:root{
  --accent:#ff6f91;

  /* DARK MODE */
  --bg:#050b1a;
  --text:#ffffff;
  --card:rgba(255,255,255,.12);
  --code:#64f0ff;
}

[data-theme="light"]{
  /* LIGHT BLUE BACKGROUND */
  --bg:linear-gradient(180deg,#e6f2ff,#f3f9ff);
  --text:#0a1a3c;
  --card:rgba(0,0,0,.08);
  --code:#1f2f4f;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:Poppins,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;
  transition:background .4s,color .4s;
}

/* ================= BACKGROUND CODE ================= */
.code-bg{
  position:fixed;
  inset:0;
  perspective:1200px;
  z-index:-1;
  overflow:hidden;
}

.code-block{
  position:absolute;
  width:220px;
  padding:12px;
  border:1px solid var(--code);
  color:var(--code);
  font-family:monospace;
  font-size:11px;
  opacity:.25;
  transform-style:preserve-3d;
  animation:float linear infinite;
}

@keyframes float{
  from{
    transform:translateY(120vh) rotateX(0deg) rotateY(0deg);
  }
  to{
    transform:translateY(-200px) rotateX(360deg) rotateY(360deg);
  }
}

/* ================= NAV ================= */
nav{
  position:fixed;
  width:100%;
  padding:15px;
  display:flex;
  justify-content:center;
  gap:25px;
  background:rgba(0,0,0,.7);
  backdrop-filter:blur(10px);
  z-index:999;
}

nav a, nav button{
  color:#fff;
  text-decoration:none;
  font-weight:500;
  cursor:pointer;
  transition:transform .2s;
}

nav a:hover, nav button:hover{
  transform:translateY(-3px);
}

nav button{
  background:var(--accent);
  border:none;
  border-radius:20px;
  padding:5px 15px;
}

/* ================= HERO ================= */
.hero{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding-top:80px;
}

.hero-card{
  background:var(--card);
  padding:50px;
  border-radius:30px;
  text-align:center;
  max-width:700px;
}

.hero img{
  width:160px;
  height:160px;
  border-radius:50%;
  border:4px solid var(--accent);
  object-fit:cover;
  transition:transform .2s;
}

.hero img:hover{transform:scale(1.05)}

.social-icons{
  margin-top:20px;
  display:flex;
  justify-content:center;
}

.social-icons a{
  margin:0 10px;
  font-size:1.6rem;
  color:var(--text);
  transition:transform .2s,color .2s;
}

.social-icons a:hover{
  color:var(--accent);
  transform:translateY(-3px);
}

/* ================= SECTIONS ================= */
.section{
  max-width:1100px;
  margin:auto;
  padding:80px 20px;
}

h2{color:var(--accent)}

/* ================= SKILLS ================= */
.skill-card{
  margin-bottom:20px;
  transition:transform .2s;
}
.skill-card:hover{transform:translateY(-3px)}

.skill-bar{
  background:rgba(255,255,255,.2);
  height:12px;
  border-radius:8px;
  overflow:hidden;
}

.skill-level{
  height:12px;
  background:var(--accent);
  width:0;
  transition:width 1s ease-in-out;
}

/* ================= EDUCATION ================= */
.edu-card{
  display:grid;
  grid-template-columns:80px 1fr 1fr;
  gap:20px;
  background:var(--card);
  padding:25px;
  border-radius:20px;
  margin-bottom:25px;
  transition:transform .2s;
}
.edu-card:hover{transform:translateY(-3px)}

.edu-card img{
  width:70px;
  height:70px;
  border-radius:50%;
}

/* ================= COURSES ================= */
.course-card{
  background:var(--card);
  padding:20px;
  border-radius:18px;
  margin-bottom:20px;
  transition:transform .2s;
}
.course-card:hover{transform:translateY(-3px)}

/* ================= PROJECTS ================= */
.projects-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:25px;
}

.project{
  background:var(--card);
  padding:20px;
  border-radius:18px;
  cursor:pointer;
  transition:transform .2s;
}
.project:hover{transform:translateY(-3px)}

.project img{
  width:100%;
  height:150px;
  object-fit:cover;
  border-radius:14px;
}

/* FILTER BUTTONS */
#projectFilters button{
  border:none;
  border-radius:999px;
  padding:8px 18px;
  margin:5px;
  cursor:pointer;
  background:var(--accent);
  color:#fff;
}

/* ================= NAME BOUNCE ================= */
@keyframes bound{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-15px)}
}
.bound-letter{
  display:inline-block;
  animation:bound .6s ease forwards;
}

/* ================= POPUP ================= */
.section-popup{
  position:fixed;
  top:60px;
  left:50%;
  transform:translateX(-50%);
  background:var(--accent);
  color:#fff;
  padding:8px 20px;
  border-radius:20px;
  opacity:0;
  transition:opacity .4s;
  z-index:1000;
}
.section-popup.show{opacity:1}