:root {
  --bg:#05070d;
  --card:#0b1220;
  --muted:#9aa4b2;
  --accent:#6366f1;
  --accent2:#ec4899;
  --glass: rgba(255,255,255,0.05);
  --radius:18px;
  color-scheme: dark;
}

* {
  box-sizing:border-box;
}

body {
  margin:0;
  font-family:Inter,system-ui,Segoe UI,Roboto,"Helvetica Neue",Arial;
  background:radial-gradient(circle at 20% 20%,#111827,#05070d 80%);
  color:#e6eef8;
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
  overflow-x:hidden;
}

.container {
  max-width:1200px;
  margin:0 auto;
  padding:32px;
}

/* Header */
header {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
  position:sticky;
  top:0;
  background:rgba(5,7,13,0.8);
  backdrop-filter:blur(10px);
  z-index:1000;
  padding:12px 24px;
  border-radius:var(--radius);
}

.brand {
  display:flex;
  align-items:center;
  gap:12px;
  animation:fadeIn 1s ease forwards;
}

.logo {
  width:60px;
  height:60px;
  border-radius:50%;
  background:conic-gradient(from 180deg,var(--accent),var(--accent2),var(--accent));
  display:grid;
  place-items:center;
  font-weight:800;
  color:white;
  font-size:20px;
  box-shadow:0 0 18px rgba(236,72,153,0.4);
  animation:spin 6s linear infinite;
}

.brand h1 {
  font-size:20px;
  margin:0;
}

nav {
  display:flex;
  gap:18px;
  align-items:center;
}

nav a {
  color:var(--muted);
  text-decoration:none;
  padding:8px 14px;
  border-radius:12px;
  font-weight:600;
  position:relative;
  overflow:hidden;
  transition:.3s;
}

nav a::after {
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  transform:scaleX(0);
  transition:.3s;
  transform-origin:right;
}

nav a:hover {
  color:white;
}

nav a:hover::after {
  transform:scaleX(1);
  transform-origin:left;
}

/* Botão hambúrguer */
.menu-toggle {
  display:none;
  flex-direction:column;
  gap:4px;
  cursor:pointer;
}
.menu-toggle span {
  width:24px;
  height:3px;
  background:white;
  border-radius:4px;
  transition:0.3s;
}
.menu-open .menu-toggle span:nth-child(1) {
  transform:rotate(45deg) translateY(8px);
}
.menu-open .menu-toggle span:nth-child(2) {
  opacity:0;
}
.menu-open .menu-toggle span:nth-child(3) {
  transform:rotate(-45deg) translateY(-8px);
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 360px; /* esquerda: texto, direita: foto */
  gap: 28px;
  align-items: center;
  margin-bottom: 32px;
}

.card {
  background:linear-gradient(145deg,rgba(255,255,255,0.02),rgba(255,255,255,0.005));
  border-radius:var(--radius);
  padding:28px;
  box-shadow:0 12px 40px rgba(0,0,0,0.6);
  border:1px solid rgba(255,255,255,0.04);
  backdrop-filter:blur(6px);
  animation:fadeUp 1s ease forwards;
  transition:transform .3s;
}
.card:hover {
  transform:translateY(-6px);
}

.intro h2 {
  margin:0;
  font-size:30px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;
  color:transparent;
}

.intro p {
  color:var(--muted);
  margin-top:12px;
}

.cta {
  display:flex;
  gap:14px;
  margin-top:20px;
}

.btn {
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  color:white;
  padding:12px 16px;
  border-radius:12px;
  text-decoration:none;
  font-weight:700;
  box-shadow:0 6px 20px rgba(99,102,241,0.4);
  transition:.3s;
}
.btn:hover {
  transform:translateY(-2px) scale(1.05);
  box-shadow:0 10px 28px rgba(236,72,153,0.4);
}

.ghost {
  background:transparent;
  border:1px solid rgba(255,255,255,0.08);
  color:var(--muted);
  padding:12px 16px;
  border-radius:12px;
  text-decoration:none;
  font-weight:700;
  transition:.3s;
}
.ghost:hover {
  color:white;
  border-color:var(--accent);
  transform:translateY(-2px);
}

/* Profile */
.profile-card {
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  transition:transform .3s;
}
.profile-card:hover {
  transform:translateY(-4px);
}

.avatar-img {
  width:140px;
  height:140px;
  border-radius:50%;
  object-fit:cover;
  object-position:50% 10%;
  box-shadow:0 0 18px rgba(99,102,241,0.3);
}

/* Skills */
.grid-3 {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.skill {
  background:var(--glass);
  padding:18px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.04);
  transition:.4s;
}
.skill:hover {
  transform:translateY(-6px);
  box-shadow:0 12px 24px rgba(236,72,153,0.3);
}
.skill h4 {
  margin:0 0 8px 0;
  color:var(--accent);
}

