/* ---------- Base & Theme ---------- */
:root{
  --bg:#071021;
  --panel:#0b1220;
  --glass: rgba(255,255,255,0.03);
  --accent: linear-gradient(90deg,#00d2ff,#3a00ff);
  --neon: #00e6ff;
  --muted: rgba(255,255,255,0.6);
  --glass-border: rgba(255,255,255,0.06);
  --glass-blur: 8px;
  --accent-2: linear-gradient(90deg,#ff00c8,#7a00ff);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: radial-gradient(1200px 600px at 10% 10%, rgba(58,0,255,0.12), transparent 10%),
              radial-gradient(800px 400px at 90% 90%, rgba(0,210,255,0.08), transparent 10%),
              var(--bg);
  color:#e6f3ff;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

/* ---------- Helpers ---------- */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.glass{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  border-radius:12px;
}

/* ---------- Nav ---------- */
#main-nav{
  position:fixed;left:50%;transform:translateX(-50%);top:18px;z-index:60;
  display:flex;align-items:center;gap:16px;padding:10px 18px;max-width:1200px;width:calc(100% - 48px);
  transition:backdrop-filter .3s, transform .3s, opacity .3s;justify-content:space-between;
}
#main-nav .logo{display:flex;align-items:center;gap:8px;font-weight:700}
#main-nav .logo i{color:var(--neon)}
#main-nav .nav-links{display:flex;gap:14px;list-style:none;margin:0;padding:0;margin-left:auto}
#main-nav .nav-links a{color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:8px;transition:all 0.3s ease}
#main-nav .nav-links a:hover{color:#fff;background:linear-gradient(90deg, rgba(255,255,255,0.04), transparent);text-shadow:0 0 8px rgba(0,230,255,0.5)}

/* Mobile nav toggle */
.nav-toggle{display:none;background:transparent;border:none;color:var(--neon);font-size:20px;padding:8px;border-radius:8px}

/* Animations */
@keyframes fadeIn{
  from{opacity:0}
  to{opacity:1}
}

@keyframes fadeInUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}

@keyframes slideInLeft{
  from{transform:translateX(-100%);opacity:0}
  to{transform:translateX(0);opacity:1}
}

/* ---------- Hero ---------- */
#hero{
  height:70vh;min-height:540px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:40px 24px;background:linear-gradient(180deg, rgba(58,0,255,0.05), transparent);
}
.hero-inner{position:relative;z-index:30;text-align:center;max-width:980px;margin:0 auto}
.title{font-size:clamp(28px,6vw,56px);font-weight:800;margin:0;color:#fff;letter-spacing:-1px}
.title .neon{background:linear-gradient(90deg,#00e6ff,#7a00ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.subtitle{color:var(--muted);margin-top:10px;font-weight:500}
.typing-animation{margin-top:16px;font-size:16px;color:var(--neon);min-height:28px;font-weight:600;letter-spacing:0.5px;text-shadow:0 0 8px rgba(0,230,255,0.6),0 0 16px rgba(58,0,255,0.4),0 0 24px rgba(0,230,255,0.3);background:linear-gradient(90deg,rgba(0,230,255,0.08),rgba(58,0,255,0.06));padding:12px 16px;border-radius:8px;border-left:3px solid var(--neon);animation:fadeInUp 0.6s ease-out}
#typing-text{display:inline;color:var(--neon);text-shadow:inherit}
.typing-cursor{color:var(--neon);opacity:1;animation:blink 1s infinite;text-shadow:0 0 12px rgba(0,230,255,1),0 0 20px rgba(0,230,255,0.6);font-weight:700;font-size:18px}
@keyframes blink{0%,49%{opacity:1;text-shadow:0 0 12px rgba(0,230,255,1),0 0 20px rgba(0,230,255,0.6)}50%,100%{opacity:0.4;text-shadow:0 0 6px rgba(0,230,255,0.5)}}

