* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --bg-primary: #ffffff;
      --bg-secondary: #f9fafb;
      --text-primary: #1e293b;
      --text-secondary: #475569;
      --text-muted: #94a3b8;
      --accent: #6366f1;         /* tom roxo/azul minimalista */
      --accent-hover: #4f46e5;
      --border-light: #e2e8f0;
      --shadow-sm: 0 1px 2px rgba(0,0,0,0.03);
      --shadow-card: 0 4px 12px rgba(0,0,0,0.04);
      --radius-md: 0.75rem;
      --radius-sm: 0.5rem;
      --max-width: 1120px;
      --header-height: 4.5rem;
      --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: var(--header-height);
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    /* ===== TIPOGRAFIA ===== */
    h2 {
      font-size: clamp(2rem, 5vw, 2.5rem);
      font-weight: 600;
      letter-spacing: -0.02em;
      margin-bottom: 0.5rem;
    }

    .section-subtitle {
      color: var(--text-secondary);
      font-size: 1.1rem;
      max-width: 560px;
      margin-bottom: 3rem;
    }

    /* ===== HEADER / NAV (STICKY) ===== */
    .header {
      position: sticky;
      top: 0;
      z-index: 50;
      background-color: rgba(255,255,255,0.82);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      height: var(--header-height);
      display: flex;
      align-items: center;
    }

    .nav-container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-weight: 600;
      font-size: 1.4rem;
      color: var(--text-primary);
      text-decoration: none;
      letter-spacing: -0.02em;
    }
    .logo span {
      color: var(--accent);
    }

    .nav-links {
      display: flex;
      gap: 2.2rem;
      list-style: none;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s;
      position: relative;
    }

    .nav-links a:hover,
    .nav-links a:focus {
      color: var(--accent);
    }

    .logo {
    display: flex;
    align-items: center;
    gap: 0.6rem; /* Espaçamento elegante entre a imagem e o texto */
    text-decoration: none;
    color: var(--text-primary);
    }

    /* Configuração da imagem da logo */
    .logo-img {
    height: 32px;       /* Define uma altura máxima para não estourar o header */
    width: auto;        /* Mantém a proporção correta da sua imagem */
    object-fit: contain;
    }

    /* Ajuste fino para telas menores (responsivo) */
    @media (max-width: 768px) {
    .logo-img {
    height: 28px;     /* Reduz levemente o tamanho em celulares */
    }
    }

    /* menu hambúrguer (mobile) */
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
    }
    .hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-primary);
      border-radius: 2px;
      transition: 0.3s;
    }

    /* ===== SEÇÕES GERAIS ===== */
    .section {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 5rem 2rem;
    }

    .bg-soft {
      background-color: var(--bg-secondary);
    }

    /* ===== SOBRE ===== */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }

    .about-text p {
      color: var(--text-secondary);
      margin-bottom: 1.2rem;
      font-size: 1.05rem;
      max-width: 90%;
    }

    .about-highlight {
      display: inline-block;
      background: var(--bg-secondary);
      border-left: 3px solid var(--accent);
      padding: 0.8rem 1.2rem;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      color: var(--text-primary);
      font-weight: 500;
      margin-top: 0.5rem;
    }

    /* placeholder visual */
    .about-visual {
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .placeholder-avatar {
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: linear-gradient(135deg, #e0e7ff 0%, #f0f4ff 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 3.5rem;
      box-shadow: var(--shadow-card);
    }

    /* ===== HABILIDADES ===== */
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
      gap: 1.5rem;
      margin-top: 1rem;
    }

    .skill-tag {
      background: white;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 1.2rem 1rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.6rem;
      transition: all 0.2s;
      font-weight: 500;
      color: var(--text-primary);
      box-shadow: var(--shadow-sm);
    }

    .skill-tag i {
      font-size: 1.8rem;
      color: var(--accent);
    }

    .skill-tag span {
      font-size: 0.9rem;
    }

    .skill-tag:hover {
      border-color: var(--accent);
      box-shadow: 0 8px 18px rgba(99,102,241,0.08);
    }

    /* ===== PROJETOS (CARDS) ===== */
    .projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
    }

