:root{
  --bg:#000000;
  --accent:#ff0033;
  --glow:#fffb00;
  --matrix:#ff2222;
  --text:#f5f0e6;
  --card-bg:rgba(15,0,0,0.65);
}
[data-theme="cyber"]{
  --accent:#00ffea;
  --glow:#39ff14;
  --matrix:#00ffaa;
  --card-bg:rgba(0,20,15,0.6);
}

*{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;overflow:hidden;}
body{
  font-family:'Share Tech Mono', monospace;color:var(--text);
  display:flex;align-items:center;justify-content:center;perspective:1000px;
  background:radial-gradient(circle at center, #1a0000 0%, #000 100%);
}

canvas#matrix{position:fixed;inset:0;z-index:0;display:block;}

.scanlines{position:fixed;inset:0;z-index:1;pointer-events:none;
background-image:repeating-linear-gradient(180deg, rgba(255,0,0,0.04) 0, rgba(255,0,0,0.04) 1px, transparent 1px, transparent 3px);
opacity:0.4}

.grid{position:fixed;inset:0;z-index:2;pointer-events:none;
background-image:linear-gradient(var(--glow) 1px, transparent 1px), linear-gradient(90deg, var(--glow) 1px, transparent 1px);
background-size:100px 100px;opacity:0.05;mix-blend-mode:overlay;animation:move 20s linear infinite;}
@keyframes move{from{background-position:0 0,0 0}to{background-position:100px 100px,100px 100px}}

.card{
  position:relative;z-index:5;
  background:var(--card-bg);
  border:1px solid rgba(255,0,0,0.25);
  padding:2rem 3rem;border-radius:14px;
  box-shadow:0 0 25px rgba(255,0,0,0.35),0 0 10px rgba(255,255,0,0.15);
  text-align:center;max-width:680px;
  backdrop-filter:blur(8px) saturate(140%);
  transition:transform 0.2s ease;
  transform-style:preserve-3d;
}

.avatar{
  width:120px;height:120px;border-radius:50%;
  background:url('profile.jpg') center/cover;
  margin:0 auto 1.5rem;border:2px solid var(--accent);
  box-shadow:0 0 25px rgba(255,0,0,0.55);
  transition:transform 0.5s, box-shadow 0.5s;
  transform-style:preserve-3d;
}
.avatar:hover{
  transform:rotateY(15deg) rotateX(10deg) scale(1.05);
  box-shadow:0 0 35px var(--accent),0 0 65px var(--glow);
}

h1{font-family:'Orbitron', sans-serif;font-size:2.2rem;color:var(--accent);margin-bottom:0.5rem;letter-spacing:3px;text-shadow:0 0 10px var(--accent),0 0 20px var(--accent)}
h2{font-size:1rem;margin-bottom:1.25rem;color:var(--glow);letter-spacing:1px;text-shadow:0 0 5px var(--glow);min-height:20px}
p{font-size:1rem;line-height:1.45;margin-bottom:1.25rem;color:rgba(245,240,230,0.95)}

.btns{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}
.btn{
  padding:.6rem 1rem;border:1px solid rgba(255,255,0,0.25);
  border-radius:8px;color:var(--glow);font-family:'Share Tech Mono';
  cursor:pointer;text-decoration:none;transition:0.3s ease;backdrop-filter:blur(4px);
  position:relative;overflow:hidden;
}
.btn::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(120deg, transparent, var(--accent), transparent);
  transform:translateX(-100%);
  transition:0.5s;
}
.btn:hover::before{transform:translateX(100%)}
.btn:hover{color:#fff;box-shadow:0 0 20px var(--accent)}

.info-box{
  margin-top:1rem;
  background:rgba(0,0,0,0.35);
  border:1px solid rgba(255,255,255,0.06);
  padding:0.8rem 1rem;border-radius:8px;font-size:0.95rem;
  text-align:left;max-width:560px;margin-left:auto;margin-right:auto;
}

.theme-toggle{
  position:fixed;top:15px;right:15px;z-index:10;
  background:var(--card-bg);color:var(--glow);
  border:1px solid var(--accent);border-radius:6px;
  padding:6px 12px;cursor:pointer;
}

.footer-note{
  margin-top:0.6rem;font-size:0.8rem;color:rgba(255,255,255,0.6);text-align:center;
}

@media (max-width:640px){
  .card{padding:1.25rem 1.4rem;margin:1rem;width:92%}
  .avatar{width:96px;height:96px}
}