:root{
--bg:#0f172a;
--text:#f1f5f9;
--card:#1e293b;
--primary:#38bdf8;
}

body.light{
--bg:#f8fafc;
--text:#0f172a;
--card:#ffffff;
--primary:#2563eb;
}

*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Segoe UI, sans-serif;
scroll-behavior:smooth;
transition:.3s;
}

body{
background:var(--bg);
color:var(--text);
overflow-x:hidden;
}


/* particles */
#particles-js{
position:fixed;
width:100%;
height:100%;
top:0;
left:0;
z-index:-1;
}


/* cursor glow */
.cursor{
width:20px;
height:20px;
background:var(--primary);
border-radius:50%;
position:fixed;
pointer-events:none;
mix-blend-mode:screen;
}


/* progress bar */
#progressBar{
position:fixed;
top:0;
height:4px;
width:0;
background:var(--primary);
z-index:999;
}


/* navbar */
.navbar{
position:fixed;
top:20px;
left:50%;
transform:translateX(-50%);
width:90%;
padding:12px 40px;
border-radius:40px;
display:flex;
justify-content:space-between;
align-items:center;
background:rgba(255,255,255,.1);
backdrop-filter:blur(14px);
box-shadow:0 10px 25px rgba(0,0,0,.3);
}

.nav-links{
display:flex;
gap:30px;
}

.nav-links a{
color:var(--text);
text-decoration:none;
position:relative;
}

.nav-links a::after{
content:"";
position:absolute;
width:0;
height:2px;
bottom:-4px;
left:0;
background:var(--primary);
}

.nav-links a:hover::after{
width:100%;
}

.menu{display:none;cursor:pointer;}
.theme-btn{
background:var(--primary);
border:none;
padding:6px 10px;
border-radius:8px;
cursor:pointer;
}


/* hero */
.hero{
height:100vh;
display:flex;
flex-direction:column;
justify-content:center;
align-items:center;
gap:20px;
}

.profile{
width:380px;
border-radius:50%;
animation:float 4s infinite ease-in-out;
}

@keyframes float{
50%{transform:translateY(-15px)}
}

.btn{
background:var(--primary);
padding:12px 28px;
border:none;
border-radius:30px;
cursor:pointer;
}

.btn:hover{
transform:translateY(-4px);
box-shadow:0 0 20px var(--primary);
}


/* sections */
section{
padding:120px 10%;
text-align:center;
}


/* projects */
.projects{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:35px;
}

.card{
background:var(--card);
border-radius:18px;
overflow:hidden;
cursor:pointer;
transform-style:preserve-3d;
}

.card img{
width:100%;
height:220px;
object-fit:cover;
}

.card:hover{
transform:translateY(-10px) scale(1.05);
box-shadow:0 15px 35px rgba(0,0,0,.4);
}


/* skills */
.bar{
background:#334155;
height:8px;
border-radius:6px;
}

.bar span{
display:block;
width:0;
height:100%;
background:var(--primary);
}

.fade.show .bar span{
width:var(--w);
}


/* socials */
.socials i{
font-size:24px;
margin:12px;
cursor:pointer;
}

.socials i:hover{
color:var(--primary);
transform:translateY(-4px);
}


/* responsive */
@media(max-width:900px){
.projects{grid-template-columns:1fr;}
.nav-links{display:none;}
.menu{display:block;}
}
/* ======================
   CONTACT SECTION
====================== */

.contact{
  text-align:center;
}

/* buttons row */
.contact-box{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  justify-content:center;
  margin:30px 0 40px;
}

.contact-btn{
  background:var(--card);
  color:var(--text);
  border:none;
  padding:12px 22px;
  border-radius:30px;
  display:flex;
  align-items:center;
  gap:10px;
  cursor:pointer;
  text-decoration:none;
  font-weight:600;
  border:1px solid rgba(255,255,255,.1);
}

.contact-btn:hover{
  background:var(--primary);
  color:white;
  transform:translateY(-5px);
  box-shadow:0 0 15px var(--primary);
}


/* form */
.contact-form{
  max-width:500px;
  margin:auto;
  display:flex;
  flex-direction:column;
  gap:15px;
}

.contact-form input,
.contact-form textarea{
  padding:12px;
  border-radius:8px;
  border:none;
  background:var(--card);
  color:var(--text);
}

.contact-form textarea{
  min-height:120px;
  resize:none;
}