    .project-card {
      background: white;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .project-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 14px 24px rgba(0,0,0,0.05);
    }

    .card-img {
      height: 180px;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-muted);
      font-size: 2rem;
      background: linear-gradient(135deg, #f8fafc, #eef2ff);
    }

    .card-content {
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .card-content h3 {
      font-weight: 600;
      font-size: 1.25rem;
      margin-bottom: 0.5rem;
    }

    .card-content p {
      color: var(--text-secondary);
      font-size: 0.95rem;
      margin-bottom: 1.5rem;
      flex: 1;
    }

    .btn {
      display: inline-block;
      background: transparent;
      border: 1px solid var(--accent);
      color: var(--accent);
      font-weight: 600;
      font-size: 0.9rem;
      padding: 0.6rem 1.4rem;
      border-radius: 2rem;
      text-decoration: none;
      transition: all 0.2s;
      align-self: flex-start;
    }

    .btn:hover {
      background: var(--accent);
      color: white;
    }

    /* ===== CONTATO ===== */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
      align-items: start;
    }

    .social-links {
      display: flex;
      gap: 1.5rem;
      margin-bottom: 2rem;
    }

    .social-links a {
      color: var(--text-secondary);
      font-size: 1.6rem;
      transition: color 0.2s;
    }

    .social-links a:hover {
      color: var(--accent);
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 1.2rem;
    }

    .form-group input,
    .form-group textarea {
      width: 100%;
      padding: 0.9rem 1rem;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-family: var(--font-sans);
      font-size: 0.95rem;
      background: white;
      transition: border 0.2s;
    }

    .form-group input:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
    }

    .btn-submit {
      background: var(--accent);
      color: white;
      border: none;
      padding: 0.8rem 2rem;
      border-radius: 2rem;
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      transition: background 0.2s;
      align-self: flex-start;
    }

    .btn-submit:hover {
      background: var(--accent-hover);
    }

    /* ===== FOOTER ===== */
    .footer {
      text-align: center;
      padding: 2rem;
      color: var(--text-muted);
      font-size: 0.9rem;
      border-top: 1px solid var(--border-light);
      margin-top: 2rem;
    }

    /* ===== ESTILOS DO MODAL / POPUP ===== */
.category-card {
  cursor: pointer;
}
.btn-explore {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.2s;
}
.category-card:hover .btn-explore {
  gap: 0.8rem;
  color: var(--accent-hover);
}

/* Fundo escurecido e borrado */
.modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Caixa do Popup */
.modal-container {
  background: white;
  width: 90%;
  max-width: 900px;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}
.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header h3 {
  font-size: 1.4rem;
  font-weight: 600;
}
.modal-close-btn {
  background: none; border: none;
  font-size: 2rem; color: var(--text-secondary);
  cursor: pointer; transition: color 0.2s;
}
.modal-close-btn:hover { color: #ef4444; }

.modal-body {
  padding: 2rem;
  overflow-y: auto;
}

/* Grid de Miniaturas dentro do Popup */
.modal-projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

/* Mini Card do Projeto */
.mini-project-card {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}
.mini-project-card:hover {
  border-color: var(--accent);
}
.mini-img-holder {
  height: 130px;
  overflow: hidden;
}
.mini-img-holder img {
  width: 100%; height: 100%; object-fit: cover;
}
.mini-content {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.mini-content h4 {
  font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem;
}

    /* ===== RESPONSIVO ===== */
    @media (max-width: 768px) {
      .hamburger {
        display: flex;
      }

      .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(12px);
        flex-direction: column;
        align-items: center;
        gap: 1.8rem;
        padding: 2rem 0;
        border-bottom: 1px solid var(--border-light);
        transform: translateY(-150%);
        transition: transform 0.35s ease;
        box-shadow: var(--shadow-card);
      }

      .nav-links.active {
        transform: translateY(0);
      }

      .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
      }
      .about-text p {
        max-width: 100%;
      }
      .about-visual {
        order: -1;
      }

      .contact-wrapper {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 480px) {
      .section {
        padding: 3.5rem 1.2rem;
      }
      .skills-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }