:root{
  --bg: #0b1020;
  --card: rgba(255,255,255,0.03);
  --accent: #7c5cff;
  --accent-alt: #5fb3ff;
  --muted:#98a0b0;
  --text: #e6eef6;
  --container: 1100px;
  --radius: 12px;
  --transition: 0.3s;
}

*{margin:0;padding:0;box-sizing:border-box;}
body{
  font-family:"Inter",sans-serif;
  background: linear-gradient(180deg,#071023 0%,#0b1020 100%);
  color: var(--text);
  line-height:1.6;
  scroll-behavior:smooth;
}

.container{max-width:var(--container);margin:0 auto;padding:0 1rem;}

/* HEADER */
.site-header{
  position: sticky;
  top:0;
  backdrop-filter: blur(10px);
  z-index: 100;
  background: rgba(11,16,32,0.8);
}
.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1rem 0;
}
.brand{
  font-weight:700;
  font-size:1.6rem;
  color: var(--text);
  text-decoration:none;
  letter-spacing:1px;
}
.nav-list{
  display:flex;
  gap:1.5rem;
  list-style:none;
}
.nav-list a{
  color: var(--muted);
  text-decoration:none;
  font-weight:500;
  position:relative;
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0; bottom:-4px;
  width:0%;
  height:2px;
  background: linear-gradient(90deg,red,orange,yellow,green,blue,indigo,violet);
  background-size: 400% 100%;
  animation: rgbLine 2s linear infinite;
  transition: width var(--transition);
}
.nav-list a:hover::after{width:100%;}

.nav-toggle{
  display:none;
  font-size:1.8rem;
  background:none;
  border:none;
  color: var(--text);
  cursor:pointer;
}

/* HERO */
.hero{
  padding:6rem 0 4rem;
}
.hero-inner{
  display:grid;
  grid-template-columns:1fr 360px;
  align-items:center;
  gap:3rem;
}
.hero-text h1{
  font-size:2.5rem;
  position: relative;
}
.hero-text h1::after{
  content:"";
  display:block;
  width:60px;
  height:4px;
  margin-top:6px;
  background: linear-gradient(90deg,red,orange,yellow,green,blue,indigo,violet);
  background-size: 400% 100%;
  animation: rgbLine 2s linear infinite;
  border-radius:2px;
}

.hero-text .name{color: var(--accent);}
.hero-text .lead{
  color: var(--muted);
  margin-top:.8rem;
  font-size:1.1rem;
}
.actions{
  margin-top:1.5rem;
  display:flex;
  gap:1rem;
}
.btn, .btn-contact{
  padding:.75rem 1.2rem;
  border-radius: var(--radius);
  background: linear-gradient(90deg,var(--accent),var(--accent-alt));
  color:white;
  text-decoration:none;
  font-weight:600;
  position:relative;
  overflow:hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn::before, .btn-contact::before{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(120deg,var(--accent),var(--accent-alt),var(--accent));
  transform: translateX(-100%);
  transition: transform 0.4s;
  z-index:-1;
}
.btn:hover::before, .btn-contact:hover::before{transform: translateX(0);}
.btn:hover, .btn-contact:hover{
  transform: scale(1.05);
  box-shadow:0 10px 25px rgba(124,92,255,0.35);
}
.btn.ghost{
  background:transparent;
  border:1px solid rgba(255,255,255,0.08);
}

/* HERO MEDIA */
.hero-media{
  display:flex;
  justify-content:center;
}
.photo-wrap{
  position:relative;
  width:280px;
  height:280px;
  border-radius:50%;
  display:grid;
  place-items:center;
  overflow:hidden;
}
.profile-photo{
  width:240px;
  height:240px;
  border-radius:50%;
  object-fit:cover;
  border:6px solid rgba(255,255,255,0.05);
  transition: transform 0.5s, box-shadow 0.5s;
}
.profile-photo:hover{
  transform: scale(1.05) rotate(3deg);
  box-shadow:0 0 20px var(--accent);
}
.photo-ring{
  position:absolute;
  inset:0;
  border-radius:50%;
  box-shadow:0 0 80px var(--accent);
  animation: ringRotate 8s linear infinite;
}
@keyframes ringRotate{
  0%{transform:rotate(0deg);}
  100%{transform:rotate(360deg);}
}
@keyframes rgbLine{
  0%{background-position:0 0;}
  100%{background-position:400% 0;}
}

