*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#07080f;
  --bg2:#0d0f1a;
  --bg3:#12152a;
  --card:#141828;
  --cardBorder:#1e2440;
  --blue:#4f8ef7;
  --purple:#8b5cf6;
  --cyan:#22d3ee;
  --text:#e8eaf6;
  --textMuted:#7b83b0;
  --textDim:#4a5080;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}

/* ── NAV ── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(7,8,15,0.88);backdrop-filter:blur(20px);border-bottom:1px solid var(--cardBorder);padding:0 2rem;transition:box-shadow .3s}
nav.scrolled{box-shadow:0 2px 32px rgba(0,0,0,.5)}
.nav-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.1rem;color:var(--text);text-decoration:none;letter-spacing:-.02em}
.nav-logo span{color:var(--blue)}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{color:var(--textMuted);text-decoration:none;font-size:.875rem;font-weight:500;transition:color .2s;position:relative;padding-bottom:2px}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--blue);transition:width .25s}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--text)}
.nav-right{display:flex;gap:.75rem;align-items:center}
.nav-cv{background:transparent;color:var(--blue);padding:.42rem 1rem;border-radius:8px;text-decoration:none;font-size:.8rem;font-weight:600;border:1px solid rgba(79,142,247,.35);transition:background .2s;display:flex;align-items:center;gap:.35rem}
.nav-cv:hover{background:rgba(79,142,247,.1)}
.nav-cta{background:var(--blue);color:#fff;padding:.45rem 1.1rem;border-radius:8px;text-decoration:none;font-size:.875rem;font-weight:600;transition:opacity .2s}
.nav-cta:hover{opacity:.85}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;background:rgba(7,8,15,.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--cardBorder);padding:1.5rem 2rem;z-index:99;flex-direction:column;gap:1rem}
.mobile-menu.open{display:flex}
.mobile-menu a{color:var(--textMuted);text-decoration:none;font-size:1rem;font-weight:500;padding:.5rem 0;border-bottom:1px solid var(--cardBorder)}
.mobile-menu a:last-child{border-bottom:none}

/* ── HERO ── */
.hero{min-height:100vh;display:flex;align-items:center;padding:6rem 2rem 4rem;background:radial-gradient(ellipse 80% 60% at 50% -10%,rgba(79,142,247,.12) 0%,transparent 60%)}
.hero-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:rgba(79,142,247,.1);border:1px solid rgba(79,142,247,.25);color:var(--blue);font-size:.75rem;font-weight:600;letter-spacing:.08em;padding:.35rem .85rem;border-radius:100px;text-transform:uppercase;margin-bottom:1.5rem}
.hero-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--cyan);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-family:'Space Grotesk',sans-serif;font-size:clamp(2.2rem,5vw,3.2rem);font-weight:700;line-height:1.15;letter-spacing:-.03em;margin-bottom:1rem}
.hero h1 .line2{color:var(--blue)}
.hero-titles{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.25rem}
.hero-title-tag{font-size:.75rem;font-weight:600;color:var(--textMuted);background:var(--card);border:1px solid var(--cardBorder);padding:.25rem .7rem;border-radius:100px;letter-spacing:.04em}
.hero-tagline{font-size:1.05rem;color:var(--textMuted);max-width:480px;margin-bottom:2rem;line-height:1.7}
.hero-btns{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:2rem}
.btn-primary{background:var(--blue);color:#fff;padding:.7rem 1.6rem;border-radius:10px;text-decoration:none;font-weight:600;font-size:.9rem;transition:transform .15s,opacity .15s;display:inline-flex;align-items:center;gap:.4rem}
.btn-primary:hover{transform:translateY(-1px);opacity:.9}
.btn-outline{background:transparent;color:var(--text);padding:.7rem 1.6rem;border-radius:10px;text-decoration:none;font-weight:600;font-size:.9rem;border:1px solid var(--cardBorder);transition:border-color .2s}
.btn-outline:hover{border-color:var(--blue)}
.hero-photo {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* outer glow blur */
.photo-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* glowing aura behind image */
.photo-glow {
  position: absolute;
    width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle,
    rgba(79,142,247,0.35) 0%,
    rgba(79,142,247,0.15) 35%,
    transparent 70%);
  filter: blur(20px);
  z-index: 0;
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.1); opacity: 1; }
}

