:root {
    /* --- Cores de Fundo --- */
    --bg-dark-start: #0f172a;
    --bg-dark-end: #1e1b4b;
    --bg-dark-transparent: rgba(0, 0, 0, 0.4);
    
    /* --- Efeito Vidro (Glass) e Sombras --- */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-light: rgba(255, 255, 255, 0.05);
    --shadow-dark: rgba(0, 0, 0, 0.2);
    
    /* --- Cores de Texto --- */
    --text-title: #ffffff;
    --text-body: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* --- Cores de Destaque (Néon) --- */
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.3);
    --accent-purple: #8b5cf6;
    --accent-purple-light: rgba(139, 92, 246, 0.15);
    --accent-purple-lighter: #a78bfa;
}

/* --- Estilos Base --- */
body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-dark-start) 0%, var(--bg-dark-end) 100%);
    color: var(--text-body);
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 50px 20px;
    transition: opacity 1s ease, transform 1s ease;
}

.esconder-inicio {
    opacity: 0;
    transform: translateY(20px);
}

/* --- O Logo Oficial --- */
.logo-projeto {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--accent-cyan);
    text-align: center;
    margin-bottom: 40px;
    letter-spacing: 2px;
}
.logo-projeto span { 
    color: var(--accent-purple); 
}

/* --- A Caixa Principal (Glassmorphism) --- */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 50px;
    box-shadow: 0 10px 40px var(--shadow-dark);
}

/* --- Secção dos Gráficos --- */
.dashboard-demo {
    background: var(--bg-dark-transparent);
    border: 1px solid var(--glass-border-light);
    border-radius: 16px;
    padding: 30px;
    margin: 40px 0;
}

.dashboard-demo h3 {
    margin-top: 0;
    color: var(--accent-purple);
    margin-bottom: 30px;
}

.grafico-barras {
    display: flex;
    justify-content: space-around;
    align-items: flex-end; /* Alinha as barras por baixo */
    height: 250px; /* Altura do gráfico */
    padding-bottom: 10px;
    border-bottom: 1px solid var(--glass-border);
}

.barra-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 40px;
    height: 100%;
    justify-content: flex-end;
}

.barra {
    width: 100%;
    height: 0; /* Começa no zero para a animação */
    background: linear-gradient(to top, var(--accent-cyan), var(--accent-purple)); /* Gradiente Néon */
    border-radius: 6px 6px 0 0;
    transition: height 1.5s cubic-bezier(0.25, 1, 0.5, 1);
    box-shadow: 0 0 15px var(--accent-cyan-glow); /* Brilho */
}

.barra-container span {
    margin-top: 15px;
    font-size: 0.85em;
    color: var(--text-muted);
}

/* --- Textos e Layout --- */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

h1, h2 { color: var(--text-title); }

p { 
    line-height: 1.7; 
    color: var(--text-body); 
    font-size: 1.05em;
}

.descricao-destaque {
    font-size: 1.25em; 
    margin-top: 20px;
}

.tags-container {
    margin-bottom: 30px;
}

.tag {
    background: var(--accent-purple-light); /* Fundo roxo transparente */
    color: var(--accent-purple-lighter);
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 0.9em;
    font-weight: bold;
    margin-right: 10px;
    display: inline-block;
}

/* Responsividade */
@media (max-width: 768px) {
    .info-grid { grid-template-columns: 1fr; }
    .glass-panel { padding: 25px; }
    .grafico-barras { height: 180px; }
}

    /* --- Bot���o Flutuante (Voltar) --- */
    .floating-button {
        position: fixed;
        bottom: 20px;
        right: 20px;
        background-color: #333;
        color: white;
        padding: 12px 20px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: bold;
        font-size: 0.9em;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        transition: background-color 0.3s ease;
        z-index: 1000;
    }
    .floating-button:hover {
        background-color: #555;
    }