:root {
            /* Tema Claro (Padrão) */
            --bg-body: #f1f5f9; /* Um cinza um pouco mais quente para contraste */
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --accent: #3b82f6; /* Azul Principal */
            --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #2dd4bf 100%);
            --border: #e2e8f0;
            --card-shadow: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.05);
            --card-hover-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.15), 0 10px 10px -5px rgba(15, 23, 42, 0.1);
            --glass-blur: blur(0px); /* Sem blur no claro */
        }

        [data-theme="dark"] {
            --bg-body: #0b1120; /* Fundo mais profundo */
            --bg-card: rgba(30, 41, 59, 0.7); /* Transparência para o vidro */
            --text-main: #f1f5f9;
            --text-muted: #94a3b8;
            --accent: #60a5fa;
            --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #4fd1c5 100%);
            --border: rgba(51, 65, 85, 0.5);
            --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
            --card-hover-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            --glass-blur: blur(12px); /* Ativa o Glassmorphism no escuro */
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Calibri', sans-serif;
        }

        body {
            background-color: var(--bg-body);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 2rem;
            transition: background-color 0.4s ease, color 0.4s ease;
            overflow-x: hidden;
        }

        /* Botão de Tema */
        .theme-toggle {
            width: 50px;
            height: 50px;
            padding: 0;
            border-radius: 50%;
            position: fixed;
            top: 25px;
            right: 25px;
            background: var(--bg-card);
            border: 1px solid var(--border);

            cursor: pointer;
            box-shadow: var(--card-shadow);
            color: var(--accent);
            z-index: 100;
            transition: all 0.3s ease;
        }

        .theme-toggle:hover {
            transform: scale(1.1) rotate(15deg);
        }

        header {
            text-align: center;
            margin: 4rem 0;
            animation: fadeInDown 0.8s ease-out;
        }
        
        .logo-titulo {
            display: inline-flex;   /* coloca imagem e texto lado a lado */
            align-items: center;    /* alinha verticalmente */
            justify-content: center;/* centraliza dentro do header */
            gap: 10px;              /* espaço entre imagem e texto */
        }
        
        header h1 {
            font-size: 3.5rem;
            font-weight: 700;
            letter-spacing: -2px;
        }
        
        header span {
            color: var(--accent);
            position: relative;
        }
        
        header span::after {
            content: '';
            position: absolute;
            bottom: 5px; left: 0;
            width: 100%; height: 4px;
            background: var(--accent-gradient);
            border-radius: 2px;
        }
        
        header p {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-top: 10px;
        }
        
        .logo-titulo img {
            width: 60px;
            height: auto;
        }



        /* Grid */
        .hub-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
            width: 100%;
            max-width: 1200px;
            flex-grow: 1;
            perspective: 1000px; /* Necessário para efeito 3D no hover */
        }

        /* CARD MODERNO - ATUALIZAÇÕES PRINCIPAIS */
        .link-card {
            background: var(--bg-card);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--border);
            padding: 2rem;
            border-radius: 20px; /* Bordas mais arredondadas */
            display: flex;
            align-items: center;
            text-decoration: none;
            color: inherit;
            box-shadow: var(--card-shadow);
            
            /* Transições suaves para todos os efeitos */
            transition: 
                transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                box-shadow 0.4s ease, 
                border-color 0.3s ease,
                background-color 0.4s ease;
            
            position: relative;
            overflow: hidden; /* Para o brilho interno */
            
            /* Animação de entrada (cascata) */
            opacity: 0;
            animation: fadeInUp 0.6s ease-out forwards;
        }

        /* Efeito de Hover Avançado */
        .link-card:hover {
            transform: translateY(-8px) scale(1.02) rotateX(2deg); /* Elevação, escala e leve 3D */
            box-shadow: var(--card-hover-shadow);
            border-color: rgba(59, 130, 246, 0.3);
        }

        /* Borda Inferior de Gradiente no Hover */
        .link-card::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0;
            width: 100%; height: 0px;
            background: var(--accent-gradient);
            transition: height 0.3s ease;
        }

        .link-card:hover::after {
            height: 4px;
        }

        /* Ícone Modernizado */
        .icon-box {
            width: 65px;
            height: 65px;
            background: var(--bg-body); /* Fundo contrastante leve */
            border: 1px solid var(--border);
            border-radius: 16px;
            display: flex;
            justify-content: center;
            align-items: center;
            margin-right: 1.5rem;
            font-size: 1.6rem;
            color: var(--accent);
            transition: all 0.3s ease;
            flex-shrink: 0; /* Impede o ícone de esmagar */
        }

        .link-card:hover .icon-box {
            background: var(--accent-gradient);
            color: white;
            transform: scale(1.1) rotate(-5deg);
            border-color: transparent;
        }

        .info h3 { 
            font-size: 1.3rem; 
            font-weight: 500;
            margin-bottom: 6px; 
            letter-spacing: -0.5px;
        }
        
        .info p { 
            font-size: 0.95rem; 
            color: var(--text-muted); 
            line-height: 1.4;
        }

        /* Seta Dinâmica (Opcional, mas dá classe) */
        .card-arrow {
            margin-left: auto;
            color: var(--accent);
            opacity: 0;
            transform: translateX(-10px);
            transition: all 0.3s ease;
            font-size: 1.2rem;
        }

        .link-card:hover .card-arrow {
            opacity: 1;
            transform: translateX(0);
        }

        /* Footer & Modais */
        footer {
            margin-top: 5rem;
            padding: 2.5rem 2rem;
            border-top: 1px solid var(--border);
            width: 100%;
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .footer-links {
            margin-top: 10px;
        }

        .footer-links span {
            margin: 0 12px;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        
        .footer-links span:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .modal {
            display: none;
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(15, 23, 42, 0.8);
            backdrop-filter: blur(8px);
            justify-content: center; align-items: center;
            z-index: 1000;
            padding: 20px;
            animation: fadeIn 0.3s ease;
        }

        .modal-content {
            background: var(--bg-card);
            border: 1px solid var(--border);
            padding: 2.5rem;
            border-radius: 20px;
            max-width: 650px;
            max-height: 85vh;
            overflow-y: auto;
            position: relative;
            box-shadow: var(--card-hover-shadow);
        }

        .close-modal {
            position: absolute;
            top: 15px; right: 20px;
            font-size: 1.8rem; cursor: pointer;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        
        .close-modal:hover { color: var(--accent); }
        
        .modal-text h2 { margin-bottom: 1.5rem; color: var(--accent); letter-spacing: -1px;}
        .modal-text p { margin-bottom: 1rem; line-height: 1.6; color: var(--text-main); }

        /* Keyframes de Animação */
        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
        @keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }
        @keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

        @media (max-width: 700px) {
            body { padding: 1rem; }
            header { margin: 2.5rem 0; }
            header h1 { font-size: 2.5rem; }
            .hub-container { grid-template-columns: 1fr; gap: 1.2rem;}
            .link-card { padding: 1.5rem; }
            .icon-box { width: 55px; height: 55px; font-size: 1.4rem; margin-right: 1rem;}
        }