/* circular gradient ring */
.photo-ring {
  position: relative;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  padding: 6px;
  background: conic-gradient(
    from 180deg,
    var(--blue),
    rgba(255,255,255,0.1),
    var(--blue)
  );
  z-index: 1;
}

/* actual image container */
.photo-frame{
  width:100%;
  height:100%;
  border-radius:50%;
  overflow:hidden;
}
img{
  max-width:100%;
  display:block;
}

/* image styling */
.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}

/* hover zoom */
.photo-frame:hover img {
  transform: scale(1.05);
}
.hero-stats{display:flex;gap:1.5rem;padding-top:2rem;border-top:1px solid var(--cardBorder)}
.stat span{display:block;font-size:1.5rem;font-weight:700;font-family:'Space Grotesk',sans-serif;color:var(--blue)}
.stat p{font-size:.75rem;color:var(--textMuted)}
#animatedRole {
  color: #4f8ef7;
  font-weight: 600;
  border-right: 3px solid #4f8ef7;
  white-space: nowrap;
  overflow: hidden;
  animation: blinkCursor 0.8s infinite;
}

@keyframes blinkCursor {
  50% {
    border-color: transparent;
  }
}
/* ── SECTION COMMON ── */
section{padding:6rem 2rem}
.section-inner{max-width:1100px;margin:0 auto}
.section-label{font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:.75rem}
.section-title{font-family:'Space Grotesk',sans-serif;font-size:clamp(1.8rem,4vw,2.4rem);font-weight:700;letter-spacing:-.025em;margin-bottom:1rem}
.section-sub{color:var(--textMuted);max-width:560px;font-size:1rem;margin-bottom:3rem}

/* ── ABOUT ── */
.about{background:var(--bg2)}
.about-grid{display:grid;grid-template-columns:3fr 2fr;gap:4rem;align-items:start}
.about-text p{color:var(--textMuted);font-size:.975rem;line-height:1.8;margin-bottom:1rem}
.about-cv-btn{display:inline-flex;align-items:center;gap:.5rem;background:rgba(79,142,247,.1);border:1px solid rgba(79,142,247,.3);color:var(--blue);padding:.6rem 1.25rem;border-radius:8px;text-decoration:none;font-size:.85rem;font-weight:600;transition:background .2s;margin-top:.5rem}
.about-cv-btn:hover{background:rgba(79,142,247,.18)}
.about-highlights{display:flex;flex-direction:column;gap:.75rem}
.highlight-card{background:var(--card);border:1px solid var(--cardBorder);border-radius:12px;padding:1rem 1.25rem;display:flex;align-items:flex-start;gap:.85rem}
.highlight-card .icon{font-size:1.2rem;flex-shrink:0;margin-top:.1rem}
.highlight-card h4{font-size:.85rem;font-weight:600;margin-bottom:.15rem}
.highlight-card p{font-size:.78rem;color:var(--textMuted);line-height:1.5}

/* ── SERVICES ── */
.services-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}
.service-card{background:var(--card);border:1px solid var(--cardBorder);border-radius:16px;padding:2rem;transition:border-color .2s,transform .2s;position:relative;overflow:hidden}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue),var(--purple));opacity:0;transition:opacity .3s}
.service-card:hover{border-color:rgba(79,142,247,.4);transform:translateY(-2px)}
.service-card:hover::before{opacity:1}
.service-icon{width:48px;height:48px;border-radius:12px;background:rgba(79,142,247,.1);border:1px solid rgba(79,142,247,.2);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:1.25rem}
.service-card h3{font-family:'Space Grotesk',sans-serif;font-size:1.05rem;font-weight:600;margin-bottom:.6rem}
.service-card p{color:var(--textMuted);font-size:.875rem;line-height:1.7}

/* ── PROJECTS ── */
.projects{background:var(--bg2)}
.projects-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}
.project-card{background:var(--card);border:1px solid var(--cardBorder);border-radius:16px;padding:1.75rem;transition:border-color .2s}
.project-card:hover{border-color:rgba(79,142,247,.4)}
.project-number{font-size:.75rem;font-weight:700;color:var(--blue);letter-spacing:.08em;margin-bottom:1rem;opacity:.7}
.project-card h3{font-family:'Space Grotesk',sans-serif;font-size:1rem;font-weight:600;margin-bottom:.6rem}
.project-card p{color:var(--textMuted);font-size:.85rem;line-height:1.7;margin-bottom:1.25rem}
.project-tools{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1.25rem}
.tool-tag{font-size:.72rem;font-weight:600;padding:.2rem .6rem;border-radius:6px;background:rgba(79,142,247,.08);border:1px solid rgba(79,142,247,.18);color:var(--blue)}
.project-link{font-size:.825rem;font-weight:600;color:var(--blue);text-decoration:none;display:inline-flex;align-items:center;gap:.35rem;transition:gap .2s}
.project-link:hover{gap:.55rem}

