*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#F7FAFD;
  --card:#FFFFFF;
  --navy:#042C53;
  --navy2:#0C447C;
  --blue:#378ADD;
  --blue-soft:#B5D4F4;
  --blue-tint:#E6F1FB;
  --text:#1C2B3A;
  --muted:#5F6B7A;
  --line:#DFE7F0;
  --disp:'Space Grotesk',sans-serif;
  --body:'Inter',sans-serif;
}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--blue);color:#fff}
section{scroll-margin-top:84px}
.wrap{max-width:1280px;margin:0 auto;padding:0 4vw}

/* ---------- PROGRESS BAR ---------- */
#progress{
  position:fixed;top:0;left:0;height:2px;width:0%;
  background:var(--blue);z-index:200;
  transition:width .08s linear;
  pointer-events:none;
}

/* ---------- NAV ---------- */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s,box-shadow .3s;
}
nav .wrap{display:flex;justify-content:space-between;align-items:center;padding-top:1.1rem;padding-bottom:1.1rem;transition:padding .3s}
nav.scrolled{background:rgba(247,250,253,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line)}
nav.scrolled .wrap{padding-top:.7rem;padding-bottom:.7rem}
.logo{font-family:var(--disp);font-weight:700;font-size:1.05rem;color:var(--navy);text-decoration:none}
.logo span{color:var(--blue)}
.nav-links{display:flex;gap:1.9rem;list-style:none}
.nav-links a{
  color:var(--muted);text-decoration:none;font-size:.85rem;font-weight:500;
  padding-bottom:.2em;border-bottom:2px solid transparent;
  transition:color .25s,border-color .25s;
}
.nav-links a:hover,
.nav-links a.active{color:var(--navy);border-color:var(--blue)}

/* lang toggle */
.nav-right{display:flex;align-items:center;gap:.5rem}
.cv-link{
  font-family:var(--disp);font-weight:600;font-size:.78rem;letter-spacing:.06em;
  color:var(--muted);text-decoration:none;border:1.5px solid var(--line);
  border-radius:6px;padding:.3em .75em;transition:color .25s,border-color .25s;
  margin-right:.25rem;
}
.cv-link:hover{color:var(--navy);border-color:var(--blue)}
.lang-btn{
  font-family:var(--disp);font-weight:700;font-size:.78rem;letter-spacing:.06em;
  color:var(--muted);background:none;border:1.5px solid var(--line);
  border-radius:6px;padding:.3em .75em;cursor:pointer;
  transition:color .25s,border-color .25s;margin-right:.5rem;
}
.lang-btn:hover{color:var(--navy);border-color:var(--blue)}

/* hamburger */
.burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:32px;height:32px;background:none;border:none;cursor:pointer;padding:2px;
}
.burger span{
  display:block;height:2px;background:var(--navy);border-radius:2px;
  transition:transform .25s,opacity .25s;
}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* mobile nav drawer */
.nav-drawer{
  display:none;position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(247,250,253,.97);backdrop-filter:blur(12px);
  z-index:99;flex-direction:column;justify-content:center;align-items:center;gap:2.5rem;
}
.nav-drawer.open{display:flex}
.nav-drawer a{
  font-family:var(--disp);font-weight:700;font-size:2rem;color:var(--navy);
  text-decoration:none;transition:color .2s;
}
.nav-drawer a:hover{color:var(--blue)}

/* ---------- HERO ---------- */
#hero{min-height:100vh;min-height:92svh;display:flex;align-items:center;padding-top:5rem}
.hero-inner{display:grid;grid-template-columns:1fr auto;gap:4rem;align-items:center}
.eyebrow{font-size:.76rem;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--blue);margin-bottom:1.4rem}
h1{
  font-family:var(--disp);font-weight:700;color:var(--navy);
  font-size:clamp(2.2rem,5vw,3.8rem);line-height:1.08;letter-spacing:-.02em;
}
h1 .dot{color:var(--blue)}
.tw-line{
  font-family:var(--disp);font-weight:700;
  font-size:clamp(1.1rem,2.6vw,1.55rem);
  color:var(--blue);margin-top:.9rem;min-height:2em;
  display:flex;align-items:center;gap:.1em;
}
.tw-cursor{
  display:inline-block;width:2px;height:1.1em;
  background:var(--blue);border-radius:1px;margin-left:2px;
  animation:blink .75s step-end infinite;
  vertical-align:middle;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.role{font-size:clamp(.95rem,1.8vw,1.1rem);color:var(--muted);margin-top:.6rem;max-width:38em}
.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem 2rem;margin-top:2.8rem}
.fact{border-left:2px solid var(--blue-soft);padding-left:1rem;font-size:.86rem;color:var(--muted);line-height:1.55}
.fact b{display:block;color:var(--navy);font-weight:600;font-size:.92rem}
.hero-cta{display:flex;gap:1rem;margin-top:2.8rem;flex-wrap:wrap}
.btn{
  display:inline-block;text-decoration:none;font-weight:600;font-size:.9rem;
  padding:.8em 1.7em;border-radius:8px;transition:background .25s,color .25s,border-color .25s;
}
.btn:hover{opacity:.88}
.btn-solid{background:var(--navy);color:#fff}
.btn-solid:hover{background:var(--blue)}
.btn-ghost{border:1.5px solid var(--line);color:var(--navy)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.status{display:inline-flex;align-items:center;gap:.55rem;background:var(--blue-tint);color:var(--navy2);font-size:.78rem;font-weight:600;padding:.4em 1em;border-radius:99px;margin-bottom:1.6rem}
.status i{
  width:8px;height:8px;border-radius:50%;background:var(--blue);
  box-shadow:0 0 0 0 rgba(55,138,221,.5);
  animation:ping 1.8s ease-out infinite;
}
@keyframes ping{
  0%{box-shadow:0 0 0 0 rgba(55,138,221,.5)}
  70%{box-shadow:0 0 0 7px rgba(55,138,221,0)}
  100%{box-shadow:0 0 0 0 rgba(55,138,221,0)}
}

