body {
            margin: 0;
            font-family: Arial, Helvetica, sans-serif;
            background: linear-gradient(135deg, #020617, #0f172a);
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
        }

        .login-box {
            background: #020617;
            padding: 30px;
            border-radius: 12px;
            width: 100%;
            max-width: 350px;
            border: 1px solid #1e293b;
            box-shadow: 0 0 20px rgba(0,0,0,0.5);
            text-align: center;
        }

        .logo img {
            width: 260px;
            height: 210px;
            margin-bottom: 10px;
        }

        @keyframes girar {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }

        h1 {
            margin-bottom: 20px;
            font-size: 22px;
        }

        input {
            width: 90%;
            padding: 12px;
            margin: 0 auto 12px auto;
            border-radius: 6px;
            border: 1px solid #334155;
            background: #0f172a;
            color: white;
            font-size: 14px;
            display: block;
        }

        button {
            width: 100%;
            padding: 12px;
            border: none;
            border-radius: 6px;
            background: #f97316;
            color: white;
            font-weight: bold;
            cursor: pointer;
            font-size: 15px;
        }

        button:hover {
            background: #ea580c;
        }

        .error {
            color: #ef4444;
            margin-top: 10px;
            display: none;
        }

        .footer {
            margin-top: 15px;
            font-size: 12px;
            color: #94a3b8;
        }

        .btn-suporte {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;

    background: #25D366;
    color: #fff;
    text-decoration: none;

    padding: 12px;
    border-radius: 8px;
    font-weight: bold;

    margin-top: 15px;

    transition: all 0.3s ease;
}

.btn-suporte:hover {
    background: #1ebe5d;
    transform: scale(1.05);
}

.btn-suporte span {
    font-size: 18px;
}