/* --- RESET E VARIÁVEIS --- */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --border-color: #30363d;
}

html { scroll-behavior: smooth; }
body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Fira Code', monospace;
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }

/* --- NAV --- */
.navbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 8%; position: fixed; width: 100%; top: 0;
    background: rgba(13,17,23,0.95); backdrop-filter: blur(10px);
    z-index: 1000; border-bottom: 1px solid var(--border-color);
}
.logo { color: var(--accent-color); font-weight: 700; font-size: 1.2rem; }
.nav-links { display: flex; gap: 25px; }
.nav-links a:hover { color: var(--accent-color); }

.language-switch { color: var(--text-secondary); display: flex; gap: 8px; }
.lang-btn { background: none; border: none; color: inherit; cursor: pointer; font-family: inherit; font-weight: bold; }
.lang-btn.active, .lang-btn:hover { color: var(--accent-color); }

/* --- SEÇÕES --- */
.section { padding: 100px 10%; min-height: 80vh; display: flex; flex-direction: column; justify-content: center; }
.section-title {
    font-size: 1.8rem; margin-bottom: 40px; display: flex; align-items: center;
}
.section-title::before {
    content: "▹"; color: var(--accent-color); margin-right: 15px;
}
.section-title::after {
    content: ""; flex-grow: 1; height: 1px; background: var(--border-color); margin-left: 20px; max-width: 200px;
}

/* --- HERO --- */
.hero {
    height: 100vh; display: flex; align-items: center; justify-content: space-between;
    padding: 0 10%; gap: 30px;
}
.hero-content { max-width: 600px; }
.greeting { color: var(--accent-color); margin-bottom: 10px; }
.hero h1 { font-size: 3.5rem; line-height: 1.1; margin-bottom: 10px; }
.hero h2 { font-size: 1.8rem; color: var(--text-secondary); margin-bottom: 20px; min-height: 1.8rem; }
.location { color: var(--text-secondary); margin-bottom: 30px; display: flex; align-items: center; gap: 8px; }
.cursor { animation: blink 1s infinite; border-right: 2px solid var(--accent-color); }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* FOTO DE PERFIL */
.hero-img { display: flex; justify-content: center; align-items: center; }
.img-container {
    width: 350px; height: 350px; border-radius: 50%; border: 3px solid var(--accent-color);
    box-shadow: 0 0 30px rgba(88, 166, 255, 0.3); overflow: hidden;
    animation: float 6s ease-in-out infinite; background-color: var(--card-bg);
}
.img-container img {
    width: 100%; height: 100%; object-fit: cover; object-position: center top;
    filter: grayscale(20%); transition: 0.5s;
}
.img-container:hover { box-shadow: 0 0 50px rgba(88, 166, 255, 0.6); border-color: #fff; }
.img-container:hover img { filter: grayscale(0%); transform: scale(1.05); }
@keyframes float { 0% { transform: translateY(0px); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0px); } }

/* BOTÕES */
.cta-buttons { display: flex; gap: 15px; }
.btn { padding: 12px 28px; border: 1px solid var(--accent-color); color: var(--accent-color); border-radius: 4px; cursor: pointer; text-align: center; display: inline-block;}
.btn:hover { background: rgba(88,166,255,0.1); }
.btn-outline { border-color: var(--text-secondary); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--accent-color); color: var(--accent-color); }

/* --- SOBRE (2 Colunas) --- */
.about-container { display: grid; grid-template-columns: 1.5fr 1fr; gap: 50px; }
.soft-skills { margin-top: 20px; display: flex; gap: 10px; flex-wrap: wrap; }
.badge { background: var(--card-bg); padding: 5px 12px; border-radius: 15px; font-size: 0.8rem; border: 1px solid var(--border-color); color: var(--accent-color); }

.skills-box { background: var(--card-bg); padding: 25px; border-radius: 8px; border: 1px solid var(--border-color); }
.skills-box h3 { margin-bottom: 20px; color: var(--text-primary); }
.skill-category { margin-bottom: 15px; }
.skill-category span { color: var(--accent-color); font-size: 0.9rem; display: block; margin-bottom: 5px; }
.tags { color: var(--text-secondary); font-size: 0.9rem; }

