:root {
  --bg-color: #0a0a0a;
  --card-bg: #141414;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --accent: #818cf8;
  --ux-color: #f63c9c;
  --front-color: #3b82f6;
  --tools-color: #22c55e;
  --general-color: #f97316;
}

/* --- Reset & Global --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden;
  width: 100%;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  padding-top: 80px;
}

/* --- Navigation --- */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 8%;
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  background: rgba(10, 10, 10, 0.98);
  z-index: 1000;
  transition: transform 0.4s ease-in-out;
  box-shadow: none;
  border: none;
}

nav.nav-hidden {
  transform: translateY(-100%);
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -1px;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

.nav-list a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.nav-list a:hover {
  color: var(--text-primary);
}

/* Language Button */
.btn-lang {
  background: transparent;
  border: 2px solid #333;
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.8rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
}

.btn-lang:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

/* Menu Mobile (Hamburger) */
.mobile-menu {
  display: none;
  cursor: pointer;
}

.mobile-menu div {
  width: 28px;
  height: 3px;
  background: #fff;
  margin: 6px;
  transition: 0.3s;
}

/* --- Hero Section --- */
#hero {
  padding: 140px 8% 160px;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -1px;
}

.subtitle {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 30px;
}

.btn-hero {
  display: inline-block;
  padding: 10px 25px;
  border-radius: 30px;
  border: 2px solid #333;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  margin-right: 15px;
  transition: all 0.3s ease;
}

.btn-hero:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* --- General Sections --- */
section {
  padding: 100px 8% 0;
}

.section-title {
  display: inline-block;
  margin-bottom: 60px;
  padding: 8px 22px;
  font-size: 1.5rem;
  font-weight: 600;
  border: 2px solid #333;
  border-radius: 999px;
}

/* --- Projetos --- */
.projetos-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 60px;
  flex-wrap: wrap;
  gap: 20px;
}

.projetos-header .section-title {
  margin-bottom: 0;
}

.filter-buttons {
  display: flex;
  gap: 15px;
}

.filter-btn {
  background: transparent;
  border: 2px solid #333;
  color: #b0b0b0;
  padding: 8px 24px;
  border-radius: 999px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.filter-btn[data-filter="ux"]:hover,
.filter-btn[data-filter="ux"].active {
  border-color: var(--ux-color);
  color: var(--ux-color);
  box-shadow: 0 0 10px rgba(246, 60, 156, 0.2);
}

.filter-btn[data-filter="front"]:hover,
.filter-btn[data-filter="front"].active {
  border-color: var(--front-color);
  color: var(--front-color);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

/* --- Sobre Mim --- */
.sobre-container {
  display: flex;
  gap: 50px;
  justify-content: space-between;
  align-items: flex-start;
}

.sobre-texto p {
  max-width: 650px;
  color: var(--text-secondary);
  font-size: 1.15rem;
  line-height: 1.75;
  margin-bottom: 20px;
}

.sobre-foto img {
  width: 100%;
  max-width: 420px;
  height: auto;
  object-fit: cover;
  border-radius: 28px;
  border: 2px solid #222;
  transition: transform 0.3s ease;
}

.sobre-foto img:hover {
  transform: scale(1.02);
  border-color: var(--accent);
}

/* --- Grid & Cards --- */
.grid-projetos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.card {
  background-color: #1f1f1f;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  backface-visibility: hidden;
  transform: translateZ(0);
  transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.4);
}

.card img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.card-info {
  padding: 20px;
}

.card-info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.project-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: transparent;
  border-width: 2px;
  border-style: solid;
  transform: translateZ(0);
}

.project-tag.ux { border-color: var(--ux-color); color: var(--ux-color); }
.project-tag.front { border-color: var(--front-color); color: var(--front-color); }

.card-info p {
  font-size: 0.95rem;
  color: #bdbdbd;
  line-height: 1.5;
}

.card, .card * {
  text-decoration: none;
  color: inherit;
}

/* --- Habilidades --- */
.skills-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  padding-bottom: 160px;
}

.skill-title {
  font-size: 1.1rem;
  margin-bottom: 20px;
  border-bottom: 1px solid #222;
  padding-bottom: 10px;
}

.skill-title.ux { color: var(--ux-color); }
.skill-title.front { color: var(--front-color); }
.skill-title.tools { color: var(--tools-color); }
.skill-title.general { color: var(--general-color); }

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.skills-list span {
  padding: 10px 22px;
  background: #1a1a1a;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 2px solid #333;
  transition: all 0.3s ease;
  cursor: default;
}

.skills-list.ux span:hover { border-color: var(--ux-color); color: var(--ux-color); }
.skills-list.front span:hover { border-color: var(--front-color); color: var(--front-color); }
.skills-list.tools span:hover { border-color: var(--tools-color); color: var(--tools-color); }
.skills-list.general span:hover { border-color: var(--general-color); color: var(--general-color); }

/* --- Currículo --- */
#curriculo {
  padding-bottom: 120px;
  text-align: center;
}

.curriculo-texto {
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.curriculo-container {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.card-curriculo {
  display: flex;
  align-items: center;
  background: #1f1f1f;
  border: 2px solid #333;
  padding: 20px 30px;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  width: 280px;
}

.card-curriculo:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
  background: #252525;
}

.icon-cv {
  font-size: 2rem;
  margin-right: 20px;
  background: rgba(255, 255, 255, 0.05);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.info-cv { text-align: left; }
.info-cv h3 { font-size: 1rem; color: var(--text-primary); margin-bottom: 4px; }
.info-cv span { font-size: 0.85rem; color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }

/* --- Contato --- */
#contato {
  text-align: center;
  padding-bottom: 120px;
}

.contato-texto {
  max-width: 600px;
  margin: 0 auto 40px;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.email-destaque {
  display: inline-block;
  font-size: clamp(1.2rem, 4vw, 2rem);
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 40px;
  border: 2px solid #ffffff;
  border-radius: 50px;
  padding: 15px 40px;
  user-select: all;
  -webkit-user-select: all;
  cursor: text;
}

.email-destaque:hover { border-color: var(--accent); color: var(--accent); }

.contato-links {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.btn-social {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: 999px;
  background: #1a1a1a;
  border: 1px solid #333;
  transition: all 0.3s ease;
}

.btn-social:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  background: #222;
  transform: translateY(-2px);
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 80px 8%;
  border-top: 1px solid #222;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* --- Animação JS --- */
.js-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.js-scroll-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsivo --- */
@media (max-width: 992px) {
  nav {
    padding: 1.5rem 5%;
    justify-content: space-between;
  }

  .mobile-menu {
    display: block;
    z-index: 1001;
  }

  .nav-list {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: #0a0a0a;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 50px;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: 999;
  }

  .nav-list.active {
    transform: translateX(0);
  }

  .nav-list a {
    font-size: 1.5rem;
    font-weight: 600;
  }

  .mobile-menu.active .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
  }

  .mobile-menu.active .line2 {
    opacity: 0;
  }

  .mobile-menu.active .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
  }

  section {
    padding: 80px 5% 0;
  }

  #hero {
    padding: 60px 5% 80px;
    text-align: center;
    flex-direction: column;
  }

  h1 {
    font-size: 2.5rem;
  }

  .sobre-container {
    flex-direction: column;
    align-items: center;
    gap: 40px;
    text-align: center;
  }

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

  .projetos-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

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