.skill-item{
  background:var(--surface);
  border:1px solid var(--border2);
  border-radius:16px;
  padding:1.5rem 1rem;
  text-align:center;
  transition:all 0.3s cubic-bezier(0.4,0,0.2,1);
  cursor:default;position:relative;overflow:hidden;
  backdrop-filter:blur(12px);
  display:none;
}
.skill-item.visible{display:block}
.skill-item::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(0,212,255,0.06),transparent 60%);
  opacity:0;transition:opacity 0.3s;
}
.skill-item:hover::after{opacity:1}
.skill-item:hover{
  transform:translateY(-6px);
  border-color:var(--cyan);
  box-shadow:0 12px 40px rgba(0,212,255,0.18);
}
.skill-item-icon{
  width:54px;height:54px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 0.9rem;
  font-size:1.6rem;
  background:linear-gradient(135deg,rgba(0,212,255,0.1),rgba(139,92,246,0.1));
  border:1px solid var(--border);
  transition:all 0.3s;
  position:relative;z-index:1;
}
.skill-item:hover .skill-item-icon{
  background:linear-gradient(135deg,rgba(0,212,255,0.2),rgba(139,92,246,0.2));
  box-shadow:0 0 20px rgba(0,212,255,0.25);
}
.skill-item-name{
  font-size:0.78rem;font-weight:700;color:var(--text);
  letter-spacing:0.03em;line-height:1.3;
  position:relative;z-index:1;
}
.skill-item-cat{
  font-size:0.65rem;color:var(--text3);margin-top:3px;
  font-family:'JetBrains Mono',monospace;
  position:relative;z-index:1;
}

/* ── PROJECTS ── */
.projects-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));
  gap:1.5rem;
}
.project-card{
  background:var(--surface);
  border:1px solid var(--border2);
  border-radius:18px;overflow:hidden;
  transition:all 0.35s;position:relative;
  backdrop-filter:blur(10px);
  display:flex;flex-direction:column;
}
.project-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  opacity:0;transition:opacity 0.3s;
}
.project-card:hover::before{opacity:1}
.project-card:hover{
  transform:translateY(-6px);
  border-color:rgba(0,212,255,0.3);
  box-shadow:0 20px 60px rgba(0,0,0,0.4),var(--glow);
}
.project-thumb{
  height:180px;
  background:linear-gradient(135deg,var(--bg2),var(--bg3));
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.project-thumb-icon{font-size:3.5rem;opacity:0.2}
.project-year-badge{
  position:absolute;top:12px;right:12px;
  padding:4px 12px;border-radius:20px;
  background:rgba(0,212,255,0.15);border:1px solid rgba(0,212,255,0.3);
  font-family:'JetBrains Mono',monospace;font-size:0.72rem;color:var(--cyan);
}
.project-type-badge{
  position:absolute;top:12px;left:12px;
  padding:4px 12px;border-radius:20px;
  background:rgba(139,92,246,0.15);border:1px solid rgba(139,92,246,0.3);
  font-size:0.68rem;font-weight:600;color:var(--purple);
}
.project-body{padding:1.5rem;flex:1;display:flex;flex-direction:column;align-items:center;text-align:center}
.project-title{font-size:1.1rem;font-weight:800;margin-bottom:0.5rem;color:var(--text);width:100%}
.project-desc{font-size:0.85rem;color:var(--text2);line-height:1.7;margin-bottom:1rem;flex:1;width:100%}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:1.25rem;justify-content:center}
.tag{
  padding:3px 10px;border-radius:6px;
  font-size:0.68rem;font-weight:600;letter-spacing:0.03em;
  font-family:'JetBrains Mono',monospace;
}
.tag-cyan{background:rgba(0,212,255,0.1);color:var(--cyan);border:1px solid rgba(0,212,255,0.2)}
.tag-purple{background:rgba(139,92,246,0.1);color:var(--purple);border:1px solid rgba(139,92,246,0.2)}
.tag-green{background:rgba(16,185,129,0.1);color:var(--green);border:1px solid rgba(16,185,129,0.2)}
.tag-pink{background:rgba(236,72,153,0.1);color:var(--pink);border:1px solid rgba(236,72,153,0.2)}
.project-actions{display:flex;gap:0.75rem;justify-content:center;flex-wrap:wrap}
.btn-sm{
  padding:8px 18px;border-radius:9px;font-size:0.78rem;
  font-weight:600;cursor:pointer;border:none;
  transition:all 0.2s;font-family:inherit;
  display:inline-flex;align-items:center;gap:6px;
  text-decoration:none;
}
.btn-sm-primary{
  background:linear-gradient(135deg,var(--cyan),var(--cyan2));
  color:#070b14;
}
.btn-sm-primary:hover{transform:translateY(-1px);box-shadow:0 5px 20px rgba(0,212,255,0.3)}
.btn-sm-ghost{
  background:transparent;color:var(--text2);
  border:1px solid var(--border);
}
.btn-sm-ghost:hover{border-color:var(--text2);color:var(--text)}
.btn-sm-img{
  background:rgba(139,92,246,0.12);
  color:var(--purple);
  border:1px solid rgba(139,92,246,0.3);
}
.btn-sm-img:hover{
  background:rgba(139,92,246,0.25);
  transform:translateY(-1px);
  box-shadow:0 5px 20px rgba(139,92,246,0.25);
}
/* ── EDUCATION ── */
#education{background:var(--bg2)}
.timeline{position:relative;padding-left:2.5rem}
.timeline::before{
  content:'';position:absolute;left:8px;top:0;bottom:0;
  width:2px;background:linear-gradient(to bottom,var(--cyan),var(--purple),transparent);
}
.timeline-item{
  position:relative;margin-bottom:2.5rem;
}
.timeline-dot{
  position:absolute;left:-2.1rem;top:4px;
  width:16px;height:16px;border-radius:50%;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  box-shadow:0 0 15px rgba(0,212,255,0.5);
  border:2px solid var(--bg2);
}
.timeline-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:14px;padding:1.5rem;
  backdrop-filter:blur(10px);
  transition:all 0.3s;
}
.timeline-card:hover{border-color:rgba(0,212,255,0.25);box-shadow:var(--glow)}
.timeline-date{
  font-family:'JetBrains Mono',monospace;
  font-size:0.72rem;color:var(--cyan);margin-bottom:0.5rem;
  letter-spacing:0.05em;
}
.timeline-title{font-size:1rem;font-weight:700;margin-bottom:0.3rem}
.timeline-sub{font-size:0.85rem;color:var(--text2);margin-bottom:0.5rem}
.timeline-badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:0.75rem}