/* ── SKILLS ── */
.skills-tabs{display:flex;gap:.5rem;margin-bottom:2rem;flex-wrap:wrap}
.skill-tab{background:var(--card);border:1px solid var(--cardBorder);color:var(--textMuted);padding:.45rem 1.1rem;border-radius:100px;font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s;user-select:none}
.skill-tab.active,.skill-tab:hover{border-color:var(--blue);color:var(--blue);background:rgba(79,142,247,.08)}
.skills-panel{display:none;animation:fadeSlide .35s ease}
.skills-panel.active{display:block}
@keyframes fadeSlide{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.skills-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.skill-item-card{background:var(--card);border:1px solid var(--cardBorder);border-radius:12px;padding:1.1rem 1.25rem;display:flex;align-items:center;gap:.9rem}
.skill-item-card .s-icon{width:36px;height:36px;border-radius:8px;background:rgba(79,142,247,.1);display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0}
.skill-item-card .s-name{font-size:.875rem;font-weight:600;margin-bottom:.15rem}
.skill-item-card {
  background: var(--card);
  border: 1px solid var(--cardBorder);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .9rem;
  transition: transform .25s ease, box-shadow .25s ease;
  position: relative;
  overflow: hidden;
}

/* hover popup effect */
.skill-item-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(79,142,247,0.15);
  border-color: rgba(79,142,247,0.4);
}

/* underline animation under text */
.skill-item-card .s-name {
  position: relative;
  display: inline-block;
}

/* underline line */
.skill-item-card .s-name::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--purple));
  transition: width 0.3s ease;
}

/* expand underline on hover */
.skill-item-card:hover .s-name::after {
  width: 100%;
}
/* ── CONTACT ── */
.contact-wrapper{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}
.contact-info h3{font-family:'Space Grotesk',sans-serif;font-size:1.4rem;font-weight:600;margin-bottom:1rem}
.contact-info p{color:var(--textMuted);margin-bottom:2rem;font-size:.95rem;line-height:1.8}
.contact-links{display:flex;flex-direction:column;gap:.75rem}
.contact-link{display:flex;align-items:center;gap:.75rem;color:var(--textMuted);text-decoration:none;font-size:.875rem;transition:color .2s}
.contact-link:hover{color:var(--text)}
.contact-link .c-icon{width:36px;height:36px;border-radius:8px;background:var(--card);border:1px solid var(--cardBorder);display:flex;align-items:center;justify-content:center;font-size:.95rem;flex-shrink:0}
.contact-form{display:flex;flex-direction:column;gap:1rem}
.form-group{display:flex;flex-direction:column;gap:.4rem}
.form-group label{font-size:.8rem;font-weight:600;color:var(--textMuted);letter-spacing:.04em}
.form-group input,.form-group textarea{background:var(--card);border:1px solid var(--cardBorder);color:var(--text);padding:.75rem 1rem;border-radius:10px;font-family:'Inter',sans-serif;font-size:.9rem;outline:none;transition:border-color .2s;resize:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--blue)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--textDim)}
.btn-submit{background:var(--blue);color:#fff;padding:.8rem;border-radius:10px;font-weight:600;font-size:.9rem;border:none;cursor:pointer;transition:opacity .2s,transform .15s;font-family:'Inter',sans-serif;display:flex;align-items:center;justify-content:center;gap:.4rem}
.btn-submit:hover:not(:disabled){opacity:.88;transform:translateY(-1px)}
.btn-submit:disabled{opacity:.6;cursor:not-allowed}
.form-status{font-size:.85rem;margin-top:.25rem;display:none;padding:.6rem 1rem;border-radius:8px}
.form-status.success{display:block;background:rgba(5,150,105,.15);border:1px solid rgba(5,150,105,.3);color:#34d399}
.form-status.error{display:block;background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.25);color:#f87171}