.hero-cta{margin-top:20px;display:flex;gap:12px;justify-content:center}

/* ---------- Buttons & Effects ---------- */
.btn{padding:10px 16px;border-radius:10px;border:none;cursor:pointer;background:transparent;color:inherit;font-weight:600;display:inline-flex;align-items:center;gap:10px;transition:all 0.3s ease}
.neon-btn{
  background:var(--accent);color:#02030a;padding:10px 18px;border-radius:12px;box-shadow:0 6px 30px rgba(58,0,255,0.12);
  transition:all 0.3s ease;
}
.neon-btn:hover{
  box-shadow:0 12px 40px rgba(58,0,255,0.25);
  transform:translateY(-4px);
}
.outline{border:1px solid rgba(255,255,255,0.04);padding:10px 14px;transition:all 0.3s ease}
.outline:hover{border-color:var(--neon);background:rgba(0,230,255,0.05)}
.mag{transition:transform .25s ease, box-shadow .25s}
.mag:hover{transform:translateY(-6px);box-shadow:0 8px 20px rgba(0,230,255,0.15)}
.magnetic{position:relative;will-change:transform}

/* ---------- Animations ---------- */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeInDown{from{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideInLeft{from{opacity:0;transform:translateX(-40px)}to{opacity:1;transform:translateX(0)}}
@keyframes slideInRight{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
@keyframes scaleIn{from{opacity:0;transform:scale(0.95)}to{opacity:1;transform:scale(1)}}
@keyframes fadeIn{from{opacity:0;transform:scale(0.9)}to{opacity:1;transform:scale(1)}}
@keyframes glow{0%{text-shadow:0 0 10px rgba(0,230,255,0.5)}50%{text-shadow:0 0 20px rgba(0,230,255,0.8)}100%{text-shadow:0 0 10px rgba(0,230,255,0.5)}}

.fade-in-up{animation:fadeInUp 0.6s ease-out}
.fade-in-down{animation:fadeInDown 0.6s ease-out}
.slide-in-left{animation:slideInLeft 0.6s ease-out}
.slide-in-right{animation:slideInRight 0.6s ease-out}
.scale-in{animation:scaleIn 0.5s ease-out}

/* Stagger animations */
.animate-stagger > *{animation-fill-mode:both}
.animate-stagger > :nth-child(1){animation:fadeInUp 0.6s ease-out 0.1s}
.animate-stagger > :nth-child(2){animation:fadeInUp 0.6s ease-out 0.2s}
.animate-stagger > :nth-child(3){animation:fadeInUp 0.6s ease-out 0.3s}
.animate-stagger > :nth-child(4){animation:fadeInUp 0.6s ease-out 0.4s}
.animate-stagger > :nth-child(5){animation:fadeInUp 0.6s ease-out 0.5s}

/* ---------- Sections ---------- */
.panel{padding:80px 24px}
.glass-section{padding:40px;margin:20px auto;max-width:1100px;border-radius:14px}
.section-title{font-family:'Orbitron';font-weight:700;letter-spacing:1px;margin-bottom:18px}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 280px;gap:28px;align-items:center}
.about-text p{color:var(--muted);line-height:1.6;transition:color 0.3s ease}
.about-text p:first-child{animation:fadeInUp 0.6s ease-out}
.stat{background:linear-gradient(135deg,rgba(11,18,32,0.8),rgba(15,23,36,0.7));padding:16px;border-radius:10px;margin-bottom:12px;text-align:center;transition:all 0.4s ease;cursor:default;border:2px solid rgba(0,230,255,0.25);position:relative;overflow:hidden;box-shadow:0 8px 20px rgba(0,230,255,0.1)}
.stat::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(0,230,255,0.2),transparent);transition:left 0.5s ease;z-index:1}
.stat:hover{border-color:var(--neon);background:linear-gradient(135deg,rgba(0,230,255,0.1),rgba(58,0,255,0.08));transform:translateY(-6px);box-shadow:0 12px 30px rgba(0,230,255,0.3),inset 0 0 20px rgba(0,230,255,0.1)}
.stat:hover::before{left:100%}
.stat strong{display:block;font-size:20px;font-weight:700;color:var(--neon);position:relative;z-index:2;text-shadow:0 0 8px rgba(0,230,255,0.5);transition:all 0.3s ease}
.stat:hover strong{text-shadow:0 0 12px rgba(0,230,255,0.8)}
.stat span{display:block;font-size:12px;color:var(--muted);margin-top:6px;position:relative;z-index:2;transition:all 0.3s ease}
.stat:hover span{color:#fff}