/* ── CERTIFICATIONS ── */
.certs-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));
  gap:1rem;
}
.cert-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:14px;padding:1.25rem;
  display:flex;gap:1rem;align-items:flex-start;
  backdrop-filter:blur(10px);transition:all 0.3s;
}
.cert-card:hover{border-color:rgba(0,212,255,0.3);transform:translateY(-3px)}
.cert-icon-btn{
  width:48px;height:48px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(0,212,255,0.15),rgba(139,92,246,0.15));
  border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;cursor:pointer;
  transition:all 0.25s;position:relative;
}
.cert-icon-btn:hover{
  background:linear-gradient(135deg,rgba(0,212,255,0.3),rgba(139,92,246,0.3));
  box-shadow:0 0 20px rgba(0,212,255,0.3);
  transform:scale(1.08);
}
.cert-icon-btn .cert-view-hint{
  position:absolute;bottom:-22px;left:50%;transform:translateX(-50%);
  font-size:0.55rem;color:var(--cyan);white-space:nowrap;
  font-family:'JetBrains Mono',monospace;letter-spacing:0.05em;
  opacity:0;transition:opacity 0.2s;pointer-events:none;
}
.cert-icon-btn:hover .cert-view-hint{opacity:1}
.cert-name{font-size:0.88rem;font-weight:700;margin-bottom:0.2rem;line-height:1.3}
.cert-issuer{font-size:0.75rem;color:var(--cyan);margin-bottom:0.2rem}
.cert-date{font-size:0.7rem;color:var(--text3);font-family:'JetBrains Mono',monospace}