/* --- PROJETOS --- */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; margin-top: 20px; }
.project-card {
    background: var(--card-bg); padding: 25px; border-radius: 6px; border: 1px solid var(--border-color);
    display: flex; flex-direction: column; height: 100%; transition: 0.3s;
}
.project-card:hover { transform: translateY(-5px); border-color: var(--accent-color); }
.card-header { display: flex; justify-content: space-between; margin-bottom: 20px; }
.folder-icon { font-size: 1.8rem; color: var(--accent-color); }
.external-links a { font-size: 1.2rem; color: var(--text-secondary); margin-left: 10px; }
.external-links a:hover { color: var(--accent-color); }
.project-card h3 { margin-bottom: 10px; font-size: 1.2rem; }
.project-card p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 20px; flex-grow: 1; }
.tech-tags { display: flex; gap: 10px; font-size: 0.75rem; color: var(--text-secondary); flex-wrap: wrap; }
.featured-card { border-left: 3px solid var(--accent-color); }

/* --- TIMELINE --- */
.timeline { border-left: 2px solid var(--border-color); margin-left: 10px; padding-left: 30px; }
.timeline-item { position: relative; margin-bottom: 40px; }
.timeline-item::before {
    content: ""; position: absolute; left: -36px; top: 5px; width: 10px; height: 10px;
    background: var(--accent-color); border-radius: 50%; box-shadow: 0 0 10px var(--accent-color);
}
.timeline-item .date { font-size: 0.8rem; color: var(--accent-color); font-family: monospace; }
.timeline-item h3 { margin: 5px 0; font-size: 1.1rem; }
.timeline-item .desc { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 10px; }

.cert-img-wrapper {
    margin-top: 10px; max-width: 300px; border-radius: 4px; overflow: hidden;
    border: 1px solid var(--border-color); transition: 0.3s; cursor: pointer; position: relative;
}
.cert-img-wrapper img { width: 100%; display: block; opacity: 0.8; transition: 0.3s; }
.cert-img-wrapper:hover { border-color: var(--accent-color); transform: scale(1.02); }
.cert-img-wrapper:hover img { opacity: 1; }
.zoom-hint {
    position: absolute; bottom: 5px; right: 5px; font-size: 0.7rem; background: rgba(0,0,0,0.7);
    color: #fff; padding: 2px 6px; border-radius: 3px; opacity: 0; transition: 0.3s;
}
.cert-img-wrapper:hover .zoom-hint { opacity: 1; }

/* --- CONTATO & FORMULÁRIO --- */
#contact { text-align: center; } 
#contact .section-title { justify-content: center; } 
#contact .section-title::after { display: none; } 

.contact-container {
    max-width: 600px; margin: 0 auto; background-color: var(--card-bg);
    padding: 40px; border-radius: 10px; border: 1px solid var(--border-color); text-align: center;
}

.contact-form { margin-top: 30px; text-align: left; }
.form-group { margin-bottom: 20px; }
.contact-form input, .contact-form textarea {
    width: 100%; padding: 12px; background-color: var(--bg-color); border: 1px solid var(--border-color);
    color: var(--text-primary); border-radius: 4px; font-family: inherit; font-size: 0.9rem;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none; border-color: var(--accent-color);
}
.big-btn { margin-top: 10px; width: 100%; font-size: 1rem; }

.socials { margin-top: 30px; display: flex; justify-content: center; gap: 40px; }
.socials a {
    font-size: 2rem; color: var(--text-secondary); transition: 0.3s;
    background: rgba(255,255,255,0.05); width: 60px; height: 60px;
    display: flex; align-items: center; justify-content: center; border-radius: 50%; 
}
.socials a:hover { color: var(--bg-color); background: var(--accent-color); transform: translateY(-5px); }

footer { text-align: center; padding: 30px; color: var(--text-secondary); font-size: 0.8rem; }

/* --- BOTÃO VOLTAR AO TOPO --- */
#back-to-top {
    position: fixed; bottom: 30px; right: 30px;
    background-color: var(--accent-color); color: var(--bg-color);
    width: 45px; height: 45px; border-radius: 50%;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.2rem; box-shadow: 0 0 10px rgba(88, 166, 255, 0.4);
    opacity: 0; visibility: hidden; transition: 0.3s; z-index: 999;
}
#back-to-top:hover { transform: translateY(-5px); box-shadow: 0 0 20px rgba(88, 166, 255, 0.8); }
#back-to-top.show { opacity: 1; visibility: visible; }

/* RESPONSIVO */
@media (max-width: 900px) {
    .hero { flex-direction: column; text-align: center; justify-content: center; padding-top: 100px; }
    .hero-img { margin-top: 40px; }
    .img-container { width: 250px; height: 250px; }
    .about-container { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .socials { gap: 20px; }
    .socials a { width: 50px; height: 50px; font-size: 1.5rem; }
    .cert-img-wrapper { max-width: 100%; }
}