/* =========================
   BASE (CONFIGURAÇÃO GLOBAL)
========================= */

body {
  margin: 0;
  font-family: Arial, sans-serif;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* =========================
   TOPO (HEADER)
========================= */

.topo {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  position: absolute;
  width: 100%;
  box-sizing: border-box;
  color: white;
  z-index: 10;
  transition: all 0.3s ease;
}

/* LOGO */
.logo h1 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 2px;
}

.logo p {
  margin: 0;
  font-size: 12px;
  letter-spacing: 3px;
}

/* MENU */
.menu {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.menu a {
  margin-left: 20px;
  text-decoration: none;
  color: white;
  font-size: 12px;
  letter-spacing: 1px;
  transition: color 0.3s ease;
}

.menu a:hover {
  color: #00d4ff;
}

/* =========================
   HERO (FUNDO PRINCIPAL)
========================= */

.hero {
  height: 100vh;
  background-image: url("img/Fundo.jpeg");
  background-size: cover;
  background-position: center;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* overlay escuro transparente */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background-color 0.3s ease;
  z-index: 1;
}

/* conteúdo acima do overlay */
.hero .caixa {
  position: relative;
  z-index: 2;
}

/* modo escuro */
body.dark .hero::before {
  background: rgba(0, 0, 0, 0.45);
}

/* =========================
   CAIXA PRINCIPAL
========================= */

.caixa {
  padding: 60px 90px;
  text-align: center;
  border-radius: 10px;
  backdrop-filter: blur(5px);
  max-width: 90%;
  box-sizing: border-box;
  transition: all 0.4s ease;
  cursor: pointer;
}

/* modo claro */
body:not(.dark) .caixa {
  background: rgba(255, 255, 255, 0.6);
  color: #000;
}

/* modo escuro */
body.dark .caixa {
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
}

/* efeito hover */
.caixa:hover {
  transform: scale(1.03);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* hover claro */
body:not(.dark) .caixa:hover {
  background: rgba(0, 0, 0, 0.75);
  color: white;
}

/* hover escuro */
body.dark .caixa:hover {
  background: rgba(255, 255, 255, 0.15);
  color: white;
}

/* suaviza mudanças de cor */
.caixa * {
  transition: color 0.4s ease;
}

/* =========================
   PERFIL
========================= */

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

/* imagem de perfil */
.perfil img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid #00d4ff;
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.5);
  transition: transform 0.3s ease;
}

.perfil img:hover {
  transform: scale(1.05);
}

/* =========================
   TEXTO PERFIL
========================= */

.texto-perfil h2 {
  margin: 5px 0;
}

/* =========================
   ANIMAÇÃO HINT
========================= */

.hint {
  margin-top: 15px;
  font-size: 12px;
  opacity: 0.8;
  animation: pulse 1.5s infinite;
  letter-spacing: 0.5px;
}

@keyframes pulse {
  0% { opacity: 0.4; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-2px); }
  100% { opacity: 0.4; transform: translateY(0); }
}

/* =========================
   INFO EXTRA (EXPANDÍVEL)
========================= */

.info-extra {
  display: flex;
  gap: 20px;
  margin-top: 20px;
  justify-content: center;
  flex-wrap: wrap;

  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 0.5s ease;
}

/* ativo via JS */
.info-extra.ativo {
  max-height: 500px;
  opacity: 1;
}

/* cards informativos */
.info-card {
  width: 220px;
  padding: 15px;
  border-radius: 10px;
  text-align: center;
  background: rgba(255, 255, 255, 0.7);
  transition: all 0.3s ease;
}

.info-card:hover {
  transform: translateY(-5px);
  background: rgba(0, 0, 0, 0.8);
  color: white;
}

/* modo escuro */
body.dark .info-card {
  background: rgba(0, 0, 0, 0.6);
}

body.dark .info-card:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* =========================
   PROJETOS (PORTFÓLIO)
========================= */

.projetos {
  display: flex;
  gap: 20px;
  margin-top: 30px;
  justify-content: center;
  flex-wrap: wrap;
}

/* CARD */
.card {
  width: 220px;
  border-radius: 10px;
  overflow: hidden;
  text-align: center;
  background: rgba(255, 255, 255, 0.7);
  transition: all 0.3s ease;
}

/* imagem do card */
.card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

/* título */
.card h3 {
  margin: 10px 0;
  font-size: 16px;
}

/* link */
.card a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  text-decoration: none;
  color: #00d4ff;
  font-weight: bold;
}

/* hover card */
.card:hover {
  transform: translateY(-8px);
  background: rgba(0, 0, 0, 0.8);
}

.card:hover h3,
.card:hover a {
  color: white;
}

/* modo escuro */
body.dark .card {
  background: rgba(0, 0, 0, 0.6);
}

body.dark .card:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* =========================
   CONTATO (FORMULÁRIO)
========================= */

.caixa.contato {
  backdrop-filter: blur(8px);
  padding: 50px;
  max-width: 600px;
  width: 90%;
  border-radius: 15px;
}

/* inputs */
.caixa.contato input,
.caixa.contato textarea {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border: none;
  border-radius: 8px;
  outline: none;
  box-sizing: border-box;
}

/* claro */
body:not(.dark) .caixa.contato input,
body:not(.dark) .caixa.contato textarea {
  background: #fff;
  color: #000;
}

/* escuro */
body.dark .caixa.contato input,
body.dark .caixa.contato textarea {
  background: #222;
  color: #fff;
}

/* foco */
.caixa.contato input:focus,
.caixa.contato textarea:focus {
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
}

.caixa.contato textarea {
  height: 150px;
  resize: none;
}

/* botão */
.caixa.contato button {
  margin-top: 15px;
  padding: 10px 25px;
  border: none;
  border-radius: 5px;
  background: #000;
  color: #fff;
  cursor: pointer;
  transition: background 0.3s ease;
}

.caixa.contato button:hover {
  background: #444;
}

/* =========================
   ERROS / VALIDAÇÃO
========================= */

.erro {
  font-size: 12px;
  display: block;
  text-align: left;
  margin-bottom: 5px;
}

/* erro claro/escuro */
body:not(.dark) .erro { color: #000; }
body.dark .erro { color: #fff; }

/* inputs erro/sucesso */
.input-erro {
  box-shadow: 0 0 5px red;
  border: 1px solid red;
}

.input-sucesso {
  box-shadow: 0 0 5px #00d4ff;
  border: 1px solid #00d4ff;
}

/* hover força visibilidade */
.caixa:hover .erro {
  color: #fff !important;
}

/* =========================
   BOTÃO TEMA
========================= */

.btn-tema {
  margin-left: 20px;
  font-size: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: inherit;
  transition: transform 0.2s ease, color 0.3s ease;
}

.btn-tema:hover {
  color: #00d4ff;
  transform: scale(1.1);
}

/* =========================
   FOOTER
========================= */

footer {
  text-align: center;
  padding: 20px 10px;
  font-size: 14px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* modo claro */
body:not(.dark) footer {
  background-color: #f5f5f5;
  color: #000;
}

/* modo escuro */
body.dark footer {
  background-color: #000;
  color: #fff;
}

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

@media (max-width: 768px) {

  .topo {
    padding: 15px 20px;
  }

  .menu {
    justify-content: center;
  }

  .menu a {
    margin: 10px;
  }

  .caixa {
    padding: 30px 20px;
  }

  .hero {
    min-height: 100vh;
    height: auto;
  }
}