/* ── CONTACT ── */
#contact{
  background:var(--bg2);
  position:relative;
}
#contact::before{
  content:'';
  position:absolute;top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),var(--purple),transparent);
}
.contact-grid{
  display:grid;grid-template-columns:1fr 1.2fr;
  gap:3rem;
}
.contact-info-item{
  display:flex;align-items:center;gap:1rem;
  margin-bottom:1.25rem;
}
.contact-icon{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  background:rgba(0,212,255,0.08);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;color:var(--cyan);
}
.contact-label{font-size:0.72rem;color:var(--text3);margin-bottom:2px;text-transform:uppercase;letter-spacing:0.05em}
.contact-val{font-size:0.9rem;color:var(--text);font-weight:600}
.contact-val a{color:inherit;text-decoration:none;transition:color 0.2s}
.contact-val a:hover{color:var(--cyan)}
.social-row{display:flex;gap:0.75rem;margin-top:2rem;flex-wrap:wrap}
.social-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:10px;
  background:var(--surface);border:1px solid var(--border2);
  color:var(--text2);font-size:0.82rem;font-weight:600;
  text-decoration:none;transition:all 0.2s;
}
.social-pill:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(0,212,255,0.08)}
.form-group{margin-bottom:1.25rem}
.form-group label{display:block;font-size:0.78rem;font-weight:600;color:var(--text2);margin-bottom:6px;letter-spacing:0.03em}
.form-input{
  width:100%;padding:12px 16px;border-radius:10px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border2);color:var(--text);
  font-family:inherit;font-size:0.9rem;
  transition:all 0.2s;outline:none;
}
[data-theme="light"] .form-input{background:rgba(0,0,0,0.04)}
.form-input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,212,255,0.1)}
textarea.form-input{resize:vertical;min-height:130px}
.form-input::placeholder{color:var(--text3)}

/* ── FOOTER ── */
footer{
  background:var(--bg);
  border-top:1px solid var(--border2);
  padding:2.5rem 0 1.5rem;
  position:relative;overflow:hidden;
}
footer::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),var(--purple),transparent);
}
.footer-inner{
  max-width:1200px;margin:0 auto;padding:0 2rem;
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:1.5rem;
}
.footer-brand{
  font-family:'JetBrains Mono',monospace;
  font-size:1.2rem;font-weight:700;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.footer-copy{font-size:0.78rem;color:var(--text3);margin-top:4px}
.footer-socials{display:flex;gap:0.6rem;align-items:center}
.footer-social-btn{
  width:36px;height:36px;border-radius:9px;
  border:1px solid var(--border2);
  background:rgba(0,212,255,0.04);
  color:var(--text3);font-size:0.85rem;
  display:flex;align-items:center;justify-content:center;
  transition:all 0.2s;text-decoration:none;
}
.footer-social-btn:hover{
  border-color:var(--cyan);color:var(--cyan);
  background:rgba(0,212,255,0.1);
  box-shadow:0 0 15px rgba(0,212,255,0.2);
  transform:translateY(-2px);
}
.footer-nav{display:flex;gap:1.5rem;flex-wrap:wrap}
.footer-nav a{font-size:0.8rem;color:var(--text3);text-decoration:none;transition:color 0.2s}
.footer-nav a:hover{color:var(--cyan)}
.footer-bottom{
  max-width:1200px;margin:1.5rem auto 0;padding:1rem 2rem 0;
  border-top:1px solid var(--border2);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;
}
.footer-bottom p{font-size:0.74rem;color:var(--text3)}
.footer-heart{color:#ef4444;animation:heartbeat 1s infinite}
@keyframes heartbeat{0%,100%{transform:scale(1)}50%{transform:scale(1.25)}}