/* avatar */
.avatar-wrap{
  width:220px;height:220px;border-radius:20px;overflow:hidden;
  border:3px solid var(--line);flex-shrink:0;
  background:var(--blue-tint);position:relative;
}
.avatar-wrap img{
  width:100%;height:100%;object-fit:cover;display:block;
}
.avatar-placeholder{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:.5rem;
  font-family:var(--disp);color:var(--blue-soft);
}
.avatar-placeholder .initials{font-size:3rem;font-weight:700;color:var(--blue)}
.avatar-placeholder .hint{font-size:.72rem;font-weight:600;color:var(--muted);text-align:center;padding:0 1rem}

/* ---------- SECTION HEAD ---------- */
.sec{padding:6rem 0}
.sec-head{display:flex;align-items:baseline;gap:1rem;margin-bottom:3rem}
.sec-head .no{font-family:var(--disp);font-weight:700;color:var(--blue);font-size:.95rem}
.sec-head h2{font-family:var(--disp);font-weight:700;color:var(--navy);font-size:clamp(1.7rem,4vw,2.5rem);letter-spacing:-.01em}
.sec-head::after{content:'';flex:1;height:1px;background:var(--line);transform:translateY(-6px)}

/* ---------- REVEAL ---------- */
[data-reveal]{transform:translateY(20px);transition:transform .6s ease,opacity .6s ease;transition-delay:var(--d,0s);opacity:1}
[data-reveal].rv{transform:none;opacity:1}

/* ---------- ABOUT ---------- */
.lede{font-family:var(--disp);font-weight:500;font-size:clamp(1.25rem,2.8vw,1.75rem);line-height:1.5;color:var(--navy);max-width:30em}
.lede em{font-style:normal;color:var(--blue)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-top:3rem}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:1.6rem 1.7rem;
  transition:border-color .3s;
}
.card:hover{border-color:var(--blue-soft)}
.card h3{font-family:var(--disp);font-weight:600;color:var(--navy);font-size:1.05rem;display:flex;justify-content:space-between;align-items:baseline;gap:1rem}
.card h3 span{font-size:.74rem;font-weight:600;color:var(--blue);letter-spacing:.08em;white-space:nowrap}
.card p{color:var(--muted);font-size:.92rem;margin-top:.7rem}
.card p b{color:var(--text);font-weight:600}
.lang-row{display:flex;align-items:baseline;gap:.8rem;margin-top:.85rem;font-size:.9rem}
.lang-row b{color:var(--text);font-weight:600}
.lang-row .dots{flex:1;border-bottom:2px dotted var(--line);transform:translateY(-4px)}
.lang-row span{color:var(--muted);font-size:.83rem}

/* ---------- PROJECTS ---------- */
.proj{
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--blue-soft);border-radius:0 14px 14px 0;
  padding:1.9rem 2rem;margin-bottom:1.4rem;
  transition:border-color .3s;
}
.proj:hover{border-left-color:var(--blue)}
.proj-top{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap}
.proj-top h3{font-family:var(--disp);font-weight:600;color:var(--navy);font-size:clamp(1.15rem,2.6vw,1.5rem)}
.proj-top h3 .no{color:var(--blue);margin-right:.5rem;font-size:.85em}
.p-tag{font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--navy2);background:var(--blue-tint);padding:.3em .9em;border-radius:99px;white-space:nowrap}
.proj .tech{font-size:.82rem;color:var(--blue);font-weight:500;margin-top:.35rem}
.proj p{color:var(--muted);font-size:.93rem;margin-top:.8rem;max-width:56em}
.p-flow{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin-top:.9rem;font-size:.83rem;font-weight:500;color:var(--navy)}
.p-flow i{font-style:normal;color:var(--blue)}
.p-extra{font-size:.85rem;color:var(--muted);margin-top:.7rem}
.p-extra b{color:var(--navy);font-weight:600}
.p-link{
  display:inline-flex;align-items:center;gap:.45rem;margin-top:1.1rem;
  color:var(--navy2);text-decoration:none;font-weight:600;font-size:.87rem;
  border-bottom:2px solid var(--blue-soft);padding-bottom:.15em;
  transition:color .25s,border-color .25s,gap .25s;
}
.p-link:hover{color:var(--blue);border-color:var(--blue);gap:.8rem}
.p-link+.p-link{margin-left:1.4rem}

