:root {
    --bg-main: #0f172a;
    --bg-sec: #16213e;
    --accent: #00d2ff;
    --text: #ffffff;
    --text-dim: #94a3b8;
    --card-gray: #6d6567;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text);
    font-family: 'Segoe UI', sans-serif;
    scroll-behavior: smooth;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.dark-bg {
    background-color: var(--bg-sec);
}

/* Navbar */
.navbar {
    background: rgba(15, 23, 42, 0.95);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 210, 255, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    text-decoration: none;
}

.logo span {
    color: var(--accent);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-weight: 500;
    transition: 0.3s;
}

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

.btn-contato-nav {
    background: var(--accent);
    color: var(--bg-main) !important;
    padding: 8px 20px;
    border-radius: 5px;
}

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
}

.profile-pic {
    width: 120px;
    height: 120px;
    background: var(--card-gray);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    border: 4px solid var(--accent);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.hero h2 {
    color: var(--text-dim);
    font-weight: 400;
    margin-bottom: 20px;
}

.hero h2 span {
    color: var(--accent);
    font-weight: bold;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 1.5rem;
}

.social-links a {
    color: white;
    transition: 0.3s;
}

.social-links a:hover {
    color: var(--accent);
    transform: translateY(-3px);
}

/* About & Experience */
.section-title {
    font-size: 2rem;
    margin-bottom: 40px;
    text-align: center;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.skills-grid {
    display: flex;
    wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background: var(--card-gray);
    padding: 8px 15px;
    border-radius: 5px;
    font-size: 0.9rem;
    border-left: 3px solid var(--accent);
}

.experience-card {
    background: var(--bg-main);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid rgba(0, 210, 255, 0.1);
}

.exp-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    color: var(--accent);
}

/* Hub Card */
.hub-link-card {
    background: linear-gradient(135deg, #16213e, #0f172a);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    border: 2px dashed var(--accent);
}

.hub-link-card i {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.btn-link {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 30px;
    background: var(--accent);
    color: var(--bg-main);
    text-decoration: none;
    font-weight: bold;
    border-radius: 50px;
}

/* Footer */
.footer {
    padding: 60px 0 20px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.email-link {
    font-size: 1.5rem;
    color: var(--accent);
    text-decoration: none;
    display: block;
    margin: 20px 0;
}

.footer-bottom {
    margin-top: 40px;
    font-size: 0.8rem;
    color: var(--text-dim);
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.2rem;
    }
}
/* Estilo Botão WhatsApp Flutuante */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    animation: pulse-green 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.1);
    color: white;
}

/* Tooltip (balão de texto ao passar o mouse) */
.whatsapp-float .tooltip {
    visibility: hidden;
    width: 180px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%; 
    right: 0;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 14px;
    font-family: sans-serif;
}

.whatsapp-float:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

/* Animação de Pulsação */
@keyframes pulse-green {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Ajuste para Mobile */
@media (max-width: 768px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 25px;
    }
}