/* Education */
.education-title{font-size:18px;font-weight:700;margin-top:24px;margin-bottom:16px;color:#fff}
.education-item{background:linear-gradient(90deg, rgba(255,255,255,0.02), transparent);padding:16px;border-radius:10px;margin-bottom:12px;border-left:3px solid var(--neon)}
.education-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:8px}
.education-header h4{margin:0;font-size:15px;font-weight:600;color:#fff}
.education-year{font-size:12px;color:var(--neon);white-space:nowrap;background:rgba(0,230,255,0.1);padding:2px 8px;border-radius:4px}
.education-institution{margin:6px 0 4px 0;font-size:14px;color:var(--neon);font-weight:500}
.education-details{margin:4px 0;font-size:13px;color:var(--muted)}
.education-score{margin:6px 0 0 0;font-size:13px;color:var(--muted)}
.education-score strong{color:#fff}

/* Skills */
.skills-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.skill{transition:transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease;animation:fadeInUp 0.6s ease-out both;padding:12px;border-radius:10px}
.skill:nth-child(1){animation-delay:0.1s}
.skill:nth-child(2){animation-delay:0.2s}
.skill:nth-child(3){animation-delay:0.3s}
.skill:nth-child(4){animation-delay:0.4s}
.skill:nth-child(5){animation-delay:0.5s}

/* Highlighted skill visual (hover or in-view) */
.skill:hover,
.skill.highlight{
  transform:translateY(-8px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0,230,255,0.08), 0 0 30px rgba(58,0,255,0.06);
  background:rgba(0,230,255,0.04);
  border:1px solid rgba(0,230,255,0.10);
}

.skill.highlight .bar-fill,
.skill:hover .bar-fill{
  box-shadow: 0 6px 24px rgba(0,230,255,0.14);
}
.skill-head{display:flex;justify-content:space-between;margin-bottom:6px;color:var(--muted)}
.bar{height:10px;background:linear-gradient(90deg,rgba(255,255,255,0.02),transparent);border-radius:10px;padding:2px;overflow:hidden}
.bar-fill{height:100%;width:0;background:linear-gradient(90deg,#00e6ff,#7a00ff);border-radius:8px;animation:slideInLeft 1.2s ease-out forwards}
.bar:nth-child(1) .bar-fill{animation-delay:0.3s}
.bar:nth-child(2) .bar-fill{animation-delay:0.4s}

.section-subtitle{font-size:18px;font-weight:600;color:var(--neon);margin:32px 0 20px 0;letter-spacing:0.5px}

/* Certificates */
.certificates-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:20px}
.certificate-card{
  text-decoration:none;color:inherit;padding:24px;border-radius:12px;
  background:linear-gradient(135deg,rgba(11,18,32,0.6),rgba(15,23,36,0.4));
  border:1px solid rgba(0,230,255,0.2);
  transition:all 0.4s cubic-bezier(0.23,1,0.320,1);
  position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;
  cursor:pointer;box-shadow:0 8px 20px rgba(0,0,0,0.3)
}

.certificate-card::before{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle,rgba(0,230,255,0.2),transparent 70%);
  opacity:0;transition:opacity 0.4s ease,transform 0.4s ease;
  pointer-events:none;transform:translate(0,0)
}

.certificate-card:hover{
  border-color:var(--neon);background:linear-gradient(135deg,rgba(0,230,255,0.1),rgba(58,0,255,0.08));
  transform:translateY(-10px) scale(1.02);box-shadow:0 16px 40px rgba(0,230,255,0.25);
}

.certificate-card:hover::before{opacity:1;transform:translate(-25%,-25%)}

.cert-icon{
  font-size:48px;color:var(--neon);transition:all 0.4s ease;
  filter:drop-shadow(0 0 8px rgba(0,230,255,0.4));text-shadow:0 0 12px rgba(0,230,255,0.6)
}

.certificate-card:hover .cert-icon{
  transform:scale(1.15) rotateY(10deg);
  filter:drop-shadow(0 0 16px rgba(0,230,255,0.8));text-shadow:0 0 20px rgba(0,230,255,0.9)
}

.certificate-card h4{margin:0;font-size:16px;font-weight:700;color:#fff;transition:color 0.3s ease}
.certificate-card:hover h4{color:var(--neon);text-shadow:0 0 8px rgba(0,230,255,0.6)}

