body{
  margin:0;
  font-family:'Poppins',sans-serif;
  color:#eee;
  background:linear-gradient(135deg,#000,#180000,#320000);
  min-height:100vh;
  overflow-x:hidden;
}

/* fundo tecnológico */
.tech-grid{
  position:fixed;
  width:100%;
  height:100%;
  background-image:
    linear-gradient(rgba(255,0,0,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,0,0,0.08) 1px, transparent 1px);
  background-size:40px 40px;
  z-index:-1;
  animation:gridMove 20s linear infinite;
}

@keyframes gridMove{
  0%{background-position:0 0;}
  100%{background-position:40px 40px;}
}

/* menu */
.hud-menu{
  position:fixed;
  top:0;
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:15px;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(10px);
  z-index:1000;
}

.menu-icon i{
  font-size:24px;
  color:#ff4d4d;
  cursor:pointer;
}

.menu-links{
  display:flex;
  gap:20px;
}

.menu-links a{
  color:#ff4d4d;
  text-decoration:none;
  font-family:Orbitron;
}

.menu-links a:hover{
  text-shadow:0 0 10px red;
}

/* menu mobile */
@media(max-width:700px){
  .menu-links{
    display:none;
    flex-direction:column;
    position:absolute;
    top:60px;
    left:0;
    width:100%;
    background: rgba(0,0,0,0.95);
    padding:15px 0;
    text-align:center;
    gap:10px;
    z-index:999;
  }
  .menu-links.active{
    display:flex;
  }
}

/* header */
header{
  text-align:center;
  padding:100px 20px;
}

.logo-nome{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:20px;
}

.spider-logo{
  width:50px;
  cursor:pointer;
}

/* h1 e h2 */
h1{
  font-family:'Orbitron';
  font-size:60px;
}

h2{
  font-family:'Orbitron';
  color:#ff4d4d;
  text-align:center;
}

/* seções */
section{
  max-width:900px;
  margin:auto;
  padding:60px 20px;
}

/* botão */
.botao{
  display:inline-block;
  margin-top:20px;
  padding:12px 25px;
  background:#ff2a2a;
  color:white;
  text-decoration:none;
  border-radius:8px;
}

/* tecnologias */
.tecnologias{
  display:flex;
  justify-content:center;
  gap:40px;
  flex-wrap:wrap;
}

.tech{
  text-align:center;
}

.tech i{
  font-size:40px;
  color:#ff2a2a;
  animation:flutuar 3s ease-in-out infinite;
}

@keyframes flutuar{
  0%{transform:translateY(0)}
  50%{transform:translateY(-8px)}
  100%{transform:translateY(0)}
}

/* cursos */
.lista-cursos{
  list-style:none;
  padding:0;
  margin-top:30px;
}

.lista-cursos li{
  background: #111;
  border:1px solid red;
  margin-bottom:8px;
  padding:8px 12px;
  border-radius:6px;
  font-size:0.9rem;
  color:white;
}

.lista-cursos li.python{border-left:5px solid #306998;}
.lista-cursos li.java{border-left:5px solid #f89820;}
.lista-cursos li.javascript{border-left:5px solid #f0db4f;}
.lista-cursos li.c{border-left:5px solid #555;}
.lista-cursos li.outros{border-left:5px solid #ff2a2a;}

/* projetos */
.projetos{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
  justify-content:center;
}

.card{
  background:#111;
  padding:20px;
  border-radius:10px;
  border:1px solid red;
  width:260px;
  text-align:center;
}

.card a{
  display:inline-block;
  margin-top:10px;
  padding:8px 15px;
  background:#ff2a2a;
  color:white;
  text-decoration:none;
  border-radius:6px;
}

.card a:hover{
  background:red;
}

/* teia */
.teia{
  position:fixed;
  left:50%;
  top:0;
  width:2px;
  background:white;
  height:0;
}

/* footer */
footer{
  text-align:center;
  padding:20px;
  background:#111;
}

/* mobile ajustes gerais */
@media(max-width:700px){
  h1{font-size:40px;}
  .tecnologias{gap:20px;}
  .card{width:100%;}
  section{padding:40px 20px;}
  header{padding-top:120px;}
}