/* HABILIDADES */
.skills-section{
  background: rgba(255,255,255,0.02);
  padding:2rem 0;
  text-align:center;
  border-top:1px solid rgba(255,255,255,0.05);
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.skills{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:.8rem;
  margin-top:1rem;
}
.skills span{
  background: rgba(255,255,255,0.05);
  padding:.6rem 1rem;
  border-radius: var(--radius);
  font-size:1rem;
  color: var(--accent);
  font-weight:600;
  transition: background var(--transition), box-shadow var(--transition);
}
.skills span:hover{
  background: rgba(124,92,255,0.25);
  box-shadow:0 0 10px var(--accent);
}

/* SOBRE */
.about{
  padding:5rem 0;
  text-align:center;
}
.about-text p{
  color:var(--muted);
  font-size:1.05rem;
  max-width:700px;
  margin:0 auto 1.5rem;
}

/* PROJETOS */
.projects{
  padding:4rem 0;
}
.projects h2{
  text-align:center;
  margin-bottom:3rem;
  position:relative;
}
.projects h2::after{
  content:"";
  display:block;
  width:100px;
  height:4px;
  margin:10px auto 0;
  background: linear-gradient(90deg,red,orange,yellow,green,blue,indigo,violet);
  background-size:400% 100%;
  animation: rgbLine 2s linear infinite;
  border-radius:2px;
}
.zigzag{
  display:flex;
  flex-direction:column;
  gap:4rem;
}
.project{
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:2rem;
  background: rgba(255,255,255,0.02);
  padding:1.5rem;
  border-radius: var(--radius);
  box-shadow:0 0 20px rgba(124,92,255,0.15);
  transition: transform 0.3s, box-shadow 0.3s;
}
.project:hover{
  transform: translateY(-6px);
  box-shadow:0 0 30px var(--accent);
}
.project.reverse{direction:rtl;text-align:right;}
.project.reverse .proj-text{direction:ltr;text-align:left;}
.proj-img img{
  width:100%;
  border-radius: var(--radius);
  box-shadow:0 12px 30px rgba(0,0,0,0.5);
  transition: transform 0.5s;
}
.proj-img img:hover{transform:translateY(-6px) scale(1.02);}
.proj-text p{color:var(--muted);margin-bottom:1rem;}
.proj-actions{display:flex;gap:.75rem;margin-top:1rem;}

/* TECH LIST */
.tech-list{
  display:flex;
  flex-wrap:wrap;
  gap:.4rem;
  margin:.3rem 0 1rem;
}
.tech-list span{
  background: rgba(255,255,255,0.05);
  padding:.35rem .7rem;
  border-radius:8px;
  font-size:.85rem;
  color:var(--muted);
  font-weight:500;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}
.tech-list span:hover{
  background: rgba(124,92,255,0.25);
  color: var(--text);
  box-shadow:0 0 10px var(--accent);
}

/* FOOTER */
.footer{
  padding:2rem 0;
  text-align:center;
  color: var(--muted);
  font-size:.9rem;
}

/* RESPONSIVO */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;text-align:center;gap:2rem;}
  .project{grid-template-columns:1fr;}
  .project.reverse{text-align:center;}
  .project.reverse .proj-text{text-align:center;}
  .nav-list{
    position:absolute;
    top:100%;
    right:0;
    flex-direction:column;
    background: rgba(11,16,32,0.95);
    width:220px;
    display:none;
    padding:1rem;
    border-radius: var(--radius);
    box-shadow:0 8px 20px rgba(0,0,0,0.3);
  }
  .nav-toggle{display:block;}
}

/* FADE-IN */
section{opacity:0;transform:translateY(20px);transition:opacity 0.8s ease, transform 0.8s ease;}
section.fade-in{opacity:1;transform:translateY(0);}