.cert-issuer{margin:0;font-size:13px;color:var(--muted);transition:color 0.3s ease}
.certificate-card:hover .cert-issuer{color:rgba(255,255,255,0.8)}

.cert-btn{padding:8px 16px;font-size:12px;background:transparent;border:1px solid var(--neon);
  color:var(--neon);border-radius:8px;transition:all 0.3s ease;white-space:nowrap}
.certificate-card:hover .cert-btn{background:var(--neon);color:#0b1220;box-shadow:0 4px 12px rgba(0,230,255,0.4)}

/* Certificate Modal */
.cert-modal{
  position:fixed;inset:0;background:linear-gradient(180deg, rgba(0,0,0,0.5), rgba(0,0,0,0.7));
  display:none;align-items:center;justify-content:center;z-index:100;backdrop-filter:blur(4px);
  opacity:0;transition:opacity 0.3s ease;padding:20px
}

.cert-modal.open{display:flex;opacity:1}

.cert-modal-content{
  width:90%;max-width:900px;height:90vh;display:flex;flex-direction:column;border-radius:16px;
  box-shadow:0 20px 60px rgba(0,230,255,0.25);max-height:90vh;overflow:hidden
}

.cert-modal-header{
  display:flex;justify-content:space-between;align-items:center;padding:24px;
  border-bottom:1px solid rgba(0,230,255,0.2);flex-shrink:0
}

.cert-modal-header h3{margin:0;color:#fff;font-size:20px}

.close-cert-modal{
  background:transparent;border:none;color:var(--neon);font-size:24px;padding:8px;
  cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center
}

.close-cert-modal:hover{
  color:#fff;transform:scale(1.15);text-shadow:0 0 8px rgba(0,230,255,0.6)
}

.cert-modal-body{
  flex:1;overflow:auto;padding:0;background:rgba(0,0,0,0.2)
}

#cert-iframe{width:100%;height:100%;border:none;background:#fff}

.cert-modal-footer{
  padding:16px 24px;border-top:1px solid rgba(0,230,255,0.2);display:flex;gap:12px;flex-shrink:0
}

/* Projects */
.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.project-card{padding:18px;border-radius:12px;min-height:200px;display:flex;flex-direction:column;gap:8px;justify-content:space-between;animation:fadeInUp 0.6s ease-out both;transition:all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);border:2px solid rgba(0,230,255,0.2);position:relative;overflow:hidden}
.project-card::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(0,230,255,0.2),transparent);transition:left 0.5s ease;z-index:1}
.project-card:nth-child(1){animation-delay:0.1s}
.project-card:nth-child(2){animation-delay:0.2s}
.project-card:nth-child(3){animation-delay:0.3s}
.project-card:hover{border-color:var(--neon);background:linear-gradient(135deg,rgba(0,230,255,0.05),rgba(58,0,255,0.03));transform:translateY(-12px) scale(1.02);box-shadow:0 20px 50px rgba(0,230,255,0.25),inset 0 0 30px rgba(0,230,255,0.1)}
.project-card:hover::before{left:100%}
.project-card:hover h3{color:var(--neon);text-shadow:0 0 10px rgba(0,230,255,0.6)}
.project-card h3{transition:all 0.3s ease}
.project-card p{transition:all 0.3s ease;position:relative;z-index:2}
.card-thumb{height:110px;background:linear-gradient(135deg,#0f1724,#0b1220);border-radius:10px;box-shadow:inset 0 0 40px rgba(0,0,0,0.2),0 0 20px rgba(0,230,255,0.1);transition:all 0.4s ease;position:relative;z-index:2}
.project-card:hover .card-thumb{box-shadow:inset 0 0 40px rgba(0,0,0,0.2),0 0 30px rgba(0,230,255,0.3);background:linear-gradient(135deg,rgba(0,230,255,0.1),rgba(58,0,255,0.05))}

/* Modal */
.modal{position:fixed;inset:0;background:linear-gradient(180deg, rgba(0,0,0,0.45), rgba(0,0,0,0.6));display:none;align-items:center;justify-content:center;z-index:100}
.modal .modal-content{width:90%;max-width:700px;padding:24px;border-radius:12px;position:relative}
.close-modal{position:absolute;right:16px;top:16px}