/* ── REVEAL ANIMATIONS ── */
.reveal{opacity:0;transform:translateY(30px);transition:all 0.7s cubic-bezier(0.4,0,0.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-30px);transition:all 0.7s cubic-bezier(0.4,0,0.2,1)}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(30px);transition:all 0.7s cubic-bezier(0.4,0,0.2,1)}
.reveal-right.visible{opacity:1;transform:translateX(0)}
@keyframes fadeSlideDown{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeSlideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ── MOBILE NAV ── */
.mobile-menu{
  display:none;
  position:fixed;top:var(--nav-h);left:0;right:0;
  background:rgba(7,11,20,0.97);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border2);
  padding:1rem;z-index:999;
  flex-direction:column;gap:0.25rem;
}
[data-theme="light"] .mobile-menu{background:rgba(240,244,255,0.97)}
.mobile-menu.open{display:flex}
.mobile-menu .nav-link{display:block;padding:0.75rem 1rem}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  .contact-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .hamburger{display:flex}
  .hero-img-wrap{width:260px;height:310px}
  .float-badge-2{right:-10px}
  .section-inner{padding:0 1.25rem}
}
@media(max-width:600px){
  :root{--nav-h:60px}
  .projects-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(3,1fr)}
  .hero-btns{flex-direction:row;align-items:center;justify-content:center;gap:0.5rem;flex-wrap:wrap}
  .hero-btns .btn-primary,
  .hero-btns .btn-secondary{padding:12px 18px;font-size:0.78rem;flex:1;min-width:0;max-width:160px;justify-content:center}
  .nav-logo{font-size:1.2rem}
  .section-title{font-size:clamp(1.6rem,5vw,2.5rem)}
  .footer-inner{flex-direction:column;align-items:center;text-align:center;gap:1rem}
  .footer-nav{justify-content:center}
  .contact-grid{gap:2rem}
  .certs-grid{grid-template-columns:1fr}
  .hero-name{font-size:clamp(2.5rem,10vw,4rem)}
  .photo-img{width:220px;height:220px}
  .hero-img-wrap{width:200px;height:240px}
  .float-badge{display:none}
  .about-bio{font-size:0.95rem}
}
@media(max-width:400px){
  .stats-row{grid-template-columns:repeat(3,1fr);gap:0.5rem}
  .stat-card{padding:0.9rem 0.5rem}
  .stat-num{font-size:1.5rem}
}

/* ── MODAL OVERLAY (shared) ── */
.modal-overlay{
  display:none;position:fixed;inset:0;z-index:9999;
  background:rgba(0,0,0,0.88);
  backdrop-filter:blur(12px);
  align-items:center;justify-content:center;
  animation:fadeIn 0.25s ease;
}
.modal-overlay.open{display:flex}
@keyframes scaleIn{from{transform:scale(0.92);opacity:0}to{transform:scale(1);opacity:1}}

/* ── IMG MODAL ── */
.img-modal-box{
  position:relative;width:90%;max-width:900px;
  background:var(--bg2);border:1px solid var(--border);
  border-radius:20px;overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,0.7),var(--glow2);
  animation:scaleIn 0.3s cubic-bezier(0.4,0,0.2,1);
}
.img-modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:1.25rem 1.5rem;border-bottom:1px solid var(--border2);
}
.img-modal-title{font-size:1rem;font-weight:700;color:var(--text)}
.img-modal-close{
  width:34px;height:34px;border-radius:9px;
  border:1px solid var(--border2);background:transparent;
  color:var(--text2);cursor:pointer;font-size:1rem;
  display:flex;align-items:center;justify-content:center;transition:all 0.2s;
}
.img-modal-close:hover{border-color:var(--pink);color:var(--pink)}
.img-slider{
  position:relative;height:460px;background:#050811;
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.img-slide{display:none;position:absolute;inset:0;align-items:center;justify-content:center}
.img-slide.active{display:flex;animation:fadeIn 0.3s ease}
.img-slide img{max-width:100%;max-height:100%;object-fit:contain;border-radius:4px}
.img-placeholder{
  display:flex;flex-direction:column;align-items:center;gap:1rem;
  color:var(--text3);text-align:center;padding:2rem;
}
.img-placeholder i{font-size:4rem;color:var(--border)}
.img-placeholder p{font-size:0.85rem;line-height:1.6}
.slider-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border-radius:50%;
  background:rgba(0,212,255,0.1);border:1px solid var(--border);
  color:var(--text);cursor:pointer;font-size:1rem;
  display:flex;align-items:center;justify-content:center;
  transition:all 0.2s;z-index:2;
}
.slider-arrow:hover{background:rgba(0,212,255,0.25);border-color:var(--cyan);color:var(--cyan)}
.slider-arrow.prev{left:1rem}
.slider-arrow.next{right:1rem}
.slider-dots{display:flex;gap:6px;justify-content:center;padding:1rem;border-top:1px solid var(--border2)}
.slider-dot{
  width:8px;height:8px;border-radius:50%;background:var(--border2);
  cursor:pointer;transition:all 0.2s;border:none;
}
.slider-dot.active{background:var(--cyan);box-shadow:0 0 8px rgba(0,212,255,0.6)}