/* Projects */
.projects {
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.project {
  padding:18px;
  border-radius:14px;
  background:var(--glass);
  border:1px solid rgba(255,255,255,0.04);
  position:relative;
  overflow:hidden;
  transition:transform .4s, box-shadow .4s;
}
.project::before {
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,var(--accent) 0%,var(--accent2) 100%);
  opacity:0;
  transition:.4s;
  z-index:0;
}
.project:hover {
  transform:translateY(-8px);
  box-shadow:0 14px 30px rgba(99,102,241,0.4);
}
.project:hover::before {
  opacity:0.12;
}
.project h4 {
  margin:0 0 8px 0;
  position:relative;
  z-index:1;
  color:var(--accent2);
}
.project p {
  color:var(--muted);
  margin:0;
  position:relative;
  z-index:1;
}

.project-links {
  margin-top: 12px;
  display: flex;
  gap: 10px;
}

.btn-sm {
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: white;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: 0.3s;
}
.btn-sm:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(236,72,153,0.4);
}

.ghost-sm {
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}
.ghost-sm:hover {
  border-color: var(--accent);
  color: white;
}

/* Contact */
.contact {
  display:flex;
  gap:16px;
  align-items:center;
}
.socials {
  display:flex;
  gap:10px;
}
.socials a {
  display:inline-grid;
  place-items:center;
  width:44px;
  height:44px;
  border-radius:50%;
  background:var(--glass);
  text-decoration:none;
  transition:.3s;
}
.socials a:hover {
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  transform:scale(1.1);
}

footer {
  color:var(--muted);
  font-size:13px;
  padding-top:20px;
  text-align:center;
  border-top:1px dashed rgba(255,255,255,0.04);
  margin-top:28px;
}

/* Animations */
@keyframes fadeIn {0%{opacity:0;transform:translateY(-10px)}100%{opacity:1;transform:none}}
@keyframes fadeUp {0%{opacity:0;transform:translateY(20px)}100%{opacity:1;transform:none}}
@keyframes spin {0%{transform:rotate(0)}100%{transform:rotate(360deg)}}

/* ================================
   RESPONSIVIDADE
   ================================ */

/* Tablets (até 1024px) */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }

  .profile-card {
    margin: 0 auto;
  }

  nav {
    gap: 12px;
  }

  .projects {
    grid-template-columns: 1fr;
  }
}

/* Celulares grandes (até 768px) */
@media (max-width: 768px) {
  header {
    flex-direction: row;
    justify-content: space-between;
    position: relative; /* necessário pro absolute funcionar */
  }

  nav {
    display: none;
    flex-direction: column;
    gap: 12px;
    position: absolute;
    top: 100%;  /* aparece logo abaixo do header */
    left: 0;
    width: 100%;
    background: rgba(5,7,13,0.95);
    padding: 16px;
    border-radius: 0 0 12px 12px;
  }

  .menu-open nav {
    display: flex;
  }

  nav a {
    text-align: center;
    padding: 12px;
    width: 100%;
  }

  .menu-toggle {
    display:flex;
  }
}

/* Celulares pequenos (até 480px) */
@media (max-width: 480px) {
  .hero {
    text-align: center;
  }

  .intro h2 {
    font-size: 22px;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .project {
    padding: 14px;
  }

  .btn-sm,
  .ghost-sm {
    flex: 1;
    text-align: center;
    font-size: 13px;
    padding: 6px 10px;
  }

  footer {
    font-size: 12px;
    line-height: 1.4;
  }
}
.project-links {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  position: relative;
  z-index: 2; /* garante que os botões fiquem acima do overlay */
}

.project::before {
  z-index: 0; /* overlay sempre por baixo */
}

.project h4,
.project p {
  position: relative;
  z-index: 1;
}

/* Modal base */
.modal {
  display: none; /* escondido por padrão */
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  justify-content: center;
  align-items: center;
}

/* Caixa do modal */
.modal-content {
  background: var(--card);
  padding: 24px;
  border-radius: var(--radius);
  width: 90%;
  max-width: 500px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.6);
  animation: fadeUp 0.4s ease;
}

.modal-content h3 {
  margin-top: 0;
  color: var(--accent);
}

.cert-list {
  margin: 16px 0 0;
  padding-left: 16px;
  color: var(--muted);
}

.cert-list li {
  margin-bottom: 8px;
  font-size: 15px;
}

.close {
  float: right;
  font-size: 22px;
  cursor: pointer;
  color: var(--muted);
  transition: 0.3s;
}

.close:hover {
  color: var(--accent2);
}