/* 1. Variáveis e Configurações de Sistema */
:root {
    /* Paleta Científica Principal */
    --primary-science: #0ea5e9;
    --primary-hover: #0284c7;
    --primary-glow: rgba(14, 165, 233, 0.3);
    
    /* Configurações de Vidro (Glassmorphism) */
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    
    /* Animações */
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: all 0.3s ease;
}

/* Ajustes para Modo Claro (Bootstrap handle automaticamente, mas refinamos aqui) */
[data-bs-theme="light"] {
    --glass-bg: rgba(248, 250, 252, 0.8);
    --glass-border: rgba(15, 23, 42, 0.08);
}

.logo-kaio {
    width: 150px;
    height: auto;
    max-width: 80px;
    margin-right: 10px;
}


html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 2. Tipografia e Cores de Texto */
h1, h2, h3, h4 {
    letter-spacing: -0.04em;
    font-weight: 700;
}

.text-science {
    color: var(--primary-science) !important;
}


/* Efeito de Borda Neon Azul para a Foto */
.profile-frame {
    position: relative;
    display: inline-block;
    padding: 8px; /* Espaçamento para o brilho não cortar */
}

.profile-frame img {
    max-width: 320px;
    height: auto;
    /* Borda sólida azul cyan */
    border: 4px solid #0ea5e9 !important; 
    border-radius: 2rem; /* Deixa os cantos arredondados como na imagem */
    
    /* Camadas de brilho (Glow) */
    box-shadow: 
        0 0 10px rgba(14, 165, 233, 0.8),  /* Brilho interno */
        0 0 20px rgba(14, 165, 233, 0.4),  /* Brilho médio */
        0 0 30px rgba(14, 165, 233, 0.2);  /* Brilho externo suave */
        
    transition: var(--transition);
}

/* Aumenta o brilho quando passa o mouse */
.profile-frame:hover img {
    box-shadow: 
        0 0 15px rgba(14, 165, 233, 1), 
        0 0 30px rgba(14, 165, 233, 0.6), 
        0 0 45px rgba(14, 165, 233, 0.3);
    transform: scale(1.02);
}

.code-snippet {
    font-family: 'Fira Code', 'Courier New', monospace;
    color: var(--primary-science);
    background: rgba(14, 165, 233, 0.1);
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    border-color: #0ea5e9;
}

/* 3. Navbar Científica */
.navbar {
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transition: var(--transition);
}

.nav-link {
    position: relative;
    transition: var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 5px;
    left: 0;
    background-color: var(--primary-science);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--primary-science) !important;
}

/* 4. Glassmorphism e Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border) !important;
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-science) !important;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3) !important;
}

/* 5. Tech Badges (Habilidades) */
.tech-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.tech-badge i {
    font-size: 2.8rem;
    margin-bottom: 12px;
    transition: var(--transition);
}

.tech-badge:hover {
    background: rgba(14, 165, 233, 0.1);
    border-color: var(--primary-science);
    color: var(--primary-science);
    transform: scale(1.05);
}

/* 6. Botões Customizados */
.btn-science {
    background-color: var(--primary-science);
    color: #fff;
    border: none;
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    transition: var(--transition);
}

.btn-science:hover {
    background-color: var(--primary-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--primary-glow);
}

.btn-outline-science {
    border: 2px solid var(--primary-science);
    color: var(--primary-science);
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-science:hover {
    background-color: var(--primary-science);
    color: #fff;
}

/* 7. Timeline de Carreira */
#work-history .card {
    border-left-width: 5px !important;
}

/* 8. Responsividade e Utilidades */
.cursor-pointer { cursor: pointer; }

@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--bs-body-tertiary);
        padding: 1.5rem;
        border-radius: 1rem;
        margin-top: 1rem;
        border: 1px solid var(--glass-border);
    }
}

@media (max-width: 768px) {
    .display-2 { font-size: 2.8rem; }
    .display-3 { font-size: 2.2rem; }
}