/* ── CERT MODAL ── */
.cert-modal-box{
  position:relative;width:90%;max-width:700px;
  background:var(--bg2);border:1px solid var(--border);
  border-radius:20px;overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,0.7),var(--glow);
  animation:scaleIn 0.3s cubic-bezier(0.4,0,0.2,1);
}
.cert-modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:1.25rem 1.5rem;border-bottom:1px solid var(--border2);
}
.cert-modal-title{font-size:1rem;font-weight:700;color:var(--text)}
.cert-modal-body{padding:2rem;display:flex;flex-direction:column;align-items:center;gap:1.5rem}
.cert-preview{
  width:100%;min-height:300px;
  background:linear-gradient(135deg,var(--bg3),var(--bg));
  border:1px solid var(--border);border-radius:14px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;
  padding:2.5rem;text-align:center;position:relative;overflow:hidden;
}
.cert-preview::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(0,212,255,0.04),rgba(139,92,246,0.04));
}
.cert-preview img{max-width:100%;max-height:400px;object-fit:contain;border-radius:8px;position:relative;z-index:1}
.cert-preview-placeholder{display:flex;flex-direction:column;align-items:center;gap:1rem;position:relative;z-index:1}
.cert-preview-icon{font-size:4rem}
.cert-preview-name{font-size:1.3rem;font-weight:800;color:var(--text);line-height:1.3}
.cert-preview-sub{font-size:0.88rem;color:var(--text2);line-height:1.6}
.cert-preview-grade{
  display:inline-block;margin-top:0.5rem;
  padding:6px 18px;border-radius:20px;
  background:rgba(16,185,129,0.12);border:1px solid rgba(16,185,129,0.3);
  color:var(--green);font-size:0.82rem;font-weight:700;
  font-family:'JetBrains Mono',monospace;
}
.cert-modal-meta{text-align:center;font-size:0.8rem;color:var(--text3);font-family:'JetBrains Mono',monospace;letter-spacing:0.05em}

/* gradient mesh bg */
.mesh-bg{
  position:absolute;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse 80% 50% at 0% 100%,rgba(139,92,246,0.06) 0%,transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 0%,rgba(0,212,255,0.06) 0%,transparent 60%);
}

/* === HERO VISUAL local shorthands (mapped to theme vars) === */
:root {
  --accent:      var(--cyan);
  --accent2:     var(--green);
  --bg-surface:  var(--bg2);
  --glass:       var(--surface);
  --glass-border:var(--border);
  --text-secondary: var(--text2);
  --radius-lg:   1.5rem;
}

/* === HERO VISUAL CONTAINER === */
.hero-visual {
  position: relative;
  animation: fadeUp 0.8s 0.2s ease both;
  flex-shrink: 0;
}

/* === IMAGE WRAPPER (rotating border) === */
.hero-img-wrap {
  width: 320px;
  height: 380px;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.hero-img-wrap::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: inherit;
  z-index: 0;
  animation: borderRotate 4s linear infinite;
}

.hero-img-inner {
  position: absolute;
  inset: 2px;
  background: var(--bg-surface);
  border-radius: calc(var(--radius-lg) - 2px);
  overflow: hidden;
  z-index: 1;
}

.hero-img-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}

.hero-img-wrap:hover .hero-img-inner img {
  transform: scale(1.04);
}

/* === FLOATING BADGES === */
.float-badge {
  position: absolute;
  background: var(--glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  padding: 0.6rem 1rem;
  border-radius: 0.75rem;
  z-index: 5;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.float-badge-1 {
  top: -16px;
  left: -30px;
  color: var(--accent);
  animation: float1 4s ease-in-out infinite;
}

.float-badge-2 {
  bottom: 30px;
  right: -35px;
  color: var(--accent2);
  animation: float2 5s ease-in-out infinite;
}

.float-badge-3 {
  bottom: -18px;
  left: 20px;
  color: var(--text-secondary);
  animation: float1 6s ease-in-out infinite;
}