/* Contact */
.contact-form{max-width:800px;margin:0 auto;padding:24px;border-radius:12px;display:grid;gap:12px;animation:fadeInUp 0.6s ease-out}
.field{animation:fadeInUp 0.6s ease-out both}
.field:nth-child(1){animation-delay:0.1s}
.field:nth-child(2){animation-delay:0.2s}
.field:nth-child(3){animation-delay:0.3s}
.field label{display:block;color:var(--muted);font-size:14px;margin-bottom:6px;transition:color 0.3s ease}
.field input,.field textarea{width:100%;padding:12px;border-radius:8px;border:1px solid rgba(255,255,255,0.03);background:transparent;color:inherit;transition:all 0.3s ease}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--neon);background:rgba(0,230,255,0.03);box-shadow:0 0 20px rgba(0,230,255,0.1)}
.form-actions{display:flex;gap:12px;align-items:center}
.form-status{color:var(--muted);font-size:14px;animation:fadeInUp 0.4s ease-out}

/* Footer */
.footer{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;position:relative}

/* Cursor */
#cursor-follower, #cursor-dot{
  position:fixed;pointer-events:none;z-index:9999;mix-blend-mode:screen;display:none;
}
#cursor-dot{width:8px;height:8px;border-radius:50%;background:var(--neon);transform:translate(-50%,-50%);opacity:0.95}
#cursor-follower{width:44px;height:44px;border-radius:50%;border:1px solid rgba(0,230,255,0.35);transform:translate(-50%,-50%);opacity:0.85;backdrop-filter: blur(6px)}

/* Responsive */
@media (max-width:900px){
  .projects-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .certificates-grid{grid-template-columns:repeat(2,1fr)}
  #main-nav{top:12px}
}
@media (max-width:600px){
  .projects-grid{grid-template-columns:1fr}
  .skills-grid{grid-template-columns:1fr}
  .certificates-grid{grid-template-columns:1fr}
  .title{font-size:28px}
}

/* Enhanced mobile nav behavior */
@media (max-width:820px){
  .nav-toggle{display:inline-flex;margin-left:auto;cursor:pointer}
  .nav-toggle:hover{background:rgba(0,230,255,0.1);transform:scale(1.1)}
  .nav-toggle i{pointer-events:none}
  
  #main-nav{padding:8px 12px;justify-content:space-between;flex-wrap:wrap;width:100%;max-width:100% !important;left:0 !important;right:0 !important;transform:none !important;top:0 !important;border-radius:0;margin:0}
  
  #main-nav .nav-links{
    position:fixed;
    top:60px;
    left:0;
    right:0;
    flex-direction:column;
    gap:0;
    background:linear-gradient(180deg, rgba(11,18,32,0.98), rgba(15,23,36,0.95));
    padding:0;
    border-radius:0;
    display:none;
    z-index:70;
    margin-left:0;
    width:100%;
    border-bottom:2px solid rgba(0,230,255,0.2);
    max-height:calc(100vh - 60px);
    overflow-y:auto;
    box-shadow:0 8px 32px rgba(0,0,0,0.4);
    animation:slideDown 0.3s ease-out;
  }
  
  @keyframes slideDown{
    from{transform:translateY(-100%);opacity:0}
    to{transform:translateY(0);opacity:1}
  }
  
  #main-nav.nav-open .nav-links{display:flex}
  
  #main-nav .nav-links li{
    width:100%;
    margin:0;
    border-bottom:1px solid rgba(255,255,255,0.05);
  }
  
  #main-nav .nav-links li:last-child{border-bottom:none}
  
  #main-nav .nav-links a{
    display:block;
    padding:16px 20px;
    border-radius:0;
    color:var(--muted);
    transition:all 0.3s ease;
    border-left:3px solid transparent;
  }
  
  #main-nav .nav-links a:hover{
    background:rgba(0,230,255,0.08);
    color:#fff;
    border-left-color:var(--neon);
    padding-left:24px;
  }
  
  .hero-inner{padding:24px}
  header#hero{min-height:60vh}
}

@media (max-width:420px){
  .title{font-size:20px}
  .subtitle{font-size:14px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  #cursor-follower{display:none}
}