/* ── FOOTER ── */
footer{background:var(--bg);border-top:1px solid var(--cardBorder);padding:2rem;text-align:center}
footer p{color:var(--textDim);font-size:.8rem}
footer span{color:var(--blue)}

/* ── SCROLL ANIMATIONS ── */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ── MOBILE ── */
/* ===============================
   TABLET
================================== */
@media (max-width: 992px){

  .hero-inner{
    grid-template-columns:1fr;
    text-align:center;
    gap:3rem;
  }

  .hero-photo{
    order:-1;
  }

  .hero-tagline{
    margin:0 auto 2rem;
  }

  .hero-btns,
  .hero-stats,
  .hero-titles{
    justify-content:center;
  }

  .about-grid,
  .contact-wrapper{
    grid-template-columns:1fr;
  }

  .services-grid,
  .projects-grid{
    grid-template-columns:1fr;
  }

  .skills-list{
    grid-template-columns:repeat(2,1fr);
  }

  .photo-ring{
    width:360px;
    height:360px;
  }

  .photo-glow{
    width:400px;
    height:400px;
  }
}

/* ===============================
   MOBILE
================================== */
@media (max-width:768px){

  nav{
    padding:0 1rem;
  }

  .nav-links,
  .nav-right{
    display:none;
  }

  .hamburger{
    display:flex;
  }

  .hero{
    padding:6rem 1.25rem 3rem;
    min-height:auto;
  }

  .hero h1{
    font-size:2.5rem;
  }

  .hero-tagline{
    font-size:.95rem;
  }

  .hero-stats{
    flex-direction:column;
    gap:1rem;
    align-items:center;
  }

  .stat{
    text-align:center;
  }

  .photo-ring{
    width:280px;
    height:280px;
  }

  .photo-glow{
    width:320px;
    height:320px;
  }

  .skills-list{
    grid-template-columns:1fr;
  }

  .section-title{
    font-size:2rem;
  }

  .section-sub{
    font-size:.9rem;
  }
}

/* ===============================
   SMALL MOBILE
================================== */
@media (max-width:480px){

  section{
    padding:4rem 1rem;
  }

  .hero h1{
    font-size:2rem;
  }

  .hero-badge{
    font-size:.65rem;
  }

  .photo-ring{
    width:220px;
    height:220px;
  }

  .photo-glow{
    width:260px;
    height:260px;
  }

  .btn-primary,
  .btn-outline{
    width:100%;
    justify-content:center;
  }

  .service-card,
  .project-card{
    padding:1.25rem;
  }

  .contact-link{
    font-size:.8rem;
    word-break:break-word;
  }
}

/* EDUCATION */
#education{
  background: var(--bg);
  padding: 100px 0;
}

.education-timeline{
  max-width:900px;
  margin:60px auto 0;
  display:flex;
  flex-direction:column;
  gap:25px;
}

.education-card{
  background:var(--card);
  border:1px solid var(--cardBorder);
  border-radius:20px;
  padding:28px;
  display:flex;
  gap:30px;
  transition:.35s;
}

.education-card:hover{
  transform:translateY(-5px);
  border-color:var(--blue);
  box-shadow:0 15px 40px rgba(79,142,247,.15);
}

.edu-year{
  min-width:180px;
  font-weight:700;
  color:var(--blue);
  font-size:1rem;
}

.edu-content h3{
  margin-bottom:8px;
  font-size:1.25rem;
}

.edu-content h4{
  color:#b8c0d9;
  margin-bottom:12px;
  font-weight:500;
}

.edu-content p{
  line-height:1.8;
  color:#c9d1e6;
}

.edu-list{
  padding-left:18px;
  color:#c9d1e6;
  line-height:1.9;
}

@media(max-width:768px){
  .education-card{
    flex-direction:column;
    gap:12px;
  }

  .edu-year{
    min-width:auto;
  }
}
/* EDUCATION IMAGE STYLE */
.edu-img{
  width:120px;
  height:120px;
  flex-shrink:0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--cardBorder);
}

.edu-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:0.3s;
}

.education-card:hover .edu-img img{
  transform:scale(1.05);
}

.education-card{
  display:flex;
  gap:25px;
  align-items:center;
}

@media(max-width:768px){
  .education-card{
    flex-direction:column;
    align-items:flex-start;
  }

  .edu-img{
    width:100%;
    height:180px;
  }
}