/* === ANIMATIONS === */
@keyframes borderRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes float1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes float2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ── ADMIN MODAL ── */
.admin-modal-overlay{
  display:none;position:fixed;inset:0;z-index:10000;
  background:rgba(0,0,0,0.92);
  backdrop-filter:blur(16px);
  align-items:center;justify-content:center;
}
.admin-modal-overlay.open{display:flex}
.admin-modal-box{
  background:var(--bg2);border:1px solid var(--border);
  border-radius:20px;padding:2.5rem;width:90%;max-width:420px;
  box-shadow:0 30px 80px rgba(0,0,0,0.8),var(--glow);
  animation:scaleIn 0.3s cubic-bezier(0.4,0,0.2,1);
  position:relative;
}
.admin-modal-title{
  font-size:1.1rem;font-weight:800;margin-bottom:0.4rem;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.admin-modal-sub{font-size:0.8rem;color:var(--text3);margin-bottom:1.75rem;font-family:'JetBrains Mono',monospace}
.admin-modal-close{
  position:absolute;top:1.25rem;right:1.25rem;
  width:32px;height:32px;border-radius:8px;
  border:1px solid var(--border2);background:transparent;
  color:var(--text2);cursor:pointer;font-size:0.9rem;
  display:flex;align-items:center;justify-content:center;transition:all 0.2s;
}
.admin-modal-close:hover{border-color:var(--pink);color:var(--pink)}
.admin-error{
  display:none;margin-top:0.75rem;
  padding:10px 14px;border-radius:9px;
  background:rgba(236,72,153,0.1);border:1px solid rgba(236,72,153,0.3);
  color:var(--pink);font-size:0.82rem;text-align:center;
}
/* Admin Dashboard */
.admin-dash-overlay{
  display:none;position:fixed;inset:0;z-index:10001;
  background:var(--bg);overflow-y:auto;
  animation:fadeIn 0.3s ease;
}
.admin-dash-overlay.open{display:block}
.admin-dash-inner{max-width:1000px;margin:0 auto;padding:2rem 1.5rem}
.admin-dash-header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:2rem;padding-bottom:1.25rem;
  border-bottom:1px solid var(--border2);
}
.admin-dash-title{
  font-size:1.4rem;font-weight:800;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.admin-stats-row{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));
  gap:1rem;margin-bottom:2rem;
}
.admin-stat{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:14px;padding:1.25rem;text-align:center;
  backdrop-filter:blur(10px);
}
.admin-stat-num{
  font-size:1.8rem;font-weight:800;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  font-family:'JetBrains Mono',monospace;
}
.admin-stat-label{font-size:0.75rem;color:var(--text3);margin-top:4px}
.msg-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:14px;padding:1.5rem;margin-bottom:1rem;
  backdrop-filter:blur(10px);transition:all 0.2s;
}
.msg-card:hover{border-color:rgba(0,212,255,0.25)}
.msg-card.unread{border-left:3px solid var(--cyan)}
.msg-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:0.75rem;flex-wrap:wrap}
.msg-name{font-weight:700;font-size:0.95rem}
.msg-email{font-size:0.78rem;color:var(--cyan);font-family:'JetBrains Mono',monospace}
.msg-subject{font-size:0.82rem;color:var(--text2);margin-bottom:0.5rem;font-weight:600}
.msg-body{
  font-size:0.85rem;color:var(--text2);line-height:1.7;
  overflow-wrap:break-word;
  word-break:break-word;
  max-height:200px;
  overflow-y:auto;
}
.msg-date{font-size:0.7rem;color:var(--text3);font-family:'JetBrains Mono',monospace}
.msg-status{
  font-size:0.68rem;font-weight:700;padding:3px 10px;border-radius:20px;
  font-family:'JetBrains Mono',monospace;text-transform:uppercase;
}
.msg-status.unread{background:rgba(0,212,255,0.15);color:var(--cyan);border:1px solid rgba(0,212,255,0.3)}
.msg-status.read{background:rgba(100,116,139,0.15);color:var(--text3);border:1px solid var(--border2)}
.msg-actions{display:flex;gap:0.5rem;flex-wrap:wrap;margin-top:1rem}
.reply-form{
  display:none;margin-top:1rem;padding-top:1rem;
  border-top:1px solid var(--border2);
}
.reply-form.open{display:block}
.admin-empty{
  text-align:center;padding:3rem;color:var(--text3);
  font-family:'JetBrains Mono',monospace;font-size:0.85rem;
}