/* ---------- SKILLS ---------- */
.skill-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.skill-group{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:1.4rem 1.6rem;
  transition:border-color .3s;
}
.skill-group:hover{border-color:var(--blue-soft)}
.skill-group h4{
  font-size:.7rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:var(--blue);margin-bottom:.9rem;
  display:flex;align-items:center;gap:.5rem;
}
.skill-group h4::before{content:'';width:6px;height:6px;border-radius:2px;background:var(--blue);flex-shrink:0}
.pills{display:flex;flex-wrap:wrap;gap:.45rem}
.pill{
  font-family:var(--disp);font-weight:600;font-size:.85rem;
  color:var(--navy2);background:var(--blue-tint);
  border:1px solid var(--blue-soft);
  padding:.3em .7em;border-radius:8px;
  transition:background .2s,border-color .2s,color .2s;
  cursor:default;
}
.pill:hover{background:var(--blue);border-color:var(--blue);color:#fff}

/* ---------- ACCOMPLISHMENTS ---------- */
.acc-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.acc-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:1.5rem 1.7rem;transition:border-color .3s;
}
.acc-item:hover{border-color:var(--blue-soft)}
.acc-item .acc-icon{font-size:1.4rem;margin-bottom:.7rem}
.acc-item h4{font-family:var(--disp);font-weight:600;color:var(--navy);font-size:1rem;margin-bottom:.5rem}
.acc-item p{color:var(--muted);font-size:.9rem;line-height:1.6}

/* ---------- CONTACT ---------- */
#contact{background:var(--navy);color:#fff;padding:6rem 0 0;margin-top:3rem}
.ct-tag{font-size:.76rem;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--blue-soft)}
.ct-head{font-family:var(--disp);font-weight:700;font-size:clamp(2rem,6vw,3.6rem);line-height:1.15;margin:1.2rem 0 2.2rem}
.ct-head em{font-style:normal;color:var(--blue-soft)}

/* copy email */
.ct-mail-wrap{position:relative;display:inline-block}
.ct-mail{
  display:inline-block;font-family:var(--disp);font-weight:600;font-size:clamp(1.1rem,2.8vw,1.7rem);
  color:#fff;text-decoration:none;overflow-wrap:anywhere;
  border-bottom:2px solid var(--blue);padding-bottom:.2em;
  transition:color .3s;cursor:pointer;
}
.ct-mail:hover{color:var(--blue-soft)}
.copy-tip{
  position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);
  background:var(--blue);color:#fff;font-size:.72rem;font-weight:600;
  padding:.3em .8em;border-radius:6px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:opacity .2s;
}
.copy-tip::before{
  content:'';position:absolute;bottom:100%;left:50%;transform:translateX(-50%);
  border:5px solid transparent;border-bottom-color:var(--blue);
}
.copy-tip.show{opacity:1}

.ct-links{display:flex;gap:1rem;margin-top:2.6rem;flex-wrap:wrap}
.ct-links a{
  display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;
  color:#fff;font-size:.87rem;font-weight:600;
  border:1.5px solid rgba(255,255,255,.3);border-radius:8px;padding:.75em 1.5em;
  transition:background .25s,border-color .25s,color .25s;
}
.ct-links a:hover{background:var(--blue);border-color:var(--blue)}
.ct-bar{
  display:flex;justify-content:space-between;align-items:center;gap:1.2rem;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.15);margin-top:4.5rem;padding:1.4rem 0;
  font-size:.78rem;color:rgba(255,255,255,.55);
}
.ct-bar span:first-child{color:rgba(255,255,255,.75)}
.ct-bar a{color:inherit;text-decoration:none;transition:color .25s}
.ct-bar a:hover{color:#fff}

/* ---------- RESPONSIVE ---------- */
@media(max-width:820px){
  .about-grid,.skill-grid,.acc-grid{grid-template-columns:1fr}
  .sec{padding:4.5rem 0}
  .hero-inner{grid-template-columns:1fr}
  .avatar-wrap{display:none}
}
@media(max-width:600px){
  .nav-links{display:none}
  .burger{display:flex}
  .hero-facts{grid-template-columns:1fr;gap:1.1rem}
  .proj{padding:1.4rem 1.3rem}
  .p-link+.p-link{margin-left:1rem}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001s!important;animation-duration:.001s!important}
  [data-reveal]{opacity:1;transform:none}
  .tw-cursor{animation:none}
  .status i{animation:none}
}